Crate suff_collections

no_std support

Suffix Array

Implementation of the suffix array construction of which is performed in linear time

Examples

use suff_collections::{array::*, tree::*, lcp::*};

// let word = "Some word";
let word: &str = "Some word\0";
let find: &str = "word";

// construct suffix array
// let sa = SuffixArray::<usize>::new_stack(word);
// let sa = SuffixArray::<u8>::new(word);
// let sa = SuffixArray::<u16>::new(word);
// let sa = SuffixArray::<u32>::new(word);
let sa = SuffixArray::<usize>::new(word);

// construct lcp
// lcp[i] = max_pref(sa[i], sa[i - 1]) && lcp.len() == sa.len()
let lcp: LCP<usize> = sa.lcp();

// finds the entry position of the line 'find' in 'word'
// O(|find| * log(|word|))
let res: Option<usize> = sa.find(find);

// finds all the entry position of the line 'find' in 'word'
// O(|find| * log(|word|))
let res_all: &[usize] = sa.find_all(find);

// finds the entry position of the line 'find' in 'word'
// O(|word|)
let res: Option<usize> = sa.find_big(&sa.lcp(), find);

// finds all the entry position of the line 'find' in 'word'
// O(|word|)
let res_all: &[usize] = sa.find_all_big(&sa.lcp(), find);

// convert suffix array to suffix tree
let st = SuffixTree::from(sa);

Suffix Tree

Implementation of the suffix tree construction of which is performed in linear time

Examples

use suff_collections::{array::*, tree::*, lcp::*};

// let word = "Some word";
let word: &str = "Some word\0";
let find: &str = "word";

// construct suffix tree
let st: SuffixTree = SuffixTree::new(word);

// finds the entry position of the line 'find' in 'word'
let res: Option<usize> = st.find(find);

// construct lcp
// lcp[i] = max_pref(sa[i], sa[i - 1]) && lcp.len() == sa.len()
// let lcp: LCP<u8> = st.lcp::<u8>();
// let lcp: LCP<u16> = st.lcp::<u16>();
// let lcp: LCP<u32> = st.lcp::<u32>();
let lcp: LCP<usize> = st.lcp::<usize>();

// convert suffix tree to suffix array
// let sa = SuffixArray::<u8>::from(st);
// let sa = SuffixArray::<u16>::from(st);
// let sa = SuffixArray::<u32>::from(st);
let sa = SuffixArray::<usize>::from(st);

Modules

array

Implementation of the suffix array construction of which is performed in linear time

lcp

lcp[i] = max_pref(sa[i], sa[i - 1]) and lcp.len() == sa.len()

tree

Implementation of the suffix tree construction of which is performed in linear time