| // Generated by CoffeeScript 1.10.0 |
| (function() { |
| var BOM, BOOL, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_ALIAS_MAP, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, HERECOMMENT_ILLEGAL, HEREDOC_DOUBLE, HEREDOC_INDENT, HEREDOC_SINGLE, HEREGEX, HEREGEX_OMIT, IDENTIFIER, INDENTABLE_CLOSERS, INDEXABLE, INVALID_ESCAPE, INVERSES, JSTOKEN, JS_FORBIDDEN, JS_KEYWORDS, LEADING_BLANK_LINE, LINE_BREAK, LINE_CONTINUER, LOGIC, Lexer, MATH, MULTI_DENT, NOT_REGEX, NUMBER, OPERATOR, POSSIBLY_DIVISION, REGEX, REGEX_FLAGS, REGEX_ILLEGAL, RELATION, RESERVED, Rewriter, SHIFT, SIMPLE_STRING_OMIT, STRICT_PROSCRIBED, STRING_DOUBLE, STRING_OMIT, STRING_SINGLE, STRING_START, TRAILING_BLANK_LINE, TRAILING_SPACES, UNARY, UNARY_MATH, VALID_FLAGS, WHITESPACE, compact, count, invertLiterate, key, locationDataToString, ref, ref1, repeat, starts, throwSyntaxError, |
| indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; }; |
| |
| ref = require('./rewriter'), Rewriter = ref.Rewriter, INVERSES = ref.INVERSES; |
| |
| ref1 = require('./helpers'), count = ref1.count, starts = ref1.starts, compact = ref1.compact, repeat = ref1.repeat, invertLiterate = ref1.invertLiterate, locationDataToString = ref1.locationDataToString, throwSyntaxError = ref1.throwSyntaxError; |
| |
| exports.Lexer = Lexer = (function() { |
| function Lexer() {} |
| |
| Lexer.prototype.tokenize = function(code, opts) { |
| var consumed, end, i, ref2; |
| if (opts == null) { |
| opts = {}; |
| } |
| this.literate = opts.literate; |
| this.indent = 0; |
| this.baseIndent = 0; |
| this.indebt = 0; |
| this.outdebt = 0; |
| this.indents = []; |
| this.ends = []; |
| this.tokens = []; |
| this.seenFor = false; |
| this.chunkLine = opts.line || 0; |
| this.chunkColumn = opts.column || 0; |
| code = this.clean(code); |
| i = 0; |
| while (this.chunk = code.slice(i)) { |
| consumed = this.identifierToken() || this.commentToken() || this.whitespaceToken() || this.lineToken() || this.stringToken() || this.numberToken() || this.regexToken() || this.jsToken() || this.literalToken(); |
| ref2 = this.getLineAndColumnFromChunk(consumed), this.chunkLine = ref2[0], this.chunkColumn = ref2[1]; |
| i += consumed; |
| if (opts.untilBalanced && this.ends.length === 0) { |
| return { |
| tokens: this.tokens, |
| index: i |
| }; |
| } |
| } |
| this.closeIndentation(); |
| if (end = this.ends.pop()) { |
| this.error("missing " + end.tag, end.origin[2]); |
| } |
| if (opts.rewrite === false) { |
| return this.tokens; |
| } |
| return (new Rewriter).rewrite(this.tokens); |
| }; |
| |
| Lexer.prototype.clean = function(code) { |
| if (code.charCodeAt(0) === BOM) { |
| code = code.slice(1); |
| } |
| code = code.replace(/\r/g, '').replace(TRAILING_SPACES, ''); |
| if (WHITESPACE.test(code)) { |
| code = "\n" + code; |
| this.chunkLine--; |
| } |
| if (this.literate) { |
| code = invertLiterate(code); |
| } |
| return code; |
| }; |
| |
| Lexer.prototype.identifierToken = function() { |
| var alias, colon, colonOffset, forcedIdentifier, id, idLength, input, match, poppedToken, prev, ref2, ref3, ref4, ref5, tag, tagToken; |
| if (!(match = IDENTIFIER.exec(this.chunk))) { |
| return 0; |
| } |
| input = match[0], id = match[1], colon = match[2]; |
| idLength = id.length; |
| poppedToken = void 0; |
| if (id === 'own' && this.tag() === 'FOR') { |
| this.token('OWN', id); |
| return id.length; |
| } |
| if (id === 'from' && this.tag() === 'YIELD') { |
| this.token('FROM', id); |
| return id.length; |
| } |
| ref2 = this.tokens, prev = ref2[ref2.length - 1]; |
| forcedIdentifier = colon || (prev != null) && (((ref3 = prev[0]) === '.' || ref3 === '?.' || ref3 === '::' || ref3 === '?::') || !prev.spaced && prev[0] === '@'); |
| tag = 'IDENTIFIER'; |
| if (!forcedIdentifier && (indexOf.call(JS_KEYWORDS, id) >= 0 || indexOf.call(COFFEE_KEYWORDS, id) >= 0)) { |
| tag = id.toUpperCase(); |
