// Generated by CoffeeScript 1.12.7 (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, HERE_JSTOKEN, IDENTIFIER, INDENTABLE_CLOSERS, INDEXABLE, INVERSES, JSTOKEN, JS_KEYWORDS, LEADING_BLANK_LINE, LINE_BREAK, LINE_CONTINUER, Lexer, MATH, MULTI_DENT, NOT_REGEX, NUMBER, OPERATOR, POSSIBLY_DIVISION, REGEX, REGEX_FLAGS, REGEX_ILLEGAL, REGEX_INVALID_ESCAPE, RELATION, RESERVED, Rewriter, SHIFT, SIMPLE_STRING_OMIT, STRICT_PROSCRIBED, STRING_DOUBLE, STRING_INVALID_ESCAPE, STRING_OMIT, STRING_SINGLE, STRING_START, TRAILING_BLANK_LINE, TRAILING_SPACES, UNARY, UNARY_MATH, UNFINISHED, UNICODE_CODE_POINT_ESCAPE, VALID_FLAGS, WHITESPACE, compact, count, invertLiterate, isForFrom, isUnassignable, 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; }, slice = [].slice; 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.seenImport = false; this.seenExport = false; this.importSpecifierList = false; this.exportSpecifierList = 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, id, idLength, input, match, poppedToken, prev, ref2, ref3, ref4, ref5, ref6, ref7, ref8, ref9, 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; } if (id === 'as' && this.seenImport) { if (this.value() === '*') { this.tokens[this.tokens.length - 1][0] = 'IMPORT_ALL'; } else if (ref2 = this.value(), indexOf.call(COFFEE_KEYWORDS, ref2) >= 0) { this.tokens[this.tokens.length - 1][0] = 'IDENTIFIER'; } if ((ref3 = this.tag()) === 'DEFAULT' || ref3 === 'IMPORT_ALL' || ref3 === 'IDENTIFIER') { this.token('AS', id); return id.length; } } if (id === 'as' && this.seenExport && ((ref4 = this.tag()) === 'IDENTIFIER' || ref4 === 'DEFAULT')) { this.token('AS', id); return id.length; } if (id === 'default' && this.seenExport && ((ref5 = this.tag()) === 'EXPORT' || ref5 === 'AS')) { this.token('DEFAULT', id); return id.length; } ref6 = this.tokens, prev = ref6[ref6.length - 1]; tag = colon || (prev != null) && (((ref7 = prev[0]) === '.' || ref7 === '?.' || ref7 === '::' || ref7 === '?::') || !prev.spaced && prev[0] === '@') ? 'PROPERTY' : 'IDENTIFIER'; if (tag === 'IDENTIFIER' && (indexOf.call(JS_KEYWORDS, id) >= 0 || indexOf.call(COFFEE_KEYWORDS, id) >= 0) && !(this.exportSpecifierList && indexOf.call(COFFEE_KEYWORDS, id) >= 0)) { tag = id.toUpperCase(); if (tag === 'WHEN' && (ref8 = this.tag(), indexOf.call(LINE_BREAK, ref8) >= 0)) { tag = 'LEADING_WHEN'; } else if (tag === 'FOR') { this.seenFor = true; } else if (tag === 'UNLESS') { tag = 'IF'; } else if (tag === 'IMPORT') { this.seenImport = true; } else if (tag === 'EXPORT') { this.seenExport = true; } 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; } } } } else if (tag === 'IDENTIFIER' && this.seenFor && id === 'from' && isForFrom(prev)) { tag = 'FORFROM'; this.seenFor = false; } if (tag === 'IDENTIFIER' && indexOf.call(RESERVED, id) >= 0) { this.error("reserved word '" + id + "'", { length: id.length }); } if (tag !== 'PROPERTY') { 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 'true': case 'false': return 'BOOL'; case 'break': case 'continue': case 'debugger': return 'STATEMENT'; case '&&': case '||': return id; default: return tag; } })(); } tagToken = this.token(tag, id, 0, idLength); if (alias) { tagToken.origin = [tag, alias, tagToken[2]]; } if (poppedToken) { ref9 = [poppedToken[2].first_line, poppedToken[2].first_column], tagToken[2].first_line = ref9[0], tagToken[2].first_column = ref9[1]; } if (colon) { colonOffset = input.lastIndexOf(':'); this.token(':', ':', colonOffset, colon.length); } return input.length; }; Lexer.prototype.numberToken = function() { var base, lexedLength, match, number, numberValue, ref2, tag; if (!