Initial commit

1 files changed, 1459 insertions, 0 deletions

diff --git a/_mint/node_modules/js-beautify/js/src/javascript/beautifier.js b/_mint/node_modules/js-beautify/js/src/javascript/beautifier.js
new file mode 100644
index 0000000..c3876b6
--- /dev/null
+++ b/_mint/node_modules/js-beautify/js/src/javascript/beautifier.js
@@ -0,0 +1,1459 @@
+/*jshint node:true */
+/*
+
+  The MIT License (MIT)
+
+  Copyright (c) 2007-2018 Einar Lielmanis, Liam Newman, and contributors.
+
+  Permission is hereby granted, free of charge, to any person
+  obtaining a copy of this software and associated documentation files
+  (the "Software"), to deal in the Software without restriction,
+  including without limitation the rights to use, copy, modify, merge,
+  publish, distribute, sublicense, and/or sell copies of the Software,
+  and to permit persons to whom the Software is furnished to do so,
+  subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be
+  included in all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+
+'use strict';
+
+var Output = require('../core/output').Output;
+var Token = require('../core/token').Token;
+var acorn = require('./acorn');
+var Options = require('./options').Options;
+var Tokenizer = require('./tokenizer').Tokenizer;
+var line_starters = require('./tokenizer').line_starters;
+var positionable_operators = require('./tokenizer').positionable_operators;
+var TOKEN = require('./tokenizer').TOKEN;
+
+
+function in_array(what, arr) {
+  return arr.indexOf(what) !== -1;
+}
+
+function ltrim(s) {
+  return s.replace(/^\s+/g, '');
+}
+
+function generateMapFromStrings(list) {
+  var result = {};
+  for (var x = 0; x < list.length; x++) {
+    // make the mapped names underscored instead of dash
+    result[list[x].replace(/-/g, '_')] = list[x];
+  }
+  return result;
+}
+
+function reserved_word(token, word) {
+  return token && token.type === TOKEN.RESERVED && token.text === word;
+}
+
+function reserved_array(token, words) {
+  return token && token.type === TOKEN.RESERVED && in_array(token.text, words);
+}
+// Unsure of what they mean, but they work. Worth cleaning up in future.
+var special_words = ['case', 'return', 'do', 'if', 'throw', 'else', 'await', 'break', 'continue', 'async'];
+
+var validPositionValues = ['before-newline', 'after-newline', 'preserve-newline'];
+
+// Generate map from array
+var OPERATOR_POSITION = generateMapFromStrings(validPositionValues);
+
+var OPERATOR_POSITION_BEFORE_OR_PRESERVE = [OPERATOR_POSITION.before_newline, OPERATOR_POSITION.preserve_newline];
+
+var MODE = {
+  BlockStatement: 'BlockStatement', // 'BLOCK'
+  Statement: 'Statement', // 'STATEMENT'
+  ObjectLiteral: 'ObjectLiteral', // 'OBJECT',
+  ArrayLiteral: 'ArrayLiteral', //'[EXPRESSION]',
+  ForInitializer: 'ForInitializer', //'(FOR-EXPRESSION)',
+  Conditional: 'Conditional', //'(COND-EXPRESSION)',
+  Expression: 'Expression' //'(EXPRESSION)'
+};
+
+function remove_redundant_indentation(output, frame) {
+  // This implementation is effective but has some issues:
+  //     - can cause line wrap to happen too soon due to indent removal
+  //           after wrap points are calculated
+  // These issues are minor compared to ugly indentation.
+
+  if (frame.multiline_frame ||
+    frame.mode === MODE.ForInitializer ||
+    frame.mode === MODE.Conditional) {
+    return;
+  }
+
+  // remove one indent from each line inside this section
+  output.remove_indent(frame.start_line_index);
+}
+
+// we could use just string.split, but
+// IE doesn't like returning empty strings
+function split_linebreaks(s) {
+  //return s.split(/\x0d\x0a|\x0a/);
+
+  s = s.replace(acorn.allLineBreaks, '\n');
+  var out = [],
+    idx = s.indexOf("\n");
+  while (idx !== -1) {
+    out.push(s.substring(0, idx));
+    s = s.substring(idx + 1);
+    idx = s.indexOf("\n");
+  }
+  if (s.length) {
+    out.push(s);
+  }
+  return out;
+}
+
+function is_array(mode) {
+  return mode === MODE.ArrayLiteral;
+}
+
+function is_expression(mode) {
+  return in_array(mode, [MODE.Expression, MODE.ForInitializer, MODE.Conditional]);
+}
+
+function all_lines_start_with(lines, c) {
+  for (var i = 0; i < lines.length; i++) {
+    var line = lines[i].trim();
+    if (line.charAt(0) !== c) {
+      return false;
+    }
+  }
+  return true;
+}
+
+function each_line_matches_indent(lines, indent) {
+  var i = 0,
+    len = lines.length,
+    line;
+  for (; i < len; i++) {
+    line = lines[i];
+    // allow empty lines to pass through
+    if (line && line.indexOf(indent) !== 0) {
+      return false;
+    }
+  }
+  return true;
+}
+
+
+function Beautifier(source_text, options) {
+  options = options || {};
+  this._source_text = source_text || '';
+
+  this._output = null;
+  this._tokens = null;
+  this._last_last_text = null;
+  this._flags = null;
+  this._previous_flags = null;
+
+  this._flag_store = null;
+  this._options = new Options(options);
+}
+
+Beautifier.prototype.create_flags = function(flags_base, mode) {
+  var next_indent_level = 0;
+  if (flags_base) {
+    next_indent_level = flags_base.indentation_level;
+    if (!this._output.just_added_newline() &&
+      flags_base.line_indent_level > next_indent_level) {
+      next_indent_level = flags_base.line_indent_level;
+    }
+  }
+
+  var next_flags = {
+    mode: mode,
+    parent: flags_base,
+    last_token: flags_base ? flags_base.last_token : new Token(TOKEN.START_BLOCK, ''), // last token text
+    last_word: flags_base ? flags_base.last_word : '', // last TOKEN.WORD passed
+    declaration_statement: false,
+    declaration_assignment: false,
+    multiline_frame: false,
+    inline_frame: false,
+    if_block: false,
+    else_block: false,
+    do_block: false,
+    do_while: false,
+    import_block: false,
+    in_case_statement: false, // switch(..){ INSIDE HERE }
+    in_case: false, // we're on the exact line with "case 0:"
+    case_body: false, // the indented case-action block
+    indentation_level: next_indent_level,
+    alignment: 0,
+    line_indent_level: flags_base ? flags_base.line_indent_level : next_indent_level,
+    start_line_index: this._output.get_line_number(),
+    ternary_depth: 0
+  };
+  return next_flags;
+};
+
+Beautifier.prototype._reset = function(source_text) {
+  var baseIndentString = source_text.match(/^[\t ]*/)[0];
+
+  this._last_last_text = ''; // pre-last token text
+  this._output = new Output(this._options, baseIndentString);
+
+  // If testing the ignore directive, start with output disable set to true
+  this._output.raw = this._options.test_output_raw;
+
+
+  // Stack of parsing/formatting states, including MODE.