| if (tag === 'WHEN' && (ref4 = this.tag(), indexOf.call(LINE_BREAK, ref4) >= 0)) { |
| tag = 'LEADING_WHEN'; |
| } else if (tag === 'FOR') { |
| this.seenFor = true; |
| } else if (tag === 'UNLESS') { |
| tag = 'IF'; |
| } else if (indexOf.call(UNARY, tag) >= 0) { |
| tag = 'UNARY'; |
| } else if (indexOf.call(RELATION, tag) >= 0) { |
| if (tag !== 'INSTANCEOF' && this.seenFor) { |
| tag = 'FOR' + tag; |
| this.seenFor = false; |
| } else { |
| tag = 'RELATION'; |
| if (this.value() === '!') { |
| poppedToken = this.tokens.pop(); |
| id = '!' + id; |
| } |
| } |
| } |
| } |
| if (indexOf.call(JS_FORBIDDEN, id) >= 0) { |
| if (forcedIdentifier) { |
| tag = 'IDENTIFIER'; |
| id = new String(id); |
| id.reserved = true; |
| } else if (indexOf.call(RESERVED, id) >= 0) { |
| this.error("reserved word '" + id + "'", { |
| length: id.length |
| }); |
| } |
| } |
| if (!forcedIdentifier) { |
| if (indexOf.call(COFFEE_ALIASES, id) >= 0) { |
| alias = id; |
| id = COFFEE_ALIAS_MAP[id]; |
| } |
| tag = (function() { |
| switch (id) { |
| case '!': |
| return 'UNARY'; |
| case '==': |
| case '!=': |
| return 'COMPARE'; |
| case '&&': |
| case '||': |
| return 'LOGIC'; |
| case 'true': |
| case 'false': |
| return 'BOOL'; |
| case 'break': |
| case 'continue': |
| return 'STATEMENT'; |
| default: |
| return tag; |
| } |
| })(); |
| } |
| tagToken = this.token(tag, id, 0, idLength); |
| if (alias) { |
| tagToken.origin = [tag, alias, tagToken[2]]; |
| } |
| tagToken.variable = !forcedIdentifier; |
| if (poppedToken) { |
| ref5 = [poppedToken[2].first_line, poppedToken[2].first_column], tagToken[2].first_line = ref5[0], tagToken[2].first_column = ref5[1]; |
| } |
| if (colon) { |
| colonOffset = input.lastIndexOf(':'); |
| this.token(':', ':', colonOffset, colon.length); |
| } |
| return input.length; |
| }; |
| |
| Lexer.prototype.numberToken = function() { |
| var binaryLiteral, lexedLength, match, number, octalLiteral; |
| if (!(match = NUMBER.exec(this.chunk))) { |
| return 0; |
| } |
| number = match[0]; |
| lexedLength = number.length; |
| if (/^0[BOX]/.test(number)) { |
| this.error("radix prefix in '" + number + "' must be lowercase", { |
| offset: 1 |
| }); |
| } else if (/E/.test(number) && !/^0x/.test(number)) { |
| this.error("exponential notation in '" + number + "' must be indicated with a lowercase 'e'", { |
| offset: number.indexOf('E') |
| }); |
| } else if (/^0\d*[89]/.test(number)) { |
| this.error("decimal literal '" + number + "' must not be prefixed with '0'", { |
| length: lexedLength |
| }); |
| } else if (/^0\d+/.test(number)) { |
| this.error("octal literal '" + number + "' must be prefixed with '0o'", { |
| length: lexedLength |
| }); |
| } |
| if (octalLiteral = /^0o([0-7]+)/.exec(number)) { |
| number = '0x' + parseInt(octalLiteral[1], 8).toString(16); |
| } |
| if (binaryLiteral = /^0b([01]+)/.exec(number)) { |
| number = '0x' + parseInt(binaryLiteral[1], 2).toString(16); |
| } |
| this.token('NUMBER', number, 0, lexedLength); |
| return lexedLength; |
| }; |
| |
| Lexer.prototype.stringToken = function() { |
| var $, attempt, delimiter, doc, end, heredoc, i, indent, indentRegex, match, quote, ref2, ref3, regex, token, tokens; |
| quote = (STRING_START.exec(this.chunk) || [])[0]; |
| if (!quote) { |
| return 0; |
| } |
| regex = (function() { |
| switch (quote) { |
| case "'": |
| return STRING_SINGLE; |
| case '"': |
| return STRING_DOUBLE; |
| case "'''": |
| return HEREDOC_SINGLE; |
| case '"""': |
| return HEREDOC_DOUBLE; |
| } |
| })(); |
| heredoc = quote.length === 3; |
| ref2 = this.matchWithInterpolations(regex, quote), tokens = ref2.tokens, end = ref2.index; |
| $ = tokens.length - 1; |
| delimiter = quote.charAt(0); |
| if (heredoc) { |
| indent = null; |
| doc = ((function() { |
| var j, len, results; |
| results = []; |
| for (i = j = 0, len = tokens.length; j < len; i = ++j) { |
| token = tokens[i]; |
| if (token[0] === 'NEOSTRING') { |
