54 lines
1.6 KiB
JavaScript
54 lines
1.6 KiB
JavaScript
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CodeMirror.runMode = function(string, modespec, callback, options) {
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function esc(str) {
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return str.replace(/[<&]/g, function(ch) { return ch == "<" ? "<" : "&"; });
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}
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var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
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var isNode = callback.nodeType == 1;
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var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
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if (isNode) {
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var node = callback, accum = [], col = 0;
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callback = function(text, style) {
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if (text == "\n") {
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accum.push("<br>");
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col = 0;
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return;
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}
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var escaped = "";
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// HTML-escape and replace tabs
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for (var pos = 0;;) {
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var idx = text.indexOf("\t", pos);
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if (idx == -1) {
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escaped += esc(text.slice(pos));
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col += text.length - pos;
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break;
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} else {
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col += idx - pos;
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escaped += esc(text.slice(pos, idx));
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var size = tabSize - col % tabSize;
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col += size;
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for (var i = 0; i < size; ++i) escaped += " ";
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pos = idx + 1;
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}
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}
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if (style)
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accum.push("<span class=\"cm-" + esc(style) + "\">" + escaped + "</span>");
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else
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accum.push(escaped);
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};
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}
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var lines = CodeMirror.splitLines(string), state = CodeMirror.startState(mode);
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for (var i = 0, e = lines.length; i < e; ++i) {
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if (i) callback("\n");
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var stream = new CodeMirror.StringStream(lines[i]);
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while (!stream.eol()) {
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var style = mode.token(stream, state);
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callback(stream.current(), style, i, stream.start);
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stream.start = stream.pos;
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}
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}
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if (isNode)
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node.innerHTML = accum.join("");
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};
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