Re: Finding a variable string within a variable string.

It appears that my question wasn't as simple as I thought it might be. That maybe because I didn't express myself clearly so I'll have another go

I haven't provided samples because

I didn't want to risk providing anything that may be considered proprietry
I didn't beleive it was necessary
I was after a generic answer (I would like to use this on different jobs and in each job the checkpoint is constructed differently)

I know that m/string/ will tell me if "string" is in $_, and I assume m/$string/ will tell me if the string stored in $string is in $_, but what I need to know is the syntax for finding out if $string1 contains $string2 anywhere (something like C's strstr function). I don't need to know where in $string1 $string2 was found, nor do I want $string1 changed unless I find $string2 within it, I only need to know if it was found.

If I still haven't explained myself properly, or more information is needed, I will try to come up with examples that don't contain propriety information.

Moriarty

Comment on Re: Finding a variable string within a variable string.

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Re^2: Finding a variable string within a variable string. by Eimi Metamorphoumai (Deacon) on Dec 14, 2004 at 21:13 UTC
You can either use regexps, or `index` `if ($string1 =~ /\Q$string2\E/){...} if (index($string1, $string2) != -1){...}` [download] The \Q and \E are to quote metacharacters (so if $string2 is "f.o", you don't end up matching on "foo").	[reply] [d/l] [select]
Re^3: Finding a variable string within a variable string. by Moriarty (Abbot) on Dec 14, 2004 at 22:00 UTC
Thank you, I had an idea that it would be that simple but I was being a bit thick due to the lateness in the day. After working on these problems all day, the brain gets a little numb. Moriarty	[reply]