Prompt:
class PigmentsProvider
  constructor: (@pigments) ->
    CompositeDisposable ?= require('atom').CompositeDisposable

    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

    @subscriptions.add atom.config.observe 'pigments.autocompleteSuggestionsFromValue', (@autocompleteSuggestionsFromValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed

Response:
prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()

    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    if @autocompleteSuggestionsFromValue
      line.match(/^\s*([^\s].+)$/)?[1] or ''
    else
      variablesRegExp ?= require('./regexes').variables

      line.match(new RegExp("(#{variablesRegExp})$"))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->


Response:
return [] unless variables?

    _ ?= require 'underscore-plus'

    re = ///^#{_.escapeRegExp(prefix).replace(/,\s*/, '\\s*,\\s*')}///

    suggestions = []
    matchesColorValue = (v) ->
      res = re.test(v.value)
      res ||= v.color.suggestionValues.some((s) -> re.test(s)) if v.color?
      res

    matchedVariables = variables.filter (v) =>
      not v.isAlternate and re.test(v.name) or
      (@autocompleteSuggestionsFromValue and matchesColorValue(v))

    matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
return [] unless variables?

    _ ?= require 'underscore-plus'

    re = ///^#{_.escapeRegExp(prefix).replace(/,\s*/, '\\s*,\\s*')}///

    suggestions = []
    matchesColorValue = (v) ->
      res = re.test(v.value)
      res ||= v.color.suggestionValues.some((s) -> re.test(s)) if v.color?
      res

    matchedVariables = variables.filter (v) =>
      not v.isAlternate and re.test(v.name) or
      (@autocompleteSuggestionsFromValue and matchesColorValue(v))

    matchedVariables.forEach (v) =>
      if v.isColor

Response:
color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Response:
class PigmentsProvider
  constructor: (@pigments) ->
    CompositeDisposable ?= require('atom').CompositeDisposable

    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

    @subscriptions.add atom.config.observe 'pigments.autocompleteSuggestionsFromValue', (@autocompleteSuggestionsFromValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    variablesRegExp ?= require('./regexes').variables

    regexp = [variablesRegExp]

    regexp.push("#[a-fA-F0-9]+") if @autocompleteSuggestionsFromValue

    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp("(#{regexp.join('|')})$"))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->


Prompt:
class PigmentsProvider
  constructor: (@pigments) ->
    CompositeDisposable ?= require('atom').CompositeDisposable

    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

    @subscriptions.add atom.config.observe 'pigments.autocompleteSuggestionsFromValue', (@autocompleteSuggestionsFromValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed

Response:
prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    variablesRegExp ?= require('./regexes').variables

    regexp = [variablesRegExp]

    regexp.push("#[a-fA-F0-9]+") if @autocompleteSuggestionsFromValue

    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp("(#{regexp.join('|')})$"))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->


Response:
return [] unless variables?

    _ ?= require 'underscore-plus'

    suggestions = []

    matchedVariables = variables.filter (v) =>
      not v.isAlternate and
      ///^#{_.escapeRegExp prefix}///.test(v.name) or
      (@autocompleteSuggestionsFromValue and ///^#{_.escapeRegExp prefix}///.test("##{v.color?.hex}"))

    matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
return [] unless variables?

    _ ?= require 'underscore-plus'

    suggestions = []

    matchedVariables = variables.filter (v) =>
      not v.isAlternate and
      ///^#{_.escapeRegExp prefix}///.test(v.name) or
      (@autocompleteSuggestionsFromValue and ///^#{_.escapeRegExp prefix}///.test("##{v.color?.hex}"))

    matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

Response:
suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Response:
[
  CompositeDisposable, variablesRegExp, _
] = []

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    CompositeDisposable ?= require('atom').CompositeDisposable

    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    variablesRegExp ?= require('./regexes').variables

    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
[
  CompositeDisposable, variablesRegExp, _
] = []

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    CompositeDisposable ?= require('atom').CompositeDisposable

    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    variablesRegExp ?= require('./regexes').variables

