/* Fontset handler.
- Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008
+ 2005, 2006, 2007, 2008, 2009, 2010
National Institute of Advanced Industrial Science and Technology (AIST)
Registration Number H14PRO021
Copyright (C) 2003, 2006
/* #define FONTSET_DEBUG */
#include <config.h>
-
-#ifdef FONTSET_DEBUG
#include <stdio.h>
-#endif
+#include <setjmp.h>
#include "lisp.h"
#include "blockinput.h"
#ifdef WINDOWSNT
#include "w32term.h"
#endif
-#ifdef MAC_OS
-#include "macterm.h"
+#ifdef HAVE_NS
+#include "nsterm.h"
#endif
#include "termhooks.h"
An element of a base fontset is a vector of FONT-DEFs which itself
is a vector [ FONT-SPEC ENCODING REPERTORY ].
- An element of a realized fontset is nil, t, or a vector of this form:
+ An element of a realized fontset is nil, t, 0, or a vector of this
+ form:
[ CHARSET-ORDERED-LIST-TICK PREFERRED-RFONT-DEF
RFONT-DEF0 RFONT-DEF1 ... ]
The value t means that no font is available for the corresponding
range of characters.
+ The value 0 means that no font is available for the corresponding
+ range of characters in this fontset, but may be available in the
+ default fontset.
+
A fontset has 9 extra slots.
/********** VARIABLES and FUNCTION PROTOTYPES **********/
-extern Lisp_Object Qfont;
static Lisp_Object Qfontset;
static Lisp_Object Qfontset_info;
static Lisp_Object Qprepend, Qappend;
-static Lisp_Object Qlatin;
+Lisp_Object Qlatin;
/* Vector containing all fontsets. */
static Lisp_Object Vfontset_table;
Lisp_Object Votf_script_alist;
/* Check if any window system is used now. */
-void (*check_window_system_func) P_ ((void));
+void (*check_window_system_func) (void);
/* Prototype declarations for static functions. */
-static Lisp_Object fontset_add P_ ((Lisp_Object, Lisp_Object, Lisp_Object,
- Lisp_Object));
-static Lisp_Object fontset_find_font P_ ((Lisp_Object, int, struct face *,
- int, int));
-static void reorder_font_vector P_ ((Lisp_Object, Lisp_Object));
-static Lisp_Object fontset_font P_ ((Lisp_Object, int, struct face *, int));
-static Lisp_Object make_fontset P_ ((Lisp_Object, Lisp_Object, Lisp_Object));
-static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object));
-static void accumulate_script_ranges P_ ((Lisp_Object, Lisp_Object,
- Lisp_Object));
-Lisp_Object find_font_encoding P_ ((Lisp_Object));
-
-static void set_fontset_font P_ ((Lisp_Object, Lisp_Object));
+static Lisp_Object fontset_add (Lisp_Object, Lisp_Object, Lisp_Object,
+ Lisp_Object);
+static Lisp_Object fontset_find_font (Lisp_Object, int, struct face *,
+ int, int);
+static void reorder_font_vector (Lisp_Object, struct font *);
+static Lisp_Object fontset_font (Lisp_Object, int, struct face *, int);
+static Lisp_Object make_fontset (Lisp_Object, Lisp_Object, Lisp_Object);
+static Lisp_Object fontset_pattern_regexp (Lisp_Object);
+static void accumulate_script_ranges (Lisp_Object, Lisp_Object,
+ Lisp_Object);
+Lisp_Object find_font_encoding (Lisp_Object);
+
+static void set_fontset_font (Lisp_Object, Lisp_Object);
#ifdef FONTSET_DEBUG
: fontset_ref ((fontset), (c)))
static Lisp_Object
-fontset_ref (fontset, c)
- Lisp_Object fontset;
- int c;
+fontset_ref (Lisp_Object fontset, int c)
{
Lisp_Object elt;
: fontset_add ((fontset), (range), (elt), (add)))
static Lisp_Object
-fontset_add (fontset, range, elt, add)
- Lisp_Object fontset, range, elt, add;
+fontset_add (Lisp_Object fontset, Lisp_Object range, Lisp_Object elt, Lisp_Object add)
{
Lisp_Object args[2];
int idx = (EQ (add, Qappend) ? 0 : 1);
int from1, to1;
do {
+ from1 = from, to1 = to;
args[idx] = char_table_ref_and_range (fontset, from, &from1, &to1);
- if (to < to1)
- to1 = to;
char_table_set_range (fontset, from, to1,
NILP (args[idx]) ? args[1 - idx]
: Fvconcat (2, args));
}
static int
-fontset_compare_rfontdef (val1, val2)
- const void *val1, *val2;
+fontset_compare_rfontdef (const void *val1, const void *val2)
{
- return (RFONT_DEF_SCORE (*(Lisp_Object *) val2)
- - RFONT_DEF_SCORE (*(Lisp_Object *) val1));
+ return (RFONT_DEF_SCORE (*(Lisp_Object *) val1)
+ - RFONT_DEF_SCORE (*(Lisp_Object *) val2));
}
/* Update FONT-GROUP which has this form:
If PREFERRED_FAMILY is not nil, that family has the higher priority
if the encoding charsets or languages in font-specs are the same. */
-extern Lisp_Object Fassoc_string ();
-
static void
-reorder_font_vector (font_group, preferred_family)
- Lisp_Object font_group;
- Lisp_Object preferred_family;
+reorder_font_vector (Lisp_Object font_group, struct font *font)
{
+ Lisp_Object vec, font_object;
int size;
int i;
int score_changed = 0;
- size = ASIZE (font_group);
- /* Exclude the tailing nil elements from the reordering. */
- while (NILP (AREF (font_group, size - 1))) size--;
- size -= 2;
+ if (font)
+ XSETFONT (font_object, font);
+ else
+ font_object = Qnil;
+
+ vec = XCDR (font_group);
+ size = ASIZE (vec);
+ /* Exclude the tailing nil element from the reordering. */
+ if (NILP (AREF (vec, size - 1)))
+ size--;
for (i = 0; i < size; i++)
{
- Lisp_Object rfont_def = AREF (font_group, i + 2);
+ Lisp_Object rfont_def = AREF (vec, i);
Lisp_Object font_def = RFONT_DEF_FONT_DEF (rfont_def);
Lisp_Object font_spec = FONT_DEF_SPEC (font_def);
- Lisp_Object lang = Ffont_get (font_spec, QClang);
- Lisp_Object family = AREF (font_spec, FONT_FAMILY_INDEX);
- Lisp_Object repertory = FONT_DEF_REPERTORY (font_def);
- int score = 0;
+ int score = RFONT_DEF_SCORE (rfont_def) & 0xFF;
- if (! NILP (repertory))
+ if (! font_match_p (font_spec, font_object))
{
- Lisp_Object tail;
+ Lisp_Object encoding = FONT_DEF_ENCODING (font_def);
- for (score = 0xFFFF, tail = Vcharset_ordered_list;
- ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail);
- score--, tail = XCDR (tail))
- if (EQ (repertory, XCAR (tail)))
- break;
- if (EQ (tail, Vcharset_non_preferred_head))
- score = 0;
- }
- else if (! NILP (lang))
- {
- if (EQ (lang, Vcurrent_iso639_language))
- score = 0xFFFF;
- else if (CONSP (Vcurrent_iso639_language))
- score = ! NILP (Fmemq (lang, Vcurrent_iso639_language));
- }
+ if (! NILP (encoding))
+ {
+ Lisp_Object tail;
- if (! NILP (preferred_family) && ! NILP (family))
- {
- if (fast_string_match_ignore_case (preferred_family,
- SYMBOL_NAME (family)) < 0)
- score |= 0x10000;
+ for (tail = Vcharset_ordered_list;
+ ! EQ (tail, Vcharset_non_preferred_head) && CONSP (tail);
+ score += 0x100, tail = XCDR (tail))
+ if (EQ (encoding, XCAR (tail)))
+ break;
+ }
+ else
+ {
+ Lisp_Object lang = Ffont_get (font_spec, QClang);
+
+ if (! NILP (lang)
+ && ! EQ (lang, Vcurrent_iso639_language)
+ && (! CONSP (Vcurrent_iso639_language)
+ || NILP (Fmemq (lang, Vcurrent_iso639_language))))
+ score |= 0x100;
+ }
}
if (RFONT_DEF_SCORE (rfont_def) != score)
{
}
if (score_changed)
- qsort (XVECTOR (font_group)->contents + 2, size, sizeof (Lisp_Object),
+ qsort (XVECTOR (vec)->contents, size, sizeof (Lisp_Object),
fontset_compare_rfontdef);
+ XSETCAR (font_group, make_number (charset_ordered_list_tick));
+}
+
+/* Return a font-group (actually a cons (-1 . FONT-GROUP-VECTOR)) for
+ character C in FONTSET. If C is -1, return a fallback font-group.
