489 lines
18 KiB
Markdown
489 lines
18 KiB
Markdown
# 6.0.4
|
||
|
||
- Fixed: ts errors
|
||
|
||
# 6.0.3
|
||
|
||
- Fixed: replace node built-in "util" module with "util-deprecate"
|
||
- Fixed: handle uppercase pseudo elements
|
||
- Fixed: do not create invalid combinator before comment
|
||
|
||
# 6.0.2
|
||
|
||
- Fixed an issue with parsing and stringifying an empty attribute value
|
||
|
||
# 6.0.1
|
||
|
||
- Fixed an issue with unicode surrogate pair parsing
|
||
|
||
# 6.0.0
|
||
|
||
- Updated: `cssesc` to 3.0.0 (major)
|
||
- Fixed: Issues with escaped `id` and `class` selectors
|
||
|
||
# 5.0.0
|
||
|
||
- Allow escaped dot within class name.
|
||
- Update PostCSS to 7.0.7 (patch)
|
||
|
||
# 5.0.0-rc.4
|
||
|
||
- Fixed an issue where comments immediately after an insensitive (in attribute)
|
||
were not parsed correctly.
|
||
- Updated `cssesc` to 2.0.0 (major).
|
||
- Removed outdated integration tests.
|
||
- Added tests for custom selectors, tags with attributes, the universal
|
||
selector with pseudos, and tokens after combinators.
|
||
|
||
# 5.0.0-rc.1
|
||
|
||
To ease adoption of the v5.0 release, we have relaxed the node version
|
||
check performed by npm at installation time to allow for node 4, which
|
||
remains officially unsupported, but likely to continue working for the
|
||
time being.
|
||
|
||
# 5.0.0-rc.0
|
||
|
||
This release has **BREAKING CHANGES** that were required to fix regressions
|
||
in 4.0.0 and to make the Combinator Node API consistent for all combinator
|
||
types. Please read carefully.
|
||
|
||
## Summary of Changes
|
||
|
||
* The way a descendent combinator that isn't a single space character (E.g. `.a .b`) is stored in the AST has changed.
|
||
* Named Combinators (E.g. `.a /for/ .b`) are now properly parsed as a combinator.
|
||
* It is now possible to look up a node based on the source location of a character in that node and to query nodes if they contain some character.
|
||
* Several bug fixes that caused the parser to hang and run out of memory when a `/` was encountered have been fixed.
|
||
* The minimum supported version of Node is now `v6.0.0`.
|
||
|
||
### Changes to the Descendent Combinator
|
||
|
||
In prior releases, the value of a descendant combinator with multiple spaces included all the spaces.
|
||
|
||
* `.a .b`: Extra spaces are now stored as space before.
|
||
- Old & Busted:
|
||
- `combinator.value === " "`
|
||
- New hotness:
|
||
- `combinator.value === " " && combinator.spaces.before === " "`
|
||
* `.a /*comment*/.b`: A comment at the end of the combinator causes extra space to become after space.
|
||
- Old & Busted:
|
||
- `combinator.value === " "`
|
||
- `combinator.raws.value === " /*comment/"`
|
||
- New hotness:
|
||
- `combinator.value === " "`
|
||
- `combinator.spaces.after === " "`
|
||
- `combinator.raws.spaces.after === " /*comment*/"`
|
||
* `.a<newline>.b`: whitespace that doesn't start or end with a single space character is stored as a raw value.
|
||
- Old & Busted:
|
||
- `combinator.value === "\n"`
|
||
- `combinator.raws.value === undefined`
|
||
- New hotness:
|
||
- `combinator.value === " "`
|
||
- `combinator.raws.value === "\n"`
|
||
|
||
### Support for "Named Combinators"
|
||
|
||
Although, nonstandard and unlikely to ever become a standard, combinators like `/deep/` and `/for/` are now properly supported.
|
||
|
||
Because they've been taken off the standardization track, there is no spec-official name for combinators of the form `/<ident>/`. However, I talked to [Tab Atkins](https://twitter.com/tabatkins) and we agreed to call them "named combinators" so now they are called that.
|
||
|
||
Before this release such named combinators were parsed without intention and generated three nodes of type `"tag"` where the first and last nodes had a value of `"/"`.
|
||
|
||
* `.a /for/ .b` is parsed as a combinator.
|
||
- Old & Busted:
|
||
- `root.nodes[0].nodes[1].type === "tag"`
|
||
- `root.nodes[0].nodes[1].value === "/"`
|
||
- New hotness:
|
||
- `root.nodes[0].nodes[1].type === "combinator"`
|
||
- `root.nodes[0].nodes[1].value === "/for/"`
|
||
* `.a /F\6fR/ .b` escapes are handled and uppercase is normalized.