+  // We tokenize, parse, and output in an almost purely a forward-only stream of token input
+  // and formatted output.  This makes the beautifier less accurate than full parsers
+  // but also far more tolerant of syntax errors.
+  //
+  // For example, the default mode is MODE.BlockStatement. If we see a '{' we push a new frame of type
+  // MODE.BlockStatement on the the stack, even though it could be object literal.  If we later
+  // encounter a ":", we'll switch to to MODE.ObjectLiteral.  If we then see a ";",
+  // most full parsers would die, but the beautifier gracefully falls back to
+  // MODE.BlockStatement and continues on.
+  this._flag_store = [];
+  this.set_mode(MODE.BlockStatement);
+  var tokenizer = new Tokenizer(source_text, this._options);
+  this._tokens = tokenizer.tokenize();
+  return source_text;
+};
+
+Beautifier.prototype.beautify = function() {
+  // if disabled, return the input unchanged.
+  if (this._options.disabled) {
+    return this._source_text;
+  }
+
+  var sweet_code;
+  var source_text = this._reset(this._source_text);
+
+  var eol = this._options.eol;
+  if (this._options.eol === 'auto') {
+    eol = '\n';
+    if (source_text && acorn.lineBreak.test(source_text || '')) {
+      eol = source_text.match(acorn.lineBreak)[0];
+    }
+  }
+
+  var current_token = this._tokens.next();
+  while (current_token) {
+    this.handle_token(current_token);
+
+    this._last_last_text = this._flags.last_token.text;
+    this._flags.last_token = current_token;
+
+    current_token = this._tokens.next();
+  }
+
+  sweet_code = this._output.get_code(eol);
+
+  return sweet_code;
+};
+
+Beautifier.prototype.handle_token = function(current_token, preserve_statement_flags) {
+  if (current_token.type === TOKEN.START_EXPR) {
+    this.handle_start_expr(current_token);
+  } else if (current_token.type === TOKEN.END_EXPR) {
+    this.handle_end_expr(current_token);
+  } else if (current_token.type === TOKEN.START_BLOCK) {
+    this.handle_start_block(current_token);
+  } else if (current_token.type === TOKEN.END_BLOCK) {
+    this.handle_end_block(current_token);
+  } else if (current_token.type === TOKEN.WORD) {
+    this.handle_word(current_token);
+  } else if (current_token.type === TOKEN.RESERVED) {
+    this.handle_word(current_token);
+  } else if (current_token.type === TOKEN.SEMICOLON) {
+    this.handle_semicolon(current_token);
+  } else if (current_token.type === TOKEN.STRING) {
+    this.handle_string(current_token);
+  } else if (current_token.type === TOKEN.EQUALS) {
+    this.handle_equals(current_token);
+  } else if (current_token.type === TOKEN.OPERATOR) {
+    this.handle_operator(current_token);
+  } else if (current_token.type === TOKEN.COMMA) {
+    this.handle_comma(current_token);
+  } else if (current_token.type === TOKEN.BLOCK_COMMENT) {
+    this.handle_block_comment(current_token, preserve_statement_flags);
+  } else if (current_token.type === TOKEN.COMMENT) {
+    this.handle_comment(current_token, preserve_statement_flags);
+  } else if (current_token.type === TOKEN.DOT) {
+    this.handle_dot(current_token);
+  } else if (current_token.type === TOKEN.EOF) {
+    this.handle_eof(current_token);
+  } else if (current_token.type === TOKEN.UNKNOWN) {
+    this.handle_unknown(current_token, preserve_statement_flags);
+  } else {
+    this.handle_unknown(current_token, preserve_statement_flags);
+  }
+};
+
+Beautifier.prototype.handle_whitespace_and_comments = function(current_token, preserve_statement_flags) {
+  var newlines = current_token.newlines;
+  var keep_whitespace = this._options.keep_array_indentation && is_array(this._flags.mode);
+
+  if (current_token.comments_before) {
+    var comment_token = current_token.comments_before.next();
+    while (comment_token) {
+      // The cleanest handling of inline comments is to treat them as though they aren't there.
+      // Just continue formatting and the behavior should be logical.
+      // Also ignore unknown tokens.  Again, this should result in better behavior.
+      this.handle_whitespace_and_comments(comment_token, preserve_statement_flags);
+      this.handle_token(comment_token, preserve_statement_flags);
+      comment_token = current_token.comments_before.next();
+    }
+  }
+
+  if (keep_whitespace) {
+    for (var i = 0; i < newlines; i += 1) {
+      this.print_newline(i > 0, preserve_statement_flags);
+    }
+  } else {
+    if (this._options.max_preserve_newlines && newlines > this._options.max_preserve_newlines) {
+      newlines = this._options.max_preserve_newlines;
+    }
+
+    if (this._options.preserve_newlines) {
+      if (newlines > 1) {
+        this.print_newline(false, preserve_statement_flags);
+        for (var j = 1; j < newlines; j += 1) {
+          this.print_newline(true, preserve_statement_flags);
+        }
+      }
+    }
+  }
+
+};
+
+var newline_restricted_tokens = ['async', 'break', 'continue', 'return', 'throw', 'yield'];
+
+Beautifier.prototype.allow_wrap_or_preserved_newline = function(current_token, force_linewrap) {
+  force_linewrap = (force_linewrap === undefined) ? false : force_linewrap;
+
+  // Never wrap the first token on a line
+  if (this._output.just_added_newline()) {
+    return;
+  }
+
+  var shouldPreserveOrForce = (this._options.preserve_newlines && current_token.newlines) || force_linewrap;
+  var operatorLogicApplies = in_array(this._flags.last_token.text, positionable_operators) ||
+    in_array(current_token.text, positionable_operators);
+
+  if (operatorLogicApplies) {
+    var shouldPrintOperatorNewline = (
+        in_array(this._flags.last_token.text, positionable_operators) &&
+        in_array(this._options.operator_position, OPERATOR_POSITION_BEFORE_OR_PRESERVE)
+      ) ||
+      in_array(current_token.text, positionable_operators);
+    shouldPreserveOrForce = shouldPreserveOrForce && shouldPrintOperatorNewline;
+  }
+
+  if (shouldPreserveOrForce) {
+    this.print_newline(false, true);
+  } else if (this._options.wrap_line_length) {
+    if (reserved_array(this._flags.last_token, newline_restricted_tokens)) {
+      // These tokens should never have a newline inserted
+      // between them and the following expression.