+ If C is not -1, the value may be Qt (FONTSET doesn't have a font
+ for C even in the fallback group, or 0 (a font for C may be found
+ only in the fallback group). */
+
+static Lisp_Object
+fontset_get_font_group (Lisp_Object fontset, int c)
+{
+ Lisp_Object font_group;
+ Lisp_Object base_fontset;
+ int from = 0, to = MAX_CHAR, i;
- ASET (font_group, 0, make_number (charset_ordered_list_tick));
+ xassert (! BASE_FONTSET_P (fontset));
+ if (c >= 0)
+ font_group = CHAR_TABLE_REF (fontset, c);
+ else
+ font_group = FONTSET_FALLBACK (fontset);
+ if (! NILP (font_group))
+ return font_group;
+ base_fontset = FONTSET_BASE (fontset);
+ if (c >= 0)
+ font_group = char_table_ref_and_range (base_fontset, c, &from, &to);
+ else
+ font_group = FONTSET_FALLBACK (base_fontset);
+ if (NILP (font_group))
+ {
+ font_group = make_number (0);
+ if (c >= 0)
+ char_table_set_range (fontset, from, to, font_group);
+ return font_group;
+ }
+ font_group = Fcopy_sequence (font_group);
+ for (i = 0; i < ASIZE (font_group); i++)
+ if (! NILP (AREF (font_group, i)))
+ {
+ Lisp_Object rfont_def;
+
+ RFONT_DEF_NEW (rfont_def, AREF (font_group, i));
+ /* Remember the original order. */
+ RFONT_DEF_SET_SCORE (rfont_def, i);
+ ASET (font_group, i, rfont_def);
+ }
+ font_group = Fcons (make_number (-1), font_group);
+ if (c >= 0)
+ char_table_set_range (fontset, from, to, font_group);
+ else
+ FONTSET_FALLBACK (fontset) = font_group;
+ return font_group;
}
/* Return RFONT-DEF (vector) in the realized fontset FONTSET for the
If FALLBACK is nonzero, search only fallback fonts. */
static Lisp_Object
-fontset_find_font (fontset, c, face, id, fallback)
- Lisp_Object fontset;
- int c;
- struct face *face;
- int id, fallback;
+fontset_find_font (Lisp_Object fontset, int c, struct face *face, int id, int fallback)
{
- Lisp_Object base_fontset, elt, vec;
- int i, from, to;
- FRAME_PTR f = XFRAME (FONTSET_FRAME (fontset));
+ Lisp_Object vec, font_group;
+ int i, charset_matched = 0, found_index;
+ FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset))
+ ? XFRAME (FONTSET_FRAME (fontset)) : XFRAME (selected_frame));
+ Lisp_Object rfont_def;
- base_fontset = FONTSET_BASE (fontset);
- if (! fallback)
- vec = CHAR_TABLE_REF (fontset, c);
- else
- vec = FONTSET_FALLBACK (fontset);
+ font_group = fontset_get_font_group (fontset, fallback ? -1 : c);
+ if (! CONSP (font_group))
+ return font_group;
+ vec = XCDR (font_group);
+ if (ASIZE (vec) == 0)
+ return Qnil;
- if (NILP (vec))
+ if (ASIZE (vec) > 1)
{
- Lisp_Object range;
-
- /* We have not yet decided a font for C. */
- if (! face)
- return Qnil;
- if (! fallback)
- {
- elt = char_table_ref_and_range (base_fontset, c, &from, &to);
- range = Fcons (make_number (from), make_number (to));
- }
- else
- {
- elt = FONTSET_FALLBACK (base_fontset);
- }
- if (NILP (elt))
- {
- /* This fontset doesn't specify any font for C. */
- vec = make_number (0);
- }
- else if (ASIZE (elt) == 1 && NILP (AREF (elt, 0)))
- {
- /* Explicitly specified no font. */
- vec = Qt;
- }
- else
- {
- /* Build a font-group vector [ -1 nil RFONT-DEF0 RFONT-DEF1 ... ],
- where the first -1 is to force reordering of RFONT-DEFs. */
- int size = ASIZE (elt);
- int j;
+ if (XINT (XCAR (font_group)) != charset_ordered_list_tick)
+ /* We have just created the font-group,
+ or the charset priorities were changed. */
+ reorder_font_vector (font_group, face->ascii_face->font);
+ if (id >= 0)
+ /* Find a spec matching with the charset ID to try at
+ first. */
+ for (i = 0; i < ASIZE (vec); i++)
+ {
+ Lisp_Object repertory;
+
+ rfont_def = AREF (vec, i);
+ if (NILP (rfont_def))
+ break;
+ repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def));
- vec = Fmake_vector (make_number (size + 2), Qnil);
- ASET (vec, 0, make_number (-1));
- for (i = j = 0; i < size; i++)
- if (! NILP (AREF (elt, i)))
+ if (XINT (repertory) == id)
{
- Lisp_Object rfont_def;
-
- RFONT_DEF_NEW (rfont_def, AREF (elt, i));
- ASET (vec, j + 2, rfont_def);
- j++;
+ charset_matched = i;
+ break;
}
- }
- /* Then store it in the fontset. */
- if (! fallback)
- FONTSET_SET (fontset, range, vec);
- else
- FONTSET_FALLBACK (fontset) = vec;
-
+ }
}
- if (! VECTORP (vec))
- return (EQ (vec, Qt) ? Qt : Qnil);
-
- if (ASIZE (vec) > 4 /* multiple RFONT-DEFs */
- && XINT (AREF (vec, 0)) != charset_ordered_list_tick)
- /* We have just created VEC,
- or the charset priorities were changed. */
- reorder_font_vector (vec, face->lface[LFACE_FAMILY_INDEX]);
- i = 2;
- if (id >= 0)
+
+ /* Find the first available font in the vector of RFONT-DEF. */
+ for (i = 0; i < ASIZE (vec); i++)
{
- elt = AREF (vec, 1);
- if (! NILP (elt)
- && EQ (make_number (id), RFONT_DEF_REPERTORY (elt)))
- i = 1;
- else
+ Lisp_Object font_def;
+ Lisp_Object font_entity, font_object;
+
+ found_index = i;
+ if (i == 0)
{
- for (; i < ASIZE (vec); i++)
- {
- elt = AREF (vec, i);
- if (! NILP (elt)
- && EQ (make_number (id), RFONT_DEF_REPERTORY (elt)))
- break;
- }
- if (i < ASIZE (vec))
+ if (charset_matched > 0)
{
- ASET (vec, 1, elt);
- i = 1;
+ /* Try the element matching with the charset ID at first. */
+ found_index = charset_matched;
+ /* Make this negative so that we don't come here in the
+ next loop. */
+ charset_matched = - charset_matched;
+ /* We must try the first element in the next loop. */
+ i--;
}
- else
+ }
+ else if (i == - charset_matched)
+ {
+ /* We have already tried this element and the followings
+ that have the same font specifications in the first
+ iteration. So, skip them all. */
+ rfont_def = AREF (vec, i);
+ font_def = RFONT_DEF_FONT_DEF (rfont_def);
+ for (; i + 1 < ASIZE (vec); i++)
{
- ASET (vec, 1, Qnil);
- i = 2;
+ rfont_def = AREF (vec, i + 1);
+ if (NILP (rfont_def))
+ break;
+ if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def))
+ break;
}
+ continue;
}
- }
- /* Find the first available font in the vector of RFONT-DEF. */
- for (; i < ASIZE (vec); i++)
