86 lines
1.6 KiB
Markdown
86 lines
1.6 KiB
Markdown
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# posthtml-rename-id
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[PostHTML](https://github.com/posthtml/posthtml) plugin to rename id attributes
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and it's references. Inspired by [grunt-svgstore](https://github.com/FWeinb/grunt-svgstore).
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Handle following cases:
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- `href="#id"` and `xlink:href="#id"`
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- `style` attribute values like `style="fill: url(#id)"`
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- `<style>` tag values like `.selector {fill: url(#id)"}`
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- any other attribute value like `attr="url(#id)"`
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## Demo
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Input
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```html
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<style>
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.selector {fill: url(#qwe)}
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</style>
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<div id="qwe"></div>
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<a href="#qwe"></a>
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```
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Output
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```html
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<style>
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.selector {fill: url(#prefix_qwe)}
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</style>
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<div id="prefix_qwe"></div>
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<a href="#prefix_qwe"></a>
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```
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## Install
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```sh
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npm install posthtml-rename-id
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```
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## Usage
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```js
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const posthtml = require('posthtml');
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const rename = require('posthtml-rename-id');
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posthtml()
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.use(rename('prefix_[id]'))
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.process('<div id="qwe"></div> <a href="#qwe"></a>')
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.then(({ html }) => {
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console.log(html); // <div id="prefix_qwe"></div> <a href="#prefix_qwe"></a>
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});
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```
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## Configuration
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### `pattern`
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> Type: `string | function`<br>
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> Default: `'[id]'`
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Renaming pattern. `[id]` placeholder can be used as current id of an element.
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If `pattern` provided as a function it will be called with current id as first argument.
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Function should return the new id as string (`[id]` can be used as well).
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## Examples
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Uppercase all ids:
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```js
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posthtml([
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renameId(id => id.toUpperCase())
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]);
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```
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Rename all ids to `elem_{counter}`:
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```js
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let c = 0;
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posthtml([
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renameId((id) => { c++; return 'elem_' + c; })
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]);
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```
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## LICENSE
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[MIT](https://github.com/JetBrains/svg-mixer/blob/master/LICENSE)
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