wcfsetup/install/files/js/3rdParty/codemirror/addon/fold/brace-fold.js

   1 (function(mod) {
   2   if (typeof exports == "object" && typeof module == "object") // CommonJS
   3     mod(require("../../lib/codemirror"));
   4   else if (typeof define == "function" && define.amd) // AMD
   5     define(["../../lib/codemirror"], mod);
   6   else // Plain browser env
   7     mod(CodeMirror);
   8 })(function(CodeMirror) {
   9 "use strict";
  10
  11 CodeMirror.registerHelper("fold", "brace", function(cm, start) {
  12   var line = start.line, lineText = cm.getLine(line);
  13   var startCh, tokenType;
  14
  15   function findOpening(openCh) {
  16     for (var at = start.ch, pass = 0;;) {
  17       var found = at <= 0 ? -1 : lineText.lastIndexOf(openCh, at - 1);
  18       if (found == -1) {
  19         if (pass == 1) break;
  20         pass = 1;
  21         at = lineText.length;
  22         continue;
  23       }
  24       if (pass == 1 && found < start.ch) break;
  25       tokenType = cm.getTokenTypeAt(CodeMirror.Pos(line, found + 1));
  26       if (!/^(comment|string)/.test(tokenType)) return found + 1;
  27       at = found - 1;
  28     }
  29   }
  30
  31   var startToken = "{", endToken = "}", startCh = findOpening("{");
  32   if (startCh == null) {
  33     startToken = "[", endToken = "]";
  34     startCh = findOpening("[");
  35   }
  36
  37   if (startCh == null) return;
  38   var count = 1, lastLine = cm.lastLine(), end, endCh;
  39   outer: for (var i = line; i <= lastLine; ++i) {
  40     var text = cm.getLine(i), pos = i == line ? startCh : 0;
  41     for (;;) {
  42       var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
  43       if (nextOpen < 0) nextOpen = text.length;
  44       if (nextClose < 0) nextClose = text.length;
  45       pos = Math.min(nextOpen, nextClose);
  46       if (pos == text.length) break;
  47       if (cm.getTokenTypeAt(CodeMirror.Pos(i, pos + 1)) == tokenType) {
  48         if (pos == nextOpen) ++count;
  49         else if (!--count) { end = i; endCh = pos; break outer; }
  50       }
  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 CodeMirror.registerHelper("fold", "import", function(cm, start) {
  60   function hasImport(line) {
  61     if (line < cm.firstLine() || line > cm.lastLine()) return null;
  62     var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
  63     if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
  64     if (start.type != "keyword" || start.string != "import") return null;
  65     // Now find closing semicolon, return its position
  66     for (var i = line, e = Math.min(cm.lastLine(), line + 10); i <= e; ++i) {
  67       var text = cm.getLine(i), semi = text.indexOf(";");
  68       if (semi != -1) return {startCh: start.end, end: CodeMirror.Pos(i, semi)};
  69     }
  70   }
  71
  72   var start = start.line, has = hasImport(start), prev;
  73   if (!has || hasImport(start - 1) || ((prev = hasImport(start - 2)) && prev.end.line == start - 1))
  74     return null;
  75   for (var end = has.end;;) {
  76     var next = hasImport(end.line + 1);
  77     if (next == null) break;
  78     end = next.end;
  79   }
  80   return {from: cm.clipPos(CodeMirror.Pos(start, has.startCh + 1)), to: end};
  81 });
  82
  83 CodeMirror.registerHelper("fold", "include", function(cm, start) {
  84   function hasInclude(line) {
  85     if (line < cm.firstLine() || line > cm.lastLine()) return null;
  86     var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
  87     if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
  88     if (start.type == "meta" && start.string.slice(0, 8) == "#include") return start.start + 8;
  89   }
  90
  91   var start = start.line, has = hasInclude(start);
  92   if (has == null || hasInclude(start - 1) != null) return null;
  93   for (var end = start;;) {
  94     var next = hasInclude(end + 1);
  95     if (next == null) break;
  96     ++end;
  97   }
  98   return {from: CodeMirror.Pos(start, has + 1),
  99           to: cm.clipPos(CodeMirror.Pos(end))};
 100 });
 101
 102 });