|
||
- Old & Busted:
|
||
- `root.nodes[0].nodes[2].type === "tag"`
|
||
- `root.nodes[0].nodes[2].value === "F\\6fR"`
|
||
- New hotness:
|
||
- `root.nodes[0].nodes[1].type === "combinator"`
|
||
- `root.nodes[0].nodes[1].value === "/for/"`
|
||
- `root.nodes[0].nodes[1].raws.value === "/F\\6fR/"`
|
||
|
||
### Source position checks and lookups
|
||
|
||
A new API was added to look up a node based on the source location.
|
||
|
||
```js
|
||
const selectorParser = require("postcss-selector-parser");
|
||
// You can find the most specific node for any given character
|
||
let combinator = selectorParser.astSync(".a > .b").atPosition(1,4);
|
||
combinator.toString() === " > ";
|
||
// You can check if a node includes a specific character
|
||
// Whitespace surrounding the node that is owned by that node
|
||
// is included in the check.
|
||
[2,3,4,5,6].map(column => combinator.isAtPosition(1, column));
|
||
// => [false, true, true, true, false]
|
||
```
|
||
|
||
# 4.0.0
|
||
|
||
This release has **BREAKING CHANGES** that were required to fix bugs regarding values with escape sequences. Please read carefully.
|
||
|
||
* **Identifiers with escapes** - CSS escape sequences are now hidden from the public API by default.
|
||
The normal value of a node like a class name or ID, or an aspect of a node such as attribute
|
||
selector's value, is unescaped. Escapes representing Non-ascii characters are unescaped into
|
||
unicode characters. For example: `bu\tton, .\31 00, #i\2764\FE0Fu, [attr="value is \"quoted\""]`
|
||
will parse respectively to the values `button`, `100`, `i❤️u`, `value is "quoted"`.
|
||
The original escape sequences for these values can be found in the corresponding property name
|
||
in `node.raws`. Where possible, deprecation warnings were added, but the nature
|
||
of escape handling makes it impossible to detect what is escaped or not. Our expectation is
|
||
that most users are neither expecting nor handling escape sequences in their use of this library,
|
||
and so for them, this is a bug fix. Users who are taking care to handle escapes correctly can
|
||
now update their code to remove the escape handling and let us do it for them.
|
||
|
||
* **Mutating values with escapes** - When you make an update to a node property that has escape handling
|
||
The value is assumed to be unescaped, and any special characters are escaped automatically and
|
||
the corresponding `raws` value is immediately updated. This can result in changes to the original
|
||
escape format. Where the exact value of the escape sequence is important there are methods that
|
||
allow both values to be set in conjunction. There are a number of new convenience methods for
|
||
manipulating values that involve escapes, especially for attributes values where the quote mark
|
||
is involved. See https://github.com/postcss/postcss-selector-parser/pull/133 for an extensive
|
||
write-up on these changes.
|
||
|
||
|
||
**Upgrade/API Example**
|
||
|
||
In `3.x` there was no unescape handling and internal consistency of several properties was the caller's job to maintain. It was very easy for the developer
|
||
to create a CSS file that did not parse correctly when some types of values
|
||
were in use.
|
||
|
||
```js
|
||
const selectorParser = require("postcss-selector-parser");
|
||
let attr = selectorParser.attribute({attribute: "id", operator: "=", value: "a-value"});
|
||
attr.value; // => "a-value"
|
||
attr.toString(); // => [id=a-value]
|
||
// Add quotes to an attribute's value.
|
||
// All these values have to be set by the caller to be consistent:
|
||
// no internal consistency is maintained.
|
||
attr.raws.unquoted = attr.value
|
||
attr.value = "'" + attr.value + "'";
|
||
attr.value; // => "'a-value'"
|
||
attr.quoted = true;
|
||
attr.toString(); // => "[id='a-value']"
|
||
```
|
||
|
||
In `4.0` there is a convenient API for setting and mutating values
|
||
that may need escaping. Especially for attributes.
|
||
|
||
```js
|
||
const selectorParser = require("postcss-selector-parser");
|
||
|
||
// The constructor requires you specify the exact escape sequence
|
||
let className = selectorParser.className({value: "illegal class name", raws: {value: "illegal\\ class\\ name"}});
|
||
className.toString(); // => '.illegal\\ class\\ name'
|
||
|
||
// So it's better to set the value as a property
|
||
className = selectorParser.className();
|
||
// Most properties that deal with identifiers work like this
|
||
className.value = "escape for me";
|
||
className.value; // => 'escape for me'
|
||
className.toString(); // => '.escape\\ for\\ me'
|
||
|
||
// emoji and all non-ascii are escaped to ensure it works in every css file.