(match = NUMBER.exec(this.chunk))) { return 0; } number = match[0]; lexedLength = number.length; switch (false) { case !/^0[BOX]/.test(number): this.error("radix prefix in '" + number + "' must be lowercase", { offset: 1 }); break; case !/^(?!0x).*E/.test(number): this.error("exponential notation in '" + number + "' must be indicated with a lowercase 'e'", { offset: number.indexOf('E') }); break; case !/^0\d*[89]/.test(number): this.error("decimal literal '" + number + "' must not be prefixed with '0'", { length: lexedLength }); break; case !/^0\d+/.test(number): this.error("octal literal '" + number + "' must be prefixed with '0o'", { length: lexedLength }); } base = (function() { switch (number.charAt(1)) { case 'b': return 2; case 'o': return 8; case 'x': return 16; default: return null; } })(); numberValue = base != null ? parseInt(number.slice(2), base) : parseFloat(number); if ((ref2 = number.charAt(1)) === 'b' || ref2 === 'o') { number = "0x" + (numberValue.toString(16)); } tag = numberValue === 2e308 ? 'INFINITY' : 'NUMBER'; this.token(tag, 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; } if (this.tokens.length && this.value() === 'from' && (this.seenImport || this.seenExport)) { this.tokens[this.tokens.length - 1][0] = 'FROM'; } 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("\\n" + indent, "g"); } this.mergeInterpolationTokens(tokens, { delimiter: delimiter }, (function(_this) { return function(value, i) { value = _this.formatString(value, { delimiter: quote }); if (indentRegex) { value = value.replace(indentRegex, '\n'); } if (i === 0) { value = value.replace(LEADING_BLANK_LINE, ''); } if (i === $) { value = value.replace(TRAILING_BLANK_LINE, ''); } return value; }; })(this)); } else { this.mergeInterpolationTokens(tokens, { delimiter: delimiter }, (function(_this) { return function(value, i) { value = _this.formatString(value, { delimiter: quote }); 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 = HERE_JSTOKEN.exec(this.chunk) || JSTOKEN.exec(this.chunk)))) { return 0; } script = match[1].replace(/\\+(`|$)/g, function(string) { return string.slice(-Math.ceil(string.length / 2)); }); this.token('JS', script, 0, match[0].length); return match[0].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 }); body = this.formatRegex(body, { delimiter: '/' }); 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 - 1, 0); this.token('STRING', '"' + flags + '"', index - 1, flags.length); } this.token(')', ')', end - 1, 0); this.token('REGEX_END', ')', end - 1, 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; if (!this.importSpecifierList) { this.seenImport = false; } if (!this.exportSpecifierList) { this.seenExport = 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, message, origin, prev, ref2, ref3, ref4, ref5, ref6, skipToken, 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 (prev && indexOf.call(['='].concat(slice.call(COMPOUND_ASSIGN)), value) >= 0) { skipToken = false; if (value === '=' && ((ref3 = prev[1]) === '||' || ref3 === '&&') && !prev.spaced) { prev[0] = 'COMPOUND_ASSIGN'; prev[1] += '='; prev = this.tokens[this.tokens.length - 2]; skipToken = true; } if (prev && prev[0] !