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Merge pull request #7619 from weseek/imprv/gfm-table-performance
imprv: GFM table performance
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| *.d.ts |
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| module.exports = { | ||
| rules: { | ||
| '@typescript-eslint/no-use-before-define': 'off', | ||
| }, | ||
| }; |
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| *.d.ts | ||
| /lib/ | ||
| /index.js |
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| coverage/ | ||
| *.html | ||
| *.md |
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| test/ |
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| export {gfmTableHtml} from './lib/html.js' | ||
| export {gfmTable} from './lib/syntax.js' |
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| /** | ||
| * @typedef {import('micromark-util-types').HtmlExtension} HtmlExtension | ||
| * @typedef {import('./syntax.js').Align} Align | ||
| */ | ||
|
|
||
| const alignment = { | ||
| none: '', | ||
| left: ' align="left"', | ||
| right: ' align="right"', | ||
| center: ' align="center"' | ||
| } | ||
|
|
||
| /** | ||
| * HTML extension for micromark (passed in `htmlExtensions`). | ||
| * | ||
| * @type {HtmlExtension} | ||
| */ | ||
| export const gfmTableHtml = { | ||
| enter: { | ||
| table(token) { | ||
| /** @type {Array<Align>} */ | ||
| // @ts-expect-error Custom. | ||
| const tableAlign = token._align | ||
| this.lineEndingIfNeeded() | ||
| this.tag('<table>') | ||
| this.setData('tableAlign', tableAlign) | ||
| }, | ||
| tableBody() { | ||
| // Clear slurping line ending from the delimiter row. | ||
| this.setData('slurpOneLineEnding') | ||
| this.tag('<tbody>') | ||
| }, | ||
| tableData() { | ||
| const tableAlign = /** @type {Array<Align>} */ ( | ||
| this.getData('tableAlign') | ||
| ) | ||
| const tableColumn = /** @type {number} */ (this.getData('tableColumn')) | ||
| const align = alignment[tableAlign[tableColumn]] | ||
|
|
||
| if (align === undefined) { | ||
| // Capture results to ignore them. | ||
| this.buffer() | ||
| } else { | ||
| this.lineEndingIfNeeded() | ||
| this.tag('<td' + align + '>') | ||
| } | ||
| }, | ||
| tableHead() { | ||
| this.lineEndingIfNeeded() | ||
| this.tag('<thead>') | ||
| }, | ||
| tableHeader() { | ||
| const tableAlign = /** @type {Array<Align>} */ ( | ||
| this.getData('tableAlign') | ||
| ) | ||
| const tableColumn = /** @type {number} */ (this.getData('tableColumn')) | ||
| const align = alignment[tableAlign[tableColumn]] | ||
|
|
||
| this.lineEndingIfNeeded() | ||
| this.tag('<th' + align + '>') | ||
| }, | ||
| tableRow() { | ||
| this.setData('tableColumn', 0) | ||
| this.lineEndingIfNeeded() | ||
| this.tag('<tr>') | ||
| } | ||
| }, | ||
| exit: { | ||
| // Overwrite the default code text data handler to unescape escaped pipes when | ||
| // they are in tables. | ||
| codeTextData(token) { | ||
| let value = this.sliceSerialize(token) | ||
|
|
||
| if (this.getData('tableAlign')) { | ||
| value = value.replace(/\\([\\|])/g, replace) | ||
| } | ||
|
|
||
| this.raw(this.encode(value)) | ||
| }, | ||
| table() { | ||
| this.setData('tableAlign') | ||
| // If there was no table body, make sure the slurping from the delimiter row | ||
| // is cleared. | ||
| this.setData('slurpAllLineEndings') | ||
| this.lineEndingIfNeeded() | ||
| this.tag('</table>') | ||
| }, | ||
| tableBody() { | ||
| this.lineEndingIfNeeded() | ||
| this.tag('</tbody>') | ||
| }, | ||
| tableData() { | ||
| const tableAlign = /** @type {Array<Align>} */ ( | ||
| this.getData('tableAlign') | ||
| ) | ||
| const tableColumn = /** @type {number} */ (this.getData('tableColumn')) | ||
|
|
||
| if (tableColumn in tableAlign) { | ||
| this.tag('</td>') | ||
| this.setData('tableColumn', tableColumn + 1) | ||
| } else { | ||
| // Stop capturing. | ||
| this.resume() | ||
| } | ||
| }, | ||
| tableHead() { | ||
| this.lineEndingIfNeeded() | ||
| this.tag('</thead>') | ||
| this.setData('slurpOneLineEnding', true) | ||
| // Slurp the line ending from the delimiter row. | ||
| }, | ||
| tableHeader() { | ||
| const tableColumn = /** @type {number} */ (this.getData('tableColumn')) | ||
| this.tag('</th>') | ||
| this.setData('tableColumn', tableColumn + 1) | ||
| }, | ||
| tableRow() { | ||
| const tableAlign = /** @type {Array<Align>} */ ( | ||
| this.getData('tableAlign') | ||
| ) | ||
| let tableColumn = /** @type {number} */ (this.getData('tableColumn')) | ||
|
|
||
| while (tableColumn < tableAlign.length) { | ||
| this.lineEndingIfNeeded() | ||
| this.tag('<td' + alignment[tableAlign[tableColumn]] + '></td>') | ||
| tableColumn++ | ||
| } | ||
|
|
||
| this.setData('tableColumn', tableColumn) | ||
| this.lineEndingIfNeeded() | ||
| this.tag('</tr>') | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @param {string} $0 | ||
| * @param {string} $1 | ||
| * @returns {string} | ||
| */ | ||
| function replace($0, $1) { | ||
| // Pipes work, backslashes don’t (but can’t escape pipes). | ||
| return $1 === '|' ? $1 : $0 | ||
| } |
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