PCRE regular expression functions (rex)

The functionality of the PCRE (Perl Compatible Regular Expression) library is available to Lua scripts.

This is exactly the same regular expression matching that is done in triggers and alias matching.

First you create (compile) a regular expression into a rex object using rex.new.

Once the object is compiled you can repeatedly match it against target strings using re:match, re:gmatch, and re:exec (where "re" is the name of the compiled object).

Lua functions

re:exec - Matches a regexp to a string, returning offsets
re:gmatch - Matches a regexp to a string, applying a function
re:match - Matches a regexp to a string
rex.flags - Returns a table of PCRE flags
rex.new - Compiles a regular expression

Topics

Lua base functions
Lua bc (big number) functions
Lua bit manipulation functions
Lua coroutine functions
Lua debug functions
Lua io functions
Lua LPEG library
Lua math functions
Lua os functions
Lua package functions
Lua script extensions
Lua string functions
Lua syntax
Lua table functions
Lua utilities
Scripting
Scripting callbacks - plugins

(Help topic: general=lua_rex)