Re^2: Is a here-doc a good way to retrieve data file contents for testing? (updated)

tybalt89, you are one of the most unorthodox Perl hackers I've seen so far and I mean it as a compliment. :)

Cheers Rolf
_{(addicted to the Perl Programming Language :)

Wikisyntax for the Monastery}

UPDATE

WOW, this even allows interpolating variables from the function scope in the "outside" HERE-DOC ...

use strict;
use warnings;

print "-------\n";
print json_here(42,666);
print "-------\n";


sub chompit {
    my $str = shift;
    chomp $str;
    return $str;
}


sub json_here { my $x=shift; chompit << "__JSON__" }
      "Type": 0,
      "Width": 504,
      "X": $x,
      "Y": $_[0]
    }
  ]
}
__JSON__
[download]

C:/Perl_524/bin\perl.exe -w d:/tmp/pm/chomp_here.pl ------- "Type": 0, "Width": 504, "X": 42, "Y": 666 } ] }-------
[download]

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Re^3: Is a here-doc a good way to retrieve data file contents for testing? (updated) by tybalt89 (Monsignor) on Jan 17, 2021 at 02:56 UTC
Because it's a lexer thing. To the parser it's just a string inside the body of the sub.	[reply]
Re^4: Is a here-doc a good way to retrieve data file contents for testing? (updated) by LanX (Saint) on Jan 17, 2021 at 03:24 UTC
I know. But that's still not a guarantee, I doubt this was intended. Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]
Re^5: Is a here-doc a good way to retrieve data file contents for testing? (updated) by Corion (Patriarch) on Jan 17, 2021 at 07:06 UTC
Why should that be unintended? See perlop on Quote-like operators, where here-documents are equivalent to nomal double-quoted strings, and that certainly holds true for the scope where they are evaluated in. This scope is determined by the place where the `<<"FOO"` occurs, not where the end of string marker sits, since here-docs are a line-oriented quoting mechanism. I'm pretty sure that this behaviour is intentional and has been a long time in Perl and will stay.	[reply] [d/l]
Re^6: Is a here-doc a good way to retrieve data file contents for testing? (updated) by haukex (Archbishop) on Jan 17, 2021 at 08:51 UTC
Re^7: Is a here-doc a good way to retrieve data file contents for testing? (updated) by haj (Vicar) on Jan 17, 2021 at 09:33 UTC


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