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.
- 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.