|
||
className.value = "😱🦄😍";
|
||
className.value; // => '😱🦄😍'
|
||
className.toString(); // => '.\\1F631\\1F984\\1F60D'
|
||
|
||
// you can control the escape sequence if you want, or do bad bad things
|
||
className.setPropertyAndEscape('value', 'xxxx', 'yyyy');
|
||
className.value; // => "xxxx"
|
||
className.toString(); // => ".yyyy"
|
||
|
||
// Pass a value directly through to the css output without escaping it.
|
||
className.setPropertyWithoutEscape('value', '$REPLACE_ME$');
|
||
className.value; // => "$REPLACE_ME$"
|
||
className.toString(); // => ".$REPLACE_ME$"
|
||
|
||
// The biggest changes are to the Attribute class
|
||
// passing quoteMark explicitly is required to avoid a deprecation warning.
|
||
let attr = selectorParser.attribute({attribute: "id", operator: "=", value: "a-value", quoteMark: null});
|
||
attr.toString(); // => "[id=a-value]"
|
||
// Get the value with quotes on it and any necessary escapes.
|
||
// This is the same as reading attr.value in 3.x.
|
||
attr.getQuotedValue(); // => "a-value";
|
||
attr.quoteMark; // => null
|
||
|
||
// Add quotes to an attribute's value.
|
||
attr.quoteMark = "'"; // This is all that's required.
|
||
attr.toString(); // => "[id='a-value']"
|
||
attr.quoted; // => true
|
||
// The value is still the same, only the quotes have changed.
|
||
attr.value; // => a-value
|
||
attr.getQuotedValue(); // => "'a-value'";
|
||
|
||
// deprecated assignment, no warning because there's no escapes
|
||
attr.value = "new-value";
|
||
// no quote mark is needed so it is removed
|
||
attr.getQuotedValue(); // => "new-value";
|
||
|
||
// deprecated assignment,
|
||
attr.value = "\"a 'single quoted' value\"";
|
||
// > (node:27859) DeprecationWarning: Assigning an attribute a value containing characters that might need to be escaped is deprecated. Call attribute.setValue() instead.
|
||
attr.getQuotedValue(); // => '"a \'single quoted\' value"';
|
||
// quote mark inferred from first and last characters.
|
||
attr.quoteMark; // => '"'
|
||
|
||
// setValue takes options to make manipulating the value simple.
|
||
attr.setValue('foo', {smart: true});
|
||
// foo doesn't require any escapes or quotes.
|
||
attr.toString(); // => '[id=foo]'
|
||
attr.quoteMark; // => null
|
||
|
||
// An explicit quote mark can be specified
|
||
attr.setValue('foo', {quoteMark: '"'});
|
||
attr.toString(); // => '[id="foo"]'
|
||
|
||
// preserves quote mark by default
|
||
attr.setValue('bar');
|
||
attr.toString(); // => '[id="bar"]'
|
||
attr.quoteMark = null;
|
||
attr.toString(); // => '[id=bar]'
|
||
|
||
// with no arguments, it preserves quote mark even when it's not a great idea
|
||
attr.setValue('a value \n that should be quoted');
|
||
attr.toString(); // => '[id=a\\ value\\ \\A\\ that\\ should\\ be\\ quoted]'
|
||
|
||
// smart preservation with a specified default
|
||
attr.setValue('a value \n that should be quoted', {smart: true, preferCurrentQuoteMark: true, quoteMark: "'"});
|
||
// => "[id='a value \\A that should be quoted']"
|
||
attr.quoteMark = '"';
|
||
// => '[id="a value \\A that should be quoted"]'
|
||
|
||
// this keeps double quotes because it wants to quote the value and the existing value has double quotes.
|
||
attr.setValue('this should be quoted', {smart: true, preferCurrentQuoteMark: true, quoteMark: "'"});
|
||
// => '[id="this should be quoted"]'
|
||
|
||
// picks single quotes because the value has double quotes
|
||
attr.setValue('a "double quoted" value', {smart: true, preferCurrentQuoteMark: true, quoteMark: "'"});
|
||
// => "[id='a "double quoted" value']"
|
||
|
||
// setPropertyAndEscape lets you do anything you want. Even things that are a bad idea and illegal.
|
||
attr.setPropertyAndEscape('value', 'xxxx', 'the password is 42');
|
||
attr.value; // => "xxxx"
|
||
attr.toString(); // => "[id=the password is 42]"
|
||
|
||
// Pass a value directly through to the css output without escaping it.