+      return;
+    }
+    this._output.set_wrap_point();
+  }
+};
+
+Beautifier.prototype.print_newline = function(force_newline, preserve_statement_flags) {
+  if (!preserve_statement_flags) {
+    if (this._flags.last_token.text !== ';' && this._flags.last_token.text !== ',' && this._flags.last_token.text !== '=' && (this._flags.last_token.type !== TOKEN.OPERATOR || this._flags.last_token.text === '--' || this._flags.last_token.text === '++')) {
+      var next_token = this._tokens.peek();
+      while (this._flags.mode === MODE.Statement &&
+        !(this._flags.if_block && reserved_word(next_token, 'else')) &&
+        !this._flags.do_block) {
+        this.restore_mode();
+      }
+    }
+  }
+
+  if (this._output.add_new_line(force_newline)) {
+    this._flags.multiline_frame = true;
+  }
+};
+
+Beautifier.prototype.print_token_line_indentation = function(current_token) {
+  if (this._output.just_added_newline()) {
+    if (this._options.keep_array_indentation &&
+      current_token.newlines &&
+      (current_token.text === '[' || is_array(this._flags.mode))) {
+      this._output.current_line.set_indent(-1);
+      this._output.current_line.push(current_token.whitespace_before);
+      this._output.space_before_token = false;
+    } else if (this._output.set_indent(this._flags.indentation_level, this._flags.alignment)) {
+      this._flags.line_indent_level = this._flags.indentation_level;
+    }
+  }
+};
+
+Beautifier.prototype.print_token = function(current_token) {
+  if (this._output.raw) {
+    this._output.add_raw_token(current_token);
+    return;
+  }
+
+  if (this._options.comma_first && current_token.previous && current_token.previous.type === TOKEN.COMMA &&
+    this._output.just_added_newline()) {
+    if (this._output.previous_line.last() === ',') {
+      var popped = this._output.previous_line.pop();
+      // if the comma was already at the start of the line,
+      // pull back onto that line and reprint the indentation
+      if (this._output.previous_line.is_empty()) {
+        this._output.previous_line.push(popped);
+        this._output.trim(true);
+        this._output.current_line.pop();
+        this._output.trim();
+      }
+
+      // add the comma in front of the next token
+      this.print_token_line_indentation(current_token);
+      this._output.add_token(',');
+      this._output.space_before_token = true;
+    }
+  }
+
+  this.print_token_line_indentation(current_token);
+  this._output.non_breaking_space = true;
+  this._output.add_token(current_token.text);
+  if (this._output.previous_token_wrapped) {
+    this._flags.multiline_frame = true;
+  }
+};
+
+Beautifier.prototype.indent = function() {
+  this._flags.indentation_level += 1;
+  this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+};
+
+Beautifier.prototype.deindent = function() {
+  if (this._flags.indentation_level > 0 &&
+    ((!this._flags.parent) || this._flags.indentation_level > this._flags.parent.indentation_level)) {
+    this._flags.indentation_level -= 1;
+    this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+  }
+};
+
+Beautifier.prototype.set_mode = function(mode) {
+  if (this._flags) {
+    this._flag_store.push(this._flags);
+    this._previous_flags = this._flags;
+  } else {
+    this._previous_flags = this.create_flags(null, mode);
+  }
+
+  this._flags = this.create_flags(this._previous_flags, mode);
+  this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+};
+
+
+Beautifier.prototype.restore_mode = function() {
+  if (this._flag_store.length > 0) {
+    this._previous_flags = this._flags;
+    this._flags = this._flag_store.pop();
+    if (this._previous_flags.mode === MODE.Statement) {
+      remove_redundant_indentation(this._output, this._previous_flags);
+    }
+    this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+  }
+};
+
+Beautifier.prototype.start_of_object_property = function() {
+  return this._flags.parent.mode === MODE.ObjectLiteral && this._flags.mode === MODE.Statement && (
+    (this._flags.last_token.text === ':' && this._flags.ternary_depth === 0) || (reserved_array(this._flags.last_token, ['get', 'set'])));
+};
+
+Beautifier.prototype.start_of_statement = function(current_token) {
+  var start = false;
+  start = start || reserved_array(this._flags.last_token, ['var', 'let', 'const']) && current_token.type === TOKEN.WORD;
+  start = start || reserved_word(this._flags.last_token, 'do');
+  start = start || (!(this._flags.parent.mode === MODE.ObjectLiteral && this._flags.mode === MODE.Statement)) && reserved_array(this._flags.last_token, newline_restricted_tokens) && !current_token.newlines;
+  start = start || reserved_word(this._flags.last_token, 'else') &&
+    !(reserved_word(current_token, 'if') && !current_token.comments_before);
+  start = start || (this._flags.last_token.type === TOKEN.END_EXPR && (this._previous_flags.mode === MODE.ForInitializer || this._previous_flags.mode === MODE.Conditional));
+  start = start || (this._flags.last_token.type === TOKEN.WORD && this._flags.mode === MODE.BlockStatement &&
+    !this._flags.in_case &&
+    !(current_token.text === '--' || current_token.text === '++') &&
+    this._last_last_text !== 'function' &&
+    current_token.type !== TOKEN.WORD && current_token.type !== TOKEN.RESERVED);
+  start = start || (this._flags.mode === MODE.ObjectLiteral && (
+    (this._flags.last_token.text === ':' && this._flags.ternary_depth === 0) || reserved_array(this._flags.last_token, ['get', 'set'])));
+
+  if (start) {
+    this.set_mode(MODE.Statement);
+    this.indent();
+
+    this.handle_whitespace_and_comments(current_token, true);
+
+    // Issue #276:
+    // If starting a new statement with [if, for, while, do], push to a new line.
+    // if (a) if (b) if(c) d(); else e(); else f();
+    if (!this.start_of_object_property()) {
+      this.allow_wrap_or_preserved_newline(current_token,
+        reserved_array(current_token, ['do', 'for', 'if', 'while']));
+    }
+    return true;
+  }
+  return false;
+};
+
+Beautifier.prototype.handle_start_expr = function(current_token) {
+  // The conditional starts the statement if appropriate.
+  if (!this.start_of_statement(current_token)) {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  var next_mode = MODE.Expression;
+  if (current_token.text === '[') {
+
+    if (this._flags.last_token.type === TOKEN.WORD || this._flags.last_token.text === ')') {
+      // this is array index specifier, break immediately
+      // a[x], fn()[x]
+      if (reserved_array(this._flags.last_token, line_starters)) {
+        this._output.space_before_token = true;
+      }
+      this.print_token(current_token);
+      this.set_mode(next_mode);
+      this.indent();
+      if (this._options.space_in_paren) {
+        this._output.space_before_token = true;
+      }
+      return;
+    }
+
+    next_mode = MODE.ArrayLiteral;
+    if (is_array(this._flags.mode)) {
+      if (this._flags.last_token.text === '[' ||
+        (this._flags.last_token.text === ',' && (this._last_last_text === ']' || this._last_last_text === '}'))) {
+        // ], [ goes to new line
+        // }, [ goes to new line
+        if (!this._options.keep_array_indentation) {
+          this.print_newline();
+        }
+      }
+    }
+
+    if (!in_array(this._flags.last_token.type, [TOKEN.START_EXPR, TOKEN.END_EXPR, TOKEN.WORD, TOKEN.OPERATOR, TOKEN.DOT])) {
+      this._output.space_before_token = true;
+    }
+  } else {
+    if (this._flags.last_token.type === TOKEN.RESERVED) {
+      if (this._flags.last_token.text === 'for') {
+        this._output.space_before_token = this._options.space_before_conditional;
+        next_mode = MODE.ForInitializer;
+      } else if (in_array(this._flags.last_token.text, ['if', 'while', 'switch'])) {
+        this._output.space_before_token = this._options.space_before_conditional;
+        next_mode = MODE.Conditional;
+      } else if (in_array(this._flags.last_word, ['await', 'async'])) {
+        // Should be a space between await and an IIFE, or async and an arrow function
+        this._output.space_before_token = true;
+      } else if (this._flags.last_token.text === 'import' && current_token.whitespace_before === '') {
+        this._output.space_before_token = false;
+      } else if (in_array(this._flags.last_token.text, line_starters) || this._flags.last_token.text === 'catch') {
+        this._output.space_before_token = true;
+      }
+    } else if (this._flags.last_token.type === TOKEN.EQUALS || this._flags.last_token.type === TOKEN.OPERATOR) {
+      // Support of this kind of newline preservation.
