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120 packages found

Create parsers using parser combinators with helpful error messages

published version 0.4.2, 8 months ago60 dependents licensed under $BSD-2-Clause
2,090,823

easier than regex string matching patterns for urls and other strings. turn strings into data or data into strings.

published version 1.0.3, 8 years ago485 dependents licensed under $MIT
1,314,876

Variadic y-combinator for recursive anonymous functions

published version 2.0.1, 5 years ago5 dependents licensed under $MIT
194,364

Monadic parser combinators.

published version 4.3.1, 2 years ago1 dependents licensed under $MIT
42,854

Library for building parsers using combinators.

published version 1.3.9, 9 months ago9 dependents licensed under $MIT
21,371

A parser combinator library like Parsec.

published version 0.1.2, 14 years ago5 dependents
21,411

Validatem combinator for validating both the keys and values of a mapping object

published version 0.1.3, 5 years ago6 dependents licensed under $WTFPL OR CC0-1.0
8,753

Minimalistic yet feature-rich IO decoding and encoding

published version 1.4.3, 8 months ago13 dependents licensed under $(MIT OR Apache-2.0)
11,919

user-agent-based polyfill combinator

published version 2.1.1, 10 years ago10 dependents licensed under $MIT
13,390

eponymous functions from the SKI calculus

published version 2.0.0, 9 years ago3 dependents licensed under $CC-0
12,650

Validatem combinator for overriding the validation error message that is produced when a (set of) rules fails

published version 0.3.0, 5 years ago13 dependents licensed under $WTFPL OR CC0-1.0
7,640

Validatem combinator for marking a hasShape or object literal rule as allowing additional, unspecified properties

published version 0.1.0, 5 years ago13 dependents licensed under $WTFPL OR CC0-1.0
7,285

Validatem combinator for specifying 'alternatives', and verifying that a value meets at least one of the rules

published version 0.1.9, 5 years ago10 dependents licensed under $WTFPL OR CC0-1.0
8,125

Validatem combinator for applying context (custom configuration) to a validator

published version 0.1.2, 5 years ago3 dependents licensed under $WTFPL OR CC0-1.0
7,293

Validatem combinator for validating that a value is an array of items meeting certain rules

published version 0.1.3, a year ago9 dependents licensed under $WTFPL OR CC0-1.0
7,873

Validatem combinator for validating that a value has certain keys that pass certain validators (eg. object validation)

published version 0.1.8, 5 years ago3 dependents licensed under $WTFPL OR CC0-1.0
7,739

The constant function from functional programming: it takes a value and returns a function that will return that value:

published version 1.0.0, 12 years ago26 dependents licensed under $MIT
4,004

Masala Parser

published version 2.0.0-alpha.0, 7 hours ago10 dependents licensed under $LGPL‑3.0
3,072

A set of functions to build and compose complex regular expressions

published version 0.7.1, 2 years ago3 dependents licensed under $MIT
3,383

Conditional promise catch handler

published version 3.0.0, 4 years ago16 dependents licensed under $MIT
2,292
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