diff options
Diffstat (limited to 'src/fontset.c')
| -rw-r--r-- | src/fontset.c | 2179 |
1 files changed, 1343 insertions, 836 deletions
diff --git a/src/fontset.c b/src/fontset.c index f3bdc4c235e..27412558aad 100644 --- a/src/fontset.c +++ b/src/fontset.c @@ -1,7 +1,10 @@ /* Fontset handler. Copyright (C) 2004 Free Software Foundation, Inc. Copyright (C) 1995, 1997, 2000 Electrotechnical Laboratory, JAPAN. - Licensed to the Free Software Foundation. + Licensed to the Free Software Foundation. + Copyright (C) 2003 + National Institute of Advanced Industrial Science and Technology (AIST) + Registration Number H13PRO009 This file is part of GNU Emacs. @@ -29,12 +32,15 @@ Boston, MA 02111-1307, USA. */ #endif #include "lisp.h" +#include "blockinput.h" #include "buffer.h" +#include "character.h" #include "charset.h" #include "ccl.h" #include "keyboard.h" #include "frame.h" #include "dispextern.h" +#include "intervals.h" #include "fontset.h" #include "window.h" #ifdef HAVE_X_WINDOWS @@ -47,71 +53,131 @@ Boston, MA 02111-1307, USA. */ #include "macterm.h" #endif -#ifdef FONTSET_DEBUG #undef xassert +#ifdef FONTSET_DEBUG #define xassert(X) do {if (!(X)) abort ();} while (0) #undef INLINE #define INLINE -#endif +#else /* not FONTSET_DEBUG */ +#define xassert(X) (void) 0 +#endif /* not FONTSET_DEBUG */ +EXFUN (Fclear_face_cache, 1); /* FONTSET A fontset is a collection of font related information to give - similar appearance (style, size, etc) of characters. There are two - kinds of fontsets; base and realized. A base fontset is created by - new-fontset from Emacs Lisp explicitly. A realized fontset is - created implicitly when a face is realized for ASCII characters. A - face is also realized for multibyte characters based on an ASCII - face. All of the multibyte faces based on the same ASCII face - share the same realized fontset. + similar appearance (style, etc) of characters. A fontset has two + roles. One is to use for the frame parameter `font' as if it is an + ASCII font. In that case, Emacs uses the font specified for + `ascii' script for the frame's default font. + + Another role, the more important one, is to provide information + about which font to use for each non-ASCII character. + + There are two kinds of fontsets; base and realized. A base fontset + is created by `new-fontset' from Emacs Lisp explicitly. A realized + fontset is created implicitly when a face is realized for ASCII + characters. A face is also realized for non-ASCII characters based + on an ASCII face. All of non-ASCII faces based on the same ASCII + face share the same realized fontset. + + A fontset object is implemented by a char-table whose default value + and parent are always nil. + + An element of a base fontset is a vector of FONT-DEFs which itself + is a vector [ FONT-SPEC ENCODING REPERTORY ]. + + FONT-SPEC is: + [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] + or + FONT-NAME + where FAMILY, WEIGHT, SLANT, SWIDTH, ADSTYLE, REGISTRY, and + FONT-NAME are strings. + + Note: Currently WEIGHT through ADSTYLE are ignored. + + ENCODING is a charset ID that can convert characters to glyph codes + of the corresponding font. + + REPERTORY is a charset ID, a char-table, or nil. If REPERTORY is a + charset ID, the repertory of the charset exactly matches with that + of the font. If REPERTORY is a char-table, all characters who have + a non-nil value in the table are supported. If REPERTORY is nil, + we consult with the font itself to get the repertory. + + ENCODING and REPERTORY are extracted from the variable + Vfont_encoding_alist by using a font name generated from FONT-SPEC + (if it is a vector) or FONT-NAME as a matching target. + + + An element of a realized fontset is nil or t, or has this form: + + [CHARSET-ORDERED-LIST-TICK PREFERRED-CHARSET-ID + PREFERRED-RFONT-DEF RFONT-DEF0 RFONT-DEF1 ...]. + + RFONT-DEFn (i.e. Realized FONT-DEF) has this form: + + [ FACE-ID FONT-INDEX FONT-DEF OPENED-FONT-NAME ] - A fontset object is implemented by a char-table. + RFONT-DEFn is automatically reordered by the current charset + priority list. - An element of a base fontset is: - (INDEX . FONTNAME) or - (INDEX . (FOUNDRY . REGISTRY )) - FONTNAME is a font name pattern for the corresponding character. - FOUNDRY and REGISTRY are respectively foundry and registry fields of - a font name for the corresponding character. INDEX specifies for - which character (or generic character) the element is defined. It - may be different from an index to access this element. For - instance, if a fontset defines some font for all characters of - charset `japanese-jisx0208', INDEX is the generic character of this - charset. REGISTRY is the + The value nil means that we have not yet generated the above vector + from the base of the fontset. - An element of a realized fontset is FACE-ID which is a face to use - for displaying the corresponding character. + The value t means that no font is available for the corresponding + range of characters. - All single byte characters (ASCII and 8bit-unibyte) share the same - element in a fontset. The element is stored in the first element - of the fontset. - To access or set each element, use macros FONTSET_REF and - FONTSET_SET respectively for efficiency. + A fontset has 9 extra slots. - A fontset has 3 extra slots. + The 1st slot: the ID number of the fontset - The 1st slot is an ID number of the fontset. + The 2nd slot: + base: the name of the fontset + realized: nil - The 2nd slot is a name of the fontset. This is nil for a realized - face. + The 3rd slot: + base: nil + realized: the base fontset - The 3rd slot is a frame that the fontset belongs to. This is nil - for a default face. + The 4th slot: + base: nil + realized: the frame that the fontset belongs to - A parent of a base fontset is nil. A parent of a realized fontset - is a base fontset. + The 5th slot: + base: the font name for ASCII characters + realized: nil - All fontsets are recorded in Vfontset_table. + The 6th slot: + base: nil + realized: the ID number of a face to use for characters that + has no font in a realized fontset. + + The 7th slot: + base: nil + realized: Alist of font index vs the corresponding repertory + char-table. + + The 8th slot: + base: nil + realized: If the base is not the default fontset, a fontset + realized from the default fontset, else nil. + + The 9th slot: + base: Same as element value (but for fallback fonts). + realized: Likewise. + + All fontsets are recorded in the vector Vfontset_table. DEFAULT FONTSET - There's a special fontset named `default fontset' which defines a - default fontname pattern. When a base fontset doesn't specify a - font for a specific character, the corresponding value in the - default fontset is used. The format is the same as a base fontset. + There's a special base fontset named `default fontset' which + defines the default font specifications. When a base fontset + doesn't specify a font for a specific character, the corresponding + value in the default fontset is used. The parent of a realized fontset created for such a face that has no fontset is the default fontset. @@ -119,16 +185,18 @@ Boston, MA 02111-1307, USA. */ These structures are hidden from the other codes than this file. The other codes handle fontsets only by their ID numbers. They - usually use variable name `fontset' for IDs. But, in this file, we - always use variable name `id' for IDs, and name `fontset' for the - actual fontset objects. + usually use the variable name `fontset' for IDs. But, in this + file, we always use varialbe name `id' for IDs, and name `fontset' + for an actual fontset object, i.e., char-table. */ /********** VARIABLES and FUNCTION PROTOTYPES **********/ extern Lisp_Object Qfont; -Lisp_Object Qfontset; +static Lisp_Object Qfontset; +static Lisp_Object Qfontset_info; +static Lisp_Object Qprepend, Qappend; /* Vector containing all fontsets. */ static Lisp_Object Vfontset_table; @@ -138,13 +206,9 @@ static Lisp_Object Vfontset_table; static int next_fontset_id; /* The default fontset. This gives default FAMILY and REGISTRY of - font for each characters. */ + font for each character. */ static Lisp_Object Vdefault_fontset; -/* Alist of font specifications. It override the font specification - in the default fontset. */ -static Lisp_Object Voverriding_fontspec_alist; - Lisp_Object Vfont_encoding_alist; Lisp_Object Vuse_default_ascent; Lisp_Object Vignore_relative_composition; @@ -183,19 +247,38 @@ void (*set_frame_fontset_func) P_ ((FRAME_PTR f, Lisp_Object arg, This function set the member `encoder' of the structure. */ void (*find_ccl_program_func) P_ ((struct font_info *)); +Lisp_Object (*get_font_repertory_func) P_ ((struct frame *, + struct font_info *)); + /* Check if any window system is used now. */ void (*check_window_system_func) P_ ((void)); /* Prototype declarations for static functions. */ -static Lisp_Object fontset_ref P_ ((Lisp_Object, int)); -static Lisp_Object lookup_overriding_fontspec P_ ((Lisp_Object, int)); -static void fontset_set P_ ((Lisp_Object, int, Lisp_Object)); +static Lisp_Object fontset_add P_ ((Lisp_Object, Lisp_Object, 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 int fontset_id_valid_p P_ ((int)); static Lisp_Object fontset_pattern_regexp P_ ((Lisp_Object)); -static Lisp_Object font_family_registry P_ ((Lisp_Object, int)); -static Lisp_Object regularize_fontname P_ ((Lisp_Object)); +static void accumulate_script_ranges P_ ((Lisp_Object, Lisp_Object, + Lisp_Object)); +static Lisp_Object find_font_encoding P_ ((Lisp_Object)); + +static void set_fontset_font P_ ((Lisp_Object, Lisp_Object)); + +#ifdef FONTSET_DEBUG + +/* Return 1 if ID is a valid fontset id, else return 0. */ + +static int +fontset_id_valid_p (id) + int id; +{ + return (id >= 0 && id < ASIZE (Vfontset_table) - 1); +} + +#endif + /********** MACROS AND FUNCTIONS TO HANDLE FONTSET **********/ @@ -205,166 +288,443 @@ static Lisp_Object regularize_fontname P_ ((Lisp_Object)); /* Macros to access special values of FONTSET. */ #define FONTSET_ID(fontset) XCHAR_TABLE (fontset)->extras[0] + +/* Macros to access special values of (base) FONTSET. */ #define FONTSET_NAME(fontset) XCHAR_TABLE (fontset)->extras[1] -#define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[2] -#define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->contents[0] -#define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->parent +#define FONTSET_ASCII(fontset) XCHAR_TABLE (fontset)->extras[4] -#define BASE_FONTSET_P(fontset) NILP (FONTSET_BASE(fontset)) +/* Macros to access special values of (realized) FONTSET. */ +#define FONTSET_BASE(fontset) XCHAR_TABLE (fontset)->extras[2] +#define FONTSET_FRAME(fontset) XCHAR_TABLE (fontset)->extras[3] +#define FONTSET_NOFONT_FACE(fontset) XCHAR_TABLE (fontset)->extras[5] +#define FONTSET_REPERTORY(fontset) XCHAR_TABLE (fontset)->extras[6] +#define FONTSET_DEFAULT(fontset) XCHAR_TABLE (fontset)->extras[7] +/* For both base and realized fontset. */ +#define FONTSET_FALLBACK(fontset) XCHAR_TABLE (fontset)->extras[8] -/* Return the element of FONTSET (char-table) at index C (character). */ +#define BASE_FONTSET_P(fontset) (NILP (FONTSET_BASE (fontset))) -#define FONTSET_REF(fontset, c) fontset_ref (fontset, c) + +/* Return the element of FONTSET for the character C. If FONTSET is a + base fontset other then the default fontset and FONTSET doesn't + contain information for C, return the information in the default + fontset. */ + +#define FONTSET_REF(fontset, c) \ + (EQ (fontset, Vdefault_fontset) \ + ? CHAR_TABLE_REF (fontset, c) \ + : fontset_ref ((fontset), (c))) static Lisp_Object fontset_ref (fontset, c) Lisp_Object fontset; int c; { - int charset, c1, c2; - Lisp_Object elt, defalt; - - if (SINGLE_BYTE_CHAR_P (c)) - return FONTSET_ASCII (fontset); - - SPLIT_CHAR (c, charset, c1, c2); - elt = XCHAR_TABLE (fontset)->contents[charset + 128]; - if (!SUB_CHAR_TABLE_P (elt)) - return elt; - defalt = XCHAR_TABLE (elt)->defalt; - if (c1 < 32 - || (elt = XCHAR_TABLE (elt)->contents[c1], - NILP (elt))) - return defalt; - if (!SUB_CHAR_TABLE_P (elt)) - return elt; - defalt = XCHAR_TABLE (elt)->defalt; - if (c2 < 32 - || (elt = XCHAR_TABLE (elt)->contents[c2], - NILP (elt))) - return defalt; + Lisp_Object elt; + + elt = CHAR_TABLE_REF (fontset, c); + if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) + /* Don't check Vdefault_fontset for a realized fontset. */ + && NILP (FONTSET_BASE (fontset))) + elt = CHAR_TABLE_REF (Vdefault_fontset, c); return elt; } +/* Return the element of FONTSET for the character C, set FROM and TO + to the range of characters around C that have the same value as C. + If FONTSET is a base fontset other then the default fontset and + FONTSET doesn't contain information for C, return the information + in the default fontset. */ + +#define FONTSET_REF_AND_RANGE(fontset, c, form, to) \ + (EQ (fontset, Vdefault_fontset) \ + ? char_table_ref_and_range (fontset, c, &from, &to) \ + : fontset_ref_and_range (fontset, c, &from, &to)) + static Lisp_Object -lookup_overriding_fontspec (frame, c) - Lisp_Object frame; +fontset_ref_and_range (fontset, c, from, to) + Lisp_Object fontset; int c; + int *from, *to; { - Lisp_Object tail; + Lisp_Object elt; - for (tail = Voverriding_fontspec_alist; CONSP (tail); tail = XCDR (tail)) + elt = char_table_ref_and_range (fontset, c, from, to); + if (NILP (elt) && ! EQ (fontset, Vdefault_fontset) + /* Don't check Vdefault_fontset for a realized fontset. */ + && NILP (FONTSET_BASE (fontset))) { - Lisp_Object val, target, elt; - - val = XCAR (tail); - target = XCAR (val); - val = XCDR (val); - /* Now VAL is (NO-FRAME-LIST OK-FRAME-LIST CHAR FONTNAME). */ - if (NILP (Fmemq (frame, XCAR (val))) - && (CHAR_TABLE_P (target) - ? ! NILP (CHAR_TABLE_REF (target, c)) - : XINT (target) == CHAR_CHARSET (c))) - { - val = XCDR (val); - elt = XCDR (val); - if (NILP (Fmemq (frame, XCAR (val)))) - { - if (! face_font_available_p (XFRAME (frame), XCDR (elt))) - { - val = XCDR (XCAR (tail)); - XSETCAR (val, Fcons (frame, XCAR (val))); - continue; - } - XSETCAR (val, Fcons (frame, XCAR (val))); - } - if (NILP (XCAR (elt))) - XSETCAR (elt, make_number (c)); - return elt; - } + int from1, to1; + + elt = char_table_ref_and_range (Vdefault_fontset, c, &from1, &to1); + if (*from < from1) + *from = from1; + if (*to > to1) + *to = to1; } - return Qnil; + return elt; } -#define FONTSET_REF_VIA_BASE(fontset, c) fontset_ref_via_base (fontset, &c) + +/* Set elements of FONTSET for characters in RANGE to the value ELT. + RANGE is a cons (FROM . TO), where FROM and TO are character codes + specifying a range. */ + +#define FONTSET_SET(fontset, range, elt) \ + Fset_char_table_range ((fontset), (range), (elt)) + + +/* Modify the elements of FONTSET for characters in RANGE by replacing + with ELT or adding ELT. RANGE is a cons (FROM . TO), where FROM + and TO are character codes specifying a range. If ADD is nil, + replace with ELT, if ADD is `prepend', prepend ELT, otherwise, + append ELT. */ + +#define FONTSET_ADD(fontset, range, elt, add) \ + (NILP (add) \ + ? (NILP (range) \ + ? (FONTSET_FALLBACK (fontset) = Fmake_vector (make_number (1), (elt))) \ + : Fset_char_table_range ((fontset), (range), \ + Fmake_vector (make_number (1), (elt)))) \ + : fontset_add ((fontset), (range), (elt), (add))) static Lisp_Object -fontset_ref_via_base (fontset, c) - Lisp_Object fontset; - int *c; +fontset_add (fontset, range, elt, add) + Lisp_Object fontset, range, elt, add; { - int charset, c1, c2; - Lisp_Object elt; + Lisp_Object args[2]; + int idx = (EQ (add, Qappend) ? 0 : 1); - if (SINGLE_BYTE_CHAR_P (*c)) - return FONTSET_ASCII (fontset); - - elt = Qnil; - if (! EQ (FONTSET_BASE (fontset), Vdefault_fontset)) - elt = FONTSET_REF (FONTSET_BASE (fontset), *c); - if (NILP (elt)) - elt = lookup_overriding_fontspec (FONTSET_FRAME (fontset), *c); - if (NILP (elt)) - elt = FONTSET_REF (Vdefault_fontset, *c); - if (NILP (elt)) - return Qnil; + args[1 - idx] = Fmake_vector (make_number (1), elt); - *c = XINT (XCAR (elt)); - SPLIT_CHAR (*c, charset, c1, c2); - elt = XCHAR_TABLE (fontset)->contents[charset + 128]; - if (c1 < 32) - return (SUB_CHAR_TABLE_P (elt) ? XCHAR_TABLE (elt)->defalt : elt); - if (!SUB_CHAR_TABLE_P (elt)) - return Qnil; - elt = XCHAR_TABLE (elt)->contents[c1]; - if (c2 < 32) - return (SUB_CHAR_TABLE_P (elt) ? XCHAR_TABLE (elt)->defalt : elt); - if (!SUB_CHAR_TABLE_P (elt)) - return Qnil; - elt = XCHAR_TABLE (elt)->contents[c2]; - return elt; + if (CONSP (range)) + { + int from = XINT (XCAR (range)); + int to = XINT (XCDR (range)); + int from1, to1; + + do { + 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)); + from = to1 + 1; + } while (from < to); + } + else + { + args[idx] = FONTSET_FALLBACK (fontset); + FONTSET_FALLBACK (fontset) + = NILP (args[idx]) ? args[1 - idx] : Fvconcat (2, args); + } + return Qnil; } -/* Store into the element of FONTSET at index C the value NEWELT. */ -#define FONTSET_SET(fontset, c, newelt) fontset_set(fontset, c, newelt) +/* Update FONTSET_ELEMENT which has this form: + [CHARSET-ORDERED-LIST-TICK PREFERRED-CHARSET-ID PREFERRED-RFONT-DEF + RFONT-DEF0 RFONT-DEF1 ...]. + Reorder RFONT-DEFs according to the current order of charset + (Vcharset_ordered_list), and update CHARSET-ORDERED-LIST-TICK to + the latest value. */ static void -fontset_set (fontset, c, newelt) +reorder_font_vector (fontset_element) + Lisp_Object fontset_element; +{ + Lisp_Object list, *new_vec; + Lisp_Object font_def; + int size; + int *charset_id_table; + int i, idx; + + ASET (fontset_element, 0, make_number (charset_ordered_list_tick)); + size = ASIZE (fontset_element) - 3; + if (size <= 1) + /* No need to reorder VEC. */ + return; + charset_id_table = (int *) alloca (sizeof (int) * size); + new_vec = (Lisp_Object *) alloca (sizeof (Lisp_Object) * size); + + /* At first, extract ENCODING (a chaset ID) from each FONT-DEF. + FONT-DEF has this form: + [FACE-ID FONT-INDEX [ FONT-SPEC ENCODING REPERTORY ]] */ + for (i = 0; i < size; i++) + { + font_def = AREF (fontset_element, i + 3); + charset_id_table[i] = XINT (AREF (AREF (font_def, 2), 1)); + } + + /* Then, store FONT-DEFs in NEW_VEC in the correct order. */ + for (idx = 0, list = Vcharset_ordered_list; + idx < size && CONSP (list); list = XCDR (list)) + { + for (i = 0; i < size; i++) + if (charset_id_table[i] == XINT (XCAR (list))) + new_vec[idx++] = AREF (fontset_element, i + 3); + } + + /* At last, update FONT-DEFs. */ + for (i = 0; i < size; i++) + ASET (fontset_element, i + 3, new_vec[i]); +} + + +/* Load a font matching the font related attributes in FACE->lface and + font pattern in FONT_DEF of FONTSET, and return an index of the + font. FONT_DEF has this form: + [ FONT-SPEC ENCODING REPERTORY ] + If REPERTORY is nil, generate a char-table representing the font + repertory by looking into the font itself. */ + +static int +load_font_get_repertory (f, face, font_def, fontset) + FRAME_PTR f; + struct face *face; + Lisp_Object font_def; + Lisp_Object fontset; +{ + char *font_name; + struct font_info *font_info; + int charset; + + font_name = choose_face_font (f, face->lface, AREF (font_def, 0), NULL); + charset = XINT (AREF (font_def, 1)); + if (! (font_info = fs_load_font (f, font_name, charset))) + return -1; + + if (NILP (AREF (font_def, 2)) + && NILP (Fassq (make_number (font_info->font_idx), + FONTSET_REPERTORY (fontset)))) + { + /* We must look into the font to get the correct repertory as a + char-table. */ + Lisp_Object repertory; + + repertory = (*get_font_repertory_func) (f, font_info); + FONTSET_REPERTORY (fontset) + = Fcons (Fcons (make_number (font_info->font_idx), repertory), + FONTSET_REPERTORY (fontset)); + } + + return font_info->font_idx; +} + + +/* Return RFONT-DEF (vector) in the realized fontset FONTSET for the + character C. If the corresponding font is not yet opened, open it + (if FACE is not NULL) or return Qnil (if FACE is NULL). + If no proper font is found for C, return Qnil. */ + +static Lisp_Object +fontset_font (fontset, c, face, id) Lisp_Object fontset; int c; - Lisp_Object newelt; + struct face *face; + int id; { - int charset, code[3]; - Lisp_Object *elt; - int i; + Lisp_Object base_fontset, elt, vec; + int i, from, to; + int font_idx; + FRAME_PTR f = XFRAME (FONTSET_FRAME (fontset)); + + base_fontset = FONTSET_BASE (fontset); + vec = CHAR_TABLE_REF (fontset, c); + if (EQ (vec, Qt)) + goto try_fallback; - if (SINGLE_BYTE_CHAR_P (c)) + if (NILP (vec)) { - FONTSET_ASCII (fontset) = newelt; - return; + /* We have not yet decided a face for C. */ + Lisp_Object range; + + if (! face) + return Qnil; + elt = FONTSET_REF_AND_RANGE (base_fontset, c, from, to); + range = Fcons (make_number (from), make_number (to)); + if (NILP (elt)) + { + /* Record that we have no font for characters of this + range. */ + vec = Qt; + FONTSET_SET (fontset, range, vec); + goto try_fallback; + } + /* Build a vector [ -1 -1 nil NEW-ELT0 NEW-ELT1 NEW-ELT2 ... ], + where the first -1 is to force reordering of NEW-ELTn, + NEW-ETLn is [nil nil AREF (elt, n) nil]. */ + vec = Fmake_vector (make_number (ASIZE (elt) + 3), make_number (-1)); + ASET (vec, 2, Qnil); + for (i = 0; i < ASIZE (elt); i++) + { + Lisp_Object tmp; + + tmp = Fmake_vector (make_number (4), Qnil); + ASET (tmp, 2, AREF (elt, i)); + ASET (vec, 3 + i, tmp); + } + /* Then store it in the fontset. */ + FONTSET_SET (fontset, range, vec); } - SPLIT_CHAR (c, charset, code[0], code[1]); - code[2] = 0; /* anchor */ - elt = &XCHAR_TABLE (fontset)->contents[charset + 128]; - for (i = 0; code[i] > 0; i++) + retry: + if (XINT (AREF (vec, 0)) != charset_ordered_list_tick) + /* The priority of charsets is changed after we selected a face + for C last time. */ + reorder_font_vector (vec); + + if (id < 0) + i = 3; + else if (id == XFASTINT (AREF (vec, 1))) + i = 2; + else { - if (!SUB_CHAR_TABLE_P (*elt)) - *elt = make_sub_char_table (*elt); - elt = &XCHAR_TABLE (*elt)->contents[code[i]]; + ASET (vec, 1, make_number (id)); + for (i = 3; i < ASIZE (vec); i++) + if (id == XFASTINT (AREF (AREF (AREF (vec, i), 2), 1))) + break; + if (i < ASIZE (vec)) + { + ASET (vec, 2, AREF (vec, i)); + i = 2; + } + else + { + ASET (vec, 2, Qnil); + i = 3; + } } - if (SUB_CHAR_TABLE_P (*elt)) - XCHAR_TABLE (*elt)->defalt = newelt; - else - *elt = newelt; + + /* Find the first available font in the vector of RFONT-DEF. */ + for (; i < ASIZE (vec); i++) + { + Lisp_Object font_def; + + elt = AREF (vec, i); + if (NILP (elt)) + continue; + /* ELT == [ FACE-ID FONT-INDEX FONT-DEF OPENED-FONT-NAME ] */ + if (INTEGERP (AREF (elt, 1)) && XINT (AREF (elt, 1)) < 0) + /* We couldn't open this font last time. */ + continue; + + if (!face && NILP (AREF (elt, 1))) + /* We have not yet opened the font. */ + return Qnil; + + font_def = AREF (elt, 2); + /* FONT_DEF == [ FONT-SPEC ENCODING REPERTORY ] */ + if (INTEGERP (AREF (font_def, 2))) + { + /* The repertory is specified by charset ID. */ + struct charset *charset + = CHARSET_FROM_ID (XINT (AREF (font_def, 2))); + + if (! CHAR_CHARSET_P (c, charset)) + /* This font can't display C. */ + continue; + } + else if (CHAR_TABLE_P (AREF (font_def, 2))) + { + /* The repertory is specified by a char table. */ + if (NILP (CHAR_TABLE_REF (AREF (font_def, 2), c))) + /* This font can't display C. */ + continue; + } + else + { + Lisp_Object slot; + + if (! INTEGERP (AREF (elt, 1))) + { + /* We have not yet opened a font matching this spec. + Open the best matching font now and register the + repertory. */ + struct font_info *font_info; + + font_idx = load_font_get_repertory (f, face, font_def, fontset); + ASET (elt, 1, make_number (font_idx)); + if (font_idx < 0) + /* This means that we couldn't find a font matching + FONT_DEF. */ + continue; + font_info = (*get_font_info_func) (f, font_idx); + ASET (elt, 3, build_string (font_info->full_name)); + } + + slot = Fassq (AREF (elt, 1), FONTSET_REPERTORY (fontset)); + xassert (CONSP (slot)); + if (NILP (CHAR_TABLE_REF (XCDR (slot), c))) + /* This font can't display C. */ + continue; + } + + /* Now we have decided to use this font spec to display C. */ + if (! INTEGERP (AREF (elt, 1))) + { + /* But not yet opened the best matching font. */ + struct font_info *font_info; + + font_idx = load_font_get_repertory (f, face, font_def, fontset); + ASET (elt, 1, make_number (font_idx)); + if (font_idx < 0) + /* Can't open it. Try the other one. */ + continue; + font_info = (*get_font_info_func) (f, font_idx); + ASET (elt, 3, build_string (font_info->full_name)); + } + + /* Now we have the opened font. */ + return elt; + } + + try_fallback: + if (! EQ (vec, FONTSET_FALLBACK (fontset))) + { + vec = FONTSET_FALLBACK (fontset); + if (VECTORP (vec)) + goto retry; + if (EQ (vec, Qt)) + goto try_default; + elt = FONTSET_FALLBACK (base_fontset); + if (! NILP (elt)) + { + vec = Fmake_vector (make_number (ASIZE (elt) + 3), make_number (-1)); + ASET (vec, 2, Qnil); + for (i = 0; i < ASIZE (elt); i++) + { + Lisp_Object tmp; + + tmp = Fmake_vector (make_number (4), Qnil); + ASET (tmp, 2, AREF (elt, i)); + ASET (vec, 3 + i, tmp); + } + FONTSET_FALLBACK (fontset) = vec; + goto retry; + } + /* Record that this fontset has no fallback fonts. */ + FONTSET_FALLBACK (fontset) = Qt; + } + + /* Try the default fontset. */ + try_default: + if (! EQ (base_fontset, Vdefault_fontset)) + { + if (NILP (FONTSET_DEFAULT (fontset))) + FONTSET_DEFAULT (fontset) + = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset); + return fontset_font (FONTSET_DEFAULT (fontset), c, face, id); + } + return Qnil; } /* Return a newly created fontset with NAME. If BASE is nil, make a - base fontset. Otherwise make a realized fontset whose parent is + base fontset. Otherwise make a realized fontset whose base is BASE. */ static Lisp_Object @@ -384,10 +744,11 @@ make_fontset (frame, name, base) if (id + 1 == size) { + /* We must grow Vfontset_table. */ Lisp_Object tem; int i; - tem = Fmake_vector (make_number (size + 8), Qnil); + tem = Fmake_vector (make_number (size + 32), Qnil); for (i = 0; i < size; i++) AREF (tem, i) = AREF (Vfontset_table, i); Vfontset_table = tem; @@ -396,98 +757,80 @@ make_fontset (frame, name, base) fontset = Fmake_char_table (Qfontset, Qnil); FONTSET_ID (fontset) = make_number (id); - FONTSET_NAME (fontset) = name; - FONTSET_FRAME (fontset) = frame; - FONTSET_BASE (fontset) = base; + if (NILP (base)) + { + FONTSET_NAME (fontset) = name; + } + else + { + FONTSET_NAME (fontset) = Qnil; + FONTSET_FRAME (fontset) = frame; + FONTSET_BASE (fontset) = base; + } - AREF (Vfontset_table, id) = fontset; + ASET (Vfontset_table, id, fontset); next_fontset_id = id + 1; return fontset; } -/* Return 1 if ID is a valid fontset id, else return 0. */ - -static INLINE int -fontset_id_valid_p (id) - int id; -{ - return (id >= 0 && id < ASIZE (Vfontset_table) - 1); -} - - -/* Extract `family' and `registry' string from FONTNAME and a cons of - them. Actually, `family' may also contain `foundry', `registry' - may also contain `encoding' of FONTNAME. But, if FONTNAME doesn't - conform to XLFD nor explicitely specifies the other fields - (i.e. not using wildcard `*'), return FONTNAME. If FORCE is - nonzero, specifications of the other fields are ignored, and return - a cons as far as FONTNAME conform to XLFD. */ - -static Lisp_Object -font_family_registry (fontname, force) - Lisp_Object fontname; - int force; -{ - Lisp_Object family, registry; - const char *p = SDATA (fontname); - const char *sep[15]; - int i = 0; - - while (*p && i < 15) - if (*p++ == '-') - { - if (!force && i >= 2 && i <= 11 && *p != '*' && p[1] != '-') - return fontname; - sep[i++] = p; - } - if (i != 14) - return fontname; - - family = make_unibyte_string (sep[0], sep[2] - 1 - sep[0]); - registry = make_unibyte_string (sep[12], p - sep[12]); - return Fcons (family, registry); -} - -/********** INTERFACES TO xfaces.c and dispextern.h **********/ +/********** INTERFACES TO xfaces.c, xfns.c, and dispextern.h **********/ -/* Return name of the fontset with ID. */ +/* Return the name of the fontset who has ID. */ Lisp_Object fontset_name (id) int id; { Lisp_Object fontset; + fontset = FONTSET_FROM_ID (id); return FONTSET_NAME (fontset); } -/* Return ASCII font name of the fontset with ID. */ +/* Return the ASCII font name of the fontset who has ID. */ Lisp_Object fontset_ascii (id) int id; { Lisp_Object fontset, elt; + fontset= FONTSET_FROM_ID (id); elt = FONTSET_ASCII (fontset); - return XCDR (elt); + /* It is assured that ELT is always a string (i.e. fontname + pattern). */ + return elt; } -/* Free fontset of FACE. Called from free_realized_face. */ +/* Free fontset of FACE defined on frame F. Called from + free_realized_face. */ void free_face_fontset (f, face) FRAME_PTR f; struct face *face; { - if (fontset_id_valid_p (face->fontset)) + Lisp_Object fontset; + + fontset = AREF (Vfontset_table, face->fontset); + xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); + xassert (f == XFRAME (FONTSET_FRAME (fontset))); + ASET (Vfontset_table, face->fontset, Qnil); + if (face->fontset < next_fontset_id) + next_fontset_id = face->fontset; + if (! NILP (FONTSET_DEFAULT (fontset))) { - AREF (Vfontset_table, face->fontset) = Qnil; - if (face->fontset < next_fontset_id) + int id = XINT (FONTSET_ID (FONTSET_DEFAULT (fontset))); + + fontset = AREF (Vfontset_table, id); + xassert (!NILP (fontset) && ! BASE_FONTSET_P (fontset)); + xassert (f == XFRAME (FONTSET_FRAME (fontset))); + ASET (Vfontset_table, id, Qnil); + if (id < next_fontset_id) next_fontset_id = face->fontset; } } @@ -495,57 +838,74 @@ free_face_fontset (f, face) /* Return 1 iff FACE is suitable for displaying character C. Otherwise return 0. Called from the macro FACE_SUITABLE_FOR_CHAR_P - when C is not a single byte character.. */ + when C is not an ASCII character. */ int face_suitable_for_char_p (face, c) struct face *face; int c; { - Lisp_Object fontset, elt; - - if (SINGLE_BYTE_CHAR_P (c)) - return (face == face->ascii_face); + Lisp_Object fontset, rfont_def; - xassert (fontset_id_valid_p (face->fontset)); fontset = FONTSET_FROM_ID (face->fontset); - xassert (!BASE_FONTSET_P (fontset)); - - elt = FONTSET_REF_VIA_BASE (fontset, c); - return (!NILP (elt) && face->id == XFASTINT (elt)); + rfont_def = fontset_font (fontset, c, NULL, -1); + return (VECTORP (rfont_def) + && INTEGERP (AREF (rfont_def, 0)) + && face->id == XINT (AREF (rfont_def, 0))); } /* Return ID of face suitable for displaying character C on frame F. - The selection of face is done based on the fontset of FACE. FACE - should already have been realized for ASCII characters. Called - from the macro FACE_FOR_CHAR when C is not a single byte character. */ + FACE must be reazlied for ASCII characters in advance. Called from + the macro FACE_FOR_CHAR. */ int -face_for_char (f, face, c) +face_for_char (f, face, c, pos, object) FRAME_PTR f; struct face *face; - int c; + int c, pos; + Lisp_Object object; { - Lisp_Object fontset, elt; + Lisp_Object fontset, charset, rfont_def; int face_id; + int id; + + if (ASCII_CHAR_P (c)) + 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; + else + { + charset = Fget_char_property (make_number (pos), Qcharset, object); + if (NILP (charset)) + id = -1; + else if (CHARSETP (charset)) + id = XINT (CHARSET_SYMBOL_ID (charset)); + } + rfont_def = fontset_font (fontset, c, face, id); + if (VECTORP (rfont_def)) + { + if (NILP (AREF (rfont_def, 0))) + { + /* We have not yet made a realized face that uses this font. */ + int font_idx = XINT (AREF (rfont_def, 1)); - elt = FONTSET_REF_VIA_BASE (fontset, c); - if (!NILP (elt)) - return XINT (elt); - - /* No face is recorded for C in the fontset of FACE. Make a new - realized face for C that has the same fontset. */ - face_id = lookup_face (f, face->lface, c, face); + face_id = lookup_non_ascii_face (f, font_idx, face); + ASET (rfont_def, 0, make_number (face_id)); + } + return XINT (AREF (rfont_def, 0)); + } - /* Record the face ID in FONTSET at the same index as the - information in the base fontset. */ - FONTSET_SET (fontset, c, make_number (face_id)); - return face_id; + if (NILP (FONTSET_NOFONT_FACE (fontset))) + { + face_id = lookup_non_ascii_face (f, -1, face); + FONTSET_NOFONT_FACE (fontset) = make_number (face_id); + } + return XINT (FONTSET_NOFONT_FACE (fontset)); } @@ -555,9 +915,10 @@ face_for_char (f, face, c) Called from realize_x_face. */ int -make_fontset_for_ascii_face (f, base_fontset_id) +make_fontset_for_ascii_face (f, base_fontset_id, face) FRAME_PTR f; int base_fontset_id; + struct face *face; { Lisp_Object base_fontset, fontset, frame; @@ -568,195 +929,87 @@ make_fontset_for_ascii_face (f, base_fontset_id) if (!BASE_FONTSET_P (base_fontset)) base_fontset = FONTSET_BASE (base_fontset); xassert (BASE_FONTSET_P (base_fontset)); + if (! BASE_FONTSET_P (base_fontset)) + abort (); } else base_fontset = Vdefault_fontset; fontset = make_fontset (frame, Qnil, base_fontset); + { + Lisp_Object elt, rfont_def; + + elt = FONTSET_REF (base_fontset, 0); + xassert (VECTORP (elt) && ASIZE (elt) > 0); + rfont_def = Fmake_vector (make_number (4), Qnil); + ASET (rfont_def, 0, make_number (face->id)); + ASET (rfont_def, 1, make_number (face->font_info_id)); + ASET (rfont_def, 2, AREF (elt, 0)); + ASET (rfont_def, 3, build_string (face->font_name)); + elt = Fmake_vector (make_number (4), Qnil); + ASET (elt, 0, make_number (charset_ordered_list_tick)); + ASET (elt, 1, make_number (charset_ascii)); + ASET (elt, 2, rfont_def); + ASET (elt, 3, rfont_def); + char_table_set_range (fontset, 0, 127, elt); + } return XINT (FONTSET_ID (fontset)); } -/* Return the font name pattern for C that is recorded in the fontset - with ID. If a font name pattern is specified (instead of a cons of - family and registry), check if a font can be opened by that pattern - to get the fullname. If a font is opened, return that name. - Otherwise, return nil. If ID is -1, or the fontset doesn't contain - information about C, get the registry and encoding of C from the - default fontset. Called from choose_face_font. */ - -Lisp_Object -fontset_font_pattern (f, id, c) - FRAME_PTR f; - int id, c; -{ - Lisp_Object fontset, elt; - struct font_info *fontp; - - elt = Qnil; - if (fontset_id_valid_p (id)) - { - fontset = FONTSET_FROM_ID (id); - xassert (!BASE_FONTSET_P (fontset)); - fontset = FONTSET_BASE (fontset); - if (! EQ (fontset, Vdefault_fontset)) - elt = FONTSET_REF (fontset, c); - } - if (NILP (elt)) - { - Lisp_Object frame; - - XSETFRAME (frame, f); - elt = lookup_overriding_fontspec (frame, c); - } - if (NILP (elt)) - elt = FONTSET_REF (Vdefault_fontset, c); - - if (!CONSP (elt)) - return Qnil; - if (CONSP (XCDR (elt))) - return XCDR (elt); - - /* The fontset specifies only a font name pattern (not cons of - family and registry). If a font can be opened by that pattern, - return the name of opened font. Otherwise return nil. The - exception is a font for single byte characters. In that case, we - return a cons of FAMILY and REGISTRY extracted from the opened - font name. */ - elt = XCDR (elt); - xassert (STRINGP (elt)); - fontp = FS_LOAD_FONT (f, c, SDATA (elt), -1); - if (!fontp) - return Qnil; - - return font_family_registry (build_string (fontp->full_name), - SINGLE_BYTE_CHAR_P (c)); -} - - #if defined(WINDOWSNT) && defined (_MSC_VER) #pragma optimize("", off) #endif -/* Load a font named FONTNAME to display character C on frame F. - Return a pointer to the struct font_info of the loaded font. If - loading fails, return NULL. If FACE is non-zero and a fontset is - assigned to it, record FACE->id in the fontset for C. If FONTNAME - is NULL, the name is taken from the fontset of FACE or what - specified by ID. */ +/* Load a font named FONTNAME on frame F. Return a pointer to the + struct font_info of the loaded font. If loading fails, return + NULL. CHARSET is an ID of charset to encode characters for this + font. If it is -1, find one from Vfont_encoding_alist. */ struct font_info * -fs_load_font (f, c, fontname, id, face) +fs_load_font (f, fontname, charset) FRAME_PTR f; - int c; char *fontname; - int id; - struct face *face; + int charset; { - Lisp_Object fontset; - Lisp_Object list, elt, fullname; - int size = 0; struct font_info *fontp; - int charset = CHAR_CHARSET (c); - - if (face) - id = face->fontset; - if (id < 0) - fontset = Qnil; - else - fontset = FONTSET_FROM_ID (id); - - if (!NILP (fontset) - && !BASE_FONTSET_P (fontset)) - { - elt = FONTSET_REF_VIA_BASE (fontset, c); - if (!NILP (elt)) - { - /* A suitable face for C is already recorded, which means - that a proper font is already loaded. */ - int face_id = XINT (elt); - - xassert (face_id == face->id); - face = FACE_FROM_ID (f, face_id); - return (*get_font_info_func) (f, face->font_info_id); - } - - if (!fontname && charset == CHARSET_ASCII) - { - elt = FONTSET_ASCII (fontset); - fontname = SDATA (XCDR (elt)); - } - } + Lisp_Object fullname; if (!fontname) /* No way to get fontname. */ - return 0; - - fontp = (*load_font_func) (f, fontname, size); - if (!fontp) - return 0; + return NULL; - /* Fill in members (charset, vertical_centering, encoding, etc) of - font_info structure that are not set by (*load_font_func). */ - fontp->charset = charset; + fontp = (*load_font_func) (f, fontname, 0); + if (! fontp || fontp->charset >= 0) + return fontp; + fontname = fontp->full_name; fullname = build_string (fontp->full_name); - fontp->vertical_centering - = (STRINGP (Vvertical_centering_font_regexp) - && (fast_string_match_ignore_case - (Vvertical_centering_font_regexp, fullname) >= 0)); - if (fontp->encoding[1] != FONT_ENCODING_NOT_DECIDED) + if (charset < 0) { - /* The font itself tells which code points to be used. Use this - encoding for all other charsets. */ - int i; + Lisp_Object charset_symbol; - fontp->encoding[0] = fontp->encoding[1]; - for (i = MIN_CHARSET_OFFICIAL_DIMENSION1; i <= MAX_CHARSET; i++) - fontp->encoding[i] = fontp->encoding[1]; + charset_symbol = find_font_encoding (fullname); + if (CONSP (charset_symbol)) + charset_symbol = XCAR (charset_symbol); + charset = XINT (CHARSET_SYMBOL_ID (charset_symbol)); } - else - { - /* The font itself doesn't have information about encoding. */ - int i; + fontp->charset = charset; + fontp->vertical_centering = 0; + fontp->font_encoder = NULL; - /* By default, encoding of ASCII chars is 0 (i.e. 0x00..0x7F), - others is 1 (i.e. 0x80..0xFF). */ - fontp->encoding[0] = 0; - for (i = MIN_CHARSET_OFFICIAL_DIMENSION1; i <= MAX_CHARSET; i++) - fontp->encoding[i] = 1; - /* Then override them by a specification in Vfont_encoding_alist. */ - for (list = Vfont_encoding_alist; CONSP (list); list = XCDR (list)) - { - elt = XCAR (list); - if (CONSP (elt) - && STRINGP (XCAR (elt)) && CONSP (XCDR (elt)) - && (fast_string_match_ignore_case (XCAR (elt), fullname) >= 0)) - { - Lisp_Object tmp; + if (charset != charset_ascii) + { + fontp->vertical_centering + = (STRINGP (Vvertical_centering_font_regexp) + && (fast_string_match_ignore_case + (Vvertical_centering_font_regexp, fullname) >= 0)); - for (tmp = XCDR (elt); CONSP (tmp); tmp = XCDR (tmp)) - if (CONSP (XCAR (tmp)) - && ((i = get_charset_id (XCAR (XCAR (tmp)))) - >= 0) - && INTEGERP (XCDR (XCAR (tmp))) - && XFASTINT (XCDR (XCAR (tmp))) < 4) - fontp->encoding[i] - = XFASTINT (XCDR (XCAR (tmp))); - } - } + if (find_ccl_program_func) + (*find_ccl_program_func) (fontp); } - if (! fontp->font_encoder && find_ccl_program_func) - (*find_ccl_program_func) (fontp); - - /* If we loaded a font for a face that has fontset, record the face - ID in the fontset for C. */ - if (face - && !NILP (fontset) - && !BASE_FONTSET_P (fontset)) - FONTSET_SET (fontset, c, make_number (face->id)); return fontp; } @@ -765,6 +1018,33 @@ fs_load_font (f, c, fontname, id, face) #endif +/* Return ENCODING or a cons of ENCODING and REPERTORY of the font + FONTNAME. ENCODING is a charset symbol that specifies the encoding + of the font. REPERTORY is a charset symbol or nil. */ + + +static Lisp_Object +find_font_encoding (fontname) + Lisp_Object fontname; +{ + Lisp_Object tail, elt; + + for (tail = Vfont_encoding_alist; CONSP (tail); tail = XCDR (tail)) + { + elt = XCAR (tail); + if (CONSP (elt) + && STRINGP (XCAR (elt)) + && fast_string_match_ignore_case (XCAR (elt), fontname) >= 0 + && (SYMBOLP (XCDR (elt)) + ? CHARSETP (XCDR (elt)) + : CONSP (XCDR (elt)) && CHARSETP (XCAR (XCDR (elt))))) + return (XCDR (elt)); + } + /* We don't know the encoding of this font. Let's assume `ascii'. */ + return Qascii; +} + + /* Cache data used by fontset_pattern_regexp. The car part is a pattern string containing at least one wild card, the cdr part is the corresponding regular expression. */ @@ -853,6 +1133,8 @@ fs_query_fontset (name, name_pattern) if (name_pattern != 1) { tem = Frassoc (name, Vfontset_alias_alist); + if (NILP (tem)) + tem = Fassoc (name, Vfontset_alias_alist); if (CONSP (tem) && STRINGP (XCAR (tem))) name = XCAR (tem); else if (name_pattern == 0) @@ -912,9 +1194,7 @@ If REGEXPP is non-nil, PATTERN is a regular expression. */) return FONTSET_NAME (fontset); } -/* Return a list of base fontset names matching PATTERN on frame F. - If SIZE is not 0, it is the size (maximum bound width) of fontsets - to be listed. */ +/* Return a list of base fontset names matching PATTERN on frame F. */ Lisp_Object list_fontsets (f, pattern, size) @@ -941,111 +1221,62 @@ list_fontsets (f, pattern, size) continue; name = FONTSET_NAME (fontset); - if (!NILP (regexp) + if (STRINGP (regexp) ? (fast_string_match (regexp, name) < 0) : strcmp (SDATA (pattern), SDATA (name))) continue; - if (size) - { - struct font_info *fontp; - fontp = FS_LOAD_FONT (f, 0, NULL, id); - if (!fontp || size != fontp->size) - continue; - } val = Fcons (Fcopy_sequence (FONTSET_NAME (fontset)), val); } return val; } -DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, - doc: /* Create a new fontset NAME that contains font information in FONTLIST. -FONTLIST is an alist of charsets vs corresponding font name patterns. */) - (name, fontlist) - Lisp_Object name, fontlist; -{ - Lisp_Object fontset, elements, ascii_font; - Lisp_Object tem, tail, elt; - int id; - (*check_window_system_func) (); - - CHECK_STRING (name); - CHECK_LIST (fontlist); +/* Free all realized fontsets whose base fontset is BASE. */ - name = Fdowncase (name); - id = fs_query_fontset (name, 2); - if (id >= 0) - { - fontset = FONTSET_FROM_ID (id); - tem = FONTSET_NAME (fontset); - error ("Fontset `%s' matches the existing fontset `%s'", - SDATA (name), SDATA (tem)); - } +static void +free_realized_fontsets (base) + Lisp_Object base; +{ +#if 0 + int id; - /* Check the validity of FONTLIST while creating a template for - fontset elements. */ - elements = ascii_font = Qnil; - for (tail = fontlist; CONSP (tail); tail = XCDR (tail)) + /* For the moment, this doesn't work because free_realized_face + doesn't remove FACE from a cache. Until we find a solution, we + suppress this code, and simply use Fclear_face_cache even though + that is not efficient. */ + BLOCK_INPUT; + for (id = 0; id < ASIZE (Vfontset_table); id++) { - int c, charset; - - tem = XCAR (tail); - if (!CONSP (tem) - || (charset = get_charset_id (XCAR (tem))) < 0 - || (!STRINGP (XCDR (tem)) && !CONSP (XCDR (tem)))) - error ("Elements of fontlist must be a cons of charset and font name pattern"); + Lisp_Object this = AREF (Vfontset_table, id); - tem = XCDR (tem); - if (STRINGP (tem)) - tem = Fdowncase (tem); - else - tem = Fcons (Fdowncase (Fcar (tem)), Fdowncase (Fcdr (tem))); - if (charset == CHARSET_ASCII) - ascii_font = tem; - else + if (EQ (FONTSET_BASE (this), base)) { - c = MAKE_CHAR (charset, 0, 0); - elements = Fcons (Fcons (make_number (c), tem), elements); - } - } + Lisp_Object tail; - if (NILP (ascii_font)) - error ("No ASCII font in the fontlist"); + for (tail = FONTSET_FACE_ALIST (this); CONSP (tail); + tail = XCDR (tail)) + { + FRAME_PTR f = XFRAME (FONTSET_FRAME (this)); + int face_id = XINT (XCDR (XCAR (tail))); + struct face *face = FACE_FROM_ID (f, face_id); - fontset = make_fontset (Qnil, name, Qnil); - FONTSET_ASCII (fontset) = Fcons (make_number (0), ascii_font); - for (; CONSP (elements); elements = XCDR (elements)) - { - elt = XCAR (elements); - tem = XCDR (elt); - if (STRINGP (tem)) - tem = font_family_registry (tem, 0); - tem = Fcons (XCAR (elt), tem); - FONTSET_SET (fontset, XINT (XCAR (elt)), tem); + /* Face THIS itself is also freed by the following call. */ + free_realized_face (f, face); + } + } } - - return Qnil; -} - - -/* Clear all elements of FONTSET for multibyte characters. */ - -static void -clear_fontset_elements (fontset) - Lisp_Object fontset; -{ - int i; - - for (i = CHAR_TABLE_SINGLE_BYTE_SLOTS; i < CHAR_TABLE_ORDINARY_SLOTS; i++) - XCHAR_TABLE (fontset)->contents[i] = Qnil; + UNBLOCK_INPUT; +#else /* not 0 */ + Fclear_face_cache (Qt); +#endif /* not 0 */ } /* Check validity of NAME as a fontset name and return the corresponding fontset. If not valid, signal an error. - If NAME is nil, return Vdefault_fontset. */ + If NAME is t, return Vdefault_fontset. */ static Lisp_Object check_fontset_name (name) @@ -1053,7 +1284,7 @@ check_fontset_name (name) { int id; - if (EQ (name, Qnil)) + if (EQ (name, Qt)) return Vdefault_fontset; CHECK_STRING (name); @@ -1067,125 +1298,391 @@ check_fontset_name (name) return FONTSET_FROM_ID (id); } -/* Downcase FONTNAME or car and cdr of FONTNAME. If FONTNAME is a - string, maybe change FONTNAME to (FAMILY . REGISTRY). */ +static void +accumulate_script_ranges (arg, range, val) + Lisp_Object arg, range, val; +{ + if (EQ (XCAR (arg), val)) + { + if (CONSP (range)) + XSETCDR (arg, Fcons (Fcons (XCAR (range), XCDR (range)), XCDR (arg))); + else + XSETCDR (arg, Fcons (Fcons (range, range), XCDR (arg))); + } +} -static Lisp_Object -regularize_fontname (Lisp_Object fontname) + +/* Return an ASCII font name generated from fontset name NAME and + ASCII font specification ASCII_SPEC. NAME is a string conforming + to XLFD. ASCII_SPEC is a vector: + [FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY]. */ + +static INLINE Lisp_Object +generate_ascii_font_name (name, ascii_spec) + Lisp_Object name, ascii_spec; { - Lisp_Object family, registry; + Lisp_Object vec; + int i; - if (STRINGP (fontname)) - return font_family_registry (Fdowncase (fontname), 0); + vec = split_font_name_into_vector (name); + for (i = FONT_SPEC_FAMILY_INDEX; i <= FONT_SPEC_ADSTYLE_INDEX; i++) + if (! NILP (AREF (ascii_spec, i))) + ASET (vec, 1 + i, AREF (ascii_spec, i)); + if (! NILP (AREF (ascii_spec, FONT_SPEC_REGISTRY_INDEX))) + ASET (vec, 12, AREF (ascii_spec, FONT_SPEC_REGISTRY_INDEX)); + return build_font_name_from_vector (vec); +} - CHECK_CONS (fontname); - family = XCAR (fontname); - registry = XCDR (fontname); - if (!NILP (family)) - { - CHECK_STRING (family); - family = Fdowncase (family); - } - if (!NILP (registry)) +/* 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; + +/* 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. */ + +static void +set_fontset_font (fontset, range) + Lisp_Object fontset, range; +{ + if (from_arg < to_arg) { - CHECK_STRING (registry); - registry = Fdowncase (registry); + int from = XINT (XCAR (range)), to = XINT (XCDR (range)); + + if (from < from_arg) + { + if (to > to_arg) + { + Lisp_Object range2; + + 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) + return; + else + { + if (from < to_arg) + range = Fcons (make_number (to_arg), XCDR (range)); + } } - return Fcons (family, registry); + FONTSET_ADD (fontset, range, font_def_arg, add_arg); } -DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 4, 0, - doc: /* Modify fontset NAME to use FONTNAME for CHARACTER. -If NAME is nil, modify the default fontset. -CHARACTER may be a cons; (FROM . TO), where FROM and TO are -non-generic characters. In that case, use FONTNAME -for all characters in the range FROM and TO (inclusive). -CHARACTER may be a charset. In that case, use FONTNAME -for all character in the charsets. +DEFUN ("set-fontset-font", Fset_fontset_font, Sset_fontset_font, 3, 5, 0, + doc: /* +Modify fontset NAME to use FONT-SPEC for TARGET characters. + +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). + +TARGET may be a script name symbol. In that case, use FONT-SPEC for +all characters that belong to the script. + +TARGET may be a charset. In that case, use FONT-SPEC for all +characters in the charset. + +TARGET may be nil. In that case, use FONT-SPEC for any characters for +that no FONT-SPEC is specified. -FONTNAME may be a cons; (FAMILY . REGISTRY), where FAMILY is a family -name of a font, REGISTRY is a registry name of a font. */) - (name, character, fontname, frame) - Lisp_Object name, character, fontname, frame; +FONT-SPEC