--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fontcolor-tty.c	Mon Feb 22 06:49:30 2010 -0600
@@ -0,0 +1,450 @@
+/* TTY-specific Lisp objects.
+   Copyright (C) 1995 Board of Trustees, University of Illinois.
+   Copyright (C) 1995, 1996, 2001, 2002, 2010 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-impl.h"
+#include "insdel.h"
+#include "fontcolor-tty-impl.h"
+#include "device.h"
+#include "charset.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
+
+static const struct memory_description tty_color_instance_data_description_1 [] = {
+  { XD_LISP_OBJECT, offsetof (struct tty_color_instance_data, symbol) },
+  { XD_END }
+};
+
+#ifdef NEW_GC
+DEFINE_LRECORD_IMPLEMENTATION ("tty-color-instance-data", 
+			       tty_color_instance_data,
+			       0, /*dumpable-flag*/
+                               0, 0, 0, 0, 0, 
+			       tty_color_instance_data_description_1,
+			       struct tty_color_instance_data);
+#else /* not NEW_GC */
+const struct sized_memory_description tty_color_instance_data_description = {
+  sizeof (struct tty_color_instance_data), tty_color_instance_data_description_1
+};
+#endif /* not NEW_GC */
+
+static const struct memory_description tty_font_instance_data_description_1 [] = {
+  { XD_LISP_OBJECT, offsetof (struct tty_font_instance_data, charset) },
+  { XD_END }
+};
+
+#ifdef NEW_GC
+DEFINE_LRECORD_IMPLEMENTATION ("tty-font-instance-data", 
+			       tty_font_instance_data,
+			       0, /*dumpable-flag*/
+                               0, 0, 0, 0, 0, 
+			       tty_font_instance_data_description_1,
+			       struct tty_font_instance_data);
+#else /* not NEW_GC */
+const struct sized_memory_description tty_font_instance_data_description = {
+  sizeof (struct tty_font_instance_data), tty_font_instance_data_description_1
+};
+#endif /* not NEW_GC */
+
+DEFUN ("register-tty-color", Fregister_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))
+{
+  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, 1, 1, 0, /*
+Unregister COLOR as a recognized TTY color.
+*/
+       (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, 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 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;
+}
+
+static Lisp_Object
+tty_color_list (void)
+{
+  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, 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))
+{
+  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, 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 (Lisp_Color_Instance *c, Lisp_Object name,
+			       Lisp_Object UNUSED (device),
+			       Error_Behavior UNUSED (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. */
+#ifdef NEW_GC
+  c->data = alloc_lrecord_type (struct tty_color_instance_data,
+				&lrecord_tty_color_instance_data);
+#else /* not NEW_GC */
+  c->data = xnew (struct tty_color_instance_data);
+#endif /* not NEW_GC */
+  COLOR_INSTANCE_TTY_SYMBOL (c) = name;
+
+  return 1;
+}
+
+static void
+tty_mark_color_instance (Lisp_Color_Instance *c)
+{
+  mark_object (COLOR_INSTANCE_TTY_SYMBOL (c));
+}
+
+static void
+tty_print_color_instance (Lisp_Color_Instance *UNUSED (c),
+			  Lisp_Object UNUSED (printcharfun),
+			  int UNUSED (escapeflag))
+{
+}
+
+static void
+tty_finalize_color_instance (Lisp_Color_Instance *UNUSED_IF_NEW_GC (c))
+{
+#ifndef NEW_GC
+  if (c->data)
+    xfree (c->data);
+#endif /* not NEW_GC */
+}
+
+static int
+tty_color_instance_equal (Lisp_Color_Instance *c1,
+			  Lisp_Color_Instance *c2,
+			  int UNUSED (depth))
+{
+  return (EQ (COLOR_INSTANCE_TTY_SYMBOL (c1),
+	      COLOR_INSTANCE_TTY_SYMBOL (c2)));
+}
+
+static Hashcode
+tty_color_instance_hash (Lisp_Color_Instance *c, int UNUSED (depth))
+{
+  return LISP_HASH (COLOR_INSTANCE_TTY_SYMBOL (c));
+}
+
+static int
+tty_valid_color_name_p (struct device *UNUSED (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 (Lisp_Font_Instance *f, Lisp_Object name,
+			      Lisp_Object UNUSED (device),
+			      Error_Behavior UNUSED (errb))
+{
+  Ibyte *str = XSTRING_DATA (name);
+  Lisp_Object charset = Qnil;
