$txt =~ tr/\x{2080}\x{2081}\x{2082}\x{2083}\x{2084}\x{2085}\x{2086}\x{2087}\x{2088}\x{2089}\x{208A}\x{208B}/0123456889+-/;# Convert subscript numbers
$txt =~ tr/\x{0251}\x{03B1}\x{03B2}\x{0262}\x{03B3}/AABGG/; # Convert Latin and Greek
- $txt =~ tr/\x{2113}\xF0\!\"\(\)\-\{\}\<\>\;\:\.\?\xA1\xBF\/\\\@\*\%\=\xB1\+\xAE\xA9\x{2117}\$\xA3\x{FFE1}\xB0\^\_\~\`/LD /; # Convert Misc
+ $txt =~ tr/\x{2113}\xF0\x{111}\!\"\(\)\-\{\}\<\>\;\:\.\?\xA1\xBF\/\\\@\*\%\=\xB1\+\xAE\xA9\x{2117}\$\xA3\x{FFE1}\xB0\^\_\~\`/LDD /; # Convert Misc
$txt =~ tr/\'\[\]\|//d; # Remove Misc
if ($sf && $sf =~ /^a/o) {
--- /dev/null
+BEGIN;
+
+INSERT INTO config.upgrade_log (version) VALUES ('0441'); -- gmc
+
+CREATE OR REPLACE FUNCTION public.naco_normalize( TEXT, TEXT ) RETURNS TEXT AS $func$
+ use Unicode::Normalize;
+ use Encode;
+
+ # When working with Unicode data, the first step is to decode it to
+ # a byte string; after that, lowercasing is safe
+ my $txt = lc(decode_utf8(shift));
+ my $sf = shift;
+
+ $txt = NFD($txt);
+ $txt =~ s/\pM+//go; # Remove diacritics
+
+ $txt =~ s/\xE6/AE/go; # Convert ae digraph
+ $txt =~ s/\x{153}/OE/go;# Convert oe digraph
+ $txt =~ s/\xFE/TH/go; # Convert Icelandic thorn
+
+ $txt =~ tr/\x{2070}\x{2071}\x{2072}\x{2073}\x{2074}\x{2075}\x{2076}\x{2077}\x{2078}\x{2079}\x{207A}\x{207B}/0123456789+-/;# Convert superscript numbers
+ $txt =~ tr/\x{2080}\x{2081}\x{2082}\x{2083}\x{2084}\x{2085}\x{2086}\x{2087}\x{2088}\x{2089}\x{208A}\x{208B}/0123456889+-/;# Convert subscript numbers
+
+ $txt =~ tr/\x{0251}\x{03B1}\x{03B2}\x{0262}\x{03B3}/AABGG/; # Convert Latin and Greek
+ $txt =~ tr/\x{2113}\xF0\x{111}\!\"\(\)\-\{\}\<\>\;\:\.\?\xA1\xBF\/\\\@\*\%\=\xB1\+\xAE\xA9\x{2117}\$\xA3\x{FFE1}\xB0\^\_\~\`/LDD /; # Convert Misc
+ $txt =~ tr/\'\[\]\|//d; # Remove Misc
+
+ if ($sf && $sf =~ /^a/o) {
+ my $commapos = index($txt,',');
+ if ($commapos > -1) {
+ if ($commapos != length($txt) - 1) {
+ my @list = split /,/, $txt;
+ my $first = shift @list;
+ $txt = $first . ',' . join(' ', @list);
+ } else {
+ $txt =~ s/,/ /go;
+ }
+ }
+ } else {
+ $txt =~ s/,/ /go;
+ }
+
+ $txt =~ s/\s+/ /go; # Compress multiple spaces
+ $txt =~ s/^\s+//o; # Remove leading space
+ $txt =~ s/\s+$//o; # Remove trailing space
+
+ # Encoding the outgoing string is good practice, but not strictly
+ # necessary in this case because we've stripped everything from it
+ return encode_utf8($txt);
+$func$ LANGUAGE 'plperlu' STRICT IMMUTABLE;
+
+COMMIT;