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Merge pull request #1086 from ajaxorg/folding-lua

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Folding lua
This commit is contained in:
Garen Torikian 2012-11-07 09:08:15 -08:00
commit 96f534ae81
2 changed files with 165 additions and 0 deletions
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163
lib/ace/mode/folding/lua.js Normal file
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@ -0,0 +1,163 @@
/* ***** BEGIN LICENSE BLOCK *****
* Distributed under the BSD license:
*
* Copyright (c) 2012, 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 oop = require("../../lib/oop");
var BaseFoldMode = require("./fold_mode").FoldMode;
var Range = require("../../range").Range;
var TokenIterator = require("ace/token_iterator").TokenIterator;
var FoldMode = exports.FoldMode = function() {};
oop.inherits(FoldMode, BaseFoldMode);
(function() {
this.foldingStartMarker = /\b(function|then|do|repeat)\b|{\s*$|(\[=*\[)/;
this.foldingStopMarker = /\bend\b|^\s*}|\]=*\]/;
this.getFoldWidget = function(session, foldStyle, row) {
var line = session.getLine(row);
var isStart = this.foldingStartMarker.test(line);
var isEnd = this.foldingStopMarker.test(line);
if (isStart && !isEnd) {
var match = line.match(this.foldingStartMarker);
if (match[1] == "then" && /\belseif\b/.test(line))
return;
if (match[1]) {
if (session.getTokenAt(row, match.index + 1).type === "keyword")
return "start";
} else if (match[2]) {
var type = session.bgTokenizer.getState(row) || "";
if (type.indexOf("comment") != -1 || type.indexOf("string") != -1)
return "start";
} else {
return "start";
}
}
if (foldStyle != "markbeginend" || !isEnd || isStart && isEnd)
return "";
var match = line.match(this.foldingStopMarker);
if (match[0] === "end") {
if (session.getTokenAt(row, match.index + 1).type === "keyword")
return "end";
} else if (match[0][0] === "]") {
var type = session.bgTokenizer.getState(row - 1) || "";
if (type.indexOf("comment") != -1 || type.indexOf("string") != -1)
return "end";
} else
return "end";
};
this.getFoldWidgetRange = function(session, foldStyle, row) {
var line = session.doc.getLine(row);
var match = this.foldingStartMarker.exec(line);
if (match) {
if (match[1])
return this.luaBlock(session, row, match.index + 1);
if (match[2])
return session.getCommentFoldRange(row, match.index + 1);
return this.openingBracketBlock(session, "{", row, match.index);
}
var match = this.foldingStopMarker.exec(line);
if (match) {
if (match[0] === "end") {
if (session.getTokenAt(row, match.index + 1).type === "keyword")
return this.luaBlock(session, row, match.index + 1);
}
if (match[0][0] === "]")
return session.getCommentFoldRange(row, match.index + 1);
return this.closingBracketBlock(session, "}", row, match.index + match[0].length);
}
};
this.luaBlock = function(session, row, column) {
var stream = new TokenIterator(session, row, column);
var indentKeywords = {
"function": 1,
"do": 1,
"then": 1,
"elseif": -1,
"end": -1,
"repeat": 1,
"until": -1,
};
var token = stream.getCurrentToken();
if (!token || token.type != "keyword")
return;
var val = token.value;
var stack = [val];
var dir = indentKeywords[val];
if (!dir)
return;
var startColumn = dir === -1 ? stream.getCurrentTokenColumn() : session.getLine(row).length;
var startRow = row;
stream.step = dir === -1 ? stream.stepBackward : stream.stepForward;
while(token = stream.step()) {
if (token.type !== "keyword")
continue;
var level = dir * indentKeywords[token.value];
if (level > 0) {
stack.unshift(token.value);
} else if (level <= 0) {
stack.shift();
if (!stack.length && token.value != "elseif")
break;
if (level === 0)
stack.unshift(token.value);
}
}
var row = stream.getCurrentTokenRow();
if (dir === -1)
return new Range(row, session.getLine(row).length, startRow, startColumn);
else
return new Range(startRow, startColumn, row, stream.getCurrentTokenColumn());
};
}).call(FoldMode.prototype);
});

2
lib/ace/mode/lua.js
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@ -35,10 +35,12 @@ var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var Tokenizer = require("../tokenizer").Tokenizer;
var LuaHighlightRules = require("./lua_highlight_rules").LuaHighlightRules;
var LuaFoldMode = require("./folding/lua").FoldMode;
var Range = require("../range").Range;
var Mode = function() {
this.$tokenizer = new Tokenizer(new LuaHighlightRules().getRules());
this.foldingRules = new LuaFoldMode();
};
oop.inherits(Mode, TextMode);