| // Generated by CoffeeScript 1.8.0 |
| (function() { |
| var BOM, BOOL, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_ALIAS_MAP, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, HEREDOC, HEREDOC_ILLEGAL, HEREDOC_INDENT, HEREGEX, HEREGEX_OMIT, IDENTIFIER, INDENTABLE_CLOSERS, INDEXABLE, INVERSES, JSTOKEN, JS_FORBIDDEN, JS_KEYWORDS, LINE_BREAK, LINE_CONTINUER, LOGIC, Lexer, MATH, MULTILINER, MULTI_DENT, NOT_REGEX, NOT_SPACED_REGEX, NUMBER, OPERATOR, REGEX, RELATION, RESERVED, Rewriter, SHIFT, SIMPLESTR, STRICT_PROSCRIBED, TRAILING_SPACES, UNARY, UNARY_MATH, WHITESPACE, compact, count, invertLiterate, key, last, locationDataToString, repeat, starts, throwSyntaxError, _ref, _ref1, |
| __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, last = _ref1.last, 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, i, tag, _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.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.heredocToken() || this.stringToken() || this.numberToken() || this.regexToken() || this.jsToken() || this.literalToken(); |
| _ref2 = this.getLineAndColumnFromChunk(consumed), this.chunkLine = _ref2[0], this.chunkColumn = _ref2[1]; |
| i += consumed; |
| } |
| this.closeIndentation(); |
| if (tag = this.ends.pop()) { |
| this.error("missing " + tag); |
| } |
| 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 colon, colonOffset, forcedIdentifier, id, idLength, input, match, poppedToken, prev, tag, tagToken, _ref2, _ref3, _ref4; |
| 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; |
| } |
| forcedIdentifier = colon || (prev = last(this.tokens)) && (((_ref2 = prev[0]) === '.' || _ref2 === '?.' || _ref2 === '::' || _ref2 === '?::') || !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' && (_ref3 = this.tag(), __indexOf.call(LINE_BREAK, _ref3) >= 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 + "\""); |
| } |
| } |
| if (!forcedIdentifier) { |
| if (__indexOf.call(COFFEE_ALIASES, id) >= 0) { |
| 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 (poppedToken) { |
| _ref4 = [poppedToken[2].first_line, poppedToken[2].first_column], tagToken[2].first_line = _ref4[0], tagToken[2].first_column = _ref4[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]; |
| if (/^0[BOX]/.test(number)) { |
| this.error("radix prefix '" + number + "' must be lowercase"); |
| } else if (/E/.test(number) && !/^0x/.test(number)) { |
| this.error("exponential notation '" + number + "' must be indicated with a lowercase 'e'"); |
| } else if (/^0\d*[89]/.test(number)) { |
| this.error("decimal literal '" + number + "' must not be prefixed with '0'"); |
| } else if (/^0\d+/.test(number)) { |
| this.error("octal literal '" + number + "' must be prefixed with '0o'"); |
| } |
| lexedLength = number.length; |
| 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 inner, innerLen, numBreak, octalEsc, pos, quote, string, trimmed; |
| switch (quote = this.chunk.charAt(0)) { |
| case "'": |
| string = (SIMPLESTR.exec(this.chunk) || [])[0]; |
| break; |
| case '"': |
| string = this.balancedString(this.chunk, '"'); |
| } |
| if (!string) { |
| return 0; |
| } |
| inner = string.slice(1, -1); |
| trimmed = this.removeNewlines(inner); |
