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-rw-r--r--Build/source/texk/dvipdfm-x/spc_pdfm.c2435
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diff --git a/Build/source/texk/dvipdfm-x/spc_pdfm.c b/Build/source/texk/dvipdfm-x/spc_pdfm.c
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--- a/Build/source/texk/dvipdfm-x/spc_pdfm.c
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@@ -1,2435 +0,0 @@
-/* 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.
-
- 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.
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <ctype.h>
-
-#include "system.h"
-#include "mem.h"
-#include "error.h"
-#include "mfileio.h"
-
-#include "numbers.h"
-
-#include "fontmap.h"
-#include "dpxfile.h"
-#include "dpxutil.h"
-#include "dpxconf.h"
-
-#include "unicode.h"
-
-#include "pdfobj.h"
-#include "pdfparse.h"
-
-#include "pdfdoc.h"
-
-#include "pdfximage.h"
-#include "pdfdraw.h"
-#include "pdfcolor.h"
-#include "pdfdev.h"
-
-#include "specials.h"
-
-#include "spc_util.h"
-#include "spc_pdfm.h"
-
-#include "dvipdfmx.h"
-
-#define SPC_PDFM_SUPPORT_ANNOT_TRANS 1
-
-struct tounicode {
- int cmap_id;
- int unescape_backslash;
- pdf_obj *taintkeys; /* An array of PDF names. */
-};
-
-struct spc_pdf_
-{
- pdf_obj *annot_dict; /* pending annotation dict */
- int lowest_level; /* current min level of outlines */
- struct tounicode cd; /* For to-UTF16-BE conversion :( */
- pdf_obj *pageresources; /* Add to all page resource dict */
-};
-
-static struct spc_pdf_ _pdf_stat = {
- NULL,
- 255,
- { -1, 0, NULL },
- NULL
-};
-
-static pdf_obj *
-parse_pdf_reference (const char **start, const char *end, void *user_data)
-{
- pdf_obj *result = NULL;
- char *name;
-
- skip_white(start, end);
- name = parse_opt_ident(start, end);
- if (name) {
- result = spc_lookup_reference(name);
- if (!result) {
- WARN("Could not find the named reference (@%s).", name);
- }
- RELEASE(name);
- } else {
- WARN("Could not find a reference name.");
- result = NULL;
- }
-
- return result;
-}
-
-static int
-spc_handler_pdfm__init (void *dp)
-{
- struct spc_pdf_ *sd = dp;
- /* The folllowing dictionary entry keys are considered as keys for
- * text strings. Be sure that string object is NOT always a text string.
- */
- static const char *default_taintkeys[] = {
- "Title", "Author", "Subject", "Keywords",
- "Creator", "Producer", "Contents", "Subj",
- "TU", "T", "TM", NULL /* EOD */
- };
- int i;
-
- sd->annot_dict = NULL;
- sd->lowest_level = 255;
- sd->cd.taintkeys = pdf_new_array();
- for (i = 0; default_taintkeys[i] != NULL; i++) {
- pdf_add_array(sd->cd.taintkeys,
- pdf_new_name(default_taintkeys[i]));
- }
- sd->pageresources = NULL;
-
- return 0;
-}
-
-static int
-spc_handler_pdfm__clean (void *dp)
-{
- struct spc_pdf_ *sd = dp;
-
- if (sd->annot_dict) {
- WARN("Unbalanced bann and eann found.");
- pdf_release_obj(sd->annot_dict);
- }
- sd->lowest_level = 255;
- sd->annot_dict = NULL;
- if (sd->cd.taintkeys)
- pdf_release_obj(sd->cd.taintkeys);
- sd->cd.taintkeys = NULL;
- if (sd->pageresources)
- pdf_release_obj(sd->pageresources);
- sd->pageresources = NULL;
-
- return 0;
-}
-
-
-int
-spc_pdfm_at_begin_document (void)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- return spc_handler_pdfm__init(sd);
-}
-
-int
-spc_pdfm_at_end_document (void)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- return spc_handler_pdfm__clean(sd);
-}
-
-/* Why should we have this kind of things? */
-static int
-safeputresdent (pdf_obj *kp, pdf_obj *vp, void *dp)
-{
- char *key;
-
- ASSERT(kp && vp && dp);
-
- key = pdf_name_value(kp);
- if (pdf_lookup_dict(dp, key))
- WARN("Object \"%s\" already defined in dict! (ignored)", key);
- else {
- pdf_add_dict(dp,
- pdf_link_obj(kp), pdf_link_obj(vp));
- }
- return 0;
-}
-
-static int
-safeputresdict (pdf_obj *kp, pdf_obj *vp, void *dp)
-{
- char *key;
- pdf_obj *dict;
-
- ASSERT(kp && vp && dp);
-
- key = pdf_name_value(kp);
- dict = pdf_lookup_dict(dp, key);
-
- /* Not sure what is the best way to handle this situation */
- if (PDF_OBJ_INDIRECTTYPE(dict)) {
- if (PDF_OBJ_INDIRECTTYPE(vp)) {
- /* If two indirect objects are pointing the same object, do nothing. */
- if (!pdf_compare_reference(dict, vp)) {
- return 0;
- } else {
- /* otherwise merge the content of old one (see below) */
- dict = pdf_deref_obj(dict);
- pdf_release_obj(dict); /* decrement link count */
- }
- }
- }
-
- if (pdf_obj_typeof(vp) == PDF_INDIRECT) {
- /* Copy the content of old resource category dict (if exists) */
- if (dict) {
- pdf_obj *dst = pdf_deref_obj(vp);
- if (dst) {
- if (pdf_obj_typeof(dst) == PDF_DICT) {
- pdf_foreach_dict(dict, safeputresdent, dst);
- pdf_release_obj(dst);
- } else {
- WARN("Invalid type (not DICT) for page/form resource dict entry: key=\"%s\"", key);
- pdf_release_obj(dst);
- return -1;
- }
- }
- }
- pdf_add_dict(dp, pdf_new_name(key), pdf_link_obj(vp));
- } else if (pdf_obj_typeof(vp) == PDF_DICT) {
- if (dict)
- pdf_foreach_dict(vp, safeputresdent, dict);
- else {
- pdf_add_dict(dp, pdf_new_name(key), pdf_link_obj(vp));
- }
- } else {
- WARN("Invalid type (not DICT) for page/form resource dict entry: key=\"%s\"", key);
- return -1;
- }
-
- return 0;
-}
-
-static
-int putpageresources (pdf_obj *kp, pdf_obj *vp, void *dp)
-{
- char *resource_name;
-
- ASSERT(kp && vp);
-
- resource_name = pdf_name_value(kp);
- pdf_doc_add_page_resource(dp, resource_name, pdf_link_obj(vp));
-
- return 0;
-}
-
-static
-int forallresourcecategory (pdf_obj *kp, pdf_obj *vp, void *dp)
-{
- int r = -1;
- char *category;
-
- ASSERT(kp && vp);
-
- category = pdf_name_value(kp);
- switch (pdf_obj_typeof(vp)) {
- case PDF_DICT:
- r = pdf_foreach_dict(vp, putpageresources, category);
- break;
- case PDF_INDIRECT:
- {
- /* In case pdf:pageresouces << /Category @res >> */
- pdf_obj *obj;
- obj = pdf_deref_obj(vp);
- if (!obj) {
- WARN("Can't deref object for page resource: %s", category);
- r = -1;
- } else if (pdf_obj_typeof(obj) != PDF_DICT) {
- WARN("Invalid object type for page resource: %s", category);
- r = -1;
- } else {
- pdf_obj *res_dict, *dict;
-
- res_dict = pdf_doc_current_page_resources();
- dict = pdf_lookup_dict(res_dict, category);
- if (!dict) {
- pdf_add_dict(res_dict, pdf_new_name(category), pdf_link_obj(vp));
- } else {
- if (pdf_obj_typeof(dict) == PDF_INDIRECT) {
- dict = pdf_deref_obj(dict);
- pdf_release_obj(dict); /* FIXME: jus to decrement link counter */
- }
-#if 0
- /* This will leave garbage (object "res") since object "res"
- * supplied as resource dictionary will have label but we copy the
- * content of res here and never use reference to it.
