font.c 148 KB
Newer Older
Kenichi Handa's avatar
Kenichi Handa committed
1
/* font.c -- "Font" primitives.
Glenn Morris's avatar
Glenn Morris committed
2 3 4 5 6

Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
Copyright (C) 2006, 2007, 2008, 2009, 2010
  National Institute of Advanced Industrial Science and Technology (AIST)
  Registration Number H13PRO009
Kenichi Handa's avatar
Kenichi Handa committed
7 8 9

This file is part of GNU Emacs.

10
GNU Emacs is free software: you can redistribute it and/or modify
Kenichi Handa's avatar
Kenichi Handa committed
11
it under the terms of the GNU General Public License as published by
12 13
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Kenichi Handa's avatar
Kenichi Handa committed
14 15 16 17 18 19 20

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
21
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
Kenichi Handa's avatar
Kenichi Handa committed
22 23 24 25

#include <config.h>
#include <stdio.h>
#include <ctype.h>
26
#include <setjmp.h>
Kenichi Handa's avatar
Kenichi Handa committed
27 28 29 30

#include "lisp.h"
#include "buffer.h"
#include "frame.h"
Kenichi Handa's avatar
Kenichi Handa committed
31
#include "window.h"
Kenichi Handa's avatar
Kenichi Handa committed
32 33 34 35 36 37 38
#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
39 40 41 42 43 44 45 46
#ifdef HAVE_X_WINDOWS
#include "xterm.h"
#endif /* HAVE_X_WINDOWS */

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

47 48 49 50
#ifdef HAVE_NS
#include "nsterm.h"
#endif /* HAVE_NS */

Kenichi Handa's avatar
Kenichi Handa committed
51 52
Lisp_Object Qopentype;

Kenichi Handa's avatar
Kenichi Handa committed
53
/* Important character set strings.  */
Kenichi Handa's avatar
Kenichi Handa committed
54
Lisp_Object Qascii_0, Qiso8859_1, Qiso10646_1, Qunicode_bmp, Qunicode_sip;
55

56 57
#define DEFAULT_ENCODING Qiso8859_1

Kenichi Handa's avatar
Kenichi Handa committed
58 59 60
/* Unicode category `Cf'.  */
static Lisp_Object QCf;

Kenichi Handa's avatar
Kenichi Handa committed
61 62
/* 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
63
static Lisp_Object null_vector;
Kenichi Handa's avatar
Kenichi Handa committed
64

65 66 67
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
68 69
static Lisp_Object font_style_table;

70 71 72 73 74 75 76 77
/* 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.  */
78
  const char *names[5];
79 80 81 82 83
};

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

84
static const struct table_entry weight_table[] =
85 86 87 88 89 90
{
  { 0, { "thin" }},
  { 20, { "ultra-light", "ultralight" }},
  { 40, { "extra-light", "extralight" }},
  { 50, { "light" }},
  { 75, { "semi-light", "semilight", "demilight", "book" }},
91
  { 100, { "normal", "medium", "regular", "unspecified" }},
92 93 94 95 96 97 98 99 100
  { 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.  */

101
static const struct table_entry slant_table[] =
102 103 104
{
  { 0, { "reverse-oblique", "ro" }},
  { 10, { "reverse-italic", "ri" }},
105
  { 100, { "normal", "r", "unspecified" }},
106 107 108 109 110 111 112
  { 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.  */

113
static const struct table_entry width_table[] =
114 115 116 117 118
{
  { 50, { "ultra-condensed", "ultracondensed" }},
  { 63, { "extra-condensed", "extracondensed" }},
  { 75, { "condensed", "compressed", "narrow" }},
  { 87, { "semi-condensed", "semicondensed", "demicondensed" }},
119
  { 100, { "normal", "medium", "regular", "unspecified" }},
120 121 122 123 124 125
  { 113, { "semi-expanded", "semiexpanded", "demiexpanded" }},
  { 125, { "expanded" }},
  { 150, { "extra-expanded", "extraexpanded" }},
  { 200, { "ultra-expanded", "ultraexpanded", "wide" }}
};