+      // a = (b &&
+      //     (c || d));
+      if (!this.start_of_object_property()) {
+        this.allow_wrap_or_preserved_newline(current_token);
+      }
+    } else if (this._flags.last_token.type === TOKEN.WORD) {
+      this._output.space_before_token = false;
+
+      // function name() vs function name ()
+      // function* name() vs function* name ()
+      // async name() vs async name ()
+      // In ES6, you can also define the method properties of an object
+      // var obj = {a: function() {}}
+      // It can be abbreviated
+      // var obj = {a() {}}
+      // var obj = { a() {}} vs var obj = { a () {}}
+      // var obj = { * a() {}} vs var obj = { * a () {}}
+      var peek_back_two = this._tokens.peek(-3);
+      if (this._options.space_after_named_function && peek_back_two) {
+        // peek starts at next character so -1 is current token
+        var peek_back_three = this._tokens.peek(-4);
+        if (reserved_array(peek_back_two, ['async', 'function']) ||
+          (peek_back_two.text === '*' && reserved_array(peek_back_three, ['async', 'function']))) {
+          this._output.space_before_token = true;
+        } else if (this._flags.mode === MODE.ObjectLiteral) {
+          if ((peek_back_two.text === '{' || peek_back_two.text === ',') ||
+            (peek_back_two.text === '*' && (peek_back_three.text === '{' || peek_back_three.text === ','))) {
+            this._output.space_before_token = true;
+          }
+        }
+      }
+    } else {
+      // Support preserving wrapped arrow function expressions
+      // a.b('c',
+      //     () => d.e
+      // )
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+
+    // function() vs function ()
+    // yield*() vs yield* ()
+    // function*() vs function* ()
+    if ((this._flags.last_token.type === TOKEN.RESERVED && (this._flags.last_word === 'function' || this._flags.last_word === 'typeof')) ||
+      (this._flags.last_token.text === '*' &&
+        (in_array(this._last_last_text, ['function', 'yield']) ||
+          (this._flags.mode === MODE.ObjectLiteral && in_array(this._last_last_text, ['{', ',']))))) {
+      this._output.space_before_token = this._options.space_after_anon_function;
+    }
+  }
+
+  if (this._flags.last_token.text === ';' || this._flags.last_token.type === TOKEN.START_BLOCK) {
+    this.print_newline();
+  } else if (this._flags.last_token.type === TOKEN.END_EXPR || this._flags.last_token.type === TOKEN.START_EXPR || this._flags.last_token.type === TOKEN.END_BLOCK || this._flags.last_token.text === '.' || this._flags.last_token.type === TOKEN.COMMA) {
+    // do nothing on (( and )( and ][ and ]( and .(
+    // TODO: Consider whether forcing this is required.  Review failing tests when removed.
+    this.allow_wrap_or_preserved_newline(current_token, current_token.newlines);
+  }
+
+  this.print_token(current_token);
+  this.set_mode(next_mode);
+  if (this._options.space_in_paren) {
+    this._output.space_before_token = true;
+  }
+
+  // In all cases, if we newline while inside an expression it should be indented.
+  this.indent();
+};
+
+Beautifier.prototype.handle_end_expr = function(current_token) {
+  // statements inside expressions are not valid syntax, but...
+  // statements must all be closed when their container closes
+  while (this._flags.mode === MODE.Statement) {
+    this.restore_mode();
+  }
+
+  this.handle_whitespace_and_comments(current_token);
+
+  if (this._flags.multiline_frame) {
+    this.allow_wrap_or_preserved_newline(current_token,
+      current_token.text === ']' && is_array(this._flags.mode) && !this._options.keep_array_indentation);
+  }
+
+  if (this._options.space_in_paren) {
+    if (this._flags.last_token.type === TOKEN.START_EXPR && !this._options.space_in_empty_paren) {
+      // () [] no inner space in empty parens like these, ever, ref #320
+      this._output.trim();
+      this._output.space_before_token = false;
+    } else {
+      this._output.space_before_token = true;
+    }
+  }
+  this.deindent();
+  this.print_token(current_token);
+  this.restore_mode();
+
+  remove_redundant_indentation(this._output, this._previous_flags);
+
+  // do {} while () // no statement required after
+  if (this._flags.do_while && this._previous_flags.mode === MODE.Conditional) {
+    this._previous_flags.mode = MODE.Expression;
+    this._flags.do_block = false;
+    this._flags.do_while = false;
+
+  }
+};
+
+Beautifier.prototype.handle_start_block = function(current_token) {
+  this.handle_whitespace_and_comments(current_token);
+
+  // Check if this is should be treated as a ObjectLiteral
+  var next_token = this._tokens.peek();
+  var second_token = this._tokens.peek(1);
+  if (this._flags.last_word === 'switch' && this._flags.last_token.type === TOKEN.END_EXPR) {
+    this.set_mode(MODE.BlockStatement);
+    this._flags.in_case_statement = true;
+  } else if (this._flags.case_body) {
+    this.set_mode(MODE.BlockStatement);
+  } else if (second_token && (
+      (in_array(second_token.text, [':', ',']) && in_array(next_token.type, [TOKEN.STRING, TOKEN.WORD, TOKEN.RESERVED])) ||
+      (in_array(next_token.text, ['get', 'set', '...']) && in_array(second_token.type, [TOKEN.WORD, TOKEN.RESERVED]))
+    )) {
+    // We don't support TypeScript,but we didn't break it for a very long time.
+    // We'll try to keep not breaking it.
+    if (!in_array(this._last_last_text, ['class', 'interface'])) {
+      this.set_mode(MODE.ObjectLiteral);
+    } else {
+      this.set_mode(MODE.BlockStatement);
+    }
+  } else if (this._flags.last_token.type === TOKEN.OPERATOR && this._flags.last_token.text === '=>') {
+    // arrow function: (param1, paramN) => { statements }
+    this.set_mode(MODE.BlockStatement);
+  } else if (in_array(this._flags.last_token.type, [TOKEN.EQUALS, TOKEN.START_EXPR, TOKEN.COMMA, TOKEN.OPERATOR]) ||
+    reserved_array(this._flags.last_token, ['return', 'throw', 'import', 'default'])
+  ) {
+    // Detecting shorthand function syntax is difficult by scanning forward,
+    //     so check the surrounding context.
+    // If the block is being returned, imported, export default, passed as arg,
+    //     assigned with = or assigned in a nested object, treat as an ObjectLiteral.