    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?
```

Response:
var CompositeDisposable, PigmentsProvider, _, variablesRegExp;

[CompositeDisposable, variablesRegExp, _] = [];

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    if (CompositeDisposable == null) {
      CompositeDisposable = require('atom').CompositeDisposable;
    }
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToColorValue', (extendAutocompleteToColorValue) => {
      this.extendAutocompleteToColorValue = extendAutocompleteToColorValue;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    if (variablesRegExp == null) {
      variablesRegExp = require('./regexes').variables;
    }
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    if (variables == null) {
      return [];
    }
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var CompositeDisposable, PigmentsProvider, _, variablesRegExp;

[CompositeDisposable, variablesRegExp, _] = [];

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    if (CompositeDisposable == null) {
      CompositeDisposable = require('atom').CompositeDisposable;
    }
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToColorValue', (extendAutocompleteToColorValue) => {
      this.extendAutocompleteToColorValue = extendAutocompleteToColorValue;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    if (variablesRegExp == null) {
      variablesRegExp = require('./regexes').variables;
    }
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    if (variables == null) {
      return [];
    }
  }

};
```

Response:
[
  CompositeDisposable, variablesRegExp, _
] = []

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    CompositeDisposable ?= require('atom').CompositeDisposable

    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    variablesRegExp ?= require('./regexes').variables

    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?


Prompt:
[
  CompositeDisposable, variablesRegExp, _
] = []

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    CompositeDisposable ?= require('atom').CompositeDisposable

    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

Response:
getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    variablesRegExp ?= require('./regexes').variables

    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?


Response:
_ ?= require 'underscore-plus'

    suggestions = []

    matchedVariables = variables.filter (v) ->
      not v.isAlternate and ///^#{_.escapeRegExp prefix}///.test(v.name)

    matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
_ ?= require 'underscore-plus'

    suggestions = []

    matchedVariables = variables.filter (v) ->
      not v.isAlternate and ///^#{_.escapeRegExp prefix}///.test(v.name)

    matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {

Response:
text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Response:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) ->


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) ->
```

Response:
var CompositeDisposable, PigmentsProvider, Range, _, variablesRegExp;

_ = require('underscore-plus');

({CompositeDisposable, Range} = require('atom'));

({
  variables: variablesRegExp
} = require('./regexes'));

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToColorValue', (extendAutocompleteToColorValue) => {
      this.extendAutocompleteToColorValue = extendAutocompleteToColorValue;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    var matchedVariables, suggestions;
    if (variables == null) {
      return [];
    }
    suggestions = [];
    return matchedVariables = variables.filter(function(v) {});
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var CompositeDisposable, PigmentsProvider, Range, _, variablesRegExp;

_ = require('underscore-plus');

({CompositeDisposable, Range} = require('atom'));

({
  variables: variablesRegExp
} = require('./regexes'));

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToColorValue', (extendAutocompleteToColorValue) => {
      this.extendAutocompleteToColorValue = extendAutocompleteToColorValue;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    var matchedVariables, suggestions;
    if (variables == null) {
      return [];
    }
    suggestions = [];
    return matchedVariables = variables.filter(function(v) {});
  }

};
```

Response:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) ->


Prompt:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->

Response:
return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) ->


Response:
not v.isAlternate and ///^#{_.escapeRegExp prefix}///.test(v.name)

    matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
not v.isAlternate and ///^#{_.escapeRegExp prefix}///.test(v.name)

    matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML

Response:
replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Response:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name
```

Response:
var CompositeDisposable, PigmentsProvider, Range, _, variablesRegExp;

_ = require('underscore-plus');

({CompositeDisposable, Range} = require('atom'));

({
  variables: variablesRegExp
} = require('./regexes'));

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToColorValue', (extendAutocompleteToColorValue) => {
      this.extendAutocompleteToColorValue = extendAutocompleteToColorValue;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    var matchedVariables, suggestions;
    if (variables == null) {
      return [];
    }
    suggestions = [];
    return matchedVariables = variables.filter(function(v) {
      return RegExp(`^${_.escapeRegExp(prefix)}`).test(v.name);
    });
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var CompositeDisposable, PigmentsProvider, Range, _, variablesRegExp;

_ = require('underscore-plus');

({CompositeDisposable, Range} = require('atom'));

({
  variables: variablesRegExp
} = require('./regexes'));

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToColorValue', (extendAutocompleteToColorValue) => {
      this.extendAutocompleteToColorValue = extendAutocompleteToColorValue;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    var matchedVariables, suggestions;
    if (variables == null) {
      return [];
    }
    suggestions = [];
    return matchedVariables = variables.filter(function(v) {
      return RegExp(`^${_.escapeRegExp(prefix)}`).test(v.name);
    });
  }

};
```

