.

node_modules/prompts/dist/elements/number.js

@@ -0,0 +1,236 @@
+"use strict";
+
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
+
+function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
+
+const color = require('kleur');
+
+const Prompt = require('./prompt');
+
+const _require = require('sisteransi'),
+      cursor = _require.cursor,
+      erase = _require.erase;
+
+const _require2 = require('../util'),
+      style = _require2.style,
+      clear = _require2.clear,
+      figures = _require2.figures,
+      strip = _require2.strip;
+
+const isNumber = /[0-9]/;
+
+const isDef = any => any !== undefined;
+
+const round = (number, precision) => {
+  let factor = Math.pow(10, precision);
+  return Math.round(number * factor) / factor;
+};
+/**
+ * NumberPrompt Base Element
+ * @param {Object} opts Options
+ * @param {String} opts.message Message
+ * @param {String} [opts.style='default'] Render style
+ * @param {Number} [opts.initial] Default value
+ * @param {Number} [opts.max=+Infinity] Max value
+ * @param {Number} [opts.min=-Infinity] Min value
+ * @param {Boolean} [opts.float=false] Parse input as floats
+ * @param {Number} [opts.round=2] Round floats to x decimals
+ * @param {Number} [opts.increment=1] Number to increment by when using arrow-keys
+ * @param {Function} [opts.validate] Validate function
+ * @param {Stream} [opts.stdin] The Readable stream to listen to
+ * @param {Stream} [opts.stdout] The Writable stream to write readline data to
+ * @param {String} [opts.error] The invalid error label
+ */
+
+
+class NumberPrompt extends Prompt {
+  constructor(opts = {}) {
+    super(opts);
+    this.transform = style.render(opts.style);
+    this.msg = opts.message;
+    this.initial = isDef(opts.initial) ? opts.initial : '';
+    this.float = !!opts.float;
+    this.round = opts.round || 2;
+    this.inc = opts.increment || 1;
+    this.min = isDef(opts.min) ? opts.min : -Infinity;
+    this.max = isDef(opts.max) ? opts.max : Infinity;
+    this.errorMsg = opts.error || `Please Enter A Valid Value`;
+
+    this.validator = opts.validate || (() => true);
+
+    this.color = `cyan`;
+    this.value = ``;
+    this.typed = ``;
+    this.lastHit = 0;
+    this.render();
+  }
+
+  set value(v) {
+    if (!v && v !== 0) {
+      this.placeholder = true;
+      this.rendered = color.gray(this.transform.render(`${this.initial}`));
+      this._value = ``;
+    } else {
+      this.placeholder = false;
+      this.rendered = this.transform.render(`${round(v, this.round)}`);
+      this._value = round(v, this.round);
+    }
+
+    this.fire();
+  }
+
+  get value() {
+    return this._value;
+  }
+
+  parse(x) {
+    return this.float ? parseFloat(x) : parseInt(x);
+  }
+
+  valid(c) {
+    return c === `-` || c === `.` && this.float || isNumber.test(c);
+  }
+
+  reset() {
+    this.typed = ``;
+    this.value = ``;
+    this.fire();
+    this.render();
+  }
+
+  abort() {
+    let x = this.value;
+    this.value = x !== `` ? x : this.initial;
+    this.done = this.aborted = true;
+    this.error = false;
+    this.fire();
+    this.render();
+    this.out.write(`\n`);
+    this.close();
+  }
+
+  validate() {
+    var _this = this;
+
+    return _asyncToGenerator(function* () {
+      let valid = yield _this.validator(_this.value);
+
+      if (typeof valid === `string`) {
+        _this.errorMsg = valid;
+        valid = false;
+      }
+
+      _this.error = !valid;
+    })();
+  }
+
+  submit() {
+    var _this2 = this;
+
+    return _asyncToGenerator(function* () {
+      yield _this2.validate();
+
+      if (_this2.error) {
+        _this2.color = `red`;
+
+        _this2.fire();
+
+        _this2.render();
+
+        return;
+      }
+
+      let x = _this2.value;
+      _this2.value = x !== `` ? x : _this2.initial;
+      _this2.done = true;
+      _this2.aborted = false;
+      _this2.error = false;
+
+      _this2.fire();
+
+      _this2.render();
+
+      _this2.out.write(`\n`);
+
+      _this2.close();
+    })();
+  }
+
+  up() {
+    this.typed = ``;
+    if (this.value >= this.max) return this.bell();
+    this.value += this.inc;
+    this.color = `cyan`;
+    this.fire();
+    this.render();
+  }
+
+  down() {
+    this.typed = ``;
+    if (this.value <= this.min) return this.bell();
+    this.value -= this.inc;
+    this.color = `cyan`;
+    this.fire();
+    this.render();
+  }
+
+  delete() {
+    let val = this.value.toString();
+    if (val.length === 0) return this.bell();
+    this.value = this.parse(val = val.slice(0, -1)) || ``;
+    this.color = `cyan`;
+    this.fire();
+    this.render();
+  }
+
+  next() {
+    this.value = this.initial;
+    this.fire();
+    this.render();
+  }
+
+  _(c, key) {
+    if (!this.valid(c)) return this.bell();
+    const now = Date.now();
+    if (now - this.lastHit > 1000) this.typed = ``; // 1s elapsed
+
+    this.typed += c;
+    this.lastHit = now;
+    this.color = `cyan`;
+    if (c === `.`) return this.fire();
+    this.value = Math.min(this.parse(this.typed), this.max);
+    if (this.value > this.max) this.value = this.max;
+    if (this.value < this.min) this.value = this.min;
+    this.fire();
+    this.render();
+  }
+
+  render() {
+    if (this.closed) return;
+    super.render();
+    let clear = erase.line + (this.lines ? erase.down(this.lines) : ``) + cursor.to(0);
+    this.lines = 0;
+    let error = ``;
+
+    if (this.error) {
+      let lines = this.errorMsg.split(`\n`);
+      error += lines.reduce((a, l, i) => a + `\n${i ? ` ` : figures.pointerSmall} ${color.red().italic(l)}`, ``);
+      this.lines = lines.length;
+    }
+
+    let underline = !this.done || !this.done && !this.placeholder;
+    let prompt = [style.symbol(this.done, this.aborted), color.bold(this.msg), style.delimiter(this.done), underline ? color[this.color]().underline(this.rendered) : this.rendered].join(` `);
+    let position = ``;
+
+    if (this.lines) {
+      position += cursor.up(this.lines);
+      position += cursor.left + cursor.to(strip(prompt).length);
+    }
+
+    this.out.write(clear + prompt + error + position);
+  }
+
+}
+
+module.exports = NumberPrompt;