- {
- Lisp_Object font_entity, font_object;
-
- elt = AREF (vec, i);
- if (NILP (elt))
- /* This is the sign of not to try fallback fonts. */
- return Qt;
- if (id >= 0 && i > 1 && EQ (AREF (vec, 1), elt))
- /* This is already checked. */
- continue;
- if (INTEGERP (RFONT_DEF_FACE (elt))
- && XINT (AREF (elt, 1)) < 0)
+ rfont_def = AREF (vec, found_index);
+ if (NILP (rfont_def))
+ {
+ if (i < 0)
+ continue;
+ /* This is a sign of not to try the other fonts. */
+ return Qt;
+ }
+ if (INTEGERP (RFONT_DEF_FACE (rfont_def))
+ && XINT (RFONT_DEF_FACE (rfont_def)) < 0)
/* We couldn't open this font last time. */
continue;
- font_object = RFONT_DEF_OBJECT (elt);
+ font_object = RFONT_DEF_OBJECT (rfont_def);
if (NILP (font_object))
{
- Lisp_Object font_def = RFONT_DEF_FONT_DEF (elt);
+ font_def = RFONT_DEF_FONT_DEF (rfont_def);
if (! face)
/* We have not yet opened the font. */
return Qnil;
+ /* Find a font best-matching with the spec without checking
+ the support of the character C. That checking is costly,
+ and even without the checking, the found font supports C
+ in high possibility. */
font_entity = font_find_for_lface (f, face->lface,
FONT_DEF_SPEC (font_def), -1);
if (NILP (font_entity))
{
/* Record that no font matches the spec. */
- RFONT_DEF_SET_FACE (elt, -1);
+ RFONT_DEF_SET_FACE (rfont_def, -1);
continue;
}
- font_object = font_open_for_lface (f, font_entity, face->lface, Qnil);
+ font_object = font_open_for_lface (f, font_entity, face->lface,
+ FONT_DEF_SPEC (font_def));
if (NILP (font_object))
{
- /* Record that the font is unsable. */
- RFONT_DEF_SET_FACE (elt, -1);
+ /* Something strange happened, perhaps because of a
+ Font-backend problem. Too avoid crashing, record
+ that this spec is unsable. It may be better to find
+ another font of the same spec, but currently we don't
+ have such an API. */
+ RFONT_DEF_SET_FACE (rfont_def, -1);
continue;
}
- RFONT_DEF_SET_OBJECT (elt, font_object);
+ RFONT_DEF_SET_OBJECT (rfont_def, font_object);
}
if (font_has_char (f, font_object, c))
- return elt;
+ goto found;
-#if 0
- /* The following code makes Emacs to find a font for C by fairly
- exhausitive search. But, that takes long time especially for
- X font backend. */
-
- /* Try to find the different font maching with the current spec
- and support C. */
- font_def = RFONT_DEF_FONT_DEF (elt);
- for (i++; i < ASIZE (vec); i++)
+ /* Find a font already opened, maching with the current spec,
+ and supporting C. */
+ font_def = RFONT_DEF_FONT_DEF (rfont_def);
+ for (; found_index + 1 < ASIZE (vec); found_index++)
{
- if (! EQ (RFONT_DEF_FONT_DEF (AREF (vec, i)), font_def))
+ rfont_def = AREF (vec, found_index + 1);
+ if (NILP (rfont_def))
+ break;
+ if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def))
break;
- if (font_has_char (f, RFONT_DEF_OBJECT (AREF (vec, i)), c))
- return AREF (vec, i);
+ font_object = RFONT_DEF_OBJECT (rfont_def);
+ if (! NILP (font_object) && font_has_char (f, font_object, c))
+ {
+ found_index++;
+ goto found;
+ }
}
- /* Find an font-entity that support C. */
+
+ /* Find a font-entity with the current spec and supporting C. */
font_entity = font_find_for_lface (f, face->lface,
FONT_DEF_SPEC (font_def), c);
if (! NILP (font_entity))
{
- Lisp_Object rfont_def, new_vec;
+ /* We found a font. Open it and insert a new element for
+ that font in VEC. */
+ Lisp_Object new_vec;
int j;
font_object = font_open_for_lface (f, font_entity, face->lface,
Qnil);
+ if (NILP (font_object))
+ continue;
RFONT_DEF_NEW (rfont_def, font_def);
RFONT_DEF_SET_OBJECT (rfont_def, font_object);
- RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (elt));
+ RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def));
new_vec = Fmake_vector (make_number (ASIZE (vec) + 1), Qnil);
- for (j = 0; j < i; j++)
+ found_index++;
+ for (j = 0; j < found_index; j++)
ASET (new_vec, j, AREF (vec, j));
ASET (new_vec, j, rfont_def);
for (j++; j < ASIZE (new_vec); j++)
ASET (new_vec, j, AREF (vec, j - 1));
+ XSETCDR (font_group, new_vec);
vec = new_vec;
- return rfont_def;
+ goto found;
}
- i--;
-#endif /* 0 */
+ if (i >= 0)
+ i = found_index;
}
FONTSET_SET (fontset, make_number (c), make_number (0));
return Qnil;
+
+ found:
+ if (fallback && found_index > 0)
+ {
+ /* The order of fonts in the fallback font-group is not that
+ important, and it is better to move the found font to the
+ first of the group so that the next try will find it
+ quickly. */
+ for (i = found_index; i > 0; i--)
+ ASET (vec, i, AREF (vec, i - 1));
+ ASET (vec, 0, rfont_def);
+ }
+ return rfont_def;
}
static Lisp_Object
-fontset_font (fontset, c, face, id)
- Lisp_Object fontset;
- int c;
- struct face *face;
- int id;
+fontset_font (Lisp_Object fontset, int c, struct face *face, int id)
{
- Lisp_Object rfont_def;
+ Lisp_Object rfont_def, default_rfont_def;
Lisp_Object base_fontset;
- /* Try a font-group for C. */
+ /* Try a font-group of FONTSET. */
+ FONT_DEFERRED_LOG ("current fontset: font for", make_number (c), Qnil);
rfont_def = fontset_find_font (fontset, c, face, id, 0);
if (VECTORP (rfont_def))
return rfont_def;
- if (EQ (rfont_def, Qt))
- return Qnil;
- /* Try a fallback font-group. */
- rfont_def = fontset_find_font (fontset, c, face, id, 1);
- if (VECTORP (rfont_def))
- return rfont_def;
- if (EQ (rfont_def, Qt))
- return Qnil;
+ if (NILP (rfont_def))
+ FONTSET_SET (fontset, make_number (c), make_number (0));
+ /* Try a font-group of the default fontset. */
base_fontset = FONTSET_BASE (fontset);
- if (EQ (base_fontset, Vdefault_fontset))
- return Qnil;
+ if (! EQ (base_fontset, Vdefault_fontset))
+ {
+ if (NILP (FONTSET_DEFAULT (fontset)))
+ FONTSET_DEFAULT (fontset)
+ = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset);
+ FONT_DEFERRED_LOG ("default fontset: font for", make_number (c), Qnil);
+ default_rfont_def
+ = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0);
