Re^4: Reg exp questions

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Re^5: Reg exp questions by toolic (Bishop) on Nov 07, 2014 at 19:48 UTC
Did you really mean to include a newline character (single quotes prevent interpolation)? `use warnings; use strict; my $str = 'dfsldjf(djfls)jfslfk kfds\nfjsldf'; $str =~ s/[\s()]/_/g; $str =~ s/\\n/ /g; print "$str\n"; __END__ dfsldjf_djfls_jfslfk_kfds fjsldf` [download]	[reply] [d/l]
Re^6: Reg exp questions by carolw (Sexton) on Nov 07, 2014 at 20:37 UTC
well I have a file a lines and there is \n between lines. In order to send an example of what I have in one string, I included \n in the string. Otherwise, it's like HeadeRdfsldjf(djfls)jfslfk kfd lfjslfjsflk dkflskfs HeadeRRdfsldjf(djfls)jfslfk kfd lfjslfjsflk dkflskfs in the header line, ()\s should be replaced by _, \n at the end should be replaced by \s, on the following lines without Header, \n should be removed except the last one so that it won't be concatenated with the next header line: HeadeRdfsldjf_djfls_jfslfk_kfd lfjslfjsflkdkflskfs HeadeRdfsldjf_djfls_jfslfk_kfd lfjslfjsflkdkflskfs =~ s/\\n/ /g; doesn't work for me. I don't get space instead of \n.	[reply]
Re^7: Reg exp questions by Anonymous Monk on Nov 08, 2014 at 08:08 UTC
`\s` doesn't mean 'space', it means 'ascii/unicode whitespace characters', which include, among others, newline, tab, space.	[reply] [d/l]
Re^6: Reg exp questions by carolw (Sexton) on Nov 08, 2014 at 19:59 UTC
So finally, $str =~ s/\n/ /g; removes \n. Does it remove EOF, too? If so, how to avoid?	[reply]
Re^7: Reg exp questions by Happy-the-monk (Canon) on Nov 08, 2014 at 20:28 UTC
So finally, $str =~ s/\n/ /g; removes \n. Does it remove EOF, too? ~~removes \n~~ ... replaces `\n` by a blank. And no, it has no effect on the EOF character. Cheers, Sören Créateur des bugs mobiles - let loose once, run everywhere. (hooked on the Perl Programming language)	[reply] [d/l]