Current Dev State

static/js/ketcher2/node_modules/entities/lib/decode.js

@@ -0,0 +1,72 @@
+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
+};