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Postings from July 2009
2009/7/30 David Nicol <davidnicol@gmail.com>: > On Thu, Jul 30, 2009 at 1:19 AM, Rafael > Garcia-Suarez<rgarciasuarez@gmail.com> wrote: >> 2009/7/30 David Nicol <davidnicol@gmail.com>: > >>> it's already a synbtax error when it makes no sense. What's the harm? >> >> No it's not : >> >> $ perl -e 'goto print' >> Can't find label 1 at -e line 1. > > $ perl -le '1: $x++ > 3 and die 1; goto print $x' > syntax error at -e line 1, near "1:" > Execution of -e aborted due to compilation errors. > > is there a way to create "1" as a label? perldoc perlsyn says labels > "consist of an identifer followed by a colon" but the word > "identifier" does not appear again in that document. > > Allowing numeric labels would make Perl more friendly to FORTRAN programmers... Or BASIC. At best I could write a source filter for that. Colon-less numeric labels at the beginning of lines. And allow uppercase GOTO. 10 say "this is perl, sort of\n"; 20 GOTO 10;Thread Previous