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progress on migrating to heex templates and font-icons

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Adam Piontek 2022-08-13 07:32:36 -04:00
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## 1.0.0-alpha.37 (October 22, 2019)
- Bumped `source-map` version to `^0.6.1` to fix source map generation inconsistency across node.js versions due to mappings sorting bug and v8 moving to [a stable Array#sort](https://v8.dev/blog/array-sort) ([fix commit](https://github.com/mozilla/source-map/commit/f35a2e4212dd025cb5e1fc219e7ac8a4b96c2cc9) in `source-map`)
## 1.0.0-alpha.36 (October 13, 2019)
- Dropped support for Node < 8
- Updated dev deps (fixed `npm audit` issues)
- Reworked build pipeline
- Package provides `dist/csstree.js` and `dist/csstree.min.js` now (instead of single `dist/csstree.js` that was a min version)
- Bundle size (min version) reduced from 191Kb to 158Kb due to some optimisations
- Definition syntax
- Renamed `grammar` into `definitionSyntax` (named per spec)
- Added `compact` option to `generate()` method to avoid formatting (spaces) when possible
- Lexer
- Changed `dump()` method to produce syntaxes in compact form by default
## 1.0.0-alpha.35 (October 7, 2019)
- Walker
- Changed implementation to avoid runtime compilation due to CSP issues (see #91, #109)
- Added `find()`, `findLast()` and `findAll()` methods (e.g. `csstree.find(ast, node => node.type === 'ClassSelector')`)
## 1.0.0-alpha.34 (July 27, 2019)
- Tokenizer
- Added `isBOM()` function
- Added `charCodeCategory()` function
- Removed `firstCharOffset()` function (use `isBOM()` instead)
- Removed `CHARCODE` dictionary
- Removed `INPUT_STREAM_CODE*` dictionaries
- Lexer
- Allowed comments in matching value (just ignore them like whitespaces)
- Increased iteration count in value matching from 10k up to 15k
- Fixed missed `debugger` (#104)
## 1.0.0-alpha.33 (July 11, 2019)
- Lexer
- Fixed low priority productions matching by changing an approach for robust one (#103)
## 1.0.0-alpha.32 (July 11, 2019)
- Lexer
- Fixed low priority productions matching in long `||-` and `&&-` groups (#103)
## 1.0.0-alpha.31 (July 11, 2019)
- Bumped `mdn/data` to `2.0.4` (#99)
- Lexer
- Added [bracketed range notation](https://drafts.csswg.org/css-values-4/#numeric-ranges) support and related refactoring
- Removed `<number-zero-one>`, `<number-one-or-greater>` and `<positive-integer>` from generic types. In fact, types moved to patch, because those types can be expressed in a regular grammar due to bracketed range notation implemented
- Added support for multiple token string matching
- Improved `<custom-ident>` production matching to claim the keyword only if no other unfulfilled production can claim it (#101)
- Improved `<length>` production matching to claim "unitless zero" only if no other unfulfilled production can claim it
- Changed lexer's constructor to prevent generic types override when used
- Fixed large `||`- and `&&`-group matching, matching continues from the beginning on term match (#85)
- Fixed checking that value has `var()` occurrences when value is a string (such values can't be matched on syntax currently and fail with specific error that can be used for ignorance in validation tools)
- Fixed `<declaration-value>` and `<any-value>` matching when a value contains a function, parentheses or braces
## 1.0.0-alpha.30 (July 3, 2019)
- Bumped `mdn/data` to `~2.0.3`
- Removed type removals from `mdn/data` due to lack of some generic types and specific lexer restictions (since lexer was reworked, see below)
- Reduced and updated patches
- Tokenizer
- Reworked tokenizer itself to compliment [CSS Syntax Module Level 3](https://drafts.csswg.org/css-syntax/#tokenization)
- `Tokenizer` class splitted into several abstractions:
- Added `TokenStream` class
- Added `OffsetToLocation` class
- Added `tokenize()` function that creates `TokenStream` instance for given string or updates a `TokenStream` instance passed as second parameter
- Removed `Tokenizer` class
- Removed `Raw` token type
- Renamed `Identifier` token type to `Ident`
- Added token types: `Hash`, `BadString`, `BadUrl`, `Delim`, `Percentage`, `Dimension`, `Colon`, `Semicolon`, `Comma`, `LeftSquareBracket`, `RightSquareBracket`, `LeftParenthesis`, `RightParenthesis`, `LeftCurlyBracket`, `RightCurlyBracket`
- Replaced `Punctuator` with `Delim` token type, that excludes specific characters with its own token type like `Colon`, `Semicolon` etc
- Removed `findCommentEnd`, `findStringEnd`, `findDecimalNumberEnd`, `findNumberEnd`, `findEscapeEnd`, `findIdentifierEnd` and `findUrlRawEnd` helper function
- Removed `SYMBOL_TYPE`, `PUNCTUATION` and `STOP_URL_RAW` dictionaries
- Added `isDigit`, `isHexDigit`, `isUppercaseLetter`, `isLowercaseLetter`, `isLetter`, `isNonAscii`, `isNameStart`, `isName`, `isNonPrintable`, `isNewline`, `isWhiteSpace`, `isValidEscape`, `isIdentifierStart`, `isNumberStart`, `consumeEscaped`, `consumeName`, `consumeNumber` and `consumeBadUrlRemnants` helper functions
- Parser
- Changed parsing algorithms to work with new token type set
- Changed `HexColor` consumption in way to relax checking a value, i.e. now `value` is a sequence of one or more name chars
- Added `&` as a property hack
- Relaxed `var()` parsing to only check that a first arguments is an identifier (not a custom property name as before)
- Lexer
- Reworked syntax matching to relay on token set only (having AST is optional now)
- Extended `Lexer#match()`, `Lexer#matchType()` and `Lexer#matchProperty()` methods to take a string as value, beside AST as a value
- Extended `Lexer#match()` method to take a string as a syntax, beside of syntax descriptor
- Reworked generic types:
- Removed `<attr()>`, `<url>` (moved to patch) and `<progid>` types
- Added types:
- Related to token types: `<ident-token>`, `<function-token>`, `<at-keyword-token>`, `<hash-token>`, `<string-token>`, `<bad-string-token>`, `<url-token>`, `<bad-url-token>`, `<delim-token>`, `<number-token>`, `<percentage-token>`, `<dimension-token>`, `<whitespace-token>`, `<CDO-token>`, `<CDC-token>`, `<colon-token>`, `<semicolon-token>`, `<comma-token>`, `<[-token>`, `<]-token>`, `<(-token>`, `<)-token>`, `<{-token>` and `<}-token>`
- Complex types: `<an-plus-b>`, `<urange>`, `<custom-property-name>`, `<declaration-value>`, `<any-value>` and `<zero>`
- Renamed `<unicode-range>` to `<urange>` as per spec
- Renamed `<expression>` (IE legacy extension) to `<-ms-legacy-expression>` and may to be removed in next releases
## 1.0.0-alpha.29 (May 30, 2018)
- Lexer
- Syntax matching was completely reworked. Now it's token-based and uses state machine. Public API has not changed. However, some internal data structures have changed. Most significal change in syntax match result tree structure, it's became token-based instead of node-based.
- Grammar
- Changed grammar tree format:
- Added `Token` node type to represent a single code point (`<delim-token>`)
- Added `Multiplier` that wraps a single node (`term` property)
- Added `AtKeyword` to represent `<at-keyword-token>`
- Removed `Slash` and `Percent` node types, they are replaced for a node with `Token` type
- Changed `Function` to represent `<function-token>` with no children
- Removed `multiplier` property from `Group`
- Changed `generate()` method:
- Method takes an `options` as second argument now (`generate(node, forceBraces, decorator)` -> `generate(node, options)`). Two options are supported: `forceBraces` and `decorator`
- When a second parameter is a function it treats as `decorate` option value, i.e. `generate(node, fn)` -> `generate(node, { decorate: fn })`
- Decorate function invokes with additional parameter – a reference to a node
- Tokenizer
- Renamed `Atrule` const to `AtKeyword`
## 1.0.0-alpha.28 (February 19, 2018)
- Renamed `lexer.grammar.translate()` method into `generate()`
- Fixed `<'-webkit-font-smoothing'>` and `<'-moz-osx-font-smoothing'>` syntaxes (#75)
- Added vendor keywords for `<'overflow'>` property syntax (#76)
- Pinned `mdn-data` to `~1.1.0` and fixed issues with some updated property syntaxes
## 1.0.0-alpha.27 (January 14, 2018)
- Generator
- Changed node's `generate()` methods invocation, methods now take a node as a single argument and context (i.e. `this`) that have methods: `chunk()`, `node()` and `children()`
- Renamed `translate()` to `generate()` and changed to take `options` argument
- Removed `translateMarkup(ast, enter, leave)` method, use `generate(ast, { decorator: (handlers) => { ... }})` instead
- Removed `translateWithSourceMap(ast)`, use `generate(ast, { sourceMap: true })` instead
- Changed to support for children as an array
- Walker
- Changed `walk()` to take an `options` argument instead of handler, with `enter`, `leave`, `visit` and `reverse` options (`walk(ast, fn)` is still works and equivalent to `walk(ast, { enter: fn })`)
- Removed `walkUp(ast, fn)`, use `walk(ast, { leave: fn })`
- Removed `walkRules(ast, fn)`, use `walk(ast, { visit: 'Rule', enter: fn })` instead
- Removed `walkRulesRight(ast, fn)`, use `walk(ast, { visit: 'Rule', reverse: true, enter: fn })` instead
- Removed `walkDeclarations(ast, fn)`, use `walk(ast, { visit: 'Declaration', enter: fn })` instead
- Changed to support for children as array in most cases (`reverse: true` will fail on arrays since they have no `forEachRight()` method)
- Misc
- List
- Added `List#forEach()` method
- Added `List#forEachRight()` method
- Added `List#filter()` method
- Changed `List#map()` method to return a `List` instance instead of `Array`
- Added `List#push()` method, similar to `List#appendData()` but returns nothing
- Added `List#pop()` method
- Added `List#unshift()` method, similar to `List#prependData()` but returns nothing
- Added `List#shift()` method
- Added `List#prependList()` method
- Changed `List#insert()`, `List#insertData()`, `List#appendList()` and `List#insertList()` methods to return a list that performed an operation
- Changed `keyword()` method
- Changed `name` field to include a vendor prefix
- Added `basename` field to contain a name without a vendor prefix
- Added `custom` field that contain a `true` when keyword is a custom property reference
- Changed `property()` method
- Changed `name` field to include a vendor prefix
- Added `basename` field to contain a name without any prefixes, i.e. a hack and a vendor prefix
- Added `vendorPrefix()` method
- Added `isCustomProperty()` method
## 1.0.0-alpha.26 (November 9, 2017)
- Tokenizer
- Added `Tokenizer#isBalanceEdge()` method
- Removed `Tokenizer.endsWith()` method
- Parser
- Made the parser tolerant to errors by default
- Removed `tolerant` parser option (no parsing modes anymore)
- Removed `property` parser option (a value parsing does not depend on property name anymore)
- Canceled error for a handing semicolon in a block
- Canceled error for unclosed `Brackets`, `Function` and `Parentheses` when EOF is reached
- Fixed error when prelude ends with a comment for at-rules with custom prelude consumer
- Relaxed at-rule parsing:
- Canceled error when EOF is reached after a prelude
- Canceled error for an at-rule with custom block consumer when at-rule has no block (just don't apply consumer in that case)
- Canceled error on at-rule parsing when it occurs outside prelude or block (at-rule is converting to `Raw` node)
- Allowed for any at-rule to have a prelude and a block, even if it's invalid per at-rule syntax (the responsibility for this check is moved to lexer, since it's possible to construct a AST with such errors)
- Made a declaration value a safe parsing point (i.e. error on value parsing lead to a value is turning into `Raw` node, not a declaration as before)
- Excluded surrounding white spaces and comments from a `Raw` node that represents a declaration value
- Changed `Value` parse handler to return a node only with type `Value` (previously it returned a `Raw` node in some cases)
- Fixed issue with `onParseError()` is not invoked for errors occured on selector or declaration value parsing in some cases
- Changed using of `onParseError()` to stop parsing if handler throws an exception
- Lexer
- Changed `grammar.walk()` to invoke passed handler on entering to node rather than on leaving the node
- Improved `grammar.walk()` to take a walk handler pair as an object, i.e. `walk(node, { enter: fn, leave: fn })`
- Changed `Lexer#match*()` methods to take a node of any type, but with a `children` field
- Added `Lexer#match(syntax, node)` method
- Fixed `Lexer#matchType()` method to stop return a positive result for the CSS wide keywords
## 1.0.0-alpha25 (October 9, 2017)
- Parser
- Added fallback node as argument to `onParseError()` handler
- Fixed raw consuming in tolerant mode when selector is invalid (greedy consuming and redundant warnings)
- Fixed exception in tolerant mode caused by unknown at-rule with unclosed block
- Changed handling of semicolons:
- Hanging semicolon inside declaration blocks raise an error or turns into a `Raw` node in tolerant mode instead of being ignored
- Semicolon outside of declaration blocks opens a `Rule` node as part of selector instead of being ignored
- Aligned `parseAtrulePrelude` behaviour to `parseRulePrelude`
- Removed `Raw` node wraping into `AtrulePrelude` when `parseAtrulePrelude` is disabled
- Removed error emitting when at-rule has a custom prelude customer but no prelude is found (it should be validated by a lexer later)
- Generator
- Fixed performance issue with `translateWithSourceMap()`, flattening the string (because of mixing building string and indexing into it) turned it into a quadratic algorithm (approximate numbers can be found in [the quiz created by this case](https://gist.github.com/lahmatiy/ea25d0e623d88ca9848384b5707d52d9))
- Added support for a single solidus hack for `property()`
- Minor fixes for custom errors
## 1.0.0-alpha24 (September 14, 2017)
- Improved CSSTree to be stable for standart build-in objects extension (#58)
- Parser
- Renamed rule's `selector` to `prelude`. The reasons: [spec names this part so](https://www.w3.org/TR/css-syntax-3/#qualified-rule), and this branch can contain not only a selector (`SelectorList`) but also a raw payload (`Raw`). What's changed:
- Renamed `Rule.selector` to `Rule.prelude`
- Renamed `parseSelector` parser option to `parseRulePrelude`
- Removed option for selector parse in `SelectorList`
- Lexer
- Fixed undefined positions in a error when match a syntax to empty or white space only value
- Improved `Lexer#checkStructure()`
- Return a warning as an object with node reference and message
- No exception on unknown node type, return a warning instead
## 1.0.0-alpha23 (September 10, 2017)
- Fixed `Tokenizer#getRawLength()`'s false positive balance match to the end of input in some cases (#56)
- Rename walker's entry point methods to be the same as CSSTree exposed methods (i.e. `walk()`, `walkUp()` etc)
- Rename at-rule's `expression` to `prelude` (since [spec names it so](https://www.w3.org/TR/css-syntax-3/#at-rule))
- `AtruleExpression` node type → `AtrulePrelude`
- `Atrule.expression` field → `Atrule.prelude`
- `parseAtruleExpression` parser's option → `parseAtrulePrelude`
- `atruleExpression` parse context → `atrulePrelude`
- `atruleExpression` walk context reference → `atrulePrelude`
## 1.0.0-alpha22 (September 8, 2017)
- Parser
- Fixed exception on parsing of unclosed `{}-block` in tolerant mode
- Added tolerant mode support for `DeclarationList`
- Added standalone entry point, i.e. default parser can be used via `require('css-tree/lib/parser')` (#47)
- Generator
- Changed generator to produce `+n` when `AnPlusB.a` is `+1` to be "round-trip" with parser
- Added standalone entry point, i.e. default generators can be used via `require('css-tree/lib/generator')`
- Walker
- Added standalone entry point, i.e. default walkers can be used via `require('css-tree/lib/walker')` (#47)
- Lexer
- Added `default` keyword to the list of invalid values for `<custom-ident>` (since it reversed per [spec](https://www.w3.org/TR/css-values/#custom-idents))
- Convertors (`toPlainObject()` and `fromPlainObject()`) moved to `lib/convertor` (entry point is `require('css-tree/lib/convertor')`)
## 1.0.0-alpha21 (September 5, 2017)
- Tokenizer
- Added `Raw` token type
- Improved tokenization of `url()` with raw as url to be more spec complient
- Added `Tokenizer#balance` array computation on token layout
- Added `Tokenizer#getRawLength()` to compute a raw length with respect of block balance
- Added `Tokenizer#getTokenStart(offset)` method to get token start offset by token index
- Added `idx` and `balance` fields to each token of `Tokenizer#dump()` method result
- Parser
- Added `onParseError` option
- Reworked node parsers that consume a `Raw` node to use a new approach. Since now a `Raw` node builds in `parser#Raw()` function only
- Changed semantic of `parser#Raw()`, it takes 5 parameters now (it might to be changed in future)
- Changed `parser#tolerantParse()` to pass a start token index to fallback function instead of source offset
- Fixed `AtruleExpression` consuming in tolerant mode
- Atrule handler to convert an empty `AtruleExpression` node into `null`
- Changed `AtruleExpression` handler to always return a node (before it could return a `null` in some cases)
- Lexer
- Fixed comma match node for `#` multiplier
- Added reference name to `SyntaxReferenceError`
- Additional fixes on custom errors
- Reduced possible corruption of base config by `syntax.fork()`
## 1.0.0-alpha20 (August 28, 2017)
- Tokenizer
- Added `Atrule` token type (`<at-rule-token>` per spec)
- Added `Function` token type (`<function-token>` per spec)
- Added `Url` token type
- Replaced `Tokenizer#getTypes()` method with `Tokenizer#dump()` to get all tokens as an array
- Renamed `Tokenizer.TYPE.Whitespace` to `Tokenizer.TYPE.WhiteSpace`
- Renamed `Tokenizer.findWhitespaceEnd()` to `Tokenizer.findWhiteSpaceEnd()`
- Parser
- Added initial implementation of tollerant mode (turn on by passing `tolerant: true` option). In this mode parse errors are never occour and any invalid part of CSS turns into a `Raw` node. Current safe points: `Atrule`, `AtruleExpression`, `Rule`, `Selector` and `Declaration`. Feature is experimental and further improvements are planned.
- Changed `Atrule.expression` to contain a `AtruleExpression` node or `null` only (other node types is wrapping into a `AtruleExpression` node)
- Renamed `AttributeSelector.operator` to `AttributeSelector.matcher`
- Generator
- `translate()` method is now can take a function as second argument, that recieves every generated chunk. When no function is passed, default handler is used, it concats all the chunks and method returns a string.
- Lexer
- Used [mdn/data](https://github.com/mdn/data) package as source of lexer's grammar instead of local dictionaries
- Added `x` unit to `<resolution>` generic type
- Improved match tree:
- Omited Group (sequences) match nodes
- Omited empty match nodes (for terms with `zero or more` multipliers)
- Added `ASTNode` node type to contain a reference to AST node
- Fixed node duplication (uncompleted match were added to tree)
- Added AST node reference in match nodes
- Added comma match node by `#` multiplier
- Grammar
- Changed `translate()` function to get a handler as third argument (optional). That handler recieves result of node traslation and can be used for decoration purposes. See [example](https://github.com/csstree/docs/blob/04c65af44477b5ea05feb373482898122b2a4528/docs/syntax.html#L619-L627)
- Added `SyntaxParseError` to grammar export
- Reworked group and multipliers representation in syntax tree:
- Replaced `Sequence` for `Group` node type (`Sequence` node type removed)
- Added `explicit` boolean property for `Group`
- Only groups can have a multiplier now (other node types is wrapping into a single term implicit group when multiplier is applied)
- Renamed `nonEmpty` Group's property to `disallowEmpty`
- Added optimisation for syntax tree by dropping redundant root `Group` when it contains a single `Group` term (return this `Group` as a result)
- Changed lexer's match functionality
- Changed `Lexer#matchProperty()` and `Lexer#matchType()` to return an object instead of match tree. A match tree stores in `matched` field when AST is matched to grammar successfully, otherwise an error in `error` field. The result object also has some methods to test AST node against a match tree: `getTrace()`, `isType()`, `isProperty()` and `isKeyword()`
- Added `Lexer#matchDeclaration()` method
- Removed `Lexer#lastMatchError` (error stores in match result object in `error` field)
- Added initial implementation of search for AST segments (new lexer methods: `Lexer#findValueSegments()`, `Lexer#findDeclarationValueSegments()` and `Lexer#findAllSegments`)
- Implemented `SyntaxReferenceError` for unknown property and type references
- Renamed field in resulting object of `property()` function: `variable` → `custom`
- Fixed issue with readonly properties (e.g. `line` and `column`) of `Error` and exception on attempt to write in iOS Safari
## 1.0.0-alpha19 (April 24, 2017)
- Extended `List` class with new methods:
- `List#prepend(item)`
- `List#prependData(data)`
- `List#insertData(data)`
- `List#insertList(list)`
- `List#replace(item, itemOrList)`
## 1.0.0-alpha18 (April 3, 2017)
- Added `atrule` walk context (#39)
- Changed a result of generate method for `AnPlusB`, `AttributeSelector`, `Function`, `MediaFeature` and `Ratio` ([1e95877](https://github.com/csstree/csstree/commit/1e9587710efa8e9338bcf0bc794b4b45f286231d))
- Fixed typo in `List` exception messages (@strarsis, #42)
- Improved tokenizer to convert an input to a string
## 1.0.0-alpha17 (March 13, 2017)
- Implemented new concept of `syntax`
- Changed main `exports` to expose a default syntax
- Defined initial [CSS syntax](lib/syntax/default.js)
- Implemented `createSyntax()` method to create a new syntax from scratch
- Implemented `fork()` method to create a new syntax based on given via extension
- Parser
- Implemented `mediaQueryList` and `mediaQuery` parsing contexts
- Implemented `CDO` and `CDC` node types
- Implemented additional declaration property prefix hacks (`#` and `+`)
- Added support for UTF-16LE BOM
- Added support for `@font-face` at-rule
- Added `chroma()` to legacy IE filter functions
- Improved `HexColor` to consume hex only
- Improved support for `\0` and `\9` hacks (#2)
- Relaxed number check for `Ratio` terms
- Allowed fractal values as a `Ratio` term
- Disallowed zero number as a `Ratio` term
- Changed important clause parsing
- Allowed any identifier for important (to support hacks like `!ie`)
- Store `true` for `important` field in case identifier equals to `important` and string otherwise
- Fixed parse error formatted message rendering to take into account tabs
- Removed exposing of `Parser` class
- Removed `readSelectorSequence()`, `readSequenceFallback()` and `readSelectorSequenceFallback` methods
- Used single universal sequence consumer for `AtruleExpression`, `Selector` and `Value`
- Generator
- Reworked generator to use auto-generated functions based on syntax definition (additional work to be done in next releases)
- Implemented `translateMarkup(ast, before, after)` method for complex cases
- Reworked `translateWithSourceMap` to be more flexible (based on `translateMarkup`, additional work to be done in next releases)
- Walker
- Reworked walker to use auto-generated function based on syntax definition (additional work to be done in next releases)
- Lexer
- Prepared for better extensibility (additional work to be done in next releases)
- Implemented `checkStructure(ast)` method to check AST structure based on syntax definition
- Update syntax dictionaries to latest `mdn/data`
- Add missing `<'offset-position'>` syntax
- Extended `<position>` property with `-webkit-sticky` (@sergejmueller, #37)
- Improved mismatch error position
- Implemented script (`gen:syntax`) to generate AST format reference page (`docs/ast.md`) using syntax definition
## 1.0.0-alpha16 (February 12, 2017)
- Exposed `Parser` class
- Added `startOffset` option to `Tokenizer` (constructor and `setSource()` method)
- Added fallback functions for default (`readSequenceFallback`) and selector (`readSelectorSequenceFallback`) sequence readers
- Fixed edge cases for `AnPlusB`
- Fixed wrong whitespace ignoring in `Selector` consumer
## 1.0.0-alpha15 (February 8, 2017)
- Fixed broken `atruleExpression` context
- Fixed vendor prefix detection in `keyword()` and `property()`
- Fixed `property()` to not lowercase custom property names
- Added `variable` boolean flag in `property()` result
- Renamed `scanner` into `tokenizer`
- Ranamed `syntax` into `lexer`
- Moved `docs/*.html` files to [csstree/docs](https://github.com/csstree/docs) repo
- Added `element()` function for `Value` context (`-moz-element()` supported as well)
- Merged `Universal` node type into `Type`
- Renamed node types:
- `Id` -> `IdSelector`
- `Class` -> `ClassSelector`
- `Type` -> `TypeSelector`
- `Attribute` -> `AttributeSelector`
- `PseudoClass` -> `PseudoClassSelector`
- `PseudoElement` -> `PseudoElementSelector`
- `Hash` -> `HexColor`
- `Space` -> `WhiteSpace`
- `An+B` -> `AnPlusB`
- Removed `Progid` node type
- Relaxed `MediaQuery` consumer to not validate syntax on parse and to include whitespaces in children sequence as is
- Added `WhiteSpace.value` property to store whitespace sequence
- Implemented parser options to specify what should be parsed in details (when option is `false` some part of CSS represents as balanced `Raw`):
- `parseAtruleExpression` – to parse at-rule expressions (`true` by default)
- `parseSelector` – to parse rule's selector (`true` by default)
- `parseValue` - to parse declaration's value (`true` by default)
- `parseCustomProperty` – to parse value and fallback of custom property (`false` by default)
- Changed tokenization to stick leading hyphen minus to identifier token
- Changed selector parsing:
- Don't convert spaces into descendant combinator
- Don't validate selector structure on parsing (selectors may be checked by lexer later)
- Initial refactoring of [docs](https://github.com/csstree/csstree/blob/master/docs)
- Various improvements and fixes
## 1.0.0-alpha14 (February 3, 2017)
- Implemented `DeclarationList`, `MediaQueryList`, `MediaQuery`, `MediaFeature` and `Ratio` node types
- Implemented `declarationList` context (useful to parse HTML `style` attribute content)
- Implemented custom consumers for `@import`, `@media`, `@page` and `@supports` at-rules
- Implemented `atrule` option for `parse()` config, is used for `atruleExpession` context to specify custom consumer for at-rule if any
- Added `Scanner#skipWS()`, `Scanner#eatNonWS()`, `Scanner#consume()` and `Scanner#consumeNonWS()` helper methods
- Added custom consumers for known functional-pseudos, consume unknown functional-pseudo content as balanced `Raw`
- Allowed any `PseudoElement` to be a functional-pseudo (#33)
- Improved walker implementations to reduce GC thrashing by reusing cursors
- Changed `Atrule.block` to contain a `Block` node type only if any
- Changed `Block.loc` positions to include curly brackets
- Changed `Atrule.expression` to store a `null` if no expression
- Changed parser to use `StyleSheet` node type only for top level node (when context is `stylesheet`, that's by default)
- Changed `Parentheses`, `Brackets` and `Function` consumers to use passed sequence reader instead of its own
- Changed `Value` and `AtruleExpression` consumers to use common sequence reader (that reader was used by `Value` consumer before)
- Changed default sequence reader to exclude storage of spaces around `Comma`
- Changed processing of custom properties:
- Consume declaration value as balanced `Raw`
- Consume `var()` fallback value as balanced `Raw`
- Validate first argument of `var()` starts with double dash
- Custom property's value and fallback includes spaces around
- Fixed `Nth` to have a `loc` property
- Fixed `SelectorList.loc` and `Selector.loc` positions to exclude spaces
- Fixed issue Browserify build fail with `default-syntax.json` is not found error (#32, @philschatz)
- Disallowed `Type` selector starting with dash (parser throws an error in this case now)
- Disallowed empty selectors for `Rule` (not sure if it's correct but looks reasonable)
- Removed `>>` combinator support until any browser support (no signals about that yet)
- Removed `PseudoElement.legacy` property
- Removed special case for `:before`, `:after`, `:first-letter` and `:first-line` to represent them as `PseudoElement`, now those pseudos are represented as `PseudoClass` nodes
- Removed deprecated `Syntax#match()` method
- Parser was splitted into modules and related changes, one step closer to an extensible parser
- Various fixes and improvements, all changes have negligible impact on performance
## 1.0.0-alpha13 (January 19, 2017)
- Changed location storing in `SyntaxMatchError`
- Changed property to store mismatch offset to `mismatchOffset`
- Changed `offset` property to store bad node offset in source CSS if any
- Added `loc` property that stores bad node `loc` if any
## 1.0.0-alpha12 (January 19, 2017)
- Fixed `Syntax#matchProperty()` method to always return a positive result for custom properties since syntax is never defined for them (#31)
- Implemented `fromPlainObject()` and `toPlainObject()` to convert plain object to AST or AST to plain object (currently converts `List` <-> `Array`)
## 1.0.0-alpha11 (January 18, 2017)
- Added support for `:matches(<selector-list>)` (#28)
- Added support for `:has(<relative-selector-list>)`
- Added support for `::slotted(<compound-selector>)`
- Implemented `Brackets` node type
- Implemented basic support for at-rule inside rule block (#24)
- Renamed `Selector` node type to `SelectorList`
- Renamed `SimpleSelector` node type to `Selector`
- Renamed `UnicodeRange.name` property to `UnicodeRange.value`
- Replaced `Negation` node type for regular `PseudoClass`
- Unified name of node property to store nested nodes, it always `children` now:
- `StyleSheet.rules` -> `StyleSheet.children`
- `SelectorList.selectors` -> `SelectorList.children`
- `Block.declarations` -> `Block.children`
- `*.sequence` -> `*.children`
- Fixed edge cases in parsing `Hex` and `UnicodeRange` when number not an integer
- Changed `nth-` pseudos parsing
- Implemented `An+B` node type to represent expressions like `2n + 1` or `-3n`
- Fixed edge cases when `a` or `b` is not an integer
- Changed `odd` and `even` keywords processing, keywords are storing as `Identifier` node type now
- Changed `Nth` node type format to store a `nth`-query and an optional `selector`
- Implemented `of` clause for `nth-` pseudos (a.e. `:nth-child(2n + 1 of li, img)`)
- Limited `Nth` parsing rules to `:nth-child()`, `:nth-last-child()`, `:nth-of-type()` and `:nth-last-of-type()` pseudos
- Changed the way to store locations
- Renamed `info` node property to `loc`
- Changed format of `loc` to store `start` and `end` positions
## 1.0.0-alpha10 (January 11, 2017)
- Reworked `Scanner` to be a single point to its functionality
- Exposed `Scanner` class to be useful for external projects
- Changed `walk()` function behaviour to traverse AST nodes in natural order
- Implemented `walkUp()` function to traverse AST nodes from deepest to parent (behaves as `walk()` before)
## 1.0.0-alpha9 (December 21, 2016)
- Fixed `<angle>` generic according to specs that allow a `<number>` equals to zero to be used as valid value (#30)
## 1.0.0-alpha8 (November 11, 2016)
- Fixed `Scanner#skip()` issue method when cursor is moving to the end of source
- Simplified `Progid` node
- Changed behaviour for bad selector processing, now parsing fails instead of selector ignoring
- Fixed `<id-selector>` generic syntax
- Added `q` unit for `<length>` generic syntax
- Refactored syntax parser (performance)
- Reduced startup time by implementing lazy syntax parsing (default syntax doesn't parse on module load)
- Updated syntax dictionaries and used [`mdn/data`](https://github.com/mdn/data) instead of `Template:CSSData`
- Renamed `syntax.stringify()` method to `syntax.translate()`
- Simplified generic syntax functions, those functions receive a single AST node for checking and should return `true` or `false`
- Added exception for values that contains `var()`, those values are always valid for now
- Added more tests and increase code coverage to `98.5%`
## 1.0.0-alpha7 (October 7, 2016)
- Added support for explicit descendant combinator (`>>`)
- Implemented `Type` and `Universal` type nodes
- Improved `Number` parsing by including sign and exponent (#26)
- Parse `before`, `after`, `first-letter` and `first-line` pseudos with single colon as `PseudoElement`
- Changed `FunctionalPseudo` node type to `PseudoClass`
- Fixed attribute selector name parsing (namespace edge cases)
- Fixed location calculation for specified offset when `eof` is reached
- Added more non-standard colors (#25)
- Removed obsolete `Syntax#getAll()` method
- Fixed various edge cases, code clean up and performance improvements
## 1.0.0-alpha6 (September 23, 2016)
- More accurate positions for syntax mismatch errors
- Added [`apple`](https://webkit.org/blog/3709/using-the-system-font-in-web-content/) specific font keywords (#20)
- Changed `Property` node stucture from object to string
- Renamed `Ruleset` node type to `Rule`
- Removed `Argument` node type
- Fixed `Dimension` and `Percentage` position computation
- Fixed bad selector parsing (temporary solution)
- Fixed location computation for CSS with very long lines that may lead to really long parsing with `positions:true` (even freeze)
- Fixed `line` and `column` computation for `SyntaxMatch` error
- Improved performance of parsing and translation. Now CSSTree is under 10ms in [PostCSS benchmark](https://github.com/postcss/benchmark).

