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/* This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
Copyright (C) 2002-2020 by Jin-Hwan Cho and Shunsaku Hirata,
the dvipdfmx project team.
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.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include "system.h"
#include "mem.h"
#include "error.h"
#include "dpxutil.h"
#include "pdfparse.h"
#include "specials.h"
#include "spc_util.h"
#include "spc_dvipdfmx.h"
static int
spc_handler_null (struct spc_env *spe, struct spc_arg *args)
{
args->curptr = args->endptr;
return 0;
}
static int
spc_handler_dvipdfmx_catch_phantom (struct spc_env *spe, struct spc_arg *args)
{
int mode, error;
skip_white(&args->curptr, args->endptr);
{
pdf_obj *b = parse_pdf_boolean(&args->curptr, args->endptr);
if (!b) {
WARN("A boolean value expected but not found...");
return -1;
}
mode = pdf_boolean_value(b);
pdf_release_obj(b);
}
spc_set_linkmode(spe, mode);
skip_white(&args->curptr, args->endptr);
if (mode == 1 && args->curptr < args->endptr) {
transform_info ti;
transform_info_clear(&ti);
error = spc_util_read_dimtrns(spe, &ti, args, 0);
if (error)
return -1;
if (ti.flags & INFO_HAS_HEIGHT) {
spc_set_phantom(spe, ti.height, ti.depth);
}
skip_white(&args->curptr, args->endptr);
}
return 0;
}
static struct spc_handler dvipdfmx_handlers[] = {
{"config", spc_handler_null}, /* handled at bop */
{"catch_phantom", spc_handler_dvipdfmx_catch_phantom},
};
int
spc_dvipdfmx_check_special (const char *buf, int len)
{
int r = 0;
const char *p, *endptr;
p = buf;
endptr = p + len;
skip_white(&p, endptr);
if (p + strlen("dvipdfmx:") <= endptr &&
!memcmp(p, "dvipdfmx:", strlen("dvipdfmx:"))) {
r = 1;
}
return r;
}
int
spc_dvipdfmx_setup_handler (struct spc_handler *sph,
struct spc_env *spe, struct spc_arg *ap)
{
int error = -1, i;
char *q;
ASSERT(sph && spe && ap);
skip_white(&ap->curptr, ap->endptr);
if (ap->curptr + strlen("dvipdfmx:") >= ap->endptr ||
memcmp(ap->curptr, "dvipdfmx:", strlen("dvipdfmx:"))) {
spc_warn(spe, "Not dvipdfmx: special???");
return -1;
}
ap->curptr += strlen("dvipdfmx:");
skip_white(&ap->curptr, ap->endptr);
q = parse_c_ident(&ap->curptr, ap->endptr);
if (q) {
for (i = 0;
i < sizeof(dvipdfmx_handlers) / sizeof(struct spc_handler); i++) {
if (!strcmp(q, dvipdfmx_handlers[i].key)) {
ap->command = dvipdfmx_handlers[i].key;
sph->key = "dvipdfmx:";
sph->exec = dvipdfmx_handlers[i].exec;
skip_white(&ap->curptr, ap->endptr);
error = 0;
break;
}
}
RELEASE(q);
}
return error;
}
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