== 'PROPERTY') { origin = (ref4 = prev.origin) != null ? ref4 : prev; message = isUnassignable(prev[1], origin[1]); if (message) { this.error(message, origin[2]); } } if (skipToken) { return value.length; } } if (value === '{' && this.seenImport) { this.importSpecifierList = true; } else if (this.importSpecifierList && value === '}') { this.importSpecifierList = false; } else if (value === '{' && (prev != null ? prev[0] : void 0) === 'EXPORT') { this.exportSpecifierList = true; } else if (this.exportSpecifierList && value === '}') { this.exportSpecifierList = false; } if (value === ';') { this.seenFor = this.seenImport = this.seenExport = false; tag = 'TERMINATOR'; } else if (value === '*' && prev[0] === 'EXPORT') { tag = 'EXPORT_ALL'; } 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 (value === '?' && (prev != null ? prev.spaced : void 0)) { tag = 'BIN?'; } 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; if (lastToken[1].substr(-1) === '\n') { lastToken[2].last_line += 1; lastToken[2].last_column = delimiter.length - 1; } else { 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.call(this, 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 = length > 0 ? length - 1 : 0; 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(), indexOf.call(UNFINISHED, ref2) >= 0); }; Lexer.prototype.formatString = function(str, options) { return this.replaceUnicodeCodePointEscapes(str.replace(STRING_OMIT, '$1'), options); }; Lexer.prototype.formatHeregex = function(str) { return this.formatRegex(str.replace(HEREGEX_OMIT, '$1$2'), { delimiter: '///' }); }; Lexer.prototype.formatRegex = function(str, options) { return this.replaceUnicodeCodePointEscapes(str, options); }; Lexer.prototype.unicodeCodePointToUnicodeEscapes = function(codePoint) { var high, low, toUnicodeEscape; toUnicodeEscape = function(val) { var str; str = val.toString(16); return "\\u" + (repeat('0', 4 - str.length)) + str; }; if (codePoint < 0x10000) { return toUnicodeEscape(codePoint); } high = Math.floor((codePoint - 0x10000) / 0x400) + 0xD800; low = (codePoint - 0x10000) % 0x400 + 0xDC00; return "" + (toUnicodeEscape(high)) + (toUnicodeEscape(low)); }; Lexer.prototype.replaceUnicodeCodePointEscapes = function(str, options) { return str.replace(UNICODE_CODE_POINT_ESCAPE, (function(_this) { return function(match, escapedBackslash, codePointHex, offset) { var codePointDecimal; if (escapedBackslash) { return escapedBackslash; } codePointDecimal = parseInt(codePointHex, 16); if (codePointDecimal > 0x10ffff) { _this.error("unicode code point escapes greater than \\u{10ffff} are not allowed", { offset: offset + options.delimiter.length, length: codePointHex.length + 4 }); } return _this.unicodeCodePointToUnicodeEscapes(codePointDecimal); }; })(this)); }; Lexer.prototype.validateEscapes = function(str, options) { var before, hex, invalidEscape, invalidEscapeRegex, match, message, octal, ref2, unicode, unicodeCodePoint; if (options == null) { options = {}; } invalidEscapeRegex = options.isRegex ? REGEX_INVALID_ESCAPE : STRING_INVALID_ESCAPE; match = invalidEscapeRegex.exec(str); if (!match) { return; } match[0], before = match[1], octal = match[2], hex = match[3], unicodeCodePoint = match[4], unicode = match[5]; message = octal ? "octal