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