|
||
attr.setPropertyWithoutEscape('value', '$REPLACEMENT$');
|
||
attr.value; // => "$REPLACEMENT$"
|
||
attr.toString(); // => "[id=$REPLACEMENT$]"
|
||
```
|
||
|
||
# 3.1.2
|
||
|
||
* Fix: Removed dot-prop dependency since it's no longer written in es5.
|
||
|
||
# 3.1.1
|
||
|
||
* Fix: typescript definitions weren't in the published package.
|
||
|
||
# 3.1.0
|
||
|
||
* Fixed numerous bugs in attribute nodes relating to the handling of comments
|
||
and whitespace. There's significant changes to `attrNode.spaces` and `attrNode.raws` since the `3.0.0` release.
|
||
* Added `Attribute#offsetOf(part)` to get the offset location of
|
||
attribute parts like `"operator"` and `"value"`. This is most
|
||
often added to `Attribute#sourceIndex` for error reporting.
|
||
|
||
# 3.0.0
|
||
|
||
## Breaking changes
|
||
|
||
* Some tweaks to the tokenizer/attribute selector parsing mean that whitespace
|
||
locations might be slightly different to the 2.x code.
|
||
* Better attribute selector parsing with more validation; postcss-selector-parser
|
||
no longer uses regular expressions to parse attribute selectors.
|
||
* Added an async API (thanks to @jacobp100); the default `process` API is now
|
||
async, and the sync API is now accessed through `processSync` instead.
|
||
* `process()` and `processSync()` now return a string instead of the Processor
|
||
instance.
|
||
* Tweaks handling of Less interpolation (thanks to @jwilsson).
|
||
* Removes support for Node 0.12.
|
||
|
||
## Other changes
|
||
|
||
* `ast()` and `astSync()` methods have been added to the `Processor`. These
|
||
return the `Root` node of the selectors after processing them.
|
||
* `transform()` and `transformSync()` methods have been added to the
|
||
`Processor`. These return the value returned by the processor callback
|
||
after processing the selectors.
|
||
* Set the parent when inserting a node (thanks to @chriseppstein).
|
||
* Correctly adjust indices when using insertBefore/insertAfter (thanks to @tivac).
|
||
* Fixes handling of namespaces with qualified tag selectors.
|
||
* `process`, `ast` and `transform` (and their sync variants) now accept a
|
||
`postcss` rule node. When provided, better errors are generated and selector
|
||
processing is automatically set back to the rule selector (unless the `updateSelector` option is set to `false`.)
|
||
* Now more memory efficient when tokenizing selectors.
|
||
|
||
### Upgrade hints
|
||
|
||
The pattern of:
|
||
|
||
`rule.selector = processor.process(rule.selector).result.toString();`
|
||
|
||
is now:
|
||
|
||
`processor.processSync(rule)`
|
||
|
||
# 2.2.3
|
||
|
||
* Resolves an issue where the parser would not reduce multiple spaces between an
|
||
ampersand and another simple selector in lossy mode (thanks to @adam-26).
|
||
|
||
# 2.2.2
|
||
|
||
* No longer hangs on an unescaped semicolon; instead the parser will throw
|
||
an exception for these cases.
|
||
|
||
# 2.2.1
|
||
|
||
* Allows a consumer to specify whitespace tokens when creating a new Node
|
||
(thanks to @Semigradsky).
|
||
|
||
# 2.2.0
|
||
|
||
* Added a new option to normalize whitespace when parsing the selector string
|
||
(thanks to @adam-26).
|
||
|
||
# 2.1.1
|
||
|
||
* Better unquoted value handling within attribute selectors
|
||
(thanks to @evilebottnawi).
|
||
|
||
# 2.1.0
|
||
|
||
* Added: Use string constants for all node types & expose them on the main
|
||
parser instance (thanks to @Aweary).
|
||
|
||
# 2.0.0
|
||
|
||
This release contains the following breaking changes:
|
||
|
||
* Renamed all `eachInside` iterators to `walk`. For example, `eachTag` is now
|
||
`walkTags`, and `eachInside` is now `walk`.
|
||
* Renamed `Node#removeSelf()` to `Node#remove()`.
|
||
* Renamed `Container#remove()` to `Container#removeChild()`.
|
||
* Renamed `Node#raw` to `Node#raws` (thanks to @davidtheclark).
|
||
* Now parses `&` as the *nesting* selector, rather than a *tag* selector.
|
||
* Fixes misinterpretation of Sass interpolation (e.g. `#{foo}`) as an
|
||
id selector (thanks to @davidtheclark).