- */
- pdf_foreach_dict(obj, safeputresdent, dict);
-#else
- /* With the below code resource dictionary is replaced by user
- * supplied one, @res. However, there is a problem that all
- * resources including internally generated one may go into single
- * dictionary referenced by @res, and will be visible from any
- * subsequent pages.
- */
- pdf_foreach_dict(dict, safeputresdent, obj);
- pdf_add_dict(res_dict, pdf_new_name(category), pdf_link_obj(vp));
-#endif
- }
- pdf_release_obj(obj);
- }
- }
- break;
- default:
- WARN("Invalid object type for page resource specified for \"%s\"", category);
- }
-
- return r;
-}
-
-int
-spc_pdfm_at_end_page (void)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
-
- if (sd->pageresources) {
- pdf_foreach_dict(sd->pageresources, forallresourcecategory, NULL);
- }
-
- return 0;
-}
-
-/* Dvipdfm specials */
-static int
-spc_handler_pdfm_bop (struct spc_env *spe, struct spc_arg *args)
-{
- if (args->curptr < args->endptr) {
- pdf_doc_set_bop_content(args->curptr,
- (int) (args->endptr - args->curptr));
- }
-
- args->curptr = args->endptr;
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_eop (struct spc_env *spe, struct spc_arg *args)
-{
- if (args->curptr < args->endptr) {
- pdf_doc_set_eop_content(args->curptr,
- (int) (args->endptr - args->curptr));
- }
-
- args->curptr = args->endptr;
-
- return 0;
-}
-
-#define streamfiltered(o) \
- (pdf_lookup_dict(pdf_stream_dict((o)), "Filter") ? 1 : 0)
-
-/* Think what happens if you do
- *
- * pdf:put @resources << /Font << >> >>
- *
- */
-static int
-spc_handler_pdfm_put (struct spc_env *spe, struct spc_arg *ap)
-{
- pdf_obj *obj1, *obj2; /* put obj2 into obj1 */
- char *ident;
- int error = 0;
-
- skip_white(&ap->curptr, ap->endptr);
-
- ident = parse_opt_ident(&ap->curptr, ap->endptr);
- if (!ident) {
- spc_warn(spe, "Missing object identifier.");
- return -1;
- }
- obj1 = spc_lookup_object(ident);
- if (!obj1) {
- spc_warn(spe, "Specified object not exist: %s", ident);
- RELEASE(ident);
- return -1;
- }
- skip_white(&ap->curptr, ap->endptr);
-
- obj2 = parse_pdf_object_extended(&ap->curptr, ap->endptr, NULL, parse_pdf_reference, spe);
- if (!obj2) {
- spc_warn(spe, "Missing (an) object(s) to put into \"%s\"!", ident);
- RELEASE(ident);
- return -1;
- }
-
- switch (pdf_obj_typeof(obj1)) {
- case PDF_DICT:
- if (pdf_obj_typeof(obj2) != PDF_DICT) {
- spc_warn(spe, "Inconsistent object type for \"put\" (expecting DICT): %s", ident);
- error = -1;
- } else {
- if (!strcmp(ident, "resources"))
- error = pdf_foreach_dict(obj2, safeputresdict, obj1);
- else {
- pdf_merge_dict(obj1, obj2);
- }
- }
- break;
-
- case PDF_STREAM:
- if (pdf_obj_typeof(obj2) == PDF_DICT)
- pdf_merge_dict(pdf_stream_dict(obj1), obj2);
- else if (pdf_obj_typeof(obj2) == PDF_STREAM)
-#if 0
- {
- pdf_merge_dict(pdf_stream_dict(obj1), pdf_stream_dict(obj2));
- pdf_add_stream(obj1, pdf_stream_dataptr(obj2), pdf_stream_length(obj2));
- }
-#else
- {
- spc_warn(spe, "\"put\" operation not supported for STREAM <- STREAM: %s", ident);
- error = -1;
- }
-#endif
- else {
- spc_warn(spe, "Invalid type: expecting a DICT or STREAM: %s", ident);
- error = -1;
- }
- break;
-
- case PDF_ARRAY:
- /* dvipdfm */
- pdf_add_array(obj1, pdf_link_obj(obj2));
- while (ap->curptr < ap->endptr) {
- pdf_obj *obj3 = parse_pdf_object_extended(&ap->curptr, ap->endptr, NULL, parse_pdf_reference, spe);
- if (!obj3)
- break;
- pdf_add_array(obj1, obj3);
- skip_white(&ap->curptr, ap->endptr);
- }
- break;
-
- default:
- spc_warn(spe, "Can't \"put\" object into non-DICT/STREAM/ARRAY type object: %s", ident);
- error = -1;
- break;
- }
- pdf_release_obj(obj2);
- RELEASE(ident);
-
- return error;
-}
-
-
-/* For pdf:tounicode support
- * This feature is provided for convenience. TeX can't do
- * input encoding conversion.
- */
-#include "cmap.h"
-
-static size_t
-calculate_size_utf16 (const unsigned char *p, const unsigned char *endptr)
-{
- size_t len = 0;
-
- while (p < endptr) {
- unsigned char c = *p;
- if (c < 0x80) {
- len += 2;
- p += 1;
- } else if (c < 0xE0) {
- len += 2;
- p += 2;
- } else if (c < 0xF0) {
- len += 2;
- p += 3;
- } else if (c < 0xF8) {
- len += 4; /* Surrogate */
- p += 4;
- } else if (c < 0xFC) {
- len += 4; /* Surrogate */
- p += 5;
- } else if (c < 0xFE) {
- len += 4; /* Surrogate */
- p += 6;
- }
- }
-
- return len;
-}
-
-static int
-reencode_string_from_utf8_to_utf16be (pdf_obj *instring)
-{
- int error = 0;
- unsigned char *strptr;
- size_t length;
- int non_ascii;
- const unsigned char *p, *endptr;
-
- ASSERT(instring);
- ASSERT(PDF_OBJ_STRINGTYPE(instring));
-
- strptr = pdf_string_value(instring);
- length = pdf_string_length(instring);
-
- /* check if the input string is strictly ASCII */
- p = strptr;
- endptr = strptr + length;
- non_ascii = 0;
- for ( ; p < endptr; p++) {
- if (*p > 127)
- non_ascii++;
- }
- if (non_ascii == 0)
- return 0; /* no need to reencode ASCII strings */
-
- if (!UC_UTF8_is_valid_string(strptr, endptr)) {
- error = -1;
- } else {
- unsigned char *q, *buf, *limptr;
- size_t len;
-
- p = strptr;
- /* Rough estimate of output length. */
- len = calculate_size_utf16(p, endptr) + 2;
- buf = NEW(len, unsigned char);
- q = buf;
- limptr = buf + len;
- q[0] = 0xfe; q[1] = 0xff;
- q += 2;
- while (p < endptr && q < limptr && !error) {
- int32_t ucv;
- size_t count;
-
- ucv = UC_UTF8_decode_char(&p, endptr);
- if (!UC_is_valid(ucv)) {
- error = -1;
- } else {
- count = UC_UTF16BE_encode_char(ucv, &q, limptr);
- if (count == 0) {
- error = -1;
- }
- }
- }
- if (!error)
- pdf_set_string(instring, buf, q - buf);
- RELEASE(buf);
- }
-
- return error;
-}
-
-static int
-reencode_string (CMap *cmap, pdf_obj *instring)
-{
- int error = 0;
-
- if (!instring || !PDF_OBJ_STRINGTYPE(instring))
- return -1;
-
- if (cmap) {
- unsigned char *obuf;
- unsigned char *obufcur;
- const unsigned char *inbufcur;
- int inbufleft, obufleft, obufsize;
-
- inbufleft = pdf_string_length(instring);
- inbufcur = pdf_string_value (instring);
-
- obufsize = inbufleft * 4 + 2;
- obuf = NEW(obufsize, unsigned char);
- obuf[0] = 0xfe;
- obuf[1] = 0xff;
- obufcur = obuf + 2;
- obufleft = obufsize - 2;
-
- CMap_decode(cmap, &inbufcur, &inbufleft, &obufcur, &obufleft);
-
- if (inbufleft > 0)
- error = -1;
- if (!error)
- pdf_set_string(instring, obuf, obufsize - obufleft);
- RELEASE(obuf);
- }
-
- return error;
-}
-
-/* The purpose of this routine is to check if given string object is
- * surely an object for *text* strings. It does not do a complete check
- * but does a quick check. Please add entries for taintkeys if you have found
- * additional dictionary entries which is considered as a text string.
