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- var entityMap = require("../maps/entities.json"),
- legacyMap = require("../maps/legacy.json"),
- xmlMap = require("../maps/xml.json"),
- decodeCodePoint = require("./decode_codepoint.js");
-
- var decodeXMLStrict = getStrictDecoder(xmlMap),
- decodeHTMLStrict = getStrictDecoder(entityMap);
-
- function getStrictDecoder(map) {
- var keys = Object.keys(map).join("|"),
- replace = getReplacer(map);
-
- keys += "|#[xX][\\da-fA-F]+|#\\d+";
-
- var re = new RegExp("&(?:" + keys + ");", "g");
-
- return function(str) {
- return String(str).replace(re, replace);
- };
- }
-
- var decodeHTML = (function() {
- var legacy = Object.keys(legacyMap).sort(sorter);
-
- var keys = Object.keys(entityMap).sort(sorter);
-
- for (var i = 0, j = 0; i < keys.length; i++) {
- if (legacy[j] === keys[i]) {
- keys[i] += ";?";
- j++;
- } else {
- keys[i] += ";";
- }
- }
-
- var re = new RegExp("&(?:" + keys.join("|") + "|#[xX][\\da-fA-F]+;?|#\\d+;?)", "g"),
- replace = getReplacer(entityMap);
-
- function replacer(str) {
- if (str.substr(-1) !== ";") str += ";";
- return replace(str);
- }
-
- //TODO consider creating a merged map
- return function(str) {
- return String(str).replace(re, replacer);
- };
- })();
-
- function sorter(a, b) {
- return a < b ? 1 : -1;
- }
-
- function getReplacer(map) {
- return function replace(str) {
- if (str.charAt(1) === "#") {
- if (str.charAt(2) === "X" || str.charAt(2) === "x") {
- return decodeCodePoint(parseInt(str.substr(3), 16));
- }
- return decodeCodePoint(parseInt(str.substr(2), 10));
- }
- return map[str.slice(1, -1)];
- };
- }
-
- module.exports = {
- XML: decodeXMLStrict,
- HTML: decodeHTML,
- HTMLStrict: decodeHTMLStrict
- };
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