+ if (VECTORP (default_rfont_def))
+ return default_rfont_def;
+ if (NILP (default_rfont_def))
+ FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c),
+ make_number (0));
+ }
- /* Try a font-group for C of the default fontset. */
- if (NILP (FONTSET_DEFAULT (fontset)))
- FONTSET_DEFAULT (fontset)
- = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset);
- rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 0);
- if (VECTORP (rfont_def))
- return rfont_def;
- /* Try a fallback font-group of the default fontset . */
- rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1);
- if (! VECTORP (rfont_def))
- /* Remeber that we have no font for C. */
- FONTSET_SET (fontset, make_number (c), Qt);
+ /* Try a fallback font-group of FONTSET. */
+ if (! EQ (rfont_def, Qt))
+ {
+ FONT_DEFERRED_LOG ("current fallback: font for", make_number (c), Qnil);
+ rfont_def = fontset_find_font (fontset, c, face, id, 1);
+ if (VECTORP (rfont_def))
+ return rfont_def;
+ /* Remember that FONTSET has no font for C. */
+ FONTSET_SET (fontset, make_number (c), Qt);
+ }
- return rfont_def;
+ /* Try a fallback font-group of the default fontset. */
+ if (! EQ (base_fontset, Vdefault_fontset)
+ && ! EQ (default_rfont_def, Qt))
+ {
+ FONT_DEFERRED_LOG ("default fallback: font for", make_number (c), Qnil);
+ rfont_def = fontset_find_font (FONTSET_DEFAULT (fontset), c, face, id, 1);
+ if (VECTORP (rfont_def))
+ return rfont_def;
+ /* Remember that the default fontset has no font for C. */
+ FONTSET_SET (FONTSET_DEFAULT (fontset), make_number (c), Qt);
+ }
+
+ return Qnil;
}
/* Return a newly created fontset with NAME. If BASE is nil, make a
BASE. */
static Lisp_Object
-make_fontset (frame, name, base)
- Lisp_Object frame, name, base;
+make_fontset (Lisp_Object frame, Lisp_Object name, Lisp_Object base)
{
Lisp_Object fontset;
int size = ASIZE (Vfontset_table);
return fontset;
}
-
-/* Set the ASCII font of the default fontset to FONTNAME if that is
- not yet set. */
-void
-set_default_ascii_font (fontname)
- Lisp_Object fontname;
-{
- if (! STRINGP (FONTSET_ASCII (Vdefault_fontset)))
- {
- int id = fs_query_fontset (fontname, 2);
-
- if (id >= 0)
- fontname = FONTSET_ASCII (FONTSET_FROM_ID (id));
- FONTSET_ASCII (Vdefault_fontset)= fontname;
- }
-}
-
\f
/********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/
/* Return the name of the fontset who has ID. */
Lisp_Object
-fontset_name (id)
- int id;
+fontset_name (int id)
{
Lisp_Object fontset;
/* Return the ASCII font name of the fontset who has ID. */
Lisp_Object
-fontset_ascii (id)
- int id;
+fontset_ascii (int id)
{
Lisp_Object fontset, elt;
}
void
-free_realized_fontset (f, fontset)
- FRAME_PTR f;
- Lisp_Object fontset;
+free_realized_fontset (FRAME_PTR f, Lisp_Object fontset)
{
Lisp_Object tail;
free_realized_face. */
void
-free_face_fontset (f, face)
- FRAME_PTR f;
- struct face *face;
+free_face_fontset (FRAME_PTR f, struct face *face)
{
Lisp_Object fontset;
when C is not an ASCII character. */
int
-face_suitable_for_char_p (face, c)
- struct face *face;
- int c;
+face_suitable_for_char_p (struct face *face, int c)
{
Lisp_Object fontset, rfont_def;
the macro FACE_FOR_CHAR. */
int
-face_for_char (f, face, c, pos, object)
- FRAME_PTR f;
- struct face *face;
- int c, pos;
- Lisp_Object object;
+face_for_char (FRAME_PTR f, struct face *face, int c, int pos, Lisp_Object object)
{
- Lisp_Object fontset, rfont_def;
+ Lisp_Object fontset, rfont_def, charset;
int face_id;
int id;
- if (ASCII_CHAR_P (c))
+ /* If face->fontset is negative (that happens when no font is found
+ for face), just return face->ascii_face because we can't do
+ anything. Perhaps, we should fix the callers to assure
+ that face->fontset is always valid. */
+ if (ASCII_CHAR_P (c) || face->fontset < 0)
return face->ascii_face->id;
xassert (fontset_id_valid_p (face->fontset));
fontset = FONTSET_FROM_ID (face->fontset);
xassert (!BASE_FONTSET_P (fontset));
+
if (pos < 0)
- id = -1;
+ {
+ id = -1;
+ charset = Qnil;
+ }
else
{
- Lisp_Object charset;
-
charset = Fget_char_property (make_number (pos), Qcharset, object);
- if (NILP (charset))
- id = -1;
- else if (CHARSETP (charset))
+ if (CHARSETP (charset))
{
Lisp_Object val;
- val = assoc_no_quit (charset, Vfont_encoding_charset_alist);
+ val = assq_no_quit (charset, Vfont_encoding_charset_alist);
if (CONSP (val) && CHARSETP (XCDR (val)))
charset = XCDR (val);
id = XINT (CHARSET_SYMBOL_ID (charset));
}
- }
- if (id < 0)
- {
- struct font *font = face->ascii_face->font;
-
- if (font && font->driver->encode_char (font, c) != FONT_INVALID_CODE)
- return face->ascii_face->id;
- font = face->font;
- if (font && font->driver->encode_char (font, c) != FONT_INVALID_CODE)
- return face->id;
+ else
+ id = -1;
}
rfont_def = fontset_font (fontset, c, face, id);
}
+Lisp_Object
+font_for_char (struct face *face, int c, int pos, Lisp_Object object)
+{
+ Lisp_Object fontset, rfont_def, charset;
+ int id;
+
+ if (ASCII_CHAR_P (c))
+ {
+ Lisp_Object font_object;
+
+ XSETFONT (font_object, face->ascii_face->font);
+ return font_object;
+ }
+
+ xassert (fontset_id_valid_p (face->fontset));
+ fontset = FONTSET_FROM_ID (face->fontset);
+ xassert (!BASE_FONTSET_P (fontset));
+ if (pos < 0)
+ {
+ id = -1;
+ charset = Qnil;
+ }
+ else
+ {
+ charset = Fget_char_property (make_number (pos), Qcharset, object);
+ if (CHARSETP (charset))
+ {
+ Lisp_Object val;
+
+ val = assq_no_quit (charset, Vfont_encoding_charset_alist);
+ if (CONSP (val) && CHARSETP (XCDR (val)))
+ charset = XCDR (val);
+ id = XINT (CHARSET_SYMBOL_ID (charset));
+ }
+ else
+ id = -1;
+ }
+
+ rfont_def = fontset_font (fontset, c, face, id);
+ return (VECTORP (rfont_def)
+ ? RFONT_DEF_OBJECT (rfont_def)
+ : Qnil);
+}
+
+
/* Make a realized fontset for ASCII face FACE on frame F from the
base fontset BASE_FONTSET_ID. If BASE_FONTSET_ID is -1, use the
default fontset as the base. Value is the id of the new fontset.
