in reply to
Regex to compare (if) two strings (Uniquely - I will explain inside)
G'day chickenlips,
Here's a solution using index and splice. (Obviously, you'll need to use your code to generate the random word - I've just allowed entering it from the command line for testing purposes.)
$ perl -Mstrict -Mwarnings -E '
print q{Random word: };
RAND: while (my $randword = <>) {
chomp $randword;
say "Input words using only letters in: $randword";
INPUT: while (my $inword = <>) {
chomp $inword;
my @randchars = split q{} => $randword;
my $char_count = 0;
CHAR: for my $in_char (split q{}, $inword) {
++$char_count;
my $pos = index join(q{} => @randchars), $in_char;
if ($pos >= 0) {
splice @randchars, $pos, 1;
}
else {
say "Failed on char: $in_char (at position $char_count
+)";
next INPUT;
}
}
say "$inword OK";
}
print q{Random word: };
}
print "\n";
'
Here's a sample run:
Random word: qqwe
Input words using only letters in: qqwe
ew
ew OK
ewq
ewq OK
ewqq
ewqq OK
qewq
qewq OK
qqewq
Failed on char: q (at position 5)
qqqwe
Failed on char: q (at position 3)
Random word: aaaabcde
Input words using only letters in: aaaabcde
qwe
Failed on char: q (at position 1)
asd
Failed on char: s (at position 2)
abcdef
Failed on char: f (at position 6)
abcde
abcde OK
aaaab
aaaab OK
aaaaab
Failed on char: a (at position 5)
Random word: ^D
