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fontmap.c
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fontmap.c
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/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
Copyright (C) 2002-2015 by Jin-Hwan Cho and Shunsaku Hirata,
the dvipdfmx project team.
Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "libtexpdf.h"
#include <string.h>
#include "mem.h"
#include "error.h"
#include "dpxfile.h"
#include "dpxutil.h"
#include "subfont.h"
#include "fontmap.h"
static int verbose = 0;
void
texpdf_fontmap_set_verbose (void)
{
verbose++;
}
int
texpdf_fontmap_get_verbose (void)
{
return verbose;
}
void
texpdf_init_fontmap_record (fontmap_rec *mrec)
{
ASSERT(mrec);
mrec->map_name = NULL;
/* SFD char mapping */
mrec->charmap.sfd_name = NULL;
mrec->charmap.subfont_id = NULL;
/* for OFM */
mrec->opt.mapc = -1; /* compatibility */
mrec->font_name = NULL;
mrec->enc_name = NULL;
mrec->opt.slant = 0.0;
mrec->opt.extend = 1.0;
mrec->opt.bold = 0.0;
mrec->opt.flags = 0;
mrec->opt.design_size = -1.0;
mrec->opt.tounicode = NULL;
mrec->opt.otl_tags = NULL; /* deactivated */
mrec->opt.index = 0;
mrec->opt.charcoll = NULL;
mrec->opt.style = FONTMAP_STYLE_NONE;
mrec->opt.stemv = -1; /* not given explicitly by an option */
mrec->opt.cff_charsets = NULL;
}
void
texpdf_clear_fontmap_record (fontmap_rec *mrec)
{
ASSERT(mrec);
if (mrec->map_name)
RELEASE(mrec->map_name);
if (mrec->charmap.sfd_name)
RELEASE(mrec->charmap.sfd_name);
if (mrec->charmap.subfont_id)
RELEASE(mrec->charmap.subfont_id);
if (mrec->enc_name)
RELEASE(mrec->enc_name);
if (mrec->font_name)
RELEASE(mrec->font_name);
if (mrec->opt.tounicode)
RELEASE(mrec->opt.tounicode);
if (mrec->opt.otl_tags)
RELEASE(mrec->opt.otl_tags);
if (mrec->opt.charcoll)
RELEASE(mrec->opt.charcoll);
texpdf_init_fontmap_record(mrec);
}
/* strdup: just returns NULL for NULL */
static char *
mstrdup (const char *s)
{
char *r;
if (!s)
return NULL;
r = NEW(strlen(s) + 1, char);
strcpy(r, s);
return r;
}
void
texpdf_copy_fontmap_record (fontmap_rec *dst, const fontmap_rec *src)
{
ASSERT( dst && src );
dst->map_name = mstrdup(src->map_name);
dst->charmap.sfd_name = mstrdup(src->charmap.sfd_name);
dst->charmap.subfont_id = mstrdup(src->charmap.subfont_id);
dst->font_name = mstrdup(src->font_name);
dst->enc_name = mstrdup(src->enc_name);
dst->opt.slant = src->opt.slant;
dst->opt.extend = src->opt.extend;
dst->opt.bold = src->opt.bold;
dst->opt.flags = src->opt.flags;
dst->opt.mapc = src->opt.mapc;
dst->opt.tounicode = mstrdup(src->opt.tounicode);
dst->opt.otl_tags = mstrdup(src->opt.otl_tags);
dst->opt.index = src->opt.index;
dst->opt.charcoll = mstrdup(src->opt.charcoll);
dst->opt.style = src->opt.style;
dst->opt.stemv = src->opt.stemv;
dst->opt.cff_charsets = src->opt.cff_charsets;
}
static void
hval_free (void *vp)
{
fontmap_rec *mrec = (fontmap_rec *) vp;
texpdf_clear_fontmap_record(mrec);
RELEASE(mrec);
}
void
pdftex_fill_in_defaults (fontmap_rec *mrec, const char *tex_name)
{
if (mrec->enc_name &&
(!strcmp(mrec->enc_name, "default") ||
!strcmp(mrec->enc_name, "none"))) {
RELEASE(mrec->enc_name);
mrec->enc_name = NULL;
}
if (mrec->font_name &&
(!strcmp(mrec->font_name, "default") ||
!strcmp(mrec->font_name, "none"))) {
RELEASE(mrec->font_name);
mrec->font_name = NULL;
}
/* We *must* fill font_name either explicitly or by default */
if (!mrec->font_name) {
mrec->font_name = NEW(strlen(tex_name)+1, char);
strcpy(mrec->font_name, tex_name);
}
mrec->map_name = NEW(strlen(tex_name)+1, char);
strcpy(mrec->map_name, tex_name);
#ifndef WITHOUT_COMPAT
/* Use "UCS" character collection for Unicode SFD
* and Identity CMap combination. For backward
* compatibility.
