Pattern for matching letters and digits

Contract
Parameter key	Default value	Type
a_type	type.<one_of pattern.alphanumeric <char 95/>/>	one_of
regex_string	"\w"	string

Water Contract
<class pattern.word_char a_type =<type.one_of pattern.alphanumeric <char "_"/>/> regex_string ="\w"=string _native_object=<ja.org.apache.regexp.RE/> />

Returns a pattern with a regex_string field set to " \w ". This pattern is useful for matching uppercase and lowercase letters and digits.

Example: Match string of letters and digits only

<pattern pattern.start_of_line 
         pattern.<one_or_more pattern.word_char />
         pattern.end_of_line />.
<is_type_for "abcAe99fgH" />

true

Example: Does not match spaces or punctuation

<pattern pattern.start_of_line 
         pattern.<one_or_more pattern.word_char />
         pattern.end_of_line />.
<is_type_for "!@# $%" />

false