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authorNivesh Rajbhandari2012-02-20 11:14:44 -0800
committerNivesh Rajbhandari2012-02-20 11:14:44 -0800
commitabf78e2d7a97d295ce5a1c425fd359d47379137e (patch)
treed08c91bd2aef31e6325e0b499b2ffc390018bec6 /imports/codemirror/lib/util/overlay.js
parente80a79bff57fecf3aa9b869d8ed2de5fd815287c (diff)
parente23708721a71ca4c71365f5f8e8ac7d6113926db (diff)
downloadninja-abf78e2d7a97d295ce5a1c425fd359d47379137e.tar.gz
Merge branch 'refs/heads/ninja-internal' into ToolFixes
Diffstat (limited to 'imports/codemirror/lib/util/overlay.js')
-rwxr-xr-ximports/codemirror/lib/util/overlay.js51
1 files changed, 51 insertions, 0 deletions
diff --git a/imports/codemirror/lib/util/overlay.js b/imports/codemirror/lib/util/overlay.js
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1// Utility function that allows modes to be combined. The mode given
2// as the base argument takes care of most of the normal mode
3// functionality, but a second (typically simple) mode is used, which
4// can override the style of text. Both modes get to parse all of the
5// text, but when both assign a non-null style to a piece of code, the
6// overlay wins, unless the combine argument was true, in which case
7// the styles are combined.
8
9CodeMirror.overlayParser = function(base, overlay, combine) {
10 return {
11 startState: function() {
12 return {
13 base: CodeMirror.startState(base),
14 overlay: CodeMirror.startState(overlay),
15 basePos: 0, baseCur: null,
16 overlayPos: 0, overlayCur: null
17 };
18 },
19 copyState: function(state) {
20 return {
21 base: CodeMirror.copyState(base, state.base),
22 overlay: CodeMirror.copyState(overlay, state.overlay),
23 basePos: state.basePos, baseCur: null,
24 overlayPos: state.overlayPos, overlayCur: null
25 };
26 },
27
28 token: function(stream, state) {
29 if (stream.start == state.basePos) {
30 state.baseCur = base.token(stream, state.base);
31 state.basePos = stream.pos;
32 }
33 if (stream.start == state.overlayPos) {
34 stream.pos = stream.start;
35 state.overlayCur = overlay.token(stream, state.overlay);
36 state.overlayPos = stream.pos;
37 }
38 stream.pos = Math.min(state.basePos, state.overlayPos);
39 if (stream.eol()) state.basePos = state.overlayPos = 0;
40
41 if (state.overlayCur == null) return state.baseCur;
42 if (state.baseCur != null && combine) return state.baseCur + " " + state.overlayCur;
43 else return state.overlayCur;
44 },
45
46 indent: function(state, textAfter) {
47 return base.indent(state.base, textAfter);
48 },
49 electricChars: base.electricChars
50 };
51};