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(gettext) Parentheses

Info Catalog (gettext) Interpolation II (gettext) Perl (gettext) Long Lines
 
 15.5.18.7 When To Use Parentheses
 .................................
 
 In Perl, parentheses around function arguments are mostly optional.
 `xgettext' will always assume that all recognized keywords (except for
 hashes and hash references) are names of properly prototyped functions,
 and will (hopefully) only require parentheses where Perl itself
 requires them.  All constructs in the following example are therefore
 ok to use:
 
      print gettext ("Hello World!\n");
      print gettext "Hello World!\n";
      print dgettext ($package => "Hello World!\n");
      print dgettext $package, "Hello World!\n";
 
      # The "fat comma" => turns the left-hand side argument into a
      # single-quoted string!
      print dgettext smellovision => "Hello World!\n";
 
      # The following assignment only works with prototyped functions.
      # Otherwise, the functions will act as "greedy" list operators and
      # eat up all following arguments.
      my $anonymous_hash = {
         planet => gettext "earth",
         cakes => ngettext "one cake", "several cakes", $n,
         still => $works,
      };
      # The same without fat comma:
      my $other_hash = {
         'planet', gettext "earth",
         'cakes', ngettext "one cake", "several cakes", $n,
         'still', $works,
      };
 
      # Parentheses are only significant for the first argument.
      print dngettext 'package', ("one cake", "several cakes", $n), $discarded;
 
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