merl
merl
Module
merl
Module summary
Metaprogramming in Erlang.
Description
Metaprogramming in Erlang. Merl is a more user friendly interface to the erl_syntax
module, making it easy both to build new ASTs from scratch and to match and decompose existing ASTs. For details that are outside the scope of Merl itself, please see the documentation of erl_syntax
.
Quick start
To enable the full power of Merl, your module needs to include the Merl header file:
-include_lib("syntax_tools/include/merl.hrl").
Then, you can use the ?Q(Text)
macros in your code to create ASTs or match on existing ASTs. For example:
Tuple = ?Q("{foo, 42}"), ?Q(