in reply to Re^2: Making a regex case insensitive
in thread Making a regex case insensitive

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Re^4: Making a regex case insensitive
by ikegami (Patriarch) on Mar 06, 2007 at 18:45 UTC
    Nothing is modified, not even letters. Case is preserved. 
    >perl -le "'aA' =~ /(.*)/i && print $1
aA

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    Only the matching is affected. /i causes lower- and upper-case letters to match lower- and upper-case versions of itself.

    Maybe you were thinking of 

    >perl -le "lc('aA') =~ /(.*)/ && print $1
aa

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