- */
-static int
-need_reencode (pdf_obj *kp, pdf_obj *vp, struct tounicode *cd)
-{
- int r = 0, i;
- pdf_obj *tk;
-
- ASSERT( cd && cd->taintkeys );
- ASSERT( pdf_obj_typeof(kp) == PDF_NAME );
- ASSERT( pdf_obj_typeof(vp) == PDF_STRING );
-
- for (i = 0; i < pdf_array_length(cd->taintkeys); i++) {
- tk = pdf_get_array(cd->taintkeys, i);
- ASSERT( tk && pdf_obj_typeof(tk) == PDF_NAME );
- if (!strcmp(pdf_name_value(kp), pdf_name_value(tk))) {
- r = 1;
- break;
- }
- }
- if (r) {
- /* Check UTF-16BE BOM. */
- if (pdf_string_length(vp) >= 2 &&
- !memcmp(pdf_string_value(vp), "\xfe\xff", 2))
- r = 0;
- }
-
- return r;
-}
-
-static int
-modify_strings (pdf_obj *kp, pdf_obj *vp, void *dp)
-{
- int r = 0; /* continue */
- struct tounicode *cd = dp;
-
- ASSERT( pdf_obj_typeof(kp) == PDF_NAME );
-
- switch (pdf_obj_typeof(vp)) {
- case PDF_STRING:
- if (cd && cd->cmap_id >= 0 && cd->taintkeys) {
- CMap *cmap = CMap_cache_get(cd->cmap_id);
- if (need_reencode(kp, vp, cd))
- r = reencode_string(cmap, vp);
- } else if ((dpx_conf.compat_mode == dpx_mode_xdv_mode) && cd && cd->taintkeys) {
- if (need_reencode(kp, vp, cd))
- r = reencode_string_from_utf8_to_utf16be(vp);
- }
- if (r < 0) /* error occured... */
- WARN("Input string conversion (to UTF16BE) failed for %s...", pdf_name_value(kp));
- break;
- /* Array elements are also checked. */
- case PDF_ARRAY:
- {
- int i;
- for (i = 0; i < pdf_array_length(vp); i++) {
- pdf_obj *obj;
- obj = pdf_get_array(vp, i);
- r = modify_strings(kp, obj, dp);
- if (r < 0)
- break;
- }
- }
- break;
- case PDF_DICT:
- r = pdf_foreach_dict(vp, modify_strings, dp);
- break;
- case PDF_STREAM:
- r = pdf_foreach_dict(pdf_stream_dict(vp), modify_strings, dp);
- break;
- }
-
- return r;
-}
-
-static pdf_obj *
-parse_pdf_dict_with_tounicode (const char **pp, const char *endptr, struct tounicode *cd)
-{
- pdf_obj *dict;
-
- /* disable this test for XDV files, as we do UTF8 reencoding with no cmap */
- if ((dpx_conf.compat_mode != dpx_mode_xdv_mode) && cd->cmap_id < 0) {
- dict = parse_pdf_object_extended(pp, endptr, NULL, parse_pdf_reference, NULL);
- if (dict && !PDF_OBJ_DICTTYPE(dict)) {
- WARN("Dictionary type object expected but non-dictionary type found.");
- pdf_release_obj(dict);
- dict = NULL;
- }
- } else {
- /* :( */
- if (cd && cd->unescape_backslash) {
- dict = parse_pdf_tainted_dict(pp, endptr, parse_pdf_reference, NULL);
- } else {
- dict = parse_pdf_object_extended(pp, endptr, NULL, parse_pdf_reference, NULL);
- }
- if (dict) {
- if (!PDF_OBJ_DICTTYPE(dict)) {
- WARN("Dictionary type object expected but non-dictionary type found.");
- pdf_release_obj(dict);
- dict = NULL;
- } else {
- pdf_foreach_dict(dict, modify_strings, cd);
- }
- }
- }
-
- return dict;
-}
-
-static void
-set_rect_for_annot (struct spc_env *spe, pdf_rect *rect, transform_info ti)
-{
- pdf_coord cp, cp1, cp2, cp3, cp4;
-
- spc_get_current_point(spe, &cp);
-
- if (ti.flags & INFO_HAS_USER_BBOX) {
- cp1.x = cp.x + ti.bbox.llx;
- cp1.y = cp.y + ti.bbox.lly;
- cp2.x = cp.x + ti.bbox.urx;
- cp2.y = cp.y + ti.bbox.lly;
- cp3.x = cp.x + ti.bbox.urx;
- cp3.y = cp.y + ti.bbox.ury;
- cp4.x = cp.x + ti.bbox.llx;
- cp4.y = cp.y + ti.bbox.ury;
- } else {
- cp1.x = cp.x;
- cp1.y = cp.y - spe->mag * ti.depth;
- cp2.x = cp.x + spe->mag * ti.width;
- cp2.y = cp.y - spe->mag * ti.depth;
- cp3.x = cp.x + spe->mag * ti.width;
- cp3.y = cp.y + spe->mag * ti.height;
- cp4.x = cp.x;
- cp4.y = cp.y + spe->mag * ti.height;
- }
- pdf_dev_transform(&cp1, NULL);
- pdf_dev_transform(&cp2, NULL);
- pdf_dev_transform(&cp3, NULL);
- pdf_dev_transform(&cp4, NULL);
- rect->llx = min4(cp1.x, cp2.x, cp3.x, cp4.x);
- rect->lly = min4(cp1.y, cp2.y, cp3.y, cp4.y);
- rect->urx = max4(cp1.x, cp2.x, cp3.x, cp4.x);
- rect->ury = max4(cp1.y, cp2.y, cp3.y, cp4.y);
-}
-
-static int
-spc_handler_pdfm_annot (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- pdf_obj *annot_dict;
- pdf_rect rect;
- char *ident = NULL;
- transform_info ti;
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr[0] == '@') {
- ident = parse_opt_ident(&args->curptr, args->endptr);
- skip_white(&args->curptr, args->endptr);
- }
-
- transform_info_clear(&ti);
- if (spc_util_read_dimtrns(spe, &ti, args, 0) < 0) {
- if (ident)
- RELEASE(ident);
- return -1;
- }
-
- if ((ti.flags & INFO_HAS_USER_BBOX) &&
- ((ti.flags & INFO_HAS_WIDTH) || (ti.flags & INFO_HAS_HEIGHT))) {
- spc_warn(spe, "You can't specify both bbox and width/height.");
- if (ident)
- RELEASE(ident);
- return -1;
- }
-
- annot_dict = parse_pdf_dict_with_tounicode(&args->curptr, args->endptr, &sd->cd);
- if (!annot_dict) {
- spc_warn(spe, "Could not find dictionary object.");
- if (ident)
- RELEASE(ident);
- return -1;
- } else if (!PDF_OBJ_DICTTYPE(annot_dict)) {
- spc_warn(spe, "Invalid type: not dictionary object.");
- if (ident)
- RELEASE(ident);
- pdf_release_obj(annot_dict);
- return -1;
- }
-
- set_rect_for_annot(spe, &rect, ti);
-
- /* Order is important... */
- if (ident)
- spc_push_object(spe, ident, pdf_link_obj(annot_dict));
- /* Add this reference. */
- pdf_doc_add_annot(pdf_doc_current_page_number(), &rect, annot_dict, 1);
-
- if (ident) {
- RELEASE(ident);
- }
- pdf_release_obj(annot_dict);
-
- return 0;
-}
-
-/* NOTE: This can't have ident. See "Dvipdfm User's Manual".