| if (quote === '"' && 0 < string.indexOf('#{', 1)) { |
| numBreak = pos = 0; |
| innerLen = inner.length; |
| while (inner.charAt(pos++) === '\n' && pos < innerLen) { |
| numBreak++; |
| } |
| this.interpolateString(trimmed, { |
| strOffset: 1 + numBreak, |
| lexedLength: string.length |
| }); |
| } else { |
| this.token('STRING', quote + this.escapeLines(trimmed) + quote, 0, string.length); |
| } |
| if (octalEsc = /^(?:\\.|[^\\])*\\(?:0[0-7]|[1-7])/.test(string)) { |
| this.error("octal escape sequences " + string + " are not allowed"); |
| } |
| return string.length; |
| }; |
| |
| Lexer.prototype.heredocToken = function() { |
| var doc, heredoc, match, quote, strOffset; |
| if (!(match = HEREDOC.exec(this.chunk))) { |
| return 0; |
| } |
| heredoc = match[0]; |
| quote = heredoc.charAt(0); |
| doc = this.sanitizeHeredoc(match[2], { |
| quote: quote, |
| indent: null |
| }); |
| if (quote === '"' && 0 <= doc.indexOf('#{')) { |
| strOffset = match[2].charAt(0) === '\n' ? 4 : 3; |
| this.interpolateString(doc, { |
| heredoc: true, |
| strOffset: strOffset, |
| lexedLength: heredoc.length |
| }); |
| } else { |
| this.token('STRING', this.makeString(doc, quote, true), 0, heredoc.length); |
| } |
| return heredoc.length; |
| }; |
| |
| Lexer.prototype.commentToken = function() { |
| var comment, here, match; |
| if (!(match = this.chunk.match(COMMENT))) { |
| return 0; |
| } |
| comment = match[0], here = match[1]; |
| if (here) { |
| this.token('HERECOMMENT', this.sanitizeHeredoc(here, { |
| herecomment: true, |
| indent: repeat(' ', this.indent) |
| }), 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 flags, length, match, prev, regex, _ref2, _ref3; |
| if (this.chunk.charAt(0) !== '/') { |
| return 0; |
| } |
| if (length = this.heregexToken()) { |
| return length; |
| } |
| prev = last(this.tokens); |
| if (prev && (_ref2 = prev[0], __indexOf.call((prev.spaced ? NOT_REGEX : NOT_SPACED_REGEX), _ref2) >= 0)) { |
| return 0; |
| } |
| if (!(match = REGEX.exec(this.chunk))) { |
| return 0; |
| } |
| _ref3 = match, match = _ref3[0], regex = _ref3[1], flags = _ref3[2]; |
| if (regex === '//') { |
| return 0; |
| } |
| if (regex.slice(0, 2) === '/*') { |
| this.error('regular expressions cannot begin with `*`'); |
| } |
| this.token('REGEX', "" + regex + flags, 0, match.length); |
| return match.length; |
| }; |
| |
| Lexer.prototype.heregexToken = function() { |
| var body, flags, flagsOffset, heregex, match, plusToken, prev, re, tag, token, tokens, value, _i, _len, _ref2, _ref3, _ref4; |
| if (!(match = HEREGEX.exec(this.chunk))) { |
| return 0; |
| } |
| heregex = match[0], body = match[1], flags = match[2]; |
| if (0 > body.indexOf('#{')) { |
| re = this.escapeLines(body.replace(HEREGEX_OMIT, '$1$2').replace(/\//g, '\\/'), true); |
| if (re.match(/^\*/)) { |
| this.error('regular expressions cannot begin with `*`'); |
| } |
| this.token('REGEX', "/" + (re || '(?:)') + "/" + flags, 0, heregex.length); |
| return heregex.length; |
| } |
| this.token('IDENTIFIER', 'RegExp', 0, 0); |
| this.token('CALL_START', '(', 0, 0); |
| tokens = []; |
| _ref2 = this.interpolateString(body, { |
| regex: true, |
| strOffset: 3 |
| }); |
| for (_i = 0, _len = _ref2.length; _i < _len; _i++) { |