Response:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name


Prompt:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToColorValue', (@extendAutocompleteToColorValue) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->

Response:
return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name


Response:
matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = "<span class='color-suggestion-preview' style='background: #{v.color.toCSS()}'></span>"
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions
```

Response:
matchedVariables.forEach((v) => {
  var color, rightLabelHTML;
  if (v.isColor) {
    color = v.color.alpha === 1 ? '#' + v.color.hex : v.color.toCSS();
    rightLabelHTML = `<span class='color-suggestion-preview' style='background: ${v.color.toCSS()}'></span>`;
    if (this.extendAutocompleteToColorValue) {
      rightLabelHTML = `${color} ${rightLabelHTML}`;
    }
    return suggestions.push({
      text: v.name,
      rightLabelHTML,
      replacementPrefix: prefix,
      className: 'color-suggestion'
    });
  } else {
    return suggestions.push({
      text: v.name,
      rightLabel: v.value,
      replacementPrefix: prefix,
      className: 'pigments-suggestion'
    });
  }
});

suggestions;


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
matchedVariables.forEach((v) => {
  var color, rightLabelHTML;
  if (v.isColor) {
    color = v.color.alpha === 1 ? '#' + v.color.hex : v.color.toCSS();
    rightLabelHTML = `<span class='color-suggestion-preview' style='background: ${v.color.toCSS()}'></span>`;
    if (this.extendAutocompleteToColorValue) {
      rightLabelHTML = `${color} ${rightLabelHTML}`;
    }
    return suggestions.push({
      text: v.name,
      rightLabelHTML,
      replacementPrefix: prefix,
      className: 'color-suggestion'
    });
  } else {
    return suggestions.push({
      text: v.name,
      rightLabel: v.value,
      replacementPrefix: prefix,
      className: 'pigments-suggestion'
    });
  }
});

suggestions;
```

Response:
matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
matchedVariables.forEach (v) =>
      if v.isColor
        color = if v.color.alpha == 1 then '#' + v.color.hex else v.color.toCSS();
        rightLabelHTML = ""
        rightLabelHTML = "#{color} #{rightLabelHTML}" if @extendAutocompleteToColorValue

        suggestions.push {
          text: v.name
          rightLabelHTML
          replacementPrefix: prefix

Response:
className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Response:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name
```

Response:
var CompositeDisposable, PigmentsProvider, Range, _, variablesRegExp;

_ = require('underscore-plus');

({CompositeDisposable, Range} = require('atom'));

({
  variables: variablesRegExp
} = require('./regexes'));

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    var matchedVariables, suggestions;
    if (variables == null) {
      return [];
    }
    suggestions = [];
    return matchedVariables = variables.filter(function(v) {
      return RegExp(`^${_.escapeRegExp(prefix)}`).test(v.name);
    });
  }

};


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var CompositeDisposable, PigmentsProvider, Range, _, variablesRegExp;

_ = require('underscore-plus');

({CompositeDisposable, Range} = require('atom'));

({
  variables: variablesRegExp
} = require('./regexes'));

module.exports = PigmentsProvider = class PigmentsProvider {
  constructor(pigments) {
    this.pigments = pigments;
    this.subscriptions = new CompositeDisposable();
    this.selector = atom.config.get('pigments.autocompleteScopes').join(',');
    this.subscriptions.add(atom.config.observe('pigments.autocompleteScopes', (scopes) => {
      return this.selector = scopes.join(',');
    }));
    this.subscriptions.add(atom.config.observe('pigments.extendAutocompleteToVariables', (extendAutocompleteToVariables) => {
      this.extendAutocompleteToVariables = extendAutocompleteToVariables;
    }));
  }

  dispose() {
    this.disposed = true;
    this.subscriptions.dispose();
    return this.pigments = null;
  }

  getProject() {
    if (this.disposed) {
      return;
    }
    return this.pigments.getProject();
  }

  getSuggestions({editor, bufferPosition}) {
    var prefix, project, suggestions, variables;
    if (this.disposed) {
      return;
    }
    prefix = this.getPrefix(editor, bufferPosition);
    project = this.getProject();
    if (!(prefix != null ? prefix.length : void 0)) {
      return;
    }
    if (project == null) {
      return;
    }
    if (this.extendAutocompleteToVariables) {
      variables = project.getVariables();
    } else {
      variables = project.getColorVariables();
    }
    suggestions = this.findSuggestionsForPrefix(variables, prefix);
    return suggestions;
  }

  getPrefix(editor, bufferPosition) {
    var line, ref;
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition]);
    return ((ref = line.match(new RegExp(variablesRegExp + '$'))) != null ? ref[0] : void 0) || '';
  }

  findSuggestionsForPrefix(variables, prefix) {
    var matchedVariables, suggestions;
    if (variables == null) {
      return [];
    }
    suggestions = [];
    return matchedVariables = variables.filter(function(v) {
      return RegExp(`^${_.escapeRegExp(prefix)}`).test(v.name);
    });
  }

};
```

