Re^5: pack() returns an unusable string

Just another guess (to tweak GrandFather) because I don't have a Windows system to test on.

#!/usr/bin/perl -l

use strict; # https://perlmonks.org/?node_id=11133064
use warnings;

my $template = 'd<';
my $nv = 2.4;
$nv = 4135;                     # NOTE errors for this number
my $p = pack $template, $nv;
use Data::Dump qw(pp);
my $s = (pp $p) =~ s/"(.*)"/qq($1)/sr; # tweak for different delimiter
print ">$s<\n";

system $^X, '-wle', "use strict; print unpack('H*', $s);";
[download]

Comment on Re^5: pack() returns an unusable string Download Code

Replies are listed 'Best First'.
Re^6: pack() returns an unusable string by syphilis (Archbishop) on May 27, 2021 at 06:06 UTC
Just another guess ... Yes, that works fine on Windows as is: `C:\_32\pscrpt>perl test4.pl >qq(\0\0\0\0\0'\xB0\@)< 000000000027b040` [download] But not when I change $template to "D<" and $nv to 2.4: `C:\_32\pscrpt>perl test4.pl >pack(qq(H*","9a999999999999990040000000000000))< syntax error at -e line 1, at EOF Execution of -e aborted due to compilation errors.` [download] (I can dig into this later if you're getting tired of it.) Cheers, Rob	[reply] [d/l] [select]
Re^7: pack() returns an unusable string by tybalt89 (Monsignor) on May 27, 2021 at 13:26 UTC
The Windows command line quoting rules may be so bad that the safest/easiest solution may be to write your generated code to a file and then execute the file. That way the double quotes from Data::Dump will not be confused with command line delimiters by the command line processor.	[reply]