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- /* ***** 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("../../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[0] == "bracketedComment" || type[0] == "bracketedString")
- 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[0] == "bracketedComment" || type[0] == "bracketedString")
- 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);
- });
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