Re: Comparing strings

You want to make sure that the whole string matches and not just a substring. You can use the "anchors" ^ (start of string) and $ (end of string) for that:

if($a[$i] =~ /^$b[$j]$/i)
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But if you want to compare the whole string, a direct comparison of the upper case variants is more straightforward:

if(uc $a[$i] eq uc $b[$j]) {
...
}
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Re^2: Comparing strings by ikegami (Patriarch) on Jul 24, 2006 at 15:06 UTC
Does @b contain regexp or strings? If it contains regexps, your second snippet doesn't work. If it contains strings, your first snippet is broken. Sounds like @b contains strings, so the solutions would be `if ($a[$i] =~ /^\Q$b[$j]\E\z/i)` [download] and (the much faster) `if (uc $a[$i] eq uc $b[$j])` [download] You can only omit the quoting provided by `\Q...\E` is you are sure @b doesn't contains any meta characters. Read more... If @b contains regexps (302 Bytes)	[reply] [d/l] [select]

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Re^2: Comparing strings
by ikegami (Patriarch) on Jul 24, 2006 at 15:06 UTC

Does @b contain regexp or strings? If it contains regexps, your second snippet doesn't work. If it contains strings, your first snippet is broken. Sounds like @b contains strings, so the solutions would be

if ($a[$i] =~ /^\Q$b[$j]\E\z/i)
[download]

and (the much faster)

if (uc $a[$i] eq uc $b[$j])
[download]

You can only omit the quoting provided by \Q...\E is you are sure @b doesn't contains any meta characters.

Read more... If @b contains regexps (302 Bytes)

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