move a few things away in to-be-integrated/

[myslice.git] / to-be-integrated / third-party / codemirror-3.15 / addon / fold / brace-fold.js

diff --git a/to-be-integrated/third-party/codemirror-3.15/addon/fold/brace-fold.js b/to-be-integrated/third-party/codemirror-3.15/addon/fold/brace-fold.js
new file mode 100644 (file)
index 0000000..0b4d7dc
--- /dev/null
+++ b/to-be-integrated/third-party/codemirror-3.15/addon/fold/brace-fold.js
@@ -0,0 +1,93 @@
+CodeMirror.registerHelper("fold", "brace", function(cm, start) {
+  var line = start.line, lineText = cm.getLine(line);
+  var startCh, tokenType;
+
+  function findOpening(openCh) {
+    for (var at = start.ch, pass = 0;;) {
+      var found = lineText.lastIndexOf(openCh, at - 1);
+      if (found == -1) {
+        if (pass == 1) break;
+        pass = 1;
+        at = lineText.length;
+        continue;
+      }
+      if (pass == 1 && found < start.ch) break;
+      tokenType = cm.getTokenAt(CodeMirror.Pos(line, found + 1)).type;
+      if (!/^(comment|string)/.test(tokenType)) return found + 1;
+      at = found - 1;
+    }
+  }
+
+  var startToken = "{", endToken = "}", startCh = findOpening("{");
+  if (startCh == null) {
+    startToken = "[", endToken = "]";
+    startCh = findOpening("[");
+  }
+
+  if (startCh == null) return;
+  var count = 1, lastLine = cm.lastLine(), end, endCh;
+  outer: for (var i = line; i <= lastLine; ++i) {
+    var text = cm.getLine(i), pos = i == line ? startCh : 0;
+    for (;;) {
+      var nextOpen = text.indexOf(startToken, pos), nextClose = text.indexOf(endToken, pos);
+      if (nextOpen < 0) nextOpen = text.length;
+      if (nextClose < 0) nextClose = text.length;
+      pos = Math.min(nextOpen, nextClose);
+      if (pos == text.length) break;
+      if (cm.getTokenAt(CodeMirror.Pos(i, pos + 1)).type == tokenType) {
+        if (pos == nextOpen) ++count;
+        else if (!--count) { end = i; endCh = pos; break outer; }
+      }
+      ++pos;
+    }
+  }
+  if (end == null || line == end && endCh == startCh) return;
+  return {from: CodeMirror.Pos(line, startCh),
+          to: CodeMirror.Pos(end, endCh)};
+});
+CodeMirror.braceRangeFinder = CodeMirror.fold.brace; // deprecated
+
+CodeMirror.registerHelper("fold", "import", function(cm, start) {
+  function hasImport(line) {
+    if (line < cm.firstLine() || line > cm.lastLine()) return null;
+    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
+    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
+    if (start.type != "keyword" || start.string != "import") return null;
+    // Now find closing semicolon, return its position
+    for (var i = line, e = Math.min(cm.lastLine(), line + 10); i <= e; ++i) {
+      var text = cm.getLine(i), semi = text.indexOf(";");
+      if (semi != -1) return {startCh: start.end, end: CodeMirror.Pos(i, semi)};
+    }
+  }
+
+  var start = start.line, has = hasImport(start), prev;
+  if (!has || hasImport(start - 1) || ((prev = hasImport(start - 2)) && prev.end.line == start - 1))
+    return null;
+  for (var end = has.end;;) {
+    var next = hasImport(end.line + 1);
+    if (next == null) break;
+    end = next.end;
+  }
+  return {from: cm.clipPos(CodeMirror.Pos(start, has.startCh + 1)), to: end};
+});
+CodeMirror.importRangeFinder = CodeMirror.fold["import"]; // deprecated
+
+CodeMirror.registerHelper("fold", "include", function(cm, start) {
+  function hasInclude(line) {
+    if (line < cm.firstLine() || line > cm.lastLine()) return null;
+    var start = cm.getTokenAt(CodeMirror.Pos(line, 1));
+    if (!/\S/.test(start.string)) start = cm.getTokenAt(CodeMirror.Pos(line, start.end + 1));
+    if (start.type == "meta" && start.string.slice(0, 8) == "#include") return start.start + 8;
+  }
+
+  var start = start.line, has = hasInclude(start);
+  if (has == null || hasInclude(start - 1) != null) return null;
+  for (var end = start;;) {
+    var next = hasInclude(end + 1);
+    if (next == null) break;
+    ++end;
+  }
+  return {from: CodeMirror.Pos(start, has + 1),
+          to: cm.clipPos(CodeMirror.Pos(end))};
+});
+CodeMirror.includeRangeFinder = CodeMirror.fold.include; // deprecated