NAME
Language::Expr::Compiler::PHP - Compile Language::Expr expression to PHP
VERSION
version 0.16
SYNOPSIS
my
$phpc
= Language::Expr::Compiler::PHP->new;
$phpc
->php(
'[1, 2, 3])'
);
# prints: array(1, 2, 3)
# map Expr function to PHP function
$phpc
->func_mapping->{
uc
} =
'strtoupper'
;
$phpc
->php(
q{uc("party like it's ") . ceil(1998.9)}
);
# prints: strtoupper("party like it's " + ceil(1998.9)
DESCRIPTION
Compiles Language::Expr expression to PHP code. Some notes:
PHP version
This compiler emits PHP 5.3 code (it uses lambda functions).
Currently to test emitted JavaScript code, we use PHP command line interpreter as the PHP and PHP::Interpreter modules are still not up to par.
PHP-ness
The emitted PHP code will follow PHP's weak typing, coercion rules, notions of true/false (which, fortunately, mimics closely that of Perl).
Variables by default simply use PHP variables.
E.g. $a becomes $a, and so on. Be careful not to make variables which are invalid in PHP, e.g. $.. or ${foo/bar}.
You can customize this behaviour by subclassing rule_var() or by providing a hook_var() (see documentation in Language::Expr::Compiler::Base).
Functions by default simply use PHP functions.
foo() becomes foo(). Except those mentioned in func_mapping (e.g. uc() becomes strtoupper() if func_mapping->{uc} is 'strtoupper').
You can customize this behaviour by subclassing rule_func() or by providing a hook_func() (see documentation in Language::Expr::Compiler::Base).
METHODS
php($expr) => $php_code
Convert Language::Expr expression into PHP code. Dies if there is syntax error in expression.
AUTHOR
Steven Haryanto <stevenharyanto@gmail.com>
COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Steven Haryanto.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.