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wild-trie

v0.0.2

Published

trie data stricture with wildcards

Downloads

2

Readme

wild-trie

small and flexible trie with wildcards

Examples

import WildTrie from 'wild-trie'

var trie = new WildTrie({
  //path: any function that returns an array of keys of any type
  path: function(pointer) { return pointer.split('/').slice(1) },
  //wild: any value to use as wildcard Key (equality is based on the "SameValueZero" algorithm)
  wild: '*'
})

var _a = trie.add('/*/a'),
    a_ = trie.add('/a/*'),
    aa = trie.add('/a/a')

console.assert(trie.size, 3)
console.assert(trie.get('/a/a'), aa)
console.assert(trie.get('/z/a'), _a)
console.assert(trie.get('/a/z'), a_)
console.assert(trie.get('/z/z'), undefined)

console.assert(trie.all('/a/a'), [aa, a_, _a])
console.assert(trie.all('/z/a'), [a_])
console.assert(trie.all('/z/z'), [])

Features, Limitations, Gotcha

  • available in CommonJS and ES6 modules
    • CJS: var WildTrie = require('wild-trie')
    • ES modules: import WildTrie from 'wild-trie'
  • wildcard and key equality based on the "SameValueZero" algorithms (same as Map)

API

new WildTrie(options=defaults): Trie

  • .path: Array - the chain of keys to the leaf
  • .keys: Array - the list of child keys
  • .size: number - the number of entries in the trie
  • .add(path:any): Trie
  • .get(path:any): Trie
  • .all(path:any): Array<Trie>
  • .del(path:any): boolean
  • .clear(): undefined

License

MIT © Hugo Villeneuve