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Copyright (C) 2016-2019 by Roman Dvornov
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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<img align="right" width="111" height="111"
alt="CSSTree logo"
src="https://cloud.githubusercontent.com/assets/270491/19243723/6f9136c6-8f21-11e6-82ac-eeeee4c6c452.png"/>
# CSSTree
[![NPM version](https://img.shields.io/npm/v/css-tree.svg)](https://www.npmjs.com/package/css-tree)
[![Build Status](https://travis-ci.org/csstree/csstree.svg?branch=master)](https://travis-ci.org/csstree/csstree)
[![Coverage Status](https://coveralls.io/repos/github/csstree/csstree/badge.svg?branch=master)](https://coveralls.io/github/csstree/csstree?branch=master)
[![NPM Downloads](https://img.shields.io/npm/dm/css-tree.svg)](https://www.npmjs.com/package/css-tree)
[![Twitter](https://img.shields.io/badge/Twitter-@csstree-blue.svg)](https://twitter.com/csstree)
CSSTree is a tool set to work with CSS, including [fast](https://github.com/postcss/benchmark) detailed parser (string->AST), walker (AST traversal), generator (AST->string) and lexer (validation and matching) based on knowledge of spec and browser implementations. The main goal is to be efficient and W3C spec compliant, with focus on CSS analyzing and source-to-source transforming tasks.
> NOTE: The project is in alpha stage since some parts need further improvements, AST format and API are subjects to change. However it's stable enough and used by packages like [CSSO](https://github.com/css/csso) (CSS minifier) and [SVGO](https://github.com/svg/svgo) (SVG optimizer) in production.
## Features
- **Detailed parsing with an adjustable level of detail**
By default CSSTree parses CSS as detailed as possible, i.e. each single logical part is representing with its own AST node (see [AST format](docs/ast.md) for all possible node types). The parsing detail level can be changed through [parser options](docs/parsing.md#parsesource-options), for example, you can disable parsing of selectors or declaration values for component parts.
- **Tolerant to errors by design**
Parser behaves as [spec says](https://www.w3.org/TR/css-syntax-3/#error-handling): "When errors occur in CSS, the parser attempts to recover gracefully, throwing away only the minimum amount of content before returning to parsing as normal". The only thing the parser departs from the specification is that it doesn't throw away bad content, but wraps it in a special node type (`Raw`) that allows processing it later.
- **Fast and efficient**
CSSTree is created with focus on performance and effective memory consumption. Therefore it's [one of the fastest CSS parsers](https://github.com/postcss/benchmark) at the moment.
- **Syntax validation**
The build-in lexer can test CSS against syntaxes defined by W3C. CSSTree uses [mdn/data](https://github.com/mdn/data/) as a basis for lexer's dictionaries and extends it with vendor specific and legacy syntaxes. Lexer can only check the declaration values currently, but this feature will be extended to other parts of the CSS in the future.
## Docs
- [AST format](docs/ast.md)
- [Parsing CSS into AST](docs/parsing.md)
- [Generate CSS from AST](docs/generate.md)
- [AST traversal](docs/traversal.md)
- [Utils for AST](docs/utils.md)
- [Working with definition syntax](docs/definition-syntax.md)
## Tools
* [AST Explorer](https://astexplorer.net/#/gist/244e2fb4da940df52bf0f4b94277db44/e79aff44611020b22cfd9708f3a99ce09b7d67a8) – explore CSSTree AST format with zero setup
* [CSS syntax reference](https://csstree.github.io/docs/syntax.html)
* [CSS syntax validator](https://csstree.github.io/docs/validator.html)
## Related projects
* [csstree-validator](https://github.com/csstree/validator) – NPM package to validate CSS
* [stylelint-csstree-validator](https://github.com/csstree/stylelint-validator) – plugin for stylelint to validate CSS
* [Grunt plugin](https://github.com/sergejmueller/grunt-csstree-validator)
* [Gulp plugin](https://github.com/csstree/gulp-csstree)
* [Sublime plugin](https://github.com/csstree/SublimeLinter-contrib-csstree)
* [VS Code plugin](https://github.com/csstree/vscode-plugin)
* [Atom plugin](https://github.com/csstree/atom-plugin)
## Usage
Install with npm:
```
> npm install css-tree
```
Basic usage:
```js
var csstree = require('css-tree');
// parse CSS to AST
var ast = csstree.parse('.example { world: "!" }');
// traverse AST and modify it
csstree.walk(ast, function(node) {
if (node.type === 'ClassSelector' && node.name === 'example') {
node.name = 'hello';
}
});
// generate CSS from AST
console.log(csstree.generate(ast));
// .hello{world:"!"}
```
Syntax matching:
```js
// parse CSS to AST as a declaration value
var ast = csstree.parse('red 1px solid', { context: 'value' });
// march to syntax of `border` property
var matchResult = csstree.lexer.matchProperty('border', ast);
// check first value node is a <color>
console.log(matchResult.isType(ast.children.first(), 'color'));
// true
// get a type list matched to a node
console.log(matchResult.getTrace(ast.children.first()));
// [ { type: 'Property', name: 'border' },
// { type: 'Type', name: 'color' },
// { type: 'Type', name: 'named-color' },
// { type: 'Keyword', name: 'red' } ]
```
## Top level API
![API map](https://cdn.rawgit.com/csstree/csstree/master/docs/api-map.svg)
## License
MIT

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var mdnProperties = require('mdn-data/css/properties.json');
var mdnSyntaxes = require('mdn-data/css/syntaxes.json');
var patch = require('./patch.json');
function buildDictionary(dict, patchDict) {
var result = {};
// copy all syntaxes for an original dict
for (var key in dict) {
result[key] = dict[key].syntax;
}
// apply a patch
for (var key in patchDict) {
if (key in dict) {
if (patchDict[key].syntax) {
result[key] = patchDict[key].syntax;
} else {
delete result[key];
}
} else {
if (patchDict[key].syntax) {
result[key] = patchDict[key].syntax;
}
}
}
return result;
}
module.exports = {
properties: buildDictionary(mdnProperties, patch.properties),
types: buildDictionary(mdnSyntaxes, patch.syntaxes)
};

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{
"properties": {
"-moz-background-clip": {
"comment": "deprecated syntax in old Firefox, https://developer.mozilla.org/en/docs/Web/CSS/background-clip",
"syntax": "padding | border"
},
"-moz-border-radius-bottomleft": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-left-radius",
"syntax": "<'border-bottom-left-radius'>"
},
"-moz-border-radius-bottomright": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-right-radius",
"syntax": "<'border-bottom-right-radius'>"
},
"-moz-border-radius-topleft": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-top-left-radius",
"syntax": "<'border-top-left-radius'>"
},
"-moz-border-radius-topright": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/border-bottom-right-radius",
"syntax": "<'border-bottom-right-radius'>"
},
"-moz-osx-font-smoothing": {
"comment": "misssed old syntax https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth",
"syntax": "auto | grayscale"
},
"-moz-user-select": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/user-select",
"syntax": "none | text | all | -moz-none"
},
"-ms-flex-align": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-align",
"syntax": "start | end | center | baseline | stretch"
},
"-ms-flex-item-align": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-align",
"syntax": "auto | start | end | center | baseline | stretch"
},
"-ms-flex-line-pack": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-line-pack",
"syntax": "start | end | center | justify | distribute | stretch"
},
"-ms-flex-negative": {
"comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
"syntax": "<'flex-shrink'>"
},
"-ms-flex-pack": {
"comment": "misssed old syntax implemented in IE, https://www.w3.org/TR/2012/WD-css3-flexbox-20120322/#flex-pack",
"syntax": "start | end | center | justify | distribute"
},
"-ms-flex-order": {
"comment": "misssed old syntax implemented in IE; https://msdn.microsoft.com/en-us/library/jj127303(v=vs.85).aspx",
"syntax": "<integer>"
},
"-ms-flex-positive": {
"comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
"syntax": "<'flex-grow'>"
},
"-ms-flex-preferred-size": {
"comment": "misssed old syntax implemented in IE; TODO: find references for comfirmation",
"syntax": "<'flex-basis'>"
},
"-ms-interpolation-mode": {
"comment": "https://msdn.microsoft.com/en-us/library/ff521095(v=vs.85).aspx",
"syntax": "nearest-neighbor | bicubic"
},
"-ms-grid-column-align": {
"comment": "add this property first since it uses as fallback for flexbox, https://msdn.microsoft.com/en-us/library/windows/apps/hh466338.aspx",
"syntax": "start | end | center | stretch"
},
"-ms-grid-row-align": {
"comment": "add this property first since it uses as fallback for flexbox, https://msdn.microsoft.com/en-us/library/windows/apps/hh466348.aspx",
"syntax": "start | end | center | stretch"
},
"-webkit-appearance": {
"comment": "webkit specific keywords",
"references": [
"http://css-infos.net/property/-webkit-appearance"
],
"syntax": "none | button | button-bevel | caps-lock-indicator | caret | checkbox | default-button | listbox | listitem | media-fullscreen-button | media-mute-button | media-play-button | media-seek-back-button | media-seek-forward-button | media-slider | media-sliderthumb | menulist | menulist-button | menulist-text | menulist-textfield | push-button | radio | scrollbarbutton-down | scrollbarbutton-left | scrollbarbutton-right | scrollbarbutton-up | scrollbargripper-horizontal | scrollbargripper-vertical | scrollbarthumb-horizontal | scrollbarthumb-vertical | scrollbartrack-horizontal | scrollbartrack-vertical | searchfield | searchfield-cancel-button | searchfield-decoration | searchfield-results-button | searchfield-results-decoration | slider-horizontal | slider-vertical | sliderthumb-horizontal | sliderthumb-vertical | square-button | textarea | textfield"
},
"-webkit-background-clip": {
"comment": "https://developer.mozilla.org/en/docs/Web/CSS/background-clip",
"syntax": "[ <box> | border | padding | content | text ]#"
},
"-webkit-column-break-after": {
"comment": "added, http://help.dottoro.com/lcrthhhv.php",
"syntax": "always | auto | avoid"
},
"-webkit-column-break-before": {
"comment": "added, http://help.dottoro.com/lcxquvkf.php",
"syntax": "always | auto | avoid"
},
"-webkit-column-break-inside": {
"comment": "added, http://help.dottoro.com/lclhnthl.php",
"syntax": "always | auto | avoid"
},
"-webkit-font-smoothing": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/font-smooth",
"syntax": "auto | none | antialiased | subpixel-antialiased"
},
"-webkit-mask-box-image": {
"comment": "missed; https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-mask-box-image",
"syntax": "[ <url> | <gradient> | none ] [ <length-percentage>{4} <-webkit-mask-box-repeat>{2} ]?"
},
"-webkit-print-color-adjust": {
"comment": "missed",
"references": [
"https://developer.mozilla.org/en/docs/Web/CSS/-webkit-print-color-adjust"
],
"syntax": "economy | exact"
},
"-webkit-text-security": {
"comment": "missed; http://help.dottoro.com/lcbkewgt.php",
"syntax": "none | circle | disc | square"
},
"-webkit-user-drag": {
"comment": "missed; http://help.dottoro.com/lcbixvwm.php",
"syntax": "none | element | auto"
},
"-webkit-user-select": {
"comment": "auto is supported by old webkit, https://developer.mozilla.org/en-US/docs/Web/CSS/user-select",
"syntax": "auto | none | text | all"
},
"alignment-baseline": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#AlignmentBaselineProperty"
],
"syntax": "auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical"
},
"baseline-shift": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#BaselineShiftProperty"
],
"syntax": "baseline | sub | super | <svg-length>"
},
"behavior": {
"comment": "added old IE property https://msdn.microsoft.com/en-us/library/ms530723(v=vs.85).aspx",
"syntax": "<url>+"
},
"clip-rule": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/masking.html#ClipRuleProperty"
],
"syntax": "nonzero | evenodd"
},
"cue": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<'cue-before'> <'cue-after'>?"
},
"cue-after": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<url> <decibel>? | none"
},
"cue-before": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<url> <decibel>? | none"
},
"cursor": {
"comment": "added legacy keywords: hand, -webkit-grab. -webkit-grabbing, -webkit-zoom-in, -webkit-zoom-out, -moz-grab, -moz-grabbing, -moz-zoom-in, -moz-zoom-out",
"references": [
"https://www.sitepoint.com/css3-cursor-styles/"
],
"syntax": "[ [ <url> [ <x> <y> ]? , ]* [ auto | default | none | context-menu | help | pointer | progress | wait | cell | crosshair | text | vertical-text | alias | copy | move | no-drop | not-allowed | e-resize | n-resize | ne-resize | nw-resize | s-resize | se-resize | sw-resize | w-resize | ew-resize | ns-resize | nesw-resize | nwse-resize | col-resize | row-resize | all-scroll | zoom-in | zoom-out | grab | grabbing | hand | -webkit-grab | -webkit-grabbing | -webkit-zoom-in | -webkit-zoom-out | -moz-grab | -moz-grabbing | -moz-zoom-in | -moz-zoom-out ] ]"
},
"display": {
"comment": "extended with -ms-flexbox",
"syntax": "none | inline | block | list-item | inline-list-item | inline-block | inline-table | table | table-cell | table-column | table-column-group | table-footer-group | table-header-group | table-row | table-row-group | flex | inline-flex | grid | inline-grid | run-in | ruby | ruby-base | ruby-text | ruby-base-container | ruby-text-container | contents | -ms-flexbox | -ms-inline-flexbox | -ms-grid | -ms-inline-grid | -webkit-flex | -webkit-inline-flex | -webkit-box | -webkit-inline-box | -moz-inline-stack | -moz-box | -moz-inline-box"
},
"position": {
"comment": "extended with -webkit-sticky",
"syntax": "static | relative | absolute | sticky | fixed | -webkit-sticky"
},
"dominant-baseline": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#DominantBaselineProperty"
],
"syntax": "auto | use-script | no-change | reset-size | ideographic | alphabetic | hanging | mathematical | central | middle | text-after-edge | text-before-edge"
},
"image-rendering": {
"comment": "extended with <-non-standard-image-rendering>, added SVG keywords optimizeSpeed and optimizeQuality",
"references": [
"https://developer.mozilla.org/en/docs/Web/CSS/image-rendering",
"https://www.w3.org/TR/SVG/painting.html#ImageRenderingProperty"
],
"syntax": "auto | crisp-edges | pixelated | optimizeSpeed | optimizeQuality | <-non-standard-image-rendering>"
},
"fill": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#FillProperty"
],
"syntax": "<paint>"
},
"fill-opacity": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#FillProperty"
],
"syntax": "<number-zero-one>"
},
"fill-rule": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#FillProperty"
],
"syntax": "nonzero | evenodd"
},
"filter": {
"comment": "extend with IE legacy syntaxes",
"syntax": "none | <filter-function-list> | <-ms-filter-function-list>"
},
"glyph-orientation-horizontal": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#GlyphOrientationHorizontalProperty"
],
"syntax": "<angle>"
},
"glyph-orientation-vertical": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#GlyphOrientationVerticalProperty"
],
"syntax": "<angle>"
},
"kerning": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#KerningProperty"
],
"syntax": "auto | <svg-length>"
},
"letter-spacing": {
"comment": "fix syntax <length> -> <length-percentage>",
"references": [
"https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/letter-spacing"
],
"syntax": "normal | <length-percentage>"
},
"marker": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"marker-end": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"marker-mid": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"marker-start": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#MarkerProperties"
],
"syntax": "none | <url>"
},
"max-width": {
"comment": "extend by non-standard width keywords https://developer.mozilla.org/en-US/docs/Web/CSS/max-width",
"syntax": "<length> | <percentage> | none | max-content | min-content | fit-content | fill-available | <-non-standard-width>"
},
"min-width": {
"comment": "extend by non-standard width keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
"syntax": "<length> | <percentage> | auto | max-content | min-content | fit-content | fill-available | <-non-standard-width>"
},
"opacity": {
"comment": "strict to 0..1 <number> -> <number-zero-one>",
"syntax": "<number-zero-one>"
},
"overflow": {
"comment": "extend by vendor keywords https://developer.mozilla.org/en-US/docs/Web/CSS/overflow",
"syntax": "[ visible | hidden | clip | scroll | auto ]{1,2} | <-non-standard-overflow>"
},
"pause": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<'pause-before'> <'pause-after'>?"
},
"pause-after": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"pause-before": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"rest": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<'rest-before'> <'rest-after'>?"
},
"rest-after": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"rest-before": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<time> | none | x-weak | weak | medium | strong | x-strong"
},
"shape-rendering": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#ShapeRenderingPropert"
],
"syntax": "auto | optimizeSpeed | crispEdges | geometricPrecision"
},
"src": {
"comment": "added @font-face's src property https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/src",
"syntax": "[ <url> [ format( <string># ) ]? | local( <family-name> ) ]#"
},
"speak": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "auto | none | normal"
},
"speak-as": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "normal | spell-out || digits || [ literal-punctuation | no-punctuation ]"
},
"stroke": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<paint>"
},
"stroke-dasharray": {
"comment": "added SVG property; a list of comma and/or white space separated <length>s and <percentage>s",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "none | [ <svg-length>+ ]#"
},
"stroke-dashoffset": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<svg-length>"
},
"stroke-linecap": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "butt | round | square"
},
"stroke-linejoin": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "miter | round | bevel"
},
"stroke-miterlimit": {
"comment": "added SVG property (<miterlimit> = <number-one-or-greater>) ",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<number-one-or-greater>"
},
"stroke-opacity": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<number-zero-one>"
},
"stroke-width": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/painting.html#StrokeProperties"
],
"syntax": "<svg-length>"
},
"text-anchor": {
"comment": "added SVG property",
"references": [
"https://www.w3.org/TR/SVG/text.html#TextAlignmentProperties"
],
"syntax": "start | middle | end"
},
"unicode-bidi": {
"comment": "added prefixed keywords https://developer.mozilla.org/en-US/docs/Web/CSS/unicode-bidi",
"syntax": "normal | embed | isolate | bidi-override | isolate-override | plaintext | -moz-isolate | -moz-isolate-override | -moz-plaintext | -webkit-isolate"
},
"unicode-range": {
"comment": "added missed property https://developer.mozilla.org/en-US/docs/Web/CSS/%40font-face/unicode-range",
"syntax": "<urange>#"
},
"voice-balance": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<number> | left | center | right | leftwards | rightwards"
},
"voice-duration": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "auto | <time>"
},
"voice-family": {
"comment": "<name> -> <family-name>, https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "[ [ <family-name> | <generic-voice> ] , ]* [ <family-name> | <generic-voice> ] | preserve"
},
"voice-pitch": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<frequency> && absolute | [ [ x-low | low | medium | high | x-high ] || [ <frequency> | <semitones> | <percentage> ] ]"
},
"voice-range": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "<frequency> && absolute | [ [ x-low | low | medium | high | x-high ] || [ <frequency> | <semitones> | <percentage> ] ]"
},
"voice-rate": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "[ normal | x-slow | slow | medium | fast | x-fast ] || <percentage>"
},
"voice-stress": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "normal | strong | moderate | none | reduced"
},
"voice-volume": {
"comment": "https://www.w3.org/TR/css3-speech/#property-index",
"syntax": "silent | [ [ x-soft | soft | medium | loud | x-loud ] || <decibel> ]"
},
"writing-mode": {
"comment": "extend with SVG keywords",
"syntax": "horizontal-tb | vertical-rl | vertical-lr | sideways-rl | sideways-lr | <svg-writing-mode>"
}
},
"syntaxes": {
"-legacy-gradient": {
"comment": "added collection of legacy gradient syntaxes",
"syntax": "<-webkit-gradient()> | <-legacy-linear-gradient> | <-legacy-repeating-linear-gradient> | <-legacy-radial-gradient> | <-legacy-repeating-radial-gradient>"
},
"-legacy-linear-gradient": {
"comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
"syntax": "-moz-linear-gradient( <-legacy-linear-gradient-arguments> ) | -webkit-linear-gradient( <-legacy-linear-gradient-arguments> ) | -o-linear-gradient( <-legacy-linear-gradient-arguments> )"
},
"-legacy-repeating-linear-gradient": {
"comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
"syntax": "-moz-repeating-linear-gradient( <-legacy-linear-gradient-arguments> ) | -webkit-repeating-linear-gradient( <-legacy-linear-gradient-arguments> ) | -o-repeating-linear-gradient( <-legacy-linear-gradient-arguments> )"
},
"-legacy-linear-gradient-arguments": {
"comment": "like standard syntax but w/o `to` keyword https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient",
"syntax": "[ <angle> | <side-or-corner> ]? , <color-stop-list>"
},
"-legacy-radial-gradient": {
"comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
"syntax": "-moz-radial-gradient( <-legacy-radial-gradient-arguments> ) | -webkit-radial-gradient( <-legacy-radial-gradient-arguments> ) | -o-radial-gradient( <-legacy-radial-gradient-arguments> )"
},
"-legacy-repeating-radial-gradient": {
"comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
"syntax": "-moz-repeating-radial-gradient( <-legacy-radial-gradient-arguments> ) | -webkit-repeating-radial-gradient( <-legacy-radial-gradient-arguments> ) | -o-repeating-radial-gradient( <-legacy-radial-gradient-arguments> )"
},
"-legacy-radial-gradient-arguments": {
"comment": "deprecated syntax that implemented by some browsers https://www.w3.org/TR/2011/WD-css3-images-20110908/#radial-gradients",
"syntax": "[ <position> , ]? [ [ [ <-legacy-radial-gradient-shape> || <-legacy-radial-gradient-size> ] | [ <length> | <percentage> ]{2} ] , ]? <color-stop-list>"
},
"-legacy-radial-gradient-size": {
"comment": "before a standard it contains 2 extra keywords (`contain` and `cover`) https://www.w3.org/TR/2011/WD-css3-images-20110908/#ltsize",
"syntax": "closest-side | closest-corner | farthest-side | farthest-corner | contain | cover"
},
"-legacy-radial-gradient-shape": {
"comment": "define to double sure it doesn't extends in future https://www.w3.org/TR/2011/WD-css3-images-20110908/#ltshape",
"syntax": "circle | ellipse"
},
"-non-standard-font": {
"comment": "non standard fonts",
"references": [
"https://webkit.org/blog/3709/using-the-system-font-in-web-content/"
],
"syntax": "-apple-system-body | -apple-system-headline | -apple-system-subheadline | -apple-system-caption1 | -apple-system-caption2 | -apple-system-footnote | -apple-system-short-body | -apple-system-short-headline | -apple-system-short-subheadline | -apple-system-short-caption1 | -apple-system-short-footnote | -apple-system-tall-body"
},
"-non-standard-color": {
"comment": "non standard colors",
"references": [
"http://cssdot.ru/%D0%A1%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D1%87%D0%BD%D0%B8%D0%BA_CSS/color-i305.html",
"https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#Mozilla_Color_Preference_Extensions"
],
"syntax": "-moz-ButtonDefault | -moz-ButtonHoverFace | -moz-ButtonHoverText | -moz-CellHighlight | -moz-CellHighlightText | -moz-Combobox | -moz-ComboboxText | -moz-Dialog | -moz-DialogText | -moz-dragtargetzone | -moz-EvenTreeRow | -moz-Field | -moz-FieldText | -moz-html-CellHighlight | -moz-html-CellHighlightText | -moz-mac-accentdarkestshadow | -moz-mac-accentdarkshadow | -moz-mac-accentface | -moz-mac-accentlightesthighlight | -moz-mac-accentlightshadow | -moz-mac-accentregularhighlight | -moz-mac-accentregularshadow | -moz-mac-chrome-active | -moz-mac-chrome-inactive | -moz-mac-focusring | -moz-mac-menuselect | -moz-mac-menushadow | -moz-mac-menutextselect | -moz-MenuHover | -moz-MenuHoverText | -moz-MenuBarText | -moz-MenuBarHoverText | -moz-nativehyperlinktext | -moz-OddTreeRow | -moz-win-communicationstext | -moz-win-mediatext | -moz-activehyperlinktext | -moz-default-background-color | -moz-default-color | -moz-hyperlinktext | -moz-visitedhyperlinktext | -webkit-activelink | -webkit-focus-ring-color | -webkit-link | -webkit-text"
},
"-non-standard-image-rendering": {
"comment": "non-standard keywords http://phrogz.net/tmp/canvas_image_zoom.html",
"syntax": "optimize-contrast | -moz-crisp-edges | -o-crisp-edges | -webkit-optimize-contrast"
},
"-non-standard-overflow": {
"comment": "non-standard keywords https://developer.mozilla.org/en-US/docs/Web/CSS/overflow",
"syntax": "-moz-scrollbars-none | -moz-scrollbars-horizontal | -moz-scrollbars-vertical | -moz-hidden-unscrollable"
},
"-non-standard-width": {
"comment": "non-standard keywords https://developer.mozilla.org/en-US/docs/Web/CSS/width",
"syntax": "min-intrinsic | intrinsic | -moz-min-content | -moz-max-content | -webkit-min-content | -webkit-max-content"
},
"-webkit-gradient()": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/ - TODO: simplify when after match algorithm improvement ( [, point, radius | , point] -> [, radius]? , point )",
"syntax": "-webkit-gradient( <-webkit-gradient-type>, <-webkit-gradient-point> [, <-webkit-gradient-point> | , <-webkit-gradient-radius>, <-webkit-gradient-point> ] [, <-webkit-gradient-radius>]? [, <-webkit-gradient-color-stop>]* )"
},
"-webkit-gradient-color-stop": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "from( <color> ) | color-stop( [ <number-zero-one> | <percentage> ] , <color> ) | to( <color> )"
},
"-webkit-gradient-point": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "[ left | center | right | <length-percentage> ] [ top | center | bottom | <length-percentage> ]"
},
"-webkit-gradient-radius": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "<length> | <percentage>"
},
"-webkit-gradient-type": {
"comment": "first Apple proposal gradient syntax https://webkit.org/blog/175/introducing-css-gradients/",
"syntax": "linear | radial"
},
"-webkit-mask-box-repeat": {
"comment": "missed; https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-mask-box-image",
"syntax": "repeat | stretch | round"
},
"-webkit-mask-clip-style": {
"comment": "missed; there is no enough information about `-webkit-mask-clip` property, but looks like all those keywords are working",
"syntax": "border | border-box | padding | padding-box | content | content-box | text"
},
"-ms-filter-function-list": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "<-ms-filter-function>+"
},
"-ms-filter-function": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "<-ms-filter-function-progid> | <-ms-filter-function-legacy>"
},
"-ms-filter-function-progid": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "'progid:' [ <ident-token> '.' ]* [ <ident-token> | <function-token> <any-value>? ) ]"
},
"-ms-filter-function-legacy": {
"comment": "https://developer.mozilla.org/en-US/docs/Web/CSS/-ms-filter",
"syntax": "<ident-token> | <function-token> <any-value>? )"
},
"-ms-filter": {
"syntax": "<string>"
},
"age": {
"comment": "https://www.w3.org/TR/css3-speech/#voice-family",
"syntax": "child | young | old"
},
"attr-name": {
"syntax": "<wq-name>"
},
"attr-fallback": {
"syntax": "<any-value>"
},
"border-radius": {
"comment": "missed, https://drafts.csswg.org/css-backgrounds-3/#the-border-radius",
"syntax": "<length-percentage>{1,2}"
},
"bottom": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"content-list": {
"comment": "missed -> https://drafts.csswg.org/css-content/#typedef-content-list (document-url, <target> and leader() is omitted util stabilization)",
"syntax": "[ <string> | contents | <url> | <quote> | <attr()> | counter( <ident>, <'list-style-type'>? ) ]+"
},
"generic-voice": {
"comment": "https://www.w3.org/TR/css3-speech/#voice-family",
"syntax": "[ <age>? <gender> <integer>? ]"
},
"gender": {
"comment": "https://www.w3.org/TR/css3-speech/#voice-family",
"syntax": "male | female | neutral"
},
"generic-family": {
"comment": "added -apple-system",
"references": [
"https://webkit.org/blog/3709/using-the-system-font-in-web-content/"
],
"syntax": "serif | sans-serif | cursive | fantasy | monospace | -apple-system"
},
"gradient": {
"comment": "added legacy syntaxes support",
"syntax": "<linear-gradient()> | <repeating-linear-gradient()> | <radial-gradient()> | <repeating-radial-gradient()> | <conic-gradient()> | <-legacy-gradient>"
},
"left": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"mask-image": {
"comment": "missed; https://drafts.fxtf.org/css-masking-1/#the-mask-image",
"syntax": "<mask-reference>#"
},
"name-repeat": {
"comment": "missed, and looks like obsolete, keep it as is since other property syntaxes should be changed too; https://www.w3.org/TR/2015/WD-css-grid-1-20150917/#typedef-name-repeat",
"syntax": "repeat( [ <positive-integer> | auto-fill ], <line-names>+)"
},
"named-color": {
"comment": "added non standard color names",
"syntax": "transparent | aliceblue | antiquewhite | aqua | aquamarine | azure | beige | bisque | black | blanchedalmond | blue | blueviolet | brown | burlywood | cadetblue | chartreuse | chocolate | coral | cornflowerblue | cornsilk | crimson | cyan | darkblue | darkcyan | darkgoldenrod | darkgray | darkgreen | darkgrey | darkkhaki | darkmagenta | darkolivegreen | darkorange | darkorchid | darkred | darksalmon | darkseagreen | darkslateblue | darkslategray | darkslategrey | darkturquoise | darkviolet | deeppink | deepskyblue | dimgray | dimgrey | dodgerblue | firebrick | floralwhite | forestgreen | fuchsia | gainsboro | ghostwhite | gold | goldenrod | gray | green | greenyellow | grey | honeydew | hotpink | indianred | indigo | ivory | khaki | lavender | lavenderblush | lawngreen | lemonchiffon | lightblue | lightcoral | lightcyan | lightgoldenrodyellow | lightgray | lightgreen | lightgrey | lightpink | lightsalmon | lightseagreen | lightskyblue | lightslategray | lightslategrey | lightsteelblue | lightyellow | lime | limegreen | linen | magenta | maroon | mediumaquamarine | mediumblue | mediumorchid | mediumpurple | mediumseagreen | mediumslateblue | mediumspringgreen | mediumturquoise | mediumvioletred | midnightblue | mintcream | mistyrose | moccasin | navajowhite | navy | oldlace | olive | olivedrab | orange | orangered | orchid | palegoldenrod | palegreen | paleturquoise | palevioletred | papayawhip | peachpuff | peru | pink | plum | powderblue | purple | rebeccapurple | red | rosybrown | royalblue | saddlebrown | salmon | sandybrown | seagreen | seashell | sienna | silver | skyblue | slateblue | slategray | slategrey | snow | springgreen | steelblue | tan | teal | thistle | tomato | turquoise | violet | wheat | white | whitesmoke | yellow | yellowgreen | <-non-standard-color>"
},
"paint": {
"comment": "used by SVG https://www.w3.org/TR/SVG/painting.html#SpecifyingPaint",
"syntax": "none | <color> | <url> [ none | <color> ]? | context-fill | context-stroke"
},
"path()": {
"comment": "missed, `motion` property was renamed, but left it as is for now; path() syntax was get from last draft https://drafts.fxtf.org/motion-1/#funcdef-offset-path-path",
"syntax": "path( <string> )"
},
"ratio": {
"comment": "missed, https://drafts.csswg.org/mediaqueries-4/#typedef-ratio",
"syntax": "<integer> / <integer>"
},
"right": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"shape": {
"comment": "missed spaces in function body and add backwards compatible syntax",
"syntax": "rect( <top>, <right>, <bottom>, <left> ) | rect( <top> <right> <bottom> <left> )"
},
"svg-length": {
"comment": "All coordinates and lengths in SVG can be specified with or without a unit identifier",
"references": [
"https://www.w3.org/TR/SVG11/coords.html#Units"
],
"syntax": "<percentage> | <length> | <number>"
},
"svg-writing-mode": {
"comment": "SVG specific keywords (deprecated for CSS)",
"references": [
"https://developer.mozilla.org/en/docs/Web/CSS/writing-mode",
"https://www.w3.org/TR/SVG/text.html#WritingModeProperty"
],
"syntax": "lr-tb | rl-tb | tb-rl | lr | rl | tb"
},
"top": {
"comment": "missed; not sure we should add it, but no others except `shape` is using it so it's ok for now; https://drafts.fxtf.org/css-masking-1/#funcdef-clip-rect",
"syntax": "<length> | auto"
},
"x": {
"comment": "missed; not sure we should add it, but no others except `cursor` is using it so it's ok for now; https://drafts.csswg.org/css-ui-3/#cursor",
"syntax": "<number>"
},
"y": {
"comment": "missed; not sure we should add it, but no others except `cursor` is using so it's ok for now; https://drafts.csswg.org/css-ui-3/#cursor",
"syntax": "<number>"
},
"declaration": {
"comment": "missed, restored by https://drafts.csswg.org/css-syntax",
"syntax": "<ident-token> : <declaration-value>? [ '!' important ]?"
},
"declaration-list": {
"comment": "missed, restored by https://drafts.csswg.org/css-syntax",
"syntax": "[ <declaration>? ';' ]* <declaration>?"
},
"url": {
"comment": "https://drafts.csswg.org/css-values-4/#urls",
"syntax": "url( <string> <url-modifier>* ) | <url-token>"
},
"url-modifier": {
"comment": "https://drafts.csswg.org/css-values-4/#typedef-url-modifier",
"syntax": "<ident> | <function-token> <any-value> )"
},
"number-zero-one": {
"syntax": "<number [0,1]>"
},
"number-one-or-greater": {
"syntax": "<number [1,∞]>"
},
"positive-integer": {
"syntax": "<integer [0,∞]>"
}
}
}

