Add a new optional ESCAPE-CHAR argument to #'split-string-by-char. src/ChangeLog addition: 2010-02-07 Aidan Kehoe <kehoea@parhasard.net> * fns.c (split_string_by_ichar_1): Extend this to take UNESCAPE and ESCAPECHAR arguments. (split_external_path, split_env_path, Fsplit_string_by_char) (Fsplit_path): Pass the new arguments to split_string_by_ichar_1(); take a new optional argument, ESCAPE-CHAR, in #'split-string-by-char, allowing SEPCHAR to be escaped. tests/ChangeLog addition: 2010-02-07 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el (split-string-by-char): Test this function, and its new ESCAPE-CHAR argument.