Kenichi Handa's avatar
Kenichi Handa committed
126
Lisp_Object QCfoundry, QCadstyle, QCregistry;
Kenichi Handa's avatar
Kenichi Handa committed
127
/* Symbols representing keys of font extra info.  */
Kenichi Handa's avatar
Kenichi Handa committed
128 129
Lisp_Object QCspacing, QCdpi, QCscalable, QCotf, QClang, QCscript, QCavgwidth;
Lisp_Object QCantialias, QCfont_entity, QCfc_unknown_spec;
130 131
/* Symbols representing values of font spacing property.  */
Lisp_Object Qc, Qm, Qp, Qd;
132 133 134
/* Special ADSTYLE properties to avoid fonts used for Latin
   characters; used in xfont.c and ftfont.c.  */
Lisp_Object Qja, Qko;
Kenichi Handa's avatar
Kenichi Handa committed
135

136 137
Lisp_Object QCuser_spec;

138 139
Lisp_Object Vfont_encoding_alist;

140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
/* 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;

158 159
/* 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
160 161 162
   here.  */
static struct font_driver_list *font_driver_list;

Kenichi Handa's avatar
Kenichi Handa committed
163 164 165 166 167


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

Lisp_Object
168
font_make_spec (void)
Kenichi Handa's avatar
Kenichi Handa committed
169 170 171 172 173 174 175 176 177 178 179
{
  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
180
font_make_entity (void)
Kenichi Handa's avatar
Kenichi Handa committed
181 182 183 184 185 186 187 188 189 190
{
  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;
}

191 192 193
/* Create a font-object whose structure size is SIZE.  If ENTITY is
   not nil, copy properties from ENTITY to the font-object.  If
   PIXELSIZE is positive, set the `size' property to PIXELSIZE.  */
Kenichi Handa's avatar
Kenichi Handa committed
194
Lisp_Object
195
font_make_object (int size, Lisp_Object entity, int pixelsize)
Kenichi Handa's avatar
Kenichi Handa committed
196 197 198 199
{
  Lisp_Object font_object;
  struct font *font
    = (struct font *) allocate_pseudovector (size, FONT_OBJECT_MAX, PVEC_FONT);
200 201
  int i;

Kenichi Handa's avatar
Kenichi Handa committed
202 203
  XSETFONT (font_object, font);

204 205 206 207 208 209
  if (! NILP (entity))
    {
      for (i = 1; i < FONT_SPEC_MAX; i++)
	font->props[i] = AREF (entity, i);
      if (! NILP (AREF (entity, FONT_EXTRA_INDEX)))
	font->props[FONT_EXTRA_INDEX]
210
	  = Fcopy_alist (AREF (entity, FONT_EXTRA_INDEX));
211 212 213
    }
  if (size > 0)
    font->props[FONT_SIZE_INDEX] = make_number (pixelsize);
Kenichi Handa's avatar
Kenichi Handa committed
214 215 216 217 218
  return font_object;
}



219 220 221 222
static int font_pixel_size (FRAME_PTR f, Lisp_Object);
static Lisp_Object font_open_entity (FRAME_PTR, Lisp_Object, int);
static Lisp_Object font_matching_entity (FRAME_PTR, Lisp_Object *,
                                         Lisp_Object);
Kenichi Handa's avatar
Kenichi Handa committed
223 224 225 226

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

Kenichi Handa's avatar
Kenichi Handa committed
227 228 229

/* Return a Lispy value of a font property value at STR and LEN bytes.
   If STR is "*", it returns nil.
230 231 232
   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
233 234

Lisp_Object
235
font_intern_prop (const char *str, int len, int force_symbol)
Kenichi Handa's avatar
Kenichi Handa committed
236 237
{
  int i;
238
  Lisp_Object tem;
Kenichi Handa's avatar
Kenichi Handa committed
239
  Lisp_Object obarray;
240
  EMACS_INT nbytes, nchars;
Kenichi Handa's avatar
Kenichi Handa committed
241 242 243

  if (len == 1 && *str == '*')
    return Qnil;
244
  if (!force_symbol && len >=1 && isdigit (*str))
Kenichi Handa's avatar
Kenichi Handa committed
245 246 247 248 249 250 251 252
    {
      for (i = 1; i < len; i++)
	if (! isdigit (str[i]))
	  break;
      if (i == len)
	return make_number (atoi (str));
    }