escape sequences are not allowed" : "invalid escape sequence"; invalidEscape = "\\" + (octal || hex || unicodeCodePoint || 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; })(); isUnassignable = function(name, displayName) { if (displayName == null) { displayName = name; } switch (false) { case indexOf.call(slice.call(JS_KEYWORDS).concat(slice.call(COFFEE_KEYWORDS)), name) < 0: return "keyword '" + displayName + "' can't be assigned"; case indexOf.call(STRICT_PROSCRIBED, name) < 0: return "'" + displayName + "' can't be assigned"; case indexOf.call(RESERVED, name) < 0: return "reserved word '" + displayName + "' can't be assigned"; default: return false; } }; exports.isUnassignable = isUnassignable; isForFrom = function(prev) { var ref2; if (prev[0] === 'IDENTIFIER') { if (prev[1] === 'from') { prev[1][0] = 'IDENTIFIER'; true; } return true; } else if (prev[0] === 'FOR') { return false; } else if ((ref2 = prev[1]) === '{' || ref2 === '[' || ref2 === ',' || ref2 === ':') { return false; } else { return true; } }; 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', 'import', 'export', 'default']; COFFEE_KEYWORDS = ['undefined', 'Infinity', 'NaN', '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', 'function', 'var', 'void', 'with', 'const', 'let', 'enum', 'native', 'implements', 'interface', 'package', 'private', 'protected', 'public', 'static']; STRICT_PROSCRIBED = ['arguments', 'eval']; exports.JS_FORBIDDEN = JS_KEYWORDS.concat(RESERVED).concat(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 = /^`(?!``)((?:[^`\\]|\\[\s\S])*)`/; HERE_JSTOKEN = /^```((?:[^`\\]|\\[\s\S]|`(?!``))*)```/; 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)[imguy]*$/; HEREGEX = /^(?:[^\\\/#]|\\[\s\S]|\/(?!\/\/)|\#(?!\{))*/; HEREGEX_OMIT = /((?:\\\\)+)|\\(\s)|\s+(?:#.*)?/g; REGEX_ILLEGAL = /^(\/|\/{3}\s*)(\*)/; POSSIBLY_DIVISION = /^\/=?\s/; HERECOMMENT_ILLEGAL = /\*\//; LINE_CONTINUER = /^\s*(?:,|\??\.(?![.\d])|::)/; STRING_INVALID_ESCAPE = /((?:^|[^\\])(?:\\\\)*)\\(?:(0[0-7]|[1-7])|(x(?![\da-fA-F]{2}).{0,2})|(u\{(?![\da-fA-F]{1,}\})[^}]*\}?)|(u(?!\{|[\da-fA-F]{4}).{0,4}))/; REGEX_INVALID_ESCAPE = /((?:^|[^\\])(?:\\\\)*)\\(?:(0[0-7])|(x(?![\da-fA-F]{2}).{0,2})|(u\{(?![\da-fA-F]{1,}\})[^}]*\}?)|(u(?!\{|[\da-fA-F]{4}).{0,4}))/; UNICODE_CODE_POINT_ESCAPE = /(\\\\)|\\u\{([\da-fA-F]+)\}/g; LEADING_BLANK_LINE = /^[^\n\S]*\n/; TRAILING_BLANK_LINE = /\n[^\n\S]*$/; TRAILING_SPACES = /\s+$/; COMPOUND_ASSIGN = ['-=', '+=', '/=', '*=', '%=', '||=', '&&=', '?=', '<<=', '>>=', '>>>=', '&=', '^=', '|=', '**=', '//=', '%%=']; UNARY = ['NEW', 'TYPEOF', 'DELETE', 'DO']; UNARY_MATH = ['!', '~']; SHIFT = ['<<', '>>', '>>>']; COMPARE = ['==', '!=', '<', '>', '<=', '>=']; MATH = ['*', '/', '%', '//', '%%']; RELATION = ['IN', 'OF', 'INSTANCEOF']; BOOL = ['TRUE', 'FALSE']; CALLABLE = ['IDENTIFIER', 'PROPERTY', ')', ']', '?', '@', 'THIS', 'SUPER']; INDEXABLE = CALLABLE.concat(['NUMBER', 'INFINITY', 'NAN', 'STRING', 'STRING_END', 'REGEX', 'REGEX_END', 'BOOL', 'NULL', 'UNDEFINED', '}', '::']); NOT_REGEX = INDEXABLE.concat(['++', '--']); LINE_BREAK = ['INDENT', 'OUTDENT', 'TERMINATOR']; INDENTABLE_CLOSERS = [')', '}', ']']; UNFINISHED = ['\\', '.', '?.', '?::', 'UNARY', 'MATH', 'UNARY_MATH', '+', '-', '**', 'SHIFT', 'RELATION', 'COMPARE', '&', '^', '|', '&&', '||', 'BIN?', 'THROW', 'EXTENDS', 'DEFAULT']; }).call(this);