| token = _ref2[_i]; |
| tag = token[0], value = token[1]; |
| if (tag === 'TOKENS') { |
| tokens.push.apply(tokens, value); |
| } else if (tag === 'NEOSTRING') { |
| if (!(value = value.replace(HEREGEX_OMIT, '$1$2'))) { |
| continue; |
| } |
| value = value.replace(/\\/g, '\\\\'); |
| token[0] = 'STRING'; |
| token[1] = this.makeString(value, '"', true); |
| tokens.push(token); |
| } else { |
| this.error("Unexpected " + tag); |
| } |
| prev = last(this.tokens); |
| plusToken = ['+', '+']; |
| plusToken[2] = prev[2]; |
| tokens.push(plusToken); |
| } |
| tokens.pop(); |
| if (((_ref3 = tokens[0]) != null ? _ref3[0] : void 0) !== 'STRING') { |
| this.token('STRING', '""', 0, 0); |
| this.token('+', '+', 0, 0); |
| } |
| (_ref4 = this.tokens).push.apply(_ref4, tokens); |
| if (flags) { |
| flagsOffset = heregex.lastIndexOf(flags); |
| this.token(',', ',', flagsOffset, 0); |
| this.token('STRING', '"' + flags + '"', flagsOffset, flags.length); |
| } |
| this.token(')', ')', heregex.length - 1, 0); |
| return heregex.length; |
| }; |
| |
| 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('OUTDENT'); |
| this.outdebt = this.indebt = 0; |
| this.indent = size; |
| } else if (size < this.baseIndent) { |
| this.error('missing indentation', 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; |
| if (!((match = WHITESPACE.exec(this.chunk)) || (nline = this.chunk.charAt(0) === '\n'))) { |
| return 0; |
| } |
| prev = last(this.tokens); |
| 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, tag, value, _ref2, _ref3, _ref4, _ref5; |
| if (match = OPERATOR.exec(this.chunk)) { |
| value = match[0]; |
| if (CODE.test(value)) { |
| this.tagParameters(); |
| } |
| } else { |
| value = this.chunk.charAt(0); |
| } |
| tag = value; |
| prev = last(this.tokens); |
| if (value === '=' && prev) { |
| if (!prev[1].reserved && (_ref2 = prev[1], __indexOf.call(JS_FORBIDDEN, _ref2) >= 0)) { |
| this.error("reserved word \"" + (this.value()) + "\" can't be assigned"); |
| } |
| if ((_ref3 = prev[1]) === '||' || _ref3 === '&&') { |
| 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 === '(' && (_ref4 = prev[0], __indexOf.call(CALLABLE, _ref4) >= 0)) { |
| if (prev[0] === '?') { |
| prev[0] = 'FUNC_EXIST'; |
| } |
| tag = 'CALL_START'; |
| } else if (value === '[' && (_ref5 = prev[0], __indexOf.call(INDEXABLE, _ref5) >= 0)) { |
| tag = 'INDEX_START'; |
| switch (prev[0]) { |
| case '?': |
| prev[0] = 'INDEX_SOAK'; |
| } |
| } |
| } |
| switch (value) { |
| case '(': |
| case '{': |
| case '[': |
| this.ends.push(INVERSES[value]); |
| break; |
| case ')': |
| case '}': |
| case ']': |
| this.pair(value); |
| } |
| this.token(tag, value); |
| return value.length; |
| }; |
| |
| Lexer.prototype.sanitizeHeredoc = function(doc, options) { |
| var attempt, herecomment, indent, match, _ref2; |
| indent = options.indent, herecomment = options.herecomment; |
| if (herecomment) { |
| if (HEREDOC_ILLEGAL.test(doc)) { |
| this.error("block comment cannot contain \"*/\", starting"); |
| } |
| if (doc.indexOf('\n') < 0) { |
| return doc; |
| } |
| } else { |
| while (match = HEREDOC_INDENT.exec(doc)) { |
| attempt = match[1]; |
| if (indent === null || (0 < (_ref2 = attempt.length) && _ref2 < indent.length)) { |
