1 line
2.1 KiB
JavaScript
1 line
2.1 KiB
JavaScript
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var _extends=Object.assign||function(target){for(var i=1;i<arguments.length;i++){var source=arguments[i];for(var key in source){if(Object.prototype.hasOwnProperty.call(source,key)){target[key]=source[key];}}}return target;};var _=require('lodash');var fs=require('fs');function extractGlyphMapFromCss(files,selectorPattern){var styleRulePattern='(\\.[A-Za-z0-9_.:, \\n\\t-]+)\\{[^}]*content: ?["\\\'](?:\\\\([A-Fa-f0-9]+)|([^"\\\']+))["\\\'][^}]*\\}';var allStyleRules=new RegExp(styleRulePattern,'g');var singleStyleRules=new RegExp(styleRulePattern);var allSelectors=new RegExp(selectorPattern,'g');var singleSelector=new RegExp(selectorPattern);var extractGlyphFromRule=function extractGlyphFromRule(rule){var ruleParts=rule.match(singleStyleRules);if(ruleParts[2]){return parseInt(ruleParts[2],16);}else if(ruleParts[3].length>1){return ruleParts[3];}return ruleParts[3].charCodeAt();};var extractSelectorsFromRule=function extractSelectorsFromRule(rule){var ruleParts=rule.match(singleStyleRules);var selectors=ruleParts[1].match(allSelectors)||[];return selectors.map(function(selector){return selector.match(singleSelector)[1];});};return(typeof files==='string'?[files]:files).map(function(fileName){return fs.readFileSync(fileName,{encoding:'utf8'});}).map(function(contents){return contents.match(allStyleRules)||[];}).reduce(function(acc,rules){return acc.concat(rules);},[]).map(function(rule){var glyph=extractGlyphFromRule(rule);var selectors=extractSelectorsFromRule(rule);return selectors.map(function(selector){return[selector,glyph];});}).reduce(function(acc,glyphs){return _extends(acc,_.fromPairs(glyphs));},{});}function escapeRegExp(str){return str.replace(/[-[\]/{}()*+?.\\^$|]/g,'\\$&');}function generateIconSetFromCss(cssFiles,selectorPrefix,template){var data=arguments.length>3&&arguments[3]!==undefined?arguments[3]:{};var glyphMap=extractGlyphMapFromCss(cssFiles,escapeRegExp(selectorPrefix)+'([A-Za-z0-9_-]+):before');var content=JSON.stringify(glyphMap,null,' ');if(template){return _.template(template)(_extends({glyphMap:content},data));}return content;}module.exports=generateIconSetFromCss;
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