The HasPunctuation( s ) command determines whether s contains a punctuation character. Punctuation characters are printable characters, other than whitespace, for which neither IsControlCharacter nor IsAlphaNumeric returns true.

If s contains a punctuation character, HasPunctuation returns true. Otherwise, false is returned.

All of the StringTools package commands treat strings as (null-terminated) sequences of $8$-bit (ASCII) characters.  Thus, there is no support for multibyte character encodings, such as unicode encodings.

The StringTools[HasPunctuation] command is thread-safe as of Maple 15.

For more information on thread safety, see index/threadsafe.

$\mathrm{with}\left(\mathrm{StringTools}\right)\:$

$\mathrm{HasPunctuation}\left(''abcde''\right)$

$\mathrm{false}$

$\mathrm{HasPunctuation}\left(''abc,de''\right)$

$\mathrm{true}$