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- /* ***** BEGIN LICENSE BLOCK *****
- * Distributed under the BSD license:
- *
- * Copyright (c) 2010, Ajax.org B.V.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of Ajax.org B.V. nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * ***** END LICENSE BLOCK ***** */
- define(function(require, exports, module) {
- "use strict";
- var lang = require("../lib/lang");
- var TextHighlightRules = function() {
- // regexp must not have capturing parentheses
- // regexps are ordered -> the first match is used
- this.$rules = {
- "start" : [{
- token : "empty_line",
- regex : '^$'
- }, {
- defaultToken : "text"
- }]
- };
- };
- (function() {
- this.addRules = function(rules, prefix) {
- if (!prefix) {
- for (var key in rules)
- this.$rules[key] = rules[key];
- return;
- }
- for (var key in rules) {
- var state = rules[key];
- for (var i = 0; i < state.length; i++) {
- var rule = state[i];
- if (rule.next || rule.onMatch) {
- if (typeof rule.next == "string") {
- if (rule.next.indexOf(prefix) !== 0)
- rule.next = prefix + rule.next;
- }
- if (rule.nextState && rule.nextState.indexOf(prefix) !== 0)
- rule.nextState = prefix + rule.nextState;
- }
- }
- this.$rules[prefix + key] = state;
- }
- };
- this.getRules = function() {
- return this.$rules;
- };
- this.embedRules = function (HighlightRules, prefix, escapeRules, states, append) {
- var embedRules = typeof HighlightRules == "function"
- ? new HighlightRules().getRules()
- : HighlightRules;
- if (states) {
- for (var i = 0; i < states.length; i++)
- states[i] = prefix + states[i];
- } else {
- states = [];
- for (var key in embedRules)
- states.push(prefix + key);
- }
- this.addRules(embedRules, prefix);
- if (escapeRules) {
- var addRules = Array.prototype[append ? "push" : "unshift"];
- for (var i = 0; i < states.length; i++)
- addRules.apply(this.$rules[states[i]], lang.deepCopy(escapeRules));
- }
- if (!this.$embeds)
- this.$embeds = [];
- this.$embeds.push(prefix);
- };
- this.getEmbeds = function() {
- return this.$embeds;
- };
- var pushState = function(currentState, stack) {
- if (currentState != "start" || stack.length)
- stack.unshift(this.nextState, currentState);
- return this.nextState;
- };
- var popState = function(currentState, stack) {
- // if (stack[0] === currentState)
- stack.shift();
- return stack.shift() || "start";
- };
- this.normalizeRules = function() {
- var id = 0;
- var rules = this.$rules;
- function processState(key) {
- var state = rules[key];
- state.processed = true;
- for (var i = 0; i < state.length; i++) {
- var rule = state[i];
- if (!rule.regex && rule.start) {
- rule.regex = rule.start;
- if (!rule.next)
- rule.next = [];
- rule.next.push({
- defaultToken: rule.token
- }, {
- token: rule.token + ".end",
- regex: rule.end || rule.start,
- next: "pop"
- });
- rule.token = rule.token + ".start";
- rule.push = true;
- }
- var next = rule.next || rule.push;
- if (next && Array.isArray(next)) {
- var stateName = rule.stateName;
- if (!stateName) {
- stateName = rule.token;
- if (typeof stateName != "string")
- stateName = stateName[0] || "";
- if (rules[stateName])
- stateName += id++;
- }
- rules[stateName] = next;
- rule.next = stateName;
- processState(stateName);
- } else if (next == "pop") {
- rule.next = popState;
- }
- if (rule.push) {
- rule.nextState = rule.next || rule.push;
- rule.next = pushState;
- delete rule.push;
- }
- if (rule.rules) {
- for (var r in rule.rules) {
- if (rules[r]) {
- if (rules[r].push)
- rules[r].push.apply(rules[r], rule.rules[r]);
- } else {
- rules[r] = rule.rules[r];
- }
- }
- }
- if (rule.include || typeof rule == "string") {
- var includeName = rule.include || rule;
- var toInsert = rules[includeName];
- } else if (Array.isArray(rule))
- toInsert = rule;
- if (toInsert) {
- var args = [i, 1].concat(toInsert);
- if (rule.noEscape)
- args = args.filter(function(x) {return !x.next;});
- state.splice.apply(state, args);
- // skip included rules since they are already processed
- //i += args.length - 3;
- i--;
- toInsert = null;
- }
-
- if (rule.keywordMap) {
- rule.token = this.createKeywordMapper(
- rule.keywordMap, rule.defaultToken || "text", rule.caseInsensitive
- );
- delete rule.defaultToken;
- }
- }
- }
- Object.keys(rules).forEach(processState, this);
- };
- this.createKeywordMapper = function(map, defaultToken, ignoreCase, splitChar) {
- var keywords = Object.create(null);
- Object.keys(map).forEach(function(className) {
- var a = map[className];
- if (ignoreCase)
- a = a.toLowerCase();
- var list = a.split(splitChar || "|");
- for (var i = list.length; i--; )
- keywords[list[i]] = className;
- });
- // in old versions of opera keywords["__proto__"] sets prototype
- // even on objects with __proto__=null
- if (Object.getPrototypeOf(keywords)) {
- keywords.__proto__ = null;
- }
- this.$keywordList = Object.keys(keywords);
- map = null;
- return ignoreCase
- ? function(value) {return keywords[value.toLowerCase()] || defaultToken }
- : function(value) {return keywords[value] || defaultToken };
- };
- this.getKeywords = function() {
- return this.$keywords;
- };
- }).call(TextHighlightRules.prototype);
- exports.TextHighlightRules = TextHighlightRules;
- });
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