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in reply to How to split

Please help me in this... Say my code is as follows:...

FWIW, when we talk about "code" we usually mean "source code" as in "perl program", not about the data

Here is a start, run with it 

#!/usr/bin/perl --
use strict; use warnings;
my $blah = '    VAR DS 0D
        DC    AL1(045),AL2(286),AL2(117),AL2(290)';

my ( $top, $bottom ) = split /[\r\n]+/, $blah;
print "$top\n";

my( $prefix, @biscuits ) = grep length, split /[\s,]+/, $bottom;

for my $tack ( @biscuits ){
    print "$prefix $tack\n";
}
__END__
    VAR DS 0D
DC AL1(045)
DC AL2(286)
DC AL2(117)
DC AL2(290)

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Re^2: How to split
by Anonymous Monk on Sep 13, 2012 at 07:58 UTC

    Adventures in regular expressions 

    #!/usr/bin/perl --
use strict; use warnings;
use Data::Dump;

my $blah = '    VAR DS 0D
        DC    AL1(045),AL2(286),AL2(117),AL2(290)';

my ( $top, $bottom ) = split /[\r\n]+/, $blah;
print "$top\n";

#~ my( $prefix, @biscuits ) = grep length, split /[\s,]+/, $bottom;
my( $prefix, @biscuits ) = split /(?:(?<!^)\s+)|,/, $bottom;

dd \$prefix, \@biscuits ;

for my $tack ( @biscuits ){
    print "$prefix $tack\n";
}
__END__
$ perl shineon001
    VAR DS 0D
(\" ", ["DC", "AL1(045)", "AL2(286)", "AL2(117)", "AL2(290)"])
  DC
  AL1(045)
  AL2(286)
  AL2(117)
  AL2(290)

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[d/l]

      Adventures in regular expressions, part 2 

      #!/usr/bin/perl --
use strict; use warnings;
use Data::Dump;

my $blah = '    VAR DS 0D
        DC    AL1(045),AL2(286),AL2(117),AL2(290)';

my ( $top, $bottom ) = split /[\r\n]+/, $blah;
print "$top\n";

#~ my( $prefix, @biscuits ) = grep length, split /[\s,]+/, $bottom;
#~ my( $prefix, @biscuits ) = split /(?:(?<!^)\s+)|,/, $bottom;
my( $prefix, @biscuits ) = split /(?:(?<!^)\b\s+)|,/, $bottom;

dd \$prefix, \@biscuits ;

for my $tack ( @biscuits ){
    print "$prefix $tack\n";
}
__END__
$ perl shineon002
    VAR DS 0D
(
  \"        DC",
  ["AL1(045)", "AL2(286)", "AL2(117)", "AL2(290)"],
)
        DC AL1(045)
        DC AL2(286)
        DC AL2(117)
        DC AL2(290)

      [download]
[reply]
[d/l]

        Adventures in regular expressions, part 4 

        #!/usr/bin/perl --
use strict; use warnings;
use Data::Dump;

my $blah = '    VAR DS 0D
        DC    AL1(045),AL2(286),AL2(117),AL2(290)';

my ( $top, $bottom ) = split /[\r\n]+/, $blah;
print "$top\n";

#~ my( $prefix, @biscuits ) = grep length, split /[\s,]+/, $bottom;
#~ my( $prefix, @biscuits ) = split /(?:(?<!^)\s+)|,/, $bottom;
#~ my( $prefix, @biscuits ) = split /(?:(?<!^)\b\s+)|,/, $bottom;
#~ my( $prefix, @biscuits ) = split /(?:(?<!\A)\b\s+)|,/, $bottom;
my( $prefix, @biscuits ) = $bottom =~ /(^\s+\S+)|([^\s\(]+\([^\s\)]+\)
+)/g;

dd \$prefix, \@biscuits ;

for my $tack ( @biscuits ){
    print "$prefix $tack\n";
}
__END__
$ perl shineon004
Use of uninitialized value $tack in concatenation (.) or string at shi
+neon004 line 20.
Use of uninitialized value $tack in concatenation (.) or string at shi
+neon004 line 20.
Use of uninitialized value $tack in concatenation (.) or string at shi
+neon004 line 20.
Use of uninitialized value $tack in concatenation (.) or string at shi
+neon004 line 20.
Use of uninitialized value $tack in concatenation (.) or string at shi
+neon004 line 20.
    VAR DS 0D
(
  \"        DC",
  [
    undef,
    undef,
    "AL1(045)",
    undef,
    ",AL2(286)",
    undef,
    ",AL2(117)",
    undef,
    ",AL2(290)",
  ],
)
        DC 
        DC 
        DC AL1(045)
        DC 
        DC ,AL2(286)
        DC 
        DC ,AL2(117)
        DC 
        DC ,AL2(290)

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