| results.push(token[1]); |
| } |
| } |
| return results; |
| })()).join('#{}'); |
| while (match = HEREDOC_INDENT.exec(doc)) { |
| attempt = match[1]; |
| if (indent === null || (0 < (ref3 = attempt.length) && ref3 < indent.length)) { |
| indent = attempt; |
| } |
| } |
| if (indent) { |
| indentRegex = RegExp("^" + indent, "gm"); |
| } |
| this.mergeInterpolationTokens(tokens, { |
| delimiter: delimiter |
| }, (function(_this) { |
| return function(value, i) { |
| value = _this.formatString(value); |
| if (i === 0) { |
| value = value.replace(LEADING_BLANK_LINE, ''); |
| } |
| if (i === $) { |
| value = value.replace(TRAILING_BLANK_LINE, ''); |
| } |
| if (indentRegex) { |
| value = value.replace(indentRegex, ''); |
| } |
| return value; |
| }; |
| })(this)); |
| } else { |
| this.mergeInterpolationTokens(tokens, { |
| delimiter: delimiter |
| }, (function(_this) { |
| return function(value, i) { |
| value = _this.formatString(value); |
| value = value.replace(SIMPLE_STRING_OMIT, function(match, offset) { |
| if ((i === 0 && offset === 0) || (i === $ && offset + match.length === value.length)) { |
| return ''; |
| } else { |
| return ' '; |
| } |
| }); |
| return value; |
| }; |
| })(this)); |
| } |
| return end; |
| }; |
| |
| Lexer.prototype.commentToken = function() { |
| var comment, here, match; |
| if (!(match = this.chunk.match(COMMENT))) { |
| return 0; |
| } |
| comment = match[0], here = match[1]; |
| if (here) { |
| if (match = HERECOMMENT_ILLEGAL.exec(comment)) { |
| this.error("block comments cannot contain " + match[0], { |
| offset: match.index, |
| length: match[0].length |
| }); |
| } |
| if (here.indexOf('\n') >= 0) { |
| here = here.replace(RegExp("\\n" + (repeat(' ', this.indent)), "g"), '\n'); |
| } |
| this.token('HERECOMMENT', here, 0, comment.length); |
| } |
| return comment.length; |
| }; |
| |
| Lexer.prototype.jsToken = function() { |
| var match, script; |
| if (!(this.chunk.charAt(0) === '`' && (match = JSTOKEN.exec(this.chunk)))) { |
| return 0; |
| } |
| this.token('JS', (script = match[0]).slice(1, -1), 0, script.length); |
| return script.length; |
| }; |
| |
| Lexer.prototype.regexToken = function() { |
| var body, closed, end, flags, index, match, origin, prev, ref2, ref3, ref4, regex, tokens; |
| switch (false) { |
| case !(match = REGEX_ILLEGAL.exec(this.chunk)): |
| this.error("regular expressions cannot begin with " + match[2], { |
| offset: match.index + match[1].length |
| }); |
| break; |
| case !(match = this.matchWithInterpolations(HEREGEX, '///')): |
| tokens = match.tokens, index = match.index; |
| break; |
| case !(match = REGEX.exec(this.chunk)): |
| regex = match[0], body = match[1], closed = match[2]; |
| this.validateEscapes(body, { |
| isRegex: true, |
| offsetInChunk: 1 |
| }); |
| index = regex.length; |
| ref2 = this.tokens, prev = ref2[ref2.length - 1]; |
| if (prev) { |
| if (prev.spaced && (ref3 = prev[0], indexOf.call(CALLABLE, ref3) >= 0)) { |
| if (!closed || POSSIBLY_DIVISION.test(regex)) { |
| return 0; |
| } |
| } else if (ref4 = prev[0], indexOf.call(NOT_REGEX, ref4) >= 0) { |
| return 0; |
| } |
| } |
| if (!closed) { |
| this.error('missing / (unclosed regex)'); |
| } |
| break; |
| default: |
| return 0; |
| } |
| flags = REGEX_FLAGS.exec(this.chunk.slice(index))[0]; |
| end = index + flags.length; |
| origin = this.makeToken('REGEX', null, 0, end); |
| switch (false) { |
| case !!VALID_FLAGS.test(flags): |
| this.error("invalid regular expression flags " + flags, { |
| offset: index, |
| length: flags.length |
| }); |
| break; |
| case !(regex || tokens.length === 1): |
| if (body == null) { |
| body = this.formatHeregex(tokens[0][1]); |
| } |
| this.token('REGEX', "" + (this.makeDelimitedLiteral(body, { |
| delimiter: '/' |
| })) + flags, 0, end, origin); |
| break; |
| default: |
| this.token('REGEX_START', '(', 0, 0, origin); |
