Hexadecimal matches

The hexadecimal pattern matches a string of hexadecimal characters. These characters cannot be preceded by a minus sign. The hexadecimal pattern matches any numeric character and the letters a through f. The pattern does not match anything else. When ASL assigns a hexadecimal pattern to a variable, the numeric value is kept but not the hexadecimal value.

The following script matches each hexadecimal number and the corresponding end-of-line.

ASL Script (hex_match.asl):
START {
 a:hex eol
}
do {
 print("Matched with ".a);
}
DEFAULT {
 ..eol
}
do {
 print("Failed match");
}
Input (hex_match.txt):
ff2234
FF
23
Output:
$ sm_adapter --file=hex_match.txt hex_match.asl
Matched with 16720436
Matched with 255
Matched with 35
$