1 CodeMirror.registerHelper("fold", "brace", function(cm, start) {
2 var line = start.line, lineText = cm.getLine(line);
3 var startCh, tokenType;
5 function findOpening(openCh) {
6 for (var at = start.ch, pass = 0;;) {
7 var found = lineText.lastIndexOf(openCh, at - 1);
14 if (pass == 1 && found < start.ch) break;
15 tokenType = cm.getTokenAt(CodeMirror.Pos(line, found + 1)).type;
16 if (!/^(comment|string)/.test(tokenType)) return found + 1;
21 var startToken = "{", endToken = "}", startCh = findOpening("{");
22 if (startCh == null) {
23 startToken = "[", endToken = "]";
24 startCh = findOpening("[");
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;
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.getTokenAt(CodeMirror.Pos(i, pos + 1)).type == tokenType) {
38 if (pos == nextOpen) ++count;
39 else if (!--count) { end = i; endCh = pos; break outer; }
44 if (end == null || line == end && endCh == startCh) return;
45 return {from: CodeMirror.Pos(line, startCh),
46 to: CodeMirror.Pos(end, endCh)};
48 CodeMirror.braceRangeFinder = CodeMirror.fold.brace; // deprecated
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)};
63 var start = start.line, has = hasImport(start), prev;
64 if (!has || hasImport(start - 1) || ((prev = hasImport(start - 2)) && prev.end.line == start - 1))
66 for (var end = has.end;;) {
67 var next = hasImport(end.line + 1);
68 if (next == null) break;
71 return {from: cm.clipPos(CodeMirror.Pos(start, has.startCh + 1)), to: end};
73 CodeMirror.importRangeFinder = CodeMirror.fold["import"]; // deprecated
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;
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;
90 return {from: CodeMirror.Pos(start, has + 1),
91 to: cm.clipPos(CodeMirror.Pos(end))};
93 CodeMirror.includeRangeFinder = CodeMirror.fold.include; // deprecated