253 254
  /* The following code is copied from the function intern (in
     lread.c), and modified to suite our purpose.  */
Kenichi Handa's avatar
Kenichi Handa committed
255 256 257
  obarray = Vobarray;
  if (!VECTORP (obarray) || XVECTOR (obarray)->size == 0)
    obarray = check_obarray (obarray);
258
  parse_str_as_multibyte ((unsigned char *) str, len, &nchars, &nbytes);
259 260 261 262 263 264
  if (len == nchars || len != nbytes)
    /* CONTENTS contains no multibyte sequences or contains an invalid
       multibyte sequence.  We'll make a unibyte string.  */
    tem = oblookup (obarray, str, len, len);
  else
    tem = oblookup (obarray, str, nchars, len);
Kenichi Handa's avatar
Kenichi Handa committed
265 266
  if (SYMBOLP (tem))
    return tem;
267 268 269 270 271
  if (len == nchars || len != nbytes)
    tem = make_unibyte_string (str, len);
  else
    tem = make_multibyte_string (str, nchars, len);
  return Fintern (tem, obarray);
Kenichi Handa's avatar
Kenichi Handa committed
272 273
}

274
/* Return a pixel size of font-spec SPEC on frame F.  */
275

276
static int
277
font_pixel_size (FRAME_PTR f, Lisp_Object spec)
278
{
279
#ifdef HAVE_WINDOW_SYSTEM
280 281
  Lisp_Object size = AREF (spec, FONT_SIZE_INDEX);
  double point_size;
Kenichi Handa's avatar
Kenichi Handa committed
282
  int dpi, pixel_size;
283
  Lisp_Object val;
284

285 286 287
  if (INTEGERP (size))
    return XINT (size);
  if (NILP (size))
288
    return 0;
289
  font_assert (FLOATP (size));
290
  point_size = XFLOAT_DATA (size);
Kenichi Handa's avatar
Kenichi Handa committed
291 292
  val = AREF (spec, FONT_DPI_INDEX);
  if (INTEGERP (val))
293
    dpi = XINT (val);
294 295 296 297
  else
    dpi = f->resy;
  pixel_size = POINT_TO_PIXEL (point_size, dpi);
  return pixel_size;
298 299 300
#else
  return 1;
#endif
301 302
}

Kenichi Handa's avatar
Kenichi Handa committed
303

Kenichi Handa's avatar
Kenichi Handa committed
304 305 306 307 308 309
/* 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
310

Kenichi Handa's avatar
Kenichi Handa committed
311
int
312
font_style_to_value (enum font_property_index prop, Lisp_Object val, int noerror)
Kenichi Handa's avatar
Kenichi Handa committed
313
{
Kenichi Handa's avatar
Kenichi Handa committed
314 315
  Lisp_Object table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX);
  int len = ASIZE (table);
316
  int i, j;
Kenichi Handa's avatar
Kenichi Handa committed
317

Kenichi Handa's avatar
Kenichi Handa committed
318
  if (SYMBOLP (val))
Kenichi Handa's avatar
Kenichi Handa committed
319
    {
320
      unsigned char *s;
Kenichi Handa's avatar
Kenichi Handa committed
321 322 323 324
      Lisp_Object args[2], elt;

      /* At first try exact match.  */
      for (i = 0; i < len; i++)
325 326 327 328
	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
329
      /* Try also with case-folding match.  */
330
      s = SDATA (SYMBOL_NAME (val));
Kenichi Handa's avatar
Kenichi Handa committed
331
      for (i = 0; i < len; i++)
332 333 334
	for (j = 1; j < ASIZE (AREF (table, i)); j++)
	  {
	    elt = AREF (AREF (table, i), j);
335
	    if (xstrcasecmp (s, SDATA (SYMBOL_NAME (elt))) == 0)
336 337 338
	      return ((XINT (AREF (AREF (table, i), 0)) << 8)
		      | (i << 4) | (j - 1));
	  }
Kenichi Handa's avatar
Kenichi Handa committed
339 340 341 342
      if (! noerror)
	return -1;
      if (len == 255)
	abort ();
343
      elt = Fmake_vector (make_number (2), make_number (100));
344
      ASET (elt, 1, val);
Kenichi Handa's avatar
Kenichi Handa committed
345
      args[0] = table;
346
      args[1] = Fmake_vector (make_number (1), elt);
Kenichi Handa's avatar
Kenichi Handa committed
347
      ASET (font_style_table, prop - FONT_WEIGHT_INDEX, Fvconcat (2, args));
348
      return (100 << 8) | (i << 4);
Kenichi Handa's avatar
Kenichi Handa committed
349
    }
Kenichi Handa's avatar
Kenichi Handa committed
350 351
  else
    {
352
      int i, last_n;
Kenichi Handa's avatar
Kenichi Handa committed
353
      int numeric = XINT (val);
Kenichi Handa's avatar
Kenichi Handa committed
354

