New features. Strling list output streams in stream

library, allow output to be captured as a list of strings
representing lines (in contrast to string streams which capture
a single string).

The output directive can output to a variable,
and next can scan over a variable.

* lib.c (span_str, compl_span_str, break_str): New functions.

* lib.h (span_str, compl_span_str, break_str): New functions declared.

* match.c (into_k, var_k): New keyword variables.
(mf_file_data): New static function.
(v_next): Refactored argument handling. Added support for :var
keyword.
(v_output): Added support for :into keyword.

* stream.c (strlist_mark, strlist_out_put_string,
strlist_out_put_char): New static functions.
(strlist_out_ops): New static struct.
(make_strlist_output_stream, get_list_from_stream): New functions.

* stream.h (make_strlist_output_stream, get_list_from_stream): New
functions declared.

1 files changed, 2 insertions, 0 deletions

diff --git a/stream.h b/stream.h
index 1864422d..9e703378 100644
--- a/stream.h
+++ b/stream.h
@@ -32,6 +32,8 @@ val make_string_input_stream(val);
 val make_string_byte_input_stream(val);
 val make_string_output_stream(void);
 val get_string_from_stream(val);
+val make_strlist_output_stream(void);
+val get_list_from_stream(val);
 val make_dir_stream(DIR *);
 val close_stream(val stream, val throw_on_error);
 val get_line(val);