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functioncssEscape(str){constlength=str.length;letindex=-1;letcodeUnit;letresult='';constfirstCodeUnit=str.charCodeAt(0);while(++index<length){codeUnit=str.charCodeAt(index);// Note: there’s no need to special-case astral symbols, surrogate// pairs, or lone surrogates.// If the character is NULL (U+0000), then the REPLACEMENT CHARACTER// (U+FFFD).if(codeUnit===0x0000){result+='\uFFFD';continue;}// Commaif(codeUnit===44){result+='\\2c ';continue;}if(// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is// U+007F, […](codeUnit>=0x0001&&codeUnit<=0x001f)||codeUnit===0x007f||// If the character is the first character and is in the range [0-9]// (U+0030 to U+0039), […](index===0&&codeUnit>=0x0030&&codeUnit<=0x0039)||// If the character is the second character and is in the range [0-9]// (U+0030 to U+0039) and the first character is a `-` (U+002D), […](index===1&&codeUnit>=0x0030&&codeUnit<=0x0039&&firstCodeUnit===0x002d)){// https://drafts.csswg.org/cssom/#escape-a-character-as-code-pointresult+='\\'+codeUnit.toString(16)+' ';continue;}if(// If the character is the first character and is a `-` (U+002D), and// there is no second character, […]index===0&&length===1&&codeUnit===0x002d){result+='\\'+str.charAt(index);continue;}// If the character is not handled by one of the above rules and is// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to// U+005A), or [a-z] (U+0061 to U+007A), […]if(codeUnit>=0x0080||codeUnit===0x002d||codeUnit===0x005f||(codeUnit>=0x0030&&codeUnit<=0x0039)||(codeUnit>=0x0041&&codeUnit<=0x005a)||(codeUnit>=0x0061&&codeUnit<=0x007a)){// the character itselfresult+=str.charAt(index);continue;}// Otherwise, the escaped character.// https://drafts.csswg.org/cssom/#escape-a-characterresult+='\\'+str.charAt(index);}returnresult;}
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The text was updated successfully, but these errors were encountered: