1 files changed, 260 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/inquirer/lib/prompts/expand.js b/tools/node_modules/eslint/node_modules/inquirer/lib/prompts/expand.js
new file mode 100644
index 0000000000..336d98c5af
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/inquirer/lib/prompts/expand.js
@@ -0,0 +1,260 @@
+/**
+ * `rawlist` type prompt
+ */
+
+var _ = require('lodash');
+var util = require('util');
+var chalk = require('chalk');
+var Base = require('./base');
+var Separator = require('../objects/separator');
+var observe = require('../utils/events');
+var Paginator = require('../utils/paginator');
+
+/**
+ * Module exports
+ */
+
+module.exports = Prompt;
+
+/**
+ * Constructor
+ */
+
+function Prompt() {
+  Base.apply(this, arguments);
+
+  if (!this.opt.choices) {
+    this.throwParamError('choices');
+  }
+
+  this.validateChoices(this.opt.choices);
+
+  // Add the default `help` (/expand) option
+  this.opt.choices.push({
+    key: 'h',
+    name: 'Help, list all options',
+    value: 'help'
+  });
+
+  this.opt.validate = function (choice) {
+    if (choice == null) {
+      return 'Please enter a valid command';
+    }
+
+    return choice !== 'help';
+  };
+
+  // Setup the default string (capitalize the default key)
+  this.opt.default = this.generateChoicesString(this.opt.choices, this.opt.default);
+
+  this.paginator = new Paginator();
+}
+util.inherits(Prompt, Base);
+
+/**
+ * Start the Inquiry session
+ * @param  {Function} cb      Callback when prompt is done
+ * @return {this}
+ */
+
+Prompt.prototype._run = function (cb) {
+  this.done = cb;
+
+  // Save user answer and update prompt to show selected option.
+  var events = observe(this.rl);
+  var validation = this.handleSubmitEvents(
+    events.line.map(this.getCurrentValue.bind(this))
+  );
+  validation.success.forEach(this.onSubmit.bind(this));
+  validation.error.forEach(this.onError.bind(this));
+  this.keypressObs = events.keypress.takeUntil(validation.success)
+    .forEach(this.onKeypress.bind(this));
+
+  // Init the prompt
+  this.render();
+
+  return this;
+};
+
+/**
+ * Render the prompt to screen
+ * @return {Prompt} self
+ */
+
+Prompt.prototype.render = function (error, hint) {
+  var message = this.getQuestion();
+  var bottomContent = '';
+
+  if (this.status === 'answered') {
+    message += chalk.cyan(this.answer);
+  } else if (this.status === 'expanded') {
+    var choicesStr = renderChoices(this.opt.choices, this.selectedKey);
+    message += this.paginator.paginate(choicesStr, this.selectedKey, this.opt.pageSize);
+    message += '\n  Answer: ';
+  }
+
+  message += this.rl.line;
+
+  if (error) {
+    bottomContent = chalk.red('>> ') + error;
+  }
+
+  if (hint) {
+    bottomContent = chalk.cyan('>> ') + hint;
+  }
+
+  this.screen.render(message, bottomContent);
+};
+
+Prompt.prototype.getCurrentValue = function (input) {
+  if (!input) {
+    input = this.rawDefault;
+  }
+  var selected = this.opt.choices.where({key: input.toLowerCase().trim()})[0];
+  if (!selected) {
+    return null;
+  }
+
+  return selected.value;
+};
+
+/**
+ * Generate the prompt choices string
+ * @return {String}  Choices string
+ */
+
+Prompt.prototype.getChoices = function () {
+  var output = '';
+
+  this.opt.choices.forEach(function (choice) {
+    output += '\n  ';
+
+    if (choice.type === 'separator') {
+      output += ' ' + choice;
+      return;
+    }
+
+    var choiceStr = choice.key + ') ' + choice.name;
+    if (this.selectedKey === choice.key) {
+      choiceStr = chalk.cyan(choiceStr);
+    }
+    output += choiceStr;
+  }.bind(this));
+
+  return output;
+};
+
+Prompt.prototype.onError = function (state) {
+  if (state.value === 'help') {
+    this.selectedKey = '';
+    this.status = 'expanded';
+    this.render();
+    return;
+  }
+  this.render(state.isValid);
+};
+
+/**
+ * When user press `enter` key
+ */
+
+Prompt.prototype.onSubmit = function (state) {
+  this.status = 'answered';
+  var choice = this.opt.choices.where({value: state.value})[0];
+  this.answer = choice.short || choice.name;
+
+  // Re-render prompt
+  this.render();
+  this.screen.done();
+  this.done(state.value);
+};
+
+/**
+ * When user press a key
+ */
+
+Prompt.prototype.onKeypress = function () {
+  this.selectedKey = this.rl.line.toLowerCase();
+  var selected = this.opt.choices.where({key: this.selectedKey})[0];
+  if (this.status === 'expanded') {
+    this.render();
+  } else {
+    this.render(null, selected ? selected.name : null);
+  }
+};
+
+/**
+ * Validate the choices
+ * @param {Array} choices
+ */
+
+Prompt.prototype.validateChoices = function (choices) {
+  var formatError;
+  var errors = [];
+  var keymap = {};
+  choices.filter(Separator.exclude).forEach(function (choice) {
+    if (!choice.key || choice.key.length !== 1) {
+      formatError = true;
+    }
+    if (keymap[choice.key]) {
+      errors.push(choice.key);
+    }
+    keymap[choice.key] = true;
+    choice.key = String(choice.key).toLowerCase();
+  });
+
+  if (formatError) {
+    throw new Error('Format error: `key` param must be a single letter and is required.');
+  }
+  if (keymap.h) {
+    throw new Error('Reserved key error: `key` param cannot be `h` - this value is reserved.');
+  }
+  if (errors.length) {
+    throw new Error('Duplicate key error: `key` param must be unique. Duplicates: ' +
+        _.uniq(errors).join(', '));
+  }
+};
+
+/**
+ * Generate a string out of the choices keys
+ * @param  {Array}  choices
+ * @param  {Number} defaultIndex - the choice index to capitalize
+ * @return {String} The rendered choices key string
+ */
+Prompt.prototype.generateChoicesString = function (choices, defaultIndex) {
+  var defIndex = choices.realLength - 1;
+  if (_.isNumber(defaultIndex) && this.opt.choices.getChoice(defaultIndex)) {
+    defIndex = defaultIndex;
+  }
+  var defStr = this.opt.choices.pluck('key');
+  this.rawDefault = defStr[defIndex];
+  defStr[defIndex] = String(defStr[defIndex]).toUpperCase();
+  return defStr.join('');
+};
+
+/**
+ * Function for rendering checkbox choices
+ * @param  {String} pointer Selected key
+ * @return {String}         Rendered content
+ */
+
+function renderChoices(choices, pointer) {
+  var output = '';
+
+  choices.forEach(function (choice) {
+    output += '\n  ';
+
+    if (choice.type === 'separator') {
+      output += ' ' + choice;
+      return;
+    }
+
+    var choiceStr = choice.key + ') ' + choice.name;
+    if (pointer === choice.key) {
+      choiceStr = chalk.cyan(choiceStr);
+    }
+    output += choiceStr;
+  });
+
+  return output;
+}