355
      for (i = 0, last_n = -1; i < len; i++)
Kenichi Handa's avatar
Kenichi Handa committed
356
	{
357
	  int n = XINT (AREF (AREF (table, i), 0));
Kenichi Handa's avatar
Kenichi Handa committed
358

Kenichi Handa's avatar
Kenichi Handa committed
359
	  if (numeric == n)
360
	    return (n << 8) | (i << 4);
Kenichi Handa's avatar
Kenichi Handa committed
361 362 363 364
	  if (numeric < n)
	    {
	      if (! noerror)
		return -1;
365 366
	      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
367 368 369 370 371
	    }
	  last_n = n;
	}
      if (! noerror)
	return -1;
372
      return ((last_n << 8) | ((i - 1) << 4));
Kenichi Handa's avatar
Kenichi Handa committed
373 374
    }
}
Kenichi Handa's avatar
Kenichi Handa committed
375 376

Lisp_Object
377
font_style_symbolic (Lisp_Object font, enum font_property_index prop, int for_face)
Kenichi Handa's avatar
Kenichi Handa committed
378
{
379
  Lisp_Object val = AREF (font, prop);
380 381
  Lisp_Object table, elt;
  int i;
Kenichi Handa's avatar
Kenichi Handa committed
382

Kenichi Handa's avatar
Kenichi Handa committed
383 384 385
  if (NILP (val))
    return Qnil;
  table = AREF (font_style_table, prop - FONT_WEIGHT_INDEX);
386 387 388 389
  i = XINT (val) & 0xFF;
  font_assert (((i >> 4) & 0xF) < ASIZE (table));
  elt = AREF (table, ((i >> 4) & 0xF));
  font_assert ((i & 0xF) + 1 < ASIZE (elt));
390
  return (for_face ? AREF (elt, 1) : AREF (elt, (i & 0xF) + 1));
391 392
}

393 394 395 396 397
/* 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
398
find_font_encoding (Lisp_Object fontname)
399 400 401 402 403 404 405 406 407 408 409 410 411 412
{
  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));
    }
413
  return Qnil;
414 415
}

416 417 418 419 420
/* 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
421
font_registry_charsets (Lisp_Object registry, struct charset **encoding, struct charset **repertory)
422 423 424 425
{
  Lisp_Object val;
  int encoding_id, repertory_id;

Kenichi Handa's avatar
Kenichi Handa committed
426
  val = Fassoc_string (registry, font_charset_alist, Qt);
427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454
  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)));
	    }
455
	}
456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474
      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
475

476 477 478
/* Font property value validaters.  See the comment of
   font_property_table for the meaning of the arguments.  */

479 480 481 482 483 484
static Lisp_Object font_prop_validate (int, Lisp_Object, Lisp_Object);
static Lisp_Object font_prop_validate_symbol (Lisp_Object, Lisp_Object);
static Lisp_Object font_prop_validate_style (Lisp_Object, Lisp_Object);
static Lisp_Object font_prop_validate_non_neg (Lisp_Object, Lisp_Object);
static Lisp_Object font_prop_validate_spacing (Lisp_Object, Lisp_Object);
static int get_font_prop_index (Lisp_Object);
Kenichi Handa's avatar
Kenichi Handa committed
485 486

static Lisp_Object
487
font_prop_validate_symbol (Lisp_Object prop, Lisp_Object val)
Kenichi Handa's avatar
Kenichi Handa committed
488 489
{
  if (STRINGP (val))
Kenichi Handa's avatar
Kenichi Handa committed
490 491
    val = Fintern (val, Qnil);
  if (! SYMBOLP (val))
Kenichi Handa's avatar
Kenichi Handa committed
492
    val = Qerror;
Kenichi Handa's avatar
Kenichi Handa committed
493 494
  else if (EQ (prop, QCregistry))
    val = Fintern (Fdowncase (SYMBOL_NAME (val)), Qnil);
Kenichi Handa's avatar
Kenichi Handa committed
495 496 497
  return val;
}

