132 lines
No EOL
4.1 KiB
JavaScript
132 lines
No EOL
4.1 KiB
JavaScript
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Ajax.org Code Editor (ACE).
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*
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* The Initial Developer of the Original Code is
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* Ajax.org Services B.V.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Fabian Jakobs <fabian AT ajax DOT org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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var Tokenizer = function(rules) {
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this.rules = rules;
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this.regExps = {};
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for ( var key in this.rules) {
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var state = this.rules[key];
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var ruleRegExps = [];
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for ( var i = 0; i < state.length; i++) {
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ruleRegExps.push(state[i].regex);
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};
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this.regExps[key] = new RegExp("(?:(" + ruleRegExps.join(")|(") + ")|(.))", "g");
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}
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};
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(function() {
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this.getLineTokens = function(line, startState) {
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var currentState = startState;
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var state = this.rules[currentState];
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var re = this.regExps[currentState];
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re.lastIndex = 0;
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var match, tokens = [];
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var lastIndex = 0;
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var token = {
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type: null,
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value: ""
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};
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while (match = re.exec(line)) {
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var type = "text";
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var value = match[0];
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if (re.lastIndex == lastIndex) { throw new Error("tokenizer error"); }
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lastIndex = re.lastIndex;
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window.LOG && console.log(currentState, match);
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for ( var i = 0; i < state.length; i++) {
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if (match[i + 1]) {
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if (typeof state[i].token == "function") {
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type = state[i].token(match[0]);
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}
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else {
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type = state[i].token;
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}
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if (state[i].next && state[i].next !== currentState) {
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currentState = state[i].next;
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var state = this.rules[currentState];
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var lastIndex = re.lastIndex;
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var re = this.regExps[currentState];
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re.lastIndex = lastIndex;
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}
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break;
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}
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};
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if (token.type !== type) {
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if (token.type) {
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tokens.push(token);
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}
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token = {
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type: type,
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value: value
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};
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} else {
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token.value += value;
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}
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};
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if (token.type) {
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tokens.push(token);
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}
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window.LOG && console.log(tokens, currentState);
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return {
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tokens : tokens,
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state : currentState
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};
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};
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}).call(Tokenizer.prototype);
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return Tokenizer;
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}); |