font.c 130 KB
Newer Older
Kenichi Handa's avatar
Kenichi Handa committed
1
/* font.c -- "Font" primitives.
Glenn Morris's avatar
Glenn Morris committed
2 3
   Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
   Copyright (C) 2006, 2007, 2008
Kenichi Handa's avatar
Kenichi Handa committed
4 5 6 7 8
     National Institute of Advanced Industrial Science and Technology (AIST)
     Registration Number H13PRO009

This file is part of GNU Emacs.

9
GNU Emacs is free software: you can redistribute it and/or modify
Kenichi Handa's avatar
Kenichi Handa committed
10
it under the terms of the GNU General Public License as published by
11 12
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Kenichi Handa's avatar
Kenichi Handa committed
13 14 15 16 17 18 19

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
20
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
Kenichi Handa's avatar
Kenichi Handa committed
21 22 23 24 25

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
26 27 28
#ifdef HAVE_M17N_FLT
#include <m17n-flt.h>
#endif
Kenichi Handa's avatar
Kenichi Handa committed
29 30 31 32

#include "lisp.h"
#include "buffer.h"
#include "frame.h"
Kenichi Handa's avatar
Kenichi Handa committed
33
#include "window.h"
Kenichi Handa's avatar
Kenichi Handa committed
34 35 36 37 38 39 40
#include "dispextern.h"
#include "charset.h"
#include "character.h"
#include "composite.h"
#include "fontset.h"
#include "font.h"

Kenichi Handa's avatar
Kenichi Handa committed
41 42 43 44 45 46 47 48 49 50 51 52
#ifdef HAVE_X_WINDOWS
#include "xterm.h"
#endif /* HAVE_X_WINDOWS */

#ifdef HAVE_NTGUI
#include "w32term.h"
#endif /* HAVE_NTGUI */

#ifdef MAC_OS
#include "macterm.h"
#endif /* MAC_OS */

Kenichi Handa's avatar
Kenichi Handa committed
53
Lisp_Object Qfont_spec, Qfont_entity, Qfont_object;
Kenichi Handa's avatar
Kenichi Handa committed
54

Kenichi Handa's avatar
Kenichi Handa committed
55 56
Lisp_Object Qopentype;

Kenichi Handa's avatar
Kenichi Handa committed
57
/* Important character set strings.  */
Kenichi Handa's avatar
Kenichi Handa committed
58
Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip;
59

Kenichi Handa's avatar
Kenichi Handa committed
60 61
/* Special vector of zero length.  This is repeatedly used by (struct
   font_driver *)->list when a specified font is not found. */
Kenichi Handa's avatar
Kenichi Handa committed
62
static Lisp_Object null_vector;
Kenichi Handa's avatar
Kenichi Handa committed
63

64 65 66
static Lisp_Object Vfont_weight_table, Vfont_slant_table, Vfont_width_table;

/* Vector of Vfont_weight_table, Vfont_slant_table, and Vfont_width_table. */
Kenichi Handa's avatar
Kenichi Handa committed
67 68
static Lisp_Object font_style_table;

69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125
/* Structure used for tables mapping weight, slant, and width numeric
   values and their names.  */

struct table_entry
{
  int numeric;
  /* The first one is a valid name as a face attribute.
     The second one (if any) is a typical name in XLFD field.  */
  char *names[5];
  Lisp_Object *symbols;
};

/* Table of weight numeric values and their names.  This table must be
   sorted by numeric values in ascending order.  */

static struct table_entry weight_table[] =
{
  { 0, { "thin" }},
  { 20, { "ultra-light", "ultralight" }},
  { 40, { "extra-light", "extralight" }},
  { 50, { "light" }},
  { 75, { "semi-light", "semilight", "demilight", "book" }},
  { 100, { "normal", "medium", "regular" }},
  { 180, { "semi-bold", "semibold", "demibold", "demi" }},
  { 200, { "bold" }},
  { 205, { "extra-bold", "extrabold" }},
  { 210, { "ultra-bold", "ultrabold", "black" }}
};

/* Table of slant numeric values and their names.  This table must be
   sorted by numeric values in ascending order.  */

static struct table_entry slant_table[] =
{
  { 0, { "reverse-oblique", "ro" }},
  { 10, { "reverse-italic", "ri" }},
  { 100, { "normal", "r" }},
  { 200, { "italic" ,"i", "ot" }},
  { 210, { "oblique", "o" }}
};

/* Table of width numeric values and their names.  This table must be
   sorted by numeric values in ascending order.  */

static struct table_entry width_table[] =
{
  { 50, { "ultra-condensed", "ultracondensed" }},
  { 63, { "extra-condensed", "extracondensed" }},
  { 75, { "condensed", "compressed", "narrow" }},
  { 87, { "semi-condensed", "semicondensed", "demicondensed" }},
  { 100, { "normal", "medium", "regular" }},
  { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }},
  { 125, { "expanded" }},
  { 150, { "extra-expanded", "extraexpanded" }},
  { 200, { "ultra-expanded", "ultraexpanded", "wide" }}
};

Kenichi Handa's avatar
Kenichi Handa committed
126
extern Lisp_Object Qnormal;
Kenichi Handa's avatar
Kenichi Handa committed
127 128 129

/* Symbols representing keys of normal font properties.  */
extern Lisp_Object QCtype, QCfamily, QCweight, QCslant, QCwidth, QCsize, QCname;
Kenichi Handa's avatar
Kenichi Handa committed
130
Lisp_Object QCfoundry, QCadstyle, QCregistry;
Kenichi Handa's avatar
Kenichi Handa committed
131
/* Symbols representing keys of font extra info.  */
Kenichi Handa's avatar
Kenichi Handa committed
132 133
Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth;
Lisp_Object QCantialias, QCfont_entity, QCfc_unknown_spec;
134 135
/* Symbols representing values of font spacing property.  */
Lisp_Object Qc, Qm, Qp, Qd;
Kenichi Handa's avatar
Kenichi Handa committed
136

137 138
Lisp_Object Vfont_encoding_alist;

139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156
/* Alist of font registry symbol and the corresponding charsets
   information.  The information is retrieved from
   Vfont_encoding_alist on demand.

