Regex question

DivKay has asked for the wisdom of the Perl Monks concerning the following question:

I am trying to do a pattern match and having issues.

The Main string: this is my teststring. LoadStore.SGE.\sr1_addr_reg_tmp_reg[0]

Regexp: LoadStore\.SGE\.\\.r._addr_reg_tmp_reg

I am positive the regexp is correct but it still doesnt match.

Also, I am getting an 'Unrecognized escape \s passed through' when I am passing my main string to a variable. The \s is not a space but a literal \s

Appreciate the help.

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Re: Regex question
by tangent (Parson) on Jun 24, 2016 at 00:07 UTC

my $string;

print "Double quotes\n";
$string = "LoadStore.SGE.\sr1_addr_reg_tmp_reg[0]";
match();

print "Double quotes with escape\n";
$string = "LoadStore.SGE.\\sr1_addr_reg_tmp_reg[0]";
match();

print "Single quotes\n";
$string = 'LoadStore.SGE.\sr1_addr_reg_tmp_reg[0]';
match();

sub match {
    if ( $string =~ m/LoadStore\.SGE\.\\.r._addr_reg_tmp_reg/ ) {
        print "match\n";
    }
    else {
        print "no match\n";
    }
}
[download]

Double quotes
no match
Error: Unrecognized escape \s passed through

Double quotes with escape
match

Single quotes
match
[download]

[reply]
[d/l]
[select]


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