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//
// list
// ┌──────┐
// ┌──────────────┼─head │
// │ │ tail─┼──────────────┐
// │ └──────┘ │
// ▼ ▼
// item item item item
// ┌──────┐ ┌──────┐ ┌──────┐ ┌──────┐
// null ◀──┼─prev │◀───┼─prev │◀───┼─prev │◀───┼─prev │
// │ next─┼───▶│ next─┼───▶│ next─┼───▶│ next─┼──▶ null
// ├──────┤ ├──────┤ ├──────┤ ├──────┤
// │ data │ │ data │ │ data │ │ data │
// └──────┘ └──────┘ └──────┘ └──────┘
//
function createItem(data) {
return {
prev: null,
next: null,
data: data
};
}
function allocateCursor(node, prev, next) {
var cursor;
if (cursors !== null) {
cursor = cursors;
cursors = cursors.cursor;
cursor.prev = prev;
cursor.next = next;
cursor.cursor = node.cursor;
} else {
cursor = {
prev: prev,
next: next,
cursor: node.cursor
};
}
node.cursor = cursor;
return cursor;
}
function releaseCursor(node) {
var cursor = node.cursor;
node.cursor = cursor.cursor;
cursor.prev = null;
cursor.next = null;
cursor.cursor = cursors;
cursors = cursor;
}
var cursors = null;
var List = function() {
this.cursor = null;
this.head = null;
this.tail = null;
};
List.createItem = createItem;
List.prototype.createItem = createItem;
List.prototype.updateCursors = function(prevOld, prevNew, nextOld, nextNew) {
var cursor = this.cursor;
while (cursor !== null) {
if (cursor.prev === prevOld) {
cursor.prev = prevNew;
}
if (cursor.next === nextOld) {
cursor.next = nextNew;
}
cursor = cursor.cursor;
}
};
List.prototype.getSize = function() {
var size = 0;
var cursor = this.head;
while (cursor) {
size++;
cursor = cursor.next;
}
return size;
};
List.prototype.fromArray = function(array) {
var cursor = null;
this.head = null;
for (var i = 0; i < array.length; i++) {
var item = createItem(array[i]);
if (cursor !== null) {
cursor.next = item;
} else {
this.head = item;
}
item.prev = cursor;
cursor = item;
}
this.tail = cursor;
return this;
};
List.prototype.toArray = function() {
var cursor = this.head;
var result = [];
while (cursor) {
result.push(cursor.data);
cursor = cursor.next;
}
return result;
};
List.prototype.toJSON = List.prototype.toArray;
List.prototype.isEmpty = function() {
return this.head === null;
};
List.prototype.first = function() {
return this.head && this.head.data;
};
List.prototype.last = function() {
return this.tail && this.tail.data;
};
List.prototype.each = function(fn, context) {
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, null, this.head);
while (cursor.next !== null) {
item = cursor.next;
cursor.next = item.next;
fn.call(context, item.data, item, this);
}
// pop cursor
releaseCursor(this);
};
List.prototype.forEach = List.prototype.each;
List.prototype.eachRight = function(fn, context) {
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, this.tail, null);
while (cursor.prev !== null) {
item = cursor.prev;
cursor.prev = item.prev;
fn.call(context, item.data, item, this);
}
// pop cursor
releaseCursor(this);
};
List.prototype.forEachRight = List.prototype.eachRight;
List.prototype.nextUntil = function(start, fn, context) {
if (start === null) {
return;
}
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, null, start);
while (cursor.next !== null) {
item = cursor.next;
cursor.next = item.next;
if (fn.call(context, item.data, item, this)) {
break;
}
}
// pop cursor
releaseCursor(this);
};
List.prototype.prevUntil = function(start, fn, context) {
if (start === null) {
return;
}
var item;
if (context === undefined) {
context = this;
}
// push cursor
var cursor = allocateCursor(this, start, null);
while (cursor.prev !== null) {
item = cursor.prev;
cursor.prev = item.prev;
if (fn.call(context, item.data, item, this)) {
break;
}
}
// pop cursor
releaseCursor(this);
};
List.prototype.some = function(fn, context) {
var cursor = this.head;
if (context === undefined) {
context = this;
}
while (cursor !== null) {
if (fn.call(context, cursor.data, cursor, this)) {
return true;
}
cursor = cursor.next;
}
return false;
};
List.prototype.map = function(fn, context) {
var result = new List();
var cursor = this.head;
if (context === undefined) {
context = this;
}
while (cursor !== null) {
result.appendData(fn.call(context, cursor.data, cursor, this));
cursor = cursor.next;
}
return result;
};
List.prototype.filter = function(fn, context) {
var result = new List();
var cursor = this.head;
if (context === undefined) {
context = this;
}
while (cursor !== null) {
if (fn.call(context, cursor.data, cursor, this)) {
result.appendData(cursor.data);
}
cursor = cursor.next;
}
return result;
};
List.prototype.clear = function() {
this.head = null;
this.tail = null;
};
List.prototype.copy = function() {
var result = new List();
var cursor = this.head;
while (cursor !== null) {
result.insert(createItem(cursor.data));
cursor = cursor.next;
}
return result;
};
List.prototype.prepend = function(item) {
// head
// ^
// item
this.updateCursors(null, item, this.head, item);
// insert to the beginning of the list
if (this.head !== null) {
// new item <- first item
this.head.prev = item;
// new item -> first item
item.next = this.head;
} else {
// if list has no head, then it also has no tail
// in this case tail points to the new item
this.tail = item;
}
// head always points to new item
this.head = item;
return this;
};
List.prototype.prependData = function(data) {
return this.prepend(createItem(data));
};
List.prototype.append = function(item) {
return this.insert(item);
};
List.prototype.appendData = function(data) {
return this.insert(createItem(data));
};
List.prototype.insert = function(item, before) {
if (before !== undefined && before !== null) {
// prev before
// ^
// item
this.updateCursors(before.prev, item, before, item);
if (before.prev === null) {
// insert to the beginning of list
if (this.head !== before) {
throw new Error('before doesn\'t belong to list');
}
// since head points to before therefore list doesn't empty
// no need to check tail
this.head = item;
before.prev = item;
item.next = before;
this.updateCursors(null, item);
} else {
// insert between two items
before.prev.next = item;
item.prev = before.prev;
before.prev = item;
item.next = before;
}
} else {
// tail
// ^
// item
this.updateCursors(this.tail, item, null, item);
// insert to the ending of the list
if (this.tail !== null) {
// last item -> new item
this.tail.next = item;
// last item <- new item
item.prev = this.tail;
} else {
// if list has no tail, then it also has no head
// in this case head points to new item
this.head = item;
}
// tail always points to new item
this.tail = item;
}
return this;
};
List.prototype.insertData = function(data, before) {
return this.insert(createItem(data), before);
};
List.prototype.remove = function(item) {
// item
// ^
// prev next
this.updateCursors(item, item.prev, item, item.next);
if (item.prev !== null) {
item.prev.next = item.next;
} else {
if (this.head !== item) {
throw new Error('item doesn\'t belong to list');
}
this.head = item.next;
}
if (item.next !== null) {
item.next.prev = item.prev;
} else {
if (this.tail !== item) {
throw new Error('item doesn\'t belong to list');
}
this.tail = item.prev;
}
item.prev = null;
item.next = null;
return item;
};
List.prototype.push = function(data) {
this.insert(createItem(data));
};
List.prototype.pop = function() {
if (this.tail !== null) {
return this.remove(this.tail);
}
};
List.prototype.unshift = function(data) {
this.prepend(createItem(data));
};
List.prototype.shift = function() {
if (this.head !== null) {
return this.remove(this.head);
}
};
List.prototype.prependList = function(list) {
return this.insertList(list, this.head);
};
List.prototype.appendList = function(list) {
return this.insertList(list);
};
List.prototype.insertList = function(list, before) {
// ignore empty lists
if (list.head === null) {
return this;
}
if (before !== undefined && before !== null) {
this.updateCursors(before.prev, list.tail, before, list.head);
// insert in the middle of dist list
if (before.prev !== null) {
// before.prev <-> list.head
before.prev.next = list.head;
list.head.prev = before.prev;
} else {
this.head = list.head;
}
before.prev = list.tail;
list.tail.next = before;
} else {
this.updateCursors(this.tail, list.tail, null, list.head);
// insert to end of the list
if (this.tail !== null) {
// if destination list has a tail, then it also has a head,
// but head doesn't change
// dest tail -> source head
this.tail.next = list.head;
// dest tail <- source head
list.head.prev = this.tail;
} else {
// if list has no a tail, then it also has no a head
// in this case points head to new item
this.head = list.head;
}
// tail always start point to new item
this.tail = list.tail;
}
list.head = null;
list.tail = null;
return this;
};
List.prototype.replace = function(oldItem, newItemOrList) {
if ('head' in newItemOrList) {
this.insertList(newItemOrList, oldItem);
} else {
this.insert(newItemOrList, oldItem);
}
this.remove(oldItem);
};
module.exports = List;

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var adoptBuffer = require('./adopt-buffer');
var isBOM = require('../tokenizer').isBOM;
var N = 10;
var F = 12;
var R = 13;
function computeLinesAndColumns(host, source) {
var sourceLength = source.length;
var lines = adoptBuffer(host.lines, sourceLength); // +1
var line = host.startLine;
var columns = adoptBuffer(host.columns, sourceLength);
var column = host.startColumn;
var startOffset = source.length > 0 ? isBOM(source.charCodeAt(0)) : 0;
for (var i = startOffset; i < sourceLength; i++) { // -1
var code = source.charCodeAt(i);
lines[i] = line;
columns[i] = column++;
if (code === N || code === R || code === F) {
if (code === R && i + 1 < sourceLength && source.charCodeAt(i + 1) === N) {
i++;
lines[i] = line;
columns[i] = column;
}
line++;
column = 1;
}
}
lines[i] = line;
columns[i] = column;
host.lines = lines;
host.columns = columns;
}
var OffsetToLocation = function() {
this.lines = null;
this.columns = null;
this.linesAndColumnsComputed = false;
};
OffsetToLocation.prototype = {
setSource: function(source, startOffset, startLine, startColumn) {
this.source = source;
this.startOffset = typeof startOffset === 'undefined' ? 0 : startOffset;
this.startLine = typeof startLine === 'undefined' ? 1 : startLine;
this.startColumn = typeof startColumn === 'undefined' ? 1 : startColumn;
this.linesAndColumnsComputed = false;
},
ensureLinesAndColumnsComputed: function() {
if (!this.linesAndColumnsComputed) {
computeLinesAndColumns(this, this.source);
this.linesAndColumnsComputed = true;
}
},
getLocation: function(offset, filename) {
this.ensureLinesAndColumnsComputed();
return {
source: filename,
offset: this.startOffset + offset,
line: this.lines[offset],
column: this.columns[offset]
};
},
getLocationRange: function(start, end, filename) {
this.ensureLinesAndColumnsComputed();
return {
source: filename,
start: {
offset: this.startOffset + start,
line: this.lines[start],
column: this.columns[start]
},
end: {
offset: this.startOffset + end,
line: this.lines[end],
column: this.columns[end]
}
};
}
};
module.exports = OffsetToLocation;

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assets_old/node_modules/css-tree/lib/common/SyntaxError.js generated vendored Normal file
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var createCustomError = require('../utils/createCustomError');
var MAX_LINE_LENGTH = 100;
var OFFSET_CORRECTION = 60;
var TAB_REPLACEMENT = ' ';
function sourceFragment(error, extraLines) {
function processLines(start, end) {
return lines.slice(start, end).map(function(line, idx) {
var num = String(start + idx + 1);
while (num.length < maxNumLength) {
num = ' ' + num;
}
return num + ' |' + line;
}).join('\n');
}
var lines = error.source.split(/\r\n?|\n|\f/);
var line = error.line;
var column = error.column;
var startLine = Math.max(1, line - extraLines) - 1;
var endLine = Math.min(line + extraLines, lines.length + 1);
var maxNumLength = Math.max(4, String(endLine).length) + 1;
var cutLeft = 0;
// column correction according to replaced tab before column
column += (TAB_REPLACEMENT.length - 1) * (lines[line - 1].substr(0, column - 1).match(/\t/g) || []).length;
if (column > MAX_LINE_LENGTH) {
cutLeft = column - OFFSET_CORRECTION + 3;
column = OFFSET_CORRECTION - 2;
}
for (var i = startLine; i <= endLine; i++) {
if (i >= 0 && i < lines.length) {
lines[i] = lines[i].replace(/\t/g, TAB_REPLACEMENT);
lines[i] =
(cutLeft > 0 && lines[i].length > cutLeft ? '\u2026' : '') +
lines[i].substr(cutLeft, MAX_LINE_LENGTH - 2) +
(lines[i].length > cutLeft + MAX_LINE_LENGTH - 1 ? '\u2026' : '');
}
}
return [
processLines(startLine, line),
new Array(column + maxNumLength + 2).join('-') + '^',
processLines(line, endLine)
].filter(Boolean).join('\n');
}
var SyntaxError = function(message, source, offset, line, column) {
var error = createCustomError('SyntaxError', message);
error.source = source;
error.offset = offset;
error.line = line;
error.column = column;
error.sourceFragment = function(extraLines) {
return sourceFragment(error, isNaN(extraLines) ? 0 : extraLines);
};
Object.defineProperty(error, 'formattedMessage', {
get: function() {
return (
'Parse error: ' + error.message + '\n' +
sourceFragment(error, 2)
);
}
});
// for backward capability
error.parseError = {
offset: offset,
line: line,
column: column
};
return error;
};
module.exports = SyntaxError;

209
assets_old/node_modules/css-tree/lib/common/TokenStream.js generated vendored Normal file
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var constants = require('../tokenizer/const');
var TYPE = constants.TYPE;
var NAME = constants.NAME;
var utils = require('../tokenizer/utils');
var cmpStr = utils.cmpStr;
var EOF = TYPE.EOF;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var OFFSET_MASK = 0x00FFFFFF;
var TYPE_SHIFT = 24;
var TokenStream = function() {
this.offsetAndType = null;
this.balance = null;
this.reset();
};
TokenStream.prototype = {
reset: function() {
this.eof = false;
this.tokenIndex = -1;
this.tokenType = 0;
this.tokenStart = this.firstCharOffset;
this.tokenEnd = this.firstCharOffset;
},
lookupType: function(offset) {
offset += this.tokenIndex;
if (offset < this.tokenCount) {
return this.offsetAndType[offset] >> TYPE_SHIFT;
}
return EOF;
},
lookupOffset: function(offset) {
offset += this.tokenIndex;
if (offset < this.tokenCount) {
return this.offsetAndType[offset - 1] & OFFSET_MASK;
}
return this.source.length;
},
lookupValue: function(offset, referenceStr) {
offset += this.tokenIndex;
if (offset < this.tokenCount) {
return cmpStr(
this.source,
this.offsetAndType[offset - 1] & OFFSET_MASK,
this.offsetAndType[offset] & OFFSET_MASK,
referenceStr
);
}
return false;
},
getTokenStart: function(tokenIndex) {
if (tokenIndex === this.tokenIndex) {
return this.tokenStart;
}
if (tokenIndex > 0) {
return tokenIndex < this.tokenCount
? this.offsetAndType[tokenIndex - 1] & OFFSET_MASK
: this.offsetAndType[this.tokenCount] & OFFSET_MASK;
}
return this.firstCharOffset;
},
// TODO: -> skipUntilBalanced
getRawLength: function(startToken, mode) {
var cursor = startToken;
var balanceEnd;
var offset = this.offsetAndType[Math.max(cursor - 1, 0)] & OFFSET_MASK;
var type;
loop:
for (; cursor < this.tokenCount; cursor++) {
balanceEnd = this.balance[cursor];
// stop scanning on balance edge that points to offset before start token
if (balanceEnd < startToken) {
break loop;
}
type = this.offsetAndType[cursor] >> TYPE_SHIFT;
// check token is stop type
switch (mode(type, this.source, offset)) {
case 1:
break loop;
case 2:
cursor++;
break loop;
default:
offset = this.offsetAndType[cursor] & OFFSET_MASK;
// fast forward to the end of balanced block
if (this.balance[balanceEnd] === cursor) {
cursor = balanceEnd;
}
}
}
return cursor - this.tokenIndex;
},
isBalanceEdge: function(pos) {
return this.balance[this.tokenIndex] < pos;
},
isDelim: function(code, offset) {
if (offset) {
return (
this.lookupType(offset) === TYPE.Delim &&
this.source.charCodeAt(this.lookupOffset(offset)) === code
);
}
return (
this.tokenType === TYPE.Delim &&
this.source.charCodeAt(this.tokenStart) === code
);
},
getTokenValue: function() {
return this.source.substring(this.tokenStart, this.tokenEnd);
},
getTokenLength: function() {
return this.tokenEnd - this.tokenStart;
},
substrToCursor: function(start) {
return this.source.substring(start, this.tokenStart);
},
skipWS: function() {
for (var i = this.tokenIndex, skipTokenCount = 0; i < this.tokenCount; i++, skipTokenCount++) {
if ((this.offsetAndType[i] >> TYPE_SHIFT) !== WHITESPACE) {
break;
}
}
if (skipTokenCount > 0) {
this.skip(skipTokenCount);
}
},
skipSC: function() {
while (this.tokenType === WHITESPACE || this.tokenType === COMMENT) {
this.next();
}
},
skip: function(tokenCount) {
var next = this.tokenIndex + tokenCount;
if (next < this.tokenCount) {
this.tokenIndex = next;
this.tokenStart = this.offsetAndType[next - 1] & OFFSET_MASK;
next = this.offsetAndType[next];
this.tokenType = next >> TYPE_SHIFT;
this.tokenEnd = next & OFFSET_MASK;
} else {
this.tokenIndex = this.tokenCount;
this.next();
}
},
next: function() {
var next = this.tokenIndex + 1;
if (next < this.tokenCount) {
this.tokenIndex = next;
this.tokenStart = this.tokenEnd;
next = this.offsetAndType[next];
this.tokenType = next >> TYPE_SHIFT;
this.tokenEnd = next & OFFSET_MASK;
} else {
this.tokenIndex = this.tokenCount;
this.eof = true;
this.tokenType = EOF;
this.tokenStart = this.tokenEnd = this.source.length;
}
},
dump: function() {
var offset = this.firstCharOffset;
return Array.prototype.slice.call(this.offsetAndType, 0, this.tokenCount).map(function(item, idx) {
var start = offset;
var end = item & OFFSET_MASK;
offset = end;
return {
idx: idx,
type: NAME[item >> TYPE_SHIFT],
chunk: this.source.substring(start, end),
balance: this.balance[idx]
};
}, this);
}
};
module.exports = TokenStream;

10
assets_old/node_modules/css-tree/lib/common/adopt-buffer.js generated vendored Normal file
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var MIN_SIZE = 16 * 1024;
var SafeUint32Array = typeof Uint32Array !== 'undefined' ? Uint32Array : Array; // fallback on Array when TypedArray is not supported
module.exports = function adoptBuffer(buffer, size) {
if (buffer === null || buffer.length < size) {
return new SafeUint32Array(Math.max(size + 1024, MIN_SIZE));
}
return buffer;
};

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assets_old/node_modules/css-tree/lib/convertor/create.js generated vendored Normal file
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var List = require('../common/List');
module.exports = function createConvertors(walk) {
return {
fromPlainObject: function(ast) {
walk(ast, {
enter: function(node) {
if (node.children && node.children instanceof List === false) {
node.children = new List().fromArray(node.children);
}
}
});
return ast;
},
toPlainObject: function(ast) {
walk(ast, {
leave: function(node) {
if (node.children && node.children instanceof List) {
node.children = node.children.toArray();
}
}
});
return ast;
}
};
};

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assets_old/node_modules/css-tree/lib/convertor/index.js generated vendored Normal file
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var createConvertor = require('./create');
module.exports = createConvertor(require('../walker'));

14
assets_old/node_modules/css-tree/lib/definition-syntax/SyntaxError.js generated vendored Normal file
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var createCustomError = require('../utils/createCustomError');
module.exports = function SyntaxError(message, input, offset) {
var error = createCustomError('SyntaxError', message);
error.input = input;
error.offset = offset;
error.rawMessage = message;
error.message = error.rawMessage + '\n' +
' ' + error.input + '\n' +
'--' + new Array((error.offset || error.input.length) + 1).join('-') + '^';
return error;
};

129
assets_old/node_modules/css-tree/lib/definition-syntax/generate.js generated vendored Normal file
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function noop(value) {
return value;
}
function generateMultiplier(multiplier) {
if (multiplier.min === 0 && multiplier.max === 0) {
return '*';
}
if (multiplier.min === 0 && multiplier.max === 1) {
return '?';
}
if (multiplier.min === 1 && multiplier.max === 0) {
return multiplier.comma ? '#' : '+';
}
if (multiplier.min === 1 && multiplier.max === 1) {
return '';
}
return (
(multiplier.comma ? '#' : '') +
(multiplier.min === multiplier.max
? '{' + multiplier.min + '}'
: '{' + multiplier.min + ',' + (multiplier.max !== 0 ? multiplier.max : '') + '}'
)
);
}
function generateTypeOpts(node) {
switch (node.type) {
case 'Range':
return (
' [' +
(node.min === null ? '-∞' : node.min) +
',' +
(node.max === null ? '∞' : node.max) +
']'
);
default:
throw new Error('Unknown node type `' + node.type + '`');
}
}
function generateSequence(node, decorate, forceBraces, compact) {
var combinator = node.combinator === ' ' || compact ? node.combinator : ' ' + node.combinator + ' ';
var result = node.terms.map(function(term) {
return generate(term, decorate, forceBraces, compact);
}).join(combinator);
if (node.explicit || forceBraces) {
result = (compact || result[0] === ',' ? '[' : '[ ') + result + (compact ? ']' : ' ]');
}
return result;
}
function generate(node, decorate, forceBraces, compact) {
var result;
switch (node.type) {
case 'Group':
result =
generateSequence(node, decorate, forceBraces, compact) +
(node.disallowEmpty ? '!' : '');
break;
case 'Multiplier':
// return since node is a composition
return (
generate(node.term, decorate, forceBraces, compact) +
decorate(generateMultiplier(node), node)
);
case 'Type':
result = '<' + node.name + (node.opts ? decorate(generateTypeOpts(node.opts), node.opts) : '') + '>';
break;
case 'Property':
result = '<\'' + node.name + '\'>';
break;
case 'Keyword':
result = node.name;
break;
case 'AtKeyword':
result = '@' + node.name;
break;
case 'Function':
result = node.name + '(';
break;
case 'String':
case 'Token':
result = node.value;
break;
case 'Comma':
result = ',';
break;
default:
throw new Error('Unknown node type `' + node.type + '`');
}
return decorate(result, node);
}
module.exports = function(node, options) {
var decorate = noop;
var forceBraces = false;
var compact = false;
if (typeof options === 'function') {
decorate = options;
} else if (options) {
forceBraces = Boolean(options.forceBraces);
compact = Boolean(options.compact);
if (typeof options.decorate === 'function') {
decorate = options.decorate;
}
}
return generate(node, decorate, forceBraces, compact);
};

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module.exports = {
SyntaxError: require('./SyntaxError'),
parse: require('./parse'),
generate: require('./generate'),
walk: require('./walk')
};