Response:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name


Prompt:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>

  dispose: ->
    @disposed = true
    @subscriptions.dispose()
    @pigments = null

  getProject: ->
    return if @disposed
    @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->

Response:
return if @disposed
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name


Response:
matchedVariables.forEach (v) ->
      if v.isColor
        suggestions.push {
          text: v.name
          rightLabelHTML: ""
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
matchedVariables.forEach (v) ->
      if v.isColor
        suggestions.push {
          text: v.name
          rightLabelHTML: "<span class='color-suggestion-preview' style='background: #{v.color.toCSS()}'></span>"
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions
```

Response:
matchedVariables.forEach(function(v) {
  if (v.isColor) {
    return suggestions.push({
      text: v.name,
      rightLabelHTML: `<span class='color-suggestion-preview' style='background: ${v.color.toCSS()}'></span>`,
      replacementPrefix: prefix,
      className: 'color-suggestion'
    });
  } else {
    return suggestions.push({
      text: v.name,
      rightLabel: v.value,
      replacementPrefix: prefix,
      className: 'pigments-suggestion'
    });
  }
});

suggestions;


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
matchedVariables.forEach(function(v) {
  if (v.isColor) {
    return suggestions.push({
      text: v.name,
      rightLabelHTML: `<span class='color-suggestion-preview' style='background: ${v.color.toCSS()}'></span>`,
      replacementPrefix: prefix,
      className: 'color-suggestion'
    });
  } else {
    return suggestions.push({
      text: v.name,
      rightLabel: v.value,
      replacementPrefix: prefix,
      className: 'pigments-suggestion'
    });
  }
});

suggestions;
```

Response:
matchedVariables.forEach (v) ->
      if v.isColor
        suggestions.push {
          text: v.name
          rightLabelHTML: ""
          replacementPrefix: prefix
          className: 'color-suggestion'
        }
      else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Prompt:
matchedVariables.forEach (v) ->
      if v.isColor
        suggestions.push {
          text: v.name
          rightLabelHTML: ""
          replacementPrefix: prefix
          className: 'color-suggestion'
        }

Response:
else
        suggestions.push {
          text: v.name
          rightLabel: v.value
          replacementPrefix: prefix
          className: 'pigments-suggestion'
        }

    suggestions


Response:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>

  dispose: ->
    @subscriptions.dispose()
    @pigments = null

  getProject: -> @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

    if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name

    matchedVariables.forEach (v) ->
      if v.isColor
        suggestions.push {
          text: v.name


Prompt:
_ = require 'underscore-plus'
{CompositeDisposable, Range}  = require 'atom'
{variables: variablesRegExp} = require './regexes'

module.exports =
class PigmentsProvider
  constructor: (@pigments) ->
    @subscriptions = new CompositeDisposable
    @selector = atom.config.get('pigments.autocompleteScopes').join(',')

    @subscriptions.add atom.config.observe 'pigments.autocompleteScopes', (scopes) =>
      @selector = scopes.join(',')
    @subscriptions.add atom.config.observe 'pigments.extendAutocompleteToVariables', (@extendAutocompleteToVariables) =>

  dispose: ->
    @subscriptions.dispose()
    @pigments = null

  getProject: -> @pigments.getProject()

  getSuggestions: ({editor, bufferPosition}) ->
    prefix = @getPrefix(editor, bufferPosition)
    project = @getProject()
    return unless prefix?.length
    return unless project?