+    this.set_mode(MODE.ObjectLiteral);
+  } else {
+    this.set_mode(MODE.BlockStatement);
+  }
+
+  var empty_braces = !next_token.comments_before && next_token.text === '}';
+  var empty_anonymous_function = empty_braces && this._flags.last_word === 'function' &&
+    this._flags.last_token.type === TOKEN.END_EXPR;
+
+  if (this._options.brace_preserve_inline) // check for inline, set inline_frame if so
+  {
+    // search forward for a newline wanted inside this block
+    var index = 0;
+    var check_token = null;
+    this._flags.inline_frame = true;
+    do {
+      index += 1;
+      check_token = this._tokens.peek(index - 1);
+      if (check_token.newlines) {
+        this._flags.inline_frame = false;
+        break;
+      }
+    } while (check_token.type !== TOKEN.EOF &&
+      !(check_token.type === TOKEN.END_BLOCK && check_token.opened === current_token));
+  }
+
+  if ((this._options.brace_style === "expand" ||
+      (this._options.brace_style === "none" && current_token.newlines)) &&
+    !this._flags.inline_frame) {
+    if (this._flags.last_token.type !== TOKEN.OPERATOR &&
+      (empty_anonymous_function ||
+        this._flags.last_token.type === TOKEN.EQUALS ||
+        (reserved_array(this._flags.last_token, special_words) && this._flags.last_token.text !== 'else'))) {
+      this._output.space_before_token = true;
+    } else {
+      this.print_newline(false, true);
+    }
+  } else { // collapse || inline_frame
+    if (is_array(this._previous_flags.mode) && (this._flags.last_token.type === TOKEN.START_EXPR || this._flags.last_token.type === TOKEN.COMMA)) {
+      if (this._flags.last_token.type === TOKEN.COMMA || this._options.space_in_paren) {
+        this._output.space_before_token = true;
+      }
+
+      if (this._flags.last_token.type === TOKEN.COMMA || (this._flags.last_token.type === TOKEN.START_EXPR && this._flags.inline_frame)) {
+        this.allow_wrap_or_preserved_newline(current_token);
+        this._previous_flags.multiline_frame = this._previous_flags.multiline_frame || this._flags.multiline_frame;
+        this._flags.multiline_frame = false;
+      }
+    }
+    if (this._flags.last_token.type !== TOKEN.OPERATOR && this._flags.last_token.type !== TOKEN.START_EXPR) {
+      if (this._flags.last_token.type === TOKEN.START_BLOCK && !this._flags.inline_frame) {
+        this.print_newline();
+      } else {
+        this._output.space_before_token = true;
+      }
+    }
+  }
+  this.print_token(current_token);
+  this.indent();
+
+  // Except for specific cases, open braces are followed by a new line.
+  if (!empty_braces && !(this._options.brace_preserve_inline && this._flags.inline_frame)) {
+    this.print_newline();
+  }
+};
+
+Beautifier.prototype.handle_end_block = function(current_token) {
+  // statements must all be closed when their container closes
+  this.handle_whitespace_and_comments(current_token);
+
+  while (this._flags.mode === MODE.Statement) {
+    this.restore_mode();
+  }
+
+  var empty_braces = this._flags.last_token.type === TOKEN.START_BLOCK;
+
+  if (this._flags.inline_frame && !empty_braces) { // try inline_frame (only set if this._options.braces-preserve-inline) first
+    this._output.space_before_token = true;
+  } else if (this._options.brace_style === "expand") {
+    if (!empty_braces) {
+      this.print_newline();
+    }
+  } else {
+    // skip {}
+    if (!empty_braces) {
+      if (is_array(this._flags.mode) && this._options.keep_array_indentation) {
+        // we REALLY need a newline here, but newliner would skip that
+        this._options.keep_array_indentation = false;
+        this.print_newline();
+        this._options.keep_array_indentation = true;
+
+      } else {
+        this.print_newline();
+      }
+    }
+  }
+  this.restore_mode();
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_word = function(current_token) {
+  if (current_token.type === TOKEN.RESERVED) {
+    if (in_array(current_token.text, ['set', 'get']) && this._flags.mode !== MODE.ObjectLiteral) {
+      current_token.type = TOKEN.WORD;
+    } else if (current_token.text === 'import' && this._tokens.peek().text === '(') {
+      current_token.type = TOKEN.WORD;
+    } else if (in_array(current_token.text, ['as', 'from']) && !this._flags.import_block) {
+      current_token.type = TOKEN.WORD;
+    } else if (this._flags.mode === MODE.ObjectLiteral) {
+      var next_token = this._tokens.peek();
+      if (next_token.text === ':') {
+        current_token.type = TOKEN.WORD;
+      }
+    }
+  }
+
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+    if (reserved_array(this._flags.last_token, ['var', 'let', 'const']) && current_token.type === TOKEN.WORD) {
+      this._flags.declaration_statement = true;
+    }
+  } else if (current_token.newlines && !is_expression(this._flags.mode) &&
+    (this._flags.last_token.type !== TOKEN.OPERATOR || (this._flags.last_token.text === '--' || this._flags.last_token.text === '++')) &&
+    this._flags.last_token.type !== TOKEN.EQUALS &&
+    (this._options.preserve_newlines || !reserved_array(this._flags.last_token, ['var', 'let', 'const', 'set', 'get']))) {
+    this.handle_whitespace_and_comments(current_token);
+    this.print_newline();
+  } else {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  if (this._flags.do_block && !this._flags.do_while) {
+    if (reserved_word(current_token, 'while')) {
+      // do {} ## while ()
+      this._output.space_before_token = true;
+      this.print_token(current_token);
+      this._output.space_before_token = true;
+      this._flags.do_while = true;
+      return;
+    } else {
+      // do {} should always have while as the next word.