Called from realize_x_face. */
int
-make_fontset_for_ascii_face (f, base_fontset_id, face)
- FRAME_PTR f;
- int base_fontset_id;
- struct face *face;
+make_fontset_for_ascii_face (FRAME_PTR f, int base_fontset_id, struct face *face)
{
Lisp_Object base_fontset, fontset, frame;
expression corresponding to PATTERN. */
static Lisp_Object
-fontset_pattern_regexp (pattern)
- Lisp_Object pattern;
+fontset_pattern_regexp (Lisp_Object pattern)
{
- if (!index ((char *) SDATA (pattern), '*')
- && !index ((char *) SDATA (pattern), '?'))
+ if (!strchr ((char *) SDATA (pattern), '*')
+ && !strchr ((char *) SDATA (pattern), '?'))
/* PATTERN does not contain any wild cards. */
return Qnil;
{
/* We must at first update the cached data. */
unsigned char *regex, *p0, *p1;
- int ndashes = 0, nstars = 0;
+ int ndashes = 0, nstars = 0, nescs = 0;
for (p0 = SDATA (pattern); *p0; p0++)
{
ndashes++;
else if (*p0 == '*')
nstars++;
+ else if (*p0 == '['
+ || *p0 == '.' || *p0 == '\\'
+ || *p0 == '+' || *p0 == '^'
+ || *p0 == '$')
+ nescs++;
}
/* If PATTERN is not full XLFD we conert "*" to ".*". Otherwise
we convert "*" to "[^-]*" which is much faster in regular
expression matching. */
if (ndashes < 14)
- p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 1);
+ p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 2 * nstars + 2 * nescs + 1);
else
- p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 1);
+ p1 = regex = (unsigned char *) alloca (SBYTES (pattern) + 5 * nstars + 2 * nescs + 1);
*p1++ = '^';
for (p0 = SDATA (pattern); *p0; p0++)
}
else if (*p0 == '?')
*p1++ = '.';
+ else if (*p0 == '['
+ || *p0 == '.' || *p0 == '\\'
+ || *p0 == '+' || *p0 == '^'
+ || *p0 == '$')
+ *p1++ = '\\', *p1++ = *p0;
else
*p1++ = *p0;
}
*/
int
-fs_query_fontset (name, name_pattern)
- Lisp_Object name;
- int name_pattern;
+fs_query_fontset (Lisp_Object name, int name_pattern)
{
Lisp_Object tem;
int i;
PATTERN can contain `*' or `?' as a wildcard
just as X font name matching algorithm allows.
If REGEXPP is non-nil, PATTERN is a regular expression. */)
- (pattern, regexpp)
- Lisp_Object pattern, regexpp;
+ (Lisp_Object pattern, Lisp_Object regexpp)
{
Lisp_Object fontset;
int id;
/* Return a list of base fontset names matching PATTERN on frame F. */
Lisp_Object
-list_fontsets (f, pattern, size)
- FRAME_PTR f;
- Lisp_Object pattern;
- int size;
+list_fontsets (FRAME_PTR f, Lisp_Object pattern, int size)
{
Lisp_Object frame, regexp, val;
int id;
/* Free all realized fontsets whose base fontset is BASE. */
static void
-free_realized_fontsets (base)
- Lisp_Object base;
+free_realized_fontsets (Lisp_Object base)
{
int id;
/* Check validity of NAME as a fontset name and return the
corresponding fontset. If not valid, signal an error.
- If NAME is t, return Vdefault_fontset. */
+
+ If NAME is t, return Vdefault_fontset. If NAME is nil, return the
+ fontset of *FRAME.
+
+ Set *FRAME to the actual frame. */
static Lisp_Object
-check_fontset_name (name)
- Lisp_Object name;
+check_fontset_name (Lisp_Object name, Lisp_Object *frame)
{
int id;
+ if (NILP (*frame))
+ *frame = selected_frame;
+ CHECK_LIVE_FRAME (*frame);
+
if (EQ (name, Qt))
return Vdefault_fontset;
-
- CHECK_STRING (name);
- /* First try NAME as literal. */
- id = fs_query_fontset (name, 2);
- if (id < 0)
- /* For backward compatibility, try again NAME as pattern. */
- id = fs_query_fontset (name, 0);
- if (id < 0)
- error ("Fontset `%s' does not exist", SDATA (name));
+ if (NILP (name))
+ {
+ id = FRAME_FONTSET (XFRAME (*frame));
+ }
+ else
+ {
+ CHECK_STRING (name);
+ /* First try NAME as literal. */
+ id = fs_query_fontset (name, 2);
+ if (id < 0)
+ /* For backward compatibility, try again NAME as pattern. */
+ id = fs_query_fontset (name, 0);
+ if (id < 0)
+ error ("Fontset `%s' does not exist", SDATA (name));
+ }
return FONTSET_FROM_ID (id);
}
static void
-accumulate_script_ranges (arg, range, val)
- Lisp_Object arg, range, val;
+accumulate_script_ranges (Lisp_Object arg, Lisp_Object range, Lisp_Object val)
{
if (EQ (XCAR (arg), val))
{
}
-/* Return an ASCII font name generated from fontset name NAME and
- font-spec ASCII_SPEC. NAME is a string conforming to XLFD. */
-
-static INLINE Lisp_Object
-generate_ascii_font_name (name, ascii_spec)
- Lisp_Object name, ascii_spec;
-{
- Lisp_Object font_spec = Ffont_spec (0, NULL);
- int i;
- char xlfd[256];
-
- if (font_parse_xlfd ((char *) SDATA (name), font_spec) < 0)
- error ("Not an XLFD font name: %s", SDATA (name));
- for (i = FONT_FOUNDRY_INDEX; i < FONT_EXTRA_INDEX; i++)
- if (! NILP (AREF (ascii_spec, i)))
- ASET (font_spec, i, AREF (ascii_spec, i));
- i = font_unparse_xlfd (font_spec, 0, xlfd, 256);
- if (i < 0)
- error ("Not an XLFD font name: %s", SDATA (name));
- return make_unibyte_string (xlfd, i);
-}
+/* Callback function for map_charset_chars in Fset_fontset_font.
+ ARG is a vector [ FONTSET FONT_DEF ADD ASCII SCRIPT_RANGE_LIST ].
-/* Variables referred in set_fontset_font. They are set before
- map_charset_chars is called in Fset_fontset_font. */
-static Lisp_Object font_def_arg, add_arg;
-static int from_arg, to_arg;
+ In FONTSET, set FONT_DEF in a fashion specified by ADD for
+ characters in RANGE and ranges in SCRIPT_RANGE_LIST before RANGE.
+ The consumed ranges are poped up from SCRIPT_RANGE_LIST, and the
+ new SCRIPT_RANGE_LIST is stored in ARG.
