use strict;
my $str = 'extend mineral Uraninite {
kinetics {
rate = -3.2e-08 mol/m2/s
area = Uraninite
y-term, species = Uraninite
w-term {
species = H[+]
power = 0.37
}
}
kinetics {
rate = 3.2e-09 mol/m2/s
area = Uraninite
y-term, species = Uraninite
w-term {
species = H[+]
power = 0.37
}
}
}';
my $regex = qr/extend\s+([^n]*)(?:(?P<phase>colloid|mineral|basis|isotope|solid-solution)\s+)?(?P<species>[^\n ]+)\s+({(?P<content>((?:[^{}]++|(?4))*))})/mp;
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