| this.token('IDENTIFIER', 'RegExp', 0, 0); |
| this.token('CALL_START', '(', 0, 0); |
| this.mergeInterpolationTokens(tokens, { |
| delimiter: '"', |
| double: true |
| }, this.formatHeregex); |
| if (flags) { |
| this.token(',', ',', index, 0); |
| this.token('STRING', '"' + flags + '"', index, flags.length); |
| } |
| this.token(')', ')', end, 0); |
| this.token('REGEX_END', ')', end, 0); |
| } |
| return end; |
| }; |
| |
| Lexer.prototype.lineToken = function() { |
| var diff, indent, match, noNewlines, size; |
| if (!(match = MULTI_DENT.exec(this.chunk))) { |
| return 0; |
| } |
| indent = match[0]; |
| this.seenFor = false; |
| size = indent.length - 1 - indent.lastIndexOf('\n'); |
| noNewlines = this.unfinished(); |
| if (size - this.indebt === this.indent) { |
| if (noNewlines) { |
| this.suppressNewlines(); |
| } else { |
| this.newlineToken(0); |
| } |
| return indent.length; |
| } |
| if (size > this.indent) { |
| if (noNewlines) { |
| this.indebt = size - this.indent; |
| this.suppressNewlines(); |
| return indent.length; |
| } |
| if (!this.tokens.length) { |
| this.baseIndent = this.indent = size; |
| return indent.length; |
| } |
| diff = size - this.indent + this.outdebt; |
| this.token('INDENT', diff, indent.length - size, size); |
| this.indents.push(diff); |
| this.ends.push({ |
| tag: 'OUTDENT' |
| }); |
| this.outdebt = this.indebt = 0; |
| this.indent = size; |
| } else if (size < this.baseIndent) { |
| this.error('missing indentation', { |
| offset: indent.length |
| }); |
| } else { |
| this.indebt = 0; |
| this.outdentToken(this.indent - size, noNewlines, indent.length); |
| } |
| return indent.length; |
| }; |
| |
| Lexer.prototype.outdentToken = function(moveOut, noNewlines, outdentLength) { |
| var decreasedIndent, dent, lastIndent, ref2; |
| decreasedIndent = this.indent - moveOut; |
| while (moveOut > 0) { |
| lastIndent = this.indents[this.indents.length - 1]; |
| if (!lastIndent) { |
| moveOut = 0; |
| } else if (lastIndent === this.outdebt) { |
| moveOut -= this.outdebt; |
| this.outdebt = 0; |
| } else if (lastIndent < this.outdebt) { |
| this.outdebt -= lastIndent; |
| moveOut -= lastIndent; |
| } else { |
| dent = this.indents.pop() + this.outdebt; |
| if (outdentLength && (ref2 = this.chunk[outdentLength], indexOf.call(INDENTABLE_CLOSERS, ref2) >= 0)) { |
| decreasedIndent -= dent - moveOut; |
| moveOut = dent; |
| } |
| this.outdebt = 0; |
| this.pair('OUTDENT'); |
| this.token('OUTDENT', moveOut, 0, outdentLength); |
| moveOut -= dent; |
| } |
| } |
| if (dent) { |
| this.outdebt -= moveOut; |
| } |
| while (this.value() === ';') { |
| this.tokens.pop(); |
| } |
| if (!(this.tag() === 'TERMINATOR' || noNewlines)) { |
| this.token('TERMINATOR', '\n', outdentLength, 0); |
| } |
| this.indent = decreasedIndent; |
| return this; |
| }; |
| |
| Lexer.prototype.whitespaceToken = function() { |
| var match, nline, prev, ref2; |
| if (!((match = WHITESPACE.exec(this.chunk)) || (nline = this.chunk.charAt(0) === '\n'))) { |
| return 0; |
| } |
| ref2 = this.tokens, prev = ref2[ref2.length - 1]; |
| if (prev) { |
| prev[match ? 'spaced' : 'newLine'] = true; |
| } |
| if (match) { |
| return match[0].length; |
| } else { |
| return 0; |
| } |
| }; |
| |
| Lexer.prototype.newlineToken = function(offset) { |
| while (this.value() === ';') { |
| this.tokens.pop(); |
| } |
| if (this.tag() !== 'TERMINATOR') { |
| this.token('TERMINATOR', '\n', offset, 0); |
| } |
| return this; |
| }; |
| |
| Lexer.prototype.suppressNewlines = function() { |
| if (this.value() === '\\') { |
| this.tokens.pop(); |
| } |
| return this; |
| }; |
| |
| Lexer.prototype.literalToken = function() { |
| var match, prev, ref2, ref3, ref4, ref5, ref6, tag, token, value; |
| if (match = OPERATOR.exec(this.chunk)) { |
| value = match[0]; |
| if (CODE.test(value)) { |
| this.tagParameters(); |
| } |
| } else { |
| value = this.chunk.charAt(0); |
| } |