- * 1 Jul. 2020: ident allowed (upon request)
- * Only first annotation can be accessed in line break cases.
- */
-static int
-spc_handler_pdfm_bann (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- char *ident = NULL;
- int error = 0;
-
- if (sd->annot_dict) {
- spc_warn(spe, "Can't begin an annotation when one is pending.");
- return -1;
- }
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr[0] == '@') {
- ident = parse_opt_ident(&args->curptr, args->endptr);
- skip_white(&args->curptr, args->endptr);
- }
-
- sd->annot_dict = parse_pdf_dict_with_tounicode(&args->curptr, args->endptr, &sd->cd);
- if (!sd->annot_dict) {
- spc_warn(spe, "Ignoring annotation with invalid dictionary.");
- if (ident)
- RELEASE(ident);
- return -1;
- } else if (!PDF_OBJ_DICTTYPE(sd->annot_dict)) {
- spc_warn(spe, "Invalid type: not a dictionary object.");
- pdf_release_obj(sd->annot_dict);
- sd->annot_dict = NULL;
- if (ident)
- RELEASE(ident);
- return -1;
- }
-
- error = spc_begin_annot(spe, pdf_link_obj(sd->annot_dict));
- if (ident) {
- spc_push_object(spe, ident, pdf_link_obj(sd->annot_dict));
- RELEASE(ident);
- }
-
- return error;
-}
-
-static int
-spc_handler_pdfm_eann (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- int error = 0;
-
- if (!sd->annot_dict) {
- spc_warn(spe, "Tried to end an annotation without starting one!");
- return -1;
- }
-
- error = spc_end_annot(spe);
-
- pdf_release_obj(sd->annot_dict);
- sd->annot_dict = NULL;
-
- return error;
-}
-
-/* For supporting \phantom within bann-eann.
- *
- * \special{pdf:xann width 50pt height 8pt depth 1pt}
- *
- * tells dvipdfmx to extend the current annotation rectangle
- * by the amount specified (witdh 50pt, height 8pt, depth 1pt)
- * This was introduced since in the following situation
- *
- * \special{pdf:bann ...}\phantom{Some texts}\special{pdf:eann}
- *
- * annotation is not created since there is no annotation
- * rectangle calculated due to no object being put.
- */
-static int
-spc_handler_pdfm_xann (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_rect rect;
- transform_info ti;
-
- if (!spc_is_tracking_boxes(spe)) {
- /* Silently ignore */
- args->curptr = args->endptr;
- return 0;
- }
-
- skip_white(&args->curptr, args->endptr);
-
- transform_info_clear(&ti);
- if (spc_util_read_dimtrns(spe, &ti, args, 0) < 0) {
- return -1;
- }
-
- if ((ti.flags & INFO_HAS_USER_BBOX) &&
- ((ti.flags & INFO_HAS_WIDTH) || (ti.flags & INFO_HAS_HEIGHT))) {
- spc_warn(spe, "You can't specify both bbox and width/height.");
- return -1;
- }
-
- set_rect_for_annot(spe, &rect, ti);
- pdf_doc_expand_box(&rect);
-
- return 0;
-}
-
-/* Color:.... */
-static int
-spc_handler_pdfm_bcolor (struct spc_env *spe, struct spc_arg *ap)
-{
- int error = 0;
- pdf_color fc, sc;
- pdf_color *pfc, *psc;
-
- skip_white(&ap->curptr, ap->endptr);
-
- pdf_color_get_current(&psc, &pfc);
- if (ap->curptr < ap->endptr &&
- (ap->curptr[0] == 'f' || ap->curptr[0] == 's')) {
- pdf_color_copycolor(&sc, psc);
- pdf_color_copycolor(&fc, pfc);
- while (!error && ap->curptr < ap->endptr) {
- if (ap->curptr <= ap->endptr + strlen("fill") &&
- !memcmp(ap->curptr, "fill", strlen("fill"))) {
- ap->curptr += strlen("fill");
- skip_white(&ap->curptr, ap->endptr);
- error = spc_util_read_pdfcolor(spe, &fc, ap, pfc);
- } else if (ap->curptr <= ap->endptr + strlen("stroke") &&
- !memcmp(ap->curptr, "stroke", strlen("stroke"))) {
- ap->curptr += strlen("stroke");
- skip_white(&ap->curptr, ap->endptr);
- error = spc_util_read_pdfcolor(spe, &sc, ap, psc);
- }
- skip_white(&ap->curptr, ap->endptr);
- }
- } else {
- error = spc_util_read_pdfcolor(spe, &fc, ap, pfc);
- if (!error) {
- if (ap->curptr < ap->endptr) {
- error = spc_util_read_pdfcolor(spe, &sc, ap, psc);
- } else {
- pdf_color_copycolor(&sc, &fc);
- }
- }
- }
-
- if (error) {
- spc_warn(spe, "Invalid color specification?");
- } else {
- skip_white(&ap->curptr, ap->endptr);
- pdf_color_push(&sc, &fc); /* save currentcolor */
- }
-
- return error;
-}
-
-/*
- * This special changes the current color without clearing the color stack.
- * It therefore differs from "color rgb 1 0 0".
- */
-static int
-spc_handler_pdfm_scolor (struct spc_env *spe, struct spc_arg *ap)
-{
- int error = 0;
- pdf_color fc, sc;
- pdf_color *pfc, *psc;
-
- skip_white(&ap->curptr, ap->endptr);
-
- pdf_color_get_current(&psc, &pfc);
- if (ap->curptr < ap->endptr &&
- (ap->curptr[0] == 'f' || ap->curptr[0] == 's')) {
- pdf_color_copycolor(&sc, psc);
- pdf_color_copycolor(&fc, pfc);
- while (!error && ap->curptr < ap->endptr) {
- if (ap->curptr <= ap->endptr + strlen("fill") &&
- !memcmp(ap->curptr, "fill", strlen("fill"))) {
- ap->curptr += strlen("fill");
- skip_white(&ap->curptr, ap->endptr);
- error = spc_util_read_pdfcolor(spe, &fc, ap, pfc);
- } else if (ap->curptr <= ap->endptr + strlen("stroke") &&
- !memcmp(ap->curptr, "stroke", strlen("stroke"))) {
- ap->curptr += strlen("stroke");
- skip_white(&ap->curptr, ap->endptr);
- error = spc_util_read_pdfcolor(spe, &sc, ap, psc);
- }
- skip_white(&ap->curptr, ap->endptr);
- }
- } else {
- error = spc_util_read_pdfcolor(spe, &fc, ap, pfc);
- if (!error) {
- if (ap->curptr < ap->endptr) {
- error = spc_util_read_pdfcolor(spe, &sc, ap, psc);
- } else {
- pdf_color_copycolor(&sc, &fc);
- }
- }
- }
-
- if (error) {
- spc_warn(spe, "Invalid color specification?");
- } else {
- pdf_color_set(&sc, &fc);
- }
-
- return error;
-}
-
-static int
-spc_handler_pdfm_ecolor (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_color_pop();
- return 0;
-}
-
-
-static int
-spc_handler_pdfm_btrans (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_tmatrix M;
- pdf_coord cp;
- transform_info ti;
-
- transform_info_clear(&ti);
- if (spc_util_read_dimtrns(spe, &ti, args, 0) < 0) {
- return -1;
- }
-
- /* btrans inside bcontent-econtent bug fix.
