Regex to match specific functions and their arguments in files

Question

I\'m working on a gettext javascript parser and I\'m stuck on the parsing regex.

I need to catch every argument passed to a specific method call _n( and

Answer 1

One bit of code (you can test this PHP code at http://writecodeonline.com/php/ to check):

$string = '_("foo")
_n("bar", "baz", 42); 
_n(domain, "bux", var);
_( "one (optional)" );
apples === 0 ? _( "No apples" ) : _n("%1 apple", "%1 apples", apples)';

preg_match_all('/(?<=(_\()|(_n\())[\w", ()%]+(?=\))/i', $string, $matches);

foreach($matches[0] as $test){
    $opArr = explode(',', $test);
    foreach($opArr as $test2){
       echo trim($test2) . "\n";
       }
    }

you can see the initial pattern and how it works here: http://regex101.com/r/fR7eU2/1

Output is:

"foo"
"bar"
"baz"
42
domain
"bux"
var
"one (optional)"
"No apples"
"%1 apple"
"%1 apples"
apples