I was experimenting with regular expressions to try to emulate the Python isalpha() String method. Using a simple [a-zA-Z] character class worked for the English alphabet (ASCII characters):
> (regexp-match? #px"^[a-zA-Z]+$" "hello") #t > (regexp-match? #px"^[a-zA-Z]+$" "h1llo") #f It then dawned on me that the Python is alpha() method was Unicode aware: >>> "é".isalpha() True I started scratching my head as how to achieve the equivalent using a regular expression in Python. I tried the same regular expression with a non-English character in the string. To my surprise, the regular expression recognised the non-ASCII characters. > (regexp-match? #px"^[a-zA-Z]+$" "h\U+FFC3\U+FFA9llo") #t Are Racket regular expression character classes Unicode aware or is there some other explanation why this regular expression matches? Peter -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/2197C34F-165D-4D97-97AD-F158153316F5%40gmail.com.
