lbuilder is a Lua library to aid creating and building patterns. It uses operator overloading based on Lpeg.
| Unions | Use |
|---|---|
| lbuilder.P | Creates a new pattern |
| Particles | Use |
|---|---|
| lbuilder.c | Creates a new capture |
| lbuilder.s | Creates a new character set |
| lbuilder.l | Creates a new literal |
| Operators | Use |
|---|---|
| P + P | Combines two patterns |
| P .. P | Combines two patterns with brackets |
| p + p | Combines two particles |
| -s | Negates a set |
| s/"*" | Equivalent to * |
| s/"+" | Equivalent to + |
| s/"-" | Equivalent to - |
| s/"?" | Equivalent to ? |
| p/n | Repeats the particle n times |
| p/-n | Repeats the particle n-1 times and negates the nth particle |
| #p | Creates a pattern from a particle |
| P % str | Tests a pattern |
| P * str | Matches a pattern and returns captures |
| P /str/rep/n | Replaces the pattern in a string n times and returns str |
| P /str/fn/n | Passes a function to the replace and replaces n times and returns str |
| P /str/rep/bool | Replaces the pattern in a string if bool and returns str |
| P /str/fn/bool | Passes a function to the replace and replaces if bool, returns str |
This project is released to the public domain
You can find the documentation at the wiki
You can install this library using LuaRocks
$ sudo luarocks install lbuilder
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