|
||
|
||
and;
|
||
|
||
* Fixes parsing of attribute selectors with equals signs in them
|
||
(e.g. `[data-attr="foo=bar"]`) (thanks to @montmanu).
|
||
* Adds `quoted` and `raw.unquoted` properties to attribute nodes
|
||
(thanks to @davidtheclark).
|
||
|
||
# 1.3.3
|
||
|
||
* Fixes an infinite loop on `)` and `]` tokens when they had no opening pairs.
|
||
Now postcss-selector-parser will throw when it encounters these lone tokens.
|
||
|
||
# 1.3.2
|
||
|
||
* Now uses plain integers rather than `str.charCodeAt(0)` for compiled builds.
|
||
|
||
# 1.3.1
|
||
|
||
* Update flatten to v1.x (thanks to @shinnn).
|
||
|
||
# 1.3.0
|
||
|
||
* Adds a new node type, `String`, to fix a crash on selectors such as
|
||
`foo:bar("test")`.
|
||
|
||
# 1.2.1
|
||
|
||
* Fixes a crash when the parser encountered a trailing combinator.
|
||
|
||
# 1.2.0
|
||
|
||
* A more descriptive error is thrown when the parser expects to find a
|
||
pseudo-class/pseudo-element (thanks to @ashelley).
|
||
* Adds support for line/column locations for selector nodes, as well as a
|
||
`Node#sourceIndex` method (thanks to @davidtheclark).
|
||
|
||
# 1.1.4
|
||
|
||
* Fixes a crash when a selector started with a `>` combinator. The module will
|
||
now no longer throw if a selector has a leading/trailing combinator node.
|
||
|
||
# 1.1.3
|
||
|
||
* Fixes a crash on `@` tokens.
|
||
|
||
# 1.1.2
|
||
|
||
* Fixes an infinite loop caused by using parentheses in a non-pseudo element
|
||
context.
|
||
|
||
# 1.1.1
|
||
|
||
* Fixes a crash when a backslash ended a selector string.
|
||
|
||
# 1.1.0
|
||
|
||
* Adds support for replacing multiple nodes at once with `replaceWith`
|
||
(thanks to @jonathantneal).
|
||
* Parser no longer throws on sequential IDs and trailing commas, to support
|
||
parsing of selector hacks.
|
||
|
||
# 1.0.1
|
||
|
||
* Fixes using `insertAfter` and `insertBefore` during iteration.
|
||
|
||
# 1.0.0
|
||
|
||
* Adds `clone` and `replaceWith` methods to nodes.
|
||
* Adds `insertBefore` and `insertAfter` to containers.
|
||
* Stabilises API.
|
||
|
||
# 0.0.5
|
||
|
||
* Fixes crash on extra whitespace inside a pseudo selector's parentheses.
|
||
* Adds sort function to the container class.
|
||
* Enables the parser to pass its input through without transforming.
|
||
* Iteration-safe `each` and `eachInside`.
|
||
|
||
# 0.0.4
|
||
|
||
* Tidy up redundant duplication.
|
||
* Fixes a bug where the parser would loop infinitely on universal selectors
|
||
inside pseudo selectors.
|
||
* Adds `length` getter and `eachInside`, `map`, `reduce` to the container class.
|
||
* When a selector has been removed from the tree, the root node will no longer
|
||
cast it to a string.
|
||
* Adds node type iterators to the container class (e.g. `eachComment`).
|
||
* Adds filter function to the container class.
|
||
* Adds split function to the container class.
|
||
* Create new node types by doing `parser.id(opts)` etc.
|
||
* Adds support for pseudo classes anywhere in the selector.
|
||
|
||
# 0.0.3
|
||
|
||
* Adds `next` and `prev` to the node class.
|
||
* Adds `first` and `last` getters to the container class.
|
||
* Adds `every` and `some` iterators to the container class.
|
||
* Add `empty` alias for `removeAll`.
|
||
* Combinators are now types of node.
|
||
* Fixes the at method so that it is not an alias for `index`.
|
||
* Tidy up creation of new nodes in the parser.
|
||
* Refactors how namespaces are handled for consistency & less redundant code.
|
||
* Refactors AST to use `nodes` exclusively, and eliminates excessive nesting.
|
||
* Fixes nested pseudo parsing.
|
||
* Fixes whitespace parsing.
|
||
|
||
# 0.0.2
|
||
|
||
* Adds support for namespace selectors.
|
||
* Adds support for selectors joined by escaped spaces - such as `.\31\ 0`.
|
||
|
||
# 0.0.1
|
||
|
||
* Initial release.
|