+      // if we don't see the expected while, recover
+      this.print_newline();
+      this._flags.do_block = false;
+    }
+  }
+
+  // if may be followed by else, or not
+  // Bare/inline ifs are tricky
+  // Need to unwind the modes correctly: if (a) if (b) c(); else d(); else e();
+  if (this._flags.if_block) {
+    if (!this._flags.else_block && reserved_word(current_token, 'else')) {
+      this._flags.else_block = true;
+    } else {
+      while (this._flags.mode === MODE.Statement) {
+        this.restore_mode();
+      }
+      this._flags.if_block = false;
+      this._flags.else_block = false;
+    }
+  }
+
+  if (this._flags.in_case_statement && reserved_array(current_token, ['case', 'default'])) {
+    this.print_newline();
+    if (this._flags.last_token.type !== TOKEN.END_BLOCK && (this._flags.case_body || this._options.jslint_happy)) {
+      // switch cases following one another
+      this.deindent();
+    }
+    this._flags.case_body = false;
+
+    this.print_token(current_token);
+    this._flags.in_case = true;
+    return;
+  }
+
+  if (this._flags.last_token.type === TOKEN.COMMA || this._flags.last_token.type === TOKEN.START_EXPR || this._flags.last_token.type === TOKEN.EQUALS || this._flags.last_token.type === TOKEN.OPERATOR) {
+    if (!this.start_of_object_property()) {
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+  }
+
+  if (reserved_word(current_token, 'function')) {
+    if (in_array(this._flags.last_token.text, ['}', ';']) ||
+      (this._output.just_added_newline() && !(in_array(this._flags.last_token.text, ['(', '[', '{', ':', '=', ',']) || this._flags.last_token.type === TOKEN.OPERATOR))) {
+      // make sure there is a nice clean space of at least one blank line
+      // before a new function definition
+      if (!this._output.just_added_blankline() && !current_token.comments_before) {
+        this.print_newline();
+        this.print_newline(true);
+      }
+    }
+    if (this._flags.last_token.type === TOKEN.RESERVED || this._flags.last_token.type === TOKEN.WORD) {
+      if (reserved_array(this._flags.last_token, ['get', 'set', 'new', 'export']) ||
+        reserved_array(this._flags.last_token, newline_restricted_tokens)) {
+        this._output.space_before_token = true;
+      } else if (reserved_word(this._flags.last_token, 'default') && this._last_last_text === 'export') {
+        this._output.space_before_token = true;
+      } else if (this._flags.last_token.text === 'declare') {
+        // accomodates Typescript declare function formatting
+        this._output.space_before_token = true;
+      } else {
+        this.print_newline();
+      }
+    } else if (this._flags.last_token.type === TOKEN.OPERATOR || this._flags.last_token.text === '=') {
+      // foo = function
+      this._output.space_before_token = true;
+    } else if (!this._flags.multiline_frame && (is_expression(this._flags.mode) || is_array(this._flags.mode))) {
+      // (function
+    } else {
+      this.print_newline();
+    }
+
+    this.print_token(current_token);
+    this._flags.last_word = current_token.text;
+    return;
+  }
+
+  var prefix = 'NONE';
+
+  if (this._flags.last_token.type === TOKEN.END_BLOCK) {
+
+    if (this._previous_flags.inline_frame) {
+      prefix = 'SPACE';
+    } else if (!reserved_array(current_token, ['else', 'catch', 'finally', 'from'])) {
+      prefix = 'NEWLINE';
+    } else {
+      if (this._options.brace_style === "expand" ||
+        this._options.brace_style === "end-expand" ||
+        (this._options.brace_style === "none" && current_token.newlines)) {
+        prefix = 'NEWLINE';
+      } else {
+        prefix = 'SPACE';
+        this._output.space_before_token = true;
+      }
+    }
+  } else if (this._flags.last_token.type === TOKEN.SEMICOLON && this._flags.mode === MODE.BlockStatement) {
+    // TODO: Should this be for STATEMENT as well?
+    prefix = 'NEWLINE';
+  } else if (this._flags.last_token.type === TOKEN.SEMICOLON && is_expression(this._flags.mode)) {
+    prefix = 'SPACE';
+  } else if (this._flags.last_token.type === TOKEN.STRING) {
+    prefix = 'NEWLINE';
+  } else if (this._flags.last_token.type === TOKEN.RESERVED || this._flags.last_token.type === TOKEN.WORD ||
+    (this._flags.last_token.text === '*' &&
+      (in_array(this._last_last_text, ['function', 'yield']) ||
+        (this._flags.mode === MODE.ObjectLiteral && in_array(this._last_last_text, ['{', ',']))))) {
+    prefix = 'SPACE';
+  } else if (this._flags.last_token.type === TOKEN.START_BLOCK) {
+    if (this._flags.inline_frame) {
+      prefix = 'SPACE';
+    } else {
+      prefix = 'NEWLINE';
+    }
+  } else if (this._flags.last_token.type === TOKEN.END_EXPR) {
+    this._output.space_before_token = true;
+    prefix = 'NEWLINE';
+  }
+
+  if (reserved_array(current_token, line_starters) && this._flags.last_token.text !== ')') {
+    if (this._flags.inline_frame || this._flags.last_token.text === 'else' || this._flags.last_token.text === 'export') {
+      prefix = 'SPACE';
+    } else {
+      prefix = 'NEWLINE';
+    }
+
+  }
+
+  if (reserved_array(current_token, ['else', 'catch', 'finally'])) {
+    if ((!(this._flags.last_token.type === TOKEN.END_BLOCK && this._previous_flags.mode === MODE.BlockStatement) ||
+        this._options.brace_style === "expand" ||
+        this._options.brace_style === "end-expand" ||
+        (this._options.brace_style === "none" && current_token.newlines)) &&
+      !this._flags.inline_frame) {
+      this.print_newline();
+    } else {
+      this._output.trim(true);
+      var line = this._output.current_line;
+      // If we trimmed and there's something other than a close block before us
+      // put a newline back in.  Handles '} // comment' scenario.
+      if (line.last() !== '}') {
+        this.print_newline();
+      }
+      this._output.space_before_token = true;
+    }
+  } else if (prefix === 'NEWLINE') {
+    if (reserved_array(this._flags.last_token, special_words)) {
+      // no newline between 'return nnn'
+      this._output.space_before_token = true;
+    } else if (this._flags.last_token.text === 'declare' && reserved_array(current_token, ['var', 'let', 'const'])) {
+      // accomodates Typescript declare formatting
+      this._output.space_before_token = true;
+    } else if (this._flags.last_token.type !== TOKEN.END_EXPR) {
+      if ((this._flags.last_token.type !== TOKEN.START_EXPR || !reserved_array(current_token, ['var', 'let', 'const'])) && this._flags.last_token.text !== ':') {
+        // no need to force newline on 'var': for (var x = 0...)