Response:
if @extendAutocompleteToVariables
      variables = project.getVariables()
    else
      variables = project.getColorVariables()

    suggestions = @findSuggestionsForPrefix(variables, prefix)
    suggestions

  getPrefix: (editor, bufferPosition) ->
    line = editor.getTextInRange([[bufferPosition.row, 0], bufferPosition])

    line.match(new RegExp(variablesRegExp + '$'))?[0] or ''

  findSuggestionsForPrefix: (variables, prefix) ->
    return [] unless variables?

    suggestions = []

    matchedVariables = variables.filter (v) -> ///^#{_.escapeRegExp prefix}///.test v.name

    matchedVariables.forEach (v) ->
      if v.isColor
        suggestions.push {
          text: v.name


Response:
expect = chai.expect
assert = chai.assert

describe 'Selectors', ->
  engine = null
  before ->
    container = document.createElement('div')
    engine = new GSS(container)
    engine.compile()

  describe 'dispatched by argument types', ->
    it 'should create command instance for each operation', ->
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector.Selecter)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.input.Selector.Qualifier)

    it 'should have absolute and relative path set for each command', ->
      expect(engine.input.Command(['tag', 'div']).path).to.eql('div')
      expect(engine.input.Command(['tag', 'h1']).key).to.eql('h1')
      expect(engine.input.Command(['tag', ['&'], 'h1']).path).to.eql('&h1')

      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active')

      expect(engine.input.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em')

      expect(engine.input.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]')

    it 'should group commands by tags', ->
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button')
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(undefined)
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active')

    it 'should group elements in comma', ->
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(undefined)


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
expect = chai.expect
assert = chai.assert

describe 'Selectors', ->
  engine = null
  before ->
    container = document.createElement('div')
    engine = new GSS(container)
    engine.compile()

  describe 'dispatched by argument types', ->
    it 'should create command instance for each operation', ->
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector.Selecter)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.input.Selector.Qualifier)

    it 'should have absolute and relative path set for each command', ->
      expect(engine.input.Command(['tag', 'div']).path).to.eql('div')
      expect(engine.input.Command(['tag', 'h1']).key).to.eql('h1')
      expect(engine.input.Command(['tag', ['&'], 'h1']).path).to.eql('&h1')

      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active')

      expect(engine.input.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em')

      expect(engine.input.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]')

    it 'should group commands by tags', ->
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button')
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(undefined)
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active')

    it 'should group elements in comma', ->
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(undefined)
```

Response:
var assert, expect;

expect = chai.expect;

assert = chai.assert;

describe('Selectors', function() {
  var engine;
  engine = null;
  before(function() {
    var container;
    container = document.createElement('div');
    engine = new GSS(container);
    return engine.compile();
  });
  return describe('dispatched by argument types', function() {
    it('should create command instance for each operation', function() {
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector.Selecter);
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector);
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector);
      return expect(engine.input.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.input.Selector.Qualifier);
    });
    it('should have absolute and relative path set for each command', function() {
      expect(engine.input.Command(['tag', 'div']).path).to.eql('div');
      expect(engine.input.Command(['tag', 'h1']).key).to.eql('h1');
      expect(engine.input.Command(['tag', ['&'], 'h1']).path).to.eql('&h1');
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active');
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active');
      expect(engine.input.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em');
      return expect(engine.input.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]');
    });
    it('should group commands by tags', function() {
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button');
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button');
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active');
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active');
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active');
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(void 0);
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~');
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active');
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ');
      return expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active');
    });
    return it('should group elements in comma', function() {
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~');
      return expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(void 0);
    });
  });
});


Prompt:
Convert this JavaScript to CoffeeScript.
```javascript
var assert, expect;

