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diffnew.pl  view on Meta::CPAN

my $File_Length_Difference = 0;

#ed diff outputs hunks *backwards*, so we need to save hunks when doing ed diff
my @Ed_Hunks = ();
########################

my $usage = << "ENDUSAGE";
Usage: $0 [{-c | -C lines -e | -f | -u | -U lines |-q | -i | -w}] oldfile newfile
    -c do a context diff with 3 lines of context
    -C do a context diff with 'lines' lines of context (implies -c)
    -e create a script for the ed editor to change oldfile to newfile
    -f like -e but in reverse order
    -u do a unified diff with 3 lines of context
    -U do a unified diff with 'lines' lines of context (implies -u)
    -q report only whether or not the files differ
    -i ignore differences in Upper/lower-case
    -w ignore differences in white-space (space and TAB characters)

By default it will do an "old-style" diff, with output like UNIX diff
ENDUSAGE