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120 lines
4.2 KiB
120 lines
4.2 KiB
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: http://codemirror.net/LICENSE
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/* Just enough of CodeMirror to run runMode under node.js */
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// declare global: StringStream
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function splitLines(string){ return string.split(/\r?\n|\r/); };
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function StringStream(string) {
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this.pos = this.start = 0;
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this.string = string;
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this.lineStart = 0;
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}
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StringStream.prototype = {
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eol: function() {return this.pos >= this.string.length;},
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sol: function() {return this.pos == 0;},
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peek: function() {return this.string.charAt(this.pos) || null;},
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next: function() {
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if (this.pos < this.string.length)
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return this.string.charAt(this.pos++);
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},
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eat: function(match) {
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var ch = this.string.charAt(this.pos);
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if (typeof match == "string") var ok = ch == match;
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else var ok = ch && (match.test ? match.test(ch) : match(ch));
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if (ok) {++this.pos; return ch;}
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},
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eatWhile: function(match) {
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var start = this.pos;
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while (this.eat(match)){}
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return this.pos > start;
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},
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eatSpace: function() {
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var start = this.pos;
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while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
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return this.pos > start;
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},
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skipToEnd: function() {this.pos = this.string.length;},
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skipTo: function(ch) {
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var found = this.string.indexOf(ch, this.pos);
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if (found > -1) {this.pos = found; return true;}
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},
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backUp: function(n) {this.pos -= n;},
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column: function() {return this.start - this.lineStart;},
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indentation: function() {return 0;},
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match: function(pattern, consume, caseInsensitive) {
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if (typeof pattern == "string") {
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var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
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var substr = this.string.substr(this.pos, pattern.length);
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if (cased(substr) == cased(pattern)) {
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if (consume !== false) this.pos += pattern.length;
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return true;
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}
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} else {
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var match = this.string.slice(this.pos).match(pattern);
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if (match && match.index > 0) return null;
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if (match && consume !== false) this.pos += match[0].length;
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return match;
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}
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},
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current: function(){return this.string.slice(this.start, this.pos);},
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hideFirstChars: function(n, inner) {
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this.lineStart += n;
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try { return inner(); }
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finally { this.lineStart -= n; }
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}
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};
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exports.StringStream = StringStream;
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exports.startState = function(mode, a1, a2) {
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return mode.startState ? mode.startState(a1, a2) : true;
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};
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var modes = exports.modes = {}, mimeModes = exports.mimeModes = {};
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exports.defineMode = function(name, mode) {
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if (arguments.length > 2)
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mode.dependencies = Array.prototype.slice.call(arguments, 2);
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modes[name] = mode;
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};
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exports.defineMIME = function(mime, spec) { mimeModes[mime] = spec; };
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exports.defineMode("null", function() {
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return {token: function(stream) {stream.skipToEnd();}};
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});
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exports.defineMIME("text/plain", "null");
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exports.resolveMode = function(spec) {
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if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
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spec = mimeModes[spec];
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} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
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spec = mimeModes[spec.name];
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}
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if (typeof spec == "string") return {name: spec};
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else return spec || {name: "null"};
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};
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exports.getMode = function(options, spec) {
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spec = exports.resolveMode(spec);
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var mfactory = modes[spec.name];
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if (!mfactory) throw new Error("Unknown mode: " + spec);
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return mfactory(options, spec);
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};
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exports.registerHelper = exports.registerGlobalHelper = Math.min;
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exports.runMode = function(string, modespec, callback, options) {
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var mode = exports.getMode({indentUnit: 2}, modespec);
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var lines = splitLines(string), state = (options && options.state) || exports.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 exports.StringStream(lines[i]);
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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);
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stream.start = stream.pos;
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}
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}
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};
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require.cache[require.resolve("../../lib/codemirror")] = require.cache[require.resolve("./runmode.node")];
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