may one of these: + * A cons (FAMILY . REGISTRY), where FAMILY is a font family name and + REGISTRY is a font registry name. FAMILY may contains foundry + name, and REGISTRY may contains encoding name. + * A font name string. + +Optional 4th argument FRAME, if non-nil, is a frame. This argument is +kept for backward compatibility and has no meaning. + +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 fontset, elt; - Lisp_Object realized; - int from, to; - int id; + Lisp_Object fontset; + Lisp_Object font_def, registry, family; + Lisp_Object encoding, repertory; + Lisp_Object range_list; + struct charset *charset = NULL; fontset = check_fontset_name (name); - if (CONSP (character)) + /* The arg FRAME is kept for backward compatibility. We only check + the validity. */ + if (!NILP (frame)) + CHECK_LIVE_FRAME (frame); + + if (VECTORP (font_spec)) + { + /* FONT_SPEC should have this form: + [ FAMILY WEIGHT SLANT WIDTH ADSTYLE REGISTRY ] + This is a feature not yet documented because WEIGHT thru + ADSTYLE are ignored for the moment. */ + int j; + + if (ASIZE (font_spec) != FONT_SPEC_MAX_INDEX) + args_out_of_range (make_number (FONT_SPEC_MAX_INDEX), + make_number (ASIZE (font_spec))); + + font_spec = Fcopy_sequence (font_spec); + for (j = 0; j < FONT_SPEC_MAX_INDEX - 1; j++) + if (! NILP (AREF (font_spec, j))) + { + CHECK_STRING (AREF (font_spec, j)); + ASET (font_spec, j, Fdowncase (AREF (font_spec, j))); + } + /* REGISTRY should not be omitted. */ + CHECK_STRING (AREF (font_spec, FONT_SPEC_REGISTRY_INDEX)); + registry = Fdowncase (AREF (font_spec, FONT_SPEC_REGISTRY_INDEX)); + ASET (font_spec, FONT_SPEC_REGISTRY_INDEX, registry); + + } + else if (CONSP (font_spec)) { - /* CH should be (FROM . TO) where FROM and TO are non-generic - characters. */ - CHECK_NUMBER_CAR (character); - CHECK_NUMBER_CDR (character); - from = XINT (XCAR (character)); - to = XINT (XCDR (character)); - if (!char_valid_p (from, 0) || !char_valid_p (to, 0)) - error ("Character range should be by non-generic characters"); - if (!NILP (name) - && (SINGLE_BYTE_CHAR_P (from) || SINGLE_BYTE_CHAR_P (to))) - error ("Can't change font for a single byte character"); + family = XCAR (font_spec); + registry = XCDR (font_spec); + + if (! NILP (family)) + { + CHECK_STRING (family); + family = Fdowncase (family); + } + CHECK_STRING (registry); + registry = Fdowncase (registry); + font_spec = Fmake_vector (make_number (FONT_SPEC_MAX_INDEX), Qnil); + ASET (font_spec, FONT_SPEC_FAMILY_INDEX, family); + ASET (font_spec, FONT_SPEC_REGISTRY_INDEX, registry); } - else if (SYMBOLP (character)) + else { - elt = Fget (character, Qcharset); - if (!VECTORP (elt) || ASIZE (elt) < 1 || !NATNUMP (AREF (elt, 0))) - error ("Invalid charset: %s", SDATA (SYMBOL_NAME (character))); - from = MAKE_CHAR (XINT (AREF (elt, 0)), 0, 0); - to = from; + CHECK_STRING (font_spec); + font_spec = Fdowncase (font_spec); } + + if (STRINGP (font_spec)) + encoding = find_font_encoding (font_spec); else + encoding = find_font_encoding (concat2 (family, registry)); + if (SYMBOLP (encoding)) { - CHECK_NUMBER (character); - from = XINT (character); - to = from; + CHECK_CHARSET (encoding); + encoding = repertory = CHARSET_SYMBOL_ID (encoding); } - if (!char_valid_p (from, 1)) - invalid_character (from); - if (SINGLE_BYTE_CHAR_P (from)) - error ("Can't change font for a single byte character"); - if (from < to) + else { - if (!char_valid_p (to, 1)) - invalid_character (to); - if (SINGLE_BYTE_CHAR_P (to)) - error ("Can't change font for a single byte character"); + repertory = XCDR (encoding); + encoding = XCAR (encoding); + CHECK_CHARSET (encoding); + encoding = CHARSET_SYMBOL_ID (encoding); + if (! NILP (repertory) && SYMBOLP (repertory)) + { + CHECK_CHARSET (repertory); + repertory = CHARSET_SYMBOL_ID (repertory); + } } + font_def = Fmake_vector (make_number (3), font_spec); + ASET (font_def, 1, encoding); + ASET (font_def, 2, repertory); - /* The arg FRAME is kept for backward compatibility. We only check - the validity. */ - if (!NILP (frame)) - CHECK_LIVE_FRAME (frame); - - elt = Fcons (make_number (from), regularize_fontname (fontname)); - for (; from <= to; from++) - FONTSET_SET (fontset, from, elt); - Foptimize_char_table (fontset); + if (CHARACTERP (target)) + range_list = Fcons (Fcons (target, target), Qnil); + else if (CONSP (target)) + { + Lisp_Object from, to; - /* If there's a realized fontset REALIZED whose parent is FONTSET, - clear all the elements of REALIZED and free all multibyte faces - whose fontset is REALIZED. This way, the specified character(s) - are surely redisplayed by a correct font. */ - for (id = 0; id < ASIZE (Vfontset_table); id++) + from = Fcar (target); + to = Fcdr (target); + CHECK_CHARACTER (from); + CHECK_CHARACTER (to); + range_list = Fcons (target, Qnil); + } + else if (SYMBOLP (target) && !NILP (target)) { - realized = AREF (Vfontset_table, id); - if (!NILP (realized) - && !BASE_FONTSET_P (realized) - && EQ (FONTSET_BASE (realized), fontset)) + Lisp_Object script_list; + Lisp_Object val; + + range_list = Qnil; + script_list = XCHAR_TABLE (Vchar_script_table)->extras[0]; + if (! NILP (Fmemq (target, script_list))) { - FRAME_PTR f = XFRAME (FONTSET_FRAME (realized)); - clear_fontset_elements (realized); - free_realized_multibyte_face (f, id); + val = Fcons (target, Qnil); + map_char_table (accumulate_script_ranges, Qnil, Vchar_script_table, + val); + range_list = XCDR (val); } + if (CHARSETP (target)) + { + if (EQ (target, Qascii)) + { + 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); + } + } + else if (NILP (range_list)) + error ("Invalid script or charset name: %s", + SDATA (SYMBOL_NAME (target))); + } + else if (NILP (target)) + range_list = Fcons (Qnil, Qnil); + else + error ("Invalid target for setting a font"); + + + 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))); + + map_charset_chars (set_fontset_font, Qnil, fontset, charset, + CHARSET_MIN_CODE (charset), + CHARSET_MAX_CODE (charset)); } + for (; CONSP (range_list); range_list = XCDR (range_list)) + FONTSET_ADD (fontset, XCAR (range_list), font_def, add); + + /* Free all realized fontsets whose base is FONTSET. This way, the + specified character(s) are surely redisplayed by a correct + font. */ + free_realized_fontsets (fontset); return Qnil; } + +DEFUN ("new-fontset", Fnew_fontset, Snew_fontset, 2, 2, 0, + doc: /* Create a new fontset NAME from font information in FONTLIST. + +FONTLIST is an alist of scripts vs the corresponding font specification list. +Each element of FONTLIST has the form (SCRIPT FONT-SPEC ...), where a +character of SCRIPT is displayed by a font that matches one of +FONT-SPEC. + +SCRIPT is a symbol that appears in the first extra slot of the +char-table `char-script-table'. + +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 fontset; + Lisp_Object val; + int id; + + CHECK_STRING (name); + CHECK_LIST (fontlist); + + id = fs_query_fontset (name, 0); + if (id < 0) + { + name = Fdowncase (name); + val = split_font_name_into_vector (name); + if (NILP (val) || NILP (AREF (val, 12)) || NILP (AREF (val, 13))) + error ("Fontset name must be in XLFD format"); + if (strcmp (SDATA (AREF (val, 12)), "fontset")) + error ("Registry field of fontset name must be \"fontset\""); + Vfontset_alias_alist + = Fcons (Fcons (name, + concat2 (concat2 (AREF (val, 12), build_string ("-")), + AREF (val, 13))), + Vfontset_alias_alist); + ASET (val, 12, build_string ("iso8859-1")); + fontset = make_fontset (Qnil, name, Qnil); + FONTSET_ASCII (fontset) = build_font_name_from_vector (val); + } + else + { + fontset = FONTSET_FROM_ID (id);; + free_realized_fontsets (fontset); + Fset_char_table_range (fontset, Qt, Qnil); + } + + for (; ! NILP (fontlist); fontlist = Fcdr (fontlist)) + { + Lisp_Object elt, script; + + elt = Fcar (fontlist); + script = Fcar (elt); + elt = Fcdr (elt); + if (CONSP (elt) && (NILP (XCDR (elt)) || CONSP (XCDR (elt)))) + for (; CONSP (elt); elt = XCDR (elt)) + Fset_fontset_font (name, script, XCAR (elt), Qnil, Qappend); + else + Fset_fontset_font (name, script, elt, Qnil, Qappend); + } + return name; +} + + +/* Alist of automatically created fontsets. Each element is a cons + (FONTNAME . FONTSET-ID). */ +static Lisp_Object auto_fontset_alist; + +int +new_fontset_from_font_name (Lisp_Object fontname) +{ + Lisp_Object val; + Lisp_Object name; + Lisp_Object vec; + int id; + + fontname = Fdowncase (fontname); + val = Fassoc (fontname, auto_fontset_alist); + if (CONSP (val)) + return XINT (XCDR (val)); + + vec = split_font_name_into_vector (fontname); + if ( NILP (vec)) + vec = Fmake_vector (make_number (14), build_string ("")); + ASET (vec, 12, build_string ("fontset")); + if (NILP (auto_fontset_alist)) + { + ASET (vec, 13, build_string ("startup")); + name = build_font_name_from_vector (vec); + } + else + { + char temp[20]; + int len = XINT (Flength (auto_fontset_alist)); + + sprintf (temp, "auto%d", len); + ASET (vec, 13, build_string (temp)); + name = build_font_name_from_vector (vec); + } + name = Fnew_fontset (name, list2 (list2 (Qascii, fontname), + list2 (Fcons (make_number (0), + make_number (MAX_CHAR)), + fontname))); + id = fs_query_fontset (name, 0); + auto_fontset_alist + = Fcons (Fcons (fontname, make_number (id)), auto_fontset_alist); + return id; +} + + DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0, doc: /* Return information about a font named NAME on frame FRAME. If FRAME is omitted or nil, use the selected frame. @@ -1271,16 +1768,19 @@ DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, { int pos, pos_byte, dummy; int face_id; - int c, code; + int c; struct frame *f; struct face *face; + Lisp_Object charset, rfont_def; + int id; if (NILP (position)) { - CHECK_NATNUM (ch); + CHECK_CHARACTER (ch); c = XINT (ch); f = XFRAME (selected_frame); face_id = DEFAULT_FACE_ID; + pos = -1; } else { @@ -1308,228 +1808,231 @@ DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0, } if (! CHAR_VALID_P (c, 0)) return Qnil; - face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c); + face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil); face = FACE_FROM_ID (f, face_id); - if (! face->font || ! face->font_name) - return Qnil; - - { - struct font_info *fontp = (*get_font_info_func) (f, face->font_info_id); - XChar2b char2b; - int c1, c2, charset; - - SPLIT_CHAR (c, charset, c1, c2); - if (c2 > 0) - STORE_XCHAR2B (&char2b, c1, c2); - else - STORE_XCHAR2B (&char2b, 0, c1); - rif->encode_char (c, &char2b, fontp, NULL); - code = (XCHAR2B_BYTE1 (&char2b) << 8) | XCHAR2B_BYTE2 (&char2b); - } - return Fcons (build_string (face->font_name), make_number (code)); + charset = Fget_char_property (position, Qcharset, Qnil); + if (CHARSETP (charset)) + id = XINT (CHARSET_SYMBOL_ID (charset)); + else + id = -1; + rfont_def = fontset_font (FONTSET_FROM_ID (face->fontset), c, face, id); + if (VECTORP (rfont_def) && STRINGP (AREF (rfont_def, 3))) + { + Lisp_Object font_def; + struct font_info *fontp; + struct charset *charset; + XChar2b char2b; + int code; + + font_def = AREF (rfont_def, 2); + charset = CHARSET_FROM_ID (XINT (AREF (font_def, 1))); + code = ENCODE_CHAR (charset, c); + if (code == CHARSET_INVALID_CODE (charset)) + return (Fcons (AREF (rfont_def, 3), Qnil)); + STORE_XCHAR2B (&char2b, ((code >> 8) & 0xFF), (code & 0xFF)); + fontp = (*get_font_info_func) (f, XINT (AREF (rfont_def, 1))); + rif->encode_char (c, &char2b, fontp, charset, NULL); + code = (XCHAR2B_BYTE1 (&char2b) << 8) | XCHAR2B_BYTE2 (&char2b); + return (Fcons (AREF (rfont_def, 3), make_number (code))); + } + return Qnil; } -/* Called from Ffontset_info via map_char_table on each leaf of - fontset. ARG is a copy of the default fontset. The current leaf - is indexed by CHARACTER and has value ELT. This function override - the copy by ELT if ELT is not nil. */ +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 of which elements has this form. -static void -override_font_info (fontset, character, elt) - Lisp_Object fontset, character, elt; -{ - if (! NILP (elt)) - Faset (fontset, character, elt); -} + ((FONT-PATTERN OPENED-FONT ...) ...) -/* Called from Ffontset_info via map_char_table on each leaf of - fontset. ARG is a list (LAST FONT-INFO ...), where LAST is `(last - ARG)' and FONT-INFOs have this form: - (CHAR FONT-SPEC) or ((FROM . TO) FONT-SPEC) - The current leaf is indexed by CHARACTER and has value ELT. This - function add the information of the current leaf to ARG by - appending a new element or modifying the last element. */ +FONT-PATTERN is a vector: -static void -accumulate_font_info (arg, character, elt) - Lisp_Object arg, character, elt; -{ - Lisp_Object last, last_char, last_elt; + [ FAMILY WEIGHT SLANT SWIDTH ADSTYLE REGISTRY ] - if (!CONSP (elt) && !SINGLE_BYTE_CHAR_P (XINT (character))) - elt = FONTSET_REF (Vdefault_fontset, XINT (character)); - if (!CONSP (elt)) - return; - last = XCAR (arg); - last_char = XCAR (XCAR (last)); - last_elt = XCAR (XCDR (XCAR (last))); - elt = XCDR (elt); - if (!NILP (Fequal (elt, last_elt))) - { - int this_charset = CHAR_CHARSET (XINT (character)); +or a string of font name pattern. - if (CONSP (last_char)) /* LAST_CHAR == (FROM . TO) */ - { - if (this_charset == CHAR_CHARSET (XINT (XCAR (last_char)))) - { - XSETCDR (last_char, character); - return; - } - } - else if (XINT (last_char) == XINT (character)) - return; - else if (this_charset == CHAR_CHARSET (XINT (last_char))) - { - XSETCAR (XCAR (last), Fcons (last_char, character)); - return; - } - } - XSETCDR (last, Fcons (Fcons (character, Fcons (elt, Qnil)), Qnil)); - XSETCAR (arg, XCDR (last)); -} +OPENED-FONT is a name of a font actually opened. - -DEFUN ("fontset-info", Ffontset_info, Sfontset_info, 1, 2, 0, - doc: /* Return information about a fontset named NAME on frame FRAME. -If NAME is nil, return information about the default fontset. -The value is a vector: - [ SIZE HEIGHT ((CHARSET-OR-RANGE FONT-SPEC OPENED ...) ...) ], -where, - SIZE is the maximum bound width of ASCII font in the fontset, - HEIGHT is the maximum bound height of ASCII font in the fontset, - CHARSET-OR-RANGE is a charset, a character (may be a generic character) - or a cons of two characters specifying the range of characters. - FONT-SPEC is a fontname pattern string or a cons (FAMILY . REGISTRY), - where FAMILY is a `FAMILY' field of a XLFD font name, - REGISTRY is a `CHARSET_REGISTRY' field of a XLFD font name. - FAMILY may contain a `FOUNDRY' field at the head. - REGISTRY may contain a `CHARSET_ENCODING' field at the tail. - OPENEDs are names of fonts actually opened. -If the ASCII font is not yet opened, SIZE and HEIGHT are 0. -If FRAME is omitted, it defaults to the currently selected frame. */) - (name, frame) - Lisp_Object name, frame; +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 abobe. */) + (fontset, frame) + Lisp_Object fontset, frame; { - Lisp_Object fontset; FRAME_PTR f; - Lisp_Object indices[3]; - Lisp_Object val, tail, elt; - Lisp_Object *realized; - struct font_info *fontp = NULL; - int n_realized = 0; - int i; + Lisp_Object *realized[2], fontsets[2], tables[2]; + Lisp_Object val, elt; + int c, i, j, k; (*check_window_system_func) (); - fontset = check_fontset_name (name); + fontset = check_fontset_name (fontset); if (NILP (frame)) frame = selected_frame; CHECK_LIVE_FRAME (frame); f = XFRAME (frame); - /* Recode realized fontsets whose base is FONTSET in the table - `realized'. */ - realized = (Lisp_Object *) alloca (sizeof (Lisp_Object) - * ASIZE (Vfontset_table)); - for (i = 0; i < ASIZE (Vfontset_table); i++) + /* Recode fontsets realized on FRAME from the base fontset FONTSET + in the table `realized'. */ + realized[0] = (Lisp_Object *) alloca (sizeof (Lisp_Object) + * ASIZE (Vfontset_table)); + for (i = j = 0; i < ASIZE (Vfontset_table); i++) { elt = FONTSET_FROM_ID (i); if (!NILP (elt) - && EQ (FONTSET_BASE (elt), fontset)) - realized[n_realized++] = elt; + && EQ (FONTSET_BASE (elt), fontset) + && EQ (FONTSET_FRAME (elt), frame)) + realized[0][j++] = elt; } + realized[0][j] = Qnil; - if (! EQ (fontset, Vdefault_fontset)) + realized[1] = (Lisp_Object *) alloca (sizeof (Lisp_Object) + * ASIZE (Vfontset_table)); + for (i = j = 0; ! NILP (realized[0][i]); i++) { - /* Merge FONTSET onto the default fontset. */ - val = Fcopy_sequence (Vdefault_fontset); - map_char_table (override_font_info, Qnil, fontset, fontset, val, 0, indices); - fontset = val; + elt = FONTSET_DEFAULT (realized[0][i]); + if (! NILP (elt)) + realized[1][j++] = elt; } + 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; - /* Accumulate information of the fontset in VAL. The format is - (LAST FONT-INFO FONT-INFO ...), where FONT-INFO is (CHAR-OR-RANGE - FONT-SPEC). See the comment for accumulate_font_info for the - detail. */ - val = Fcons (Fcons (make_number (0), - Fcons (XCDR (FONTSET_ASCII (fontset)), Qnil)), - Qnil); - val = Fcons (val, val); - map_char_table (accumulate_font_info, Qnil, fontset, fontset, val, 0, indices); - val = XCDR (val); - - /* For each FONT-INFO, if CHAR_OR_RANGE (car part) is a generic - character for a charset, replace it with the charset symbol. If - fonts are opened for FONT-SPEC, append the names of the fonts to - FONT-SPEC. */ - for (tail = val; CONSP (tail); tail = XCDR (tail)) + /* Accumulate information of the fontset in TABLE. The format of + each element is ((FONT-SPEC OPENED-FONT ...) ...). */ + for (k = 0; k <= 1; k++) { - int c; - elt = XCAR (tail); - if (INTEGERP (XCAR (elt))) - { - int charset, c1, c2; - c = XINT (XCAR (elt)); - SPLIT_CHAR (c, charset, c1, c2); - if (c1 == 0) - XSETCAR (elt, CHARSET_SYMBOL (charset)); - } - else - c = XINT (XCAR (XCAR (elt))); - for (i = 0; i < n_realized; i++) + for (c = 0; c <= MAX_CHAR; ) { - Lisp_Object face_id, font; - struct face *face; + int from, to; - face_id = FONTSET_REF_VIA_BASE (realized[i], c); - if (INTEGERP (face_id)) + if (c <= MAX_5_BYTE_CHAR) { - face = FACE_FROM_ID (f, XINT (face_id)); - if (face && face->font && face->font_name) + val = char_table_ref_and_range (fontsets[k], c, &from, &to); + if (to > MAX_5_BYTE_CHAR) + to = MAX_5_BYTE_CHAR; + } + else + { + val = FONTSET_FALLBACK (fontsets[k]); + to = MAX_CHAR; + } + if (VECTORP (val)) + { + Lisp_Object alist; + + /* At first, set ALIST to ((FONT-SPEC) ...). */ + for (alist = Qnil, i = 0; i < ASIZE (val); i++) + alist = Fcons (Fcons (AREF (AREF (val, i), 0), Qnil), alist); + alist = Fnreverse (alist); + + /* Then store opend font names to cdr of each elements. */ + for (i = 0; ! NILP (realized[k][i]); i++) { - font = build_string (face->font_name); - if (NILP (Fmember (font, XCDR (XCDR (elt))))) - XSETCDR (XCDR (elt), Fcons (font, XCDR (XCDR (elt)))); + if (c <= MAX_5_BYTE_CHAR) + val = FONTSET_REF (realized[k][i], c); + else + val = FONTSET_FALLBACK (realized[k][i]); + if (! VECTORP (val)) + continue; + /* VAL is [int int ? + [FACE-ID FONT-INDEX FONT-DEF FONT-NAME] ...]