Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

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";

...produces...

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)

Dave


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

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others imbibing at the Monastery: (7)
    As of 2014-07-30 10:29 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      My favorite superfluous repetitious redundant duplicative phrase is:









      Results (230 votes), past polls