| 1 |
CodeMirror.registerHelper("fold", "brace", function(cm, start) { |
| 2 |
var line = start.line, lineText = cm.getLine(line); |
| 3 |
var startCh, tokenType; |
| 4 |
|
| 5 |
function findOpening(openCh) { |
| 6 |
for (var at = start.ch, pass = 0;;) { |
| 7 |
var found = at <= 0 ? -1 : lineText.lastIndexOf(openCh, at - 1); |
| 8 |
if (found == -1) { |
| 9 |
if (pass == 1) break; |
| 10 |
pass = 1; |
| 11 |
at = lineText.length; |
| 12 |
continue; |
| 13 |
} |
| 14 |
if (pass == 1 && found < start.ch) break; |
| 15 |
tokenType = cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1)); |
| 16 |
if (!/^(comment|string)/.test(tokenType)) return found + 1; |
| 17 |
at = found - 1; |
| 18 |
} |
| 19 |
} |
| 20 |
|
| 21 |
var startToken = "{", endToken = "}", startCh = findOpening("{"); |
| 22 |
if (startCh == null) { |
| 23 |
startToken = "[", endToken = "]"; |
| 24 |
startCh = findOpening("["); |
| 25 |
} |
| 26 |
|
| 27 |
if (startCh == null) return; |
| 28 |
var count = 1, lastLine = cm.lastLine(), end, endCh; |
| 29 |
outer: for (var i = line; i <= lastLine; ++i) { |
| 30 |
var text = cm.getLine(i), pos = i == line ? startCh : 0; |
| 31 |
for (;;) { |
| 32 |
var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos); |
| 33 |
if (nextOpen < 0) nextOpen = text.length; |
| 34 |
if (nextClose < 0) nextClose = text.length; |
| 35 |
pos = Math.min(nextOpen, nextClose); |
| 36 |
if (pos == text.length) break; |
| 37 |
if (cm.getTokenTypeAt(CodeMirror.Pos(i, pos + 1)) == tokenType) { |
| 38 |
if (pos == nextOpen) ++count; |
| 39 |
else if (!--count) { end = i; endCh = pos; break outer; } |
| 40 |
} |
| 41 |
++pos; |
| 42 |
} |
| 43 |
} |
| 44 |
if (end == null || line == end && endCh == startCh) return; |
| 45 |
return {from: CodeMirror.Pos(line, startCh), |
| 46 |
to: CodeMirror.Pos(end, endCh)}; |
| 47 |
}); |
| 48 |
CodeMirror.braceRangeFinder = CodeMirror.fold.brace; // deprecated |
| 49 |
|
| 50 |
CodeMirror.registerHelper("fold", "import", function(cm, start) { |
| 51 |
function hasImport(line) { |
| 52 |
if (line < cm.firstLine() || line > cm.lastLine()) return null; |
| 53 |
var start = cm.getTokenAt(CodeMirror.Pos(line, 1)); |
| 54 |
if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1)); |
| 55 |
if (start.type != "keyword" || start.string != "import") return null; |
| 56 |
// Now find closing semicolon, return its position |
| 57 |
for (var i = line, e = Math.min(cm.lastLine(), line + 10); i <= e; ++i) { |
| 58 |
var text = cm.getLine(i), semi = text.indexOf(";"); |
| 59 |
if (semi != -1) return {startCh: start.end, end: CodeMirror.Pos(i, semi)}; |
| 60 |
} |
| 61 |
} |
| 62 |
|
| 63 |
var start = start.line, has = hasImport(start), prev; |
| 64 |
if (!has || hasImport(start - 1) || ((prev = hasImport(start - 2)) && prev.end.line == start - 1)) |
| 65 |
return null; |
| 66 |
for (var end = has.end;;) { |
| 67 |
var next = hasImport(end.line + 1); |
| 68 |
if (next == null) break; |
| 69 |
end = next.end; |
| 70 |
} |
| 71 |
return {from: cm.clipPos(CodeMirror.Pos(start, has.startCh + 1)), to: end}; |
| 72 |
}); |
| 73 |
CodeMirror.importRangeFinder = CodeMirror.fold["import"]; // deprecated |
| 74 |
|
| 75 |
CodeMirror.registerHelper("fold", "include", function(cm, start) { |
| 76 |
function hasInclude(line) { |
| 77 |
if (line < cm.firstLine() || line > cm.lastLine()) return null; |
| 78 |
var start = cm.getTokenAt(CodeMirror.Pos(line, 1)); |
| 79 |
if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1)); |
| 80 |
if (start.type == "meta" && start.string.slice(0, 8) == "#include") return start.start + 8; |
| 81 |
} |
| 82 |
|
| 83 |
var start = start.line, has = hasInclude(start); |
| 84 |
if (has == null || hasInclude(start - 1) != null) return null; |
| 85 |
for (var end = start;;) { |
| 86 |
var next = hasInclude(end + 1); |
| 87 |
if (next == null) break; |
| 88 |
++end; |
| 89 |
} |
| 90 |
return {from: CodeMirror.Pos(start, has + 1), |
| 91 |
to: cm.clipPos(CodeMirror.Pos(end))}; |
| 92 |
}); |
| 93 |
CodeMirror.includeRangeFinder = CodeMirror.fold.include; // deprecated |
| 94 |
|
