text: // 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);
  