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var Tokenizer = require('./tokenizer');
var TAB = 9;
var N = 10;
var F = 12;
var R = 13;
var SPACE = 32;
var EXCLAMATIONMARK = 33; // !
var NUMBERSIGN = 35; // #
var AMPERSAND = 38; // &
var APOSTROPHE = 39; // '
var LEFTPARENTHESIS = 40; // (
var RIGHTPARENTHESIS = 41; // )
var ASTERISK = 42; // *
var PLUSSIGN = 43; // +
var COMMA = 44; // ,
var HYPERMINUS = 45; // -
var LESSTHANSIGN = 60; // <
var GREATERTHANSIGN = 62; // >
var QUESTIONMARK = 63; // ?
var COMMERCIALAT = 64; // @
var LEFTSQUAREBRACKET = 91; // [
var RIGHTSQUAREBRACKET = 93; // ]
var LEFTCURLYBRACKET = 123; // {
var VERTICALLINE = 124; // |
var RIGHTCURLYBRACKET = 125; // }
var INFINITY = 8734; // ∞
var NAME_CHAR = createCharMap(function(ch) {
return /[a-zA-Z0-9\-]/.test(ch);
});
var COMBINATOR_PRECEDENCE = {
' ': 1,
'&&': 2,
'||': 3,
'|': 4
};
function createCharMap(fn) {
var array = typeof Uint32Array === 'function' ? new Uint32Array(128) : new Array(128);
for (var i = 0; i < 128; i++) {
array[i] = fn(String.fromCharCode(i)) ? 1 : 0;
}
return array;
}
function scanSpaces(tokenizer) {
return tokenizer.substringToPos(
tokenizer.findWsEnd(tokenizer.pos)
);
}
function scanWord(tokenizer) {
var end = tokenizer.pos;
for (; end < tokenizer.str.length; end++) {
var code = tokenizer.str.charCodeAt(end);
if (code >= 128 || NAME_CHAR[code] === 0) {
break;
}
}
if (tokenizer.pos === end) {
tokenizer.error('Expect a keyword');
}
return tokenizer.substringToPos(end);
}
function scanNumber(tokenizer) {
var end = tokenizer.pos;
for (; end < tokenizer.str.length; end++) {
var code = tokenizer.str.charCodeAt(end);
if (code < 48 || code > 57) {
break;
}
}
if (tokenizer.pos === end) {
tokenizer.error('Expect a number');
}
return tokenizer.substringToPos(end);
}
function scanString(tokenizer) {
var end = tokenizer.str.indexOf('\'', tokenizer.pos + 1);
if (end === -1) {
tokenizer.pos = tokenizer.str.length;
tokenizer.error('Expect an apostrophe');
}
return tokenizer.substringToPos(end + 1);
}
function readMultiplierRange(tokenizer) {
var min = null;
var max = null;
tokenizer.eat(LEFTCURLYBRACKET);
min = scanNumber(tokenizer);
if (tokenizer.charCode() === COMMA) {
tokenizer.pos++;
if (tokenizer.charCode() !== RIGHTCURLYBRACKET) {
max = scanNumber(tokenizer);
}
} else {
max = min;
}
tokenizer.eat(RIGHTCURLYBRACKET);
return {
min: Number(min),
max: max ? Number(max) : 0
};
}
function readMultiplier(tokenizer) {
var range = null;
var comma = false;
switch (tokenizer.charCode()) {
case ASTERISK:
tokenizer.pos++;
range = {
min: 0,
max: 0
};
break;
case PLUSSIGN:
tokenizer.pos++;
range = {
min: 1,
max: 0
};
break;
case QUESTIONMARK:
tokenizer.pos++;
range = {
min: 0,
max: 1
};
break;
case NUMBERSIGN:
tokenizer.pos++;
comma = true;
if (tokenizer.charCode() === LEFTCURLYBRACKET) {
range = readMultiplierRange(tokenizer);
} else {
range = {
min: 1,
max: 0
};
}
break;
case LEFTCURLYBRACKET:
range = readMultiplierRange(tokenizer);
break;
default:
return null;
}
return {
type: 'Multiplier',
comma: comma,
min: range.min,
max: range.max,
term: null
};
}
function maybeMultiplied(tokenizer, node) {
var multiplier = readMultiplier(tokenizer);
if (multiplier !== null) {
multiplier.term = node;
return multiplier;
}
return node;
}
function maybeToken(tokenizer) {
var ch = tokenizer.peek();
if (ch === '') {
return null;
}
return {
type: 'Token',
value: ch
};
}
function readProperty(tokenizer) {
var name;
tokenizer.eat(LESSTHANSIGN);
tokenizer.eat(APOSTROPHE);
name = scanWord(tokenizer);
tokenizer.eat(APOSTROPHE);
tokenizer.eat(GREATERTHANSIGN);
return maybeMultiplied(tokenizer, {
type: 'Property',
name: name
});
}
// https://drafts.csswg.org/css-values-3/#numeric-ranges
// 4.1. Range Restrictions and Range Definition Notation
//
// Range restrictions can be annotated in the numeric type notation using CSS bracketed
// range notation—[min,max]—within the angle brackets, after the identifying keyword,
// indicating a closed range between (and including) min and max.
// For example, <integer [0, 10]> indicates an integer between 0 and 10, inclusive.
function readTypeRange(tokenizer) {
// use null for Infinity to make AST format JSON serializable/deserializable
var min = null; // -Infinity
var max = null; // Infinity
var sign = 1;
tokenizer.eat(LEFTSQUAREBRACKET);
if (tokenizer.charCode() === HYPERMINUS) {
tokenizer.peek();
sign = -1;
}
if (sign == -1 && tokenizer.charCode() === INFINITY) {
tokenizer.peek();
} else {
min = sign * Number(scanNumber(tokenizer));
}
scanSpaces(tokenizer);
tokenizer.eat(COMMA);
scanSpaces(tokenizer);
if (tokenizer.charCode() === INFINITY) {
tokenizer.peek();
} else {
sign = 1;
if (tokenizer.charCode() === HYPERMINUS) {
tokenizer.peek();
sign = -1;
}
max = sign * Number(scanNumber(tokenizer));
}
tokenizer.eat(RIGHTSQUAREBRACKET);
// If no range is indicated, either by using the bracketed range notation
// or in the property description, then [−∞,∞] is assumed.
if (min === null && max === null) {
return null;
}
return {
type: 'Range',
min: min,
max: max
};
}
function readType(tokenizer) {
var name;
var opts = null;
tokenizer.eat(LESSTHANSIGN);
name = scanWord(tokenizer);
if (tokenizer.charCode() === LEFTPARENTHESIS &&
tokenizer.nextCharCode() === RIGHTPARENTHESIS) {
tokenizer.pos += 2;
name += '()';
}
if (tokenizer.charCodeAt(tokenizer.findWsEnd(tokenizer.pos)) === LEFTSQUAREBRACKET) {
scanSpaces(tokenizer);
opts = readTypeRange(tokenizer);
}
tokenizer.eat(GREATERTHANSIGN);
return maybeMultiplied(tokenizer, {
type: 'Type',
name: name,
opts: opts
});
}
function readKeywordOrFunction(tokenizer) {
var name;
name = scanWord(tokenizer);
if (tokenizer.charCode() === LEFTPARENTHESIS) {
tokenizer.pos++;
return {
type: 'Function',
name: name
};
}
return maybeMultiplied(tokenizer, {
type: 'Keyword',
name: name
});
}
function regroupTerms(terms, combinators) {
function createGroup(terms, combinator) {
return {
type: 'Group',
terms: terms,
combinator: combinator,
disallowEmpty: false,
explicit: false
};
}
combinators = Object.keys(combinators).sort(function(a, b) {
return COMBINATOR_PRECEDENCE[a] - COMBINATOR_PRECEDENCE[b];
});
while (combinators.length > 0) {
var combinator = combinators.shift();
for (var i = 0, subgroupStart = 0; i < terms.length; i++) {
var term = terms[i];
if (term.type === 'Combinator') {
if (term.value === combinator) {
if (subgroupStart === -1) {
subgroupStart = i - 1;
}
terms.splice(i, 1);
i--;
} else {
if (subgroupStart !== -1 && i - subgroupStart > 1) {
terms.splice(
subgroupStart,
i - subgroupStart,
createGroup(terms.slice(subgroupStart, i), combinator)
);
i = subgroupStart + 1;
}
subgroupStart = -1;
}
}
}
if (subgroupStart !== -1 && combinators.length) {
terms.splice(
subgroupStart,
i - subgroupStart,
createGroup(terms.slice(subgroupStart, i), combinator)
);
}
}
return combinator;
}
function readImplicitGroup(tokenizer) {
var terms = [];
var combinators = {};
var token;
var prevToken = null;
var prevTokenPos = tokenizer.pos;
while (token = peek(tokenizer)) {
if (token.type !== 'Spaces') {
if (token.type === 'Combinator') {
// check for combinator in group beginning and double combinator sequence
if (prevToken === null || prevToken.type === 'Combinator') {
tokenizer.pos = prevTokenPos;
tokenizer.error('Unexpected combinator');
}
combinators[token.value] = true;
} else if (prevToken !== null && prevToken.type !== 'Combinator') {
combinators[' '] = true; // a b
terms.push({
type: 'Combinator',
value: ' '
});
}
terms.push(token);
prevToken = token;
prevTokenPos = tokenizer.pos;
}
}
// check for combinator in group ending
if (prevToken !== null && prevToken.type === 'Combinator') {
tokenizer.pos -= prevTokenPos;
tokenizer.error('Unexpected combinator');
}
return {
type: 'Group',
terms: terms,
combinator: regroupTerms(terms, combinators) || ' ',
disallowEmpty: false,
explicit: false
};
}
function readGroup(tokenizer) {
var result;
tokenizer.eat(LEFTSQUAREBRACKET);
result = readImplicitGroup(tokenizer);
tokenizer.eat(RIGHTSQUAREBRACKET);
result.explicit = true;
if (tokenizer.charCode() === EXCLAMATIONMARK) {
tokenizer.pos++;
result.disallowEmpty = true;
}
return result;
}
function peek(tokenizer) {
var code = tokenizer.charCode();
if (code < 128 && NAME_CHAR[code] === 1) {
return readKeywordOrFunction(tokenizer);
}
switch (code) {
case RIGHTSQUAREBRACKET:
// don't eat, stop scan a group
break;
case LEFTSQUAREBRACKET:
return maybeMultiplied(tokenizer, readGroup(tokenizer));
case LESSTHANSIGN:
return tokenizer.nextCharCode() === APOSTROPHE
? readProperty(tokenizer)
: readType(tokenizer);
case VERTICALLINE:
return {
type: 'Combinator',
value: tokenizer.substringToPos(
tokenizer.nextCharCode() === VERTICALLINE
? tokenizer.pos + 2
: tokenizer.pos + 1
)
};
case AMPERSAND:
tokenizer.pos++;
tokenizer.eat(AMPERSAND);
return {
type: 'Combinator',
value: '&&'
};
case COMMA:
tokenizer.pos++;
return {
type: 'Comma'
};
case APOSTROPHE:
return maybeMultiplied(tokenizer, {
type: 'String',
value: scanString(tokenizer)
});
case SPACE:
case TAB:
case N:
case R:
case F:
return {
type: 'Spaces',
value: scanSpaces(tokenizer)
};
case COMMERCIALAT:
code = tokenizer.nextCharCode();
if (code < 128 && NAME_CHAR[code] === 1) {
tokenizer.pos++;
return {
type: 'AtKeyword',
name: scanWord(tokenizer)
};
}
return maybeToken(tokenizer);
case ASTERISK:
case PLUSSIGN:
case QUESTIONMARK:
case NUMBERSIGN:
case EXCLAMATIONMARK:
// prohibited tokens (used as a multiplier start)
break;
case LEFTCURLYBRACKET:
// LEFTCURLYBRACKET is allowed since mdn/data uses it w/o quoting
// check next char isn't a number, because it's likely a disjoined multiplier
code = tokenizer.nextCharCode();
if (code < 48 || code > 57) {
return maybeToken(tokenizer);
}
break;
default:
return maybeToken(tokenizer);
}
}
function parse(source) {
var tokenizer = new Tokenizer(source);
var result = readImplicitGroup(tokenizer);
if (tokenizer.pos !== source.length) {
tokenizer.error('Unexpected input');
}
// reduce redundant groups with single group term
if (result.terms.length === 1 && result.terms[0].type === 'Group') {
result = result.terms[0];
}
return result;
}
// warm up parse to elimitate code branches that never execute
// fix soft deoptimizations (insufficient type feedback)
parse('[a&&<b>#|<\'c\'>*||e() f{2} /,(% g#{1,2} h{2,})]!');
module.exports = parse;

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var SyntaxError = require('./SyntaxError');
var TAB = 9;
var N = 10;
var F = 12;
var R = 13;
var SPACE = 32;
var Tokenizer = function(str) {
this.str = str;
this.pos = 0;
};
Tokenizer.prototype = {
charCodeAt: function(pos) {
return pos < this.str.length ? this.str.charCodeAt(pos) : 0;
},
charCode: function() {
return this.charCodeAt(this.pos);
},
nextCharCode: function() {
return this.charCodeAt(this.pos + 1);
},
nextNonWsCode: function(pos) {
return this.charCodeAt(this.findWsEnd(pos));
},
findWsEnd: function(pos) {
for (; pos < this.str.length; pos++) {
var code = this.str.charCodeAt(pos);
if (code !== R && code !== N && code !== F && code !== SPACE && code !== TAB) {
break;
}
}
return pos;
},
substringToPos: function(end) {
return this.str.substring(this.pos, this.pos = end);
},
eat: function(code) {
if (this.charCode() !== code) {
this.error('Expect `' + String.fromCharCode(code) + '`');
}
this.pos++;
},
peek: function() {
return this.pos < this.str.length ? this.str.charAt(this.pos++) : '';
},
error: function(message) {
throw new SyntaxError(message, this.str, this.pos);
}
};
module.exports = Tokenizer;

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var noop = function() {};
function ensureFunction(value) {
return typeof value === 'function' ? value : noop;
}
module.exports = function(node, options, context) {
function walk(node) {
enter.call(context, node);
switch (node.type) {
case 'Group':
node.terms.forEach(walk);
break;
case 'Multiplier':
walk(node.term);
break;
case 'Type':
case 'Property':
case 'Keyword':
case 'AtKeyword':
case 'Function':
case 'String':
case 'Token':
case 'Comma':
break;
default:
throw new Error('Unknown type: ' + node.type);
}
leave.call(context, node);
}
var enter = noop;
var leave = noop;
if (typeof options === 'function') {
enter = options;
} else if (options) {
enter = ensureFunction(options.enter);
leave = ensureFunction(options.leave);
}
if (enter === noop && leave === noop) {
throw new Error('Neither `enter` nor `leave` walker handler is set or both aren\'t a function');
}
walk(node, context);
};

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var sourceMap = require('./sourceMap');
var hasOwnProperty = Object.prototype.hasOwnProperty;
function processChildren(node, delimeter) {
var list = node.children;
var prev = null;
if (typeof delimeter !== 'function') {
list.forEach(this.node, this);
} else {
list.forEach(function(node) {
if (prev !== null) {
delimeter.call(this, prev);
}
this.node(node);
prev = node;
}, this);
}
}
module.exports = function createGenerator(config) {
function processNode(node) {
if (hasOwnProperty.call(types, node.type)) {
types[node.type].call(this, node);
} else {
throw new Error('Unknown node type: ' + node.type);
}
}
var types = {};
if (config.node) {
for (var name in config.node) {
types[name] = config.node[name].generate;
}
}
return function(node, options) {
var buffer = '';
var handlers = {
children: processChildren,
node: processNode,
chunk: function(chunk) {
buffer += chunk;
},
result: function() {
return buffer;
}
};
if (options) {
if (typeof options.decorator === 'function') {
handlers = options.decorator(handlers);
}
if (options.sourceMap) {
handlers = sourceMap(handlers);
}
}
handlers.node(node);
return handlers.result();
};
};

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var createGenerator = require('./create');
var config = require('../syntax/config/parser');
module.exports = createGenerator(config);

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assets_old/node_modules/css-tree/lib/generator/sourceMap.js generated vendored Normal file
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var SourceMapGenerator = require('source-map/lib/source-map-generator').SourceMapGenerator;
var trackNodes = {
Atrule: true,
Selector: true,
Declaration: true
};
module.exports = function generateSourceMap(handlers) {
var map = new SourceMapGenerator();
var line = 1;
var column = 0;
var generated = {
line: 1,
column: 0
};
var original = {
line: 0, // should be zero to add first mapping
column: 0
};
var sourceMappingActive = false;
var activatedGenerated = {
line: 1,
column: 0
};
var activatedMapping = {
generated: activatedGenerated
};
var handlersNode = handlers.node;
handlers.node = function(node) {
if (node.loc && node.loc.start && trackNodes.hasOwnProperty(node.type)) {
var nodeLine = node.loc.start.line;
var nodeColumn = node.loc.start.column - 1;
if (original.line !== nodeLine ||
original.column !== nodeColumn) {
original.line = nodeLine;
original.column = nodeColumn;
generated.line = line;
generated.column = column;
if (sourceMappingActive) {
sourceMappingActive = false;
if (generated.line !== activatedGenerated.line ||
generated.column !== activatedGenerated.column) {
map.addMapping(activatedMapping);
}
}
sourceMappingActive = true;
map.addMapping({
source: node.loc.source,
original: original,
generated: generated
});
}
}
handlersNode.call(this, node);
if (sourceMappingActive && trackNodes.hasOwnProperty(node.type)) {
activatedGenerated.line = line;
activatedGenerated.column = column;
}
};
var handlersChunk = handlers.chunk;
handlers.chunk = function(chunk) {
for (var i = 0; i < chunk.length; i++) {
if (chunk.charCodeAt(i) === 10) { // \n
line++;
column = 0;
} else {
column++;
}
}
handlersChunk(chunk);
};
var handlersResult = handlers.result;
handlers.result = function() {
if (sourceMappingActive) {
map.addMapping(activatedMapping);
}
return {
css: handlersResult(),
map: map
};
};
return handlers;
};

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module.exports = require('./syntax');

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assets_old/node_modules/css-tree/lib/lexer/Lexer.js generated vendored Normal file
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var SyntaxReferenceError = require('./error').SyntaxReferenceError;
var MatchError = require('./error').MatchError;
var names = require('../utils/names');
var generic = require('./generic');
var parse = require('../definition-syntax/parse');
var generate = require('../definition-syntax/generate');
var walk = require('../definition-syntax/walk');
var prepareTokens = require('./prepare-tokens');
var buildMatchGraph = require('./match-graph').buildMatchGraph;
var matchAsTree = require('./match').matchAsTree;
var trace = require('./trace');
var search = require('./search');
var getStructureFromConfig = require('./structure').getStructureFromConfig;
var cssWideKeywords = buildMatchGraph('inherit | initial | unset');
var cssWideKeywordsWithExpression = buildMatchGraph('inherit | initial | unset | <-ms-legacy-expression>');
function dumpMapSyntax(map, compact, syntaxAsAst) {
var result = {};
for (var name in map) {
if (map[name].syntax) {
result[name] = syntaxAsAst
? map[name].syntax
: generate(map[name].syntax, { compact: compact });
}
}
return result;
}
function valueHasVar(tokens) {
for (var i = 0; i < tokens.length; i++) {
if (tokens[i].value.toLowerCase() === 'var(') {
return true;
}
}
return false;
}
function buildMatchResult(match, error, iterations) {
return {
matched: match,
iterations: iterations,
error: error,
getTrace: trace.getTrace,
isType: trace.isType,
isProperty: trace.isProperty,
isKeyword: trace.isKeyword
};
}
function matchSyntax(lexer, syntax, value, useCommon) {
var tokens = prepareTokens(value, lexer.syntax);
var result;
if (valueHasVar(tokens)) {
return buildMatchResult(null, new Error('Matching for a tree with var() is not supported'));
}
if (useCommon) {
result = matchAsTree(tokens, lexer.valueCommonSyntax, lexer);
}
if (!useCommon || !result.match) {
result = matchAsTree(tokens, syntax.match, lexer);
if (!result.match) {
return buildMatchResult(
null,
new MatchError(result.reason, syntax.syntax, value, result),
result.iterations
);
}
}
return buildMatchResult(result.match, null, result.iterations);
}
var Lexer = function(config, syntax, structure) {
this.valueCommonSyntax = cssWideKeywords;
this.syntax = syntax;
this.generic = false;
this.properties = {};
this.types = {};
this.structure = structure || getStructureFromConfig(config);
if (config) {
if (config.types) {
for (var name in config.types) {
this.addType_(name, config.types[name]);
}
}
if (config.generic) {
this.generic = true;
for (var name in generic) {
this.addType_(name, generic[name]);
}
}
if (config.properties) {
for (var name in config.properties) {
this.addProperty_(name, config.properties[name]);
}
}
}
};
Lexer.prototype = {
structure: {},
checkStructure: function(ast) {
function collectWarning(node, message) {
warns.push({
node: node,
message: message
});
}
var structure = this.structure;
var warns = [];
this.syntax.walk(ast, function(node) {
if (structure.hasOwnProperty(node.type)) {
structure[node.type].check(node, collectWarning);
} else {
collectWarning(node, 'Unknown node type `' + node.type + '`');
}
});
return warns.length ? warns : false;
},
createDescriptor: function(syntax, type, name) {
var ref = {
type: type,
name: name
};
var descriptor = {
type: type,
name: name,
syntax: null,
match: null
};
if (typeof syntax === 'function') {
descriptor.match = buildMatchGraph(syntax, ref);
} else {
if (typeof syntax === 'string') {
// lazy parsing on first access
Object.defineProperty(descriptor, 'syntax', {
get: function() {
Object.defineProperty(descriptor, 'syntax', {
value: parse(syntax)
});
return descriptor.syntax;
}
});
} else {
descriptor.syntax = syntax;
}
// lazy graph build on first access
Object.defineProperty(descriptor, 'match', {
get: function() {
Object.defineProperty(descriptor, 'match', {
value: buildMatchGraph(descriptor.syntax, ref)
});
return descriptor.match;
}
});
}
return descriptor;
},
addProperty_: function(name, syntax) {
this.properties[name] = this.createDescriptor(syntax, 'Property', name);
},
addType_: function(name, syntax) {
this.types[name] = this.createDescriptor(syntax, 'Type', name);
if (syntax === generic['-ms-legacy-expression']) {
this.valueCommonSyntax = cssWideKeywordsWithExpression;
}
},
matchDeclaration: function(node) {
if (node.type !== 'Declaration') {
return buildMatchResult(null, new Error('Not a Declaration node'));
}
return this.matchProperty(node.property, node.value);
},
matchProperty: function(propertyName, value) {
var property = names.property(propertyName);
// don't match syntax for a custom property
if (property.custom) {
return buildMatchResult(null, new Error('Lexer matching doesn\'t applicable for custom properties'));
}
var propertySyntax = property.vendor
? this.getProperty(property.name) || this.getProperty(property.basename)
: this.getProperty(property.name);
if (!propertySyntax) {
return buildMatchResult(null, new SyntaxReferenceError('Unknown property', propertyName));
}
return matchSyntax(this, propertySyntax, value, true);
},
matchType: function(typeName, value) {
var typeSyntax = this.getType(typeName);
if (!typeSyntax) {
return buildMatchResult(null, new SyntaxReferenceError('Unknown type', typeName));
}
return matchSyntax(this, typeSyntax, value, false);
},
match: function(syntax, value) {
if (typeof syntax !== 'string' && (!syntax || !syntax.type)) {
return buildMatchResult(null, new SyntaxReferenceError('Bad syntax'));
}
if (typeof syntax === 'string' || !syntax.match) {
syntax = this.createDescriptor(syntax, 'Type', 'anonymous');
}
return matchSyntax(this, syntax, value, false);
},
findValueFragments: function(propertyName, value, type, name) {
return search.matchFragments(this, value, this.matchProperty(propertyName, value), type, name);
},
findDeclarationValueFragments: function(declaration, type, name) {
return search.matchFragments(this, declaration.value, this.matchDeclaration(declaration), type, name);
},
findAllFragments: function(ast, type, name) {
var result = [];
this.syntax.walk(ast, {
visit: 'Declaration',
enter: function(declaration) {
result.push.apply(result, this.findDeclarationValueFragments(declaration, type, name));
}.bind(this)
});
return result;
},
getProperty: function(name) {
return this.properties.hasOwnProperty(name) ? this.properties[name] : null;
},
getType: function(name) {
return this.types.hasOwnProperty(name) ? this.types[name] : null;
},
validate: function() {
function validate(syntax, name, broken, descriptor) {
if (broken.hasOwnProperty(name)) {
return broken[name];
}
broken[name] = false;
if (descriptor.syntax !== null) {
walk(descriptor.syntax, function(node) {
if (node.type !== 'Type' && node.type !== 'Property') {
return;
}
var map = node.type === 'Type' ? syntax.types : syntax.properties;
var brokenMap = node.type === 'Type' ? brokenTypes : brokenProperties;
if (!map.hasOwnProperty(node.name) || validate(syntax, node.name, brokenMap, map[node.name])) {
broken[name] = true;
}
}, this);
}
}
var brokenTypes = {};
var brokenProperties = {};
for (var key in this.types) {
validate(this, key, brokenTypes, this.types[key]);
}
for (var key in this.properties) {
validate(this, key, brokenProperties, this.properties[key]);
}
brokenTypes = Object.keys(brokenTypes).filter(function(name) {
return brokenTypes[name];
});
brokenProperties = Object.keys(brokenProperties).filter(function(name) {
return brokenProperties[name];
});
if (brokenTypes.length || brokenProperties.length) {
return {
types: brokenTypes,
properties: brokenProperties
};
}
return null;
},
dump: function(syntaxAsAst, pretty) {
return {
generic: this.generic,
types: dumpMapSyntax(this.types, !pretty, syntaxAsAst),
properties: dumpMapSyntax(this.properties, !pretty, syntaxAsAst)
};
},
toString: function() {
return JSON.stringify(this.dump());
}
};
module.exports = Lexer;

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var createCustomError = require('../utils/createCustomError');
var generate = require('../definition-syntax/generate');
function fromMatchResult(matchResult) {
var tokens = matchResult.tokens;
var longestMatch = matchResult.longestMatch;
var node = longestMatch < tokens.length ? tokens[longestMatch].node : null;
var mismatchOffset = -1;
var entries = 0;
var css = '';
for (var i = 0; i < tokens.length; i++) {
if (i === longestMatch) {
mismatchOffset = css.length;
}
if (node !== null && tokens[i].node === node) {
if (i <= longestMatch) {
entries++;
} else {
entries = 0;
}
}
css += tokens[i].value;
}
return {
node: node,
css: css,
mismatchOffset: mismatchOffset === -1 ? css.length : mismatchOffset,
last: node === null || entries > 1
};
}
function getLocation(node, point) {
var loc = node && node.loc && node.loc[point];
if (loc) {
return {
offset: loc.offset,
line: loc.line,
column: loc.column
};
}
return null;
}
var SyntaxReferenceError = function(type, referenceName) {
var error = createCustomError(
'SyntaxReferenceError',
type + (referenceName ? ' `' + referenceName + '`' : '')
);
error.reference = referenceName;
return error;
};
var MatchError = function(message, syntax, node, matchResult) {
var error = createCustomError('SyntaxMatchError', message);
var details = fromMatchResult(matchResult);
var mismatchOffset = details.mismatchOffset || 0;
var badNode = details.node || node;
var end = getLocation(badNode, 'end');
var start = details.last ? end : getLocation(badNode, 'start');
var css = details.css;
error.rawMessage = message;
error.syntax = syntax ? generate(syntax) : '<generic>';
error.css = css;
error.mismatchOffset = mismatchOffset;
error.loc = {
source: (badNode && badNode.loc && badNode.loc.source) || '<unknown>',
start: start,
end: end
};
error.line = start ? start.line : undefined;
error.column = start ? start.column : undefined;
error.offset = start ? start.offset : undefined;
error.message = message + '\n' +
' syntax: ' + error.syntax + '\n' +
' value: ' + (error.css || '<empty string>') + '\n' +
' --------' + new Array(error.mismatchOffset + 1).join('-') + '^';
return error;
};
module.exports = {
SyntaxReferenceError: SyntaxReferenceError,
MatchError: MatchError
};

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var isDigit = require('../tokenizer').isDigit;
var cmpChar = require('../tokenizer').cmpChar;
var TYPE = require('../tokenizer').TYPE;
var DELIM = TYPE.Delim;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var IDENT = TYPE.Ident;
var NUMBER = TYPE.Number;
var DIMENSION = TYPE.Dimension;
var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-)
var N = 0x006E; // U+006E LATIN SMALL LETTER N (n)
var DISALLOW_SIGN = true;
var ALLOW_SIGN = false;
function isDelim(token, code) {
return token !== null && token.type === DELIM && token.value.charCodeAt(0) === code;
}
function skipSC(token, offset, getNextToken) {
while (token !== null && (token.type === WHITESPACE || token.type === COMMENT)) {
token = getNextToken(++offset);
}
return offset;
}
function checkInteger(token, valueOffset, disallowSign, offset) {
if (!token) {
return 0;
}
var code = token.value.charCodeAt(valueOffset);
if (code === PLUSSIGN || code === HYPHENMINUS) {
if (disallowSign) {
// Number sign is not allowed
return 0;
}
valueOffset++;
}
for (; valueOffset < token.value.length; valueOffset++) {
if (!isDigit(token.value.charCodeAt(valueOffset))) {
// Integer is expected
return 0;
}
}
return offset + 1;
}
// ... <signed-integer>
// ... ['+' | '-'] <signless-integer>
function consumeB(token, offset_, getNextToken) {
var sign = false;
var offset = skipSC(token, offset_, getNextToken);
token = getNextToken(offset);
if (token === null) {
return offset_;
}
if (token.type !== NUMBER) {
if (isDelim(token, PLUSSIGN) || isDelim(token, HYPHENMINUS)) {
sign = true;
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
if (token === null && token.type !== NUMBER) {
return 0;
}
} else {
return offset_;
}
}
if (!sign) {
var code = token.value.charCodeAt(0);
if (code !== PLUSSIGN && code !== HYPHENMINUS) {
// Number sign is expected
return 0;
}
}
return checkInteger(token, sign ? 0 : 1, sign, offset);
}
// An+B microsyntax https://www.w3.org/TR/css-syntax-3/#anb
module.exports = function anPlusB(token, getNextToken) {
/* eslint-disable brace-style*/
var offset = 0;
if (!token) {
return 0;
}
// <integer>
if (token.type === NUMBER) {
return checkInteger(token, 0, ALLOW_SIGN, offset); // b
}
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
// -n- <signless-integer>
// <dashndashdigit-ident>
else if (token.type === IDENT && token.value.charCodeAt(0) === HYPHENMINUS) {
// expect 1st char is N
if (!cmpChar(token.value, 1, N)) {
return 0;
}
switch (token.value.length) {
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
case 2:
return consumeB(getNextToken(++offset), offset, getNextToken);
// -n- <signless-integer>
case 3:
if (token.value.charCodeAt(2) !== HYPHENMINUS) {
return 0;
}
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
return checkInteger(token, 0, DISALLOW_SIGN, offset);
// <dashndashdigit-ident>
default:
if (token.value.charCodeAt(2) !== HYPHENMINUS) {
return 0;
}
return checkInteger(token, 3, DISALLOW_SIGN, offset);
}
}
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
// '+'? n- <signless-integer>
// '+'? <ndashdigit-ident>
else if (token.type === IDENT || (isDelim(token, PLUSSIGN) && getNextToken(offset + 1).type === IDENT)) {
// just ignore a plus
if (token.type !== IDENT) {
token = getNextToken(++offset);
}
if (token === null || !cmpChar(token.value, 0, N)) {
return 0;
}
switch (token.value.length) {
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
case 1:
return consumeB(getNextToken(++offset), offset, getNextToken);
// '+'? n- <signless-integer>
case 2:
if (token.value.charCodeAt(1) !== HYPHENMINUS) {
return 0;
}
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
return checkInteger(token, 0, DISALLOW_SIGN, offset);
// '+'? <ndashdigit-ident>
default:
if (token.value.charCodeAt(1) !== HYPHENMINUS) {
return 0;
}
return checkInteger(token, 2, DISALLOW_SIGN, offset);
}
}
// <ndashdigit-dimension>
// <ndash-dimension> <signless-integer>
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
else if (token.type === DIMENSION) {
var code = token.value.charCodeAt(0);
var sign = code === PLUSSIGN || code === HYPHENMINUS ? 1 : 0;
for (var i = sign; i < token.value.length; i++) {
if (!isDigit(token.value.charCodeAt(i))) {
break;
}
}
if (i === sign) {
// Integer is expected
return 0;
}
if (!cmpChar(token.value, i, N)) {
return 0;
}
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
if (i + 1 === token.value.length) {
return consumeB(getNextToken(++offset), offset, getNextToken);
} else {
if (token.value.charCodeAt(i + 1) !== HYPHENMINUS) {
return 0;
}
// <ndash-dimension> <signless-integer>
if (i + 2 === token.value.length) {
offset = skipSC(getNextToken(++offset), offset, getNextToken);
token = getNextToken(offset);
return checkInteger(token, 0, DISALLOW_SIGN, offset);
}
// <ndashdigit-dimension>
else {
return checkInteger(token, i + 2, DISALLOW_SIGN, offset);
}
}
}
return 0;
};