- * I don't know if this is the only place needs to be fixed...
- */
- spc_get_current_point(spe, &cp);
- /* Create transformation matrix */
- pdf_copymatrix(&M, &(ti.matrix));
- M.e += ((1.0 - M.a) * cp.x - M.c * cp.y);
- M.f += ((1.0 - M.d) * cp.y - M.b * cp.x);
-
- pdf_dev_gsave();
- pdf_dev_concat(&M);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_etrans (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_dev_grestore();
-
- /*
- * Unfortunately, the following line is necessary in case
- * of a color change inside of the save/restore pair.
- * (Font changes are automatically corrected by pdf_dev_grestore().)
- * Anything that was done there must be redone, so in effect,
- * we make no assumptions about what fonts. We act like we are
- * starting a new page.
- */
- pdf_dev_reset_color(0);
- pdf_dev_reset_xgstate(0);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_outline (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- pdf_obj *item_dict, *tmp;
- int level, is_open = -1;
- int current_depth;
-
- skip_white(&args->curptr, args->endptr);
-
- /*
- * pdf:outline is extended to support open/close feature
- *
- * pdf:outline 1 ... (as DVIPDFM)
- * pdf:outline [] 1 ... (open bookmark)
- * pdf:outline [-] 1 ... (closed bookmark)
- */
- if (args->curptr+3 < args->endptr && *args->curptr == '[') {
- args->curptr++;
- if (*args->curptr == '-') {
- args->curptr++;
- } else {
- is_open = 1;
- }
- args->curptr++;
- }
- skip_white(&args->curptr, args->endptr);
-
- tmp = parse_pdf_object(&args->curptr, args->endptr, NULL);
- if (!tmp) {
- spc_warn(spe, "Missing number for outline item depth.");
- return -1;
- } else if (!PDF_OBJ_NUMBERTYPE(tmp)) {
- pdf_release_obj(tmp);
- spc_warn(spe, "Expecting number for outline item depth.");
- return -1;
- }
-
- item_dict = NULL;
-
- level = (int) pdf_number_value(tmp);
- pdf_release_obj(tmp);
-
- /* What is this? Starting at level 3 and can go down to level 1?
- *
- * Here is the original comment:
- * Make sure we know where the starting level is
- *
- * NOTE: added
- * We need this for converting pages from 3rd to... :(
- */
- sd->lowest_level = MIN(sd->lowest_level, level);
-
- level += 1 - sd->lowest_level;
-
- item_dict = parse_pdf_dict_with_tounicode(&args->curptr, args->endptr, &sd->cd);
- if (!item_dict) {
- spc_warn(spe, "Ignoring invalid dictionary.");
- return -1;
- }
- current_depth = pdf_doc_bookmarks_depth();
- if (current_depth > level) {
- while (current_depth-- > level)
- pdf_doc_bookmarks_up();
- } else if (current_depth < level) {
- while (current_depth++ < level)
- pdf_doc_bookmarks_down();
- }
-
- pdf_doc_bookmarks_add(item_dict, is_open);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_article (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- char *ident;
- pdf_obj *info_dict;
-
- skip_white (&args->curptr, args->endptr);
-
- ident = parse_opt_ident(&args->curptr, args->endptr);
- if (!ident) {
- spc_warn(spe, "Article name expected but not found.");
- return -1;
- }
-
- info_dict = parse_pdf_dict_with_tounicode(&args->curptr, args->endptr, &sd->cd);
- if (!info_dict) {
- spc_warn(spe, "Ignoring article with invalid info dictionary.");
- RELEASE(ident);
- return -1;
- }
-
- pdf_doc_begin_article(ident, pdf_link_obj(info_dict));
- spc_push_object(spe, ident, info_dict);
- RELEASE(ident);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_bead (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- pdf_obj *article;
- pdf_obj *article_info;
- char *article_name;
- pdf_rect rect;
- int page_no;
- transform_info ti;
-
- skip_white(&args->curptr, args->endptr);
-
- if (args->curptr[0] != '@') {
- spc_warn(spe, "Article identifier expected but not found.");
- return -1;
- }
-
- article_name = parse_opt_ident(&args->curptr, args->endptr);
- if (!article_name) {
- spc_warn(spe, "Article reference expected but not found.");
- return -1;
- }
-
- /* If okay so far, try to get a bounding box */
- transform_info_clear(&ti);
- if (spc_util_read_dimtrns(spe, &ti, args, 0) < 0) {
- RELEASE(article_name);
- return -1;
- }
-
- if ((ti.flags & INFO_HAS_USER_BBOX) &&
- ((ti.flags & INFO_HAS_WIDTH) || (ti.flags & INFO_HAS_HEIGHT))) {
- spc_warn(spe, "You can't specify both bbox and width/height.");
- RELEASE(article_name);
- return -1;
- }
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr[0] != '<') {
- article_info = pdf_new_dict();
- } else {
- article_info = parse_pdf_dict_with_tounicode(&args->curptr, args->endptr, &sd->cd);
- if (!article_info) {
- spc_warn(spe, "Error in reading dictionary.");
- RELEASE(article_name);
- return -1;
- }
- }
-
- /* Does this article exist yet */
- article = spc_lookup_object(article_name);
- if (article) {
- pdf_merge_dict (article, article_info);
- pdf_release_obj(article_info);
- } else {
- pdf_doc_begin_article(article_name, pdf_link_obj(article_info));
- spc_push_object(spe, article_name, article_info);
- }
- page_no = pdf_doc_current_page_number();
- set_rect_for_annot(spe, &rect, ti);
- pdf_doc_add_bead(article_name, NULL, page_no, &rect);
-
- RELEASE(article_name);
- return 0;
-}
-
-static int
-spc_handler_pdfm_image (struct spc_env *spe, struct spc_arg *args)
-{
- int xobj_id;
- char *ident = NULL;
- pdf_obj *fspec;
- transform_info ti;
- load_options options = {1, 0, NULL};
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr[0] == '@') {
- ident = parse_opt_ident(&args->curptr, args->endptr);
- skip_white(&args->curptr, args->endptr);
- }
-
- /* 2015/12/29
- * There should not be "page" and "pagebox" in read_dimtrns().
- * It is for reading "dimensions" and "transformations" and "page" is
- * completely unrelated.
