in reply to Re: Re: Re: "foreach" is to "next" as "map" is to ???
in thread "foreach" is to "next" as "map" is to ???

sacked,
Maybe I am just nit picking, but if you meant equivalent results you should not have said equivalent code. 
for ( @lines ) {
    next if /^#/;
    # ... a dozen lines of code
    push @paragraph, $_;
}

[download]
There is no sane way to do the equivalent of this in a map block. You can only choose not to provide the line to the paragraph at the last instruction.

L~R

Replies are listed 'Best First'.
Re: "foreach" is to "next" as "map" is to ???
by Abigail-II (Bishop) on May 26, 2004 at 16:53 UTC
    There is no sane way to do the equivalent of this in a map block.
    Of course there is. 
    map {
  !/^#/ ? () : do {
     # ... a dozen lines of code
  }
} @lines

    [download]

    Abigail

[reply]
[d/l]
Re: Re: Re: Re: Re: "foreach" is to "next" as "map" is to ???
by sacked (Hermit) on May 26, 2004 at 16:57 UTC
    You wrote:
    There is no sane way to do the equivalent of this in a map block.
    @paragraph=
  map {
    if( /^#/ ) { () }
    else {
      # ... a dozen lines of code
      $_
    }
  } @lines;

    [download]

    --sacked
[reply]
[d/l]

In Section Seekers of Perl Wisdom