* eval.c (eval_init): Registered regex_parse as new

intrinsic function and std_null as new variable.

* parser.h (yylex_destroy): Existing function declared.

* parser.l (regex_parse): New function.
New lexical syntax added which returns SECRET_ESCAPE_R.

* parser.y (SECRET_ESCAPE_R): New token.
(spec): Added syntactic variant which lets us
smuggle a regex into the parser easily.

* stream.c:x (std_null): New global variable.
(null_stream_print): New static function.
(null_ops): New static structure.
(make_null_stream): New function.
(stream_init): Protect and initialize std_null.

* stream.h (std_null, make_null_stream): Declared.

* txr.1: New features documented: regex-parse, *stdnull*.

* txr.c (txr_main): Call yylex_destroy after parsing the program now
that I know about this function; this can free up some memory.

1 files changed, 1 insertions, 0 deletions

diff --git a/txr.c b/txr.c
index 5f423b03..5ff5e2e0 100644
--- a/txr.c
+++ b/txr.c
@@ -417,6 +417,7 @@ int txr_main(int argc, char **argv)
   {
     int gc = gc_state(0);
     yyparse();
+    yylex_destroy();
     gc_state(gc);
 
     if (errors)