- */
- transform_info_clear(&ti);
- if (spc_util_read_blahblah(spe, &ti,
- &options.page_no, &options.bbox_type, args) < 0) {
- spc_warn(spe, "Reading option field in pdf:image failed.");
- if (ident)
- RELEASE(ident);
- return -1;
- }
-
- skip_white(&args->curptr, args->endptr);
- fspec = parse_pdf_object(&args->curptr, args->endptr, NULL);
- if (!fspec) {
- spc_warn(spe, "Missing filename string for pdf:image.");
- if (ident)
- RELEASE(ident);
- return -1;
- } else if (!PDF_OBJ_STRINGTYPE(fspec)) {
- spc_warn(spe, "Missing filename string for pdf:image.");
- pdf_release_obj(fspec);
- if (ident)
- RELEASE(ident);
- return -1;
- }
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr < args->endptr) {
- options.dict = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- }
-
- xobj_id = pdf_ximage_load_image(ident, pdf_string_value(fspec), options);
-
- if (xobj_id < 0) {
- spc_warn(spe, "Could not find image resource...");
- pdf_release_obj(fspec);
- if (ident)
- RELEASE(ident);
- return -1;
- }
-
- if (!(ti.flags & INFO_DO_HIDE)) {
- spc_put_image(spe, xobj_id, &ti, spe->x_user, spe->y_user);
- }
-
- if (ident) {
- if ((dpx_conf.compat_mode == dpx_mode_compat_mode) &&
- pdf_ximage_get_subtype(xobj_id) == PDF_XOBJECT_TYPE_IMAGE)
- pdf_ximage_set_attr(xobj_id, 1, 1, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0);
- RELEASE(ident);
- }
-
- pdf_release_obj(fspec);
-
- return 0;
-}
-
-/* Use do_names instead. */
-static int
-spc_handler_pdfm_dest (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_obj *name, *array;
-
- skip_white(&args->curptr, args->endptr);
-
- name = parse_pdf_object(&args->curptr, args->endptr, NULL);
- if (!name) {
- spc_warn(spe, "PDF string expected for destination name but not found.");
- return -1;
- } else if (!PDF_OBJ_STRINGTYPE(name)) {
- spc_warn(spe, "PDF string expected for destination name but invalid type.");
- pdf_release_obj(name);
- return -1;
- }
-
-#if 0
- if ((dpx_conf.compat_mode == dpx_mode_xdv_mode) && maybe_reencode_utf8(name) < 0)
- WARN("Failed to convert input string to UTF16...");
-#endif
-
- array = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (!array) {
- spc_warn(spe, "No destination specified for pdf:dest.");
- pdf_release_obj(name);
- return -1;
- } else if (!PDF_OBJ_ARRAYTYPE(array)) {
- spc_warn(spe, "Destination not specified as an array object!");
- pdf_release_obj(name);
- pdf_release_obj(array);
- return -1;
- }
-
- pdf_doc_add_names("Dests",
- pdf_string_value (name),
- pdf_string_length(name),
- array);
- pdf_release_obj(name);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_names (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_obj *category, *key, *value, *tmp;
- int i, size;
-
- category = parse_pdf_object(&args->curptr, args->endptr, NULL);
- if (!category) {
- spc_warn(spe, "PDF name expected but not found.");
- return -1;
- } else if (!PDF_OBJ_NAMETYPE(category)) {
- spc_warn(spe, "PDF name expected but not found.");
- pdf_release_obj(category);
- return -1;
- }
-
- tmp = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (!tmp) {
- spc_warn(spe, "PDF object expected but not found.");
- pdf_release_obj(category);
- return -1;
- } else if (PDF_OBJ_ARRAYTYPE(tmp)) {
- size = pdf_array_length(tmp);
- if (size % 2 != 0) {
- spc_warn(spe, "Array size not multiple of 2 for pdf:names.");
- pdf_release_obj(category);
- pdf_release_obj(tmp);
- return -1;
- }
-
- for (i = 0; i < size / 2; i++) {
- key = pdf_get_array(tmp, 2 * i);
- value = pdf_get_array(tmp, 2 * i + 1);
- if (!PDF_OBJ_STRINGTYPE(key)) {
- spc_warn(spe, "Name tree key must be string.");
- pdf_release_obj(category);
- pdf_release_obj(tmp);
- return -1;
- } else if (pdf_doc_add_names(pdf_name_value(category),
- pdf_string_value (key),
- pdf_string_length(key),
- pdf_link_obj(value)) < 0) {
- spc_warn(spe, "Failed to add Name tree entry...");
- pdf_release_obj(category);
- pdf_release_obj(tmp);
- return -1;
- }
- }
- pdf_release_obj(tmp);
- } else if (PDF_OBJ_STRINGTYPE(tmp)) {
- key = tmp;
- value = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (!value) {
- pdf_release_obj(category);
- pdf_release_obj(key);
- spc_warn(spe, "PDF object expected but not found.");
- return -1;
- }
- if (pdf_doc_add_names(pdf_name_value(category),
- pdf_string_value (key),
- pdf_string_length(key),
- value) < 0) {
- spc_warn(spe, "Failed to add Name tree entry...");
- pdf_release_obj(category);
- pdf_release_obj(key);
- return -1;
- }
- pdf_release_obj(key);
- } else {
- pdf_release_obj(tmp);
- pdf_release_obj(category);
- spc_warn(spe, "Invalid object type for pdf:names.");
- return -1;
- }
- pdf_release_obj(category);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_docinfo (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- pdf_obj *docinfo, *dict;
-
- dict = parse_pdf_dict_with_tounicode(&args->curptr, args->endptr, &sd->cd);
- if (!dict) {
- spc_warn(spe, "Dictionary object expected but not found.");
- return -1;
- }
-
- docinfo = pdf_doc_docinfo();
- pdf_merge_dict(docinfo, dict);
- pdf_release_obj(dict);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_docview (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- pdf_obj *catalog, *dict;
- pdf_obj *pref_old, *pref_add;
-
- dict = parse_pdf_dict_with_tounicode(&args->curptr, args->endptr, &sd->cd);
- if (!dict) {
- spc_warn(spe, "Dictionary object expected but not found.");
- return -1;
- }
-
- catalog = pdf_doc_catalog();
- /* Avoid overriding whole ViewerPreferences */
- pref_old = pdf_lookup_dict(catalog, "ViewerPreferences");
- pref_add = pdf_lookup_dict(dict, "ViewerPreferences");
- if (pref_old && pref_add) {
- pdf_merge_dict (pref_old, pref_add);
- pdf_remove_dict(dict, "ViewerPreferences");
- }
- pdf_merge_dict (catalog, dict);
- pdf_release_obj(dict);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_close (struct spc_env *spe, struct spc_arg *args)
-{
- char *ident;
-
- skip_white(&args->curptr, args->endptr);
- ident = parse_opt_ident(&args->curptr, args->endptr);
- if (ident) {
- spc_flush_object(spe, ident);
- RELEASE(ident);
- } else { /* Close all? */
- spc_warn(spe, "pdf:close without an argument no longer supported!");
- spc_clear_objects(spe);
- }
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_object (struct spc_env *spe, struct spc_arg *args)
-{
- char *ident;
- pdf_obj *object;
-
- skip_white(&args->curptr, args->endptr);
- ident = parse_opt_ident(&args->curptr, args->endptr);
- if (!ident) {
- spc_warn(spe, "Could not find a object identifier.");
- return -1;
- }
-
- object = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (!object) {
- spc_warn(spe, "Could not find an object definition for \"%s\".", ident);
- RELEASE(ident);
- return -1;
- } else {
- spc_push_object(spe, ident, object);
- }
- RELEASE(ident);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_content (struct spc_env *spe, struct spc_arg *args)
-{
- int len = 0;
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr < args->endptr) {
- pdf_tmatrix M;
- pdf_coord cp;
-
- spc_get_current_point(spe, &cp);
- pdf_setmatrix(&M, 1.0, 0.0, 0.0, 1.0, cp.x, cp.y);
- work_buffer[len++] = ' ';
- work_buffer[len++] = 'q';
- work_buffer[len++] = ' ';
