Golang implementation of Aho-Corasick for rapid substring matching on either byte strings or ASCII strings.
This is based on the excellent library cloudflare/ahocorasick (BSD License). The fork/changes were needed for a specific application usages that are incomptabile with the original library. Some other minor optimizations around memory and setup were also done.
Effective May 17th 2021 the default branch will change from master to main. Run the following commands to update a local clone:
git branch -m master main
git fetch origin
git branch -u origin/main main
git remote set-head origin -a
- FindAllString
m := ac.MustCompileString([]string{"Superman", "uperman", "perman", "erman"})
matches := m.FindAllString("The Man Of Steel: Superman")
fmt.Println(matches)
Output:
[Superman uperman perman erman]
- MatchString
m := ac.MustCompileString([]string{"Superman", "uperman", "perman", "erman"})
contains := m.MatchString("The Man Of Steel: Superman")
fmt.Println(contains)
Output:
true
The ac/acascii package assumes the dictionary is all ASCII characters (1-127) without NULL bytes. This results in during setup:
- 50% less memory allocations
- 50% less memory users
- 50% less CPU time
as compared to the plain ac package.
- Support for ASCII case-insensitive matching.