expect = chai.expect;

assert = chai.assert;

describe('Selectors', function() {
  var engine;
  engine = null;
  before(function() {
    var container;
    container = document.createElement('div');
    engine = new GSS(container);
    return engine.compile();
  });
  return describe('dispatched by argument types', function() {
    it('should create command instance for each operation', function() {
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector.Selecter);
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector);
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector);
      return expect(engine.input.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.input.Selector.Qualifier);
    });
    it('should have absolute and relative path set for each command', function() {
      expect(engine.input.Command(['tag', 'div']).path).to.eql('div');
      expect(engine.input.Command(['tag', 'h1']).key).to.eql('h1');
      expect(engine.input.Command(['tag', ['&'], 'h1']).path).to.eql('&h1');
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active');
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active');
      expect(engine.input.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em');
      return expect(engine.input.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]');
    });
    it('should group commands by tags', function() {
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button');
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button');
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active');
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active');
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active');
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(void 0);
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~');
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active');
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ');
      return expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active');
    });
    return it('should group elements in comma', function() {
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p');
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~');
      return expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(void 0);
    });
  });
});
```

Response:
expect = chai.expect
assert = chai.assert

describe 'Selectors', ->
  engine = null
  before ->
    container = document.createElement('div')
    engine = new GSS(container)
    engine.compile()

  describe 'dispatched by argument types', ->
    it 'should create command instance for each operation', ->
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector.Selecter)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.input.Selector.Qualifier)

    it 'should have absolute and relative path set for each command', ->
      expect(engine.input.Command(['tag', 'div']).path).to.eql('div')
      expect(engine.input.Command(['tag', 'h1']).key).to.eql('h1')
      expect(engine.input.Command(['tag', ['&'], 'h1']).path).to.eql('&h1')

      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active')

      expect(engine.input.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em')

      expect(engine.input.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]')

    it 'should group commands by tags', ->
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button')
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(undefined)
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active')

    it 'should group elements in comma', ->
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(undefined)


Prompt:
expect = chai.expect
assert = chai.assert

describe 'Selectors', ->
  engine = null
  before ->
    container = document.createElement('div')
    engine = new GSS(container)
    engine.compile()

  describe 'dispatched by argument types', ->
    it 'should create command instance for each operation', ->
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector.Selecter)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', 'div'])).to.be.an.instanceof(engine.input.Selector)
      expect(engine.input.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.input.Selector.Qualifier)

    it 'should have absolute and relative path set for each command', ->
      expect(engine.input.Command(['tag', 'div']).path).to.eql('div')
      expect(engine.input.Command(['tag', 'h1']).key).to.eql('h1')
      expect(engine.input.Command(['tag', ['&'], 'h1']).path).to.eql('&h1')

      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active')

Response:
expect(engine.input.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em')

      expect(engine.input.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]')

    it 'should group commands by tags', ->
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button')
      expect(engine.input.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button')
      expect(engine.input.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active')
      expect(engine.input.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(undefined)
      expect(engine.input.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ')
      expect(engine.input.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active')

    it 'should group elements in comma', ->
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~')
      expect(engine.input.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(undefined)


Response:
{expect} = chai

describe 'Selectors', ->
  engine = null
  before ->
    container = document.createElement('div')
    engine = new GSS(container)
    engine.compile()

  describe 'dispatched by argument types', ->
    it 'should create command instance for each operation', ->
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector.Selecter)
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector)
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector)
      expect(engine.document.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.document.Selector.Qualifier)

    it 'should have absolute and relative path set for each command', ->
      expect(engine.document.Command(['tag', 'div']).path).to.eql('div')
      expect(engine.document.Command(['tag', 'h1']).key).to.eql('h1')
      expect(engine.document.Command(['tag', ['&'], 'h1']).path).to.eql('&h1')

      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active')
      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active')

      expect(engine.document.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em')

      expect(engine.document.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]')

    it 'should group commands by tags', ->
      expect(engine.document.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button')
      expect(engine.document.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button')
      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.document.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active')
      expect(engine.document.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.document.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(undefined)
      expect(engine.document.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~')
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active')
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ')
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active')

    it 'should group elements in comma', ->
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(undefined)


Prompt:
Convert this CoffeeScript to JavaScript.
```coffeescript
{expect} = chai

