Returns the constant string (if it exists) REGEX
ends with wrapped into a STR object, otherwise NIL.
OLD-CASE-INSENSITIVE-P is the CASE-INSENSITIVE-P slot of the last STR
collected or :VOID if no STR has been collected yet. (This is a helper
function called by END-STRIN.)
end-string-aux < regex > |
end-string-aux < register > |
end-string-aux < seq > |
end-string-aux < standalone > |
end-string-aux < str > |