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var isHexDigit = require('../tokenizer').isHexDigit;
var cmpChar = require('../tokenizer').cmpChar;
var TYPE = require('../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var DELIM = TYPE.Delim;
var NUMBER = TYPE.Number;
var DIMENSION = TYPE.Dimension;
var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-)
var QUESTIONMARK = 0x003F; // U+003F QUESTION MARK (?)
var U = 0x0075; // U+0075 LATIN SMALL LETTER U (u)
function isDelim(token, code) {
return token !== null && token.type === DELIM && token.value.charCodeAt(0) === code;
}
function startsWith(token, code) {
return token.value.charCodeAt(0) === code;
}
function hexSequence(token, offset, allowDash) {
for (var pos = offset, hexlen = 0; pos < token.value.length; pos++) {
var code = token.value.charCodeAt(pos);
if (code === HYPHENMINUS && allowDash && hexlen !== 0) {
if (hexSequence(token, offset + hexlen + 1, false) > 0) {
return 6; // dissallow following question marks
}
return 0; // dash at the ending of a hex sequence is not allowed
}
if (!isHexDigit(code)) {
return 0; // not a hex digit
}
if (++hexlen > 6) {
return 0; // too many hex digits
};
}
return hexlen;
}
function withQuestionMarkSequence(consumed, length, getNextToken) {
if (!consumed) {
return 0; // nothing consumed
}
while (isDelim(getNextToken(length), QUESTIONMARK)) {
if (++consumed > 6) {
return 0; // too many question marks
}
length++;
}
return length;
}
// https://drafts.csswg.org/css-syntax/#urange
// Informally, the <urange> production has three forms:
// U+0001
// Defines a range consisting of a single code point, in this case the code point "1".
// U+0001-00ff
// Defines a range of codepoints between the first and the second value, in this case
// the range between "1" and "ff" (255 in decimal) inclusive.
// U+00??
// Defines a range of codepoints where the "?" characters range over all hex digits,
// in this case defining the same as the value U+0000-00ff.
// In each form, a maximum of 6 digits is allowed for each hexadecimal number (if you treat "?" as a hexadecimal digit).
//
// <urange> =
// u '+' <ident-token> '?'* |
// u <dimension-token> '?'* |
// u <number-token> '?'* |
// u <number-token> <dimension-token> |
// u <number-token> <number-token> |
// u '+' '?'+
module.exports = function urange(token, getNextToken) {
var length = 0;
// should start with `u` or `U`
if (token === null || token.type !== IDENT || !cmpChar(token.value, 0, U)) {
return 0;
}
token = getNextToken(++length);
if (token === null) {
return 0;
}
// u '+' <ident-token> '?'*
// u '+' '?'+
if (isDelim(token, PLUSSIGN)) {
token = getNextToken(++length);
if (token === null) {
return 0;
}
if (token.type === IDENT) {
// u '+' <ident-token> '?'*
return withQuestionMarkSequence(hexSequence(token, 0, true), ++length, getNextToken);
}
if (isDelim(token, QUESTIONMARK)) {
// u '+' '?'+
return withQuestionMarkSequence(1, ++length, getNextToken);
}
// Hex digit or question mark is expected
return 0;
}
// u <number-token> '?'*
// u <number-token> <dimension-token>
// u <number-token> <number-token>
if (token.type === NUMBER) {
if (!startsWith(token, PLUSSIGN)) {
return 0;
}
var consumedHexLength = hexSequence(token, 1, true);
if (consumedHexLength === 0) {
return 0;
}
token = getNextToken(++length);
if (token === null) {
// u <number-token> <eof>
return length;
}
if (token.type === DIMENSION || token.type === NUMBER) {
// u <number-token> <dimension-token>
// u <number-token> <number-token>
if (!startsWith(token, HYPHENMINUS) || !hexSequence(token, 1, false)) {
return 0;
}
return length + 1;
}
// u <number-token> '?'*
return withQuestionMarkSequence(consumedHexLength, length, getNextToken);
}
// u <dimension-token> '?'*
if (token.type === DIMENSION) {
if (!startsWith(token, PLUSSIGN)) {
return 0;
}
return withQuestionMarkSequence(hexSequence(token, 1, true), ++length, getNextToken);
}
return 0;
};

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assets_old/node_modules/css-tree/lib/lexer/generic.js generated vendored Normal file
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var tokenizer = require('../tokenizer');
var isIdentifierStart = tokenizer.isIdentifierStart;
var isHexDigit = tokenizer.isHexDigit;
var isDigit = tokenizer.isDigit;
var cmpStr = tokenizer.cmpStr;
var consumeNumber = tokenizer.consumeNumber;
var TYPE = tokenizer.TYPE;
var anPlusB = require('./generic-an-plus-b');
var urange = require('./generic-urange');
var cssWideKeywords = ['unset', 'initial', 'inherit'];
var calcFunctionNames = ['calc(', '-moz-calc(', '-webkit-calc('];
// https://www.w3.org/TR/css-values-3/#lengths
var LENGTH = {
// absolute length units
'px': true,
'mm': true,
'cm': true,
'in': true,
'pt': true,
'pc': true,
'q': true,
// relative length units
'em': true,
'ex': true,
'ch': true,
'rem': true,
// viewport-percentage lengths
'vh': true,
'vw': true,
'vmin': true,
'vmax': true,
'vm': true
};
var ANGLE = {
'deg': true,
'grad': true,
'rad': true,
'turn': true
};
var TIME = {
's': true,
'ms': true
};
var FREQUENCY = {
'hz': true,
'khz': true
};
// https://www.w3.org/TR/css-values-3/#resolution (https://drafts.csswg.org/css-values/#resolution)
var RESOLUTION = {
'dpi': true,
'dpcm': true,
'dppx': true,
'x': true // https://github.com/w3c/csswg-drafts/issues/461
};
// https://drafts.csswg.org/css-grid/#fr-unit
var FLEX = {
'fr': true
};
// https://www.w3.org/TR/css3-speech/#mixing-props-voice-volume
var DECIBEL = {
'db': true
};
// https://www.w3.org/TR/css3-speech/#voice-props-voice-pitch
var SEMITONES = {
'st': true
};
// safe char code getter
function charCode(str, index) {
return index < str.length ? str.charCodeAt(index) : 0;
}
function eqStr(actual, expected) {
return cmpStr(actual, 0, actual.length, expected);
}
function eqStrAny(actual, expected) {
for (var i = 0; i < expected.length; i++) {
if (eqStr(actual, expected[i])) {
return true;
}
}
return false;
}
// IE postfix hack, i.e. 123\0 or 123px\9
function isPostfixIeHack(str, offset) {
if (offset !== str.length - 2) {
return false;
}
return (
str.charCodeAt(offset) === 0x005C && // U+005C REVERSE SOLIDUS (\)
isDigit(str.charCodeAt(offset + 1))
);
}
function outOfRange(opts, value, numEnd) {
if (opts && opts.type === 'Range') {
var num = Number(
numEnd !== undefined && numEnd !== value.length
? value.substr(0, numEnd)
: value
);
if (isNaN(num)) {
return true;
}
if (opts.min !== null && num < opts.min) {
return true;
}
if (opts.max !== null && num > opts.max) {
return true;
}
}
return false;
}
function consumeFunction(token, getNextToken) {
var startIdx = token.index;
var length = 0;
// balanced token consuming
do {
length++;
if (token.balance <= startIdx) {
break;
}
} while (token = getNextToken(length));
return length;
}
// TODO: implement
// can be used wherever <length>, <frequency>, <angle>, <time>, <percentage>, <number>, or <integer> values are allowed
// https://drafts.csswg.org/css-values/#calc-notation
function calc(next) {
return function(token, getNextToken, opts) {
if (token === null) {
return 0;
}
if (token.type === TYPE.Function && eqStrAny(token.value, calcFunctionNames)) {
return consumeFunction(token, getNextToken);
}
return next(token, getNextToken, opts);
};
}
function tokenType(expectedTokenType) {
return function(token) {
if (token === null || token.type !== expectedTokenType) {
return 0;
}
return 1;
};
}
function func(name) {
name = name + '(';
return function(token, getNextToken) {
if (token !== null && eqStr(token.value, name)) {
return consumeFunction(token, getNextToken);
}
return 0;
};
}
// =========================
// Complex types
//
// https://drafts.csswg.org/css-values-4/#custom-idents
// 4.2. Author-defined Identifiers: the <custom-ident> type
// Some properties accept arbitrary author-defined identifiers as a component value.
// This generic data type is denoted by <custom-ident>, and represents any valid CSS identifier
// that would not be misinterpreted as a pre-defined keyword in that property’s value definition.
//
// See also: https://developer.mozilla.org/en-US/docs/Web/CSS/custom-ident
function customIdent(token) {
if (token === null || token.type !== TYPE.Ident) {
return 0;
}
var name = token.value.toLowerCase();
// The CSS-wide keywords are not valid <custom-ident>s
if (eqStrAny(name, cssWideKeywords)) {
return 0;
}
// The default keyword is reserved and is also not a valid <custom-ident>
if (eqStr(name, 'default')) {
return 0;
}
// TODO: ignore property specific keywords (as described https://developer.mozilla.org/en-US/docs/Web/CSS/custom-ident)
// Specifications using <custom-ident> must specify clearly what other keywords
// are excluded from <custom-ident>, if any—for example by saying that any pre-defined keywords
// in that property’s value definition are excluded. Excluded keywords are excluded
// in all ASCII case permutations.
return 1;
}
// https://drafts.csswg.org/css-variables/#typedef-custom-property-name
// A custom property is any property whose name starts with two dashes (U+002D HYPHEN-MINUS), like --foo.
// The <custom-property-name> production corresponds to this: it’s defined as any valid identifier
// that starts with two dashes, except -- itself, which is reserved for future use by CSS.
// NOTE: Current implementation treat `--` as a valid name since most (all?) major browsers treat it as valid.
function customPropertyName(token) {
// ... defined as any valid identifier
if (token === null || token.type !== TYPE.Ident) {
return 0;
}
// ... that starts with two dashes (U+002D HYPHEN-MINUS)
if (charCode(token.value, 0) !== 0x002D || charCode(token.value, 1) !== 0x002D) {
return 0;
}
return 1;
}
// https://drafts.csswg.org/css-color-4/#hex-notation
// The syntax of a <hex-color> is a <hash-token> token whose value consists of 3, 4, 6, or 8 hexadecimal digits.
// In other words, a hex color is written as a hash character, "#", followed by some number of digits 0-9 or
// letters a-f (the case of the letters doesn’t matter - #00ff00 is identical to #00FF00).
function hexColor(token) {
if (token === null || token.type !== TYPE.Hash) {
return 0;
}
var length = token.value.length;
// valid values (length): #rgb (4), #rgba (5), #rrggbb (7), #rrggbbaa (9)
if (length !== 4 && length !== 5 && length !== 7 && length !== 9) {
return 0;
}
for (var i = 1; i < length; i++) {
if (!isHexDigit(token.value.charCodeAt(i))) {
return 0;
}
}
return 1;
}
function idSelector(token) {
if (token === null || token.type !== TYPE.Hash) {
return 0;
}
if (!isIdentifierStart(charCode(token.value, 1), charCode(token.value, 2), charCode(token.value, 3))) {
return 0;
}
return 1;
}
// https://drafts.csswg.org/css-syntax/#any-value
// It represents the entirety of what a valid declaration can have as its value.
function declarationValue(token, getNextToken) {
if (!token) {
return 0;
}
var length = 0;
var level = 0;
var startIdx = token.index;
// The <declaration-value> production matches any sequence of one or more tokens,
// so long as the sequence ...
scan:
do {
switch (token.type) {
// ... does not contain <bad-string-token>, <bad-url-token>,
case TYPE.BadString:
case TYPE.BadUrl:
break scan;
// ... unmatched <)-token>, <]-token>, or <}-token>,
case TYPE.RightCurlyBracket:
case TYPE.RightParenthesis:
case TYPE.RightSquareBracket:
if (token.balance > token.index || token.balance < startIdx) {
break scan;
}
level--;
break;
// ... or top-level <semicolon-token> tokens
case TYPE.Semicolon:
if (level === 0) {
break scan;
}
break;
// ... or <delim-token> tokens with a value of "!"
case TYPE.Delim:
if (token.value === '!' && level === 0) {
break scan;
}
break;
case TYPE.Function:
case TYPE.LeftParenthesis:
case TYPE.LeftSquareBracket:
case TYPE.LeftCurlyBracket:
level++;
break;
}
length++;
// until balance closing
if (token.balance <= startIdx) {
break;
}
} while (token = getNextToken(length));
return length;
}
// https://drafts.csswg.org/css-syntax/#any-value
// The <any-value> production is identical to <declaration-value>, but also
// allows top-level <semicolon-token> tokens and <delim-token> tokens
// with a value of "!". It represents the entirety of what valid CSS can be in any context.
function anyValue(token, getNextToken) {
if (!token) {
return 0;
}
var startIdx = token.index;
var length = 0;
// The <any-value> production matches any sequence of one or more tokens,
// so long as the sequence ...
scan:
do {
switch (token.type) {
// ... does not contain <bad-string-token>, <bad-url-token>,
case TYPE.BadString:
case TYPE.BadUrl:
break scan;
// ... unmatched <)-token>, <]-token>, or <}-token>,
case TYPE.RightCurlyBracket:
case TYPE.RightParenthesis:
case TYPE.RightSquareBracket:
if (token.balance > token.index || token.balance < startIdx) {
break scan;
}
break;
}
length++;
// until balance closing
if (token.balance <= startIdx) {
break;
}
} while (token = getNextToken(length));
return length;
}
// =========================
// Dimensions
//
function dimension(type) {
return function(token, getNextToken, opts) {
if (token === null || token.type !== TYPE.Dimension) {
return 0;
}
var numberEnd = consumeNumber(token.value, 0);
// check unit
if (type !== null) {
// check for IE postfix hack, i.e. 123px\0 or 123px\9
var reverseSolidusOffset = token.value.indexOf('\\', numberEnd);
var unit = reverseSolidusOffset === -1 || !isPostfixIeHack(token.value, reverseSolidusOffset)
? token.value.substr(numberEnd)
: token.value.substring(numberEnd, reverseSolidusOffset);
if (type.hasOwnProperty(unit.toLowerCase()) === false) {
return 0;
}
}
// check range if specified
if (outOfRange(opts, token.value, numberEnd)) {
return 0;
}
return 1;
};
}
// =========================
// Percentage
//
// §5.5. Percentages: the <percentage> type
// https://drafts.csswg.org/css-values-4/#percentages
function percentage(token, getNextToken, opts) {
// ... corresponds to the <percentage-token> production
if (token === null || token.type !== TYPE.Percentage) {
return 0;
}
// check range if specified
if (outOfRange(opts, token.value, token.value.length - 1)) {
return 0;
}
return 1;
}
// =========================
// Numeric
//
// https://drafts.csswg.org/css-values-4/#numbers
// The value <zero> represents a literal number with the value 0. Expressions that merely
// evaluate to a <number> with the value 0 (for example, calc(0)) do not match <zero>;
// only literal <number-token>s do.
function zero(next) {
if (typeof next !== 'function') {
next = function() {
return 0;
};
}
return function(token, getNextToken, opts) {
if (token !== null && token.type === TYPE.Number) {
if (Number(token.value) === 0) {
return 1;
}
}
return next(token, getNextToken, opts);
};
}
// § 5.3. Real Numbers: the <number> type
// https://drafts.csswg.org/css-values-4/#numbers
// Number values are denoted by <number>, and represent real numbers, possibly with a fractional component.
// ... It corresponds to the <number-token> production
function number(token, getNextToken, opts) {
if (token === null) {
return 0;
}
var numberEnd = consumeNumber(token.value, 0);
var isNumber = numberEnd === token.value.length;
if (!isNumber && !isPostfixIeHack(token.value, numberEnd)) {
return 0;
}
// check range if specified
if (outOfRange(opts, token.value, numberEnd)) {
return 0;
}
return 1;
}
// §5.2. Integers: the <integer> type
// https://drafts.csswg.org/css-values-4/#integers
function integer(token, getNextToken, opts) {
// ... corresponds to a subset of the <number-token> production
if (token === null || token.type !== TYPE.Number) {
return 0;
}
// The first digit of an integer may be immediately preceded by `-` or `+` to indicate the integer’s sign.
var i = token.value.charCodeAt(0) === 0x002B || // U+002B PLUS SIGN (+)
token.value.charCodeAt(0) === 0x002D ? 1 : 0; // U+002D HYPHEN-MINUS (-)
// When written literally, an integer is one or more decimal digits 0 through 9 ...
for (; i < token.value.length; i++) {
if (!isDigit(token.value.charCodeAt(i))) {
return 0;
}
}
// check range if specified
if (outOfRange(opts, token.value, i)) {
return 0;
}
return 1;
}
module.exports = {
// token types
'ident-token': tokenType(TYPE.Ident),
'function-token': tokenType(TYPE.Function),
'at-keyword-token': tokenType(TYPE.AtKeyword),
'hash-token': tokenType(TYPE.Hash),
'string-token': tokenType(TYPE.String),
'bad-string-token': tokenType(TYPE.BadString),
'url-token': tokenType(TYPE.Url),
'bad-url-token': tokenType(TYPE.BadUrl),
'delim-token': tokenType(TYPE.Delim),
'number-token': tokenType(TYPE.Number),
'percentage-token': tokenType(TYPE.Percentage),
'dimension-token': tokenType(TYPE.Dimension),
'whitespace-token': tokenType(TYPE.WhiteSpace),
'CDO-token': tokenType(TYPE.CDO),
'CDC-token': tokenType(TYPE.CDC),
'colon-token': tokenType(TYPE.Colon),
'semicolon-token': tokenType(TYPE.Semicolon),
'comma-token': tokenType(TYPE.Comma),
'[-token': tokenType(TYPE.LeftSquareBracket),
']-token': tokenType(TYPE.RightSquareBracket),
'(-token': tokenType(TYPE.LeftParenthesis),
')-token': tokenType(TYPE.RightParenthesis),
'{-token': tokenType(TYPE.LeftCurlyBracket),
'}-token': tokenType(TYPE.RightCurlyBracket),
// token type aliases
'string': tokenType(TYPE.String),
'ident': tokenType(TYPE.Ident),
// complex types
'custom-ident': customIdent,
'custom-property-name': customPropertyName,
'hex-color': hexColor,
'id-selector': idSelector, // element( <id-selector> )
'an-plus-b': anPlusB,
'urange': urange,
'declaration-value': declarationValue,
'any-value': anyValue,
// dimensions
'dimension': calc(dimension(null)),
'angle': calc(dimension(ANGLE)),
'decibel': calc(dimension(DECIBEL)),
'frequency': calc(dimension(FREQUENCY)),
'flex': calc(dimension(FLEX)),
'length': calc(zero(dimension(LENGTH))),
'resolution': calc(dimension(RESOLUTION)),
'semitones': calc(dimension(SEMITONES)),
'time': calc(dimension(TIME)),
// percentage
'percentage': calc(percentage),
// numeric
'zero': zero(),
'number': calc(number),
'integer': calc(integer),
// old IE stuff
'-ms-legacy-expression': func('expression')
};

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module.exports = {
Lexer: require('./Lexer')
};

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var parse = require('../definition-syntax/parse');
var MATCH = { type: 'Match' };
var MISMATCH = { type: 'Mismatch' };
var DISALLOW_EMPTY = { type: 'DisallowEmpty' };
var LEFTPARENTHESIS = 40; // (
var RIGHTPARENTHESIS = 41; // )
function createCondition(match, thenBranch, elseBranch) {
// reduce node count
if (thenBranch === MATCH && elseBranch === MISMATCH) {
return match;
}
if (match === MATCH && thenBranch === MATCH && elseBranch === MATCH) {
return match;
}
if (match.type === 'If' && match.else === MISMATCH && thenBranch === MATCH) {
thenBranch = match.then;
match = match.match;
}
return {
type: 'If',
match: match,
then: thenBranch,
else: elseBranch
};
}
function isFunctionType(name) {
return (
name.length > 2 &&
name.charCodeAt(name.length - 2) === LEFTPARENTHESIS &&
name.charCodeAt(name.length - 1) === RIGHTPARENTHESIS
);
}
function isEnumCapatible(term) {
return (
term.type === 'Keyword' ||
term.type === 'AtKeyword' ||
term.type === 'Function' ||
term.type === 'Type' && isFunctionType(term.name)
);
}
function buildGroupMatchGraph(combinator, terms, atLeastOneTermMatched) {
switch (combinator) {
case ' ':
// Juxtaposing components means that all of them must occur, in the given order.
//
// a b c
// =
// match a
// then match b
// then match c
// then MATCH
// else MISMATCH
// else MISMATCH
// else MISMATCH
var result = MATCH;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
result = createCondition(
term,
result,
MISMATCH
);
};
return result;
case '|':
// A bar (|) separates two or more alternatives: exactly one of them must occur.
//
// a | b | c
// =
// match a
// then MATCH
// else match b
// then MATCH
// else match c
// then MATCH
// else MISMATCH
var result = MISMATCH;
var map = null;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
// reduce sequence of keywords into a Enum
if (isEnumCapatible(term)) {
if (map === null && i > 0 && isEnumCapatible(terms[i - 1])) {
map = Object.create(null);
result = createCondition(
{
type: 'Enum',
map: map
},
MATCH,
result
);
}
if (map !== null) {
var key = (isFunctionType(term.name) ? term.name.slice(0, -1) : term.name).toLowerCase();
if (key in map === false) {
map[key] = term;
continue;
}
}
}
map = null;
// create a new conditonal node
result = createCondition(
term,
MATCH,
result
);
};
return result;
case '&&':
// A double ampersand (&&) separates two or more components,
// all of which must occur, in any order.
// Use MatchOnce for groups with a large number of terms,
// since &&-groups produces at least N!-node trees
if (terms.length > 5) {
return {
type: 'MatchOnce',
terms: terms,
all: true
};
}
// Use a combination tree for groups with small number of terms
//
// a && b && c
// =
// match a
// then [b && c]
// else match b
// then [a && c]
// else match c
// then [a && b]
// else MISMATCH
//
// a && b
// =
// match a
// then match b
// then MATCH
// else MISMATCH
// else match b
// then match a
// then MATCH
// else MISMATCH
// else MISMATCH
var result = MISMATCH;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
var thenClause;
if (terms.length > 1) {
thenClause = buildGroupMatchGraph(
combinator,
terms.filter(function(newGroupTerm) {
return newGroupTerm !== term;
}),
false
);
} else {
thenClause = MATCH;
}
result = createCondition(
term,
thenClause,
result
);
};
return result;
case '||':
// A double bar (||) separates two or more options:
// one or more of them must occur, in any order.
// Use MatchOnce for groups with a large number of terms,
// since ||-groups produces at least N!-node trees
if (terms.length > 5) {
return {
type: 'MatchOnce',
terms: terms,
all: false
};
}
// Use a combination tree for groups with small number of terms
//
// a || b || c
// =
// match a
// then [b || c]
// else match b
// then [a || c]
// else match c
// then [a || b]
// else MISMATCH
//
// a || b
// =
// match a
// then match b
// then MATCH
// else MATCH
// else match b
// then match a
// then MATCH
// else MATCH
// else MISMATCH
var result = atLeastOneTermMatched ? MATCH : MISMATCH;
for (var i = terms.length - 1; i >= 0; i--) {
var term = terms[i];
var thenClause;
if (terms.length > 1) {
thenClause = buildGroupMatchGraph(
combinator,
terms.filter(function(newGroupTerm) {
return newGroupTerm !== term;
}),
true
);
} else {
thenClause = MATCH;
}
result = createCondition(
term,
thenClause,
result
);
};
return result;
}
}
function buildMultiplierMatchGraph(node) {
var result = MATCH;
var matchTerm = buildMatchGraph(node.term);
if (node.max === 0) {
// disable repeating of empty match to prevent infinite loop
matchTerm = createCondition(
matchTerm,
DISALLOW_EMPTY,
MISMATCH
);
// an occurrence count is not limited, make a cycle;
// to collect more terms on each following matching mismatch
result = createCondition(
matchTerm,
null, // will be a loop
MISMATCH
);
result.then = createCondition(
MATCH,
MATCH,
result // make a loop
);
if (node.comma) {
result.then.else = createCondition(
{ type: 'Comma', syntax: node },
result,
MISMATCH
);
}
} else {
// create a match node chain for [min .. max] interval with optional matches
for (var i = node.min || 1; i <= node.max; i++) {
if (node.comma && result !== MATCH) {
result = createCondition(
{ type: 'Comma', syntax: node },
result,
MISMATCH
);
}
result = createCondition(
matchTerm,
createCondition(
MATCH,
MATCH,
result
),
MISMATCH
);
}
}
if (node.min === 0) {
// allow zero match
result = createCondition(
MATCH,
MATCH,
result
);
} else {
// create a match node chain to collect [0 ... min - 1] required matches
for (var i = 0; i < node.min - 1; i++) {
if (node.comma && result !== MATCH) {
result = createCondition(
{ type: 'Comma', syntax: node },
result,
MISMATCH
);
}
result = createCondition(
matchTerm,
result,
MISMATCH
);
}
}
return result;
}
function buildMatchGraph(node) {
if (typeof node === 'function') {
return {
type: 'Generic',
fn: node
};
}
switch (node.type) {
case 'Group':
var result = buildGroupMatchGraph(
node.combinator,
node.terms.map(buildMatchGraph),
false
);
if (node.disallowEmpty) {
result = createCondition(
result,
DISALLOW_EMPTY,
MISMATCH
);
}
return result;
case 'Multiplier':
return buildMultiplierMatchGraph(node);
case 'Type':
case 'Property':
return {
type: node.type,
name: node.name,
syntax: node
};
case 'Keyword':
return {
type: node.type,
name: node.name.toLowerCase(),
syntax: node
};
case 'AtKeyword':
return {
type: node.type,
name: '@' + node.name.toLowerCase(),
syntax: node
};
case 'Function':
return {
type: node.type,
name: node.name.toLowerCase() + '(',
syntax: node
};
case 'String':
// convert a one char length String to a Token
if (node.value.length === 3) {
return {
type: 'Token',
value: node.value.charAt(1),
syntax: node
};
}
// otherwise use it as is
return {
type: node.type,
value: node.value.substr(1, node.value.length - 2).replace(/\\'/g, '\''),
syntax: node
};
case 'Token':
return {
type: node.type,
value: node.value,
syntax: node
};
case 'Comma':
return {
type: node.type,
syntax: node
};
default:
throw new Error('Unknown node type:', node.type);
}
}
module.exports = {
MATCH: MATCH,
MISMATCH: MISMATCH,
DISALLOW_EMPTY: DISALLOW_EMPTY,
buildMatchGraph: function(syntaxTree, ref) {
if (typeof syntaxTree === 'string') {
syntaxTree = parse(syntaxTree);
}
return {
type: 'MatchGraph',
match: buildMatchGraph(syntaxTree),
syntax: ref || null,
source: syntaxTree
};
}
};