describe 'Selectors', ->
  engine = null
  before ->
    container = document.createElement('div')
    engine = new GSS(container)
    engine.compile()

  describe 'dispatched by argument types', ->
    it 'should create command instance for each operation', ->
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector.Selecter)
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector)
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector)
      expect(engine.document.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.document.Selector.Qualifier)

    it 'should have absolute and relative path set for each command', ->
      expect(engine.document.Command(['tag', 'div']).path).to.eql('div')
      expect(engine.document.Command(['tag', 'h1']).key).to.eql('h1')
      expect(engine.document.Command(['tag', ['&'], 'h1']).path).to.eql('&h1')

      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active')
      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active')

      expect(engine.document.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em')

      expect(engine.document.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]')

    it 'should group commands by tags', ->
      expect(engine.document.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button')
      expect(engine.document.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button')
      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.document.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active')
      expect(engine.document.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active')
      expect(engine.document.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(undefined)
      expect(engine.document.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~')
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active')
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ')
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active')

    it 'should group elements in comma', ->
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~')
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(undefined)
```

Response:
var expect;

({expect} = chai);

describe('Selectors', function() {
  var engine;
  engine = null;
  before(function() {
    var container;
    container = document.createElement('div');
    engine = new GSS(container);
    return engine.compile();
  });
  return describe('dispatched by argument types', function() {
    it('should create command instance for each operation', function() {
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector.Selecter);
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector);
      expect(engine.document.Command(['tag', 'div'])).to.be.an.instanceof(engine.document.Selector);
      return expect(engine.document.Command(['tag', ['tag', 'div'], 'div'])).to.be.an.instanceof(engine.document.Selector.Qualifier);
    });
    it('should have absolute and relative path set for each command', function() {
      expect(engine.document.Command(['tag', 'div']).path).to.eql('div');
      expect(engine.document.Command(['tag', 'h1']).key).to.eql('h1');
      expect(engine.document.Command(['tag', ['&'], 'h1']).path).to.eql('&h1');
      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).path).to.eql('p.active');
      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).key).to.eql('.active');
      expect(engine.document.Command(['tag', ['+', ['.', ['tag', 'p'], 'active']], 'em']).path).to.eql('p.active+em');
      return expect(engine.document.Command(['[*=]', ['+', ['.', ['tag', 'p'], 'active']], 'em', 'v']).path).to.eql('p.active+[em*="v"]');
    });
    it('should group commands by tags', function() {
      expect(engine.document.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).selector).to.eql(' #button');
      expect(engine.document.Command(['#', [' ', ['.', ['tag', ['>'], 'p'], 'active']], 'button']).path).to.eql('>p.active #button');
      expect(engine.document.Command(['.', ['tag', 'p'], 'active']).selector).to.eql('p.active');
      expect(engine.document.Command(['.', ['tag', ['~~'], 'p'], 'active']).path).to.eql('~~p.active');
      expect(engine.document.Command(['.', ['tag', ['~~'], 'p'], 'active']).selector).to.eql('p.active');
      expect(engine.document.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).selector).to.eql(void 0);
      expect(engine.document.Command(['!~', ['.', ['tag', ['~~'], 'p'], 'active']]).path).to.eql('~~p.active!~');
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).head.command.path).to.eql('~~ p.active');
      expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).tail.command.path).to.eql('~~ ');
      return expect(engine.document.Command(['.', ['tag', [' ', ['~~']], 'p'], 'active']).selector).to.eql(' p.active');
    });
    return it('should group elements in comma', function() {
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).path).to.eql('p.active');
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).selector).to.eql('p.active');
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).tail.command.path).to.eql('p');
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active']]).head.command.path).to.eql('p.active');
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).selector).to.eql('p.active,p');
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['tag', 'p']]).path).to.eql('p.active,p');
      expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).path).to.eql('p.active,p~~');
      return expect(engine.document.Command([',', ['.', ['tag', 'p'], 'active'], ['~~', ['tag', 'p']]]).selector).to.eql(void 0);
    });
  });
});