Basic REPL based on linenoise.

* Makefile (OBJS): Only include linenoise.o if
have_termios is y.

* configure: Adding test for termios.
(have_termios): New configure and config.make variable.
(gen_config_make): Generate have_termios variable.

* parser.c (repl): New function.

* parser.h (repl): Declared.

* txr.c (help): Summarize new -i option.
(txr_main): Implement -i repl.

1 files changed, 3 insertions, 0 deletions

diff --git a/parser.h b/parser.h
index 9d4d857c..16308570 100644
--- a/parser.h
+++ b/parser.h
@@ -94,6 +94,9 @@ val rlcp_tree(val to, val from);
 val regex_parse(val string, val error_stream);
 val lisp_parse(val source, val error_stream, val error_return_val, val name);
 val read_eval_stream(val stream, val error_stream, val hash_bang_support);
+#if HAVE_TERMIOS
+val repl(val bindings, val in_stream, val out_stream);
+#endif
 void parser_common_init(parser_t *);
 void parser_cleanup(parser_t *);
 val parser(val stream, val lineno);