| tag = value; |
| ref2 = this.tokens, prev = ref2[ref2.length - 1]; |
| if (value === '=' && prev) { |
| if (!prev[1].reserved && (ref3 = prev[1], indexOf.call(JS_FORBIDDEN, ref3) >= 0)) { |
| if (prev.origin) { |
| prev = prev.origin; |
| } |
| this.error("reserved word '" + prev[1] + "' can't be assigned", prev[2]); |
| } |
| if ((ref4 = prev[1]) === '||' || ref4 === '&&') { |
| prev[0] = 'COMPOUND_ASSIGN'; |
| prev[1] += '='; |
| return value.length; |
| } |
| } |
| if (value === ';') { |
| this.seenFor = false; |
| tag = 'TERMINATOR'; |
| } else if (indexOf.call(MATH, value) >= 0) { |
| tag = 'MATH'; |
| } else if (indexOf.call(COMPARE, value) >= 0) { |
| tag = 'COMPARE'; |
| } else if (indexOf.call(COMPOUND_ASSIGN, value) >= 0) { |
| tag = 'COMPOUND_ASSIGN'; |
| } else if (indexOf.call(UNARY, value) >= 0) { |
| tag = 'UNARY'; |
| } else if (indexOf.call(UNARY_MATH, value) >= 0) { |
| tag = 'UNARY_MATH'; |
| } else if (indexOf.call(SHIFT, value) >= 0) { |
| tag = 'SHIFT'; |
| } else if (indexOf.call(LOGIC, value) >= 0 || value === '?' && (prev != null ? prev.spaced : void 0)) { |
| tag = 'LOGIC'; |
| } else if (prev && !prev.spaced) { |
| if (value === '(' && (ref5 = prev[0], indexOf.call(CALLABLE, ref5) >= 0)) { |
| if (prev[0] === '?') { |
| prev[0] = 'FUNC_EXIST'; |
| } |
| tag = 'CALL_START'; |
| } else if (value === '[' && (ref6 = prev[0], indexOf.call(INDEXABLE, ref6) >= 0)) { |
| tag = 'INDEX_START'; |
| switch (prev[0]) { |
| case '?': |
| prev[0] = 'INDEX_SOAK'; |
| } |
| } |
| } |
| token = this.makeToken(tag, value); |
| switch (value) { |
| case '(': |
| case '{': |
| case '[': |
| this.ends.push({ |
| tag: INVERSES[value], |
| origin: token |
| }); |
| break; |
| case ')': |
| case '}': |
| case ']': |
| this.pair(value); |
| } |
| this.tokens.push(token); |
| return value.length; |
| }; |
| |
| Lexer.prototype.tagParameters = function() { |
| var i, stack, tok, tokens; |
| if (this.tag() !== ')') { |
| return this; |
| } |
| stack = []; |
| tokens = this.tokens; |
| i = tokens.length; |
| tokens[--i][0] = 'PARAM_END'; |
| while (tok = tokens[--i]) { |
| switch (tok[0]) { |
| case ')': |
| stack.push(tok); |
| break; |
| case '(': |
| case 'CALL_START': |
| if (stack.length) { |
| stack.pop(); |
| } else if (tok[0] === '(') { |
| tok[0] = 'PARAM_START'; |
| return this; |
| } else { |
| return this; |
| } |
| } |
| } |
| return this; |
| }; |
| |
| Lexer.prototype.closeIndentation = function() { |
| return this.outdentToken(this.indent); |
| }; |
| |
| Lexer.prototype.matchWithInterpolations = function(regex, delimiter) { |
| var close, column, firstToken, index, lastToken, line, nested, offsetInChunk, open, ref2, ref3, ref4, str, strPart, tokens; |
| tokens = []; |
| offsetInChunk = delimiter.length; |
| if (this.chunk.slice(0, offsetInChunk) !== delimiter) { |
| return null; |
| } |
| str = this.chunk.slice(offsetInChunk); |
| while (true) { |
| strPart = regex.exec(str)[0]; |
| this.validateEscapes(strPart, { |
| isRegex: delimiter.charAt(0) === '/', |
| offsetInChunk: offsetInChunk |
| }); |
| tokens.push(this.makeToken('NEOSTRING', strPart, offsetInChunk)); |
| str = str.slice(strPart.length); |
| offsetInChunk += strPart.length; |
| if (str.slice(0, 2) !== '#{') { |
| break; |
| } |
| ref2 = this.getLineAndColumnFromChunk(offsetInChunk + 1), line = ref2[0], column = ref2[1]; |
| ref3 = new Lexer().tokenize(str.slice(1), { |
| line: line, |
| column: column, |
| untilBalanced: true |
| }), nested = ref3.tokens, index = ref3.index; |
| index += 1; |
| open = nested[0], close = nested[nested.length - 1]; |
| open[0] = open[1] = '('; |
| close[0] = close[1] = ')'; |
| close.origin = ['', 'end of interpolation', close[2]]; |
| if (((ref4 = nested[1]) != null ? ref4[0] : void 0) === 'TERMINATOR') { |
| nested.splice(1, 1); |
| } |
| tokens.push(['TOKENS', nested]); |
| str = str.slice(index); |
| offsetInChunk += index; |