Kenichi Handa's avatar
Kenichi Handa committed
498

Kenichi Handa's avatar
Kenichi Handa committed
499
static Lisp_Object
500
font_prop_validate_style (Lisp_Object style, Lisp_Object val)
Kenichi Handa's avatar
Kenichi Handa committed
501
{
Kenichi Handa's avatar
Kenichi Handa committed
502 503 504 505 506
  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
507
    {
Kenichi Handa's avatar
Kenichi Handa committed
508
      n = XINT (val);
509
      if (((n >> 4) & 0xF)
Kenichi Handa's avatar
Kenichi Handa committed
510
	  >= ASIZE (AREF (font_style_table, prop - FONT_WEIGHT_INDEX)))
Kenichi Handa's avatar
Kenichi Handa committed
511 512 513
	val = Qerror;
      else
	{
514 515 516 517 518
	  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
519 520 521
	    val = Qerror;
	}
    }
Kenichi Handa's avatar
Kenichi Handa committed
522 523 524 525 526 527 528 529
  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
530 531 532 533
  return val;
}

static Lisp_Object
534
font_prop_validate_non_neg (Lisp_Object prop, Lisp_Object val)
Kenichi Handa's avatar
Kenichi Handa committed
535 536 537 538 539 540
{
  return (NATNUMP (val) || (FLOATP (val) && XFLOAT_DATA (val) >= 0)
	  ? val : Qerror);
}

static Lisp_Object
541
font_prop_validate_spacing (Lisp_Object prop, Lisp_Object val)
542 543 544
{
  if (NILP (val) || (NATNUMP (val) && XINT (val) <= FONT_SPACING_CHARCELL))
    return val;
545 546 547 548 549 550 551 552
  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);
553
      if (spacing == 'p' || spacing == 'P')
554 555 556 557
	return make_number (FONT_SPACING_PROPORTIONAL);
      if (spacing == 'd' || spacing == 'D')
	return make_number (FONT_SPACING_DUAL);
    }
558 559 560
  return Qerror;
}

561
static Lisp_Object
562
font_prop_validate_otf (Lisp_Object prop, Lisp_Object val)
563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594
{
  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;
}

595 596
/* Structure of known font property keys and validater of the
   values.  */
597
static const struct
Kenichi Handa's avatar
Kenichi Handa committed
598
{
599
  /* Pointer to the key symbol.  */
Kenichi Handa's avatar
Kenichi Handa committed
600
  Lisp_Object *key;
601 602 603
  /* 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.  */
604
  Lisp_Object (*validater) (Lisp_Object prop, Lisp_Object val);
605 606
} font_property_table[] =
  { { &QCtype, font_prop_validate_symbol },
Kenichi Handa's avatar
Kenichi Handa committed
607 608 609 610 611 612 613
    { &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 },
614 615 616
    { &QCsize, font_prop_validate_non_neg },
    { &QCdpi, font_prop_validate_non_neg },
    { &QCspacing, font_prop_validate_spacing },
Kenichi Handa's avatar
Kenichi Handa committed
617 618 619 620 621 622
    { &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
623 624
  };

625
/* Size (number of elements) of the above table.  */
626 627 628
#define FONT_PROPERTY_TABLE_SIZE \
  ((sizeof font_property_table) / (sizeof *font_property_table))

629
/* Return an index number of font property KEY or -1 if KEY is not an
Kenichi Handa's avatar
Kenichi Handa committed
630
   already known property.  */
631

632
static int
633
get_font_prop_index (Lisp_Object key)
Kenichi Handa's avatar
Kenichi Handa committed
634
{
Kenichi Handa's avatar
Kenichi Handa committed
635 636 637 638 639
  int i;

  for (i = 0; i < FONT_PROPERTY_TABLE_SIZE; i++)
    if (EQ (key, *font_property_table[i].key))
      return i;
640
  return -1;
Kenichi Handa's avatar
Kenichi Handa committed
641 642
}

Kenichi Handa's avatar
Kenichi Handa committed
643 644 645
/* 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.  */
646

Kenichi Handa's avatar
Kenichi Handa committed
647
static Lisp_Object
648
font_prop_validate (int idx, Lisp_Object prop, Lisp_Object val)
Kenichi Handa's avatar
Kenichi Handa committed
649
{
Kenichi Handa's avatar
Kenichi Handa committed
650
  Lisp_Object validated;
Kenichi Handa's avatar
Kenichi Handa committed
651

652 653
  if (NILP (val))
    return val;
Kenichi Handa's avatar
Kenichi Handa committed
654 655 656
  if (NILP (prop))
    prop = *font_property_table[idx].key;
  else
657
    {
Kenichi Handa's avatar
Kenichi Handa committed
658 659 660
      idx = get_font_prop_index (prop);
      if (idx < 0)
	return val;
661
    }
Kenichi Handa's avatar
Kenichi Handa committed
662 663 664 665
  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
666
}
667

Kenichi Handa's avatar
Kenichi Handa committed
668 669 670

/* Store VAL as a value of extra font property PROP in FONT while
   keeping the sorting order.  Don't check the validity of VAL.  */
671

