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Split escapecss into two platforms (#9475)
* Split escapecss into to platforms This will reduce core size slightly * Update change note
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3 changed files with 107 additions and 88 deletions
95
core-server/utils/escapecss.js
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95
core-server/utils/escapecss.js
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/*\
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title: $:/core-server/modules/utils/escapecss.js
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type: application/javascript
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module-type: utils-node
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Provides CSS.escape() functionality.
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\*/
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"use strict";
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exports.escapeCSS = (function() {
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// see also https://drafts.csswg.org/cssom/#serialize-an-identifier
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/* eslint-disable */
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/*! https://mths.be/cssescape v1.5.1 by @mathias | MIT license */
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return function(value) {
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if (arguments.length == 0) {
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throw new TypeError('`CSS.escape` requires an argument.');
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}
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var string = String(value);
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var length = string.length;
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var index = -1;
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var codeUnit;
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var result = '';
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var firstCodeUnit = string.charCodeAt(0);
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while (++index < length) {
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codeUnit = string.charCodeAt(index);
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// Note: there’s no need to special-case astral symbols, surrogate
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// pairs, or lone surrogates.
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// If the character is NULL (U+0000), then the REPLACEMENT CHARACTER
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// (U+FFFD).
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if (codeUnit == 0x0000) {
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result += '\uFFFD';
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continue;
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}
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if (
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// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
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// U+007F, […]
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(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
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// If the character is the first character and is in the range [0-9]
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// (U+0030 to U+0039), […]
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(index == 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
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// If the character is the second character and is in the range [0-9]
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// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
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(
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index == 1 &&
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codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
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firstCodeUnit == 0x002D
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)
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) {
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// https://drafts.csswg.org/cssom/#escape-a-character-as-code-point
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result += '\\' + codeUnit.toString(16) + ' ';
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continue;
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}
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if (
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// If the character is the first character and is a `-` (U+002D), and
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// there is no second character, […]
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index == 0 &&
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length == 1 &&
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codeUnit == 0x002D
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) {
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result += '\\' + string.charAt(index);
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continue;
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}
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// If the character is not handled by one of the above rules and is
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// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
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// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
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// U+005A), or [a-z] (U+0061 to U+007A), […]
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if (
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codeUnit >= 0x0080 ||
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codeUnit == 0x002D ||
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codeUnit == 0x005F ||
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codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
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codeUnit >= 0x0041 && codeUnit <= 0x005A ||
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codeUnit >= 0x0061 && codeUnit <= 0x007A
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) {
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// the character itself
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result += string.charAt(index);
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continue;
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}
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// Otherwise, the escaped character.
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// https://drafts.csswg.org/cssom/#escape-a-character
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result += '\\' + string.charAt(index);
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}
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return result;
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};
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/* eslint-enable */
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})();
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@ -1,7 +1,7 @@
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/*\
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title: $:/core/modules/utils/escapecss.js
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type: application/javascript
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module-type: utils
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module-type: utils-browser
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Provides CSS.escape() functionality.
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@ -9,92 +9,6 @@ Provides CSS.escape() functionality.
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"use strict";
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// TODO -- resolve this construction
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exports.escapeCSS = (function() {
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// use browser's native CSS.escape() function if available
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if ($tw.browser && window.CSS && window.CSS.escape) {
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return window.CSS.escape;
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}
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// otherwise, a utility method is provided
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// see also https://drafts.csswg.org/cssom/#serialize-an-identifier
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/*! https://mths.be/cssescape v1.5.1 by @mathias | MIT license */
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return function(value) {
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if (arguments.length == 0) {
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throw new TypeError('`CSS.escape` requires an argument.');
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}
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var string = String(value);
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var length = string.length;
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var index = -1;
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var codeUnit;
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var result = '';
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var firstCodeUnit = string.charCodeAt(0);
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while (++index < length) {
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codeUnit = string.charCodeAt(index);
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// Note: there’s no need to special-case astral symbols, surrogate
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// pairs, or lone surrogates.
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// If the character is NULL (U+0000), then the REPLACEMENT CHARACTER
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// (U+FFFD).
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if (codeUnit == 0x0000) {
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result += '\uFFFD';
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continue;
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}
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if (
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// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
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// U+007F, […]
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(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
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// If the character is the first character and is in the range [0-9]
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// (U+0030 to U+0039), […]
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(index == 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
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// If the character is the second character and is in the range [0-9]
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// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
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(
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index == 1 &&
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codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
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firstCodeUnit == 0x002D
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)
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) {
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// https://drafts.csswg.org/cssom/#escape-a-character-as-code-point
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result += '\\' + codeUnit.toString(16) + ' ';
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continue;
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}
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if (
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// If the character is the first character and is a `-` (U+002D), and
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// there is no second character, […]
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index == 0 &&
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length == 1 &&
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codeUnit == 0x002D
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) {
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result += '\\' + string.charAt(index);
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continue;
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}
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// If the character is not handled by one of the above rules and is
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// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
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// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
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// U+005A), or [a-z] (U+0061 to U+007A), […]
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if (
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codeUnit >= 0x0080 ||
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codeUnit == 0x002D ||
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codeUnit == 0x005F ||
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codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
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codeUnit >= 0x0041 && codeUnit <= 0x005A ||
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codeUnit >= 0x0061 && codeUnit <= 0x007A
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) {
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// the character itself
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result += string.charAt(index);
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continue;
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}
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// Otherwise, the escaped character.
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// https://drafts.csswg.org/cssom/#escape-a-character
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result += '\\' + string.charAt(index);
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}
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return result;
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};
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return window.CSS.escape;
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})();
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@ -0,0 +1,10 @@
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title: $:/changenotes/5.4.0/#9475
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description: Split escapecss.js into two platforms
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release: 5.4.0
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tags: $:/tags/ChangeNote
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change-type: performance
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change-category: internal
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github-links: https://github.com/TiddlyWiki/TiddlyWiki5/pull/9475
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github-contributors: Leilei332
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Split [[$:/core/modules/utils/escapecss.js]] for two platforms: one for the browser, the other for Node.js. The `CSS.escape` polyfill is moved to `core-server`.
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