--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/objects-tty.c	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,325 @@
+/* TTY-specific Lisp objects.
+   Copyright (C) 1995 Board of Trustees, University of Illinois.
+   Copyright (C) 1995, 1996 Ben Wing.
+
+This file is part of XEmacs.
+
+XEmacs is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: Not in FSF. */
+
+#include <config.h>
+#include "lisp.h"
+
+#include "console-tty.h"
+#include "insdel.h"
+#include "objects-tty.h"
+
+/* An alist mapping from color names to a cons of (FG-STRING, BG-STRING). */
+Lisp_Object Vtty_color_alist;
+#if 0 /* This stuff doesn't quite work yet */
+Lisp_Object Vtty_dynamic_color_fg;
+Lisp_Object Vtty_dynamic_color_bg;
+#endif
+
+DEFUN ("register-tty-color", Fregister_tty_color, Sregister_tty_color, 3, 3,
+       0 /*
+Register COLOR as a recognized TTY color.
+COLOR should be a string.
+Strings FG-STRING and BG-STRING should specify the escape sequences to
+ set the foreground and background to the given color, respectively.
+*/ )
+     (color, fg_string, bg_string)
+     Lisp_Object color, fg_string, bg_string;
+{
+  CHECK_STRING (color);
+  CHECK_STRING (fg_string);
+  CHECK_STRING (bg_string);
+
+  color = Fintern (color, Qnil);
+  Vtty_color_alist = Fremassq (color, Vtty_color_alist);
+  Vtty_color_alist = Fcons (Fcons (color, Fcons (fg_string, bg_string)),
+			    Vtty_color_alist);
+
+  return Qnil;
+}
+
+DEFUN ("unregister-tty-color", Funregister_tty_color, Sunregister_tty_color,
+       1, 1, 0 /*
+Unregister COLOR as a recognized TTY color.
+*/ )
+  (color)
+     Lisp_Object color;
+{
+  CHECK_STRING (color);
+
+  color = Fintern (color, Qnil);
+  Vtty_color_alist = Fremassq (color, Vtty_color_alist);
+  return Qnil;
+}
+
+DEFUN ("find-tty-color", Ffind_tty_color, Sfind_tty_color, 1, 1, 0 /*
+Look up COLOR in the list of registered TTY colors.
+If it is found, return a list (FG-STRING BG-STRING) of the escape
+sequences used to set the foreground and background to the color, respectively.
+If it is not found, return nil.
+*/ )
+  (color)
+     Lisp_Object color;
+{
+  Lisp_Object result;
+
+  CHECK_STRING (color);
+
+  result = Fassq (Fintern (color, Qnil), Vtty_color_alist);
+  if (!NILP (result))
+    return list2 (Fcar (Fcdr (result)), Fcdr (Fcdr (result)));
+  else
+    return Qnil;
+}
+
+DEFUN ("tty-color-list", Ftty_color_list, Stty_color_list, 0, 0, 0 /*
+Return a list of the registered TTY colors.
+*/ )
+  ()
+{
+  Lisp_Object result = Qnil;
+  Lisp_Object rest;
+
+  LIST_LOOP (rest, Vtty_color_alist)
+    {
+      result = Fcons (Fsymbol_name (XCAR (XCAR (rest))), result);
+    }
+
+  return Fnreverse (result);
+}
+
+#if 0
+
+/* This approach is too simplistic.  The problem is that the
+   dynamic color settings apply to *all* text in the default color,
+   not just the text output after the escape sequence has been given. */
+
+DEFUN ("set-tty-dynamic-color-specs", Fset_tty_dynamic_color_specs,
+       Sset_tty_dynamic_color_specs, 2, 2, 0 /*
+Set the dynamic color specifications for TTY's.
+FG and BG should be either nil or vaguely printf-like strings,
+where each occurrence of %s is replaced with the color name and each
+occurrence of %% is replaced with a single % character.
+*/ )
+  (fg, bg)
+  Lisp_Object fg, bg;
+{
+  if (!NILP (fg))
+    CHECK_STRING (fg);
+  if (!NILP (bg))
+    CHECK_STRING (bg);
+
+  Vtty_dynamic_color_fg = fg;
+  Vtty_dynamic_color_bg = bg;
+
+  return Qnil;
+}
+
+DEFUN ("tty-dynamic-color-specs", Ftty_dynamic_color_specs,
+       Stty_dynamic_color_specs, 0, 0, 0 /*
+Return the dynamic color specifications for TTY's as a list of (FG BG).
+See `set-tty-dynamic-color-specs'.
