use strict;
my $str = '\\uff009ea1
\\t
\\\\
\\b
\\uff009ea1\\t\\\\\\b
\\uff009ea1\\\\\\b
"Hello there, 123 !@&^#%! what???\'\'"
"Hello there 123 what"
"Hello there, 123 !@&\\t\\\\\\b^#%! what???\'\'"
"Hello there \\uff009ea1\\t\\\\\\b 123 what"';
my $regex = qr/^" # opening quote
(?:\\ # accept a literal backslash if it
(?: # if it's followed by
["\\\/bfnrt] # one of the magic characters
| # or
u[\da-fA-F]{8} # a unicode character
)
| # or, if it's not
# a backslash-escaped character
[^"\\] # we accept anything that isn't
# a doublequote, backslash,
# or possibly \r or \n
)* # zero or more of these
# acceptable-content items
"$ # the requisite closing quote/mxp;
if ( $str =~ /$regex/g ) {
print "Whole match is ${^MATCH} and its start/end positions can be obtained via \$-[0] and \$+[0]\n";
# print "Capture Group 1 is $1 and its start/end positions can be obtained via \$-[1] and \$+[1]\n";
# print "Capture Group 2 is $2 ... and so on\n";
}
# ${^POSTMATCH} and ${^PREMATCH} are also available with the use of '/p'
# Named capture groups can be called via $+{name}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html