+ # (1) non-break space -> normal space
+ $line =~ s/\x{c2}\x{a0}/ /g;
+ # (2) bullet -> asterisk
+ $line =~ s/\x{e2}\x{97}\x{8f}/*/g;
+ # (3a) horizontal box drawing -> hyphen
+ $line =~ s/\x{e2}\x{94}[\x{80}\x{81}\x{84}\x{85}\x{88}\x{89}]/-/g;
+ $line =~ s/\x{e2}\x{95}[\x{8c}\x{8d}\x{90}]/-/g;
+ $line =~ s/\x{e2}\x{95}[\x{b4}\x{b6}\x{b8}\x{ba}\x{bc}\x{be}]/-/g;
+ # (3b) vertical box drawing -> bar
+ $line =~ s/\x{e2}\x{94}[\x{82}\x{83}\x{86}\x{87}\x{8a}\x{8b}]/|/g;
+ $line =~ s/\x{e2}\x{95}[\x{8e}\x{8f}\x{91}]/|/g;
+ $line =~ s/\x{e2}\x{95}[\x{b5}\x{b7}\x{b9}\x{bb}\x{bd}\x{bf}]/|/g;
+ # (3c) corner box drawing -> plus
+ $line =~ s/\x{e2}\x{94}[\x{8c}-\x{bf}]/+/g;
+ $line =~ s/\x{e2}\x{95}[\x{80}-\x{8b}\x{92}-\x{b0}]/+/g;
+ # other
+ $line =~ s/\x{e2}\x{95}\x{b1}/\//g;
+ $line =~ s/\x{e2}\x{95}\x{b2}/\\/g;
+ $line =~ s/\x{e2}\x{95}\x{b3}/X/g;
+