| } |
| if (str.slice(0, delimiter.length) !== delimiter) { |
| this.error("missing " + delimiter, { |
| length: delimiter.length |
| }); |
| } |
| firstToken = tokens[0], lastToken = tokens[tokens.length - 1]; |
| firstToken[2].first_column -= delimiter.length; |
| lastToken[2].last_column += delimiter.length; |
| if (lastToken[1].length === 0) { |
| lastToken[2].last_column -= 1; |
| } |
| return { |
| tokens: tokens, |
| index: offsetInChunk + delimiter.length |
| }; |
| }; |
| |
| Lexer.prototype.mergeInterpolationTokens = function(tokens, options, fn) { |
| var converted, firstEmptyStringIndex, firstIndex, i, j, lastToken, len, locationToken, lparen, plusToken, ref2, rparen, tag, token, tokensToPush, value; |
| if (tokens.length > 1) { |
| lparen = this.token('STRING_START', '(', 0, 0); |
| } |
| firstIndex = this.tokens.length; |
| for (i = j = 0, len = tokens.length; j < len; i = ++j) { |
| token = tokens[i]; |
| tag = token[0], value = token[1]; |
| switch (tag) { |
| case 'TOKENS': |
| if (value.length === 2) { |
| continue; |
| } |
| locationToken = value[0]; |
| tokensToPush = value; |
| break; |
| case 'NEOSTRING': |
| converted = fn(token[1], i); |
| if (converted.length === 0) { |
| if (i === 0) { |
| firstEmptyStringIndex = this.tokens.length; |
| } else { |
| continue; |
| } |
| } |
| if (i === 2 && (firstEmptyStringIndex != null)) { |
| this.tokens.splice(firstEmptyStringIndex, 2); |
| } |
| token[0] = 'STRING'; |
| token[1] = this.makeDelimitedLiteral(converted, options); |
| locationToken = token; |
| tokensToPush = [token]; |
| } |
| if (this.tokens.length > firstIndex) { |
| plusToken = this.token('+', '+'); |
| plusToken[2] = { |
| first_line: locationToken[2].first_line, |
| first_column: locationToken[2].first_column, |
| last_line: locationToken[2].first_line, |
| last_column: locationToken[2].first_column |
| }; |
| } |
| (ref2 = this.tokens).push.apply(ref2, tokensToPush); |
| } |
| if (lparen) { |
| lastToken = tokens[tokens.length - 1]; |
| lparen.origin = [ |
| 'STRING', null, { |
| first_line: lparen[2].first_line, |
| first_column: lparen[2].first_column, |
| last_line: lastToken[2].last_line, |
| last_column: lastToken[2].last_column |
| } |
| ]; |
| rparen = this.token('STRING_END', ')'); |
| return rparen[2] = { |
| first_line: lastToken[2].last_line, |
| first_column: lastToken[2].last_column, |
| last_line: lastToken[2].last_line, |
| last_column: lastToken[2].last_column |
| }; |
| } |
| }; |
| |
| Lexer.prototype.pair = function(tag) { |
| var lastIndent, prev, ref2, ref3, wanted; |
| ref2 = this.ends, prev = ref2[ref2.length - 1]; |
| if (tag !== (wanted = prev != null ? prev.tag : void 0)) { |
| if ('OUTDENT' !== wanted) { |
| this.error("unmatched " + tag); |
| } |
| ref3 = this.indents, lastIndent = ref3[ref3.length - 1]; |
| this.outdentToken(lastIndent, true); |
| return this.pair(tag); |
| } |
| return this.ends.pop(); |
| }; |
| |
| Lexer.prototype.getLineAndColumnFromChunk = function(offset) { |
| var column, lastLine, lineCount, ref2, string; |
| if (offset === 0) { |
| return [this.chunkLine, this.chunkColumn]; |
| } |
| if (offset >= this.chunk.length) { |
| string = this.chunk; |
| } else { |
| string = this.chunk.slice(0, +(offset - 1) + 1 || 9e9); |
| } |
| lineCount = count(string, '\n'); |
| column = this.chunkColumn; |
| if (lineCount > 0) { |
| ref2 = string.split('\n'), lastLine = ref2[ref2.length - 1]; |
| column = lastLine.length; |
| } else { |
| column += string.length; |
| } |
| return [this.chunkLine + lineCount, column]; |
| }; |
| |
| Lexer.prototype.makeToken = function(tag, value, offsetInChunk, length) { |
| var lastCharacter, locationData, ref2, ref3, token; |
| if (offsetInChunk == null) { |
| offsetInChunk = 0; |
| } |
| if (length == null) { |
| length = value.length; |
| } |
| locationData = {}; |
| ref2 = this.getLineAndColumnFromChunk(offsetInChunk), locationData.first_line = ref2[0], locationData.first_column = ref2[1]; |