+*/ )
+  ()
+{
+  return list2 (Vtty_dynamic_color_fg, Vtty_dynamic_color_bg);
+}
+
+#endif /* 0 */
+
+static int
+tty_initialize_color_instance (struct Lisp_Color_Instance *c, Lisp_Object name,
+			       Lisp_Object device, Error_behavior errb)
+{
+  Lisp_Object result;
+
+  name = Fintern (name, Qnil);
+  result = assq_no_quit (name, Vtty_color_alist);
+
+  if (NILP (result))
+    {
+#if 0
+      if (!STRINGP (Vtty_dynamic_color_fg)
+	  && !STRINGP (Vtty_dynamic_color_bg))
+#endif
+        return 0;
+    }
+
+  /* Don't allocate the data until we're sure that we will succeed. */
+  c->data = malloc_type (struct tty_color_instance_data);
+  COLOR_INSTANCE_TTY_SYMBOL (c) = name;
+
+  return 1;
+}
+
+static void
+tty_mark_color_instance (struct Lisp_Color_Instance *c,
+			 void (*markobj) (Lisp_Object))
+{
+  ((markobj) (COLOR_INSTANCE_TTY_SYMBOL (c)));
+}
+
+static void
+tty_print_color_instance (struct Lisp_Color_Instance *c,
+			  Lisp_Object printcharfun,
+			  int escapeflag)
+{
+}
+
+static void
+tty_finalize_color_instance (struct Lisp_Color_Instance *c)
+{
+  if (c->data)
+    xfree (c->data);
+}
+
+static int
+tty_color_instance_equal (struct Lisp_Color_Instance *c1,
+			  struct Lisp_Color_Instance *c2,
+			  int depth)
+{
+  return (EQ (COLOR_INSTANCE_TTY_SYMBOL (c1),
+	      COLOR_INSTANCE_TTY_SYMBOL (c2)));
+}
+
+static unsigned long
+tty_color_instance_hash (struct Lisp_Color_Instance *c, int depth)
+{
+  return LISP_HASH (COLOR_INSTANCE_TTY_SYMBOL (c));
+}
+
+static int
+tty_valid_color_name_p (struct device *d, Lisp_Object color)
+{
+  return (!NILP (assoc_no_quit (Fintern (color, Qnil), Vtty_color_alist)));
+#if 0
+	  || STRINGP (Vtty_dynamic_color_fg)
+	  || STRINGP (Vtty_dynamic_color_bg)
+#endif
+}
+
+
+static int
+tty_initialize_font_instance (struct Lisp_Font_Instance *f, Lisp_Object name,
+			      Lisp_Object device, Error_behavior errb)
+{
+  Bufbyte *str = string_data (XSTRING (name));
+  Lisp_Object charset = Qnil;
+
+  if (strncmp ((CONST char *) str, "normal", 6))
+    return 0;
+  str += 6;
+  if (*str)
+    {
+      return 0;
+    }
+
+  /* Don't allocate the data until we're sure that we will succeed. */
+  f->data = malloc_type (struct tty_font_instance_data);
+  FONT_INSTANCE_TTY_CHARSET (f) = charset;
+  f->width = 1;
+
+  f->proportional_p = 0;
+  f->ascent = f->height = 1;
+  f->descent = 0;
+
+  return 1;
+}
+
+static void
+tty_mark_font_instance (struct Lisp_Font_Instance *f,
+			void (*markobj) (Lisp_Object))
+{
+  ((markobj) (FONT_INSTANCE_TTY_CHARSET (f)));
+}
+
+static void
+tty_print_font_instance (struct Lisp_Font_Instance *f,
+			 Lisp_Object printcharfun,
+			 int escapeflag)
+{
+}
+
+static void
+tty_finalize_font_instance (struct Lisp_Font_Instance *f)
+{
+  if (f->data)
+    xfree (f->data);
+}
+
+static Lisp_Object
+tty_list_fonts (Lisp_Object pattern, Lisp_Object device)
+{
+  return list1 (build_string ("normal"));
+}
+
+
+/************************************************************************/
+/*                            initialization                            */
+/************************************************************************/
+
+void
+syms_of_objects_tty (void)
+{
+  defsubr (&Sregister_tty_color);
+  defsubr (&Sunregister_tty_color);
+  defsubr (&Sfind_tty_color);
+  defsubr (&Stty_color_list);
+#if 0
+  defsubr (&Sset_tty_dynamic_color_specs);
+  defsubr (&Stty_dynamic_color_specs);
+#endif
+}
+
+void
+console_type_create_objects_tty (void)
+{
+  /* object methods */
+  CONSOLE_HAS_METHOD (tty, initialize_color_instance);
+  CONSOLE_HAS_METHOD (tty, mark_color_instance);
+  CONSOLE_HAS_METHOD (tty, print_color_instance);
+  CONSOLE_HAS_METHOD (tty, finalize_color_instance);
+  CONSOLE_HAS_METHOD (tty, color_instance_equal);
+  CONSOLE_HAS_METHOD (tty, color_instance_hash);
+  CONSOLE_HAS_METHOD (tty, valid_color_name_p);
+
+  CONSOLE_HAS_METHOD (tty, initialize_font_instance);
+  CONSOLE_HAS_METHOD (tty, mark_font_instance);
+  CONSOLE_HAS_METHOD (tty, print_font_instance);
+  CONSOLE_HAS_METHOD (tty, finalize_font_instance);
+  CONSOLE_HAS_METHOD (tty, list_fonts);
+}
+
+void
+vars_of_objects_tty (void)
+{
+  staticpro (&Vtty_color_alist);
+  Vtty_color_alist = Qnil;
+
+#if 0
+  staticpro (&Vtty_dynamic_color_fg);
+  Vtty_dynamic_color_fg = Qnil;
+
+  staticpro (&Vtty_dynamic_color_bg);
+  Vtty_dynamic_color_bg = Qnil;
+#endif
+}