fixes & enhandcements

(benchmark code..) implemented
repl completion very first version
(string xx) added
some builtin renames
a bit of comments
a bit of cocumentation
(sleep interval) added

tests/test.lsp

@@ -116,7 +116,7 @@
 (print (str-to-date "01.01.1970" "%d.%m.%Y"))
 (print (date-add (str-to-date "01.01.1970" "%d.%m.%Y") 1 "day"))
 
-(print (regex-search? "test.lsp" "^.*\.l(i)?sp$"))
+(print (string-regex? "test.lsp" "^.*\.l(i)?sp$"))
 
 
 (if (> 2 1)
@@ -131,7 +131,7 @@
 
 (define csv_list '())
 (for f (ls-dir "tests/divi")
-     (if (regex-search? f "^divi.*\.csv$")
+     (if (string-regex? f "^divi.*\.csv$")
         (do 
             (define filename (+ "tests/divi/" f))
             ; (print filename)