- len += pdf_sprint_matrix(work_buffer + len, &M);
- work_buffer[len++] = ' ';
- work_buffer[len++] = 'c';
- work_buffer[len++] = 'm';
- work_buffer[len++] = ' ';
-
- pdf_doc_add_page_content(work_buffer, len); /* op: q cm */
- len = (int) (args->endptr - args->curptr);
- pdf_doc_add_page_content(args->curptr, len); /* op: ANY */
- pdf_doc_add_page_content(" Q", 2); /* op: Q */
- }
- args->curptr = args->endptr;
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_literal (struct spc_env *spe, struct spc_arg *args)
-{
- int direct = 0;
-
- skip_white(&args->curptr, args->endptr);
- while (args->curptr < args->endptr) {
- if (args->curptr + 7 <= args->endptr &&
- !strncmp(args->curptr, "reverse", 7)) {
- args->curptr += 7;
- WARN("The special \"pdf:literal reverse ...\" is no longer supported.\nIgnore the \"reverse\" option.");
- } else if (args->curptr + 6 <= args->endptr &&
- !strncmp(args->curptr, "direct", 6)) {
- direct = 1;
- args->curptr += 6;
- } else {
- break;
- }
- skip_white(&args->curptr, args->endptr);
- }
-
- if (args->curptr < args->endptr) {
- pdf_tmatrix M;
- pdf_coord cp;
-
- spc_get_current_point(spe, &cp);
- if (!direct) {
- M.a = M.d = 1.0; M.b = M.c = 0.0;
- M.e = cp.x; M.f = cp.y;
- pdf_dev_concat(&M);
- }
- pdf_doc_add_page_content(" ", 1); /* op: */
- pdf_doc_add_page_content(args->curptr, (int) (args->endptr - args->curptr)); /* op: ANY */
- if (!direct) {
- M.e = -cp.x; M.f = -cp.y;
- pdf_dev_concat(&M);
- }
- }
-
- args->curptr = args->endptr;
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_bcontent (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_tmatrix M;
- double xpos, ypos;
-
- pdf_dev_gsave();
- spc_get_coord(spe, &xpos, &ypos);
- pdf_setmatrix(&M, 1.0, 0.0, 0.0, 1.0, spe->x_user - xpos, spe->y_user - ypos);
- pdf_dev_concat(&M);
- spc_push_coord(spe, spe->x_user, spe->y_user);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_econtent (struct spc_env *spe, struct spc_arg *args)
-{
- spc_pop_coord(spe);
- pdf_dev_grestore();
- pdf_dev_reset_color(0);
- pdf_dev_reset_xgstate(0);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_code (struct spc_env *spe, struct spc_arg *args)
-{
- skip_white(&args->curptr, args->endptr);
-
- if (args->curptr < args->endptr) {
- pdf_doc_add_page_content(" ", 1); /* op: */
- pdf_doc_add_page_content(args->curptr, (int) (args->endptr - args->curptr)); /* op: ANY */
- args->curptr = args->endptr;
- }
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_do_nothing (struct spc_env *spe, struct spc_arg *args)
-{
- args->curptr = args->endptr;
- return 0;
-}
-
-#define STRING_STREAM 0
-#define FILE_STREAM 1
-
-static int
-spc_handler_pdfm_stream_with_type (struct spc_env *spe, struct spc_arg *args, int type)
-{
- pdf_obj *fstream;
- int nb_read;
- char *ident, *instring, *fullname;
- pdf_obj *tmp;
- FILE *fp;
-
- skip_white(&args->curptr, args->endptr);
-
- ident = parse_opt_ident(&args->curptr, args->endptr);
- if (!ident) {
- spc_warn(spe, "Missing objname for pdf:(f)stream.");
- return -1;
- }
-
- skip_white(&args->curptr, args->endptr);
-
- tmp = parse_pdf_object(&args->curptr, args->endptr, NULL);
- if (!tmp) {
- spc_warn(spe, "Missing input string for pdf:(f)stream.");
- RELEASE(ident);
- return -1;
- } else if (!PDF_OBJ_STRINGTYPE(tmp)) {
- spc_warn(spe, "Invalid type of input string for pdf:(f)stream.");
- pdf_release_obj(tmp);
- RELEASE(ident);
- return -1;
- }
-
- instring = pdf_string_value(tmp);
-
- switch (type) {
- case FILE_STREAM:
- if (!instring) {
- spc_warn(spe, "Missing filename for pdf:fstream.");
- pdf_release_obj(tmp);
- RELEASE(ident);
- return -1;
- }
- fullname = kpse_find_pict(instring);
- if (!fullname) {
- spc_warn(spe, "File \"%s\" not found.", instring);
- pdf_release_obj(tmp);
- RELEASE(ident);
- return -1;
- }
- fp = DPXFOPEN(fullname, DPX_RES_TYPE_BINARY);
- if (!fp) {
- spc_warn(spe, "Could not open file: %s", instring);
- pdf_release_obj(tmp);
- RELEASE(ident);
- RELEASE(fullname);
- return -1;
- }
- fstream = pdf_new_stream(STREAM_COMPRESS);
- while ((nb_read =
- fread(work_buffer, sizeof(char), WORK_BUFFER_SIZE, fp)) > 0)
- pdf_add_stream(fstream, work_buffer, nb_read);
- MFCLOSE(fp);
- RELEASE(fullname);
- break;
- case STRING_STREAM:
- fstream = pdf_new_stream(STREAM_COMPRESS);
- pdf_add_stream(fstream, pdf_string_value(tmp), pdf_string_length(tmp));
- break;
- default:
- pdf_release_obj(tmp);
- RELEASE(ident);
- return -1;
- }
- pdf_release_obj(tmp);
-
- /*
- * Optional dict.
- *
- * TODO: check Length, Filter...
- */
- skip_white(&args->curptr, args->endptr);
-
- if (args->curptr[0] == '<') {
- pdf_obj *stream_dict;
-
- stream_dict = pdf_stream_dict(fstream);
-
- tmp = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (!tmp) {
- spc_warn(spe, "Parsing dictionary failed.");
- pdf_release_obj(fstream);
- RELEASE(ident);
- return -1;
- } else if (!PDF_OBJ_DICTTYPE(tmp)) {
- spc_warn(spe, "Expecting dictionary type object but non-dictionary type found.");
- pdf_release_obj(fstream);
- pdf_release_obj(tmp);
- RELEASE(ident);
- return -1;
- }
- if (pdf_lookup_dict(tmp, "Length")) {
- pdf_remove_dict(tmp, "Length");
- } else if (pdf_lookup_dict(tmp, "Filter")) {
- pdf_remove_dict(tmp, "Filter");
- }
- pdf_merge_dict(stream_dict, tmp);
- pdf_release_obj(tmp);
- }
-
- /* Users should explicitly close this. */
- spc_push_object(spe, ident, fstream);
- RELEASE(ident);
-
- return 0;
-}
-
-/*
- * STREAM: Create a PDF stream object from an input string.
- *
- * pdf: stream @objname (input_string) [PDF_DICT]
- */
-static int
-spc_handler_pdfm_stream (struct spc_env *spe, struct spc_arg *args)
-{
- return spc_handler_pdfm_stream_with_type (spe, args, STRING_STREAM);
-}
-
-/*
- * FSTREAM: Create a PDF stream object from an existing file.
- *
- * pdf: fstream @objname (filename) [PDF_DICT]
- */
-static int
-spc_handler_pdfm_fstream (struct spc_env *spe, struct spc_arg *args)
-{
- return spc_handler_pdfm_stream_with_type (spe, args, FILE_STREAM);
-}
-
-/* Grab page content as follows:
- *
- * Reference point = (x_user, y_user)
- *
- * Case 1. \special{pdf:bxobj @obj width WD height HT depth DP}
- *
- * Grab the box with the lower-left corner (x_user, y_user-DP)
- * and the upper right corner (x_user+WD, y_user+HT).
- *
- * Case 2. \special{pdf:bxobj @obj bbox LLX LLY URX, URY}
- *
- * Grab the box with the lower-left corner (x_user+LLX, y_user+LLY)
- * and the upper right corner (x_user+URX, y_user+URY).
- *
- * Note that scale, xscale, yscale, xoffset, yoffset options are ignored.
- */
-static int
-spc_handler_pdfm_bform (struct spc_env *spe, struct spc_arg *args)
-{
- int error;
- char *ident;
- pdf_rect cropbox;
- pdf_coord cp;
- transform_info ti;
-
- skip_white(&args->curptr, args->endptr);
-
- ident = parse_opt_ident(&args->curptr, args->endptr);
- if (!ident) {
- spc_warn(spe, "A form XObject must have name.");
- return -1;
- }
-
- transform_info_clear(&ti);
- if (spc_util_read_dimtrns(spe, &ti, args, 0) < 0) {
- RELEASE(ident);
- return -1;
- }
-
- /* A XForm with zero dimension results in a non-invertible transformation
- * matrix. And it may result in unpredictable behaviour. It might be an
- * error in Acrobat. Bounding box with zero dimension may cause division
- * by zero.