+        if (reserved_word(current_token, 'if') && reserved_word(current_token.previous, 'else')) {
+          // no newline for } else if {
+          this._output.space_before_token = true;
+        } else {
+          this.print_newline();
+        }
+      }
+    } else if (reserved_array(current_token, line_starters) && this._flags.last_token.text !== ')') {
+      this.print_newline();
+    }
+  } else if (this._flags.multiline_frame && is_array(this._flags.mode) && this._flags.last_token.text === ',' && this._last_last_text === '}') {
+    this.print_newline(); // }, in lists get a newline treatment
+  } else if (prefix === 'SPACE') {
+    this._output.space_before_token = true;
+  }
+  if (current_token.previous && (current_token.previous.type === TOKEN.WORD || current_token.previous.type === TOKEN.RESERVED)) {
+    this._output.space_before_token = true;
+  }
+  this.print_token(current_token);
+  this._flags.last_word = current_token.text;
+
+  if (current_token.type === TOKEN.RESERVED) {
+    if (current_token.text === 'do') {
+      this._flags.do_block = true;
+    } else if (current_token.text === 'if') {
+      this._flags.if_block = true;
+    } else if (current_token.text === 'import') {
+      this._flags.import_block = true;
+    } else if (this._flags.import_block && reserved_word(current_token, 'from')) {
+      this._flags.import_block = false;
+    }
+  }
+};
+
+Beautifier.prototype.handle_semicolon = function(current_token) {
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+    // Semicolon can be the start (and end) of a statement
+    this._output.space_before_token = false;
+  } else {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  var next_token = this._tokens.peek();
+  while (this._flags.mode === MODE.Statement &&
+    !(this._flags.if_block && reserved_word(next_token, 'else')) &&
+    !this._flags.do_block) {
+    this.restore_mode();
+  }
+
+  // hacky but effective for the moment
+  if (this._flags.import_block) {
+    this._flags.import_block = false;
+  }
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_string = function(current_token) {
+  if (current_token.text.startsWith("`") && current_token.newlines === 0 && current_token.whitespace_before === '' && (current_token.previous.text === ')' || this._flags.last_token.type === TOKEN.WORD)) {
+    //Conditional for detectign backtick strings
+  } else if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+    // One difference - strings want at least a space before
+    this._output.space_before_token = true;
+  } else {
+    this.handle_whitespace_and_comments(current_token);
+    if (this._flags.last_token.type === TOKEN.RESERVED || this._flags.last_token.type === TOKEN.WORD || this._flags.inline_frame) {
+      this._output.space_before_token = true;
+    } else if (this._flags.last_token.type === TOKEN.COMMA || this._flags.last_token.type === TOKEN.START_EXPR || this._flags.last_token.type === TOKEN.EQUALS || this._flags.last_token.type === TOKEN.OPERATOR) {
+      if (!this.start_of_object_property()) {
+        this.allow_wrap_or_preserved_newline(current_token);
+      }
+    } else if ((current_token.text.startsWith("`") && this._flags.last_token.type === TOKEN.END_EXPR && (current_token.previous.text === ']' || current_token.previous.text === ')') && current_token.newlines === 0)) {
+      this._output.space_before_token = true;
+    } else {
+      this.print_newline();
+    }
+  }
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_equals = function(current_token) {
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+  } else {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  if (this._flags.declaration_statement) {
+    // just got an '=' in a var-line, different formatting/line-breaking, etc will now be done
+    this._flags.declaration_assignment = true;
+  }
+  this._output.space_before_token = true;
+  this.print_token(current_token);
+  this._output.space_before_token = true;
+};
+
+Beautifier.prototype.handle_comma = function(current_token) {
+  this.handle_whitespace_and_comments(current_token, true);
+
+  this.print_token(current_token);
+  this._output.space_before_token = true;
+  if (this._flags.declaration_statement) {
+    if (is_expression(this._flags.parent.mode)) {
+      // do not break on comma, for(var a = 1, b = 2)
+      this._flags.declaration_assignment = false;
+    }
+
+    if (this._flags.declaration_assignment) {
+      this._flags.declaration_assignment = false;
+      this.print_newline(false, true);
+    } else if (this._options.comma_first) {
+      // for comma-first, we want to allow a newline before the comma
+      // to turn into a newline after the comma, which we will fixup later
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+  } else if (this._flags.mode === MODE.ObjectLiteral ||
+    (this._flags.mode === MODE.Statement && this._flags.parent.mode === MODE.ObjectLiteral)) {
+    if (this._flags.mode === MODE.Statement) {
+      this.restore_mode();
+    }
+
+    if (!this._flags.inline_frame) {
+      this.print_newline();
+    }
+  } else if (this._options.comma_first) {
+    // EXPR or DO_BLOCK
+    // for comma-first, we want to allow a newline before the comma
+    // to turn into a newline after the comma, which we will fixup later
+    this.allow_wrap_or_preserved_newline(current_token);
+  }
+};
+
+Beautifier.prototype.handle_operator = function(current_token) {
+  var isGeneratorAsterisk = current_token.text === '*' &&
+    (reserved_array(this._flags.last_token, ['function', 'yield']) ||
+      (in_array(this._flags.last_token.type, [TOKEN.START_BLOCK, TOKEN.COMMA, TOKEN.END_BLOCK, TOKEN.SEMICOLON]))
+    );
+  var isUnary = in_array(current_token.text, ['-', '+']) && (
+    in_array(this._flags.last_token.type, [TOKEN.START_BLOCK, TOKEN.START_EXPR, TOKEN.EQUALS, TOKEN.OPERATOR]) ||
+    in_array(this._flags.last_token.text, line_starters) ||
+    this._flags.last_token.text === ','
+  );
+
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+  } else {
+    var preserve_statement_flags = !isGeneratorAsterisk;
+    this.handle_whitespace_and_comments(current_token, preserve_statement_flags);
+  }
+
+  if (reserved_array(this._flags.last_token, special_words)) {
+    // "return" had a special handling in TK_WORD. Now we need to return the favor
+    this._output.space_before_token = true;
+    this.print_token(current_token);
+    return;
+  }
+
+  // hack for actionscript's import .*;
+  if (current_token.text === '*' && this._flags.last_token.type === TOKEN.DOT) {
+    this.print_token(current_token);
+    return;
+  }
+
+  if (current_token.text === '::') {
+    // no spaces around exotic namespacing syntax operator
+    this.print_token(current_token);
+    return;
+  }
+
+  // Allow line wrapping between operators when operator_position is
+  //   set to before or preserve
+  if (this._flags.last_token.type === TOKEN.OPERATOR && in_array(this._options.operator_position, OPERATOR_POSITION_BEFORE_OR_PRESERVE)) {
+    this.allow_wrap_or_preserved_newline(current_token);
+  }
+
+  if (current_token.text === ':' && this._flags.in_case) {
+    this.print_token(current_token);
+
+    this._flags.in_case = false;
+    this._flags.case_body = true;
+    if (this._tokens.peek().type !== TOKEN.START_BLOCK) {
+      this.indent();
+      this.print_newline();
+    } else {
+      this._output.space_before_token = true;
+    }
+    return;
+  }
+
+  var space_before = true;
+  var space_after = true;
+  var in_ternary = false;
+  if (current_token.text === ':') {
+    if (this._flags.ternary_depth === 0) {
+      // Colon is invalid javascript outside of ternary and object, but do our best to guess what was meant.
+      space_before = false;
+    } else {
+      this._flags.ternary_depth -= 1;
+      in_ternary = true;
+    }
+  } else if (current_token.text === '?') {
+    this._flags.ternary_depth += 1;
+  }
+
+  // let's handle the operator_position option prior to any conflicting logic
+  if (!isUnary && !isGeneratorAsterisk && this._options.preserve_newlines && in_array(current_token.text, positionable_operators)) {
+    var isColon = current_token.text === ':';
+    var isTernaryColon = (isColon && in_ternary);
+    var isOtherColon = (isColon && !in_ternary);
+
+    switch (this._options.operator_position) {
+      case OPERATOR_POSITION.before_newline:
+        // if the current token is : and it's not a ternary statement then we set space_before to false
+        this._output.space_before_token = !isOtherColon;
+
+        this.print_token(current_token);
+
+        if (!isColon || isTernaryColon) {
+          this.allow_wrap_or_preserved_newline(current_token);
+        }
+
+        this._output.space_before_token = true;
+        return;
+
+      case OPERATOR_POSITION.after_newline:
+        // if the current token is anything but colon, or (via deduction) it's a colon and in a ternary statement,
+        //   then print a newline.
