Matching on a string

kirk123 has asked for the wisdom of the Perl Monks concerning the following question:

Hi I am reading a text file which contain the following string: "\\domca-prn01\DH4-2139-HP4" I need to verify that the string I am reading in has "\\" follow by either characters or numbers then "\" then either characters or numbers . I try this as: if ( $string =~ /\\\\.*\\.*/) { print"match\n"; } But it did not work. thanks in advance.

Comment on Matching on a string

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Re: Matching on a string by diotalevi (Canon) on Jul 15, 2003 at 22:52 UTC
Easy enough: `if ( $string =~ /\\\\[^\\]+\\[^\\]/) { print "match\n"; }`. This says to have two backslashes, one or more things that aren't backslashes, another backslash and then something that isn't a backslash. You may want to check out death to dot star.	[reply] [d/l]
Re: Matching on a string by the pusher robot (Monk) on Jul 15, 2003 at 22:55 UTC
The following works for me: `my $string = '\\\\domca-prn01\DH4-2139-HP4'; if ( $string =~ /\\\\.\\./) { print"match\n"; }` [download] Note that I had to double the backslashes in the string, because the first one was escaping the second. You also probably want to use a character class (e.g., `[\w-]+`) or at least `[^\\]+` instead of `.*`.	[reply] [d/l] [select]