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Pcrepp - Perl Regular Expression syntax to match host name


Pcrepp - Perl Regular Expression syntax to match host name

By : prezpwns
Date : October 19 2020, 11:12 PM
Does that help , Something like this:
code :


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Perl regular expression to match perl regular expression literals

Perl regular expression to match perl regular expression literals


By : user3371447
Date : March 29 2020, 07:55 AM
To fix the issue you can do Those operators can contain arbitrary Perl code, and there's no specification for that.
For example, in
code :
/$x{ EXPR }/
s// EXPR /e
balanced_paren_guts  : ( /(?:[^\\\(\)]|\\.)+/ | '(' balanced_paren_guts  ')' )(s?)
balanced_square_guts : ( /(?:[^\\\[\]]|\\.)+/ | '[' balanced_square_guts ']' )(s?)
balanced_curly_guts  : ( /(?:[^\\\{\}]|\\.)+/ | '{' balanced_curly_guts  '}' )(s?)


match_op        : <skip:> 'm' /\s*/ match_op_1 match_modifiers

match_op_1      : '(' <commit> balanced_paren  ')'
                | '[' <commit> balanced_square ']'
                | '{' <commit> balanced_curly  '}'
                | /(?x: ([^\\]) (?:(?!\1).|\\.)* \1 )/

match_modifiers : /\w+/


subst_op        : <skip:> 's' /\s*/ subst_op_1 subst_modifiers

subst_op_1      : '(' <commit> balanced_paren  ')' \s* subst_op_2
                | '[' <commit> balanced_square ']' \s* subst_op_2
                | '{' <commit> balanced_curly  '}' \s* subst_op_2
                | /(?x: ([^\\]) (?:(?!\1).|\\.)* \1 (?:(?!\1).|\\.)* \1 )/

subst_op_2      : '(' <commit> balanced_paren  ')'
                | '[' <commit> balanced_square ']'
                | '{' <commit> balanced_curly  '}'
                | /(?x: ([^\\]) (?:(?!\1).|\\.)* \1 )/

subst_modifiers : /\w+/
Does dart support perl style regular expression and match operator syntax?

Does dart support perl style regular expression and match operator syntax?


By : roushan
Date : March 29 2020, 07:55 AM
Any of those help There are no regexp literals and match operators in Dart. So yes, you have to use the RegExp object and its siblings.
Regular Expression to match on any URL parameter value (Perl syntax)

Regular Expression to match on any URL parameter value (Perl syntax)


By : Carlos J. Tur
Date : March 29 2020, 07:55 AM
will help you I am struggling to find a pattern that will allow me to select the value portion of a Parameter=Value element of a URL string. I would like it to be generic enough that I could replace the 'Parameter' with any term and retrieve its value. , In case it has to be a regex,
code :
/userid=([^&]*)/
Perl regular expression to match '>'

Perl regular expression to match '>'


By : ljigem
Date : March 29 2020, 07:55 AM
I wish did fix the issue. This is how data is arranged in my file. , Have a try with:
code :
#!/usr/bin/perl

# ALLWAYS
use strict;
use warnings;

print "Enter the first filename\n";
chomp (my $filename = <>); # remove the line break

print "Enter the output file for ids\n";
chomp (my $filename1 = <>); # remove the line break

print "Enter the output file for sequences\n";
chomp (my $filename1 = <>); # remove the line break

# use three args open and show the reason when it fails
open(my $FILE,  '<', $filename)  or die "Unable to open '$filename', $!";
open(my $FILE1, '>', $filename1) or die "Unable to open '$filename1', $!";
open(my $FILE2, '>', $filename2) or die "Unable to open '$filename2', $!";

while(my $line = <$FILE>) {
    chomp($line);   # remove line break
    if ($line =~ /^>/) {
        print $FILE1 $line,"\n";
        # add a line break to filename2 unless we are at first line.
        print $FILE2 "\n" unless $. < 2;
    }
    else {
        print $FILE2 $line;
    }
}
Regular expression to match XML start node but not self-closing nodes, with capability to match some informal syntax typ

Regular expression to match XML start node but not self-closing nodes, with capability to match some informal syntax typ


By : Dylan Uschold
Date : March 29 2020, 07:55 AM
With these it helps I need a regular expression to match XML start nodes like the following, , You may use
code :
<(?![^<>]*\/\s*>)([a-zA-Z]+)(?:\s+[^\/<>"=\s]+(?:=(?:"[^<>"]*"?|[^=<>"\s]*"?)?)?)*>
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