Tamcher

Make composable text matchers.

Install

yarn add tamcher --save

Use

    import { mm } from 'tamcher';

    let mNumber = mm.mr(/^(\d*)(.*)/s, 'number'); // returns a matcher

    mNumber('333') // returns { number: '333' }

See esra for an example use of this library, that parses chess PGN files.

Matchers

import { mm } from 'tamcher';

mm.mr(/regex/, matcherType) Match a regex

Regex Format Regex has to match the rest of the string at the end, so it has to be in this format: /^Extra(YourCapturingGroup)Extra(.*)/s

mm.mseq3([matcher, matcher, matcher], reducer) Match three matchers in sequence:

reducer is a Reducer that defines how to combine the three matchers.

mm.mstar(matcher) Match a matcher greedily

mm.mgroup(matcher, mm.oneMatcherNode(matcherType)) Group a matcher into an object

See matchmaker.ts for all matchers.

Reducers

You can make a reducer for selecting matchers like this: _ => _[0].

import { rr } from 'tamcher';

rr.fFirstTwo(matcherType) Array of first two matchers wrapped to an object with key matcherType.

rr.fLastTwo(matcherType)

rr.fAll(matcherType) Array all matchers

See reducers.ts for all reducers.