+
+        this._output.space_before_token = true;
+
+        if (!isColon || isTernaryColon) {
+          if (this._tokens.peek().newlines) {
+            this.print_newline(false, true);
+          } else {
+            this.allow_wrap_or_preserved_newline(current_token);
+          }
+        } else {
+          this._output.space_before_token = false;
+        }
+
+        this.print_token(current_token);
+
+        this._output.space_before_token = true;
+        return;
+
+      case OPERATOR_POSITION.preserve_newline:
+        if (!isOtherColon) {
+          this.allow_wrap_or_preserved_newline(current_token);
+        }
+
+        // if we just added a newline, or the current token is : and it's not a ternary statement,
+        //   then we set space_before to false
+        space_before = !(this._output.just_added_newline() || isOtherColon);
+
+        this._output.space_before_token = space_before;
+        this.print_token(current_token);
+        this._output.space_before_token = true;
+        return;
+    }
+  }
+
+  if (isGeneratorAsterisk) {
+    this.allow_wrap_or_preserved_newline(current_token);
+    space_before = false;
+    var next_token = this._tokens.peek();
+    space_after = next_token && in_array(next_token.type, [TOKEN.WORD, TOKEN.RESERVED]);
+  } else if (current_token.text === '...') {
+    this.allow_wrap_or_preserved_newline(current_token);
+    space_before = this._flags.last_token.type === TOKEN.START_BLOCK;
+    space_after = false;
+  } else if (in_array(current_token.text, ['--', '++', '!', '~']) || isUnary) {
+    // unary operators (and binary +/- pretending to be unary) special cases
+    if (this._flags.last_token.type === TOKEN.COMMA || this._flags.last_token.type === TOKEN.START_EXPR) {
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+
+    space_before = false;
+    space_after = false;
+
+    // http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1
+    // if there is a newline between -- or ++ and anything else we should preserve it.
+    if (current_token.newlines && (current_token.text === '--' || current_token.text === '++')) {
+      this.print_newline(false, true);
+    }
+
+    if (this._flags.last_token.text === ';' && is_expression(this._flags.mode)) {
+      // for (;; ++i)
+      //        ^^^
+      space_before = true;
+    }
+
+    if (this._flags.last_token.type === TOKEN.RESERVED) {
+      space_before = true;
+    } else if (this._flags.last_token.type === TOKEN.END_EXPR) {
+      space_before = !(this._flags.last_token.text === ']' && (current_token.text === '--' || current_token.text === '++'));
+    } else if (this._flags.last_token.type === TOKEN.OPERATOR) {
+      // a++ + ++b;
+      // a - -b
+      space_before = in_array(current_token.text, ['--', '-', '++', '+']) && in_array(this._flags.last_token.text, ['--', '-', '++', '+']);
+      // + and - are not unary when preceeded by -- or ++ operator
+      // a-- + b
+      // a * +b
+      // a - -b
+      if (in_array(current_token.text, ['+', '-']) && in_array(this._flags.last_token.text, ['--', '++'])) {
+        space_after = true;
+      }
+    }
+
+
+    if (((this._flags.mode === MODE.BlockStatement && !this._flags.inline_frame) || this._flags.mode === MODE.Statement) &&
+      (this._flags.last_token.text === '{' || this._flags.last_token.text === ';')) {
+      // { foo; --i }
+      // foo(); --bar;
+      this.print_newline();
+    }
+  }
+
+  this._output.space_before_token = this._output.space_before_token || space_before;
+  this.print_token(current_token);
+  this._output.space_before_token = space_after;
+};
+
+Beautifier.prototype.handle_block_comment = function(current_token, preserve_statement_flags) {
+  if (this._output.raw) {
+    this._output.add_raw_token(current_token);
+    if (current_token.directives && current_token.directives.preserve === 'end') {
+      // If we're testing the raw output behavior, do not allow a directive to turn it off.
+      this._output.raw = this._options.test_output_raw;
+    }
+    return;
+  }
+
+  if (current_token.directives) {
+    this.print_newline(false, preserve_statement_flags);
+    this.print_token(current_token);
+    if (current_token.directives.preserve === 'start') {
+      this._output.raw = true;
+    }
+    this.print_newline(false, true);
+    return;
+  }
+
+  // inline block
+  if (!acorn.newline.test(current_token.text) && !current_token.newlines) {
+    this._output.space_before_token = true;
+    this.print_token(current_token);
+    this._output.space_before_token = true;
+    return;
+  } else {
+    this.print_block_commment(current_token, preserve_statement_flags);
+  }
+};
+
+Beautifier.prototype.print_block_commment = function(current_token, preserve_statement_flags) {
+  var lines = split_linebreaks(current_token.text);
+  var j; // iterator for this case
+  var javadoc = false;
+  var starless = false;
+  var lastIndent = current_token.whitespace_before;
+  var lastIndentLength = lastIndent.length;
+
+  // block comment starts with a new line
+  this.print_newline(false, preserve_statement_flags);
+
+  // first line always indented
+  this.print_token_line_indentation(current_token);
+  this._output.add_token(lines[0]);
+  this.print_newline(false, preserve_statement_flags);
+
+
+  if (lines.length > 1) {
+    lines = lines.slice(1);
+    javadoc = all_lines_start_with(lines, '*');
+    starless = each_line_matches_indent(lines, lastIndent);
+
+    if (javadoc) {
+      this._flags.alignment = 1;
+    }
+
+    for (j = 0; j < lines.length; j++) {
+      if (javadoc) {
+        // javadoc: reformat and re-indent
+        this.print_token_line_indentation(current_token);
+        this._output.add_token(ltrim(lines[j]));
+      } else if (starless && lines[j]) {
+        // starless: re-indent non-empty content, avoiding trim
+        this.print_token_line_indentation(current_token);
+        this._output.add_token(lines[j].substring(lastIndentLength));
+      } else {
+        // normal comments output raw
+        this._output.current_line.set_indent(-1);
+        this._output.add_token(lines[j]);
+      }
+
+      // for comments on their own line or  more than one line, make sure there's a new line after
+      this.print_newline(false, preserve_statement_flags);
+    }
+
+    this._flags.alignment = 0;
+  }
+};
+
+
+Beautifier.prototype.handle_comment = function(current_token, preserve_statement_flags) {
+  if (current_token.newlines) {
+    this.print_newline(false, preserve_statement_flags);
+  } else {
+    this._output.trim(true);
+  }
+
+  this._output.space_before_token = true;
+  this.print_token(current_token);
+  this.print_newline(false, preserve_statement_flags);
+};
+
+Beautifier.prototype.handle_dot = function(current_token) {
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+  } else {
+    this.handle_whitespace_and_comments(current_token, true);
+  }
+
+  if (reserved_array(this._flags.last_token, special_words)) {
+    this._output.space_before_token = false;
+  } else {
+    // allow preserved newlines before dots in general
+    // force newlines on dots after close paren when break_chained - for bar().baz()
+    this.allow_wrap_or_preserved_newline(current_token,
+      this._flags.last_token.text === ')' && this._options.break_chained_methods);
+  }
+
+  // Only unindent chained method dot if this dot starts a new line.
+  // Otherwise the automatic extra indentation removal will handle the over indent
+  if (this._options.unindent_chained_methods && this._output.just_added_newline()) {
+    this.deindent();
+  }
+
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_unknown = function(current_token, preserve_statement_flags) {
+  this.print_token(current_token);
+
+  if (current_token.text[current_token.text.length - 1] === '\n') {
+    this.print_newline(false, preserve_statement_flags);
+  }
+};
+
+Beautifier.prototype.handle_eof = function(current_token) {
+  // Unwind any open statements
+  while (this._flags.mode === MODE.Statement) {
+    this.restore_mode();
+  }
+  this.handle_whitespace_and_comments(current_token);
+};
+
+module.exports.Beautifier = Beautifier;