| indent = attempt; |
| } |
| } |
| } |
| if (indent) { |
| doc = doc.replace(RegExp("\\n" + indent, "g"), '\n'); |
| } |
| if (!herecomment) { |
| doc = doc.replace(/^\n/, ''); |
| } |
| return doc; |
| }; |
| |
| 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.balancedString = function(str, end) { |
| var continueCount, i, letter, match, prev, stack, _i, _ref2; |
| continueCount = 0; |
| stack = [end]; |
| for (i = _i = 1, _ref2 = str.length; 1 <= _ref2 ? _i < _ref2 : _i > _ref2; i = 1 <= _ref2 ? ++_i : --_i) { |
| if (continueCount) { |
| --continueCount; |
| continue; |
| } |
| switch (letter = str.charAt(i)) { |
| case '\\': |
| ++continueCount; |
| continue; |
| case end: |
| stack.pop(); |
| if (!stack.length) { |
| return str.slice(0, +i + 1 || 9e9); |
| } |
| end = stack[stack.length - 1]; |
| continue; |
| } |
| if (end === '}' && (letter === '"' || letter === "'")) { |
| stack.push(end = letter); |
| } else if (end === '}' && letter === '/' && (match = HEREGEX.exec(str.slice(i)) || REGEX.exec(str.slice(i)))) { |
| continueCount += match[0].length - 1; |
| } else if (end === '}' && letter === '{') { |
| stack.push(end = '}'); |
| } else if (end === '"' && prev === '#' && letter === '{') { |
| stack.push(end = '}'); |
| } |
| prev = letter; |
| } |
| return this.error("missing " + (stack.pop()) + ", starting"); |
| }; |
| |
| Lexer.prototype.interpolateString = function(str, options) { |
| var column, errorToken, expr, heredoc, i, inner, interpolated, len, letter, lexedLength, line, locationToken, nested, offsetInChunk, pi, plusToken, popped, regex, rparen, strOffset, tag, token, tokens, value, _i, _len, _ref2, _ref3, _ref4; |
| if (options == null) { |
| options = {}; |
| } |
| heredoc = options.heredoc, regex = options.regex, offsetInChunk = options.offsetInChunk, strOffset = options.strOffset, lexedLength = options.lexedLength; |
| offsetInChunk || (offsetInChunk = 0); |
| strOffset || (strOffset = 0); |
| lexedLength || (lexedLength = str.length); |
| tokens = []; |
| pi = 0; |
| i = -1; |
| while (letter = str.charAt(i += 1)) { |
| if (letter === '\\') { |
| i += 1; |
| continue; |
| } |
| if (!(letter === '#' && str.charAt(i + 1) === '{' && (expr = this.balancedString(str.slice(i + 1), '}')))) { |
| continue; |
| } |
| if (pi < i) { |
| tokens.push(this.makeToken('NEOSTRING', str.slice(pi, i), strOffset + pi)); |
| } |
| if (!errorToken) { |
| errorToken = this.makeToken('', 'string interpolation', offsetInChunk + i + 1, 2); |
| } |
| inner = expr.slice(1, -1); |
| if (inner.length) { |
| _ref2 = this.getLineAndColumnFromChunk(strOffset + i + 2), line = _ref2[0], column = _ref2[1]; |
| nested = new Lexer().tokenize(inner, { |
| line: line, |
| column: column, |
| rewrite: false |
| }); |
| popped = nested.pop(); |
| if (((_ref3 = nested[0]) != null ? _ref3[0] : void 0) === 'TERMINATOR') { |
| popped = nested.shift(); |
| } |
| if (len = nested.length) { |
| if (len > 1) { |
| nested.unshift(this.makeToken('(', '(', strOffset + i + 1, 0)); |
| nested.push(this.makeToken(')', ')', strOffset + i + 1 + inner.length, 0)); |
| } |
| tokens.push(['TOKENS', nested]); |
| } |
| } |
| i += expr.length; |
