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This library will create a Mongo regex from a "description" (see readme for supported descriptions), and vice versa. Useful for building UX on top of regexes

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mixmaxhq/mongo-regex-description

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mongo-regex-description

This library will create a Mongo-style regex from a "description" (a tuple of an operator and a value). This is useful for building UIs on top of Mongo or Sift $regex operators.

Also see https://github.com/mixmaxhq/mongo-comparison-ops-description for the numerical counterpart to the library.

Example:

var regExpDescription = require('mongo-regex-description');

var regex = regExpDescription.create({
  operator: 'is not',
  value: 'my value',
});
// { $not: { $regex: '^my value$', $options: 'i' } }

var description = regExpDescription.parse({
  $not: {
    $regex: '^my value$',
    $options: 'i',
  },
});
// { operator: 'is not', value: 'my value' }

Supported Operators

  • is: Matches exactly, but case insensitively
  • is not: Negates is
  • contains: Matches if value exists inside, case insensitively
  • does not contain: Negates contains
  • starts with: Matches if value exists at the beginning of the string, case insensitively
  • ends with: Matches if value exists at the end of the string, case insensitively

Changelog

  • 1.2.2 Fixed issue where empty "ends with" was parsed incorrectly.
  • 1.2.1 Fixed issue where empty strings weren't parsed.
  • 1.2.0 Can be used in the browser (use npm build and consume the file dist/browser/index.js)
  • 1.1.1 Reordered supportedOperators to put more commonly used contains first.
  • 1.1.0 Added require('mongo-regex-description').supportedOperators array as a convenience.
  • 1.0.1 parse() returns null if it can't parse the query.
  • 1.0.0 Initial release

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This library will create a Mongo regex from a "description" (see readme for supported descriptions), and vice versa. Useful for building UX on top of regexes

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