672
Lisp_Object
673
font_put_extra (Lisp_Object font, Lisp_Object prop, Lisp_Object val)
674 675
{
  Lisp_Object extra = AREF (font, FONT_EXTRA_INDEX);
676
  Lisp_Object slot = (NILP (extra) ? Qnil : assq_no_quit (prop, extra));
677 678 679

  if (NILP (slot))
    {
Kenichi Handa's avatar
Kenichi Handa committed
680 681 682 683 684
      Lisp_Object prev = Qnil;

      while (CONSP (extra)
	     && NILP (Fstring_lessp (prop, XCAR (XCAR (extra)))))
	prev = extra, extra = XCDR (extra);
685

686
      if (NILP (prev))
687
        ASET (font, FONT_EXTRA_INDEX, Fcons (Fcons (prop, val), extra));
688
      else
689
        XSETCDR (prev, Fcons (Fcons (prop, val), extra));
690

691
      return val;
692 693
    }
  XSETCDR (slot, val);
694 695
  if (NILP (val))
    ASET (font, FONT_EXTRA_INDEX, Fdelq (slot, extra));
696
  return val;
697 698
}

Kenichi Handa's avatar
Kenichi Handa committed
699 700 701

/* Font name parser and unparser */

702
static int parse_matrix (const char *);
703
static int font_expand_wildcards (Lisp_Object *, int);
Dan Nicolaescu's avatar
Dan Nicolaescu committed
704
static int font_parse_name (char *, Lisp_Object);
Kenichi Handa's avatar
Kenichi Handa committed
705

706
/* An enumerator for each field of an XLFD font name.  */
Kenichi Handa's avatar
Kenichi Handa committed
707 708 709 710 711 712 713 714
enum xlfd_field_index
{
  XLFD_FOUNDRY_INDEX,
  XLFD_FAMILY_INDEX,
  XLFD_WEIGHT_INDEX,
  XLFD_SLANT_INDEX,
  XLFD_SWIDTH_INDEX,
  XLFD_ADSTYLE_INDEX,
715 716
  XLFD_PIXEL_INDEX,
  XLFD_POINT_INDEX,
Kenichi Handa's avatar
Kenichi Handa committed
717 718 719 720 721 722 723 724 725
  XLFD_RESX_INDEX,
  XLFD_RESY_INDEX,
  XLFD_SPACING_INDEX,
  XLFD_AVGWIDTH_INDEX,
  XLFD_REGISTRY_INDEX,
  XLFD_ENCODING_INDEX,
  XLFD_LAST_INDEX
};

726
/* An enumerator for mask bit corresponding to each XLFD field.  */
727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745
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
746 747 748 749 750 751 752 753 754 755 756 757 758 759 760
/* 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
761
parse_matrix (const char *p)
Kenichi Handa's avatar
Kenichi Handa committed
762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777
{
  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);
}

778 779 780 781
/* 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.  */

782
static int
783
font_expand_wildcards (Lisp_Object *field, int n)
784 785 786 787 788 789 790 791 792 793 794 795 796 797
{
  /* 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;
798
  int range_from, range_to;
799 800 801 802 803 804
  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 \
805
			    | XLFD_AVGWIDTH_MASK)
806 807 808 809 810 811 812 813
#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;

814 815 816 817
  /* 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)
818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839
    {
      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);