| pi = i + 1; |
| } |
| if ((i > pi && pi < str.length)) { |
| tokens.push(this.makeToken('NEOSTRING', str.slice(pi), strOffset + pi)); |
| } |
| if (regex) { |
| return tokens; |
| } |
| if (!tokens.length) { |
| return this.token('STRING', '""', offsetInChunk, lexedLength); |
| } |
| if (tokens[0][0] !== 'NEOSTRING') { |
| tokens.unshift(this.makeToken('NEOSTRING', '', offsetInChunk)); |
| } |
| if (interpolated = tokens.length > 1) { |
| this.token('(', '(', offsetInChunk, 0, errorToken); |
| } |
| for (i = _i = 0, _len = tokens.length; _i < _len; i = ++_i) { |
| token = tokens[i]; |
| tag = token[0], value = token[1]; |
| if (i) { |
| if (i) { |
| plusToken = this.token('+', '+'); |
| } |
| locationToken = tag === 'TOKENS' ? value[0] : 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 |
| }; |
| } |
| if (tag === 'TOKENS') { |
| (_ref4 = this.tokens).push.apply(_ref4, value); |
| } else if (tag === 'NEOSTRING') { |
| token[0] = 'STRING'; |
| token[1] = this.makeString(value, '"', heredoc); |
| this.tokens.push(token); |
| } else { |
| this.error("Unexpected " + tag); |
| } |
| } |
| if (interpolated) { |
| rparen = this.makeToken(')', ')', offsetInChunk + lexedLength, 0); |
| rparen.stringEnd = true; |
| this.tokens.push(rparen); |
| } |
| return tokens; |
| }; |
| |
| Lexer.prototype.pair = function(tag) { |
| var wanted; |
| if (tag !== (wanted = last(this.ends))) { |
| if ('OUTDENT' !== wanted) { |
| this.error("unmatched " + tag); |
| } |
| this.outdentToken(last(this.indents), true); |
| return this.pair(tag); |
| } |
| return this.ends.pop(); |
| }; |
| |
| Lexer.prototype.getLineAndColumnFromChunk = function(offset) { |
| var column, lineCount, lines, 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) { |
| lines = string.split('\n'); |
| column = last(lines).length; |
| } else { |
| column += string.length; |
| } |
| return [this.chunkLine + lineCount, column]; |
| }; |
| |
| Lexer.prototype.makeToken = function(tag, value, offsetInChunk, length) { |
| var lastCharacter, locationData, token, _ref2, _ref3; |
| 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(index, tag) { |
| var tok; |
| return (tok = last(this.tokens, index)) && (tag ? tok[0] = tag : tok[0]); |
| }; |
| |
| Lexer.prototype.value = function(index, val) { |
| var tok; |
| return (tok = last(this.tokens, index)) && (val ? tok[1] = val : tok[1]); |
| }; |
| |
| 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 === '**' || _ref2 === 'SHIFT' || _ref2 === 'RELATION' || _ref2 === 'COMPARE' || _ref2 === 'LOGIC' || _ref2 === 'THROW' || _ref2 === 'EXTENDS'); |
| }; |
| |
| Lexer.prototype.removeNewlines = function(str) { |
| return str.replace(/^\s*\n\s*/, '').replace(/([^\\]|\\\\)\s*\n\s*$/, '$1'); |
| }; |
| |
| Lexer.prototype.escapeLines = function(str, heredoc) { |
| str = str.replace(/\\[^\S\n]*(\n|\\)\s*/g, function(escaped, character) { |
| if (character === '\n') { |
| return ''; |
| } else { |
| return escaped; |
| } |
| }); |
| if (heredoc) { |
| return str.replace(MULTILINER, '\\n'); |
| } else { |
| return str.replace(/\s*\n\s*/g, ' '); |
| } |
| }; |
| |
| Lexer.prototype.makeString = function(body, quote, heredoc) { |
| if (!body) { |
| return quote + quote; |
| } |
