1 |
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2 |
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3 |
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4 | (function(mod) {
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5 | if (typeof exports == "object" && typeof module == "object")
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6 | mod(require("../../lib/codemirror"));
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7 | else if (typeof define == "function" && define.amd)
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8 | define(["../../lib/codemirror"], mod);
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9 | else
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10 | mod(CodeMirror);
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11 | })(function(CodeMirror) {
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12 | "use strict";
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13 |
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14 | CodeMirror.registerGlobalHelper("fold", "comment", function(mode) {
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15 | return mode.blockCommentStart && mode.blockCommentEnd;
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16 | }, function(cm, start) {
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17 | var mode = cm.getModeAt(start), startToken = mode.blockCommentStart, endToken = mode.blockCommentEnd;
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18 | if (!startToken || !endToken) return;
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19 | var line = start.line, lineText = cm.getLine(line);
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20 |
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21 | var startCh;
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22 | for (var at = start.ch, pass = 0;;) {
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23 | var found = at <= 0 ? -1 : lineText.lastIndexOf(startToken, at - 1);
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24 | if (found == -1) {
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25 | if (pass == 1) return;
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26 | pass = 1;
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27 | at = lineText.length;
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28 | continue;
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29 | }
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30 | if (pass == 1 && found < start.ch) return;
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31 | if (/comment/.test(cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1))) &&
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32 | (found == 0 || lineText.slice(found - endToken.length, found) == endToken ||
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33 | !/comment/.test(cm.getTokenTypeAt(CodeMirror.Pos(line, found))))) {
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34 | startCh = found + startToken.length;
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35 | break;
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36 | }
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37 | at = found - 1;
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38 | }
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39 |
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40 | var depth = 1, lastLine = cm.lastLine(), end, endCh;
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41 | outer: for (var i = line; i <= lastLine; ++i) {
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42 | var text = cm.getLine(i), pos = i == line ? startCh : 0;
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43 | for (;;) {
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44 | var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
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45 | if (nextOpen < 0) nextOpen = text.length;
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46 | if (nextClose < 0) nextClose = text.length;
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47 | pos = Math.min(nextOpen, nextClose);
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48 | if (pos == text.length) break;
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49 | if (pos == nextOpen) ++depth;
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50 | else if (!--depth) { end = i; endCh = pos; break outer; }
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51 | ++pos;
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52 | }
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53 | }
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54 | if (end == null || line == end && endCh == startCh) return;
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55 | return {from: CodeMirror.Pos(line, startCh),
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56 | to: CodeMirror.Pos(end, endCh)};
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57 | });
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58 |
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59 | });
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