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var hasOwnProperty = Object.prototype.hasOwnProperty;
var matchGraph = require('./match-graph');
var MATCH = matchGraph.MATCH;
var MISMATCH = matchGraph.MISMATCH;
var DISALLOW_EMPTY = matchGraph.DISALLOW_EMPTY;
var TYPE = require('../tokenizer/const').TYPE;
var STUB = 0;
var TOKEN = 1;
var OPEN_SYNTAX = 2;
var CLOSE_SYNTAX = 3;
var EXIT_REASON_MATCH = 'Match';
var EXIT_REASON_MISMATCH = 'Mismatch';
var EXIT_REASON_ITERATION_LIMIT = 'Maximum iteration number exceeded (please fill an issue on https://github.com/csstree/csstree/issues)';
var ITERATION_LIMIT = 15000;
var totalIterationCount = 0;
function reverseList(list) {
var prev = null;
var next = null;
var item = list;
while (item !== null) {
next = item.prev;
item.prev = prev;
prev = item;
item = next;
}
return prev;
}
function areStringsEqualCaseInsensitive(testStr, referenceStr) {
if (testStr.length !== referenceStr.length) {
return false;
}
for (var i = 0; i < testStr.length; i++) {
var testCode = testStr.charCodeAt(i);
var referenceCode = referenceStr.charCodeAt(i);
// testCode.toLowerCase() for U+0041 LATIN CAPITAL LETTER A (A) .. U+005A LATIN CAPITAL LETTER Z (Z).
if (testCode >= 0x0041 && testCode <= 0x005A) {
testCode = testCode | 32;
}
if (testCode !== referenceCode) {
return false;
}
}
return true;
}
function isCommaContextStart(token) {
if (token === null) {
return true;
}
return (
token.type === TYPE.Comma ||
token.type === TYPE.Function ||
token.type === TYPE.LeftParenthesis ||
token.type === TYPE.LeftSquareBracket ||
token.type === TYPE.LeftCurlyBracket ||
token.type === TYPE.Delim
);
}
function isCommaContextEnd(token) {
if (token === null) {
return true;
}
return (
token.type === TYPE.RightParenthesis ||
token.type === TYPE.RightSquareBracket ||
token.type === TYPE.RightCurlyBracket ||
token.type === TYPE.Delim
);
}
function internalMatch(tokens, state, syntaxes) {
function moveToNextToken() {
do {
tokenIndex++;
token = tokenIndex < tokens.length ? tokens[tokenIndex] : null;
} while (token !== null && (token.type === TYPE.WhiteSpace || token.type === TYPE.Comment));
}
function getNextToken(offset) {
var nextIndex = tokenIndex + offset;
return nextIndex < tokens.length ? tokens[nextIndex] : null;
}
function stateSnapshotFromSyntax(nextState, prev) {
return {
nextState: nextState,
matchStack: matchStack,
syntaxStack: syntaxStack,
thenStack: thenStack,
tokenIndex: tokenIndex,
prev: prev
};
}
function pushThenStack(nextState) {
thenStack = {
nextState: nextState,
matchStack: matchStack,
syntaxStack: syntaxStack,
prev: thenStack
};
}
function pushElseStack(nextState) {
elseStack = stateSnapshotFromSyntax(nextState, elseStack);
}
function addTokenToMatch() {
matchStack = {
type: TOKEN,
syntax: state.syntax,
token: token,
prev: matchStack
};
moveToNextToken();
syntaxStash = null;
if (tokenIndex > longestMatch) {
longestMatch = tokenIndex;
}
}
function openSyntax() {
syntaxStack = {
syntax: state.syntax,
opts: state.syntax.opts || (syntaxStack !== null && syntaxStack.opts) || null,
prev: syntaxStack
};
matchStack = {
type: OPEN_SYNTAX,
syntax: state.syntax,
token: matchStack.token,
prev: matchStack
};
}
function closeSyntax() {
if (matchStack.type === OPEN_SYNTAX) {
matchStack = matchStack.prev;
} else {
matchStack = {
type: CLOSE_SYNTAX,
syntax: syntaxStack.syntax,
token: matchStack.token,
prev: matchStack
};
}
syntaxStack = syntaxStack.prev;
}
var syntaxStack = null;
var thenStack = null;
var elseStack = null;
// null – stashing allowed, nothing stashed
// false – stashing disabled, nothing stashed
// anithing else – fail stashable syntaxes, some syntax stashed
var syntaxStash = null;
var iterationCount = 0; // count iterations and prevent infinite loop
var exitReason = null;
var token = null;
var tokenIndex = -1;
var longestMatch = 0;
var matchStack = {
type: STUB,
syntax: null,
token: null,
prev: null
};
moveToNextToken();
while (exitReason === null && ++iterationCount < ITERATION_LIMIT) {
// function mapList(list, fn) {
// var result = [];
// while (list) {
// result.unshift(fn(list));
// list = list.prev;
// }
// return result;
// }
// console.log('--\n',
// '#' + iterationCount,
// require('util').inspect({
// match: mapList(matchStack, x => x.type === TOKEN ? x.token && x.token.value : x.syntax ? ({ [OPEN_SYNTAX]: '<', [CLOSE_SYNTAX]: '</' }[x.type] || x.type) + '!' + x.syntax.name : null),
// token: token && token.value,
// tokenIndex,
// syntax: syntax.type + (syntax.id ? ' #' + syntax.id : '')
// }, { depth: null })
// );
switch (state.type) {
case 'Match':
if (thenStack === null) {
// turn to MISMATCH when some tokens left unmatched
if (token !== null) {
// doesn't mismatch if just one token left and it's an IE hack
if (tokenIndex !== tokens.length - 1 || (token.value !== '\\0' && token.value !== '\\9')) {
state = MISMATCH;
break;
}
}
// break the main loop, return a result - MATCH
exitReason = EXIT_REASON_MATCH;
break;
}
// go to next syntax (`then` branch)
state = thenStack.nextState;
// check match is not empty
if (state === DISALLOW_EMPTY) {
if (thenStack.matchStack === matchStack) {
state = MISMATCH;
break;
} else {
state = MATCH;
}
}
// close syntax if needed
while (thenStack.syntaxStack !== syntaxStack) {
closeSyntax();
}
// pop stack
thenStack = thenStack.prev;
break;
case 'Mismatch':
// when some syntax is stashed
if (syntaxStash !== null && syntaxStash !== false) {
// there is no else branches or a branch reduce match stack
if (elseStack === null || tokenIndex > elseStack.tokenIndex) {
// restore state from the stash
elseStack = syntaxStash;
syntaxStash = false; // disable stashing
}
} else if (elseStack === null) {
// no else branches -> break the main loop
// return a result - MISMATCH
exitReason = EXIT_REASON_MISMATCH;
break;
}
// go to next syntax (`else` branch)
state = elseStack.nextState;
// restore all the rest stack states
thenStack = elseStack.thenStack;
syntaxStack = elseStack.syntaxStack;
matchStack = elseStack.matchStack;
tokenIndex = elseStack.tokenIndex;
token = tokenIndex < tokens.length ? tokens[tokenIndex] : null;
// pop stack
elseStack = elseStack.prev;
break;
case 'MatchGraph':
state = state.match;
break;
case 'If':
// IMPORTANT: else stack push must go first,
// since it stores the state of thenStack before changes
if (state.else !== MISMATCH) {
pushElseStack(state.else);
}
if (state.then !== MATCH) {
pushThenStack(state.then);
}
state = state.match;
break;
case 'MatchOnce':
state = {
type: 'MatchOnceBuffer',
syntax: state,
index: 0,
mask: 0
};
break;
case 'MatchOnceBuffer':
var terms = state.syntax.terms;
if (state.index === terms.length) {
// no matches at all or it's required all terms to be matched
if (state.mask === 0 || state.syntax.all) {
state = MISMATCH;
break;
}
// a partial match is ok
state = MATCH;
break;
}
// all terms are matched
if (state.mask === (1 << terms.length) - 1) {
state = MATCH;
break;
}
for (; state.index < terms.length; state.index++) {
var matchFlag = 1 << state.index;
if ((state.mask & matchFlag) === 0) {
// IMPORTANT: else stack push must go first,
// since it stores the state of thenStack before changes
pushElseStack(state);
pushThenStack({
type: 'AddMatchOnce',
syntax: state.syntax,
mask: state.mask | matchFlag
});
// match
state = terms[state.index++];
break;
}
}
break;
case 'AddMatchOnce':
state = {
type: 'MatchOnceBuffer',
syntax: state.syntax,
index: 0,
mask: state.mask
};
break;
case 'Enum':
if (token !== null) {
var name = token.value.toLowerCase();
// drop \0 and \9 hack from keyword name
if (name.indexOf('\\') !== -1) {
name = name.replace(/\\[09].*$/, '');
}
if (hasOwnProperty.call(state.map, name)) {
state = state.map[name];
break;
}
}
state = MISMATCH;
break;
case 'Generic':
var opts = syntaxStack !== null ? syntaxStack.opts : null;
var lastTokenIndex = tokenIndex + Math.floor(state.fn(token, getNextToken, opts));
if (!isNaN(lastTokenIndex) && lastTokenIndex > tokenIndex) {
while (tokenIndex < lastTokenIndex) {
addTokenToMatch();
}
state = MATCH;
} else {
state = MISMATCH;
}
break;
case 'Type':
case 'Property':
var syntaxDict = state.type === 'Type' ? 'types' : 'properties';
var dictSyntax = hasOwnProperty.call(syntaxes, syntaxDict) ? syntaxes[syntaxDict][state.name] : null;
if (!dictSyntax || !dictSyntax.match) {
throw new Error(
'Bad syntax reference: ' +
(state.type === 'Type'
? '<' + state.name + '>'
: '<\'' + state.name + '\'>')
);
}
// stash a syntax for types with low priority
if (syntaxStash !== false && token !== null && state.type === 'Type') {
var lowPriorityMatching =
// https://drafts.csswg.org/css-values-4/#custom-idents
// When parsing positionally-ambiguous keywords in a property value, a <custom-ident> production
// can only claim the keyword if no other unfulfilled production can claim it.
(state.name === 'custom-ident' && token.type === TYPE.Ident) ||
// https://drafts.csswg.org/css-values-4/#lengths
// ... if a `0` could be parsed as either a <number> or a <length> in a property (such as line-height),
// it must parse as a <number>
(state.name === 'length' && token.value === '0');
if (lowPriorityMatching) {
if (syntaxStash === null) {
syntaxStash = stateSnapshotFromSyntax(state, elseStack);
}
state = MISMATCH;
break;
}
}
openSyntax();
state = dictSyntax.match;
break;
case 'Keyword':
var name = state.name;
if (token !== null) {
var keywordName = token.value;
// drop \0 and \9 hack from keyword name
if (keywordName.indexOf('\\') !== -1) {
keywordName = keywordName.replace(/\\[09].*$/, '');
}
if (areStringsEqualCaseInsensitive(keywordName, name)) {
addTokenToMatch();
state = MATCH;
break;
}
}
state = MISMATCH;
break;
case 'AtKeyword':
case 'Function':
if (token !== null && areStringsEqualCaseInsensitive(token.value, state.name)) {
addTokenToMatch();
state = MATCH;
break;
}
state = MISMATCH;
break;
case 'Token':
if (token !== null && token.value === state.value) {
addTokenToMatch();
state = MATCH;
break;
}
state = MISMATCH;
break;
case 'Comma':
if (token !== null && token.type === TYPE.Comma) {
if (isCommaContextStart(matchStack.token)) {
state = MISMATCH;
} else {
addTokenToMatch();
state = isCommaContextEnd(token) ? MISMATCH : MATCH;
}
} else {
state = isCommaContextStart(matchStack.token) || isCommaContextEnd(token) ? MATCH : MISMATCH;
}
break;
case 'String':
var string = '';
for (var lastTokenIndex = tokenIndex; lastTokenIndex < tokens.length && string.length < state.value.length; lastTokenIndex++) {
string += tokens[lastTokenIndex].value;
}
if (areStringsEqualCaseInsensitive(string, state.value)) {
while (tokenIndex < lastTokenIndex) {
addTokenToMatch();
}
state = MATCH;
} else {
state = MISMATCH;
}
break;
default:
throw new Error('Unknown node type: ' + state.type);
}
}
totalIterationCount += iterationCount;
switch (exitReason) {
case null:
console.warn('[csstree-match] BREAK after ' + ITERATION_LIMIT + ' iterations');
exitReason = EXIT_REASON_ITERATION_LIMIT;
matchStack = null;
break;
case EXIT_REASON_MATCH:
while (syntaxStack !== null) {
closeSyntax();
}
break;
default:
matchStack = null;
}
return {
tokens: tokens,
reason: exitReason,
iterations: iterationCount,
match: matchStack,
longestMatch: longestMatch
};
}
function matchAsList(tokens, matchGraph, syntaxes) {
var matchResult = internalMatch(tokens, matchGraph, syntaxes || {});
if (matchResult.match !== null) {
var item = reverseList(matchResult.match).prev;
matchResult.match = [];
while (item !== null) {
switch (item.type) {
case STUB:
break;
case OPEN_SYNTAX:
case CLOSE_SYNTAX:
matchResult.match.push({
type: item.type,
syntax: item.syntax
});
break;
default:
matchResult.match.push({
token: item.token.value,
node: item.token.node
});
break;
}
item = item.prev;
}
}
return matchResult;
}
function matchAsTree(tokens, matchGraph, syntaxes) {
var matchResult = internalMatch(tokens, matchGraph, syntaxes || {});
if (matchResult.match === null) {
return matchResult;
}
var item = matchResult.match;
var host = matchResult.match = {
syntax: matchGraph.syntax || null,
match: []
};
var hostStack = [host];
// revert a list and start with 2nd item since 1st is a stub item
item = reverseList(item).prev;
// build a tree
while (item !== null) {
switch (item.type) {
case OPEN_SYNTAX:
host.match.push(host = {
syntax: item.syntax,
match: []
});
hostStack.push(host);
break;
case CLOSE_SYNTAX:
hostStack.pop();
host = hostStack[hostStack.length - 1];
break;
default:
host.match.push({
syntax: item.syntax || null,
token: item.token.value,
node: item.token.node
});
}
item = item.prev;
}
return matchResult;
}
module.exports = {
matchAsList: matchAsList,
matchAsTree: matchAsTree,
getTotalIterationCount: function() {
return totalIterationCount;
}
};

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var tokenize = require('../tokenizer');
var TokenStream = require('../common/TokenStream');
var tokenStream = new TokenStream();
var astToTokens = {
decorator: function(handlers) {
var curNode = null;
var prev = { len: 0, node: null };
var nodes = [prev];
var buffer = '';
return {
children: handlers.children,
node: function(node) {
var tmp = curNode;
curNode = node;
handlers.node.call(this, node);
curNode = tmp;
},
chunk: function(chunk) {
buffer += chunk;
if (prev.node !== curNode) {
nodes.push({
len: chunk.length,
node: curNode
});
} else {
prev.len += chunk.length;
}
},
result: function() {
return prepareTokens(buffer, nodes);
}
};
}
};
function prepareTokens(str, nodes) {
var tokens = [];
var nodesOffset = 0;
var nodesIndex = 0;
var currentNode = nodes ? nodes[nodesIndex].node : null;
tokenize(str, tokenStream);
while (!tokenStream.eof) {
if (nodes) {
while (nodesIndex < nodes.length && nodesOffset + nodes[nodesIndex].len <= tokenStream.tokenStart) {
nodesOffset += nodes[nodesIndex++].len;
currentNode = nodes[nodesIndex].node;
}
}
tokens.push({
type: tokenStream.tokenType,
value: tokenStream.getTokenValue(),
index: tokenStream.tokenIndex, // TODO: remove it, temporary solution
balance: tokenStream.balance[tokenStream.tokenIndex], // TODO: remove it, temporary solution
node: currentNode
});
tokenStream.next();
// console.log({ ...tokens[tokens.length - 1], node: undefined });
}
return tokens;
}
module.exports = function(value, syntax) {
if (typeof value === 'string') {
return prepareTokens(value, null);
}
return syntax.generate(value, astToTokens);
};

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assets_old/node_modules/css-tree/lib/lexer/search.js generated vendored Normal file
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var List = require('../common/List');
function getFirstMatchNode(matchNode) {
if ('node' in matchNode) {
return matchNode.node;
}
return getFirstMatchNode(matchNode.match[0]);
}
function getLastMatchNode(matchNode) {
if ('node' in matchNode) {
return matchNode.node;
}
return getLastMatchNode(matchNode.match[matchNode.match.length - 1]);
}
function matchFragments(lexer, ast, match, type, name) {
function findFragments(matchNode) {
if (matchNode.syntax !== null &&
matchNode.syntax.type === type &&
matchNode.syntax.name === name) {
var start = getFirstMatchNode(matchNode);
var end = getLastMatchNode(matchNode);
lexer.syntax.walk(ast, function(node, item, list) {
if (node === start) {
var nodes = new List();
do {
nodes.appendData(item.data);
if (item.data === end) {
break;
}
item = item.next;
} while (item !== null);
fragments.push({
parent: list,
nodes: nodes
});
}
});
}
if (Array.isArray(matchNode.match)) {
matchNode.match.forEach(findFragments);
}
}
var fragments = [];
if (match.matched !== null) {
findFragments(match.matched);
}
return fragments;
}
module.exports = {
matchFragments: matchFragments
};

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assets_old/node_modules/css-tree/lib/lexer/structure.js generated vendored Normal file
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var List = require('../common/List');
var hasOwnProperty = Object.prototype.hasOwnProperty;
function isValidNumber(value) {
// Number.isInteger(value) && value >= 0
return (
typeof value === 'number' &&
isFinite(value) &&
Math.floor(value) === value &&
value >= 0
);
}
function isValidLocation(loc) {
return (
Boolean(loc) &&
isValidNumber(loc.offset) &&
isValidNumber(loc.line) &&
isValidNumber(loc.column)
);
}
function createNodeStructureChecker(type, fields) {
return function checkNode(node, warn) {
if (!node || node.constructor !== Object) {
return warn(node, 'Type of node should be an Object');
}
for (var key in node) {
var valid = true;
if (hasOwnProperty.call(node, key) === false) {
continue;
}
if (key === 'type') {
if (node.type !== type) {
warn(node, 'Wrong node type `' + node.type + '`, expected `' + type + '`');
}
} else if (key === 'loc') {
if (node.loc === null) {
continue;
} else if (node.loc && node.loc.constructor === Object) {
if (typeof node.loc.source !== 'string') {
key += '.source';
} else if (!isValidLocation(node.loc.start)) {
key += '.start';
} else if (!isValidLocation(node.loc.end)) {
key += '.end';
} else {
continue;
}
}
valid = false;
} else if (fields.hasOwnProperty(key)) {
for (var i = 0, valid = false; !valid && i < fields[key].length; i++) {
var fieldType = fields[key][i];
switch (fieldType) {
case String:
valid = typeof node[key] === 'string';
break;
case Boolean:
valid = typeof node[key] === 'boolean';
break;
case null:
valid = node[key] === null;
break;
default:
if (typeof fieldType === 'string') {
valid = node[key] && node[key].type === fieldType;
} else if (Array.isArray(fieldType)) {
valid = node[key] instanceof List;
}
}
}
} else {
warn(node, 'Unknown field `' + key + '` for ' + type + ' node type');
}
if (!valid) {
warn(node, 'Bad value for `' + type + '.' + key + '`');
}
}
for (var key in fields) {
if (hasOwnProperty.call(fields, key) &&
hasOwnProperty.call(node, key) === false) {
warn(node, 'Field `' + type + '.' + key + '` is missed');
}
}
};
}
function processStructure(name, nodeType) {
var structure = nodeType.structure;
var fields = {
type: String,
loc: true
};
var docs = {
type: '"' + name + '"'
};
for (var key in structure) {
if (hasOwnProperty.call(structure, key) === false) {
continue;
}
var docsTypes = [];
var fieldTypes = fields[key] = Array.isArray(structure[key])
? structure[key].slice()
: [structure[key]];
for (var i = 0; i < fieldTypes.length; i++) {
var fieldType = fieldTypes[i];
if (fieldType === String || fieldType === Boolean) {
docsTypes.push(fieldType.name);
} else if (fieldType === null) {
docsTypes.push('null');
} else if (typeof fieldType === 'string') {
docsTypes.push('<' + fieldType + '>');
} else if (Array.isArray(fieldType)) {
docsTypes.push('List'); // TODO: use type enum
} else {
throw new Error('Wrong value `' + fieldType + '` in `' + name + '.' + key + '` structure definition');
}
}
docs[key] = docsTypes.join(' | ');
}
return {
docs: docs,
check: createNodeStructureChecker(name, fields)
};
}
module.exports = {
getStructureFromConfig: function(config) {
var structure = {};
if (config.node) {
for (var name in config.node) {
if (hasOwnProperty.call(config.node, name)) {
var nodeType = config.node[name];
if (nodeType.structure) {
structure[name] = processStructure(name, nodeType);
} else {
throw new Error('Missed `structure` field in `' + name + '` node type definition');
}
}
}
}
return structure;
}
};

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assets_old/node_modules/css-tree/lib/lexer/trace.js generated vendored Normal file
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function getTrace(node) {
function shouldPutToTrace(syntax) {
if (syntax === null) {
return false;
}
return (
syntax.type === 'Type' ||
syntax.type === 'Property' ||
syntax.type === 'Keyword'
);
}
function hasMatch(matchNode) {
if (Array.isArray(matchNode.match)) {
// use for-loop for better perfomance
for (var i = 0; i < matchNode.match.length; i++) {
if (hasMatch(matchNode.match[i])) {
if (shouldPutToTrace(matchNode.syntax)) {
result.unshift(matchNode.syntax);
}
return true;
}
}
} else if (matchNode.node === node) {
result = shouldPutToTrace(matchNode.syntax)
? [matchNode.syntax]
: [];
return true;
}
return false;
}
var result = null;
if (this.matched !== null) {
hasMatch(this.matched);
}
return result;
}
function testNode(match, node, fn) {
var trace = getTrace.call(match, node);
if (trace === null) {
return false;
}
return trace.some(fn);
}
function isType(node, type) {
return testNode(this, node, function(matchNode) {
return matchNode.type === 'Type' && matchNode.name === type;
});
}
function isProperty(node, property) {
return testNode(this, node, function(matchNode) {
return matchNode.type === 'Property' && matchNode.name === property;
});
}
function isKeyword(node) {
return testNode(this, node, function(matchNode) {
return matchNode.type === 'Keyword';
});
}
module.exports = {
getTrace: getTrace,
isType: isType,
isProperty: isProperty,
isKeyword: isKeyword
};

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assets_old/node_modules/css-tree/lib/parser/create.js generated vendored Normal file
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var OffsetToLocation = require('../common/OffsetToLocation');
var SyntaxError = require('../common/SyntaxError');
var TokenStream = require('../common/TokenStream');
var List = require('../common/List');
var tokenize = require('../tokenizer');
var constants = require('../tokenizer/const');
var findWhiteSpaceStart = require('../tokenizer/utils').findWhiteSpaceStart;
var sequence = require('./sequence');
var noop = function() {};
var TYPE = constants.TYPE;
var NAME = constants.NAME;
var WHITESPACE = TYPE.WhiteSpace;
var IDENT = TYPE.Ident;
var FUNCTION = TYPE.Function;
var URL = TYPE.Url;
var HASH = TYPE.Hash;
var PERCENTAGE = TYPE.Percentage;
var NUMBER = TYPE.Number;
var NUMBERSIGN = 0x0023; // U+0023 NUMBER SIGN (#)
var NULL = 0;
function createParseContext(name) {
return function() {
return this[name]();
};
}
function processConfig(config) {
var parserConfig = {
context: {},
scope: {},
atrule: {},
pseudo: {}
};
if (config.parseContext) {
for (var name in config.parseContext) {
switch (typeof config.parseContext[name]) {
case 'function':
parserConfig.context[name] = config.parseContext[name];
break;
case 'string':
parserConfig.context[name] = createParseContext(config.parseContext[name]);
break;
}
}
}
if (config.scope) {
for (var name in config.scope) {
parserConfig.scope[name] = config.scope[name];
}
}
if (config.atrule) {
for (var name in config.atrule) {
var atrule = config.atrule[name];
if (atrule.parse) {
parserConfig.atrule[name] = atrule.parse;
}
}
}
if (config.pseudo) {
for (var name in config.pseudo) {
var pseudo = config.pseudo[name];
if (pseudo.parse) {
parserConfig.pseudo[name] = pseudo.parse;
}
}
}
if (config.node) {
for (var name in config.node) {
parserConfig[name] = config.node[name].parse;
}
}
return parserConfig;
}
module.exports = function createParser(config) {
var parser = {
scanner: new TokenStream(),
locationMap: new OffsetToLocation(),
filename: '<unknown>',
needPositions: false,
onParseError: noop,
onParseErrorThrow: false,
parseAtrulePrelude: true,
parseRulePrelude: true,
parseValue: true,
parseCustomProperty: false,
readSequence: sequence,
createList: function() {
return new List();
},
createSingleNodeList: function(node) {
return new List().appendData(node);
},
getFirstListNode: function(list) {
return list && list.first();
},
getLastListNode: function(list) {
return list.last();
},
parseWithFallback: function(consumer, fallback) {
var startToken = this.scanner.tokenIndex;
try {
return consumer.call(this);
} catch (e) {
if (this.onParseErrorThrow) {
throw e;
}
var fallbackNode = fallback.call(this, startToken);
this.onParseErrorThrow = true;
this.onParseError(e, fallbackNode);
this.onParseErrorThrow = false;
return fallbackNode;
}
},
lookupNonWSType: function(offset) {
do {
var type = this.scanner.lookupType(offset++);
if (type !== WHITESPACE) {
return type;
}
} while (type !== NULL);
return NULL;
},
eat: function(tokenType) {
if (this.scanner.tokenType !== tokenType) {
var offset = this.scanner.tokenStart;
var message = NAME[tokenType] + ' is expected';
// tweak message and offset
switch (tokenType) {
case IDENT:
// when identifier is expected but there is a function or url
if (this.scanner.tokenType === FUNCTION || this.scanner.tokenType === URL) {
offset = this.scanner.tokenEnd - 1;
message = 'Identifier is expected but function found';
} else {
message = 'Identifier is expected';
}
break;
case HASH:
if (this.scanner.isDelim(NUMBERSIGN)) {
this.scanner.next();
offset++;
message = 'Name is expected';
}
break;
case PERCENTAGE:
if (this.scanner.tokenType === NUMBER) {
offset = this.scanner.tokenEnd;
message = 'Percent sign is expected';
}
break;
default:
// when test type is part of another token show error for current position + 1
// e.g. eat(HYPHENMINUS) will fail on "-foo", but pointing on "-" is odd
if (this.scanner.source.charCodeAt(this.scanner.tokenStart) === tokenType) {
offset = offset + 1;
}
}
this.error(message, offset);
}
this.scanner.next();
},
consume: function(tokenType) {
var value = this.scanner.getTokenValue();
this.eat(tokenType);
return value;
},
consumeFunctionName: function() {
var name = this.scanner.source.substring(this.scanner.tokenStart, this.scanner.tokenEnd - 1);
this.eat(FUNCTION);
return name;
},
getLocation: function(start, end) {
if (this.needPositions) {
return this.locationMap.getLocationRange(
start,
end,
this.filename
);
}
return null;
},
getLocationFromList: function(list) {
if (this.needPositions) {
var head = this.getFirstListNode(list);
var tail = this.getLastListNode(list);
return this.locationMap.getLocationRange(
head !== null ? head.loc.start.offset - this.locationMap.startOffset : this.scanner.tokenStart,
tail !== null ? tail.loc.end.offset - this.locationMap.startOffset : this.scanner.tokenStart,
this.filename
);
}
return null;
},
error: function(message, offset) {
var location = typeof offset !== 'undefined' && offset < this.scanner.source.length
? this.locationMap.getLocation(offset)
: this.scanner.eof
? this.locationMap.getLocation(findWhiteSpaceStart(this.scanner.source, this.scanner.source.length - 1))
: this.locationMap.getLocation(this.scanner.tokenStart);
throw new SyntaxError(
message || 'Unexpected input',
this.scanner.source,
location.offset,
location.line,
location.column
);
}
};
config = processConfig(config || {});
for (var key in config) {
parser[key] = config[key];
}
return function(source, options) {
options = options || {};
var context = options.context || 'default';
var ast;
tokenize(source, parser.scanner);
parser.locationMap.setSource(
source,
options.offset,
options.line,
options.column
);
parser.filename = options.filename || '<unknown>';
parser.needPositions = Boolean(options.positions);
parser.onParseError = typeof options.onParseError === 'function' ? options.onParseError : noop;
parser.onParseErrorThrow = false;
parser.parseAtrulePrelude = 'parseAtrulePrelude' in options ? Boolean(options.parseAtrulePrelude) : true;
parser.parseRulePrelude = 'parseRulePrelude' in options ? Boolean(options.parseRulePrelude) : true;
parser.parseValue = 'parseValue' in options ? Boolean(options.parseValue) : true;
parser.parseCustomProperty = 'parseCustomProperty' in options ? Boolean(options.parseCustomProperty) : false;
if (!parser.context.hasOwnProperty(context)) {
throw new Error('Unknown context `' + context + '`');
}
ast = parser.context[context].call(parser, options);
if (!parser.scanner.eof) {
parser.error();
}
return ast;
};
};

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assets_old/node_modules/css-tree/lib/parser/index.js generated vendored Normal file
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var createParser = require('./create');
var config = require('../syntax/config/parser');
module.exports = createParser(config);

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assets_old/node_modules/css-tree/lib/parser/sequence.js generated vendored Normal file
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var TYPE = require('../tokenizer').TYPE;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
module.exports = function readSequence(recognizer) {
var children = this.createList();
var child = null;
var context = {
recognizer: recognizer,
space: null,
ignoreWS: false,
ignoreWSAfter: false
};
this.scanner.skipSC();
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case COMMENT:
this.scanner.next();
continue;
case WHITESPACE:
if (context.ignoreWS) {
this.scanner.next();
} else {
context.space = this.WhiteSpace();
}
continue;
}
child = recognizer.getNode.call(this, context);
if (child === undefined) {
break;
}
if (context.space !== null) {
children.push(context.space);
context.space = null;
}
children.push(child);
if (context.ignoreWSAfter) {
context.ignoreWSAfter = false;
context.ignoreWS = true;
} else {
context.ignoreWS = false;
}
}
return children;
};

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assets_old/node_modules/css-tree/lib/syntax/atrule/font-face.js generated vendored Normal file
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module.exports = {
parse: {
prelude: null,
block: function() {
return this.Block(true);
}
}
};

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assets_old/node_modules/css-tree/lib/syntax/atrule/import.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var STRING = TYPE.String;
var IDENT = TYPE.Ident;
var URL = TYPE.Url;
var FUNCTION = TYPE.Function;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
module.exports = {
parse: {
prelude: function() {
var children = this.createList();
this.scanner.skipSC();
switch (this.scanner.tokenType) {
case STRING:
children.push(this.String());
break;
case URL:
case FUNCTION:
children.push(this.Url());
break;
default:
this.error('String or url() is expected');
}
if (this.lookupNonWSType(0) === IDENT ||
this.lookupNonWSType(0) === LEFTPARENTHESIS) {
children.push(this.WhiteSpace());
children.push(this.MediaQueryList());
}
return children;
},
block: null
}
};

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assets_old/node_modules/css-tree/lib/syntax/atrule/index.js generated vendored Normal file
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module.exports = {
'font-face': require('./font-face'),
'import': require('./import'),
'media': require('./media'),
'page': require('./page'),
'supports': require('./supports')
};

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assets_old/node_modules/css-tree/lib/syntax/atrule/media.js generated vendored Normal file
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module.exports = {
parse: {
prelude: function() {
return this.createSingleNodeList(
this.MediaQueryList()
);
},
block: function() {
return this.Block(false);
}
}
};

12
assets_old/node_modules/css-tree/lib/syntax/atrule/page.js generated vendored Normal file
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module.exports = {
parse: {
prelude: function() {
return this.createSingleNodeList(
this.SelectorList()
);
},
block: function() {
return this.Block(true);
}
}
};

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assets_old/node_modules/css-tree/lib/syntax/atrule/supports.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var IDENT = TYPE.Ident;
var FUNCTION = TYPE.Function;
var COLON = TYPE.Colon;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
function consumeRaw() {
return this.createSingleNodeList(
this.Raw(this.scanner.tokenIndex, null, false)
);
}
function parentheses() {
this.scanner.skipSC();
if (this.scanner.tokenType === IDENT &&
this.lookupNonWSType(1) === COLON) {
return this.createSingleNodeList(
this.Declaration()
);
}
return readSequence.call(this);
}
function readSequence() {
var children = this.createList();
var space = null;
var child;
this.scanner.skipSC();
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case WHITESPACE:
space = this.WhiteSpace();
continue;
case COMMENT:
this.scanner.next();
continue;
case FUNCTION:
child = this.Function(consumeRaw, this.scope.AtrulePrelude);
break;
case IDENT:
child = this.Identifier();
break;
case LEFTPARENTHESIS:
child = this.Parentheses(parentheses, this.scope.AtrulePrelude);
break;
default:
break scan;
}
if (space !== null) {
children.push(space);
space = null;
}
children.push(child);
}
return children;
}
module.exports = {
parse: {
prelude: function() {
var children = readSequence.call(this);
if (this.getFirstListNode(children) === null) {
this.error('Condition is expected');
}
return children;
},
block: function() {
return this.Block(false);
}
}
};

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assets_old/node_modules/css-tree/lib/syntax/config/lexer.js generated vendored Normal file
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var data = require('../../../data');
module.exports = {
generic: true,
types: data.types,
properties: data.properties,
node: require('../node')
};

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assets_old/node_modules/css-tree/lib/syntax/config/mix.js generated vendored Normal file
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var hasOwnProperty = Object.prototype.hasOwnProperty;
var shape = {
generic: true,
types: {},
properties: {},
parseContext: {},
scope: {},
atrule: ['parse'],
pseudo: ['parse'],
node: ['name', 'structure', 'parse', 'generate', 'walkContext']
};
function isObject(value) {
return value && value.constructor === Object;
}
function copy(value) {
if (isObject(value)) {
var res = {};
for (var key in value) {
if (hasOwnProperty.call(value, key)) {
res[key] = value[key];
}
}
return res;
} else {
return value;
}
}
function extend(dest, src) {
for (var key in src) {
if (hasOwnProperty.call(src, key)) {
if (isObject(dest[key])) {
extend(dest[key], copy(src[key]));
} else {
dest[key] = copy(src[key]);
}
}
}
}
function mix(dest, src, shape) {
for (var key in shape) {
if (hasOwnProperty.call(shape, key) === false) {
continue;
}
if (shape[key] === true) {
if (key in src) {
if (hasOwnProperty.call(src, key)) {
dest[key] = copy(src[key]);
}
}
} else if (shape[key]) {
if (isObject(shape[key])) {
var res = {};
extend(res, dest[key]);
extend(res, src[key]);
dest[key] = res;
} else if (Array.isArray(shape[key])) {
var res = {};
var innerShape = shape[key].reduce(function(s, k) {
s[k] = true;
return s;
}, {});
for (var name in dest[key]) {
if (hasOwnProperty.call(dest[key], name)) {
res[name] = {};
if (dest[key] && dest[key][name]) {
mix(res[name], dest[key][name], innerShape);
}
}
}
for (var name in src[key]) {
if (hasOwnProperty.call(src[key], name)) {
if (!res[name]) {
res[name] = {};
}
if (src[key] && src[key][name]) {
mix(res[name], src[key][name], innerShape);
}
}
}
dest[key] = res;
}
}
}
return dest;
}
module.exports = function(dest, src) {
return mix(dest, src, shape);
};

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assets_old/node_modules/css-tree/lib/syntax/config/parser.js generated vendored Normal file
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module.exports = {
parseContext: {
default: 'StyleSheet',
stylesheet: 'StyleSheet',
atrule: 'Atrule',
atrulePrelude: function(options) {
return this.AtrulePrelude(options.atrule ? String(options.atrule) : null);
},
mediaQueryList: 'MediaQueryList',
mediaQuery: 'MediaQuery',
rule: 'Rule',
selectorList: 'SelectorList',
selector: 'Selector',
block: function() {
return this.Block(true);
},
declarationList: 'DeclarationList',
declaration: 'Declaration',
value: 'Value'
},
scope: require('../scope'),
atrule: require('../atrule'),
pseudo: require('../pseudo'),
node: require('../node')
};

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assets_old/node_modules/css-tree/lib/syntax/config/walker.js generated vendored Normal file
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module.exports = {
node: require('../node')
};