. + If a font of an element is already opened, + FONT-NAME is the name of a opened font. */ + for (j = 3; j < ASIZE (val); j++) + if (STRINGP (AREF (AREF (val, j), 3))) + { + Lisp_Object font_idx; + + font_idx = AREF (AREF (val, j), 1); + elt = Fassq (AREF (AREF (AREF (val, j), 2), 0), alist); + if (CONSP (elt) + && NILP (Fmemq (font_idx, XCDR(elt)))) + nconc2 (elt, Fcons (font_idx, Qnil)); + } } + for (val = alist; CONSP (val); val = XCDR (val)) + for (elt = XCDR (XCAR (val)); CONSP (elt); elt = XCDR (elt)) + { + struct font_info *font_info + = (*get_font_info_func) (f, XINT (XCAR (elt))); + XSETCAR (elt, build_string (font_info->full_name)); + } + + /* Store ALIST in TBL for characters C..TO. */ + if (c <= MAX_5_BYTE_CHAR) + char_table_set_range (tables[k], c, to, alist); + else + XCHAR_TABLE (tables[k])->defalt = alist; } + c = to + 1; } } - elt = Fcdr (Fcdr (Fassq (CHARSET_SYMBOL (CHARSET_ASCII), val))); - if (CONSP (elt)) - { - elt = XCAR (elt); - fontp = (*query_font_func) (f, SDATA (elt)); - } - val = Fmake_vector (make_number (3), val); - AREF (val, 0) = fontp ? make_number (fontp->size) : make_number (0); - AREF (val, 1) = fontp ? make_number (fontp->height) : make_number (0); - return val; + return tables[0]; } -DEFUN ("fontset-font", Ffontset_font, Sfontset_font, 2, 2, 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 nil, find a font name pattern in the default fontset. */) - (name, ch) - Lisp_Object name, ch; +If NAME is t, find a pattern in the default fontset. + +The value has the form (FAMILY . REGISTRY), where FAMILY is a font +family name and REGISTRY is a font registry name. This is actually +the first font name pattern for CH in the fontset or in the default +fontset. + +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; { int c; - Lisp_Object fontset, elt; + Lisp_Object fontset, elt, list, repertory, val; + int i, j; fontset = check_fontset_name (name); - CHECK_NUMBER (ch); + CHECK_CHARACTER (ch); c = XINT (ch); - if (!char_valid_p (c, 1)) - invalid_character (c); - - elt = FONTSET_REF (fontset, c); - if (CONSP (elt)) - elt = XCDR (elt); + list = Qnil; + while (1) + { + for (i = 0, elt = FONTSET_REF (fontset, c); i < 2; + i++, elt = FONTSET_FALLBACK (fontset)) + if (VECTORP (elt)) + for (j = 0; j < ASIZE (elt); j++) + { + val = AREF (elt, j); + repertory = AREF (val, 1); + if (INTEGERP (repertory)) + { + struct charset *charset = CHARSET_FROM_ID (XINT (repertory)); - return elt; + if (! CHAR_CHARSET_P (c, charset)) + continue; + } + else if (CHAR_TABLE_P (repertory)) + { + if (NILP (CHAR_TABLE_REF (repertory, c))) + continue; + } + val = AREF (val, 0); + val = Fcons (AREF (val, 0), AREF (val, 5)); + if (NILP (all)) + return val; + list = Fcons (val, list); + } + if (EQ (fontset, Vdefault_fontset)) + break; + fontset = Vdefault_fontset; + } + return (Fnreverse (list)); } DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, @@ -1551,59 +2054,55 @@ DEFUN ("fontset-list", Ffontset_list, Sfontset_list, 0, 0, 0, return list; } -DEFUN ("set-overriding-fontspec-internal", Fset_overriding_fontspec_internal, - Sset_overriding_fontspec_internal, 1, 1, 0, - doc: /* Internal use only. - -FONTLIST is an alist of TARGET vs FONTNAME, where TARGET is a charset -or a char-table, FONTNAME have the same meanings as in -`set-fontset-font'. - -It overrides the font specifications for each TARGET in the default -fontset by the corresponding FONTNAME. -If TARGET is a charset, targets are all characters in the charset. If -TARGET is a char-table, targets are characters whose value is non-nil -in the table. +#ifdef FONTSET_DEBUG -It is intended that this function is called only from -`set-language-environment'. */) - (fontlist) - Lisp_Object fontlist; +Lisp_Object +dump_fontset (fontset) + Lisp_Object fontset; { - Lisp_Object tail; + Lisp_Object vec; + + vec = Fmake_vector (make_number (3), Qnil); + ASET (vec, 0, FONTSET_ID (fontset)); - fontlist = Fcopy_sequence (fontlist); - /* Now FONTLIST is ((TARGET . FONTNAME) ...). Reform it to ((TARGET - nil nil nil FONTSPEC) ...), where TARGET is a charset-id or a - char-table. */ - for (tail = fontlist; CONSP (tail); tail = XCDR (tail)) + if (BASE_FONTSET_P (fontset)) { - Lisp_Object elt, target; + ASET (vec, 1, FONTSET_NAME (fontset)); + } + else + { + Lisp_Object frame; - elt = XCAR (tail); - target = Fcar (elt); - elt = Fcons (Qnil, regularize_fontname (Fcdr (elt))); - if (! CHAR_TABLE_P (target)) + frame = FONTSET_FRAME (fontset); + if (FRAMEP (frame)) { - int charset, c; - - CHECK_SYMBOL (target); - charset = get_charset_id (target); - if (charset < 0) - error ("Invalid charset %s", SDATA (SYMBOL_NAME (target))); - target = make_number (charset); - c = MAKE_CHAR (charset, 0, 0); - XSETCAR (elt, make_number (c)); + FRAME_PTR f = XFRAME (frame); + + if (FRAME_LIVE_P (f)) + ASET (vec, 1, f->name); + else + ASET (vec, 1, Qt); } - elt = Fcons (target, Fcons (Qnil, Fcons (Qnil, elt))); - XSETCAR (tail, elt); + if (!NILP (FONTSET_DEFAULT (fontset))) + ASET (vec, 2, FONTSET_ID (FONTSET_DEFAULT (fontset))); } - Voverriding_fontspec_alist = fontlist; - clear_face_cache (0); - ++windows_or_buffers_changed; - return Qnil; + return vec; +} + +DEFUN ("fontset-list-all", Ffontset_list_all, Sfontset_list_all, 0, 0, 0, + doc: /* Return a brief summary of all fontsets for debug use. */) + () +{ + Lisp_Object val; + int i; + + for (i = 0, val = Qnil; i < ASIZE (Vfontset_table); i++) + if (! NILP (AREF (Vfontset_table, i))) + val = Fcons (dump_fontset (AREF (Vfontset_table, i)), val); + return (Fnreverse (val)); } +#endif /* FONTSET_DEBUG */ void syms_of_fontset () @@ -1612,9 +2111,13 @@ syms_of_fontset () /* Window system initializer should have set proper functions. */ abort (); - Qfontset = intern ("fontset"); - staticpro (&Qfontset); - Fput (Qfontset, Qchar_table_extra_slots, make_number (3)); + DEFSYM (Qfontset, "fontset"); + Fput (Qfontset, Qchar_table_extra_slots, make_number (9)); + DEFSYM (Qfontset_info, "fontset-info"); + Fput (Qfontset_info, Qchar_table_extra_slots, make_number (1)); + + DEFSYM (Qprepend, "prepend"); + DEFSYM (Qappend, "append"); Vcached_fontset_data = Qnil; staticpro (&Vcached_fontset_data); @@ -1627,48 +2130,49 @@ syms_of_fontset () FONTSET_ID (Vdefault_fontset) = make_number (0); FONTSET_NAME (Vdefault_fontset) = build_string ("-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"); -#if defined (MAC_OS) - FONTSET_ASCII (Vdefault_fontset) - = Fcons (make_number (0), - build_string ("-apple-monaco-medium-r-*--*-120-*-*-*-*-mac-roman")); + { + Lisp_Object default_ascii_font; + +#if defined (macintosh) + default_ascii_font + = build_string ("-apple-monaco-medium-r-*--*-120-*-*-*-*-mac-roman"); #elif defined (WINDOWSNT) - FONTSET_ASCII (Vdefault_fontset) - = Fcons (make_number (0), - build_string ("-*-courier new-normal-r-*-*-*-100-*-*-*-*-iso8859-1")); + default_ascii_font + = build_string ("-*-courier new-normal-r-*-*-*-100-*-*-*-*-iso8859-1"); #else - FONTSET_ASCII (Vdefault_fontset) - = Fcons (make_number (0), - build_string ("-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1")); + default_ascii_font + = build_string ("-adobe-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-1"); #endif + FONTSET_ASCII (Vdefault_fontset) = default_ascii_font; + } AREF (Vfontset_table, 0) = Vdefault_fontset; next_fontset_id = 1; - Voverriding_fontspec_alist = Qnil; - staticpro (&Voverriding_fontspec_alist); + auto_fontset_alist = Qnil; + staticpro (&auto_fontset_alist); DEFVAR_LISP ("font-encoding-alist", &Vfont_encoding_alist, - doc: /* Alist of fontname patterns vs corresponding encoding info. -Each element looks like (REGEXP . ENCODING-INFO), - where ENCODING-INFO is an alist of CHARSET vs ENCODING. -ENCODING is one of the following integer values: - 0: code points 0x20..0x7F or 0x2020..0x7F7F are used, - 1: code points 0xA0..0xFF or 0xA0A0..0xFFFF are used, - 2: code points 0x20A0..0x7FFF are used, - 3: code points 0xA020..0xFF7F are used. */); + doc: /* +Alist of fontname patterns vs the corresponding encoding and repertory info. +Each element looks like (REGEXP . (ENCODING . REPERTORY)), +where ENCODING is a charset or a char-table, +and REPERTORY is a charset, a char-table, or nil. + +ENCODING is for converting a character to a glyph code of the font. +If ENCODING is a charset, encoding a character by the charset gives +the corresponding glyph code. If ENCODING is a char-table, looking up +the table by a character gives the corresponding glyph code. + +REPERTORY specifies a repertory of characters supported by the font. +If REPERTORY is a charset, all characters beloging to the charset are +supported. If REPERTORY is a char-table, all characters who have a +non-nil value in the table are supported. It REPERTORY is nil, Emacs +gets the repertory information by an opened font and ENCODING. */); Vfont_encoding_alist = Qnil; - Vfont_encoding_alist - = Fcons (Fcons (build_string ("JISX0201"), - Fcons (Fcons (intern ("latin-jisx0201"), make_number (0)), - Qnil)), - Vfont_encoding_alist); - Vfont_encoding_alist - = Fcons (Fcons (build_string ("ISO8859-1"), - Fcons (Fcons (intern ("ascii"), make_number (0)), - Qnil)), - Vfont_encoding_alist); DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent, - doc: /* Char table of characters whose ascent values should be ignored. + doc: /* +Char table of characters whose ascent values should be ignored. If an entry for a character is non-nil, the ascent value of the glyph is assumed to be what specified by _MULE_DEFAULT_ASCENT property of a font. @@ -1677,7 +2181,8 @@ such a character is displayed on screen. */); Vuse_default_ascent = Qnil; DEFVAR_LISP ("ignore-relative-composition", &Vignore_relative_composition, - doc: /* Char table of characters which is not composed relatively. + doc: /* +Char table of characters which is not composed relatively. If an entry for a character is non-nil, a composition sequence which contains that character is displayed so that the glyph of that character is put without considering @@ -1711,7 +2216,9 @@ at the vertical center of lines. */); defsubr (&Sfontset_info); defsubr (&Sfontset_font); defsubr (&Sfontset_list); - defsubr (&Sset_overriding_fontspec_internal); +#ifdef FONTSET_DEBUG + defsubr (&Sfontset_list_all); +#endif } /* arch-tag: ea861585-2f5f-4e5b-9849-d04a9c3a3537 |