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It's not entirely clear what you're trying to accomplish (or demonstrate) with that code snippet. It is using a variable that is never assigned a value ($little), and it never even uses the function ucfirst. ...and there's no function called 'lsfirst' (at least not as part of core Perl).

But I can assure you that the \L, \U, \l, and \u metacharacters do work, as do their function based cousins, lc, uc, lcfirst, and ucfirst:

my $string_upper = "BAR"; my $string_lower = "bar"; print "Testing metacharacter operations.\n"; print "\\L: [$string_upper] => [\L$string_upper]\n"; print "\\U: [$string_lower] => [\U$string_lower]\n"; print "\\l: [$string_upper] => [\l$string_upper]\n"; print "\\u: [$string_lower] => [\u$string_lower]\n"; print "\nTesting function operations.\n"; print " lc($string_upper) => (" , lc $string_upper, ")\n"; print " uc($string_lower) => (" , uc $string_lower, ")\n"; print "lcfirst($string_upper) => (" , lcfirst $string_upper, ")\n"; print "ucfirst($string_lower) => (" , ucfirst $string_lower, ")\n";


Testing metacharacter operations. \L: [BAR] => [bar] \U: [bar] => [BAR] \l: [BAR] => [bAR] \u: [bar] => [Bar] Testing function operations. lc(BAR) => (bar) uc(bar) => (BAR) lcfirst(BAR) => (bAR) ucfirst(bar) => (Bar)


In reply to Re: lcfirst and ucfirst not working by davido
in thread lcfirst and ucfirst not working by laksh

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