840 841 842
	      if (i + 1 == n)
		from = to = XLFD_ENCODING_INDEX,
		  mask = XLFD_ENCODING_MASK;
843 844 845
	      else if (numeric == 0)
		from = XLFD_PIXEL_INDEX, to = XLFD_AVGWIDTH_INDEX,
		  mask = XLFD_PIXEL_MASK | XLFD_LARGENUM_MASK;
846 847 848
	      else if (numeric <= 48)
		from = to = XLFD_PIXEL_INDEX,
		  mask = XLFD_PIXEL_MASK;
849
	      else
850
		from = XLFD_POINT_INDEX, to = XLFD_AVGWIDTH_INDEX,
851 852
		  mask = XLFD_LARGENUM_MASK;
	    }
Kenichi Handa's avatar
Kenichi Handa committed
853
	  else if (SBYTES (SYMBOL_NAME (val)) == 0)
854 855 856 857 858 859 860 861 862 863 864 865 866 867 868
	    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;
	    }
869 870
	  else if (range_from <= XLFD_WEIGHT_INDEX
		   && range_to >= XLFD_WEIGHT_INDEX
Kenichi Handa's avatar
Kenichi Handa committed
871
		   && FONT_WEIGHT_NAME_NUMERIC (val) >= 0)
872
	    from = to = XLFD_WEIGHT_INDEX, mask = XLFD_WEIGHT_MASK;
873 874
	  else if (range_from <= XLFD_SLANT_INDEX
		   && range_to >= XLFD_SLANT_INDEX
Kenichi Handa's avatar
Kenichi Handa committed
875
		   && FONT_SLANT_NAME_NUMERIC (val) >= 0)
876
	    from = to = XLFD_SLANT_INDEX, mask = XLFD_SLANT_MASK;
877 878
	  else if (range_from <= XLFD_SWIDTH_INDEX
		   && range_to >= XLFD_SWIDTH_INDEX
Kenichi Handa's avatar
Kenichi Handa committed
879
		   && FONT_WIDTH_NAME_NUMERIC (val) >= 0)
880 881 882
	    from = to = XLFD_SWIDTH_INDEX, mask = XLFD_SWIDTH_MASK;
	  else
	    {
883
	      if (EQ (val, Qc) || EQ (val, Qm) || EQ (val, Qp) || EQ (val, Qd))
884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906
		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)
907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940
	    {
	      /* 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;
		}
	    }
941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966
	}
    }

  /* 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;
}

967

968
/* Parse NAME (null terminated) as XLFD and store information in FONT
969 970 971 972 973 974 975 976
   (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)

977
   If NAME is successfully parsed, return 0.  Otherwise return -1.
978

979 980
   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
981
   a fully specified XLFD.  */
Kenichi Handa's avatar
Kenichi Handa committed
982 983

int
Dan Nicolaescu's avatar
Dan Nicolaescu committed
984
font_parse_xlfd (char *name, Lisp_Object font)
Kenichi Handa's avatar
Kenichi Handa committed
985 986
{
  int len = strlen (name);
Kenichi Handa's avatar
Kenichi Handa committed
987
  int i, j, n;
988
  char *f[XLFD_LAST_INDEX + 1];
Kenichi Handa's avatar
Kenichi Handa committed
989
  Lisp_Object val;
990
  char *p;
Kenichi Handa's avatar
Kenichi Handa committed
991

992
  if (len > 255 || !len)
Kenichi Handa's avatar
Kenichi Handa committed
993 994
    /* Maximum XLFD name length is 255. */
    return -1;
995
  /* Accept "*-.." as a fully specified XLFD. */
996
  if (name[0] == '*' && (len == 1 || name[1] == '-'))
997 998 999 1000
    i = 1, f[XLFD_FOUNDRY_INDEX] = name;
  else
    i = 0;
  for (p = name + i; *p; p++)
Kenichi Handa's avatar
Kenichi Handa committed
1001 1002 1003 1004 1005 1006 1007
    if (*p == '-')
      {
	f[i++] = p + 1;
	if (i == XLFD_LAST_INDEX)
	  break;
      }
  f[i] = name + len;
Kenichi Handa's avatar
Kenichi Handa committed
1008

1009 1010
#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)
1011

1012
  if (i == XLFD_LAST_INDEX)
1013
    {
Kenichi Handa's avatar
Kenichi Handa committed
1014
      /* Fully specified XLFD.  */
1015 1016
      int pixel_size;

1017 1018
      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
1019 1020
      for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX;
	   i <= XLFD_SWIDTH_INDEX; i++, j++)
1021
	{
1022
	  val = INTERN_FIELD_SYM (i);
1023
	  if (! NILP (val))
1024
	    {
1025
	      if ((n = font_style_to_value (j, INTERN_FIELD_SYM (i), 0)) < 0)
Kenichi Handa's avatar
Kenichi Handa committed
1026 1027
		return -1;
	      ASET (font, j, make_number (n));
1028 1029
	    }
	}
1030
      ASET (font, FONT_ADSTYLE_INDEX, INTERN_FIELD_SYM (XLFD_ADSTYLE_INDEX));
Kenichi Handa's avatar
Kenichi Handa committed
1031 1032 1033 1034 1035
      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],
1036 1037
				f[XLFD_LAST_INDEX] - f[XLFD_REGISTRY_INDEX],
				1));
1038 1039
      p = f[XLFD_PIXEL_INDEX];
      if (*p == '[' && (pixel_size = parse_matrix (p)) >= 0)
1040
	ASET (font, FONT_SIZE_INDEX, make_number (pixel_size));
1041 1042
      else
	{
Kenichi Handa's avatar
Kenichi Handa committed
1043 1044
	  val = INTERN_FIELD (XLFD_PIXEL_INDEX);
	  if (INTEGERP (val))
1045
	    ASET (font, FONT_SIZE_INDEX, val);
1046 1047
	  else if (FONT_ENTITY_P (font))
	    return -1;
1048 1049 1050 1051
	  else
	    {
	      double point_size = -1;