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assets_old/node_modules/css-tree/lib/syntax/create.js generated vendored Normal file
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var List = require('../common/List');
var SyntaxError = require('../common/SyntaxError');
var TokenStream = require('../common/TokenStream');
var Lexer = require('../lexer/Lexer');
var definitionSyntax = require('../definition-syntax');
var tokenize = require('../tokenizer');
var createParser = require('../parser/create');
var createGenerator = require('../generator/create');
var createConvertor = require('../convertor/create');
var createWalker = require('../walker/create');
var clone = require('../utils/clone');
var names = require('../utils/names');
var mix = require('./config/mix');
function assign(dest, src) {
for (var key in src) {
dest[key] = src[key];
}
return dest;
}
function createSyntax(config) {
var parse = createParser(config);
var walk = createWalker(config);
var generate = createGenerator(config);
var convert = createConvertor(walk);
var syntax = {
List: List,
SyntaxError: SyntaxError,
TokenStream: TokenStream,
Lexer: Lexer,
vendorPrefix: names.vendorPrefix,
keyword: names.keyword,
property: names.property,
isCustomProperty: names.isCustomProperty,
definitionSyntax: definitionSyntax,
lexer: null,
createLexer: function(config) {
return new Lexer(config, syntax, syntax.lexer.structure);
},
tokenize: tokenize,
parse: parse,
walk: walk,
generate: generate,
find: walk.find,
findLast: walk.findLast,
findAll: walk.findAll,
clone: clone,
fromPlainObject: convert.fromPlainObject,
toPlainObject: convert.toPlainObject,
createSyntax: function(config) {
return createSyntax(mix({}, config));
},
fork: function(extension) {
var base = mix({}, config); // copy of config
return createSyntax(
typeof extension === 'function'
? extension(base, assign)
: mix(base, extension)
);
}
};
syntax.lexer = new Lexer({
generic: true,
types: config.types,
properties: config.properties,
node: config.node
}, syntax);
return syntax;
};
exports.create = function(config) {
return createSyntax(mix({}, config));
};

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assets_old/node_modules/css-tree/lib/syntax/function/element.js generated vendored Normal file
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// https://drafts.csswg.org/css-images-4/#element-notation
// https://developer.mozilla.org/en-US/docs/Web/CSS/element
module.exports = function() {
this.scanner.skipSC();
var children = this.createSingleNodeList(
this.IdSelector()
);
this.scanner.skipSC();
return children;
};

7
assets_old/node_modules/css-tree/lib/syntax/function/expression.js generated vendored Normal file
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// legacy IE function
// expression( <any-value> )
module.exports = function() {
return this.createSingleNodeList(
this.Raw(this.scanner.tokenIndex, null, false)
);
};

26
assets_old/node_modules/css-tree/lib/syntax/function/var.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var rawMode = require('../node/Raw').mode;
var COMMA = TYPE.Comma;
// var( <ident> , <value>? )
module.exports = function() {
var children = this.createList();
this.scanner.skipSC();
// NOTE: Don't check more than a first argument is an ident, rest checks are for lexer
children.push(this.Identifier());
this.scanner.skipSC();
if (this.scanner.tokenType === COMMA) {
children.push(this.Operator());
children.push(this.parseCustomProperty
? this.Value(null)
: this.Raw(this.scanner.tokenIndex, rawMode.exclamationMarkOrSemicolon, false)
);
}
return children;
};

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assets_old/node_modules/css-tree/lib/syntax/index.js generated vendored Normal file
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function merge() {
var dest = {};
for (var i = 0; i < arguments.length; i++) {
var src = arguments[i];
for (var key in src) {
dest[key] = src[key];
}
}
return dest;
}
module.exports = require('./create').create(
merge(
require('./config/lexer'),
require('./config/parser'),
require('./config/walker')
)
);

297
assets_old/node_modules/css-tree/lib/syntax/node/AnPlusB.js generated vendored Normal file
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var cmpChar = require('../../tokenizer').cmpChar;
var isDigit = require('../../tokenizer').isDigit;
var TYPE = require('../../tokenizer').TYPE;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var IDENT = TYPE.Ident;
var NUMBER = TYPE.Number;
var DIMENSION = TYPE.Dimension;
var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-)
var N = 0x006E; // U+006E LATIN SMALL LETTER N (n)
var DISALLOW_SIGN = true;
var ALLOW_SIGN = false;
function checkInteger(offset, disallowSign) {
var pos = this.scanner.tokenStart + offset;
var code = this.scanner.source.charCodeAt(pos);
if (code === PLUSSIGN || code === HYPHENMINUS) {
if (disallowSign) {
this.error('Number sign is not allowed');
}
pos++;
}
for (; pos < this.scanner.tokenEnd; pos++) {
if (!isDigit(this.scanner.source.charCodeAt(pos))) {
this.error('Integer is expected', pos);
}
}
}
function checkTokenIsInteger(disallowSign) {
return checkInteger.call(this, 0, disallowSign);
}
function expectCharCode(offset, code) {
if (!cmpChar(this.scanner.source, this.scanner.tokenStart + offset, code)) {
var msg = '';
switch (code) {
case N:
msg = 'N is expected';
break;
case HYPHENMINUS:
msg = 'HyphenMinus is expected';
break;
}
this.error(msg, this.scanner.tokenStart + offset);
}
}
// ... <signed-integer>
// ... ['+' | '-'] <signless-integer>
function consumeB() {
var offset = 0;
var sign = 0;
var type = this.scanner.tokenType;
while (type === WHITESPACE || type === COMMENT) {
type = this.scanner.lookupType(++offset);
}
if (type !== NUMBER) {
if (this.scanner.isDelim(PLUSSIGN, offset) ||
this.scanner.isDelim(HYPHENMINUS, offset)) {
sign = this.scanner.isDelim(PLUSSIGN, offset) ? PLUSSIGN : HYPHENMINUS;
do {
type = this.scanner.lookupType(++offset);
} while (type === WHITESPACE || type === COMMENT);
if (type !== NUMBER) {
this.scanner.skip(offset);
checkTokenIsInteger.call(this, DISALLOW_SIGN);
}
} else {
return null;
}
}
if (offset > 0) {
this.scanner.skip(offset);
}
if (sign === 0) {
type = this.scanner.source.charCodeAt(this.scanner.tokenStart);
if (type !== PLUSSIGN && type !== HYPHENMINUS) {
this.error('Number sign is expected');
}
}
checkTokenIsInteger.call(this, sign !== 0);
return sign === HYPHENMINUS ? '-' + this.consume(NUMBER) : this.consume(NUMBER);
}
// An+B microsyntax https://www.w3.org/TR/css-syntax-3/#anb
module.exports = {
name: 'AnPlusB',
structure: {
a: [String, null],
b: [String, null]
},
parse: function() {
/* eslint-disable brace-style*/
var start = this.scanner.tokenStart;
var a = null;
var b = null;
// <integer>
if (this.scanner.tokenType === NUMBER) {
checkTokenIsInteger.call(this, ALLOW_SIGN);
b = this.consume(NUMBER);
}
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
// -n- <signless-integer>
// <dashndashdigit-ident>
else if (this.scanner.tokenType === IDENT && cmpChar(this.scanner.source, this.scanner.tokenStart, HYPHENMINUS)) {
a = '-1';
expectCharCode.call(this, 1, N);
switch (this.scanner.getTokenLength()) {
// -n
// -n <signed-integer>
// -n ['+' | '-'] <signless-integer>
case 2:
this.scanner.next();
b = consumeB.call(this);
break;
// -n- <signless-integer>
case 3:
expectCharCode.call(this, 2, HYPHENMINUS);
this.scanner.next();
this.scanner.skipSC();
checkTokenIsInteger.call(this, DISALLOW_SIGN);
b = '-' + this.consume(NUMBER);
break;
// <dashndashdigit-ident>
default:
expectCharCode.call(this, 2, HYPHENMINUS);
checkInteger.call(this, 3, DISALLOW_SIGN);
this.scanner.next();
b = this.scanner.substrToCursor(start + 2);
}
}
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
// '+'? n- <signless-integer>
// '+'? <ndashdigit-ident>
else if (this.scanner.tokenType === IDENT || (this.scanner.isDelim(PLUSSIGN) && this.scanner.lookupType(1) === IDENT)) {
var sign = 0;
a = '1';
// just ignore a plus
if (this.scanner.isDelim(PLUSSIGN)) {
sign = 1;
this.scanner.next();
}
expectCharCode.call(this, 0, N);
switch (this.scanner.getTokenLength()) {
// '+'? n
// '+'? n <signed-integer>
// '+'? n ['+' | '-'] <signless-integer>
case 1:
this.scanner.next();
b = consumeB.call(this);
break;
// '+'? n- <signless-integer>
case 2:
expectCharCode.call(this, 1, HYPHENMINUS);
this.scanner.next();
this.scanner.skipSC();
checkTokenIsInteger.call(this, DISALLOW_SIGN);
b = '-' + this.consume(NUMBER);
break;
// '+'? <ndashdigit-ident>
default:
expectCharCode.call(this, 1, HYPHENMINUS);
checkInteger.call(this, 2, DISALLOW_SIGN);
this.scanner.next();
b = this.scanner.substrToCursor(start + sign + 1);
}
}
// <ndashdigit-dimension>
// <ndash-dimension> <signless-integer>
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
else if (this.scanner.tokenType === DIMENSION) {
var code = this.scanner.source.charCodeAt(this.scanner.tokenStart);
var sign = code === PLUSSIGN || code === HYPHENMINUS;
for (var i = this.scanner.tokenStart + sign; i < this.scanner.tokenEnd; i++) {
if (!isDigit(this.scanner.source.charCodeAt(i))) {
break;
}
}
if (i === this.scanner.tokenStart + sign) {
this.error('Integer is expected', this.scanner.tokenStart + sign);
}
expectCharCode.call(this, i - this.scanner.tokenStart, N);
a = this.scanner.source.substring(start, i);
// <n-dimension>
// <n-dimension> <signed-integer>
// <n-dimension> ['+' | '-'] <signless-integer>
if (i + 1 === this.scanner.tokenEnd) {
this.scanner.next();
b = consumeB.call(this);
} else {
expectCharCode.call(this, i - this.scanner.tokenStart + 1, HYPHENMINUS);
// <ndash-dimension> <signless-integer>
if (i + 2 === this.scanner.tokenEnd) {
this.scanner.next();
this.scanner.skipSC();
checkTokenIsInteger.call(this, DISALLOW_SIGN);
b = '-' + this.consume(NUMBER);
}
// <ndashdigit-dimension>
else {
checkInteger.call(this, i - this.scanner.tokenStart + 2, DISALLOW_SIGN);
this.scanner.next();
b = this.scanner.substrToCursor(i + 1);
}
}
} else {
this.error();
}
if (a !== null && a.charCodeAt(0) === PLUSSIGN) {
a = a.substr(1);
}
if (b !== null && b.charCodeAt(0) === PLUSSIGN) {
b = b.substr(1);
}
return {
type: 'AnPlusB',
loc: this.getLocation(start, this.scanner.tokenStart),
a: a,
b: b
};
},
generate: function(node) {
var a = node.a !== null && node.a !== undefined;
var b = node.b !== null && node.b !== undefined;
if (a) {
this.chunk(
node.a === '+1' ? '+n' : // eslint-disable-line operator-linebreak, indent
node.a === '1' ? 'n' : // eslint-disable-line operator-linebreak, indent
node.a === '-1' ? '-n' : // eslint-disable-line operator-linebreak, indent
node.a + 'n' // eslint-disable-line operator-linebreak, indent
);
if (b) {
b = String(node.b);
if (b.charAt(0) === '-' || b.charAt(0) === '+') {
this.chunk(b.charAt(0));
this.chunk(b.substr(1));
} else {
this.chunk('+');
this.chunk(b);
}
}
} else {
this.chunk(String(node.b));
}
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Atrule.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var rawMode = require('./Raw').mode;
var ATKEYWORD = TYPE.AtKeyword;
var SEMICOLON = TYPE.Semicolon;
var LEFTCURLYBRACKET = TYPE.LeftCurlyBracket;
var RIGHTCURLYBRACKET = TYPE.RightCurlyBracket;
function consumeRaw(startToken) {
return this.Raw(startToken, rawMode.leftCurlyBracketOrSemicolon, true);
}
function isDeclarationBlockAtrule() {
for (var offset = 1, type; type = this.scanner.lookupType(offset); offset++) {
if (type === RIGHTCURLYBRACKET) {
return true;
}
if (type === LEFTCURLYBRACKET ||
type === ATKEYWORD) {
return false;
}
}
return false;
}
module.exports = {
name: 'Atrule',
structure: {
name: String,
prelude: ['AtrulePrelude', 'Raw', null],
block: ['Block', null]
},
parse: function() {
var start = this.scanner.tokenStart;
var name;
var nameLowerCase;
var prelude = null;
var block = null;
this.eat(ATKEYWORD);
name = this.scanner.substrToCursor(start + 1);
nameLowerCase = name.toLowerCase();
this.scanner.skipSC();
// parse prelude
if (this.scanner.eof === false &&
this.scanner.tokenType !== LEFTCURLYBRACKET &&
this.scanner.tokenType !== SEMICOLON) {
if (this.parseAtrulePrelude) {
prelude = this.parseWithFallback(this.AtrulePrelude.bind(this, name), consumeRaw);
// turn empty AtrulePrelude into null
if (prelude.type === 'AtrulePrelude' && prelude.children.head === null) {
prelude = null;
}
} else {
prelude = consumeRaw.call(this, this.scanner.tokenIndex);
}
this.scanner.skipSC();
}
switch (this.scanner.tokenType) {
case SEMICOLON:
this.scanner.next();
break;
case LEFTCURLYBRACKET:
if (this.atrule.hasOwnProperty(nameLowerCase) &&
typeof this.atrule[nameLowerCase].block === 'function') {
block = this.atrule[nameLowerCase].block.call(this);
} else {
// TODO: should consume block content as Raw?
block = this.Block(isDeclarationBlockAtrule.call(this));
}
break;
}
return {
type: 'Atrule',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
prelude: prelude,
block: block
};
},
generate: function(node) {
this.chunk('@');
this.chunk(node.name);
if (node.prelude !== null) {
this.chunk(' ');
this.node(node.prelude);
}
if (node.block) {
this.node(node.block);
} else {
this.chunk(';');
}
},
walkContext: 'atrule'
};

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assets_old/node_modules/css-tree/lib/syntax/node/AtrulePrelude.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var SEMICOLON = TYPE.Semicolon;
var LEFTCURLYBRACKET = TYPE.LeftCurlyBracket;
module.exports = {
name: 'AtrulePrelude',
structure: {
children: [[]]
},
parse: function(name) {
var children = null;
if (name !== null) {
name = name.toLowerCase();
}
this.scanner.skipSC();
if (this.atrule.hasOwnProperty(name) &&
typeof this.atrule[name].prelude === 'function') {
// custom consumer
children = this.atrule[name].prelude.call(this);
} else {
// default consumer
children = this.readSequence(this.scope.AtrulePrelude);
}
this.scanner.skipSC();
if (this.scanner.eof !== true &&
this.scanner.tokenType !== LEFTCURLYBRACKET &&
this.scanner.tokenType !== SEMICOLON) {
this.error('Semicolon or block is expected');
}
if (children === null) {
children = this.createList();
}
return {
type: 'AtrulePrelude',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node);
},
walkContext: 'atrulePrelude'
};

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assets_old/node_modules/css-tree/lib/syntax/node/AttributeSelector.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var STRING = TYPE.String;
var COLON = TYPE.Colon;
var LEFTSQUAREBRACKET = TYPE.LeftSquareBracket;
var RIGHTSQUAREBRACKET = TYPE.RightSquareBracket;
var DOLLARSIGN = 0x0024; // U+0024 DOLLAR SIGN ($)
var ASTERISK = 0x002A; // U+002A ASTERISK (*)
var EQUALSSIGN = 0x003D; // U+003D EQUALS SIGN (=)
var CIRCUMFLEXACCENT = 0x005E; // U+005E (^)
var VERTICALLINE = 0x007C; // U+007C VERTICAL LINE (|)
var TILDE = 0x007E; // U+007E TILDE (~)
function getAttributeName() {
if (this.scanner.eof) {
this.error('Unexpected end of input');
}
var start = this.scanner.tokenStart;
var expectIdent = false;
var checkColon = true;
if (this.scanner.isDelim(ASTERISK)) {
expectIdent = true;
checkColon = false;
this.scanner.next();
} else if (!this.scanner.isDelim(VERTICALLINE)) {
this.eat(IDENT);
}
if (this.scanner.isDelim(VERTICALLINE)) {
if (this.scanner.source.charCodeAt(this.scanner.tokenStart + 1) !== EQUALSSIGN) {
this.scanner.next();
this.eat(IDENT);
} else if (expectIdent) {
this.error('Identifier is expected', this.scanner.tokenEnd);
}
} else if (expectIdent) {
this.error('Vertical line is expected');
}
if (checkColon && this.scanner.tokenType === COLON) {
this.scanner.next();
this.eat(IDENT);
}
return {
type: 'Identifier',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start)
};
}
function getOperator() {
var start = this.scanner.tokenStart;
var code = this.scanner.source.charCodeAt(start);
if (code !== EQUALSSIGN && // =
code !== TILDE && // ~=
code !== CIRCUMFLEXACCENT && // ^=
code !== DOLLARSIGN && // $=
code !== ASTERISK && // *=
code !== VERTICALLINE // |=
) {
this.error('Attribute selector (=, ~=, ^=, $=, *=, |=) is expected');
}
this.scanner.next();
if (code !== EQUALSSIGN) {
if (!this.scanner.isDelim(EQUALSSIGN)) {
this.error('Equal sign is expected');
}
this.scanner.next();
}
return this.scanner.substrToCursor(start);
}
// '[' <wq-name> ']'
// '[' <wq-name> <attr-matcher> [ <string-token> | <ident-token> ] <attr-modifier>? ']'
module.exports = {
name: 'AttributeSelector',
structure: {
name: 'Identifier',
matcher: [String, null],
value: ['String', 'Identifier', null],
flags: [String, null]
},
parse: function() {
var start = this.scanner.tokenStart;
var name;
var matcher = null;
var value = null;
var flags = null;
this.eat(LEFTSQUAREBRACKET);
this.scanner.skipSC();
name = getAttributeName.call(this);
this.scanner.skipSC();
if (this.scanner.tokenType !== RIGHTSQUAREBRACKET) {
// avoid case `[name i]`
if (this.scanner.tokenType !== IDENT) {
matcher = getOperator.call(this);
this.scanner.skipSC();
value = this.scanner.tokenType === STRING
? this.String()
: this.Identifier();
this.scanner.skipSC();
}
// attribute flags
if (this.scanner.tokenType === IDENT) {
flags = this.scanner.getTokenValue();
this.scanner.next();
this.scanner.skipSC();
}
}
this.eat(RIGHTSQUAREBRACKET);
return {
type: 'AttributeSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
matcher: matcher,
value: value,
flags: flags
};
},
generate: function(node) {
var flagsPrefix = ' ';
this.chunk('[');
this.node(node.name);
if (node.matcher !== null) {
this.chunk(node.matcher);
if (node.value !== null) {
this.node(node.value);
// space between string and flags is not required
if (node.value.type === 'String') {
flagsPrefix = '';
}
}
}
if (node.flags !== null) {
this.chunk(flagsPrefix);
this.chunk(node.flags);
}
this.chunk(']');
}
};

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var TYPE = require('../../tokenizer').TYPE;
var rawMode = require('./Raw').mode;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var SEMICOLON = TYPE.Semicolon;
var ATKEYWORD = TYPE.AtKeyword;
var LEFTCURLYBRACKET = TYPE.LeftCurlyBracket;
var RIGHTCURLYBRACKET = TYPE.RightCurlyBracket;
function consumeRaw(startToken) {
return this.Raw(startToken, null, true);
}
function consumeRule() {
return this.parseWithFallback(this.Rule, consumeRaw);
}
function consumeRawDeclaration(startToken) {
return this.Raw(startToken, rawMode.semicolonIncluded, true);
}
function consumeDeclaration() {
if (this.scanner.tokenType === SEMICOLON) {
return consumeRawDeclaration.call(this, this.scanner.tokenIndex);
}
var node = this.parseWithFallback(this.Declaration, consumeRawDeclaration);
if (this.scanner.tokenType === SEMICOLON) {
this.scanner.next();
}
return node;
}
module.exports = {
name: 'Block',
structure: {
children: [[
'Atrule',
'Rule',
'Declaration'
]]
},
parse: function(isDeclaration) {
var consumer = isDeclaration ? consumeDeclaration : consumeRule;
var start = this.scanner.tokenStart;
var children = this.createList();
this.eat(LEFTCURLYBRACKET);
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case RIGHTCURLYBRACKET:
break scan;
case WHITESPACE:
case COMMENT:
this.scanner.next();
break;
case ATKEYWORD:
children.push(this.parseWithFallback(this.Atrule, consumeRaw));
break;
default:
children.push(consumer.call(this));
}
}
if (!this.scanner.eof) {
this.eat(RIGHTCURLYBRACKET);
}
return {
type: 'Block',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.chunk('{');
this.children(node, function(prev) {
if (prev.type === 'Declaration') {
this.chunk(';');
}
});
this.chunk('}');
},
walkContext: 'block'
};

34
assets_old/node_modules/css-tree/lib/syntax/node/Brackets.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var LEFTSQUAREBRACKET = TYPE.LeftSquareBracket;
var RIGHTSQUAREBRACKET = TYPE.RightSquareBracket;
module.exports = {
name: 'Brackets',
structure: {
children: [[]]
},
parse: function(readSequence, recognizer) {
var start = this.scanner.tokenStart;
var children = null;
this.eat(LEFTSQUAREBRACKET);
children = readSequence.call(this, recognizer);
if (!this.scanner.eof) {
this.eat(RIGHTSQUAREBRACKET);
}
return {
type: 'Brackets',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.chunk('[');
this.children(node);
this.chunk(']');
}
};

19
assets_old/node_modules/css-tree/lib/syntax/node/CDC.js generated vendored Normal file
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var CDC = require('../../tokenizer').TYPE.CDC;
module.exports = {
name: 'CDC',
structure: [],
parse: function() {
var start = this.scanner.tokenStart;
this.eat(CDC); // -->
return {
type: 'CDC',
loc: this.getLocation(start, this.scanner.tokenStart)
};
},
generate: function() {
this.chunk('-->');
}
};

19
assets_old/node_modules/css-tree/lib/syntax/node/CDO.js generated vendored Normal file
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var CDO = require('../../tokenizer').TYPE.CDO;
module.exports = {
name: 'CDO',
structure: [],
parse: function() {
var start = this.scanner.tokenStart;
this.eat(CDO); // <!--
return {
type: 'CDO',
loc: this.getLocation(start, this.scanner.tokenStart)
};
},
generate: function() {
this.chunk('<!--');
}
};

29
assets_old/node_modules/css-tree/lib/syntax/node/ClassSelector.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var FULLSTOP = 0x002E; // U+002E FULL STOP (.)
// '.' ident
module.exports = {
name: 'ClassSelector',
structure: {
name: String
},
parse: function() {
if (!this.scanner.isDelim(FULLSTOP)) {
this.error('Full stop is expected');
}
this.scanner.next();
return {
type: 'ClassSelector',
loc: this.getLocation(this.scanner.tokenStart - 1, this.scanner.tokenEnd),
name: this.consume(IDENT)
};
},
generate: function(node) {
this.chunk('.');
this.chunk(node.name);
}
};

55
assets_old/node_modules/css-tree/lib/syntax/node/Combinator.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
var SOLIDUS = 0x002F; // U+002F SOLIDUS (/)
var GREATERTHANSIGN = 0x003E; // U+003E GREATER-THAN SIGN (>)
var TILDE = 0x007E; // U+007E TILDE (~)
// + | > | ~ | /deep/
module.exports = {
name: 'Combinator',
structure: {
name: String
},
parse: function() {
var start = this.scanner.tokenStart;
var code = this.scanner.source.charCodeAt(this.scanner.tokenStart);
switch (code) {
case GREATERTHANSIGN:
case PLUSSIGN:
case TILDE:
this.scanner.next();
break;
case SOLIDUS:
this.scanner.next();
if (this.scanner.tokenType !== IDENT || this.scanner.lookupValue(0, 'deep') === false) {
this.error('Identifier `deep` is expected');
}
this.scanner.next();
if (!this.scanner.isDelim(SOLIDUS)) {
this.error('Solidus is expected');
}
this.scanner.next();
break;
default:
this.error('Combinator is expected');
}
return {
type: 'Combinator',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.name);
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Comment.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var COMMENT = TYPE.Comment;
var ASTERISK = 0x002A; // U+002A ASTERISK (*)
var SOLIDUS = 0x002F; // U+002F SOLIDUS (/)
// '/*' .* '*/'
module.exports = {
name: 'Comment',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
var end = this.scanner.tokenEnd;
this.eat(COMMENT);
if ((end - start + 2) >= 2 &&
this.scanner.source.charCodeAt(end - 2) === ASTERISK &&
this.scanner.source.charCodeAt(end - 1) === SOLIDUS) {
end -= 2;
}
return {
type: 'Comment',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.source.substring(start + 2, end)
};
},
generate: function(node) {
this.chunk('/*');
this.chunk(node.value);
this.chunk('*/');
}
};

153
assets_old/node_modules/css-tree/lib/syntax/node/Declaration.js generated vendored Normal file
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var isCustomProperty = require('../../utils/names').isCustomProperty;
var TYPE = require('../../tokenizer').TYPE;
var rawMode = require('./Raw').mode;
var IDENT = TYPE.Ident;
var HASH = TYPE.Hash;
var COLON = TYPE.Colon;
var SEMICOLON = TYPE.Semicolon;
var DELIM = TYPE.Delim;
var EXCLAMATIONMARK = 0x0021; // U+0021 EXCLAMATION MARK (!)
var NUMBERSIGN = 0x0023; // U+0023 NUMBER SIGN (#)
var DOLLARSIGN = 0x0024; // U+0024 DOLLAR SIGN ($)
var AMPERSAND = 0x0026; // U+0026 ANPERSAND (&)
var ASTERISK = 0x002A; // U+002A ASTERISK (*)
var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
var SOLIDUS = 0x002F; // U+002F SOLIDUS (/)
function consumeValueRaw(startToken) {
return this.Raw(startToken, rawMode.exclamationMarkOrSemicolon, true);
}
function consumeCustomPropertyRaw(startToken) {
return this.Raw(startToken, rawMode.exclamationMarkOrSemicolon, false);
}
function consumeValue() {
var startValueToken = this.scanner.tokenIndex;
var value = this.Value();
if (value.type !== 'Raw' &&
this.scanner.eof === false &&
this.scanner.tokenType !== SEMICOLON &&
this.scanner.isDelim(EXCLAMATIONMARK) === false &&
this.scanner.isBalanceEdge(startValueToken) === false) {
this.error();
}
return value;
}
module.exports = {
name: 'Declaration',
structure: {
important: [Boolean, String],
property: String,
value: ['Value', 'Raw']
},
parse: function() {
var start = this.scanner.tokenStart;
var startToken = this.scanner.tokenIndex;
var property = readProperty.call(this);
var customProperty = isCustomProperty(property);
var parseValue = customProperty ? this.parseCustomProperty : this.parseValue;
var consumeRaw = customProperty ? consumeCustomPropertyRaw : consumeValueRaw;
var important = false;
var value;
this.scanner.skipSC();
this.eat(COLON);
if (!customProperty) {
this.scanner.skipSC();
}
if (parseValue) {
value = this.parseWithFallback(consumeValue, consumeRaw);
} else {
value = consumeRaw.call(this, this.scanner.tokenIndex);
}
if (this.scanner.isDelim(EXCLAMATIONMARK)) {
important = getImportant.call(this);
this.scanner.skipSC();
}
// Do not include semicolon to range per spec
// https://drafts.csswg.org/css-syntax/#declaration-diagram
if (this.scanner.eof === false &&
this.scanner.tokenType !== SEMICOLON &&
this.scanner.isBalanceEdge(startToken) === false) {
this.error();
}
return {
type: 'Declaration',
loc: this.getLocation(start, this.scanner.tokenStart),
important: important,
property: property,
value: value
};
},
generate: function(node) {
this.chunk(node.property);
this.chunk(':');
this.node(node.value);
if (node.important) {
this.chunk(node.important === true ? '!important' : '!' + node.important);
}
},
walkContext: 'declaration'
};
function readProperty() {
var start = this.scanner.tokenStart;
var prefix = 0;
// hacks
if (this.scanner.tokenType === DELIM) {
switch (this.scanner.source.charCodeAt(this.scanner.tokenStart)) {
case ASTERISK:
case DOLLARSIGN:
case PLUSSIGN:
case NUMBERSIGN:
case AMPERSAND:
this.scanner.next();
break;
// TODO: not sure we should support this hack
case SOLIDUS:
this.scanner.next();
if (this.scanner.isDelim(SOLIDUS)) {
this.scanner.next();
}
break;
}
}
if (prefix) {
this.scanner.skip(prefix);
}
if (this.scanner.tokenType === HASH) {
this.eat(HASH);
} else {
this.eat(IDENT);
}
return this.scanner.substrToCursor(start);
}
// ! ws* important
function getImportant() {
this.eat(DELIM);
this.scanner.skipSC();
var important = this.consume(IDENT);
// store original value in case it differ from `important`
// for better original source restoring and hacks like `!ie` support
return important === 'important' ? true : important;
}

49
assets_old/node_modules/css-tree/lib/syntax/node/DeclarationList.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var rawMode = require('./Raw').mode;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var SEMICOLON = TYPE.Semicolon;
function consumeRaw(startToken) {
return this.Raw(startToken, rawMode.semicolonIncluded, true);
}
module.exports = {
name: 'DeclarationList',
structure: {
children: [[
'Declaration'
]]
},
parse: function() {
var children = this.createList();
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case WHITESPACE:
case COMMENT:
case SEMICOLON:
this.scanner.next();
break;
default:
children.push(this.parseWithFallback(this.Declaration, consumeRaw));
}
}
return {
type: 'DeclarationList',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node, function(prev) {
if (prev.type === 'Declaration') {
this.chunk(';');
}
});
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Dimension.js generated vendored Normal file
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var consumeNumber = require('../../tokenizer/utils').consumeNumber;
var TYPE = require('../../tokenizer').TYPE;
var DIMENSION = TYPE.Dimension;
module.exports = {
name: 'Dimension',
structure: {
value: String,
unit: String
},
parse: function() {
var start = this.scanner.tokenStart;
var numberEnd = consumeNumber(this.scanner.source, start);
this.eat(DIMENSION);
return {
type: 'Dimension',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.source.substring(start, numberEnd),
unit: this.scanner.source.substring(numberEnd, this.scanner.tokenStart)
};
},
generate: function(node) {
this.chunk(node.value);
this.chunk(node.unit);
}
};

