Module ranagrams::util

Structs

CharCount	The fundamental representation of the undigested bit of a phrase in anagram calculation, a CharCount keeps track of the characters still looking for a foster word. To accelerate processing, they also cache the first character offset with a non-zero count, the last such offset, the sum of their counts, and a checksum sufficient for hashing and identification.
CharSet	A set-ish representation of the characters in a CharCount. A CharSet is a record of the types of characters present without regard to their count.
ToDo	The representation of a partially processed phrase working its way through anagram discovery. ToDos are a linked list keeping track of words already found plus a CharCount keeping track of the characters yet to be processed.
Translator	A Translator converts between alphabetic and numeric representations of words. For anagram calculation words are treated as pure numeric sequences. The translator converts back and forth and also keeps track of character frequences in order to produce a dense trie representation of a word list.

Functions

normalize

A function that strips away characters of no interest -- spaces and punctuation characters, generally -- and removes unimportant distinctions like case. If one wishes to convert this code to a new alphabet this is likely the only things that needs fixing.