| body = body.replace(RegExp("\\\\(" + quote + "|\\\\)", "g"), function(match, contents) { |
| if (contents === quote) { |
| return contents; |
| } else { |
| return match; |
| } |
| }); |
| body = body.replace(RegExp("" + quote, "g"), '\\$&'); |
| return quote + this.escapeLines(body, heredoc) + quote; |
| }; |
| |
| Lexer.prototype.error = function(message, offset) { |
| var first_column, first_line, _ref2; |
| if (offset == null) { |
| offset = 0; |
| } |
| _ref2 = this.getLineAndColumnFromChunk(offset), first_line = _ref2[0], first_column = _ref2[1]; |
| return throwSyntaxError(message, { |
| first_line: first_line, |
| first_column: first_column |
| }); |
| }; |
| |
| return Lexer; |
| |
| })(); |
| |
| JS_KEYWORDS = ['true', 'false', 'null', 'this', 'new', 'delete', 'typeof', 'in', 'instanceof', 'return', 'throw', 'break', 'continue', 'debugger', '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', '__hasProp', '__extends', '__slice', '__bind', '__indexOf', 'implements', 'interface', 'package', 'private', 'protected', 'public', 'static', 'yield']; |
| |
| STRICT_PROSCRIBED = ['arguments', 'eval']; |
| |
| 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 = /^([$A-Za-z_\x7f-\uffff][$\w\x7f-\uffff]*)([^\n\S]*:(?!:))?/; |
| |
| NUMBER = /^0b[01]+|^0o[0-7]+|^0x[\da-f]+|^\d*\.?\d+(?:e[+-]?\d+)?/i; |
| |
| HEREDOC = /^("""|''')((?:\\[\s\S]|[^\\])*?)(?:\n[^\n\S]*)?\1/; |
| |
| OPERATOR = /^(?:[-=]>|[-+*\/%<>&|^!?=]=|>>>=?|([-+:])\1|([&|<>*\/%])\2=?|\?(\.|::)|\.{2,3})/; |
| |
| WHITESPACE = /^[^\n\S]+/; |
| |
| COMMENT = /^###([^#][\s\S]*?)(?:###[^\n\S]*|###$)|^(?:\s*#(?!##[^#]).*)+/; |
| |
| CODE = /^[-=]>/; |
| |
| MULTI_DENT = /^(?:\n[^\n\S]*)+/; |
| |
| SIMPLESTR = /^'[^\\']*(?:\\[\s\S][^\\']*)*'/; |
| |
| JSTOKEN = /^`[^\\`]*(?:\\.[^\\`]*)*`/; |
| |
| REGEX = /^(\/(?![\s=])[^[\/\n\\]*(?:(?:\\[\s\S]|\[[^\]\n\\]*(?:\\[\s\S][^\]\n\\]*)*])[^[\/\n\\]*)*\/)([imgy]{0,4})(?!\w)/; |
| |
| HEREGEX = /^\/{3}((?:\\?[\s\S])+?)\/{3}([imgy]{0,4})(?!\w)/; |
| |
| HEREGEX_OMIT = /((?:\\\\)+)|\\(\s|\/)|\s+(?:#.*)?/g; |
| |
| MULTILINER = /\n/g; |
| |
| HEREDOC_INDENT = /\n+([^\n\S]*)/g; |
| |
| HEREDOC_ILLEGAL = /\*\//; |
| |
| LINE_CONTINUER = /^\s*(?:,|\??\.(?![.\d])|::)/; |
| |
| TRAILING_SPACES = /\s+$/; |
| |
| COMPOUND_ASSIGN = ['-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?=', '<<=', '>>=', '>>>=', '&=', '^=', '|=', '**=', '//=', '%%=']; |
| |
| UNARY = ['NEW', 'TYPEOF', 'DELETE', 'DO']; |
| |
| UNARY_MATH = ['!', '~']; |
| |
| LOGIC = ['&&', '||', '&', '|', '^']; |
| |
| SHIFT = ['<<', '>>', '>>>']; |
| |
| COMPARE = ['==', '!=', '<', '>', '<=', '>=']; |
| |
| MATH = ['*', '/', '%', '//', '%%']; |
| |
| RELATION = ['IN', 'OF', 'INSTANCEOF']; |
| |
| BOOL = ['TRUE', 'FALSE']; |
| |
| NOT_REGEX = ['NUMBER', 'REGEX', 'BOOL', 'NULL', 'UNDEFINED', '++', '--']; |
| |
| NOT_SPACED_REGEX = NOT_REGEX.concat(')', '}', 'THIS', 'IDENTIFIER', 'STRING', ']'); |
| |
| CALLABLE = ['IDENTIFIER', 'STRING', 'REGEX', ')', ']', '}', '?', '::', '@', 'THIS', 'SUPER']; |
| |
| INDEXABLE = CALLABLE.concat('NUMBER', 'BOOL', 'NULL', 'UNDEFINED'); |
| |
| LINE_BREAK = ['INDENT', 'OUTDENT', 'TERMINATOR']; |
| |
| INDENTABLE_CLOSERS = [')', '}', ']']; |
| |
| }).call(this); |
