# Matcher Rust Implement C FFI bindings
## Overview
Matcher is a high-performance matching library implemented in Rust, providing C FFI bindings for seamless integration with other programming languages. This library is designed for various matching tasks, including simple and complex match types with normalization and deletion capabilities.
## Installation
### Build from source
```shell
git clone https://github.com/Lips7/Matcher.git
```
Then you should find the `libmatcher_c.so`/`libmatcher_c.dylib`/`matcher_c.dll` in the `target/release` directory.
### Install pre-built binary
Visit the [release page](https://github.com/Lips7/Matcher/releases) to download the pre-built binary.
## Python usage example
```Python
import msgspec
from cffi import FFI
from extention_types import MatchTableType, SimpleMatchType, MatchTable
## define ffi
ffi = FFI()
ffi.cdef(open("./matcher_c.h", "r", encoding="utf-8").read())
lib = ffi.dlopen("./matcher_c.so")
# init matcher
matcher = lib.init_matcher(
msgspec.msgpack.encode({
1: [
MatchTable(
table_id=1,
match_table_type=MatchTableType.Simple,
simple_match_type=SimpleMatchType.MatchDeleteNormalize,
word_list=["hello,world", "hello", "world"],
exemption_simple_match_type=SimpleMatchType.MatchNone,
exemption_word_list=[],
)
]
})
)
# check is match
lib.matcher_is_match(matcher, "hello".encode("utf-8")) # True
# match word, output json string
res = lib.matcher_word_match(matcher, "hello,world".encode("utf-8")) # {1:[{"table_id":1,"word":"hello"},{"table_id":1,"word":"hello,world"},{"table_id":1,"word":"world"}]"}
print(ffi.string(res).decode("utf-8")) #
lib.drop_string(res)
# drop matcher
lib.drop_matcher(matcher)
# init simple matcher
simple_matcher = lib.init_simple_matcher(
msgspec.msgpack.encode(({
SimpleMatchType.MatchFanjianDeleteNormalize | SimpleMatchType.MatchPinYinChar: {
1: "妳好,世界",
2: "hello"
}
}))
)
# check is match
lib.simple_matcher_is_match(simple_matcher, "你好世界".encode("utf-8")) # True
# match word, output json string
res = lib.simple_matcher_process(simple_matcher, "nihaoshijie!hello!world!".encode("utf-8")) # [{"word_id":1,"word":"妳好,世界"},{"word_id":2,"word":"hello"}]
print(ffi.string(res).decode("utf-8"))
lib.drop_string(res)
# drop simple matcher
lib.drop_simple_matcher(simple_matcher)
```
## Important Notes
1. The [extension_types.py](./extension_types.py) is not required, you can use the dynamic library directly.
2. Always call `drop_matcher`, `drop_simple_matcher`, and `drop_string` after initializing and processing to avoid memory leaks.