%set(name,gettoken)
%set(syntax,%%gettoken(string\,separators\,token))
%set(description,Extract an element from a delimited list of values. 

- %%gettoken() is useful when processing a list of string values delimited by 
special characters\, such as spaces\, tabs\, or commas. 

- string is the list of string values. 

- token identifies which element to extract (0 is the first). 

- separators is a string which contains all characters that should be 
considered as token delimiters. 

- %%gettoken() is patterned after the C strtok function. 

-  Note that one or more delimiters in a row are considered to be one 
delimiter\, e.g. for the list one\,\,three\, three is the second token.)
%set(author,)
%set(example,%%gettoken('this is a test\," "\,2) => a 
%%len(%%gettoken('this is a test\," "\,2)) => 1 
%%gettoken('one; two; ; four\,"; "\,3) => %%null%% 
%%len(%%gettoken('one; two; ; four\,"; "\,3)) => 0)
%set(seealso,)
