Add built local::lib

[catagits/Gitalist.git] / local-lib5 / lib / perl5 / Algorithm / diff.pl

diff --git a/local-lib5/lib/perl5/Algorithm/diff.pl b/local-lib5/lib/perl5/Algorithm/diff.pl
new file mode 100644 (file)
index 0000000..9bddb15
--- /dev/null
+++ b/local-lib5/lib/perl5/Algorithm/diff.pl
@@ -0,0 +1,47 @@
+#!/usr/bin/perl
+#
+# `Diff' program in Perl
+# Copyright 1998 M-J. Dominus. (mjd-perl-diff@plover.com)
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the same terms as Perl itself.
+#
+
+use Algorithm::Diff qw(diff);
+
+bag("Usage: $0 oldfile newfile") unless @ARGV == 2;
+
+my ($file1, $file2) = @ARGV;
+
+# -f $file1 or bag("$file1: not a regular file");
+# -f $file2 or bag("$file2: not a regular file");
+
+-T $file1 or bag("$file1: binary");
+-T $file2 or bag("$file2: binary");
+
+open (F1, $file1) or bag("Couldn't open $file1: $!");
+open (F2, $file2) or bag("Couldn't open $file2: $!");
+chomp(@f1 = <F1>);
+close F1;
+chomp(@f2 = <F2>);
+close F2;
+
+$diffs = diff(\@f1, \@f2);
+exit 0 unless @$diffs;
+
+foreach $chunk (@$diffs) {
+  
+  foreach $line (@$chunk) {
+    my ($sign, $lineno, $text) = @$line;
+    printf "%4d$sign %s\n", $lineno+1, $text;
+  }
+  print "--------\n";
+}
+exit 1;
+
+sub bag {
+  my $msg = shift;
+  $msg .= "\n";
+  warn $msg;
+  exit 2;
+}