-/* Callback function for map_charset_chars in Fset_fontset_font. In
- FONTSET, set font_def_arg in a fashion specified by add_arg for
- characters in RANGE while ignoring the range between from_arg and
- to_arg. */
+ If ASCII is nil, don't set FONT_DEF for ASCII characters. It is
+ assured that SCRIPT_RANGE_LIST doesn't contain ASCII in that
+ case. */
static void
-set_fontset_font (fontset, range)
- Lisp_Object fontset, range;
+set_fontset_font (Lisp_Object arg, Lisp_Object range)
{
- if (from_arg < to_arg)
- {
- int from = XINT (XCAR (range)), to = XINT (XCDR (range));
+ Lisp_Object fontset, font_def, add, ascii, script_range_list;
+ int from = XINT (XCAR (range)), to = XINT (XCDR (range));
- if (from < from_arg)
- {
- if (to > to_arg)
- {
- Lisp_Object range2;
+ fontset = AREF (arg, 0);
+ font_def = AREF (arg, 1);
+ add = AREF (arg, 2);
+ ascii = AREF (arg, 3);
+ script_range_list = AREF (arg, 4);
- range2 = Fcons (make_number (to_arg), XCDR (range));
- FONTSET_ADD (fontset, range, font_def_arg, add_arg);
- to = to_arg;
- }
- if (to > from_arg)
- range = Fcons (XCAR (range), make_number (from_arg));
- }
- else if (to <= to_arg)
+ if (NILP (ascii) && from < 0x80)
+ {
+ if (to < 0x80)
return;
- else
- {
- if (from < to_arg)
- range = Fcons (make_number (to_arg), XCDR (range));
- }
+ from = 0x80;
+ range = Fcons (make_number (0x80), XCDR (range));
+ }
+
+#define SCRIPT_FROM XINT (XCAR (XCAR (script_range_list)))
+#define SCRIPT_TO XINT (XCDR (XCAR (script_range_list)))
+#define POP_SCRIPT_RANGE() script_range_list = XCDR (script_range_list)
+
+ for (; CONSP (script_range_list) && SCRIPT_TO < from; POP_SCRIPT_RANGE ())
+ FONTSET_ADD (fontset, XCAR (script_range_list), font_def, add);
+ if (CONSP (script_range_list))
+ {
+ if (SCRIPT_FROM < from)
+ range = Fcons (make_number (SCRIPT_FROM), XCDR (range));
+ while (CONSP (script_range_list) && SCRIPT_TO <= to)
+ POP_SCRIPT_RANGE ();
+ if (CONSP (script_range_list) && SCRIPT_FROM <= to)
+ XSETCAR (XCAR (script_range_list), make_number (to + 1));
}
- FONTSET_ADD (fontset, range, font_def_arg, add_arg);
+
+ FONTSET_ADD (fontset, range, font_def, add);
+ ASET (arg, 4, script_range_list);
}
-extern Lisp_Object QCfamily, QCregistry;
+static void update_auto_fontset_alist (Lisp_Object, Lisp_Object);
+
DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0,
doc: /*
Modify fontset NAME to use FONT-SPEC for TARGET characters.
+NAME is a fontset name string, nil for the fontset of FRAME, or t for
+the default fontset.
+
TARGET may be a cons; (FROM . TO), where FROM and TO are characters.
In that case, use FONT-SPEC for all characters in the range FROM and
TO (inclusive).
* A font name string.
* nil, which explicitly specifies that there's no font for TARGET.
-Optional 4th argument FRAME, if non-nil, is a frame. This argument is
-kept for backward compatibility and has no meaning.
+Optional 4th argument FRAME is a frame or nil for the selected frame
+that is concerned in the case that NAME is nil.
Optional 5th argument ADD, if non-nil, specifies how to add FONT-SPEC
to the font specifications for TARGET previously set. If it is
`prepend', FONT-SPEC is prepended. If it is `append', FONT-SPEC is
appended. By default, FONT-SPEC overrides the previous settings. */)
- (name, target, font_spec, frame, add)
- Lisp_Object name, target, font_spec, frame, add;
+ (Lisp_Object name, Lisp_Object target, Lisp_Object font_spec, Lisp_Object frame, Lisp_Object add)
{
Lisp_Object fontset;
Lisp_Object font_def, registry, family;
Lisp_Object range_list;
struct charset *charset = NULL;
+ Lisp_Object fontname;
+ int ascii_changed = 0;
- fontset = check_fontset_name (name);
-
- /* The arg FRAME is kept for backward compatibility. We only check
- the validity. */
- if (!NILP (frame))
- CHECK_LIVE_FRAME (frame);
+ fontset = check_fontset_name (name, &frame);
+ fontname = Qnil;
if (CONSP (font_spec))
{
Lisp_Object spec = Ffont_spec (0, NULL);
font_parse_family_registry (XCAR (font_spec), XCDR (font_spec), spec);
font_spec = spec;
+ fontname = Ffont_xlfd_name (font_spec, Qnil);
}
else if (STRINGP (font_spec))
{
Lisp_Object args[2];
- extern Lisp_Object QCname;
+ fontname = font_spec;
args[0] = QCname;
args[1] = font_spec;
font_spec = Ffont_spec (2, args);
}
- else if (! NILP (font_spec) && ! FONT_SPEC_P (font_spec))
+ else if (FONT_SPEC_P (font_spec))
+ fontname = Ffont_xlfd_name (font_spec, Qnil);
+ else if (! NILP (font_spec))
Fsignal (Qfont, list2 (build_string ("Invalid font-spec"), font_spec));
if (! NILP (font_spec))
font_def = Qnil;
if (CHARACTERP (target))
- range_list = Fcons (Fcons (target, target), Qnil);
+ {
+ if (XFASTINT (target) < 0x80)
+ error ("Can't set a font for partial ASCII range");
+ range_list = Fcons (Fcons (target, target), Qnil);
+ }
else if (CONSP (target))
{
Lisp_Object from, to;
to = Fcdr (target);
CHECK_CHARACTER (from);
CHECK_CHARACTER (to);
+ if (XFASTINT (from) < 0x80)
+ {
+ if (XFASTINT (from) != 0 || XFASTINT (to) < 0x7F)
+ error ("Can't set a font for partial ASCII range");
+ ascii_changed = 1;
+ }
range_list = Fcons (target, Qnil);
}
else if (SYMBOLP (target) && !NILP (target))
script_list = XCHAR_TABLE (Vchar_script_table)->extras[0];
if (! NILP (Fmemq (target, script_list)))
{
+ if (EQ (target, Qlatin))
+ ascii_changed = 1;
val = Fcons (target, Qnil);
map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table,
val);
- range_list = XCDR (val);
- if (EQ (target, Qlatin) && NILP (FONTSET_ASCII (fontset)))
- {
- if (VECTORP (font_spec))
- val = generate_ascii_font_name (FONTSET_NAME (fontset),
- font_spec);
- else
- val = font_spec;
- FONTSET_ASCII (fontset) = val;
- }
+ range_list = Fnreverse (XCDR (val));
}
if (CHARSETP (target))
{
- if (EQ (target, Qascii) && NILP (FONTSET_ASCII (fontset)))
- {
- if (VECTORP (font_spec))
- font_spec = generate_ascii_font_name (FONTSET_NAME (fontset),
- font_spec);
- FONTSET_ASCII (fontset) = font_spec;
- range_list = Fcons (Fcons (make_number (0), make_number (127)),
- Qnil);
- }
- else
- {
- CHECK_CHARSET_GET_CHARSET (target, charset);
- }
+ CHECK_CHARSET_GET_CHARSET (target, charset);
+ if (charset->ascii_compatible_p)
+ ascii_changed = 1;
}
else if (NILP (range_list))