40
assets_old/node_modules/css-tree/lib/syntax/node/Function.js generated vendored Normal file
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@ -0,0 +1,40 @@
var TYPE = require('../../tokenizer').TYPE;
var RIGHTPARENTHESIS = TYPE.RightParenthesis;
// <function-token> <sequence> )
module.exports = {
name: 'Function',
structure: {
name: String,
children: [[]]
},
parse: function(readSequence, recognizer) {
var start = this.scanner.tokenStart;
var name = this.consumeFunctionName();
var nameLowerCase = name.toLowerCase();
var children;
children = recognizer.hasOwnProperty(nameLowerCase)
? recognizer[nameLowerCase].call(this, recognizer)
: readSequence.call(this, recognizer);
if (!this.scanner.eof) {
this.eat(RIGHTPARENTHESIS);
}
return {
type: 'Function',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
children: children
};
},
generate: function(node) {
this.chunk(node.name);
this.chunk('(');
this.children(node);
this.chunk(')');
},
walkContext: 'function'
};

26
assets_old/node_modules/css-tree/lib/syntax/node/HexColor.js generated vendored Normal file
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@ -0,0 +1,26 @@
var TYPE = require('../../tokenizer').TYPE;
var HASH = TYPE.Hash;
// '#' ident
module.exports = {
name: 'HexColor',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
this.eat(HASH);
return {
type: 'HexColor',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.substrToCursor(start + 1)
};
},
generate: function(node) {
this.chunk('#');
this.chunk(node.value);
}
};

27
assets_old/node_modules/css-tree/lib/syntax/node/IdSelector.js generated vendored Normal file
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@ -0,0 +1,27 @@
var TYPE = require('../../tokenizer').TYPE;
var HASH = TYPE.Hash;
// <hash-token>
module.exports = {
name: 'IdSelector',
structure: {
name: String
},
parse: function() {
var start = this.scanner.tokenStart;
// TODO: check value is an ident
this.eat(HASH);
return {
type: 'IdSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start + 1)
};
},
generate: function(node) {
this.chunk('#');
this.chunk(node.name);
}
};

20
assets_old/node_modules/css-tree/lib/syntax/node/Identifier.js generated vendored Normal file
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@ -0,0 +1,20 @@
var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
module.exports = {
name: 'Identifier',
structure: {
name: String
},
parse: function() {
return {
type: 'Identifier',
loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
name: this.consume(IDENT)
};
},
generate: function(node) {
this.chunk(node.name);
}
};

76
assets_old/node_modules/css-tree/lib/syntax/node/MediaFeature.js generated vendored Normal file
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@ -0,0 +1,76 @@
var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var NUMBER = TYPE.Number;
var DIMENSION = TYPE.Dimension;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
var RIGHTPARENTHESIS = TYPE.RightParenthesis;
var COLON = TYPE.Colon;
var DELIM = TYPE.Delim;
module.exports = {
name: 'MediaFeature',
structure: {
name: String,
value: ['Identifier', 'Number', 'Dimension', 'Ratio', null]
},
parse: function() {
var start = this.scanner.tokenStart;
var name;
var value = null;
this.eat(LEFTPARENTHESIS);
this.scanner.skipSC();
name = this.consume(IDENT);
this.scanner.skipSC();
if (this.scanner.tokenType !== RIGHTPARENTHESIS) {
this.eat(COLON);
this.scanner.skipSC();
switch (this.scanner.tokenType) {
case NUMBER:
if (this.lookupNonWSType(1) === DELIM) {
value = this.Ratio();
} else {
value = this.Number();
}
break;
case DIMENSION:
value = this.Dimension();
break;
case IDENT:
value = this.Identifier();
break;
default:
this.error('Number, dimension, ratio or identifier is expected');
}
this.scanner.skipSC();
}
this.eat(RIGHTPARENTHESIS);
return {
type: 'MediaFeature',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
value: value
};
},
generate: function(node) {
this.chunk('(');
this.chunk(node.name);
if (node.value !== null) {
this.chunk(':');
this.node(node.value);
}
this.chunk(')');
}
};

68
assets_old/node_modules/css-tree/lib/syntax/node/MediaQuery.js generated vendored Normal file
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@ -0,0 +1,68 @@
var TYPE = require('../../tokenizer').TYPE;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var IDENT = TYPE.Ident;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
module.exports = {
name: 'MediaQuery',
structure: {
children: [[
'Identifier',
'MediaFeature',
'WhiteSpace'
]]
},
parse: function() {
this.scanner.skipSC();
var children = this.createList();
var child = null;
var space = null;
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case COMMENT:
this.scanner.next();
continue;
case WHITESPACE:
space = this.WhiteSpace();
continue;
case IDENT:
child = this.Identifier();
break;
case LEFTPARENTHESIS:
child = this.MediaFeature();
break;
default:
break scan;
}
if (space !== null) {
children.push(space);
space = null;
}
children.push(child);
}
if (child === null) {
this.error('Identifier or parenthesis is expected');
}
return {
type: 'MediaQuery',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node);
}
};

36
assets_old/node_modules/css-tree/lib/syntax/node/MediaQueryList.js generated vendored Normal file
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@ -0,0 +1,36 @@
var COMMA = require('../../tokenizer').TYPE.Comma;
module.exports = {
name: 'MediaQueryList',
structure: {
children: [[
'MediaQuery'
]]
},
parse: function(relative) {
var children = this.createList();
this.scanner.skipSC();
while (!this.scanner.eof) {
children.push(this.MediaQuery(relative));
if (this.scanner.tokenType !== COMMA) {
break;
}
this.scanner.next();
}
return {
type: 'MediaQueryList',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node, function() {
this.chunk(',');
});
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Nth.js generated vendored Normal file
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module.exports = {
name: 'Nth',
structure: {
nth: ['AnPlusB', 'Identifier'],
selector: ['SelectorList', null]
},
parse: function(allowOfClause) {
this.scanner.skipSC();
var start = this.scanner.tokenStart;
var end = start;
var selector = null;
var query;
if (this.scanner.lookupValue(0, 'odd') || this.scanner.lookupValue(0, 'even')) {
query = this.Identifier();
} else {
query = this.AnPlusB();
}
this.scanner.skipSC();
if (allowOfClause && this.scanner.lookupValue(0, 'of')) {
this.scanner.next();
selector = this.SelectorList();
if (this.needPositions) {
end = this.getLastListNode(selector.children).loc.end.offset;
}
} else {
if (this.needPositions) {
end = query.loc.end.offset;
}
}
return {
type: 'Nth',
loc: this.getLocation(start, end),
nth: query,
selector: selector
};
},
generate: function(node) {
this.node(node.nth);
if (node.selector !== null) {
this.chunk(' of ');
this.node(node.selector);
}
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Number.js generated vendored Normal file
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var NUMBER = require('../../tokenizer').TYPE.Number;
module.exports = {
name: 'Number',
structure: {
value: String
},
parse: function() {
return {
type: 'Number',
loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
value: this.consume(NUMBER)
};
},
generate: function(node) {
this.chunk(node.value);
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Operator.js generated vendored Normal file
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// '/' | '*' | ',' | ':' | '+' | '-'
module.exports = {
name: 'Operator',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
this.scanner.next();
return {
type: 'Operator',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.value);
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Parentheses.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var LEFTPARENTHESIS = TYPE.LeftParenthesis;
var RIGHTPARENTHESIS = TYPE.RightParenthesis;
module.exports = {
name: 'Parentheses',
structure: {
children: [[]]
},
parse: function(readSequence, recognizer) {
var start = this.scanner.tokenStart;
var children = null;
this.eat(LEFTPARENTHESIS);
children = readSequence.call(this, recognizer);
if (!this.scanner.eof) {
this.eat(RIGHTPARENTHESIS);
}
return {
type: 'Parentheses',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.chunk('(');
this.children(node);
this.chunk(')');
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Percentage.js generated vendored Normal file
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var consumeNumber = require('../../tokenizer/utils').consumeNumber;
var TYPE = require('../../tokenizer').TYPE;
var PERCENTAGE = TYPE.Percentage;
module.exports = {
name: 'Percentage',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
var numberEnd = consumeNumber(this.scanner.source, start);
this.eat(PERCENTAGE);
return {
type: 'Percentage',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.source.substring(start, numberEnd)
};
},
generate: function(node) {
this.chunk(node.value);
this.chunk('%');
}
};

61
assets_old/node_modules/css-tree/lib/syntax/node/PseudoClassSelector.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var FUNCTION = TYPE.Function;
var COLON = TYPE.Colon;
var RIGHTPARENTHESIS = TYPE.RightParenthesis;
// : [ <ident> | <function-token> <any-value>? ) ]
module.exports = {
name: 'PseudoClassSelector',
structure: {
name: String,
children: [['Raw'], null]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = null;
var name;
var nameLowerCase;
this.eat(COLON);
if (this.scanner.tokenType === FUNCTION) {
name = this.consumeFunctionName();
nameLowerCase = name.toLowerCase();
if (this.pseudo.hasOwnProperty(nameLowerCase)) {
this.scanner.skipSC();
children = this.pseudo[nameLowerCase].call(this);
this.scanner.skipSC();
} else {
children = this.createList();
children.push(
this.Raw(this.scanner.tokenIndex, null, false)
);
}
this.eat(RIGHTPARENTHESIS);
} else {
name = this.consume(IDENT);
}
return {
type: 'PseudoClassSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
children: children
};
},
generate: function(node) {
this.chunk(':');
this.chunk(node.name);
if (node.children !== null) {
this.chunk('(');
this.children(node);
this.chunk(')');
}
},
walkContext: 'function'
};

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assets_old/node_modules/css-tree/lib/syntax/node/PseudoElementSelector.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var FUNCTION = TYPE.Function;
var COLON = TYPE.Colon;
var RIGHTPARENTHESIS = TYPE.RightParenthesis;
// :: [ <ident> | <function-token> <any-value>? ) ]
module.exports = {
name: 'PseudoElementSelector',
structure: {
name: String,
children: [['Raw'], null]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = null;
var name;
var nameLowerCase;
this.eat(COLON);
this.eat(COLON);
if (this.scanner.tokenType === FUNCTION) {
name = this.consumeFunctionName();
nameLowerCase = name.toLowerCase();
if (this.pseudo.hasOwnProperty(nameLowerCase)) {
this.scanner.skipSC();
children = this.pseudo[nameLowerCase].call(this);
this.scanner.skipSC();
} else {
children = this.createList();
children.push(
this.Raw(this.scanner.tokenIndex, null, false)
);
}
this.eat(RIGHTPARENTHESIS);
} else {
name = this.consume(IDENT);
}
return {
type: 'PseudoElementSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: name,
children: children
};
},
generate: function(node) {
this.chunk('::');
this.chunk(node.name);
if (node.children !== null) {
this.chunk('(');
this.children(node);
this.chunk(')');
}
},
walkContext: 'function'
};

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assets_old/node_modules/css-tree/lib/syntax/node/Ratio.js generated vendored Normal file
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var isDigit = require('../../tokenizer').isDigit;
var TYPE = require('../../tokenizer').TYPE;
var NUMBER = TYPE.Number;
var DELIM = TYPE.Delim;
var SOLIDUS = 0x002F; // U+002F SOLIDUS (/)
var FULLSTOP = 0x002E; // U+002E FULL STOP (.)
// Terms of <ratio> should be a positive numbers (not zero or negative)
// (see https://drafts.csswg.org/mediaqueries-3/#values)
// However, -o-min-device-pixel-ratio takes fractional values as a ratio's term
// and this is using by various sites. Therefore we relax checking on parse
// to test a term is unsigned number without an exponent part.
// Additional checking may be applied on lexer validation.
function consumeNumber() {
this.scanner.skipWS();
var value = this.consume(NUMBER);
for (var i = 0; i < value.length; i++) {
var code = value.charCodeAt(i);
if (!isDigit(code) && code !== FULLSTOP) {
this.error('Unsigned number is expected', this.scanner.tokenStart - value.length + i);
}
}
if (Number(value) === 0) {
this.error('Zero number is not allowed', this.scanner.tokenStart - value.length);
}
return value;
}
// <positive-integer> S* '/' S* <positive-integer>
module.exports = {
name: 'Ratio',
structure: {
left: String,
right: String
},
parse: function() {
var start = this.scanner.tokenStart;
var left = consumeNumber.call(this);
var right;
this.scanner.skipWS();
if (!this.scanner.isDelim(SOLIDUS)) {
this.error('Solidus is expected');
}
this.eat(DELIM);
right = consumeNumber.call(this);
return {
type: 'Ratio',
loc: this.getLocation(start, this.scanner.tokenStart),
left: left,
right: right
};
},
generate: function(node) {
this.chunk(node.left);
this.chunk('/');
this.chunk(node.right);
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Raw.js generated vendored Normal file
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var tokenizer = require('../../tokenizer');
var TYPE = tokenizer.TYPE;
var WhiteSpace = TYPE.WhiteSpace;
var Semicolon = TYPE.Semicolon;
var LeftCurlyBracket = TYPE.LeftCurlyBracket;
var Delim = TYPE.Delim;
var EXCLAMATIONMARK = 0x0021; // U+0021 EXCLAMATION MARK (!)
function getOffsetExcludeWS() {
if (this.scanner.tokenIndex > 0) {
if (this.scanner.lookupType(-1) === WhiteSpace) {
return this.scanner.tokenIndex > 1
? this.scanner.getTokenStart(this.scanner.tokenIndex - 1)
: this.scanner.firstCharOffset;
}
}
return this.scanner.tokenStart;
}
// 0, 0, false
function balanceEnd() {
return 0;
}
// LEFTCURLYBRACKET, 0, false
function leftCurlyBracket(tokenType) {
return tokenType === LeftCurlyBracket ? 1 : 0;
}
// LEFTCURLYBRACKET, SEMICOLON, false
function leftCurlyBracketOrSemicolon(tokenType) {
return tokenType === LeftCurlyBracket || tokenType === Semicolon ? 1 : 0;
}
// EXCLAMATIONMARK, SEMICOLON, false
function exclamationMarkOrSemicolon(tokenType, source, offset) {
if (tokenType === Delim && source.charCodeAt(offset) === EXCLAMATIONMARK) {
return 1;
}
return tokenType === Semicolon ? 1 : 0;
}
// 0, SEMICOLON, true
function semicolonIncluded(tokenType) {
return tokenType === Semicolon ? 2 : 0;
}
module.exports = {
name: 'Raw',
structure: {
value: String
},
parse: function(startToken, mode, excludeWhiteSpace) {
var startOffset = this.scanner.getTokenStart(startToken);
var endOffset;
this.scanner.skip(
this.scanner.getRawLength(startToken, mode || balanceEnd)
);
if (excludeWhiteSpace && this.scanner.tokenStart > startOffset) {
endOffset = getOffsetExcludeWS.call(this);
} else {
endOffset = this.scanner.tokenStart;
}
return {
type: 'Raw',
loc: this.getLocation(startOffset, endOffset),
value: this.scanner.source.substring(startOffset, endOffset)
};
},
generate: function(node) {
this.chunk(node.value);
},
mode: {
default: balanceEnd,
leftCurlyBracket: leftCurlyBracket,
leftCurlyBracketOrSemicolon: leftCurlyBracketOrSemicolon,
exclamationMarkOrSemicolon: exclamationMarkOrSemicolon,
semicolonIncluded: semicolonIncluded
}
};

54
assets_old/node_modules/css-tree/lib/syntax/node/Rule.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var rawMode = require('./Raw').mode;
var LEFTCURLYBRACKET = TYPE.LeftCurlyBracket;
function consumeRaw(startToken) {
return this.Raw(startToken, rawMode.leftCurlyBracket, true);
}
function consumePrelude() {
var prelude = this.SelectorList();
if (prelude.type !== 'Raw' &&
this.scanner.eof === false &&
this.scanner.tokenType !== LEFTCURLYBRACKET) {
this.error();
}
return prelude;
}
module.exports = {
name: 'Rule',
structure: {
prelude: ['SelectorList', 'Raw'],
block: ['Block']
},
parse: function() {
var startToken = this.scanner.tokenIndex;
var startOffset = this.scanner.tokenStart;
var prelude;
var block;
if (this.parseRulePrelude) {
prelude = this.parseWithFallback(consumePrelude, consumeRaw);
} else {
prelude = consumeRaw.call(this, startToken);
}
block = this.Block(true);
return {
type: 'Rule',
loc: this.getLocation(startOffset, this.scanner.tokenStart),
prelude: prelude,
block: block
};
},
generate: function(node) {
this.node(node.prelude);
this.node(node.block);
},
walkContext: 'rule'
};

32
assets_old/node_modules/css-tree/lib/syntax/node/Selector.js generated vendored Normal file
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module.exports = {
name: 'Selector',
structure: {
children: [[
'TypeSelector',
'IdSelector',
'ClassSelector',
'AttributeSelector',
'PseudoClassSelector',
'PseudoElementSelector',
'Combinator',
'WhiteSpace'
]]
},
parse: function() {
var children = this.readSequence(this.scope.Selector);
// nothing were consumed
if (this.getFirstListNode(children) === null) {
this.error('Selector is expected');
}
return {
type: 'Selector',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node);
}
};

39
assets_old/node_modules/css-tree/lib/syntax/node/SelectorList.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var COMMA = TYPE.Comma;
module.exports = {
name: 'SelectorList',
structure: {
children: [[
'Selector',
'Raw'
]]
},
parse: function() {
var children = this.createList();
while (!this.scanner.eof) {
children.push(this.Selector());
if (this.scanner.tokenType === COMMA) {
this.scanner.next();
continue;
}
break;
}
return {
type: 'SelectorList',
loc: this.getLocationFromList(children),
children: children
};
},
generate: function(node) {
this.children(node, function() {
this.chunk(',');
});
},
walkContext: 'selector'
};

18
assets_old/node_modules/css-tree/lib/syntax/node/String.js generated vendored Normal file
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var STRING = require('../../tokenizer').TYPE.String;
module.exports = {
name: 'String',
structure: {
value: String
},
parse: function() {
return {
type: 'String',
loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
value: this.consume(STRING)
};
},
generate: function(node) {
this.chunk(node.value);
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/StyleSheet.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var WHITESPACE = TYPE.WhiteSpace;
var COMMENT = TYPE.Comment;
var ATKEYWORD = TYPE.AtKeyword;
var CDO = TYPE.CDO;
var CDC = TYPE.CDC;
var EXCLAMATIONMARK = 0x0021; // U+0021 EXCLAMATION MARK (!)
function consumeRaw(startToken) {
return this.Raw(startToken, null, false);
}
module.exports = {
name: 'StyleSheet',
structure: {
children: [[
'Comment',
'CDO',
'CDC',
'Atrule',
'Rule',
'Raw'
]]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = this.createList();
var child;
scan:
while (!this.scanner.eof) {
switch (this.scanner.tokenType) {
case WHITESPACE:
this.scanner.next();
continue;
case COMMENT:
// ignore comments except exclamation comments (i.e. /*! .. */) on top level
if (this.scanner.source.charCodeAt(this.scanner.tokenStart + 2) !== EXCLAMATIONMARK) {
this.scanner.next();
continue;
}
child = this.Comment();
break;
case CDO: // <!--
child = this.CDO();
break;
case CDC: // -->
child = this.CDC();
break;
// CSS Syntax Module Level 3
// §2.2 Error handling
// At the "top level" of a stylesheet, an <at-keyword-token> starts an at-rule.
case ATKEYWORD:
child = this.parseWithFallback(this.Atrule, consumeRaw);
break;
// Anything else starts a qualified rule ...
default:
child = this.parseWithFallback(this.Rule, consumeRaw);
}
children.push(child);
}
return {
type: 'StyleSheet',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.children(node);
},
walkContext: 'stylesheet'
};

53
assets_old/node_modules/css-tree/lib/syntax/node/TypeSelector.js generated vendored Normal file
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var TYPE = require('../../tokenizer').TYPE;
var IDENT = TYPE.Ident;
var ASTERISK = 0x002A; // U+002A ASTERISK (*)
var VERTICALLINE = 0x007C; // U+007C VERTICAL LINE (|)
function eatIdentifierOrAsterisk() {
if (this.scanner.tokenType !== IDENT &&
this.scanner.isDelim(ASTERISK) === false) {
this.error('Identifier or asterisk is expected');
}
this.scanner.next();
}
// ident
// ident|ident
// ident|*
// *
// *|ident
// *|*
// |ident
// |*
module.exports = {
name: 'TypeSelector',
structure: {
name: String
},
parse: function() {
var start = this.scanner.tokenStart;
if (this.scanner.isDelim(VERTICALLINE)) {
this.scanner.next();
eatIdentifierOrAsterisk.call(this);
} else {
eatIdentifierOrAsterisk.call(this);
if (this.scanner.isDelim(VERTICALLINE)) {
this.scanner.next();
eatIdentifierOrAsterisk.call(this);
}
}
return {
type: 'TypeSelector',
loc: this.getLocation(start, this.scanner.tokenStart),
name: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.name);
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/UnicodeRange.js generated vendored Normal file
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var isHexDigit = require('../../tokenizer').isHexDigit;
var cmpChar = require('../../tokenizer').cmpChar;
var TYPE = require('../../tokenizer').TYPE;
var NAME = require('../../tokenizer').NAME;
var IDENT = TYPE.Ident;
var NUMBER = TYPE.Number;
var DIMENSION = TYPE.Dimension;
var PLUSSIGN = 0x002B; // U+002B PLUS SIGN (+)
var HYPHENMINUS = 0x002D; // U+002D HYPHEN-MINUS (-)
var QUESTIONMARK = 0x003F; // U+003F QUESTION MARK (?)
var U = 0x0075; // U+0075 LATIN SMALL LETTER U (u)
function eatHexSequence(offset, allowDash) {
for (var pos = this.scanner.tokenStart + offset, len = 0; pos < this.scanner.tokenEnd; pos++) {
var code = this.scanner.source.charCodeAt(pos);
if (code === HYPHENMINUS && allowDash && len !== 0) {
if (eatHexSequence.call(this, offset + len + 1, false) === 0) {
this.error();
}
return -1;
}
if (!isHexDigit(code)) {
this.error(
allowDash && len !== 0
? 'HyphenMinus' + (len < 6 ? ' or hex digit' : '') + ' is expected'
: (len < 6 ? 'Hex digit is expected' : 'Unexpected input'),
pos
);
}
if (++len > 6) {
this.error('Too many hex digits', pos);
};
}
this.scanner.next();
return len;
}
function eatQuestionMarkSequence(max) {
var count = 0;
while (this.scanner.isDelim(QUESTIONMARK)) {
if (++count > max) {
this.error('Too many question marks');
}
this.scanner.next();
}
}
function startsWith(code) {
if (this.scanner.source.charCodeAt(this.scanner.tokenStart) !== code) {
this.error(NAME[code] + ' is expected');
}
}
// https://drafts.csswg.org/css-syntax/#urange
// Informally, the <urange> production has three forms:
// U+0001
// Defines a range consisting of a single code point, in this case the code point "1".
// U+0001-00ff
// Defines a range of codepoints between the first and the second value, in this case
// the range between "1" and "ff" (255 in decimal) inclusive.
// U+00??
// Defines a range of codepoints where the "?" characters range over all hex digits,
// in this case defining the same as the value U+0000-00ff.
// In each form, a maximum of 6 digits is allowed for each hexadecimal number (if you treat "?" as a hexadecimal digit).
//
// <urange> =
// u '+' <ident-token> '?'* |
// u <dimension-token> '?'* |
// u <number-token> '?'* |
// u <number-token> <dimension-token> |
// u <number-token> <number-token> |
// u '+' '?'+
function scanUnicodeRange() {
var hexLength = 0;
// u '+' <ident-token> '?'*
// u '+' '?'+
if (this.scanner.isDelim(PLUSSIGN)) {
this.scanner.next();
if (this.scanner.tokenType === IDENT) {
hexLength = eatHexSequence.call(this, 0, true);
if (hexLength > 0) {
eatQuestionMarkSequence.call(this, 6 - hexLength);
}
return;
}
if (this.scanner.isDelim(QUESTIONMARK)) {
this.scanner.next();
eatQuestionMarkSequence.call(this, 5);
return;
}
this.error('Hex digit or question mark is expected');
return;
}
// u <number-token> '?'*
// u <number-token> <dimension-token>
// u <number-token> <number-token>
if (this.scanner.tokenType === NUMBER) {
startsWith.call(this, PLUSSIGN);
hexLength = eatHexSequence.call(this, 1, true);
if (this.scanner.isDelim(QUESTIONMARK)) {
eatQuestionMarkSequence.call(this, 6 - hexLength);
return;
}
if (this.scanner.tokenType === DIMENSION ||
this.scanner.tokenType === NUMBER) {
startsWith.call(this, HYPHENMINUS);
eatHexSequence.call(this, 1, false);
return;
}
return;
}
// u <dimension-token> '?'*
if (this.scanner.tokenType === DIMENSION) {
startsWith.call(this, PLUSSIGN);
hexLength = eatHexSequence.call(this, 1, true);
if (hexLength > 0) {
eatQuestionMarkSequence.call(this, 6 - hexLength);
}
return;
}
this.error();
}
module.exports = {
name: 'UnicodeRange',
structure: {
value: String
},
parse: function() {
var start = this.scanner.tokenStart;
// U or u
if (!cmpChar(this.scanner.source, start, U)) {
this.error('U is expected');
}
if (!cmpChar(this.scanner.source, start + 1, PLUSSIGN)) {
this.error('Plus sign is expected');
}
this.scanner.next();
scanUnicodeRange.call(this);
return {
type: 'UnicodeRange',
loc: this.getLocation(start, this.scanner.tokenStart),
value: this.scanner.substrToCursor(start)
};
},
generate: function(node) {
this.chunk(node.value);
}
};

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assets_old/node_modules/css-tree/lib/syntax/node/Url.js generated vendored Normal file
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var isWhiteSpace = require('../../tokenizer').isWhiteSpace;
var cmpStr = require('../../tokenizer').cmpStr;
var TYPE = require('../../tokenizer').TYPE;
var FUNCTION = TYPE.Function;
var URL = TYPE.Url;
var RIGHTPARENTHESIS = TYPE.RightParenthesis;
// <url-token> | <function-token> <string> )
module.exports = {
name: 'Url',
structure: {
value: ['String', 'Raw']
},
parse: function() {
var start = this.scanner.tokenStart;
var value;
switch (this.scanner.tokenType) {
case URL:
var rawStart = start + 4;
var rawEnd = this.scanner.tokenEnd - 1;
while (rawStart < rawEnd && isWhiteSpace(this.scanner.source.charCodeAt(rawStart))) {
rawStart++;
}
while (rawStart < rawEnd && isWhiteSpace(this.scanner.source.charCodeAt(rawEnd - 1))) {
rawEnd--;
}
value = {
type: 'Raw',
loc: this.getLocation(rawStart, rawEnd),
value: this.scanner.source.substring(rawStart, rawEnd)
};
this.eat(URL);
break;
case FUNCTION:
if (!cmpStr(this.scanner.source, this.scanner.tokenStart, this.scanner.tokenEnd, 'url(')) {
this.error('Function name must be `url`');
}
this.eat(FUNCTION);
this.scanner.skipSC();
value = this.String();
this.scanner.skipSC();
this.eat(RIGHTPARENTHESIS);
break;
default:
this.error('Url or Function is expected');
}
return {
type: 'Url',
loc: this.getLocation(start, this.scanner.tokenStart),
value: value
};
},
generate: function(node) {
this.chunk('url');
this.chunk('(');
this.node(node.value);
this.chunk(')');
}
};

19
assets_old/node_modules/css-tree/lib/syntax/node/Value.js generated vendored Normal file
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@ -0,0 +1,19 @@
module.exports = {
name: 'Value',
structure: {
children: [[]]
},
parse: function() {
var start = this.scanner.tokenStart;
var children = this.readSequence(this.scope.Value);
return {
type: 'Value',
loc: this.getLocation(start, this.scanner.tokenStart),
children: children
};
},
generate: function(node) {
this.children(node);
}
};

26
assets_old/node_modules/css-tree/lib/syntax/node/WhiteSpace.js generated vendored Normal file
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var WHITESPACE = require('../../tokenizer').TYPE.WhiteSpace;
var SPACE = Object.freeze({
type: 'WhiteSpace',
loc: null,
value: ' '
});
module.exports = {
name: 'WhiteSpace',
structure: {
value: String
},
parse: function() {
this.eat(WHITESPACE);
return SPACE;
// return {
// type: 'WhiteSpace',
// loc: this.getLocation(this.scanner.tokenStart, this.scanner.tokenEnd),
// value: this.consume(WHITESPACE)
// };
},
generate: function(node) {
this.chunk(node.value);
}
};

42
assets_old/node_modules/css-tree/lib/syntax/node/index.js generated vendored Normal file
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module.exports = {
AnPlusB: require('./AnPlusB'),
Atrule: require('./Atrule'),
AtrulePrelude: require('./AtrulePrelude'),
AttributeSelector: require('./AttributeSelector'),
Block: require('./Block'),
Brackets: require('./Brackets'),
CDC: require('./CDC'),
CDO: require('./CDO'),
ClassSelector: require('./ClassSelector'),
Combinator: require('./Combinator'),
Comment: require('./Comment'),
Declaration: require('./Declaration'),
DeclarationList: require('./DeclarationList'),
Dimension: require('./Dimension'),
Function: require('./Function'),
HexColor: require('./HexColor'),
Identifier: require('./Identifier'),
IdSelector: require('./IdSelector'),
MediaFeature: require('./MediaFeature'),
MediaQuery: require('./MediaQuery'),
MediaQueryList: require('./MediaQueryList'),
Nth: require('./Nth'),
Number: require('./Number'),
Operator: require('./Operator'),
Parentheses: require('./Parentheses'),
Percentage: require('./Percentage'),
PseudoClassSelector: require('./PseudoClassSelector'),
PseudoElementSelector: require('./PseudoElementSelector'),
Ratio: require('./Ratio'),
Raw: require('./Raw'),
Rule: require('./Rule'),
Selector: require('./Selector'),
SelectorList: require('./SelectorList'),
String: require('./String'),
StyleSheet: require('./StyleSheet'),
TypeSelector: require('./TypeSelector'),
UnicodeRange: require('./UnicodeRange'),
Url: require('./Url'),
Value: require('./Value'),
WhiteSpace: require('./WhiteSpace')
};

9
assets_old/node_modules/css-tree/lib/syntax/pseudo/common/nth.js generated vendored Normal file
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var DISALLOW_OF_CLAUSE = false;
module.exports = {
parse: function nth() {
return this.createSingleNodeList(
this.Nth(DISALLOW_OF_CLAUSE)
);
}
};

9
assets_old/node_modules/css-tree/lib/syntax/pseudo/common/nthWithOfClause.js generated vendored Normal file
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var ALLOW_OF_CLAUSE = true;
module.exports = {
parse: function nthWithOfClause() {
return this.createSingleNodeList(
this.Nth(ALLOW_OF_CLAUSE)
);
}
};

7
assets_old/node_modules/css-tree/lib/syntax/pseudo/common/selectorList.js generated vendored Normal file
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@ -0,0 +1,7 @@
module.exports = {
parse: function selectorList() {
return this.createSingleNodeList(
this.SelectorList()
);
}
};

7
assets_old/node_modules/css-tree/lib/syntax/pseudo/dir.js generated vendored Normal file
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@ -0,0 +1,7 @@
module.exports = {
parse: function() {
return this.createSingleNodeList(
this.Identifier()
);
}
};

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