   Eash element has the form:
	(REGISTRY . (ENCODING-CHARSET-ID . REPERTORY-CHARSET-ID))
   or
	(REGISTRY . nil)

   In the former form, ENCODING-CHARSET-ID is an ID of a charset that
   encodes a character code to a glyph code of a font, and
   REPERTORY-CHARSET-ID is an ID of a charset that tells if a
   character is supported by a font.

   The latter form means that the information for REGISTRY couldn't be
   retrieved.  */
static Lisp_Object font_charset_alist;

157 158
/* List of all font drivers.  Each font-backend (XXXfont.c) calls
   register_font_driver in syms_of_XXXfont to register its font-driver
Kenichi Handa's avatar
Kenichi Handa committed
159 160 161
   here.  */
static struct font_driver_list *font_driver_list;

Kenichi Handa's avatar
Kenichi Handa committed
162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203


/* Creaters of font-related Lisp object.  */

Lisp_Object
font_make_spec ()
{
  Lisp_Object font_spec;
  struct font_spec *spec
    = ((struct font_spec *)
       allocate_pseudovector (VECSIZE (struct font_spec),
			      FONT_SPEC_MAX, PVEC_FONT));
  XSETFONT (font_spec, spec);
  return font_spec;
}

Lisp_Object
font_make_entity ()
{
  Lisp_Object font_entity;
  struct font_entity *entity
    = ((struct font_entity *)
       allocate_pseudovector (VECSIZE (struct font_entity),
			      FONT_ENTITY_MAX, PVEC_FONT));
  XSETFONT (font_entity, entity);
  return font_entity;
}

Lisp_Object
font_make_object (size)
     int size;
{
  Lisp_Object font_object;
  struct font *font
    = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT);
  XSETFONT (font_object, font);

  return font_object;
}



204
static int font_pixel_size P_ ((FRAME_PTR f, Lisp_Object));
Kenichi Handa's avatar
Kenichi Handa committed
205
static Lisp_Object font_open_entity P_ ((FRAME_PTR, Lisp_Object, int));
Kenichi Handa's avatar
Kenichi Handa committed
206 207
static Lisp_Object font_matching_entity P_ ((FRAME_PTR, Lisp_Object *,
					     Lisp_Object));
Kenichi Handa's avatar
Kenichi Handa committed
208 209 210 211

/* Number of registered font drivers.  */
static int num_font_drivers;

Kenichi Handa's avatar
Kenichi Handa committed
212 213 214

/* Return a Lispy value of a font property value at STR and LEN bytes.
   If STR is "*", it returns nil.
215 216 217
   If FORCE_SYMBOL is zero and all characters in STR are digits, it
   returns an integer.  Otherwise, it returns a symbol interned from
   STR.  */
Kenichi Handa's avatar
Kenichi Handa committed
218 219

Lisp_Object
220
font_intern_prop (str, len, force_symbol)
Kenichi Handa's avatar
Kenichi Handa committed
221 222
     char *str;
     int len;
223
     int force_symbol;
Kenichi Handa's avatar
Kenichi Handa committed
224 225
{
  int i;
226
  Lisp_Object tem;
Kenichi Handa's avatar
Kenichi Handa committed
227 228 229 230
  Lisp_Object obarray;

  if (len == 1 && *str == '*')
    return Qnil;
231
  if (!force_symbol && len >=1 && isdigit (*str))
Kenichi Handa's avatar
Kenichi Handa committed
232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249
    {
      for (i = 1; i < len; i++)
	if (! isdigit (str[i]))
	  break;
      if (i == len)
	return make_number (atoi (str));
    }

  /* The following code is copied from the function intern (in lread.c).  */
  obarray = Vobarray;
  if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0)
    obarray = check_obarray (obarray);
  tem = oblookup (obarray, str, len, len);
  if (SYMBOLP (tem))
    return tem;
  return Fintern (make_unibyte_string (str, len), obarray);
}

250
/* Return a pixel size of font-spec SPEC on frame F.  */
251

252 253 254 255 256
static int
font_pixel_size (f, spec)
     FRAME_PTR f;
     Lisp_Object spec;
{
257
#ifdef HAVE_WINDOW_SYSTEM
258 259
  Lisp_Object size = AREF (spec, FONT_SIZE_INDEX);
  double point_size;
Kenichi Handa's avatar
Kenichi Handa committed
260
  int dpi, pixel_size;
261
  Lisp_Object val;
262

263 264 265
  if (INTEGERP (size))
    return XINT (size);
  if (NILP (size))
266
    return 0;
267
  font_assert (FLOATP (size));
268
  point_size = XFLOAT_DATA (size);
Kenichi Handa's avatar
Kenichi Handa committed
269 270
  val = AREF (spec, FONT_DPI_INDEX);
  if (INTEGERP (val))
271
    dpi = XINT (val);
272 273 274 275
  else
    dpi = f->resy;
  pixel_size = POINT_TO_PIXEL (point_size, dpi);
  return pixel_size;
276 277 278
#else
  return 1;
#endif
279 280
}

Kenichi Handa's avatar
Kenichi Handa committed
281

Kenichi Handa's avatar
Kenichi Handa committed
282 283 284 285 286 287
/* Return a value of PROP's VAL (symbol or integer) to be stored in a
   font vector.  If VAL is not valid (i.e. not registered in
   font_style_table), return -1 if NOERROR is zero, and return a
   proper index if NOERROR is nonzero.  In that case, register VAL in
   font_style_table if VAL is a symbol, and return a closest index if
   VAL is an integer.  */
Kenichi Handa's avatar
Kenichi Handa committed
288

Kenichi Handa's avatar
Kenichi Handa committed
289 290
int
font_style_to_value (prop, val, noerror)
Kenichi Handa's avatar
Kenichi Handa committed
291
     enum font_property_index prop;
Kenichi Handa's avatar
Kenichi Handa committed
292 293
     Lisp_Object val;
     int noerror;
Kenichi Handa's avatar
Kenichi Handa committed
294
{
Kenichi Handa's avatar
Kenichi Handa committed
295 296
  Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX);
  int len = ASIZE (table);
297
  int i, j;
Kenichi Handa's avatar
Kenichi Handa committed
298

