Strings of ACL2 characters are written as sequences of characters delimited by ``double quotation marks'' ("). To put a double quotation mark in a string (or, any other character such as backslash or newline that seems to cause problems), escape it by preceding it with a backslash (\).
The function stringp  recognizes strings and
 recognizes strings and char  will fetch the nth character of a string.  There are many other primitives
for handling strings, such as
will fetch the nth character of a string.  There are many other primitives
for handling strings, such as string<  for comparing two strings
lexicographically.  We suggest you See programming
 for comparing two strings
lexicographically.  We suggest you See programming  where we list all
of the primitive ACL2 functions.  Alternatively, see any Common Lisp language
documentation.
 where we list all
of the primitive ACL2 functions.  Alternatively, see any Common Lisp language
documentation.
 
 