Re^2: hex code passed from command line is interpreted literally in substitution

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Re^3: hex code passed from command line is interpreted literally in substitution by Anonymous Monk on Mar 05, 2011 at 22:56 UTC
Why not? What makes it different when it is passed from the terminal? Why does interpolation happen only once? Because that is how it works `my $stuff = "\n newline gets interpolated at compile time"; my $other = "$stuff \n gets interpolated at run time"; @ARGV = qw( $stuff $other NOINTERPOLATION ); print "$stuff\n$other\n@ARGV\n" __END__ newline gets interpolated at compile time newline gets interpolated at compile time gets interpolated at run time $stuff $other NOINTERPOLATION` [download] See, $stuff and $other and @ARGV all get interpolated in that print call, but the values in @ARGV won't get magically interpolated once again	[reply] [d/l]
Re^3: hex code passed from command line is interpreted literally in substitution by ikegami (Patriarch) on Mar 06, 2011 at 00:54 UTC
What makes it different when it is passed from the terminal? It's not different. `$ perl -E'$_="a"; $r=$ARGV[0]; s/a/$r/; say;' '\x41' \x41 $ perl -E'$_="a"; $r="\\x41"; s/a/$r/; say;' \x41` [download]	[reply] [d/l]
Re^4: hex code passed from command line is interpreted literally in substitution by Allasso (Monk) on Mar 06, 2011 at 02:12 UTC
`\\x41` is not different from `\x41` ?	[reply] [d/l] [select]
Re^5: hex code passed from command line is interpreted literally in substitution by ikegami (Patriarch) on Mar 06, 2011 at 02:26 UTC
Correct. Perl string literal «`"\\x41"`» is the same as bash string literal «`'\x41'`». Both produce the string "\","x","4","1". Print `$r` if you don't believe me.	[reply] [d/l] [select]
Re^6: hex code passed from command line is interpreted literally in substitution by Allasso (Monk) on Mar 09, 2011 at 22:51 UTC
Re^6: hex code passed from command line is interpreted literally in substitution by Allasso (Monk) on Mar 10, 2011 at 13:38 UTC
Re^7: hex code passed from command line is interpreted literally in substitution by Anonymous Monk on Mar 10, 2011 at 13:47 UTC
Re^7: hex code passed from command line is interpreted literally in substitution by ikegami (Patriarch) on Mar 10, 2011 at 17:48 UTC
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Re^6: hex code passed from command line is interpreted literally in substitution by Allasso (Monk) on Mar 10, 2011 at 14:09 UTC
Re^7: hex code passed from command line is interpreted literally in substitution by ikegami (Patriarch) on Mar 10, 2011 at 19:50 UTC
Re^7: hex code passed from command line is interpreted literally in substitution by Anonymous Monk on Mar 10, 2011 at 14:15 UTC
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Re^5: hex code passed from command line is interpreted literally in substitution by Anonymous Monk on Mar 06, 2011 at 02:30 UTC
No. \x41 is not different from \x41, or if you're interpolating, \\x41 is not different from \\x41	[reply]