笙默考试管理系统-MyExamTest----codemirror(34)
目录
addMark: function(mark) {
mark.attach(this);
if (this.marked == null) this.marked = [];
this.marked.push(mark);
this.marked.sort(function(a, b){return (a.from || 0) - (b.from || 0);});
},
// Run the given mode's parser over a line, update the styles
// array, which contains alternating fragments of text and CSS
// classes.
highlight: function(mode, state, tabSize) {
var stream = new StringStream(this.text, tabSize), st = this.styles, pos = 0;
var changed = false, curWord = st[0], prevWord;
if (this.text == "" && mode.blankLine) mode.blankLine(state);
while (!stream.eol()) {
var style = mode.token(stream, state);
var substr = this.text.slice(stream.start, stream.pos);
stream.start = stream.pos;
if (pos && st[pos-1] == style)
st[pos-2] += substr;
else if (substr) {
if (!changed && (st[pos+1] != style || (pos && st[pos-2] != prevWord))) changed = true;
st[pos++] = substr; st[pos++] = style;
prevWord = curWord; curWord = st[pos];
}
// Give up when line is ridiculously long
if (stream.pos > 5000) {
st[pos++] = this.text.slice(stream.pos); st[pos++] = null;
break;
}
}
if (st.length != pos) {st.length = pos; changed = true;}
if (pos && st[pos-2] != prevWord) changed = true;
// Short lines with simple highlights return null, and are
// counted as changed by the driver because they are likely to
// highlight the same way in various contexts.
return changed || (st.length < 5 && this.text.length < 10 ? null : false);
},
// Fetch the parser token for a given character. Useful for hacks
// that want to inspect the mode state (say, for completion).
getTokenAt: function(mode, state, ch) {
var txt = this.text, stream = new StringStream(txt);
while (stream.pos < ch && !stream.eol()) {
stream.start = stream.pos;
var style = mode.token(stream, state);
}