112 lines
4.3 KiB
JavaScript
112 lines
4.3 KiB
JavaScript
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/* ***** BEGIN LICENSE BLOCK *****
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* Distributed under the BSD license:
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*
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* Copyright (c) 2010, Ajax.org B.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Ajax.org B.V. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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"use strict";
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var oop = require("../../lib/oop");
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var Range = require("../../range").Range;
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var BaseFoldMode = require("./cstyle").FoldMode;
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var FoldMode = exports.FoldMode = function() {};
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oop.inherits(FoldMode, BaseFoldMode);
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(function() {
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/**
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* Inheriting cstyle folding because it handles the region comment folding
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* and special block comment folding appropriately.
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*
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* Cstyle's getCommentRegionBlock() contains the sql comment characters '--' for end region block.
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*/
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this.foldingStartMarker = /(\bCASE\b|\bBEGIN\b)|^\s*(\/\*)/i;
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// this.foldingStopMarker = /(\bEND\b)|^[\s\*]*(\*\/)/i;
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this.startRegionRe = /^\s*(\/\*|--)#?region\b/;
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this.getFoldWidgetRange = function(session, foldStyle, row, forceMultiline) {
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var line = session.getLine(row);
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if (this.startRegionRe.test(line)) return this.getCommentRegionBlock(session, line, row);
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var match = line.match(this.foldingStartMarker);
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if (match) {
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var i = match.index;
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if (match[1]) return this.getBeginEndBlock(session, row, i, match[1]);
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var range = session.getCommentFoldRange(row, i + match[0].length, 1);
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if (range && !range.isMultiLine()) {
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if (forceMultiline) {
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range = this.getSectionRange(session, row);
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}
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else if (foldStyle != "all") range = null;
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}
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return range;
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}
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if (foldStyle === "markbegin") return;
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//TODO: add support for end folding markers
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return;
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};
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/**
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* @returns {range} folding block for sequence that starts with 'CASE' or 'BEGIN' and ends with 'END'
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* @param {string} matchSequence - the sequence of charaters that started the fold widget, which should remain visible when the fold widget is folded
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*/
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this.getBeginEndBlock = function(session, row, column, matchSequence) {
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var start = {
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row: row,
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column: column + matchSequence.length
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};
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var maxRow = session.getLength();
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var line;
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var depth = 1;
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var re = /(\bCASE\b|\bBEGIN\b)|(\bEND\b)/i;
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while (++row < maxRow) {
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line = session.getLine(row);
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var m = re.exec(line);
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if (!m) continue;
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if (m[1]) depth++;
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else depth--;
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if (!depth) break;
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}
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var endRow = row;
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if (endRow > start.row) {
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return new Range(start.row, start.column, endRow, line.length);
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}
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};
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}).call(FoldMode.prototype);
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});
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