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qwen/nodejs/node_modules/prompts/lib/elements/date.js

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+'use strict';
+
+const color = require('kleur');
+const Prompt = require('./prompt');
+const { style, clear, figures } = require('../util');
+const { erase, cursor } = require('sisteransi');
+const { DatePart, Meridiem, Day, Hours, Milliseconds, Minutes, Month, Seconds, Year } = require('../dateparts');
+
+const regex = /\\(.)|"((?:\\["\\]|[^"])+)"|(D[Do]?|d{3,4}|d)|(M{1,4})|(YY(?:YY)?)|([aA])|([Hh]{1,2})|(m{1,2})|(s{1,2})|(S{1,4})|./g;
+const regexGroups = {
+  1: ({token}) => token.replace(/\\(.)/g, '$1'),
+  2: (opts) => new Day(opts), // Day // TODO
+  3: (opts) => new Month(opts), // Month
+  4: (opts) => new Year(opts), // Year
+  5: (opts) => new Meridiem(opts), // AM/PM // TODO (special)
+  6: (opts) => new Hours(opts), // Hours
+  7: (opts) => new Minutes(opts), // Minutes
+  8: (opts) => new Seconds(opts), // Seconds
+  9: (opts) => new Milliseconds(opts), // Fractional seconds
+}
+
+const dfltLocales = {
+  months: 'January,February,March,April,May,June,July,August,September,October,November,December'.split(','),
+  monthsShort: 'Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec'.split(','),
+  weekdays: 'Sunday,Monday,Tuesday,Wednesday,Thursday,Friday,Saturday'.split(','),
+  weekdaysShort: 'Sun,Mon,Tue,Wed,Thu,Fri,Sat'.split(',')
+}
+
+
+/**
+ * DatePrompt Base Element
+ * @param {Object} opts Options
+ * @param {String} opts.message Message
+ * @param {Number} [opts.initial] Index of default value
+ * @param {String} [opts.mask] The format mask
+ * @param {object} [opts.locales] The date locales
+ * @param {String} [opts.error] The error message shown on invalid value
+ * @param {Function} [opts.validate] Function to validate the submitted value
+ * @param {Stream} [opts.stdin] The Readable stream to listen to
+ * @param {Stream} [opts.stdout] The Writable stream to write readline data to
+ */
+class DatePrompt extends Prompt {
+  constructor(opts={}) {
+    super(opts);
+    this.msg = opts.message;
+    this.cursor = 0;
+    this.typed = '';
+    this.locales = Object.assign(dfltLocales, opts.locales);
+    this._date = opts.initial || new Date();
+    this.errorMsg = opts.error || 'Please Enter A Valid Value';
+    this.validator = opts.validate || (() => true);
+    this.mask = opts.mask || 'YYYY-MM-DD HH:mm:ss';
+    this.clear = clear('', this.out.columns);
+    this.render();
+  }
+
+  get value() {
+    return this.date
+  }
+
+  get date() {
+    return this._date;
+  }
+
+  set date(date) {
+    if (date) this._date.setTime(date.getTime());
+  }
+
+  set mask(mask) {
+    let result;
+    this.parts = [];
+    while(result = regex.exec(mask)) {
+      let match = result.shift();
+      let idx = result.findIndex(gr => gr != null);
+      this.parts.push(idx in regexGroups
+        ? regexGroups[idx]({ token: result[idx] || match, date: this.date, parts: this.parts, locales: this.locales })
+        : result[idx] || match);
+    }
+
+    let parts = this.parts.reduce((arr, i) => {
+      if (typeof i === 'string' && typeof arr[arr.length - 1] === 'string')
+        arr[arr.length - 1] += i;
+      else arr.push(i);
+      return arr;
+    }, []);
+
+    this.parts.splice(0);
+    this.parts.push(...parts);
+    this.reset();
+  }
+
+  moveCursor(n) {
+    this.typed = '';
+    this.cursor = n;
+    this.fire();
+  }
+
+  reset() {
+    this.moveCursor(this.parts.findIndex(p => p instanceof DatePart));
+    this.fire();
+    this.render();
+  }
+
+  exit() {
+    this.abort();
+  }
+
+  abort() {
+    this.done = this.aborted = true;
+    this.error = false;
+    this.fire();
+    this.render();
+    this.out.write('\n');
+    this.close();
+  }
+
+  async validate() {
+    let valid = await this.validator(this.value);
+    if (typeof valid === 'string') {
+      this.errorMsg = valid;
+      valid = false;
+    }
+    this.error = !valid;
+  }
+
+  async submit() {
+    await this.validate();
+    if (this.error) {
+      this.color = 'red';
+      this.fire();
+      this.render();
+      return;
+    }
+    this.done = true;
+    this.aborted = false;
+    this.fire();
+    this.render();
+    this.out.write('\n');
+    this.close();
+  }
+
+  up() {
+    this.typed = '';
+    this.parts[this.cursor].up();
+    this.render();
+  }
+
+  down() {
+    this.typed = '';
+    this.parts[this.cursor].down();
+    this.render();
+  }
+
+  left() {
+    let prev = this.parts[this.cursor].prev();
+    if (prev == null) return this.bell();
+    this.moveCursor(this.parts.indexOf(prev));
+    this.render();
+  }
+
+  right() {
+    let next = this.parts[this.cursor].next();
+    if (next == null) return this.bell();
+    this.moveCursor(this.parts.indexOf(next));
+    this.render();
+  }
+
+  next() {
+    let next = this.parts[this.cursor].next();
+    this.moveCursor(next
+      ? this.parts.indexOf(next)
+      : this.parts.findIndex((part) => part instanceof DatePart));
+    this.render();
+  }
+
+  _(c) {
+    if (/\d/.test(c)) {
+      this.typed += c;
+      this.parts[this.cursor].setTo(this.typed);
+      this.render();
+    }
+  }
+
+  render() {
+    if (this.closed) return;
+    if (this.firstRender) this.out.write(cursor.hide);
+    else this.out.write(clear(this.outputText, this.out.columns));
+    super.render();
+
+    // Print prompt
+    this.outputText = [
+      style.symbol(this.done, this.aborted),
+      color.bold(this.msg),
+      style.delimiter(false),
+      this.parts.reduce((arr, p, idx) => arr.concat(idx === this.cursor && !this.done ? color.cyan().underline(p.toString()) : p), [])
+          .join('')
+    ].join(' ');
+
+    // Print error
+    if (this.error) {
+      this.outputText += this.errorMsg.split('\n').reduce(
+          (a, l, i) => a + `\n${i ? ` ` : figures.pointerSmall} ${color.red().italic(l)}`, ``);
+    }
+
+    this.out.write(erase.line + cursor.to(0) + this.outputText);
+  }
+}
+
+module.exports = DatePrompt;