Returns TRUE for any-string values.
any-string? value
value - The value argument. (must be: any-type)
Returns FALSE for all other values.
if any-string? "Hello" [print "a string"] a string
probe any-string? email@rebol.com true
probe any-string? ftp://ftp.rebol.com true
probe any-string? %/path/to/file.txt true
probe any-string? 11-Jan-2000 false
any-block? - Returns TRUE for any-block values.
any-function? - Returns TRUE for any-function values.
any-type? - Returns TRUE for any-type values.
email? - Returns TRUE for email values.
file? - Returns TRUE for file values.
string? - Returns TRUE for string values.
url? - Returns TRUE for url values.