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convert gen-cat.pl to nqp and use it
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| #!/usr/bin/env nqp | ||
| # Copyright (C) 2014, The Perl Foundation | ||
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| sub MAIN(*@ARGS) { | ||
| my $program := @ARGS.shift; | ||
| my $backend := @ARGS.shift; | ||
| say("# This file automatically generated by $program\n"); | ||
| for @ARGS -> $file { | ||
| say("# From $file\n"); | ||
| my $fh := open($file, :r); | ||
| my $in_cond := 0; | ||
| my $in_omit := 0; | ||
| while nqp::readlinefh($fh) -> $_ { | ||
| if my $x := $_ ~~ / ^ '#?if' \s+ ('!')? \s* (\w+) \s* $ / { | ||
| nqp::die("Nested conditionals not supported") if $in_cond; | ||
| $in_cond := 1; | ||
| $in_omit := $x[0] && $x[1] eq $backend || !$x[0] && $x[1] ne $backend; | ||
| } elsif $_ ~~ /^ '#?endif' / { | ||
| $in_cond := 0; | ||
| $in_omit := 0; | ||
| } elsif !$in_omit { | ||
| print($_) unless $_ ~~ /^ '# ' \w /; | ||
| } | ||
| } | ||
| close($fh); | ||
| } | ||
| say("\n# vim: set ft=perl6 nomodifiable :"); | ||
| } | ||
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| # vim: set ft=perl6 : |