error ("Invalid script or charset name: %s",
else
error ("Invalid target for setting a font");
+ if (ascii_changed)
+ {
+ Lisp_Object val;
+
+ if (NILP (font_spec))
+ error ("Can't set ASCII font to nil");
+ val = CHAR_TABLE_REF (fontset, 0);
+ if (! NILP (val) && EQ (add, Qappend))
+ /* We are going to change just an additional font for ASCII. */
+ ascii_changed = 0;
+ }
if (charset)
{
- font_def_arg = font_def;
- add_arg = add;
- if (NILP (range_list))
- from_arg = to_arg = 0;
- else
- from_arg = XINT (XCAR (XCAR (range_list))),
- to_arg = XINT (XCDR (XCAR (range_list)));
+ Lisp_Object arg;
+
+ arg = Fmake_vector (make_number (5), Qnil);
+ ASET (arg, 0, fontset);
+ ASET (arg, 1, font_def);
+ ASET (arg, 2, add);
+ ASET (arg, 3, ascii_changed ? Qt : Qnil);
+ ASET (arg, 4, range_list);
- map_charset_chars (set_fontset_font, Qnil, fontset, charset,
+ map_charset_chars (set_fontset_font, Qnil, arg, charset,
CHARSET_MIN_CODE (charset),
CHARSET_MAX_CODE (charset));
+ range_list = AREF (arg, 4);
}
for (; CONSP (range_list); range_list = XCDR (range_list))
FONTSET_ADD (fontset, XCAR (range_list), font_def, add);
+ if (ascii_changed)
+ {
+ Lisp_Object tail, frame, alist;
+ int fontset_id = XINT (FONTSET_ID (fontset));
+
+ FONTSET_ASCII (fontset) = fontname;
+ name = FONTSET_NAME (fontset);
+ FOR_EACH_FRAME (tail, frame)
+ {
+ FRAME_PTR f = XFRAME (frame);
+ Lisp_Object font_object;
+ struct face *face;
+
+ if (FRAME_INITIAL_P (f) || FRAME_TERMCAP_P (f))
+ continue;
+ if (fontset_id != FRAME_FONTSET (f))
+ continue;
+ face = FACE_FROM_ID (f, DEFAULT_FACE_ID);
+ if (face)
+ font_object = font_load_for_lface (f, face->lface, font_spec);
+ else
+ font_object = font_open_by_spec (f, font_spec);
+ if (! NILP (font_object))
+ {
+ update_auto_fontset_alist (font_object, fontset);
+ alist = Fcons (Fcons (Qfont, Fcons (name, font_object)), Qnil);
+ Fmodify_frame_parameters (frame, alist);
+ }
+ }
+ }
+
/* Free all realized fontsets whose base is FONTSET. This way, the
specified character(s) are surely redisplayed by a correct
font. */
FONT-SPEC is a vector, a cons, or a string. See the documentation of
`set-fontset-font' for the meaning. */)
- (name, fontlist)
- Lisp_Object name, fontlist;
+ (Lisp_Object name, Lisp_Object fontlist)
{
Lisp_Object fontset;
int id;
}
else
{
- fontset = FONTSET_FROM_ID (id);;
+ fontset = FONTSET_FROM_ID (id);
free_realized_fontsets (fontset);
Fset_char_table_range (fontset, Qt, Qnil);
}
(FONT-SPEC . FONTSET-ID). */
static Lisp_Object auto_fontset_alist;
+/* Number of automatically created fontsets. */
+static int num_auto_fontsets;
+
+/* Retun a fontset synthesized from FONT-OBJECT. This is called from
+ x_new_font when FONT-OBJECT is used for the default ASCII font of a
+ frame, and the returned fontset is used for the default fontset of
+ that frame. The fontset specifies a font of the same registry as
+ FONT-OBJECT for all characters in the repertory of the registry
+ (see Vfont_encoding_alist). If the repertory is not known, the
+ fontset specifies the font for all Latin characters assuming that a
+ user intends to use FONT-OBJECT for Latin characters. */
+
int
-fontset_from_font (font_object)
- Lisp_Object font_object;
+fontset_from_font (Lisp_Object font_object)
{
Lisp_Object font_name = font_get_name (font_object);
Lisp_Object font_spec = Fcopy_font_spec (font_object);
+ Lisp_Object registry = AREF (font_spec, FONT_REGISTRY_INDEX);
Lisp_Object fontset_spec, alias, name, fontset;
Lisp_Object val;
- int i;
val = assoc_no_quit (font_spec, auto_fontset_alist);
if (CONSP (val))
return XINT (FONTSET_ID (XCDR (val)));
- if (NILP (auto_fontset_alist))
+ if (num_auto_fontsets++ == 0)
alias = intern ("fontset-startup");
else
{
char temp[32];
- int len = XINT (Flength (auto_fontset_alist));
- sprintf (temp, "fontset-auto%d", len);
+ sprintf (temp, "fontset-auto%d", num_auto_fontsets - 1);
alias = intern (temp);
}
fontset_spec = Fcopy_font_spec (font_spec);
alias = Fdowncase (AREF (font_object, FONT_NAME_INDEX));
Vfontset_alias_alist = Fcons (Fcons (name, alias), Vfontset_alias_alist);
auto_fontset_alist = Fcons (Fcons (font_spec, fontset), auto_fontset_alist);
+ font_spec = Ffont_spec (0, NULL);
+ ASET (font_spec, FONT_REGISTRY_INDEX, registry);
+ {
+ Lisp_Object target = find_font_encoding (SYMBOL_NAME (registry));
+
+ if (CONSP (target))
+ target = XCDR (target);
+ if (! CHARSETP (target))
+ target = Qlatin;
+ Fset_fontset_font (name, target, font_spec, Qnil, Qnil);
+ Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil);
+ }
+
FONTSET_ASCII (fontset) = font_name;
- ASET (font_spec, FONT_FOUNDRY_INDEX, Qnil);
- ASET (font_spec, FONT_ADSTYLE_INDEX, Qnil);
- for (i = FONT_WEIGHT_INDEX; i < FONT_EXTRA_INDEX; i++)
- ASET (font_spec, i, Qnil);
- Fset_fontset_font (name, Qlatin, font_spec, Qnil, Qnil);
- font_spec = Fcopy_font_spec (font_spec);
- ASET (font_spec, FONT_REGISTRY_INDEX, Qiso10646_1);
- Fset_fontset_font (name, Qnil, font_spec, Qnil, Qnil);
+
return XINT (FONTSET_ID (fontset));
}
-/* Return a cons (FONT-NAME . GLYPH-CODE).
- FONT-NAME is the font name for the character at POSITION in the current
+
+/* Update auto_fontset_alist for FONTSET. When an ASCII font of
+ FONTSET is changed, we delete an entry of FONTSET if any from
+ auto_fontset_alist so that FONTSET is not re-used by
+ fontset_from_font. */
+
+static void
+update_auto_fontset_alist (Lisp_Object font_object, Lisp_Object fontset)
+{
+ Lisp_Object prev, tail;
+
+ for (prev = Qnil, tail = auto_fontset_alist; CONSP (tail);
+ prev = tail, tail = XCDR (tail))
+ if (EQ (fontset, XCDR (XCAR (tail))))
+ {
+ if (NILP (prev))
+ auto_fontset_alist = XCDR (tail);
+ else
+ XSETCDR (prev, XCDR (tail));
+ break;
+ }
+}
+
+
+/* Return a cons (FONT-OBJECT . GLYPH-CODE).
+ FONT-OBJECT is the font for the character at POSITION in the current
buffer. This is computed from all the text properties and overlays
that apply to POSITION. POSTION may be nil, in which case,
- FONT-NAME is the font name for display the character CH with the
+ FONT-SPEC is the font for displaying the character CH with the
default face.
GLYPH-CODE is the glyph code in the font to use for the character.
DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0,
doc: /* For internal use only. */)
- (position, ch)
- Lisp_Object position, ch;
+ (Lisp_Object position, Lisp_Object ch)
{
EMACS_INT pos, pos_byte, dummy;
int face_id;
return Qnil;
w = XWINDOW (window);
f = XFRAME (w->frame);
- face_id = face_at_buffer_position (w, pos, -1, -1, &dummy, pos + 100, 0);
+ face_id = face_at_buffer_position (w, pos, -1, -1, &dummy,
+ pos + 100, 0, -1);
charset = Fget_char_property (position, Qcharset, Qnil);
if (CHARSETP (charset))
cs_id = XINT (CHARSET_SYMBOL_ID (charset));
face = FACE_FROM_ID (f, face_id);
if (face->font)
{
- struct font *font = face->font;
- unsigned code = font->driver->encode_char (font, c);
- Lisp_Object fontname = font->props[FONT_NAME_INDEX];
+ unsigned code = face->font->driver->encode_char (face->font, c);
+ Lisp_Object font_object;
/* Assignment to EMACS_INT stops GCC whining about limited range
of data type. */
EMACS_INT cod = code;
if (code == FONT_INVALID_CODE)
return Qnil;
+ XSETFONT (font_object, face->font);
if (cod <= MOST_POSITIVE_FIXNUM)
- return Fcons (fontname, make_number (code));
- return Fcons (fontname, Fcons (make_number (code >> 16),
+ return Fcons (font_object, make_number (code));
+ return Fcons (font_object, Fcons (make_number (code >> 16),
make_number (code & 0xFFFF)));
}
return Qnil;
DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0,
doc: /* Return information about a fontset FONTSET on frame FRAME.
-The value is a char-table whose elements have this form:
- ((FONT-PATTERN OPENED-FONT ...) ...)
+FONTSET is a fontset name string, nil for the fontset of FRAME, or t
+for the default fontset. FRAME nil means the selected frame.
-FONT-PATTERN is a vector:
+The value is a char-table whose elements have this form:
- [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ]
+ ((FONT OPENED-FONT ...) ...)
-or a string of font name pattern.
+FONT is a name of font specified for a range of characters.
OPENED-FONT is a name of a font actually opened.
-The char-table has one extra slot. The value is a char-table
-containing the information about the derived fonts from the default
-fontset. The format is the same as above. */)
- (fontset, frame)
- Lisp_Object fontset, frame;
+The char-table has one extra slot. If FONTSET is not the default
+fontset, the value the extra slot is a char-table containing the
+information about the derived fonts from the default fontset. The
+format is the same as above. */)
+ (Lisp_Object fontset, Lisp_Object frame)
{
FRAME_PTR f;
Lisp_Object *realized[2], fontsets[2], tables[2];
(*check_window_system_func) ();
- fontset = check_fontset_name (fontset);
-
- if (NILP (frame))
- frame = selected_frame;
- CHECK_LIVE_FRAME (frame);
+ fontset = check_fontset_name (fontset, &frame);
f = XFRAME (frame);
/* Recode fontsets realized on FRAME from the base fontset FONTSET
realized[1][j] = Qnil;
tables[0] = Fmake_char_table (Qfontset_info, Qnil);
- tables[1] = Fmake_char_table (Qnil, Qnil);
- XCHAR_TABLE (tables[0])->extras[0] = tables[1];
fontsets[0] = fontset;
- fontsets[1] = Vdefault_fontset;
+ if (!EQ (fontset, Vdefault_fontset))
+ {
+ tables[1] = Fmake_char_table (Qnil, Qnil);
+ XCHAR_TABLE (tables[0])->extras[0] = tables[1];
+ fontsets[1] = Vdefault_fontset;
+ }
/* Accumulate information of the fontset in TABLE. The format of
each element is ((FONT-SPEC OPENED-FONT ...) ...). */
{
for (c = 0; c <= MAX_CHAR; )
{
- int from, to;
+ int from = c, to = MAX_5_BYTE_CHAR;
if (c <= MAX_5_BYTE_CHAR)
{
val = char_table_ref_and_range (fontsets[k], c, &from, &to);
- if (to > MAX_5_BYTE_CHAR)
- to = MAX_5_BYTE_CHAR;
}
else
{
alist);
alist = Fnreverse (alist);
- /* Then store opend font names to cdr of each elements. */
+ /* Then store opened font names to cdr of each elements. */
for (i = 0; ! NILP (realized[k][i]); i++)
{
if (c <= MAX_5_BYTE_CHAR)
val = FONTSET_REF (realized[k][i], c);
else
val = FONTSET_FALLBACK (realized[k][i]);
- if (! VECTORP (val))
+ if (! CONSP (val) || ! VECTORP (XCDR (val)))
continue;
- /* VAL: [int ? [FACE-ID FONT-DEF FONT-OBJECT int] ... ] */
- for (j = 2; j < ASIZE (val); j++)
+ /* VAL: (int . [[FACE-ID FONT-DEF FONT-OBJECT int] ... ]) */
+ val = XCDR (val);
+ for (j = 0; j < ASIZE (val); j++)
{
elt = AREF (val, j);
if (FONT_OBJECT_P (RFONT_DEF_OBJECT (elt)))
}
c = to + 1;
}
+ if (EQ (fontset, Vdefault_fontset))
+ break;
}
return tables[0];
DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 3, 0,
doc: /* Return a font name pattern for character CH in fontset NAME.
If NAME is t, find a pattern in the default fontset.
+If NAME is nil, find a pattern in the fontset of the selected frame.
The value has the form (FAMILY . REGISTRY), where FAMILY is a font
family name and REGISTRY is a font registry name. This is actually
If the 2nd optional arg ALL is non-nil, return a list of all font name
patterns. */)
- (name, ch, all)
- Lisp_Object name, ch, all;
+ (Lisp_Object name, Lisp_Object ch, Lisp_Object all)
{
int c;
Lisp_Object fontset, elt, list, repertory, val;
int i, j;
+ Lisp_Object frame;
- fontset = check_fontset_name (name);
+ frame = Qnil;
+ fontset = check_fontset_name (name, &frame);
CHECK_CHARACTER (ch);
c = XINT (ch);
if (VECTORP (elt))
for (j = 0; j < ASIZE (elt); j++)
{
+ Lisp_Object family, registry;
+
val = AREF (elt, j);
+ if (NILP (val))
+ return Qnil;
repertory = AREF (val, 1);
if (INTEGERP (repertory))
{
continue;
}
val = AREF (val, 0);
- val = Fcons (AREF (val, 0), AREF (val, 5));
+ /* VAL is a FONT-SPEC */
+ family = AREF (val, FONT_FAMILY_INDEX);
+ if (! NILP (family))
+ family = SYMBOL_NAME (family);
+ registry = AREF (val, FONT_REGISTRY_INDEX);
+ if (! NILP (registry))
+ registry = SYMBOL_NAME (registry);
+ val = Fcons (family, registry);
if (NILP (all))
return val;
list = Fcons (val, list);
DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0,
doc: /* Return a list of all defined fontset names. */)
- ()
+ (void)
{
Lisp_Object fontset, list;
int i;
DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0,
doc: /* Return a brief summary of all fontsets for debug use. */)
- ()
+ (void)
{
Lisp_Object val;
int i;
#endif /* FONTSET_DEBUG */
void
-syms_of_fontset ()
+syms_of_fontset (void)
{
DEFSYM (Qfontset, "fontset");
Fput (Qfontset, Qchar_table_extra_slots, make_number (9));
staticpro (&Vdefault_fontset);
FONTSET_ID (Vdefault_fontset) = make_number (0);
FONTSET_NAME (Vdefault_fontset)
- = build_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default");
+ = make_pure_c_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default");
ASET (Vfontset_table, 0, Vdefault_fontset);
next_fontset_id = 1;
DEFVAR_LISP ("fontset-alias-alist", &Vfontset_alias_alist,
doc: /* Alist of fontset names vs the aliases. */);
Vfontset_alias_alist = Fcons (Fcons (FONTSET_NAME (Vdefault_fontset),
- build_string ("fontset-default")),
+ make_pure_c_string ("fontset-default")),
Qnil);
DEFVAR_LISP ("vertical-centering-font-regexp",
HCoop / bpt / emacs.git / blobdiff