*/
if (mrec->charmap.sfd_name && mrec->enc_name &&
!mrec->opt.charcoll) {
if ((!strcmp(mrec->enc_name, "Identity-H") ||
!strcmp(mrec->enc_name, "Identity-V"))
&&
(strstr(mrec->charmap.sfd_name, "Uni") ||
strstr(mrec->charmap.sfd_name, "UBig") ||
strstr(mrec->charmap.sfd_name, "UBg") ||
strstr(mrec->charmap.sfd_name, "UGB") ||
strstr(mrec->charmap.sfd_name, "UKS") ||
strstr(mrec->charmap.sfd_name, "UJIS"))) {
mrec->opt.charcoll = NEW(strlen("UCS")+1, char);
strcpy(mrec->opt.charcoll, "UCS");
}
}
#endif /* WITHOUT_COMPAT */
return;
}
fontmap_t *native_fontmap = NULL;
#define fontmap_invalid(m) (!(m) || !(m)->map_name || !(m)->font_name)
char *
texpdf_chop_sfd_name (const char *tex_name, char **sfd_name)
{
char *fontname;
char *p, *q;
int m, n, len;
*sfd_name = NULL;
p = strchr(tex_name, '@');
if (!p ||
p[1] == '\0' || p == tex_name) {
return NULL;
}
m = (int) (p - tex_name);
p++;
q = strchr(p, '@');
if (!q || q == p) {
return NULL;
}
n = (int) (q - p);
q++;
len = strlen(tex_name) - n;
fontname = NEW(len+1, char);
memcpy(fontname, tex_name, m);
fontname[m] = '\0';
if (*q)
strcat(fontname, q);
*sfd_name = NEW(n+1, char);
memcpy(*sfd_name, p, n);
(*sfd_name)[n] = '\0';
return fontname;
}
char *
texpdf_make_subfont_name (const char *map_name, const char *sfd_name, const char *sub_id)
{
char *tfm_name;
int n, m;
char *p, *q;
p = strchr(map_name, '@');
if (!p || p == map_name)
return NULL;
m = (int) (p - map_name);
q = strchr(p + 1, '@');
if (!q || q == p + 1)
return NULL;
n = (int) (q - p) + 1; /* including two '@' */
if (strlen(sfd_name) != n - 2 ||
memcmp(p + 1, sfd_name, n - 2))
return NULL;
tfm_name = NEW(strlen(map_name) - n + strlen(sub_id) + 1, char);
memcpy(tfm_name, map_name, m);
tfm_name[m] = '\0';
strcat(tfm_name, sub_id);
if (q[1]) /* not ending with '@' */
strcat(tfm_name, q + 1);
return tfm_name;
}
int
texpdf_insert_fontmap_record (fontmap_t* map, const char *kp, const fontmap_rec *vp)
{
fontmap_rec *mrec;
char *fnt_name, *sfd_name;
if (!kp || fontmap_invalid(vp)) {
WARN("Invalid fontmap record...");
return -1;
}
if (verbose > 3)
MESG("fontmap>> insert key=\"%s\"...", kp);
fnt_name = texpdf_chop_sfd_name(kp, &sfd_name);
if (fnt_name && sfd_name) {
char *tfm_name;
char **subfont_ids;
int n = 0;
subfont_ids = sfd_get_subfont_ids(sfd_name, &n);
if (!subfont_ids) {
RELEASE(fnt_name);
RELEASE(sfd_name);
return -1;
}
if (verbose > 3)
MESG("\nfontmap>> Expand @%s@:", sfd_name);
while (n-- > 0) {
tfm_name = texpdf_make_subfont_name(kp, sfd_name, subfont_ids[n]);
if (!tfm_name)
continue;
if (verbose > 3)
MESG(" %s", tfm_name);
mrec = NEW(1, fontmap_rec);
texpdf_init_fontmap_record(mrec);
mrec->map_name = mstrdup(kp); /* link to this entry */
mrec->charmap.sfd_name = mstrdup(sfd_name);
mrec->charmap.subfont_id = mstrdup(subfont_ids[n]);
ht_insert_table(map, tfm_name, strlen(tfm_name), mrec);
RELEASE(tfm_name);
}
RELEASE(fnt_name);
RELEASE(sfd_name);
}
mrec = NEW(1, fontmap_rec);
texpdf_copy_fontmap_record(mrec, vp);
if (mrec->map_name && !strcmp(kp, mrec->map_name)) {
RELEASE(mrec->map_name);
mrec->map_name = NULL;
}
