sourcecode
mikfire
<code>
#!/usr/bin/perl -w
use strict;
#------------
# This code is provided as is. There is no implied warrenty
# and it may do anything from nothing to causing the end
# of the world as we know it. I take no responsibilty for
# and such cause.
#
# It is under the Artistic license, but if you use it and
# fix it, I sure would appreciate the patch.
#
# Mik Firestone, Aug 1 2000
#
# mik@speed.stdio.com
#-------------
die "$0 <source> <target> ..." unless @ARGV > 1;
my %keyword = ();
my ( $source, @targets ) = @ARGV;
my $package = '';
#---
# Try to extract the keywords, precompile the regex and store
#---
open SRC, $source or die "Couldn't open $source : $!";
while( <SRC> ) {
$package = $1 if ( ! $package && /^package\s+(.+);/ );
next unless ( /^sub\s+(.+){\s*$/ );
my $name;
$name = $1;
next if ( substr($name,0,1) eq "_" );
$name =~ s/\s+$//;
$keyword{$name} = qr/([\w:{}]+)->$name/;
}
close SRC;
for my $file ( @targets ) {
my ( $line );
open FILE, $file or die "Couldn't open $file : $!";
LINE:
while( $line = <FILE> ) {
next LINE if ( $line =~ /^\s*#/ || $line =~ /^\s*$/ );
last LINE if $line =~ /__END__/;
for ( keys %keyword ) {
my $regex = $keyword{$_};
if ( $line =~ /$regex/ ) {
my $starts_at = $.;
my $lpack = $1 || '';
next LINE if ( $file eq $source ) && ( $line =~ /^sub/ );
next LINE if ( $line =~ /Usage/ );
next LINE if ( $lpack =~ /::/ && $lpack ne $package );
while( $line !~ /;/ && ! eof(FILE) ) {
$line .= <FILE>;
next LINE if $line =~ /^EOF/m;
}
$line =~ s/^\s*//;
printf "%s (%d) %s", uc $file, $starts_at, $line;
next LINE;
}
}
}
#LINE
close FILE;
}
</code>
A down and dirty little script that reads a file, looking
for subroutine definitions. It extracts these and then
parses through a whole bunch of other files looking
for calls to those functions. It isn't perfect, but
it works pretty well.
<p>
<code>
Usage:
list_call source file [ ...]
</code>
where source is the file from which to extract the calls
and file is the file to be searched.
text processing
Mik Firestone
mik@speed.stdio.com
This code is provided as is. If it causes
the end of the world as we know it,
it is not