Kenichi Handa's avatar
Kenichi Handa committed
299
  if (SYMBOLP (val))
Kenichi Handa's avatar
Kenichi Handa committed
300
    {
301
      unsigned char *s;
Kenichi Handa's avatar
Kenichi Handa committed
302 303 304 305
      Lisp_Object args[2], elt;

      /* At first try exact match.  */
      for (i = 0; i < len; i++)
306 307 308 309
	for (j = 1; j < ASIZE (AREF (table, i)); j++)
	  if (EQ (val, AREF (AREF (table, i), j)))
	    return ((XINT (AREF (AREF (table, i), 0)) << 8)
		    | (i << 4) | (j - 1));
Kenichi Handa's avatar
Kenichi Handa committed
310
      /* Try also with case-folding match.  */
311
      s = SDATA (SYMBOL_NAME (val));
Kenichi Handa's avatar
Kenichi Handa committed
312
      for (i = 0; i < len; i++)
313 314 315
	for (j = 1; j < ASIZE (AREF (table, i)); j++)
	  {
	    elt = AREF (AREF (table, i), j);
316
	    if (xstrcasecmp (s, SDATA (SYMBOL_NAME (elt))) == 0)
317 318 319
	      return ((XINT (AREF (AREF (table, i), 0)) << 8)
		      | (i << 4) | (j - 1));
	  }
Kenichi Handa's avatar
Kenichi Handa committed
320 321 322 323
      if (! noerror)
	return -1;
      if (len == 255)
	abort ();
324 325
      elt = Fmake_vector (make_number (2), make_number (255));
      ASET (elt, 1, val);
Kenichi Handa's avatar
Kenichi Handa committed
326
      args[0] = table;
327
      args[1] = Fmake_vector (make_number (1), elt);
Kenichi Handa's avatar
Kenichi Handa committed
328
      ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args));
329
      return (255 << 8) | (i << 4);
Kenichi Handa's avatar
Kenichi Handa committed
330
    }
Kenichi Handa's avatar
Kenichi Handa committed
331 332
  else
    {
333
      int i, last_n;
Kenichi Handa's avatar
Kenichi Handa committed
334
      int numeric = XINT (val);
Kenichi Handa's avatar
Kenichi Handa committed
335

336
      for (i = 0, last_n = -1; i < len; i++)
Kenichi Handa's avatar
Kenichi Handa committed
337
	{
338
	  int n = XINT (AREF (AREF (table, i), 0));
Kenichi Handa's avatar
Kenichi Handa committed
339

Kenichi Handa's avatar
Kenichi Handa committed
340
	  if (numeric == n)
341
	    return (n << 8) | (i << 4);
Kenichi Handa's avatar
Kenichi Handa committed
342 343 344 345
	  if (numeric < n)
	    {
	      if (! noerror)
		return -1;
346 347
	      return ((i == 0 || n - numeric < numeric - last_n)
		      ? (n << 8) | (i << 4): (last_n << 8 | ((i - 1) << 4)));
Kenichi Handa's avatar
Kenichi Handa committed
348 349 350 351 352
	    }
	  last_n = n;
	}
      if (! noerror)
	return -1;
353
      return ((last_n << 8) | ((i - 1) << 4));
Kenichi Handa's avatar
Kenichi Handa committed
354 355
    }
}
Kenichi Handa's avatar
Kenichi Handa committed
356 357

Lisp_Object
358
font_style_symbolic_from_value (prop, val, for_face)
Kenichi Handa's avatar
Kenichi Handa committed
359
     enum font_property_index prop;
360
     Lisp_Object val;
Kenichi Handa's avatar
Kenichi Handa committed
361
     int for_face;
Kenichi Handa's avatar
Kenichi Handa committed
362
{
363 364
  Lisp_Object table, elt;
  int i;
Kenichi Handa's avatar
Kenichi Handa committed
365

Kenichi Handa's avatar
Kenichi Handa committed
366 367 368
  if (NILP (val))
    return Qnil;
  table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX);
369 370 371 372
  i = XINT (val) & 0xFF;
  font_assert (((i >> 4) & 0xF) < ASIZE (table));
  elt = AREF (table, ((i >> 4) & 0xF));
  font_assert ((i & 0xF) + 1 < ASIZE (elt));
373 374 375 376 377 378 379 380 381 382 383
  return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1));  
}

Lisp_Object
font_style_symbolic (font, prop, for_face)
     Lisp_Object font;
     enum font_property_index prop;
     int for_face;
{
  Lisp_Object val = AREF (font, prop);
  return font_style_symbolic_from_value (prop, val, for_face);
Kenichi Handa's avatar
Kenichi Handa committed
384 385 386 387
}

extern Lisp_Object Vface_alternative_font_family_alist;

388 389
extern Lisp_Object find_font_encoding P_ ((Lisp_Object));

Kenichi Handa's avatar
Kenichi Handa committed
390

391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415
/* 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.  */

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;
}

416 417 418 419 420 421 422 423 424 425 426 427
/* Return encoding charset and repertory charset for REGISTRY in
   ENCODING and REPERTORY correspondingly.  If correct information for
   REGISTRY is available, return 0.  Otherwise return -1.  */

int
font_registry_charsets (registry, encoding, repertory)
     Lisp_Object registry;
     struct charset **encoding, **repertory;
{
  Lisp_Object val;
  int encoding_id, repertory_id;

