| 1 |
// CodeMirror, copyright (c) by Marijn Haverbeke and others |
| 2 |
// Distributed under an MIT license: http://codemirror.net/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 |
}); |
| 60 |
|
