R: Find the prefix matches in a trie

prefix_match {triebeard} | R Documentation

## Find the prefix matches in a trie

### Description

`prefix_match` accepts a trie and a character vector and returns the values associated with any key that has a particular character vector entry as a prefix (see the examples).

### Usage

    prefix_match(trie, to_match)

### Arguments

`trie` | a trie object, created with `trie`
`to_match` | a character vector containing the strings to check against the trie's keys.

### Value

a list, the length of `to_match`, with each entry containing any trie values where the `to_match` element was a prefix of the associated key. In the case that nothing was found, the entry will contain `NA`.

### See Also

`longest_match` and `greedy_match` for longest and greedy matching, respectively.

### Examples

    trie <- trie(keys = c("afford", "affair", "available", "binary", "bind", "blind"),
                       values = c("afford", "affair", "available", "binary", "bind", "blind"))
    prefix_match(trie, "aff")

[Package triebeard version 0.3.0 Index]