Kenichi Handa's avatar
Kenichi Handa committed
428
  val = Fassoc_string (registry, font_charset_alist, Qt);
429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456
  if (! NILP (val))
    {
      val = XCDR (val);
      if (NILP (val))
	return -1;
      encoding_id = XINT (XCAR (val));
      repertory_id = XINT (XCDR (val));
    }
  else
    {
      val = find_font_encoding (SYMBOL_NAME (registry));
      if (SYMBOLP (val) && CHARSETP (val))
	{
	  encoding_id = repertory_id = XINT (CHARSET_SYMBOL_ID (val));
	}
      else if (CONSP (val))
	{
	  if (! CHARSETP (XCAR (val)))
	    goto invalid_entry;
	  encoding_id = XINT (CHARSET_SYMBOL_ID (XCAR (val)));
	  if (NILP (XCDR (val)))
	    repertory_id = -1;
	  else
	    {
	      if (! CHARSETP (XCDR (val)))
		goto invalid_entry;
	      repertory_id = XINT (CHARSET_SYMBOL_ID (XCDR (val)));
	    }
457
	}
458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476
      else
	goto invalid_entry;
      val = Fcons (make_number (encoding_id), make_number (repertory_id));
      font_charset_alist
	= nconc2 (font_charset_alist, Fcons (Fcons (registry, val), Qnil));
    }

  if (encoding)
    *encoding = CHARSET_FROM_ID (encoding_id);
  if (repertory)
    *repertory = repertory_id >= 0 ? CHARSET_FROM_ID (repertory_id) : NULL;
  return 0;

 invalid_entry:
  font_charset_alist
    = nconc2 (font_charset_alist, Fcons (Fcons (registry, Qnil), Qnil));
  return -1;
}

Kenichi Handa's avatar
Kenichi Handa committed
477

478 479 480
/* Font property value validaters.  See the comment of
   font_property_table for the meaning of the arguments.  */

Kenichi Handa's avatar
Kenichi Handa committed
481
static Lisp_Object font_prop_validate P_ ((int, Lisp_Object, Lisp_Object));
482 483 484 485
static Lisp_Object font_prop_validate_symbol P_ ((Lisp_Object, Lisp_Object));
static Lisp_Object font_prop_validate_style P_ ((Lisp_Object, Lisp_Object));
static Lisp_Object font_prop_validate_non_neg P_ ((Lisp_Object, Lisp_Object));
static Lisp_Object font_prop_validate_spacing P_ ((Lisp_Object, Lisp_Object));
Kenichi Handa's avatar
Kenichi Handa committed
486
static int get_font_prop_index P_ ((Lisp_Object));
Kenichi Handa's avatar
Kenichi Handa committed
487 488

static Lisp_Object
489
font_prop_validate_symbol (prop, val)
490
     Lisp_Object prop, val;
Kenichi Handa's avatar
Kenichi Handa committed
491 492
{
  if (STRINGP (val))
Kenichi Handa's avatar
Kenichi Handa committed
493 494
    val = Fintern (val, Qnil);
  if (! SYMBOLP (val))
Kenichi Handa's avatar
Kenichi Handa committed
495
    val = Qerror;
Kenichi Handa's avatar
Kenichi Handa committed
496 497
  else if (EQ (prop, QCregistry))
    val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil);
Kenichi Handa's avatar
Kenichi Handa committed
498 499 500
  return val;
}

Kenichi Handa's avatar
Kenichi Handa committed
501

Kenichi Handa's avatar
Kenichi Handa committed
502
static Lisp_Object
Kenichi Handa's avatar
Kenichi Handa committed
503 504
font_prop_validate_style (style, val)
     Lisp_Object style, val;
Kenichi Handa's avatar
Kenichi Handa committed
505
{
Kenichi Handa's avatar
Kenichi Handa committed
506 507 508 509 510
  enum font_property_index prop = (EQ (style, QCweight) ? FONT_WEIGHT_INDEX
				   : EQ (style, QCslant) ? FONT_SLANT_INDEX
				   : FONT_WIDTH_INDEX);
  int n;
  if (INTEGERP (val))
Kenichi Handa's avatar
Kenichi Handa committed
511
    {
Kenichi Handa's avatar
Kenichi Handa committed
512
      n = XINT (val);
513
      if (((n >> 4) & 0xF)
Kenichi Handa's avatar
Kenichi Handa committed
514
	  >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX)))
Kenichi Handa's avatar
Kenichi Handa committed
515 516 517
	val = Qerror;
      else
	{
518 519 520 521 522
	  Lisp_Object elt = AREF (AREF (font_style_table, prop - FONT_WEIGHT_INDEX), (n >> 4) & 0xF);

	  if ((n & 0xF) + 1 >= ASIZE (elt))
	    val = Qerror;
	  else if (XINT (AREF (elt, 0)) != (n >> 8))
Kenichi Handa's avatar
Kenichi Handa committed
523 524 525
	    val = Qerror;
	}
    }
Kenichi Handa's avatar
Kenichi Handa committed
526 527 528 529 530 531 532 533
  else if (SYMBOLP (val))
    {
      int n = font_style_to_value (prop, val, 0);

      val = n >= 0 ? make_number (n) : Qerror;
    }
  else
    val = Qerror;
Kenichi Handa's avatar
Kenichi Handa committed
534 535 536 537
  return val;
}

static Lisp_Object
538
font_prop_validate_non_neg (prop, val)
539
     Lisp_Object prop, val;
Kenichi Handa's avatar
Kenichi Handa committed
540 541 542 543 544 545
{
  return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0)
	  ? val : Qerror);
}

static Lisp_Object
546
font_prop_validate_spacing (prop, val)
547 548 549 550
     Lisp_Object prop, val;
{
  if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL))
    return val;
551 552 553 554 555 556 557 558
  if (SYMBOLP (val) && SBYTES (SYMBOL_NAME (val)) == 1)
    {
      char spacing = SDATA (SYMBOL_NAME (val))[0];

      if (spacing == 'c' || spacing == 'C')
	return make_number (FONT_SPACING_CHARCELL);
      if (spacing == 'm' || spacing == 'M')
	return make_number (FONT_SPACING_MONO);
559
      if (spacing == 'p' || spacing == 'P')
560 561 562 563
	return make_number (FONT_SPACING_PROPORTIONAL);
      if (spacing == 'd' || spacing == 'D')
	return make_number (FONT_SPACING_DUAL);
    }
564 565 566
  return Qerror;
}

