From: Mark Mitchell <mark@codesourcery.com>
Date: Mon, 25 Jul 2005 15:09:31 +0000 (+0000)
Subject: 	* input.c (rl_getc): Use getch to read console input on
X-Git-Url: http://git.efficios.com/?a=commitdiff_plain;h=fd8be987f8334e9530be6ca571c54695892aa871;p=deliverable%2Fbinutils-gdb.git

	* input.c (rl_getc): Use getch to read console input on
	Windows.
	* readline.c (bind_arrow_keys_internal): Translate
	Windows keysequences into POSIX key sequences.
	* rldefs.h (NO_TTY_DRIVER): Define on MinGW.
	* rltty.c: Conditionalize on NO_TTY_DRIVER throughout.
---

diff --git a/readline/ChangeLog.gdb b/readline/ChangeLog.gdb
index 62fa1b6613..cdf268648a 100644
--- a/readline/ChangeLog.gdb
+++ b/readline/ChangeLog.gdb
@@ -1,3 +1,12 @@
+2005-07-25  Mark Mitchell <mark@codesourcery.com>
+
+	* input.c (rl_getc): Use getch to read console input on
+	Windows.
+	* readline.c (bind_arrow_keys_internal): Translate
+	Windows keysequences into POSIX key sequences.
+	* rldefs.h (NO_TTY_DRIVER): Define on MinGW.
+	* rltty.c: Conditionalize on NO_TTY_DRIVER throughout.
+	
 2005-07-03  Mark Kettenis <kettenis@gnu.org>
 
 	From Martin Simmons:
diff --git a/readline/input.c b/readline/input.c
index 841f05d1af..9120dfa8a8 100644
--- a/readline/input.c
+++ b/readline/input.c
@@ -424,6 +424,13 @@ rl_getc (stream)
 
   while (1)
     {
+#ifdef __MINGW32__
+      /* On Windows, use a special routine to read a single  character
+	 from the console.  (Otherwise, no characters are available
+	 until the user hits the return key.)  */
+      if (isatty (fileno (stream)))
+	return getch ();
+#endif
       result = read (fileno (stream), &c, sizeof (unsigned char));
 
       if (result == sizeof (unsigned char))
diff --git a/readline/readline.c b/readline/readline.c
index aed0235bf3..07fb58fd21 100644
--- a/readline/readline.c
+++ b/readline/readline.c
@@ -868,6 +868,22 @@ bind_arrow_keys_internal (map)
    _rl_bind_if_unbound ("\033[0D", rl_get_next_history);
 #endif
 
+#ifdef __MINGW32__
+   /* Under Windows, when an extend key (like an arrow key) is
+      pressed, getch() will return 340 (octal) followed by a code for
+      the extended key.  We use macros to transform those into the
+      normal ANSI terminal sequences for these keys.  */
+
+   /* Up arrow.  */
+   rl_macro_bind ("\340H", "\033[A", map);
+   /* Left arrow.  */
+   rl_macro_bind ("\340K", "\033[D", map);
+   /* Right arrow.  */
+   rl_macro_bind ("\340M", "\033[C", map);
+   /* Down arrow.  */
+   rl_macro_bind ("\340P", "\033[B", map);
+#endif
+
   _rl_bind_if_unbound ("\033[A", rl_get_previous_history);
   _rl_bind_if_unbound ("\033[B", rl_get_next_history);
   _rl_bind_if_unbound ("\033[C", rl_forward_char);
diff --git a/readline/rldefs.h b/readline/rldefs.h
index 4a28bd1e49..b80db8cffe 100644
--- a/readline/rldefs.h
+++ b/readline/rldefs.h
@@ -32,7 +32,9 @@
 
 #include "rlstdc.h"
 
-#if defined (_POSIX_VERSION) && !defined (TERMIOS_MISSING)
+#if defined (__MINGW32__)
+#  define NO_TTY_DRIVER
+#elif defined (_POSIX_VERSION) && !defined (TERMIOS_MISSING)
 #  define TERMIOS_TTY_DRIVER
 #else
 #  if defined (HAVE_TERMIO_H)
diff --git a/readline/rltty.c b/readline/rltty.c
index ad17904347..2ccb9d1a56 100644
--- a/readline/rltty.c
+++ b/readline/rltty.c
@@ -152,7 +152,9 @@ set_winsize (tty)
 #endif /* TIOCGWINSZ */
 }
 
-#if defined (NEW_TTY_DRIVER)
+#if defined (NO_TTY_DRIVER)
+/* Nothing */
+#elif defined (NEW_TTY_DRIVER)
 
 /* Values for the `flags' field of a struct bsdtty.  This tells which
    elements of the struct bsdtty have been fetched from the system and
@@ -632,6 +634,22 @@ prepare_terminal_settings (meta_flag, oldtio, tiop)
 }
 #endif  /* NEW_TTY_DRIVER */
 
+/* Put the terminal in CBREAK mode so that we can detect key
+   presses. */
+#if defined (NO_TTY_DRIVER)
+void
+rl_prep_terminal (meta_flag)
+     int meta_flag;
+{
+  readline_echoing_p = 1;
+}
+
+void
+rl_deprep_terminal ()
+{
+}
+
+#else /* ! NO_TTY_DRIVER */
 /* Put the terminal in CBREAK mode so that we can detect key presses. */
 void
 rl_prep_terminal (meta_flag)
@@ -706,6 +724,7 @@ rl_deprep_terminal ()
 
   release_sigint ();
 }
+#endif /* !NO_TTY_DRIVER */
 
 /* **************************************************************** */
 /*								    */
@@ -717,6 +736,10 @@ int
 rl_restart_output (count, key)
      int count, key;
 {
+#if defined (__MINGW32__)
+  return 0;
+#else /* !__MING32__ */
+
   int fildes = fileno (rl_outstream);
 #if defined (TIOCSTART)
 #if defined (apollo)
@@ -744,12 +767,17 @@ rl_restart_output (count, key)
 #endif /* !TIOCSTART */
 
   return 0;
+#endif /* !__MINGW32__ */
 }
 
 int
 rl_stop_output (count, key)
      int count, key;
 {
+#if defined (__MINGW32__)
+  return 0;
+#else
+
   int fildes = fileno (rl_instream);
 
 #if defined (TIOCSTOP)
@@ -772,6 +800,7 @@ rl_stop_output (count, key)
 #endif /* !TIOCSTOP */
 
   return 0;
+#endif /* !__MINGW32__ */
 }
 
 /* **************************************************************** */
@@ -786,6 +815,7 @@ void
 rltty_set_default_bindings (kmap)
      Keymap kmap;
 {
+#if !defined (NO_TTY_DRIVER)
   TIOTYPE ttybuff;
   int tty = fileno (rl_instream);
 
@@ -844,6 +874,7 @@ rltty_set_default_bindings (kmap)
 #  endif /* VWERASE && TERMIOS_TTY_DRIVER */
     }
 #endif /* !NEW_TTY_DRIVER */
+#endif
 }
 
 /* New public way to set the system default editing chars to their readline
@@ -857,7 +888,7 @@ rl_tty_set_default_bindings (kmap)
 
 #if defined (HANDLE_SIGNALS)
 
-#if defined (NEW_TTY_DRIVER)
+#if defined (NEW_TTY_DRIVER) || defined (NO_TTY_DRIVER)
 int
 _rl_disable_tty_signals ()
 {