Re^3: Substitution in range operator

Hm, odd. Please try running this program:

#!/usr/bin/perl

use strict;
use warnings;

local $/;
my $txt = <DATA>;

$txt =~ s/\n\|/ /g;

print $txt;

__DATA__
foo | bar
baz
|qux
fred
|wilma
barney
[download]

Output should be :

foo | bar
baz qux
fred wilma
barney
[download]

(Note that you don't need to enclose your desired match in parentheses unless you need to "capture" it.)

The way forward always starts with a minimal test.

Comment on Re^3: Substitution in range operator Select or Download Code

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Re^4: Substitution in range operator by benaw (Novice) on Dec 30, 2015 at 06:35 UTC
Output: `foo \| bar baz qux fred wilma barney` [download] Perl -v perl 5, version 14 subversion 2 (v5.14.2) built for cygwin-thread-multi-64int	[reply] [d/l]
Re^5: Substitution in range operator by ww (Archbishop) on Dec 30, 2015 at 11:27 UTC
Your output is NOT the output here (Win7 Pro 32bit, AS Perl 5.18.4 for x86)... and thus I don't think it's a Windoze line-ending problem; rather, I suspect your copy of 1nickt's suggestion (at Re^3: Substitution in range operator) is somehow inaccurate. Spirit of the Monastery	[reply] [d/l]
Re^5: Substitution in range operator by 1nickt (Canon) on Dec 30, 2015 at 06:51 UTC
I'm not sure if it is an issue with the Perl version (I am using 5.16.3 and 5.22), but rather with line endings on Windows. I don't use Windows myself, but there are considerations with line-endings on that platform; do a search and you'll find at least a couple of discussions about the topic in the last couple of months. What happens if you change the key line to: `$txt =~ s/\r\n\\|/ /g;` [download] ? The way forward always starts with a minimal test.	[reply] [d/l]
Re^6: Substitution in range operator by benaw (Novice) on Dec 30, 2015 at 07:27 UTC
I get the correct output but in my script it doesn't change the pipe or remove the new line. Funny because i copied the char into a hex editor and got "a" (new line not carriage return) I'll play around with it some more tomorrow but is there a way to use hex values in the regex? - just googled http://www.regular-expressions.info/nonprint.html so I'll have another look at a hex editor tomorrow and give it a go trying with hex symbols. `foo \| bar baz qux fred wilma barney` [download]	[reply] [d/l]
Re^7: Substitution in range operator by benaw (Novice) on Dec 30, 2015 at 07:43 UTC
Re^8: Substitution in range operator by Anonymous Monk on Dec 30, 2015 at 07:56 UTC
Re^6: Subistution in range operator by benaw (Novice) on Jan 07, 2016 at 05:54 UTC
I get the correct output but in my script it doesn't change the pipe or remove the new line. Funny because i copied the char into a hex editor and got "a" (new line not carriage return) I'll play around with it some more tomorrow but is there a way to use hex values in the regex? - just googled http://www.regular-expressions.info/nonprint.html so I'll have another look at a hex editor tomorrow and give it a go trying with hex symbols. `foo \| bar baz qux fred wilma barney` [download]	[reply] [d/l]