567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601
static Lisp_Object
font_prop_validate_otf (prop, val)
     Lisp_Object prop, val;
{
  Lisp_Object tail, tmp;
  int i;

  /* VAL = (SCRIPT [ LANGSYS [ GSUB-FEATURES [ GPOS-FEATURES ]]])
     GSUB-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil
     GPOS-FEATURES = (FEATURE ... [ nil FEATURE ... ]) | nil  */
  if (! CONSP (val))
    return Qerror;
  if (! SYMBOLP (XCAR (val)))
    return Qerror;
  tail = XCDR (val);
  if (NILP (tail))
    return val;
  if (! CONSP (tail) || ! SYMBOLP (XCAR (val)))
    return Qerror;
  for (i = 0; i < 2; i++)
    {
      tail = XCDR (tail);
      if (NILP (tail))
	return val;
      if (! CONSP (tail))
	return Qerror;
      for (tmp = XCAR (tail); CONSP (tmp); tmp = XCDR (tmp))
	if (! SYMBOLP (XCAR (tmp)))
	  return Qerror;
      if (! NILP (tmp))
	return Qerror;
    }
  return val;
}

602 603
/* Structure of known font property keys and validater of the
   values.  */
Kenichi Handa's avatar
Kenichi Handa committed
604 605
struct
{
606
  /* Pointer to the key symbol.  */
Kenichi Handa's avatar
Kenichi Handa committed
607
  Lisp_Object *key;
608 609 610 611
  /* Function to validate PROP's value VAL, or NULL if any value is
     ok.  The value is VAL or its regularized value if VAL is valid,
     and Qerror if not.  */
  Lisp_Object (*validater) P_ ((Lisp_Object prop, Lisp_Object val));
612 613
} font_property_table[] =
  { { &QCtype, font_prop_validate_symbol },
Kenichi Handa's avatar
Kenichi Handa committed
614 615 616 617 618 619 620
    { &QCfoundry, font_prop_validate_symbol },
    { &QCfamily, font_prop_validate_symbol },
    { &QCadstyle, font_prop_validate_symbol },
    { &QCregistry, font_prop_validate_symbol },
    { &QCweight, font_prop_validate_style },
    { &QCslant, font_prop_validate_style },
    { &QCwidth, font_prop_validate_style },
621 622 623
    { &QCsize, font_prop_validate_non_neg },
    { &QCdpi, font_prop_validate_non_neg },
    { &QCspacing, font_prop_validate_spacing },
Kenichi Handa's avatar
Kenichi Handa committed
624 625 626 627 628 629
    { &QCavgwidth, font_prop_validate_non_neg },
    /* The order of the above entries must match with enum
       font_property_index.  */
    { &QClang, font_prop_validate_symbol },
    { &QCscript, font_prop_validate_symbol },
    { &QCotf, font_prop_validate_otf }
Kenichi Handa's avatar
Kenichi Handa committed
630 631
  };

632
/* Size (number of elements) of the above table.  */
633 634 635
#define FONT_PROPERTY_TABLE_SIZE \
  ((sizeof font_property_table) / (sizeof *font_property_table))

636
/* Return an index number of font property KEY or -1 if KEY is not an
Kenichi Handa's avatar
Kenichi Handa committed
637
   already known property.  */
638

639
static int
Kenichi Handa's avatar
Kenichi Handa committed
640
get_font_prop_index (key)
Kenichi Handa's avatar
Kenichi Handa committed
641 642
     Lisp_Object key;
{
Kenichi Handa's avatar
Kenichi Handa committed
643 644 645 646 647
  int i;

  for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++)
    if (EQ (key, *font_property_table[i].key))
      return i;
648
  return -1;
Kenichi Handa's avatar
Kenichi Handa committed
649 650
}

Kenichi Handa's avatar
Kenichi Handa committed
651 652 653
/* Validate the font property.  The property key is specified by the
   symbol PROP, or the index IDX (if PROP is nil).  If VAL is invalid,
   signal an error.  The value is VAL or the regularized one.  */
654

Kenichi Handa's avatar
Kenichi Handa committed
655
static Lisp_Object
Kenichi Handa's avatar
Kenichi Handa committed
656 657 658
font_prop_validate (idx, prop, val)
     int idx;
     Lisp_Object prop, val;
Kenichi Handa's avatar
Kenichi Handa committed
659
{
Kenichi Handa's avatar
Kenichi Handa committed
660
  Lisp_Object validated;
Kenichi Handa's avatar
Kenichi Handa committed
661

662 663
  if (NILP (val))
    return val;
Kenichi Handa's avatar
Kenichi Handa committed
664 665 666
  if (NILP (prop))
    prop = *font_property_table[idx].key;
  else
667
    {
Kenichi Handa's avatar
Kenichi Handa committed
668 669 670
      idx = get_font_prop_index (prop);
      if (idx < 0)
	return val;
671
    }
Kenichi Handa's avatar
Kenichi Handa committed
672 673 674 675
  validated = (font_property_table[idx].validater) (prop, val);
  if (EQ (validated, Qerror))
    signal_error ("invalid font property", Fcons (prop, val));
  return validated;
Kenichi Handa's avatar
Kenichi Handa committed
676
}
677

Kenichi Handa's avatar
Kenichi Handa committed
678 679 680

/* Store VAL as a value of extra font property PROP in FONT while
   keeping the sorting order.  Don't check the validity of VAL.  */
681

682
Lisp_Object
683
font_put_extra (font, prop, val)
684 685 686
     Lisp_Object font, prop, val;
{
  Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX);
687
  Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra));
688 689 690

  if (NILP (slot))
    {
Kenichi Handa's avatar
Kenichi Handa committed
691 692 693 694 695 696 697 698 699
      Lisp_Object prev = Qnil;

      while (CONSP (extra)
	     && NILP (Fstring_lessp (prop, XCAR (XCAR (extra)))))
	prev = extra, extra = XCDR (extra);
      if (NILP (prev))
	ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra));
      else
	XSETCDR (prev, Fcons (Fcons (prop, val), extra));
700
      return val;
701 702
    }
  XSETCDR (slot, val);
703
  return val;
704 705
}