ht_insert_table(map, kp, strlen(kp), mrec);
if (verbose > 3)
MESG("\n");
return 0;
}
int
texpdf_insert_native_fontmap_record (const char *path, uint32_t index,
int layout_dir, int extend, int slant, int embolden)
{
char *fontmap_key;
fontmap_rec *mrec;
ASSERT(path);
fontmap_key = malloc(strlen(path) + 40); // CHECK
sprintf(fontmap_key, "%s/%d/%c/%d/%d/%d", path, index, layout_dir == 0 ? 'H' : 'V', extend, slant, embolden);
if (verbose)
MESG("<NATIVE-FONTMAP:%s", fontmap_key);
mrec = NEW(1, fontmap_rec);
texpdf_init_fontmap_record(mrec);
mrec->map_name = fontmap_key;
mrec->enc_name = mstrdup(layout_dir == 0 ? "Identity-H" : "Identity-V");
mrec->font_name = mstrdup(path);
mrec->opt.index = index;
if (layout_dir != 0)
mrec->opt.flags |= FONTMAP_OPT_VERT;
pdftex_fill_in_defaults(mrec, fontmap_key);
mrec->opt.extend = extend / 65536.0;
mrec->opt.slant = slant / 65536.0;
mrec->opt.bold = embolden / 65536.0;
texpdf_insert_fontmap_record(native_fontmap, mrec->map_name, mrec);
texpdf_clear_fontmap_record(mrec);
RELEASE(mrec);
if (verbose)
MESG(">");
return 0;
}
int
texpdf_load_native_font (const char *filename, unsigned long index,
int layout_dir, int extend, int slant, int embolden)
{
return texpdf_insert_native_fontmap_record(filename, index,
layout_dir, extend, slant, embolden);
}
#if 0
/* tfm_name="dmjhira10", map_name="dmj@DNP@10", sfd_name="DNP"
* --> sub_id="hira"
* Test if tfm_name can be really considered as subfont.
*/
static int
test_subfont (const char *tfm_name, const char *map_name, const char *sfd_name)
{
int r = 0;
char **ids;
int n, m;
char *p = (char *) map_name;
char *q = (char *) tfm_name;
ASSERT( tfm_name && map_name && sfd_name );
/* until first occurence of '@' */
for ( ; *p && *q && *p == *q && *p != '@'; p++, q++);
if (*p != '@')
return 0;
p++;
/* compare sfd_name (should be always true here) */
if (strlen(p) <= strlen(sfd_name) ||
memcmp(p, sfd_name, strlen(sfd_name)) ||
p[strlen(sfd_name)] != '@')
return 0;
/* check tfm_name follows second '@' */
p += strlen(sfd_name) + 1;
if (*p) {
char *r = (char *) tfm_name;
r += strlen(tfm_name) - strlen(p);
if (strcmp(r, p))
return 0;
}
/* Now 'p' is located at next to SFD name terminator
* (second '@') in map_name and 'q' is at first char
* of subfont_id substring in tfm_name.
*/
n = strlen(q) - strlen(p); /* length of subfont_id string */
if (n <= 0)
return 0;
/* check if n-length substring 'q' is valid as subfont ID */
ids = sfd_get_subfont_ids(sfd_name, &m);
if (!ids)
return 0;
while (!r && m-- > 0) {
if (strlen(ids[m]) == n &&
!memcmp(q, ids[m], n)) {
r = 1;
}
}
return r;
}
#endif /* 0 */
fontmap_rec *
texpdf_lookup_fontmap_record (fontmap_t* map, const char *tfm_name)
{
fontmap_rec *mrec = NULL;
if (map && tfm_name)
mrec = texpdf_ht_lookup_table(map, tfm_name, strlen(tfm_name));
return mrec;
}
void
texpdf_init_fontmaps (void)
{
native_fontmap = NEW(1, struct ht_table);
texpdf_ht_init_table(native_fontmap, hval_free);
}
void
texpdf_close_fontmaps (void)
{
if (native_fontmap) {
texpdf_ht_clear_table(native_fontmap);
RELEASE(native_fontmap);
}
native_fontmap = NULL;
release_sfd_record();
}