| lastCharacter = Math.max(0, length - 1); |
| ref3 = this.getLineAndColumnFromChunk(offsetInChunk + lastCharacter), locationData.last_line = ref3[0], locationData.last_column = ref3[1]; |
| token = [tag, value, locationData]; |
| return token; |
| }; |
| |
| Lexer.prototype.token = function(tag, value, offsetInChunk, length, origin) { |
| var token; |
| token = this.makeToken(tag, value, offsetInChunk, length); |
| if (origin) { |
| token.origin = origin; |
| } |
| this.tokens.push(token); |
| return token; |
| }; |
| |
| Lexer.prototype.tag = function() { |
| var ref2, token; |
| ref2 = this.tokens, token = ref2[ref2.length - 1]; |
| return token != null ? token[0] : void 0; |
| }; |
| |
| Lexer.prototype.value = function() { |
| var ref2, token; |
| ref2 = this.tokens, token = ref2[ref2.length - 1]; |
| return token != null ? token[1] : void 0; |
| }; |
| |
| Lexer.prototype.unfinished = function() { |
| var ref2; |
| return LINE_CONTINUER.test(this.chunk) || ((ref2 = this.tag()) === '\\' || ref2 === '.' || ref2 === '?.' || ref2 === '?::' || ref2 === 'UNARY' || ref2 === 'MATH' || ref2 === 'UNARY_MATH' || ref2 === '+' || ref2 === '-' || ref2 === 'YIELD' || ref2 === '**' || ref2 === 'SHIFT' || ref2 === 'RELATION' || ref2 === 'COMPARE' || ref2 === 'LOGIC' || ref2 === 'THROW' || ref2 === 'EXTENDS'); |
| }; |
| |
| Lexer.prototype.formatString = function(str) { |
| return str.replace(STRING_OMIT, '$1'); |
| }; |
| |
| Lexer.prototype.formatHeregex = function(str) { |
| return str.replace(HEREGEX_OMIT, '$1$2'); |
| }; |
| |
| Lexer.prototype.validateEscapes = function(str, options) { |
| var before, hex, invalidEscape, match, message, octal, ref2, unicode; |
| if (options == null) { |
| options = {}; |
| } |
| match = INVALID_ESCAPE.exec(str); |
| if (!match) { |
| return; |
| } |
| match[0], before = match[1], octal = match[2], hex = match[3], unicode = match[4]; |
| if (options.isRegex && octal && octal.charAt(0) !== '0') { |
| return; |
| } |
| message = octal ? "octal escape sequences are not allowed" : "invalid escape sequence"; |
| invalidEscape = "\\" + (octal || hex || unicode); |
| return this.error(message + " " + invalidEscape, { |
| offset: ((ref2 = options.offsetInChunk) != null ? ref2 : 0) + match.index + before.length, |
| length: invalidEscape.length |
| }); |
| }; |
| |
| Lexer.prototype.makeDelimitedLiteral = function(body, options) { |
| var regex; |
| if (options == null) { |
| options = {}; |
| } |
| if (body === '' && options.delimiter === '/') { |
| body = '(?:)'; |
| } |
| regex = RegExp("(\\\\\\\\)|(\\\\0(?=[1-7]))|\\\\?(" + options.delimiter + ")|\\\\?(?:(\\n)|(\\r)|(\\u2028)|(\\u2029))|(\\\\.)", "g"); |
| body = body.replace(regex, function(match, backslash, nul, delimiter, lf, cr, ls, ps, other) { |
| switch (false) { |
| case !backslash: |
| if (options.double) { |
| return backslash + backslash; |
| } else { |
| return backslash; |
| } |
| case !nul: |
| return '\\x00'; |
| case !delimiter: |
| return "\\" + delimiter; |
| case !lf: |
| return '\\n'; |
| case !cr: |
| return '\\r'; |
| case !ls: |
| return '\\u2028'; |
| case !ps: |
| return '\\u2029'; |
| case !other: |
| if (options.double) { |
| return "\\" + other; |
| } else { |
| return other; |
| } |
| } |
| }); |
| return "" + options.delimiter + body + options.delimiter; |
| }; |
| |
| Lexer.prototype.error = function(message, options) { |
| var first_column, first_line, location, ref2, ref3, ref4; |
| if (options == null) { |
| options = {}; |
| } |
| location = 'first_line' in options ? options : ((ref3 = this.getLineAndColumnFromChunk((ref2 = options.offset) != null ? ref2 : 0), first_line = ref3[0], first_column = ref3[1], ref3), { |
| first_line: first_line, |
| first_column: first_column, |
| last_column: first_column + ((ref4 = options.length) != null ? ref4 : 1) - 1 |
| }); |
