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@ISPUNCT[string]: Returns 1 if string is entirely composed of punctuation characters, i.e. printable characters which are not alphanumeric or space; 0 otherwise.

 

See also: @ISALNUM, @ISALPHA, @ISASCII, @ISCNTRL, @ISDIGIT, @ISPRINT, @ISSPACE, @ISXDIGIT.

 

Examples:

 

echo %@ispunct[.]

1

 

echo %@ispunct[+]

1

 

echo %@ispunct[:-)]

1

 

echo %@ispunct[.,a]

0