aho_corasick

基于Aho Corasick 算法实现的Erlang版本敏感词匹配库，通过定义不同的ModName可以同时存在多个版本的敏感词库。

如何使用 How to use

$ rebar3 shell
Erlang/OTP 23 [erts-11.1.4] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1]

Eshell V11.1.4  (abort with ^G)
1> ModName = acs.
acs
2> aho_corasick:gen_acs_by_list([<<"a">>, <<"ab">>, <<"bab">>, <<"bc">>, <<"bca">>, <<"c">>, <<"caa">>], ModName).
ok
3> Content = <<"abccab">>.
<<"abccab">>
4> aho_corasick:matches(ModName, Content).
[{4,2},{4,1},{3,1},{2,1},{1,2},{0,2},{0,1}]
5> aho_corasick:is_pattern(ModName, Content).
true
6> aho_corasick:replace(ModName, Content).
<<"*****b">>
7> io:format("~ts~n",[aho_corasick:replace(ModName, Content, <<"爱国"/utf8>>)]).  
爱国爱国爱国爱国爱国b
ok

如何调试 How to debug

编辑rebar.config文件，添加如下内容，再次执行aho_corasick:gen_acs_by_list/2生成源码文件

{erl_opts, [
    {d, 'DEBUG'}
]}.

版本要求 OTP Version

>= OTP 17.0.0