| 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.registerHelper("fold", "markdown", function(cm, start) { |
| 15 |
var maxDepth = 100; |
| 16 |
|
| 17 |
function isHeader(lineNo) { |
| 18 |
var tokentype = cm.getTokenTypeAt(CodeMirror.Pos(lineNo, 0)); |
| 19 |
return tokentype && /\bheader\b/.test(tokentype); |
| 20 |
} |
| 21 |
|
| 22 |
function headerLevel(lineNo, line, nextLine) { |
| 23 |
var match = line && line.match(/^#+/); |
| 24 |
if (match && isHeader(lineNo)) return match[0].length; |
| 25 |
match = nextLine && nextLine.match(/^[=\-]+\s*$/); |
| 26 |
if (match && isHeader(lineNo + 1)) return nextLine[0] == "=" ? 1 : 2; |
| 27 |
return maxDepth; |
| 28 |
} |
| 29 |
|
| 30 |
var firstLine = cm.getLine(start.line), nextLine = cm.getLine(start.line + 1); |
| 31 |
var level = headerLevel(start.line, firstLine, nextLine); |
| 32 |
if (level === maxDepth) return undefined; |
| 33 |
|
| 34 |
var lastLineNo = cm.lastLine(); |
| 35 |
var end = start.line, nextNextLine = cm.getLine(end + 2); |
| 36 |
while (end < lastLineNo) { |
| 37 |
if (headerLevel(end + 1, nextLine, nextNextLine) <= level) break; |
| 38 |
++end; |
| 39 |
nextLine = nextNextLine; |
| 40 |
nextNextLine = cm.getLine(end + 2); |
| 41 |
} |
| 42 |
|
| 43 |
return { |
| 44 |
from: CodeMirror.Pos(start.line, firstLine.length), |
| 45 |
to: CodeMirror.Pos(end, cm.getLine(end).length) |
| 46 |
}; |
| 47 |
}); |
| 48 |
|
| 49 |
}); |
| 50 |
|
