Regular Expression required.

anand_perl has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monks,

I want to match a regualar expression pattern.

The following array contains the following elements

@xmlfiles =( rtl_genoa_cet_300color-46-13-03.BIN.xml,rtl_genoa_cet_300color-46-13-03.BIN-summary.xml,rtl_genoa_cet_300color-47-13-04.BIN.xml, rtl_genoa_cet_300color-47-13-04.BIN-summary.xml,rtl_genoa_cet_300color.xml,rtl_genoa_cet_600color-1-08-01.BIN.xml,rtl_genoa_cet_600color-1-08-01.BIN-summ ary.xml,rtl_genoa_cet_600color-49-13-06.BIN.xml,rtl_genoa_cet_600color-49-13-06.BIN-summary.xml,rtl_genoa_cet_600color.xml );

I want a regular expression such that it matches only the files like rtl_genoa_cet_300color-46-13-03.BIN.xml,rtl_genoa_cet_300color-47-13-04.BIN.xml etc.

The expression should not match files like rtl_genoa_cet_300color-46-13-03.BIN-summary.xml,rtl_genoa_cet_300color-47-13-04.BIN-summary.xml,

rtl_genoa_cet_300color.xml,rtl_genoa_cet_600color.xml

Can any one help me on this?

Thanks in advance....

Regards

Anand

Comment on Regular Expression required.

Replies are listed 'Best First'.
Re: Regular Expression required. by grizzley (Chaplain) on Sep 18, 2008 at 11:32 UTC
Can you specify criteria, e.g.: match only names without 'summary' word and/or match only names with 'dd-dd-dd' (d=digit) part and/or match only names with '300color' string ...	[reply]
Re^2: Regular Expression required. by anand_perl (Novice) on Sep 18, 2008 at 12:04 UTC
I want to match the strings without 'summary' word and the strings like rtl_genoa_cet_300color-46-13-03.BIN.xml,rtl_genoa_cet_300color-47-13-04.BIN.xml The strings like rtl_genoa_cet_300color.xml should not be matched	[reply]
Re^3: Regular Expression required. by grizzley (Chaplain) on Sep 18, 2008 at 12:25 UTC
Once again: could you specify criteria? Maybe say which ones below should be matched? I tried to change one thing in every string: stl_genoa_cet_300color-46-13-03.BIN.xml (1st block changed) rtl_genoi_cet_300color-46-13-03.BIN.xml (2nd block changed) rtl_genoa_cit_300color-46-13-03.BIN.xml (3rd block changed) rtl_genoacet_300color-46-13-03.BIN.xml (no 3rd block) rtl_genoa_cet_400color-46-13-03.BIN.xml (4th block, number changed) rtl_genoa_cet_300bw-46-13-03.BIN.xml (4th block, type changed) rtl_genoa_cet_300color.BIN.xml (no dd-dd-dd block) rtl_genoa_cet_300color-99-99-99.BIN.xml (dd-dd-dd block changed) rtl_genoa_cet_300color-46-13-03.USR.xml (name after '.' changed) rtl_genoa_cet_300color-46-13-03BIN.xml (only one '.' in string) rtl_genoa_cet_300color-46-13-03.BINxml (no '.'s in string) rtl_genoa_cet_300color-46-13-03.BIN.png (last block (extension) changed) There are many more possibilities, but I hope you get the point. I (we) have no idea where the matched string must be exactly the same. Tell us.	[reply]
Re^3: Regular Expression required. by psini (Deacon) on Sep 18, 2008 at 12:16 UTC
I think that `/^rtl_genoa_cet_300color-4\d-13-0\d\.BIN\.xml$/` will do what you asked. Probably it doesn't do what you meant... Updated. This is shorter... Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."	[reply] [d/l]
Re: Regular Expression required. by AnomalousMonk (Archbishop) on Sep 18, 2008 at 15:07 UTC
My guess about the regex that might be needed for this (see the very pertinent comments of others about the need to specify a pattern precisely) would be something like: >perl -wMstrict -le "my $head = qr{ rtl_genoa_cet_300color- }xms; my $tail = qr{ \.BIN\.xml }xms; my $hyphenated_numbers = qr{ \d\d - \d\d - \d\d }xms; my $filename = qr{ \A $head $hyphenated_numbers $tail \z }xms; print qq{\noutput:}; for my $string (@ARGV) { print $string if $string =~ $filename; } " rtl_genoa_cet_300color-46-13-03.BIN.xml rtl_genoa_cet_300color-46-13-03.BIN-summary.xml rtl_genoa_cet_300color-47-13-04.BIN.xml rtl_genoa_cet_300color-47-13-04.BIN-summary.xml rtl_genoa_cet_300color.xml rtl_genoa_cet_600color-1-08-01.BIN.xml rtl_genoa_cet_600color-1-08-01.BIN-summary.xml rtl_genoa_cet_600color-49-13-06.BIN.xml rtl_genoa_cet_600color-49-13-06.BIN-summary.xml rtl_genoa_cet_600color.xml output: rtl_genoa_cet_300color-46-13-03.BIN.xml rtl_genoa_cet_300color-47-13-04.BIN.xml [download]	[reply] [d/l]
Re: Regular Expression required. by svenXY (Deacon) on Sep 18, 2008 at 11:34 UTC
... or only BIN ... Regards, svenXY	[reply]