Kenichi Handa's avatar
Kenichi Handa committed
706 707 708

/* Font name parser and unparser */

709 710 711
static int parse_matrix P_ ((char *));
static int font_expand_wildcards P_ ((Lisp_Object *, int));
static int font_parse_name P_ ((char *, Lisp_Object));
Kenichi Handa's avatar
Kenichi Handa committed
712

713
/* An enumerator for each field of an XLFD font name.  */
Kenichi Handa's avatar
Kenichi Handa committed
714 715 716 717 718 719 720 721
enum xlfd_field_index
{
  XLFD_FOUNDRY_INDEX,
  XLFD_FAMILY_INDEX,
  XLFD_WEIGHT_INDEX,
  XLFD_SLANT_INDEX,
  XLFD_SWIDTH_INDEX,
  XLFD_ADSTYLE_INDEX,
722 723
  XLFD_PIXEL_INDEX,
  XLFD_POINT_INDEX,
Kenichi Handa's avatar
Kenichi Handa committed
724 725 726 727 728 729 730 731 732
  XLFD_RESX_INDEX,
  XLFD_RESY_INDEX,
  XLFD_SPACING_INDEX,
  XLFD_AVGWIDTH_INDEX,
  XLFD_REGISTRY_INDEX,
  XLFD_ENCODING_INDEX,
  XLFD_LAST_INDEX
};

733
/* An enumerator for mask bit corresponding to each XLFD field.  */
734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752
enum xlfd_field_mask
{
  XLFD_FOUNDRY_MASK = 0x0001,
  XLFD_FAMILY_MASK = 0x0002,
  XLFD_WEIGHT_MASK = 0x0004,
  XLFD_SLANT_MASK = 0x0008,
  XLFD_SWIDTH_MASK = 0x0010,
  XLFD_ADSTYLE_MASK = 0x0020,
  XLFD_PIXEL_MASK = 0x0040,
  XLFD_POINT_MASK = 0x0080,
  XLFD_RESX_MASK = 0x0100,
  XLFD_RESY_MASK = 0x0200,
  XLFD_SPACING_MASK = 0x0400,
  XLFD_AVGWIDTH_MASK = 0x0800,
  XLFD_REGISTRY_MASK = 0x1000,
  XLFD_ENCODING_MASK = 0x2000
};


Kenichi Handa's avatar
Kenichi Handa committed
753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785
/* Parse P pointing the pixel/point size field of the form
   `[A B C D]' which specifies a transformation matrix:

	A  B  0
	C  D  0
	0  0  1

   by which all glyphs of the font are transformed.  The spec says
   that scalar value N for the pixel/point size is equivalent to:
   A = N * resx/resy, B = C = 0, D = N.

   Return the scalar value N if the form is valid.  Otherwise return
   -1.  */

static int
parse_matrix (p)
     char *p;
{
  double matrix[4];
  char *end;
  int i;

  for (i = 0, p++; i < 4 && *p && *p != ']'; i++)
    {
      if (*p == '~')
	matrix[i] = - strtod (p + 1, &end);
      else
	matrix[i] = strtod (p, &end);
      p = end;
    }
  return (i == 4 ? (int) matrix[3] : -1);
}

786 787 788 789
/* Expand a wildcard field in FIELD (the first N fields are filled) to
   multiple fields to fill in all 14 XLFD fields while restring a
   field position by its contents.  */

790
static int
791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807
font_expand_wildcards (field, n)
     Lisp_Object field[XLFD_LAST_INDEX];
     int n;
{
  /* Copy of FIELD.  */
  Lisp_Object tmp[XLFD_LAST_INDEX];
  /* Array of information about where this element can go.  Nth
     element is for Nth element of FIELD. */
  struct {
    /* Minimum possible field.  */
    int from;
    /* Maxinum possible field.  */
    int to;
    /* Bit mask of possible field.  Nth bit corresponds to Nth field.  */
    int mask;
  } range[XLFD_LAST_INDEX];
  int i, j;
808
  int range_from, range_to;
809 810 811 812 813 814
  unsigned range_mask;

#define XLFD_SYMBOL_MASK (XLFD_FOUNDRY_MASK | XLFD_FAMILY_MASK \
			  | XLFD_ADSTYLE_MASK  | XLFD_REGISTRY_MASK)
#define XLFD_NULL_MASK (XLFD_FOUNDRY_MASK | XLFD_ADSTYLE_MASK)
#define XLFD_LARGENUM_MASK (XLFD_POINT_MASK | XLFD_RESX_MASK | XLFD_RESY_MASK \
815
			    | XLFD_AVGWIDTH_MASK)
816 817 818 819 820 821 822 823
#define XLFD_REGENC_MASK (XLFD_REGISTRY_MASK | XLFD_ENCODING_MASK)

  /* Initialize RANGE_MASK for FIELD[0] which can be 0th to (14 - N)th
     field.  The value is shifted to left one bit by one in the
     following loop.  */
  for (i = 0, range_mask = 0; i <= 14 - n; i++)
    range_mask = (range_mask << 1) | 1;

824 825 826 827
  /* The triplet RANGE_FROM, RANGE_TO, and RANGE_MASK is a
     position-based retriction for FIELD[I].  */
  for (i = 0, range_from = 0, range_to = 14 - n; i < n;
       i++, range_from++, range_to++, range_mask <<= 1)
828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849
    {
      Lisp_Object val = field[i];

      tmp[i] = val;
      if (NILP (val))
	{
	  /* Wildcard.  */
	  range[i].from = range_from;
	  range[i].to = range_to;
	  range[i].mask = range_mask;
	}
      else
	{
	  /* The triplet FROM, TO, and MASK is a value-based
	     retriction for FIELD[I].  */
	  int from, to;
	  unsigned mask;

	  if (INTEGERP (val))
	    {
	      int numeric = XINT (val);

