prettycats/dist/predicates/strings.js

Helpful, common, and curried predicates library built on Ramda.

'use strict';

var R = require('ramda'),
    __ = require('./_private.js');

var isString = R.is(String),
    isStringOfLength = __.ofLength(String, 'equals'),
    isStringOfLengthAtLeast = __.ofLength(String, 'gte'),
    isStringOfLengthAtMost = __.ofLength(String, 'lte'),
    isStringLongerThan = __.ofLength(String, 'gt'),
    isStringShorterThan = __.ofLength(String, 'lt');

var isStringContaining = R.curry(function (subStr, str) {
  return R.compose(R.not, R.equals(-1), R.indexOf(subStr))(str);
});
var isStringMatching = R.curry(function (pattern, str) {
  return R.test(pattern, str);
});
var stringIsOneOf = R.curry(function (selectionArr, str) {
  return R.allPass([R.is(String), R.includes(R.__, selectionArr)])(str);
});
var isStringOfLengthBetween = R.curry(function (min, max, str) {
  return R.both(isStringLongerThan(min), isStringShorterThan(max))(str);
});
var isStringOfLengthBetweenInclusive = R.curry(function (min, max, str) {
  return R.both(isStringOfLengthAtLeast(min), isStringOfLengthAtMost(max))(str);
});
var isEmail = R.test(/\S+@\S+/);

var isNumericString = function isNumericString(str) {
  return isString(str) && !isNaN(parseInt(str, 10));
};

var isTimestamp = R.test(/(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))|(\d{4}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d([+-][0-2]\d:[0-5]\d|Z))/);
var isMySqlTimestamp = R.test(/^([1-2][0-9]{3})-([0-1][0-9])-([0-3][0-9])(?:( [0-2][0-9]):([0-5][0-9]):([0-5][0-9]))?$/);
var isUUID = R.test(/^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$/gi);

var isJSON = function isJSON(str) {
  try {
    JSON.parse(str);
  } catch (e) {
    return false;
  }

  return R.is(String, str);
};

