use strict;
my $str = '<root><h level="2" i="1">==English==</h> <template lineStart="1"><title>wikipedia</title><part><name>dab</name>=<value>overflow</value></part><part><name>lang</name>=<value>en</value></part></template> <h level="3" i="2">===Etymology===</h> From <template><title>prefix</title><part><name index="1"/><value>over</value></part><part><name index="2"/><value>flow</value></part><part><name>lang</name>=<value>en</value></part></template>. Literally corresponds to <template><title>term</title><part><name index="1"/><value>superfluous</value></part><part><name>lang</name>=<value>en</value></part></template>, which is from Latin, rather than Germanic. <h level="3" i="3">===Pronunciation===</h> * <template><title>a</title><part><name index="1"/><value>RP</value></part></template> ** <template><title>sense</title><part><name index="1"/><value>noun</value></part></template> <template><title>enPR</title><part><name index="1"/><value>ōʹvə-flō\'</value></part></template>, <template><title>IPA</title><part><name index="1"/><value>/ˈəʊvəˌfləʊ/</value></part><part><name>lang</name>=<value>en</value></part></template> ** <template><title>sense</title><part><name index="1"/><value>verb</value></part></template> <template><title>enPR</title><part><name index="1"/><value>ō\'və-flōʹ</value></part></template>, <template><title>IPA</title><part><name index="1"/><value>/ˌəʊvəˈfləʊ/</value></part><part><name>lang</name>=<value>en</value></part></template> * <template><title>a</title><part><name index="1"/><value>GenAm</value></part></template> ** <template><title>sense</title><part><name index="1"/><value>noun</value></part></template> <template><title>enPR</title><part><name index="1"/><value>ōʹvər-flō\'</value></part></template>, <template><title>IPA</title><part><name index="1"/><value>/ˈoʊvɚˌfloʊ/</value></part><part><name>lang</name>=<value>en</value></part></template> ** <template><title>sense</title><part><name index="1"/><value>verb</value></part></template> <template><title>enPR</title><part><name index="1"/><value>ō\'vər-flōʹ</value></part></template>, <template><title>IPA</title><part><name index="1"/><value>/ˌoʊvɚˈfloʊ/</value></part><part><name>lang</name>=<value>en</value></part></template> * <template><title>rhymes</title><part><name index="1"/><value>əʊ</value></part><part><name>lang</name>=<value>en</value></part></template> <h level="3" i="4">===Noun===</h> <template lineStart="1"><title>en-noun</title></template> # The [[spillage]] resultant from overflow; [[excess]]. # [[outlet|Outlet]] for escape of excess material. # <template><title>context</title><part><name index="1"/><value>computing</value></part><part><name>lang</name>=<value>en</value></part></template> The situation where a value exceeds the available [[numeric]] [[range]]. <h level="4" i="5">====Translations====</h> <template lineStart="1"><title>trans-top</title><part><name index="1"/><value>spillage</value>';
my $regex = qr/(?:===Verb===|===Noun===|===Adjective===|===Adverb===)(.*?)====Translations====/p;
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