198 lines
6.9 KiB
JavaScript
198 lines
6.9 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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/* Just enough of CodeMirror to run runMode under node.js */
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function splitLines(string){return string.split(/\r\n?|\n/);};
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// Counts the column offset in a string, taking tabs into account.
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// Used mostly to find indentation.
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var countColumn = exports.countColumn = function(string, end, tabSize, startIndex, startValue) {
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if (end == null) {
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end = string.search(/[^\s\u00a0]/);
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if (end == -1) end = string.length;
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}
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for (var i = startIndex || 0, n = startValue || 0;;) {
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var nextTab = string.indexOf("\t", i);
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if (nextTab < 0 || nextTab >= end)
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return n + (end - i);
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n += nextTab - i;
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n += tabSize - (n % tabSize);
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i = nextTab + 1;
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}
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};
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function StringStream(string, tabSize, context) {
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this.pos = this.start = 0;
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this.string = string;
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this.tabSize = tabSize || 8;
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this.lastColumnPos = this.lastColumnValue = 0;
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this.lineStart = 0;
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this.context = context
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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 == this.lineStart;},
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peek: function() {return this.string.charAt(this.pos) || undefined;},
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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() {
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if (this.lastColumnPos < this.start) {
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this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
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this.lastColumnPos = this.start;
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}
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return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
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},
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indentation: function() {
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return countColumn(this.string, null, this.tabSize) -
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(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
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},
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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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lookAhead: function(n) {
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var line = this.context.line + n
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return line >= this.context.lines.length ? null : this.context.lines[line]
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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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function copyObj(obj, target, overwrite) {
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if (!target) target = {};
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for (var prop in obj)
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if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
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target[prop] = obj[prop];
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return target;
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}
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// This can be used to attach properties to mode objects from
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// outside the actual mode definition.
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var modeExtensions = exports.modeExtensions = {};
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exports.extendMode = function(mode, properties) {
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var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
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copyObj(properties, exts);
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};
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exports.getMode = function(options, spec) {
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var spec = exports.resolveMode(spec);
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var mfactory = modes[spec.name];
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if (!mfactory) return exports.getMode(options, "text/plain");
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var modeObj = mfactory(options, spec);
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if (modeExtensions.hasOwnProperty(spec.name)) {
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var exts = modeExtensions[spec.name];
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for (var prop in exts) {
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if (!exts.hasOwnProperty(prop)) continue;
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if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
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modeObj[prop] = exts[prop];
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}
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}
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modeObj.name = spec.name;
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if (spec.helperType) modeObj.helperType = spec.helperType;
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if (spec.modeProps) for (var prop in spec.modeProps)
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modeObj[prop] = spec.modeProps[prop];
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return modeObj;
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};
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exports.innerMode = function(mode, state) {
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var info;
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while (mode.innerMode) {
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info = mode.innerMode(state);
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if (!info || info.mode == mode) break;
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state = info.state;
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mode = info.mode;
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}
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return info || {mode: mode, state: state};
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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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var context = {lines: lines, line: 0}
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for (var i = 0, e = lines.length; i < e; ++i, ++context.line) {
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if (i) callback("\n");
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var stream = new exports.StringStream(lines[i], 4, context);
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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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require.cache[require.resolve("../../addon/runmode/runmode")] = require.cache[require.resolve("./runmode.node")];
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