+
+  if (qxestrncmp_ascii (str, "normal", 6))
+    return 0;
+  str += 6;
+  if (*str)
+    {
+#ifdef MULE
+      if (*str != '/')
+	return 0;
+      str++;
+      charset = Ffind_charset (intern_istring (str));
+      if (NILP (charset))
+	return 0;
+#else
+      return 0;
+#endif
+    }
+
+  /* Don't allocate the data until we're sure that we will succeed. */
+#ifdef NEW_GC
+  f->data = alloc_lrecord_type (struct tty_font_instance_data,
+				&lrecord_tty_font_instance_data);
+#else /* not NEW_GC */
+  f->data = xnew (struct tty_font_instance_data);
+#endif /* not NEW_GC */
+  FONT_INSTANCE_TTY_CHARSET (f) = charset;
+#ifdef MULE
+  if (CHARSETP (charset))
+    f->width = XCHARSET_COLUMNS (charset);
+  else
+#endif
+    f->width = 1;
+
+  f->proportional_p = 0;
+  f->ascent = f->height = 1;
+  f->descent = 0;
+
+  return 1;
+}
+
+static void
+tty_mark_font_instance (Lisp_Font_Instance *f)
+{
+  mark_object (FONT_INSTANCE_TTY_CHARSET (f));
+}
+
+static void
+tty_print_font_instance (Lisp_Font_Instance *UNUSED (f),
+			 Lisp_Object UNUSED (printcharfun),
+			 int UNUSED (escapeflag))
+{
+}
+
+static void
+tty_finalize_font_instance (Lisp_Font_Instance *UNUSED_IF_NEW_GC (f))
+{
+#ifndef NEW_GC
+  if (f->data)
+    xfree (f->data);
+#endif /* not NEW_GC */
+}
+
+static Lisp_Object
+tty_font_list (Lisp_Object UNUSED (pattern), Lisp_Object UNUSED (device),
+		Lisp_Object UNUSED (maxnumber))
+{
+  return list1 (build_ascstring ("normal"));
+}
+
+#ifdef MULE
+
+static int
+tty_font_spec_matches_charset (struct device *UNUSED (d), Lisp_Object charset,
+			       const Ibyte *nonreloc, Lisp_Object reloc,
+			       Bytecount offset, Bytecount length,
+			       enum font_specifier_matchspec_stages stage)
+{
+  const Ibyte *the_nonreloc = nonreloc;
+
+  if (stage == STAGE_FINAL)
+    return 0;
+
+  if (!the_nonreloc)
+    the_nonreloc = XSTRING_DATA (reloc);
+  fixup_internal_substring (nonreloc, reloc, offset, &length);
+  the_nonreloc += offset;
+
+  if (NILP (charset))
+    return !memchr (the_nonreloc, '/', length);
+  the_nonreloc = (const Ibyte *) memchr (the_nonreloc, '/', length);
+  if (!the_nonreloc)
+    return 0;
+  the_nonreloc++;
+  {
+    Lisp_Object s = symbol_name (XSYMBOL (XCHARSET_NAME (charset)));
+    return !qxestrcmp (the_nonreloc, XSTRING_DATA (s));
+  }
+}
+
+/* find a font spec that matches font spec FONT and also matches
+   (the registry of) CHARSET. */
+static Lisp_Object
+tty_find_charset_font (Lisp_Object device, Lisp_Object font,
+		       Lisp_Object charset, 
+		       enum font_specifier_matchspec_stages stage)
+{
+  Ibyte *fontname = XSTRING_DATA (font);
+
+  if (stage == STAGE_FINAL)
+    return Qnil;
+
+  if (strchr ((const char *) fontname, '/'))
+    {
+      if (tty_font_spec_matches_charset (XDEVICE (device), charset, 0,
+					 font, 0, -1, STAGE_INITIAL))
+	return font;
+      return Qnil;
+    }
+
+  if (NILP (charset))
+    return font;
+
+  return concat3 (font, build_ascstring ("/"),
+		  Fsymbol_name (XCHARSET_NAME (charset)));
+}
+
+#endif /* MULE */
+
+
+/************************************************************************/
+/*                            initialization                            */
+/************************************************************************/
+
+void
+syms_of_fontcolor_tty (void)
+{
+#ifdef NEW_GC
+  INIT_LRECORD_IMPLEMENTATION (tty_color_instance_data);
+  INIT_LRECORD_IMPLEMENTATION (tty_font_instance_data);
+#endif /* NEW_GC */
+
+  DEFSUBR (Fregister_tty_color);
+  DEFSUBR (Funregister_tty_color);
+  DEFSUBR (Ffind_tty_color);
+#if 0
+  DEFSUBR (Fset_tty_dynamic_color_specs);
+  DEFSUBR (Ftty_dynamic_color_specs);
+#endif
+}
+
+void
+console_type_create_fontcolor_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, color_list);
+
+  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, font_list);
+#ifdef MULE
+  CONSOLE_HAS_METHOD (tty, font_spec_matches_charset);
+  CONSOLE_HAS_METHOD (tty, find_charset_font);
+#endif
+}
+
+void
+vars_of_fontcolor_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
+}