850 851 852
	      if (i + 1 == n)
		from = to = XLFD_ENCODING_INDEX,
		  mask = XLFD_ENCODING_MASK;
853 854 855
	      else if (numeric == 0)
		from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX,
		  mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK;
856 857 858
	      else if (numeric <= 48)
		from = to = XLFD_PIXEL_INDEX,
		  mask = XLFD_PIXEL_MASK;
859
	      else
860
		from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX,
861 862
		  mask = XLFD_LARGENUM_MASK;
	    }
Kenichi Handa's avatar
Kenichi Handa committed
863
	  else if (SBYTES (SYMBOL_NAME (val)) == 0)
864 865 866 867 868 869 870 871 872 873 874 875 876 877 878
	    from = XLFD_FOUNDRY_INDEX, to = XLFD_ADSTYLE_INDEX,
	      mask = XLFD_NULL_MASK;
	  else if (i == 0)
	    from = to = XLFD_FOUNDRY_INDEX, mask = XLFD_FOUNDRY_MASK;
	  else if (i + 1 == n)
	    {
	      Lisp_Object name = SYMBOL_NAME (val);

	      if (SDATA (name)[SBYTES (name) - 1] == '*')
		from = XLFD_REGISTRY_INDEX, to = XLFD_ENCODING_INDEX,
		  mask = XLFD_REGENC_MASK;
	      else
		from = to = XLFD_ENCODING_INDEX,
		  mask = XLFD_ENCODING_MASK;
	    }
879 880
	  else if (range_from <= XLFD_WEIGHT_INDEX
		   && range_to >= XLFD_WEIGHT_INDEX
Kenichi Handa's avatar
Kenichi Handa committed
881
		   && FONT_WEIGHT_NAME_NUMERIC (val) >= 0)
882
	    from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK;
883 884
	  else if (range_from <= XLFD_SLANT_INDEX
		   && range_to >= XLFD_SLANT_INDEX
Kenichi Handa's avatar
Kenichi Handa committed
885
		   && FONT_SLANT_NAME_NUMERIC (val) >= 0)
886
	    from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK;
887 888
	  else if (range_from <= XLFD_SWIDTH_INDEX
		   && range_to >= XLFD_SWIDTH_INDEX
Kenichi Handa's avatar
Kenichi Handa committed
889
		   && FONT_WIDTH_NAME_NUMERIC (val) >= 0)
890 891 892
	    from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK;
	  else
	    {
893
	      if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd))
894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916
		from = to = XLFD_SPACING_INDEX, mask = XLFD_SPACING_MASK;
	      else
		from = XLFD_FOUNDRY_INDEX, to = XLFD_ENCODING_INDEX,
		  mask = XLFD_SYMBOL_MASK;
	    }

	  /* Merge position-based and value-based restrictions.  */
	  mask &= range_mask;
	  while (from < range_from)
	    mask &= ~(1 << from++);
	  while (from < 14 && ! (mask & (1 << from)))
	    from++;
	  while (to > range_to)
	    mask &= ~(1 << to--);
	  while (to >= 0 && ! (mask & (1 << to)))
	    to--;
	  if (from > to)
	    return -1;
	  range[i].from = from;
	  range[i].to = to;
	  range[i].mask = mask;

	  if (from > range_from || to < range_to)
917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950
	    {
	      /* The range is narrowed by value-based restrictions.
		 Reflect it to the other fields.  */

	      /* Following fields should be after FROM.  */
	      range_from = from;
	      /* Preceding fields should be before TO.  */
	      for (j = i - 1, from--, to--; j >= 0; j--, from--, to--)
		{
		  /* Check FROM for non-wildcard field.  */
		  if (! NILP (tmp[j]) && range[j].from < from)
		    {
		      while (range[j].from < from)
			range[j].mask &= ~(1 << range[j].from++);
		      while (from < 14 && ! (range[j].mask & (1 << from)))
			from++;
		      range[j].from = from;
		    }
		  else
		    from = range[j].from;
		  if (range[j].to > to)
		    {
		      while (range[j].to > to)
			range[j].mask &= ~(1 << range[j].to--);
		      while (to >= 0 && ! (range[j].mask & (1 << to)))
			to--;
		      range[j].to = to;
		    }
		  else
		    to = range[j].to;
		  if (from > to)
		    return -1;
		}
	    }
951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976
	}
    }

  /* Decide all fileds from restrictions in RANGE.  */
  for (i = j = 0; i < n ; i++)
    {
      if (j < range[i].from)
	{
	  if (i == 0 || ! NILP (tmp[i - 1]))
	    /* None of TMP[X] corresponds to Jth field.  */
	    return -1;
	  for (; j < range[i].from; j++)
	    field[j] = Qnil;
	}
      field[j++] = tmp[i];
    }
  if (! NILP (tmp[n - 1]) && j < XLFD_REGISTRY_INDEX)
    return -1;
  for (; j < XLFD_LAST_INDEX; j++)
    field[j] = Qnil;
  if (INTEGERP (field[XLFD_ENCODING_INDEX]))
    field[XLFD_ENCODING_INDEX]
      = Fintern (Fnumber_to_string (field[XLFD_ENCODING_INDEX]), Qnil);
  return 0;
}

977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009

#ifdef ENABLE_CHECKING
/* Match a 14-field XLFD pattern against a full XLFD font name.  */
static int
font_match_xlfd (char *pattern, char *name)
{
  while (*pattern && *name)
    {
      if (*pattern == *name)
	pattern++;
      else if (*pattern == '*')
	if (*name == pattern[1])
	  pattern += 2;
	else
	  ;
      else
	return 0;
      name++;
    }
  return 1;
}

/* Make sure the font object matches the XLFD font name.  */
static int
font_check_xlfd_parse (Lisp_Object font, char *name)
{
  char name_check[256];
  font_unparse_xlfd (font, 0, name_check, 255);
  return font_match_xlfd (name_check, name);
}

