New -n option. New "i" mode letter in file opening functions.

* stream.c (struct stdio_mode): New struct type.
(stdio_mode_init_trivial): New initializer macro.
(parse_mode, format_mode, normalize_mode, set_mode_props):
New static functions.
(make_stdio_stream_common): the isatty check, and automatic marking
of tty device streams as real-time is no longer done, unless
backward compatibility 105 or earlier is requested.
(open_file, open_tail,  open_command, open_process): Use new
mode parsing, which supports the "i" flag.
(stream_init): If we have isatty, and standard input is a tty,
then mark the *std-input* stream as real-time.

* txr.1: Document -n/--noninteractive option. Fix typo where
real-time-stream-p is referred to as stream-real-time-p.
Document "i" flag on open-file and others.

* txr.c (opt_noninteractive): New global.
(help): Help text for -n/--noninteractive.
(txr_main): Handle new options.

* txr.h (opt_noninteractive): Declared.

1 files changed, 1 insertions, 0 deletions

diff --git a/txr.h b/txr.h
index 5140712f..be82ebfc 100644
--- a/txr.h
+++ b/txr.h
@@ -33,6 +33,7 @@ extern int opt_gc_debug;
 extern int opt_vg_debug;
 #endif
 extern int opt_derivative_regex;
+extern int opt_noninteractive;
 extern int opt_compat;
 extern alloc_bytes_t opt_gc_delta;
 extern const wchli_t *version;