77 lines
2.7 KiB
JavaScript
77 lines
2.7 KiB
JavaScript
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: https://codemirror.net/LICENSE
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(function(mod) {
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if (typeof exports == "object" && typeof module == "object") // CommonJS
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mod(require("../../lib/codemirror"));
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else if (typeof define == "function" && define.amd) // AMD
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define(["../../lib/codemirror"], mod);
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else // Plain browser env
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mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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CodeMirror.runMode = function(string, modespec, callback, options) {
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var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
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var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
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// Create a tokenizing callback function if passed-in callback is a DOM element.
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if (callback.appendChild) {
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var ie = /MSIE \d/.test(navigator.userAgent);
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var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9);
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var node = callback, col = 0;
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node.innerHTML = "";
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callback = function(text, style) {
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if (text == "\n") {
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// Emitting LF or CRLF on IE8 or earlier results in an incorrect display.
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// Emitting a carriage return makes everything ok.
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node.appendChild(document.createTextNode(ie_lt9 ? '\r' : text));
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col = 0;
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return;
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}
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var content = "";
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// 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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content += 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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content += 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) content += " ";
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pos = idx + 1;
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}
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}
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// Create a node with token style and append it to the callback DOM element.
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if (style) {
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var sp = node.appendChild(document.createElement("span"));
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sp.className = "cm-" + style.replace(/ +/g, " cm-");
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sp.appendChild(document.createTextNode(content));
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} else {
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node.appendChild(document.createTextNode(content));
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}
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};
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}
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var lines = CodeMirror.splitLines(string), state = (options && options.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], null, {
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lookAhead: function(n) { return lines[i + n] },
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baseToken: function() {}
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});
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if (!stream.string && mode.blankLine) mode.blankLine(state);
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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, state, mode);
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stream.start = stream.pos;
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}
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}
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};
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});
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