module.exports = {
  isString: isString,
  isStringOfLength: isStringOfLength,
  isStringOfLengthAtLeast: isStringOfLengthAtLeast,
  isStringOfLengthAtMost: isStringOfLengthAtMost,
  isStringLongerThan: isStringLongerThan,
  isStringShorterThan: isStringShorterThan,
  isStringOfLengthBetween: isStringOfLengthBetween,
  isStringOfLengthBetweenInclusive: isStringOfLengthBetweenInclusive,
  isStringContaining: isStringContaining,
  isStringMatching: isStringMatching,
  stringIsOneOf: stringIsOneOf,
  isNumericString: isNumericString,
  isTimestamp: isTimestamp,
  isMySqlTimestamp: isMySqlTimestamp,
  isEmail: isEmail,
  isJSON: isJSON,
  isUUID: isUUID,
  isJson: isJSON,
  isUuid: isUUID
};
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dGgoU3RyaW5nLCAnZ3RlJyksXG4gICAgICBpc1N0cmluZ09mTGVuZ3RoQXRNb3N0ICA9IF9fLm9mTGVuZ3RoKFN0cmluZywgJ2x0ZScpLFxuICAgICAgaXNTdHJpbmdMb25nZXJUaGFuICAgICAgPSBfXy5vZkxlbmd0aChTdHJpbmcsICdndCcpLFxuICAgICAgaXNTdHJpbmdTaG9ydGVyVGhhbiAgICAgPSBfXy5vZkxlbmd0aChTdHJpbmcsICdsdCcpO1xuXG5jb25zdCBpc1N0cmluZ0NvbnRhaW5pbmcgPSBSLmN1cnJ5KChzdWJTdHIsIHN0cikgPT4ge1xuICByZXR1cm4gUi5jb21wb3NlKFIubm90LCBSLmVxdWFscygtMSksIFIuaW5kZXhPZihzdWJTdHIpKShzdHIpO1xufSk7XG5cbmNvbnN0IGlzU3RyaW5nTWF0Y2hpbmcgPSBSLmN1cnJ5KChwYXR0ZXJuLCBzdHIpID0+IHtcbiAgcmV0dXJuIFIudGVzdChwYXR0ZXJuLCBzdHIpO1xufSk7XG5cbmNvbnN0IHN0cmluZ0lzT25lT2YgPSBSLmN1cnJ5KChzZWxlY3Rpb25BcnIsIHN0cikgPT4ge1xuICByZXR1cm4gUi5hbGxQYXNzKFtSLmlzKFN0cmluZyksIFIuaW5jbHVkZXMoUi5fXywgc2VsZWN0aW9uQXJyKV0pKHN0cik7XG59KTtcblxuY29uc3QgaXNTdHJpbmdPZkxlbmd0aEJldHdlZW4gPSBSLmN1cnJ5KChtaW4sIG1heCwgc3RyKSA9PiB7XG4gIHJldHVybiBSLmJvdGgoaXNTdHJpbmdMb25nZXJUaGFuKG1pbiksIGlzU3RyaW5nU2hvcnRlclRoYW4obWF4KSkoc3RyKTtcbn0pO1xuXG5jb25zdCBpc1N0cmluZ09mTGVuZ3RoQmV0d2VlbkluY2x1c2l2ZSA9IFIuY3VycnkoKG1pbiwgbWF4LCBzdHIpID0+IHtcbiAgcmV0dXJuIFIuYm90aChpc1N0cmluZ09mTGVuZ3RoQXRMZWFzdChtaW4pLCBpc1N0cmluZ09mTGVuZ3RoQXRNb3N0KG1heCkpKHN0cik7XG59KTtcblxuY29uc3QgaXNFbWFpbCA9IFIudGVzdCgvXFxTK0BcXFMrLyk7XG5cbmNvbnN0IGlzTnVtZXJpY1N0cmluZyA9IHN0ciA9PiBpc1N0cmluZyhzdHIpICYmICFpc05hTihwYXJzZUludChzdHIsIDEwKSk7XG5cbmNvbnN0IGlzVGltZXN0YW1wID0gUi50ZXN0KC8oXFxkezR9LVswMV1cXGQtWzAtM11cXGRUWzAtMl1cXGQ6WzAtNV1cXGQ6WzAtNV1cXGRcXC5cXGQrKFsrLV1bMC0yXVxcZDpbMC01XVxcZHxaKSl8KFxcZHs0fS1bMDFdXFxkLVswLTNdXFxkVFswLTJdXFxkOlswLTVdXFxkOlswLTVdXFxkKFsrLV1bMC0yXVxcZDpbMC01XVxcZHxaKSl8KFxcZHs0fS1bMDFdXFxkLVswLTNdXFxkVFswLTJdXFxkOlswLTVdXFxkKFsrLV1bMC0yXVxcZDpbMC01XVxcZHxaKSkvKTtcblxuY29uc3QgaXNNeVNxbFRpbWVzdGFtcCA9IFIudGVzdCgvXihbMS0yXVswLTldezN9KS0oWzAtMV1bMC05XSktKFswLTNdWzAtOV0pKD86KCBbMC0yXVswLTldKTooWzAtNV1bMC05XSk6KFswLTVdWzAtOV0pKT8kLyk7XG5cbmNvbnN0IGlzVVVJRCA9IFIudGVzdCgvXlswLTlhLWZBLUZdezh9XFxiLVswLTlhLWZBLUZdezR9XFxiLVswLTlhLWZBLUZdezR9XFxiLVswLTlhLWZBLUZdezR9XFxiLVswLTlhLWZBLUZdezEyfSQvZ2kpO1xuXG5jb25zdCBpc0pTT04gPSAoc3RyKSA9PiB7XG4gIHRyeSB7XG4gICAgSlNPTi5wYXJzZShzdHIpO1xuICB9IGNhdGNoIChlKSB7XG4gICAgcmV0dXJuIGZhbHNlO1xuICB9XG4gIHJldHVybiBSLmlzKFN0cmluZywgc3RyKTtcbn07XG5cbm1vZHVsZS5leHBvcnRzID0ge1xuICBpc1N0cmluZyxcbiAgaXNTdHJpbmdPZkxlbmd0aCxcbiAgaXNTdHJpbmdPZkxlbmd0aEF0TGVhc3QsXG4gIGlzU3RyaW5nT2ZMZW5ndGhBdE1vc3QsXG4gIGlzU3RyaW5nTG9uZ2VyVGhhbixcbiAgaXNTdHJpbmdTaG9ydGVyVGhhbixcbiAgaXNTdHJpbmdPZkxlbmd0aEJldHdlZW4sXG4gIGlzU3RyaW5nT2ZMZW5ndGhCZXR3ZWVuSW5jbHVzaXZlLFxuICBpc1N0cmluZ0NvbnRhaW5pbmcsXG4gIGlzU3RyaW5nTWF0Y2hpbmcsXG4gIHN0cmluZ0lzT25lT2YsXG4gIGlzTnVtZXJpY1N0cmluZyxcbiAgaXNUaW1lc3RhbXAsXG4gIGlzTXlTcWxUaW1lc3RhbXAsXG4gIGlzRW1haWwsXG4gIGlzSlNPTixcbiAgaXNVVUlELFxuICBpc0pzb24gOiBpc0pTT04sXG4gIGlzVXVpZCA6IGlzVVVJRFxufTtcbiJdfQ==