#endif

Kenichi Handa's avatar
Kenichi Handa committed
1010

1011
/* Parse NAME (null terminated) as XLFD and store information in FONT
1012 1013 1014 1015 1016 1017 1018 1019
   (font-spec or font-entity).  Size property of FONT is set as
   follows:
	specified XLFD fields		FONT property
	---------------------		-------------
	PIXEL_SIZE			PIXEL_SIZE (Lisp integer)
	POINT_SIZE and RESY		calculated pixel size (Lisp integer)
	POINT_SIZE			POINT_SIZE/10 (Lisp float)

1020
   If NAME is successfully parsed, return 0.  Otherwise return -1.
1021

1022 1023
   FONT is usually a font-spec, but when this function is called from
   X font backend driver, it is a font-entity.  In that case, NAME is
Kenichi Handa's avatar
Kenichi Handa committed
1024
   a fully specified XLFD.  */
Kenichi Handa's avatar
Kenichi Handa committed
1025 1026

int
1027
font_parse_xlfd (name, font)
Kenichi Handa's avatar
Kenichi Handa committed
1028 1029 1030 1031
     char *name;
     Lisp_Object font;
{
  int len = strlen (name);
Kenichi Handa's avatar
Kenichi Handa committed
1032
  int i, j, n;
1033
  char *f[XLFD_LAST_INDEX + 1];
Kenichi Handa's avatar
Kenichi Handa committed
1034
  Lisp_Object val;
1035
  char *p;
Kenichi Handa's avatar
Kenichi Handa committed
1036 1037 1038 1039

  if (len > 255)
    /* Maximum XLFD name length is 255. */
    return -1;
1040 1041 1042 1043 1044 1045
  /* Accept "*-.." as a fully specified XLFD. */
  if (name[0] == '*' && name[1] == '-')
    i = 1, f[XLFD_FOUNDRY_INDEX] = name;
  else
    i = 0;
  for (p = name + i; *p; p++)
Kenichi Handa's avatar
Kenichi Handa committed
1046 1047 1048 1049 1050 1051 1052
    if (*p == '-')
      {
	f[i++] = p + 1;
	if (i == XLFD_LAST_INDEX)
	  break;
      }
  f[i] = name + len;
Kenichi Handa's avatar
Kenichi Handa committed
1053

1054 1055
#define INTERN_FIELD(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 0)
#define INTERN_FIELD_SYM(N) font_intern_prop (f[N], f[(N) + 1] - 1 - f[N], 1)
1056

1057
  if (i == XLFD_LAST_INDEX)
1058
    {
Kenichi Handa's avatar
Kenichi Handa committed
1059
      /* Fully specified XLFD.  */
1060 1061
      int pixel_size;

1062 1063
      ASET (font, FONT_FOUNDRY_INDEX, INTERN_FIELD_SYM (XLFD_FOUNDRY_INDEX));
      ASET (font, FONT_FAMILY_INDEX, INTERN_FIELD_SYM (XLFD_FAMILY_INDEX));
Kenichi Handa's avatar
Kenichi Handa committed
1064 1065
      for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX;
	   i <= XLFD_SWIDTH_INDEX; i++, j++)
1066
	{
1067
	  val = INTERN_FIELD_SYM (i);
1068
	  if (! NILP (val))
1069
	    {
1070
	      if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0)
Kenichi Handa's avatar
Kenichi Handa committed
1071 1072
		return -1;
	      ASET (font, j, make_number (n));
1073 1074
	    }
	}
1075
      ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX));
Kenichi Handa's avatar
Kenichi Handa committed
1076 1077 1078 1079 1080
      if (strcmp (f[XLFD_REGISTRY_INDEX], "*-*") == 0)
	ASET (font, FONT_REGISTRY_INDEX, Qnil);
      else
	ASET (font, FONT_REGISTRY_INDEX,
	      font_intern_prop (f[XLFD_REGISTRY_INDEX],
1081 1082
				f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX],
				1));
1083 1084
      p = f[XLFD_PIXEL_INDEX];
      if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0)
1085
	ASET (font, FONT_SIZE_INDEX, make_number (pixel_size));
1086 1087
      else
	{
Kenichi Handa's avatar
Kenichi Handa committed
1088 1089
	  val = INTERN_FIELD (XLFD_PIXEL_INDEX);
	  if (INTEGERP (val))
1090 1091 1092 1093 1094
	    ASET (font, FONT_SIZE_INDEX, val);
	  else
	    {
	      double point_size = -1;

1095
	      font_assert (FONT_SPEC_P (font));
1096 1097 1098 1099 1100 1101 1102
	      p = f[XLFD_POINT_INDEX];
	      if (*p == '[')
		point_size = parse_matrix (p);
	      else if (isdigit (*p))
		point_size = atoi (p), point_size /= 10;
	      if (point_size >= 0)
		ASET (font, FONT_SIZE_INDEX, make_float (point_size));
1103 1104
	    }
	}
1105

Kenichi Handa's avatar
Kenichi Handa committed
1106 1107 1108
      ASET (font, FONT_DPI_INDEX, INTERN_FIELD (XLFD_RESY_INDEX));
      val = INTERN_FIELD (XLFD_SPACING_INDEX);
      if (! NILP (val))
1109
	{
Kenichi Handa's avatar
Kenichi Handa committed
1110 1111 1112 1113
	  val = font_prop_validate_spacing (QCspacing, val);
	  if (! INTEGERP (val))
	    return -1;
	  ASET (font, FONT_SPACING_INDEX, val);
1114 1115 1116 1117
	}
      p = f[XLFD_AVGWIDTH_INDEX];
      if (*p == '~')
	p++;
Kenichi Handa's avatar
Kenichi Handa committed
1118
      ASET (font, FONT_AVGWIDTH_INDEX,
1119
	    font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 1));
1120 1121
    }
  else
Kenichi Handa's avatar
Kenichi Handa committed
1122
    {
1123
      int wild_card_found = 0;
1124
      Lisp_Object prop[XLFD_LAST_INDEX];
1125

Kenichi Handa's avatar
Kenichi Handa committed
1126 1127
      if (FONT_ENTITY_P (font))
	return -1;
1128
      for (j = 0; j < i; j++)
1129
	{
1130
	  if (*f[j] == '*')