I am trying to extract all variables in a list from some f77 declarations. Fortran can have nasty nested levels of parenthesis which is confusing. I tried a naive split but that did not work. Here is a simple attempt. 
#!/usr/bin/perl -w
#
# Scenario: Given lines of f77 code, parse out the comma delimited var
+iables.
#
use Data::Dumper;
use Text::Balanced qw(extract_delimited extract_multiple extract_varia
+ble);
# A real application will read in f77 source, this is just a sample.
my $string = "real*8 Eparams(0:maxParam),Emvm(0:3),MyArray(row,col),Yo
+urArray(12,(j,k),m)";
#
my @fields = extract_multiple($string,
           [ sub { extract_delimited($_[0],q{\,}) } ], undef, 1);
print "Fields:",Dumper(\@fields);
exit(0);

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After I get the individual variables, with their array dimensions, I will use the information for generating new code.

In reply to f77 variable list parsing by SlugMass

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