53 Zeilen
1.9 KiB
JavaScript
53 Zeilen
1.9 KiB
JavaScript
// Utility function that allows modes to be combined. The mode given
|
|
// as the base argument takes care of most of the normal mode
|
|
// functionality, but a second (typically simple) mode is used, which
|
|
// can override the style of text. Both modes get to parse all of the
|
|
// text, but when both assign a non-null style to a piece of code, the
|
|
// overlay wins, unless the combine argument was true, in which case
|
|
// the styles are combined.
|
|
|
|
// overlayParser is the old, deprecated name
|
|
CodeMirror.overlayMode = CodeMirror.overlayParser = function(base, overlay, combine) {
|
|
return {
|
|
startState: function() {
|
|
return {
|
|
base: CodeMirror.startState(base),
|
|
overlay: CodeMirror.startState(overlay),
|
|
basePos: 0, baseCur: null,
|
|
overlayPos: 0, overlayCur: null
|
|
};
|
|
},
|
|
copyState: function(state) {
|
|
return {
|
|
base: CodeMirror.copyState(base, state.base),
|
|
overlay: CodeMirror.copyState(overlay, state.overlay),
|
|
basePos: state.basePos, baseCur: null,
|
|
overlayPos: state.overlayPos, overlayCur: null
|
|
};
|
|
},
|
|
|
|
token: function(stream, state) {
|
|
if (stream.start == state.basePos) {
|
|
state.baseCur = base.token(stream, state.base);
|
|
state.basePos = stream.pos;
|
|
}
|
|
if (stream.start == state.overlayPos) {
|
|
stream.pos = stream.start;
|
|
state.overlayCur = overlay.token(stream, state.overlay);
|
|
state.overlayPos = stream.pos;
|
|
}
|
|
stream.pos = Math.min(state.basePos, state.overlayPos);
|
|
if (stream.eol()) state.basePos = state.overlayPos = 0;
|
|
|
|
if (state.overlayCur == null) return state.baseCur;
|
|
if (state.baseCur != null && combine) return state.baseCur + " " + state.overlayCur;
|
|
else return state.overlayCur;
|
|
},
|
|
|
|
indent: base.indent && function(state, textAfter) {
|
|
return base.indent(state.base, textAfter);
|
|
},
|
|
electricChars: base.electricChars
|
|
};
|
|
};
|