#!/usr/bin/perl -w
$search = "\x8C\x95";
$text1 = "Text 1 \x90\x56\x8C\x95\x93\xB9";
$text2 = "Text 2 \x94\x92\x8C\x8C\x95\x61";

$encoding = q{ # Shift-JIS encoding
[\x00-\x7F] # ASCII/JIS-Roman
| [\x81-\x9F\xE0-\xFC][\x40-\x7E\x80-\xFC] # JIS X 0208:1997
| [\xA0-\xDF] # Half-width katakana
};
print "First attempt -- no anchoring\n";
print " Matched Text1\n" if $text1 =~ /$search/o;
print " Matched Text2\n" if $text2 =~ /$search/o;
print "Second attempt -- anchoring\n";
print " Matched Text1\n" if $text1 =~ /^ (?:$encoding)*? $search/osx;
print " Matched Text2\n" if $text2 =~ /^ (?:$encoding)*? $search/osx;