| return throwSyntaxError(message, location); |
| }; |
| |
| return Lexer; |
| |
| })(); |
| |
| JS_KEYWORDS = ['true', 'false', 'null', 'this', 'new', 'delete', 'typeof', 'in', 'instanceof', 'return', 'throw', 'break', 'continue', 'debugger', 'yield', 'if', 'else', 'switch', 'for', 'while', 'do', 'try', 'catch', 'finally', 'class', 'extends', 'super']; |
| |
| COFFEE_KEYWORDS = ['undefined', 'then', 'unless', 'until', 'loop', 'of', 'by', 'when']; |
| |
| COFFEE_ALIAS_MAP = { |
| and: '&&', |
| or: '||', |
| is: '==', |
| isnt: '!=', |
| not: '!', |
| yes: 'true', |
| no: 'false', |
| on: 'true', |
| off: 'false' |
| }; |
| |
| COFFEE_ALIASES = (function() { |
| var results; |
| results = []; |
| for (key in COFFEE_ALIAS_MAP) { |
| results.push(key); |
| } |
| return results; |
| })(); |
| |
| COFFEE_KEYWORDS = COFFEE_KEYWORDS.concat(COFFEE_ALIASES); |
| |
| RESERVED = ['case', 'default', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'export', 'import', 'native', 'implements', 'interface', 'package', 'private', 'protected', 'public', 'static']; |
| |
| STRICT_PROSCRIBED = ['arguments', 'eval', 'yield*']; |
| |
| JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED).concat(STRICT_PROSCRIBED); |
| |
| exports.RESERVED = RESERVED.concat(JS_KEYWORDS).concat(COFFEE_KEYWORDS).concat(STRICT_PROSCRIBED); |
| |
| exports.STRICT_PROSCRIBED = STRICT_PROSCRIBED; |
| |
| BOM = 65279; |
| |
| IDENTIFIER = /^(?!\d)((?:(?!\s)[$\w\x7f-\uffff])+)([^\n\S]*:(?!:))?/; |
| |
| NUMBER = /^0b[01]+|^0o[0-7]+|^0x[\da-f]+|^\d*\.?\d+(?:e[+-]?\d+)?/i; |
| |
| OPERATOR = /^(?:[-=]>|[-+*\/%<>&|^!?=]=|>>>=?|([-+:])\1|([&|<>*\/%])\2=?|\?(\.|::)|\.{2,3})/; |
| |
| WHITESPACE = /^[^\n\S]+/; |
| |
| COMMENT = /^###([^#][\s\S]*?)(?:###[^\n\S]*|###$)|^(?:\s*#(?!##[^#]).*)+/; |
| |
| CODE = /^[-=]>/; |
| |
| MULTI_DENT = /^(?:\n[^\n\S]*)+/; |
| |
| JSTOKEN = /^`[^\\`]*(?:\\.[^\\`]*)*`/; |
| |
| STRING_START = /^(?:'''|"""|'|")/; |
| |
| STRING_SINGLE = /^(?:[^\\']|\\[\s\S])*/; |
| |
| STRING_DOUBLE = /^(?:[^\\"#]|\\[\s\S]|\#(?!\{))*/; |
| |
| HEREDOC_SINGLE = /^(?:[^\\']|\\[\s\S]|'(?!''))*/; |
| |
| HEREDOC_DOUBLE = /^(?:[^\\"#]|\\[\s\S]|"(?!"")|\#(?!\{))*/; |
| |
| STRING_OMIT = /((?:\\\\)+)|\\[^\S\n]*\n\s*/g; |
| |
| SIMPLE_STRING_OMIT = /\s*\n\s*/g; |
| |
| HEREDOC_INDENT = /\n+([^\n\S]*)(?=\S)/g; |
| |
| REGEX = /^\/(?!\/)((?:[^[\/\n\\]|\\[^\n]|\[(?:\\[^\n]|[^\]\n\\])*\])*)(\/)?/; |
| |
| REGEX_FLAGS = /^\w*/; |
| |
| VALID_FLAGS = /^(?!.*(.).*\1)[imgy]*$/; |
| |
| HEREGEX = /^(?:[^\\\/#]|\\[\s\S]|\/(?!\/\/)|\#(?!\{))*/; |
| |
| HEREGEX_OMIT = /((?:\\\\)+)|\\(\s)|\s+(?:#.*)?/g; |
| |
| REGEX_ILLEGAL = /^(\/|\/{3}\s*)(\*)/; |
| |
| POSSIBLY_DIVISION = /^\/=?\s/; |
| |
| HERECOMMENT_ILLEGAL = /\*\//; |
| |
| LINE_CONTINUER = /^\s*(?:,|\??\.(?![.\d])|::)/; |
| |
| INVALID_ESCAPE = /((?:^|[^\\])(?:\\\\)*)\\(?:(0[0-7]|[1-7])|(x(?![\da-fA-F]{2}).{0,2})|(u(?![\da-fA-F]{4}).{0,4}))/; |
| |
| LEADING_BLANK_LINE = /^[^\n\S]*\n/; |
| |
| TRAILING_BLANK_LINE = /\n[^\n\S]*$/; |
| |
| TRAILING_SPACES = /\s+$/; |
| |
| COMPOUND_ASSIGN = ['-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?=', '<<=', '>>=', '>>>=', '&=', '^=', '|=', '**=', '//=', '%%=']; |
| |
| UNARY = ['NEW', 'TYPEOF', 'DELETE', 'DO']; |
| |
| UNARY_MATH = ['!', '~']; |
| |
| LOGIC = ['&&', '||', '&', '|', '^']; |
| |
| SHIFT = ['<<', '>>', '>>>']; |
| |
| COMPARE = ['==', '!=', '<', '>', '<=', '>=']; |
| |
| MATH = ['*', '/', '%', '//', '%%']; |
| |
| RELATION = ['IN', 'OF', 'INSTANCEOF']; |
| |
| BOOL = ['TRUE', 'FALSE']; |
| |
| CALLABLE = ['IDENTIFIER', ')', ']', '?', '@', 'THIS', 'SUPER']; |
| |
| INDEXABLE = CALLABLE.concat(['NUMBER', 'STRING', 'STRING_END', 'REGEX', 'REGEX_END', 'BOOL', 'NULL', 'UNDEFINED', '}', '::']); |
| |
| NOT_REGEX = INDEXABLE.concat(['++', '--']); |
| |
| LINE_BREAK = ['INDENT', 'OUTDENT', 'TERMINATOR']; |
| |
| INDENTABLE_CLOSERS = [')', '}', ']']; |
| |
| }).call(this); |
