big-moving.ru/api/soft/Ace/lib/ace/mode/text_highlight_rules.js

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2022-06-24 15:29:23 +05:00
/* ***** 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];
var toInsert = null;
if (Array.isArray(rule)) {
toInsert = rule;
rule = {};
}
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];
}
}
}
var includeName = typeof rule == "string" ? rule : rule.include;
if (includeName) {
if (Array.isArray(includeName))
toInsert = includeName.map(function(x) { return rules[x]; });
else
toInsert = rules[includeName];
}
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--;
}
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;
});