.config/coc/extensions/node_modules/coc-prettier/node_modules/entities/lib/encode.js

   1 var inverseXML = getInverseObj(require("../maps/xml.json")),
   2     xmlReplacer = getInverseReplacer(inverseXML);
   3
   4 exports.XML = getInverse(inverseXML, xmlReplacer);
   5
   6 var inverseHTML = getInverseObj(require("../maps/entities.json")),
   7     htmlReplacer = getInverseReplacer(inverseHTML);
   8
   9 exports.HTML = getInverse(inverseHTML, htmlReplacer);
  10
  11 function getInverseObj(obj) {
  12     return Object.keys(obj)
  13         .sort()
  14         .reduce(function(inverse, name) {
  15             inverse[obj[name]] = "&" + name + ";";
  16             return inverse;
  17         }, {});
  18 }
  19
  20 function getInverseReplacer(inverse) {
  21     var single = [],
  22         multiple = [];
  23
  24     Object.keys(inverse).forEach(function(k) {
  25         if (k.length === 1) {
  26             single.push("\\" + k);
  27         } else {
  28             multiple.push(k);
  29         }
  30     });
  31
  32     //TODO add ranges
  33     multiple.unshift("[" + single.join("") + "]");
  34
  35     return new RegExp(multiple.join("|"), "g");
  36 }
  37
  38 var re_nonASCII = /[^\0-\x7F]/g,
  39     re_astralSymbols = /[\uD800-\uDBFF][\uDC00-\uDFFF]/g;
  40
  41 function singleCharReplacer(c) {
  42     return (
  43         "&#x" +
  44         c
  45             .charCodeAt(0)
  46             .toString(16)
  47             .toUpperCase() +
  48         ";"
  49     );
  50 }
  51
  52 function astralReplacer(c) {
  53     // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
  54     var high = c.charCodeAt(0);
  55     var low = c.charCodeAt(1);
  56     var codePoint = (high - 0xd800) * 0x400 + low - 0xdc00 + 0x10000;
  57     return "&#x" + codePoint.toString(16).toUpperCase() + ";";
  58 }
  59
  60 function getInverse(inverse, re) {
  61     function func(name) {
  62         return inverse[name];
  63     }
  64
  65     return function(data) {
  66         return data
  67             .replace(re, func)
  68             .replace(re_astralSymbols, astralReplacer)
  69             .replace(re_nonASCII, singleCharReplacer);
  70     };
  71 }
  72
  73 var re_xmlChars = getInverseReplacer(inverseXML);
  74
  75 function escapeXML(data) {
  76     return data
  77         .replace(re_xmlChars, singleCharReplacer)
  78         .replace(re_astralSymbols, astralReplacer)
  79         .replace(re_nonASCII, singleCharReplacer);
  80 }
  81
  82 exports.escape = escapeXML;