1052
	      font_assert (FONT_SPEC_P (font));
1053 1054 1055 1056 1057 1058 1059
	      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));
1060 1061
	    }
	}
1062

1063 1064 1065 1066
      val = INTERN_FIELD (XLFD_RESY_INDEX);
      if (! NILP (val) && ! INTEGERP (val))
	return -1;
      ASET (font, FONT_DPI_INDEX, val);
Kenichi Handa's avatar
Kenichi Handa committed
1067 1068
      val = INTERN_FIELD (XLFD_SPACING_INDEX);
      if (! NILP (val))
1069
	{
Kenichi Handa's avatar
Kenichi Handa committed
1070 1071 1072 1073
	  val = font_prop_validate_spacing (QCspacing, val);
	  if (! INTEGERP (val))
	    return -1;
	  ASET (font, FONT_SPACING_INDEX, val);
1074 1075 1076 1077
	}
      p = f[XLFD_AVGWIDTH_INDEX];
      if (*p == '~')
	p++;
1078 1079 1080 1081
      val = font_intern_prop (p, f[XLFD_REGISTRY_INDEX] - 1 - p, 0);
      if (! NILP (val) && ! INTEGERP (val))
	return -1;
      ASET (font, FONT_AVGWIDTH_INDEX, val);
1082 1083
    }
  else
Kenichi Handa's avatar
Kenichi Handa committed
1084
    {
1085
      int wild_card_found = 0;
1086
      Lisp_Object prop[XLFD_LAST_INDEX];
1087

Kenichi Handa's avatar
Kenichi Handa committed
1088 1089
      if (FONT_ENTITY_P (font))
	return -1;
1090
      for (j = 0; j < i; j++)
1091
	{
1092
	  if (*f[j] == '*')
1093
	    {
1094 1095 1096 1097 1098 1099
	      if (f[j][1] && f[j][1] != '-')
		return -1;
	      prop[j] = Qnil;
	      wild_card_found = 1;
	    }
	  else if (j + 1 < i)
Kenichi Handa's avatar
Kenichi Handa committed
1100
	    prop[j] = INTERN_FIELD (j);
1101
	  else
1102
	    prop[j] = font_intern_prop (f[j], f[i] - f[j], 0);
1103 1104
	}
      if (! wild_card_found)
Kenichi Handa's avatar
Kenichi Handa committed
1105
	return -1;
1106
      if (font_expand_wildcards (prop, i) < 0)
1107
	return -1;
1108

Kenichi Handa's avatar
Kenichi Handa committed
1109 1110 1111 1112
      ASET (font, FONT_FOUNDRY_INDEX, prop[XLFD_FOUNDRY_INDEX]);
      ASET (font, FONT_FAMILY_INDEX, prop[XLFD_FAMILY_INDEX]);
      for (i = XLFD_WEIGHT_INDEX, j = FONT_WEIGHT_INDEX;
	   i <= XLFD_SWIDTH_INDEX; i++, j++)
1113
	if (! NILP (prop[i]))
Kenichi Handa's avatar
Kenichi Handa committed
1114 1115 1116 1117 1118 1119
	  {
	    if ((n = font_style_to_value (j, prop[i], 1)) < 0)
	      return -1;
	    ASET (font, j, make_number (n));
	  }
      ASET (font, FONT_ADSTYLE_INDEX, prop[XLFD_ADSTYLE_INDEX]);
1120 1121
      val = prop[XLFD_REGISTRY_INDEX];
      if (NILP (val))
Kenichi Handa's avatar
Kenichi Handa committed
1122
	{
1123 1124
	  val = prop[XLFD_ENCODING_INDEX];
	  if (! NILP (val))
Kenichi Handa's avatar
Kenichi Handa committed
1125
	    val = concat2 (build_string ("*-"), SYMBOL_NAME (val));
1126
	}
1127
      else if (NILP (prop[XLFD_ENCODING_INDEX]))
Kenichi Handa's avatar
Kenichi Handa committed
1128
	val = concat2 (SYMBOL_NAME (val), build_string ("-*"));
1129
      else
Kenichi Handa's avatar
Kenichi Handa committed