- */
- if (ti.flags & INFO_HAS_USER_BBOX) {
- if (ti.bbox.urx - ti.bbox.llx == 0.0 ||
- ti.bbox.ury - ti.bbox.lly == 0.0) {
- spc_warn(spe, "Bounding box has a zero dimension.");
- RELEASE(ident);
- return -1;
- }
- cropbox.llx = ti.bbox.llx;
- cropbox.lly = ti.bbox.lly;
- cropbox.urx = ti.bbox.urx;
- cropbox.ury = ti.bbox.ury;
- } else {
- if (ti.width == 0.0 ||
- ti.depth + ti.height == 0.0) {
- spc_warn(spe, "Bounding box has a zero dimension.");
- RELEASE(ident);
- return -1;
- }
- cropbox.llx = 0.0;
- cropbox.lly = -ti.depth;
- cropbox.urx = ti.width;
- cropbox.ury = ti.height;
- }
-
- spc_get_current_point(spe, &cp);
- error = spc_begin_form(spe, ident, cp, &cropbox);
-
- if (error)
- spc_warn(spe, "Couldn't start form object.");
-
- RELEASE(ident);
-
- return error;
-}
-
-/* An extra dictionary after exobj must be merged to the form dictionary,
- * not resource dictionary.
- * Please use pdf:put @resources (before pdf:exobj) instead.
- */
-static int
-spc_handler_pdfm_eform (struct spc_env *spe, struct spc_arg *args)
-{
- int error;
- pdf_obj *attrib = NULL;
- struct spc_pdf_ *sd = &_pdf_stat;
-
- skip_white(&args->curptr, args->endptr);
-
- if (args->curptr < args->endptr) {
- attrib = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (attrib && !PDF_OBJ_DICTTYPE(attrib)) {
- pdf_release_obj(attrib);
- attrib = NULL;
- }
- }
- /* pageresources here too */
- if (sd->pageresources) {
- pdf_foreach_dict(sd->pageresources, forallresourcecategory, NULL);
- }
- error = spc_end_form(spe, attrib);
-
- return error;
-}
-
-/* Saved XObjects can be used as follows:
- *
- * Reference point = (x_user, y_user)
- *
- * Case 1. \special{pdf:uxobj @obj width WD height HT depth DP}
- *
- * Scale the XObject to fit in the box
- * [x_user, y_user-DP, x_user+WD, y_user+HT].
- *
- * Case 2. \special{pdf:uxobj @obj xscale XS yscale YS}
- *
- * Scale the XObject with XS and YS. Note that width and xscale
- * or height and yscale cannot be used together.
- *
- * Case 3. \special{pdf:bxobj @obj bbox LLX LLY URX, URY}
- *
- * Scale the XObject to fit in the box
- * [x_user+LLX, y_user+LLY, x_user+URX, y_user+URY].
- *
- * Note that xoffset and yoffset moves the reference point where the
- * lower-left corner of the XObject will be put.
- */
-static int
-spc_handler_pdfm_uxobj (struct spc_env *spe, struct spc_arg *args)
-{
- int xobj_id;
- char *ident;
- transform_info ti;
-
- skip_white(&args->curptr, args->endptr);
-
- ident = parse_opt_ident(&args->curptr, args->endptr);
- if (!ident) {
- spc_warn(spe, "No object identifier given.");
- return -1;
- }
-
- transform_info_clear(&ti);
- if (args->curptr < args->endptr) {
- if (spc_util_read_dimtrns(spe, &ti, args, 0) < 0) {
- RELEASE(ident);
- return -1;
- }
- }
-
- xobj_id = pdf_ximage_findresource(ident);
- if (xobj_id < 0) {
- xobj_id = pdf_ximage_reserve(ident);
- }
-
- spc_put_image(spe, xobj_id, &ti, spe->x_user, spe->y_user);
- RELEASE(ident);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_link (struct spc_env *spe, struct spc_arg *args)
-{
- return spc_resume_annot(spe);
-}
-
-static int
-spc_handler_pdfm_nolink (struct spc_env *spe, struct spc_arg *args)
-{
- return spc_suspend_annot(spe);
-}
-
-
-
-/* Handled at BOP */
-static int
-spc_handler_pdfm_pagesize (struct spc_env *spe, struct spc_arg *args)
-{
- args->curptr = args->endptr;
-
- return 0;
-}
-
-/* Please remove this.
- * This should be handled before processing pages!
- */
-static int
-spc_handler_pdfm_bgcolor (struct spc_env *spe, struct spc_arg *args)
-{
- int error;
- pdf_color colorspec;
-
- error = spc_util_read_pdfcolor(spe, &colorspec, args, NULL);
- if (error)
- spc_warn(spe, "No valid color specified?");
- else {
- pdf_doc_set_bgcolor(&colorspec);
- }
-
- return error;
-}
-
-#define THEBUFFLENGTH 1024
-static int
-spc_handler_pdfm_mapline (struct spc_env *spe, struct spc_arg *ap)
-{
- fontmap_rec *mrec;
- char *map_name, opchr;
- int error = 0;
- static char buffer[THEBUFFLENGTH];
- const char *p;
- char *q;
- int count;
-
- skip_white(&ap->curptr, ap->endptr);
- if (ap->curptr >= ap->endptr) {
- spc_warn(spe, "Empty mapline special?");
- return -1;
- }
-
- opchr = ap->curptr[0];
- if (opchr == '-' || opchr == '+')
- ap->curptr++;
-
- skip_white(&ap->curptr, ap->endptr);
-
- switch (opchr) {
- case '-':
- map_name = parse_ident(&ap->curptr, ap->endptr);
- if (map_name) {
- pdf_remove_fontmap_record(map_name);
- RELEASE(map_name);
- } else {
- spc_warn(spe, "Invalid fontmap line: Missing TFM name.");
- error = -1;
- }
- break;
- default:
- p = ap->curptr;
- q = buffer;
- count = 0;
- while (p < ap->endptr && count < THEBUFFLENGTH - 1) {
- *q++ = *p++;
- count++;
- }
- if (count == THEBUFFLENGTH - 1) {
- spc_warn(spe, "Invalid fontmap line: Too long a line.");
- *q = 0;
- return -1;
- }
- *q = '\0';
- mrec = NEW(1, fontmap_rec);
- pdf_init_fontmap_record(mrec);
- error = pdf_read_fontmap_line(mrec, buffer, (int) (ap->endptr - ap->curptr), is_pdfm_mapline(buffer));
- if (error)
- spc_warn(spe, "Invalid fontmap line.");
- else if (opchr == '+')
- pdf_append_fontmap_record(mrec->map_name, mrec);
- else
- pdf_insert_fontmap_record(mrec->map_name, mrec);
- pdf_clear_fontmap_record(mrec);
- RELEASE(mrec);
- break;
- }
- if (!error)
- ap->curptr = ap->endptr;
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_mapfile (struct spc_env *spe, struct spc_arg *args)
-{
- char *mapfile;
- int mode, error = 0;
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr >= args->endptr)
- return 0;
-
- switch (args->curptr[0]) {
- case '-':
- mode = FONTMAP_RMODE_REMOVE;
- args->curptr++;
- break;
- case '+':
- mode = FONTMAP_RMODE_APPEND;
- args->curptr++;
- break;
- default:
- mode = FONTMAP_RMODE_REPLACE;
- break;
- }
-
- mapfile = parse_val_ident(&args->curptr, args->endptr);
- if (!mapfile) {
- spc_warn(spe, "No fontmap file specified.");
- return -1;
- } else {
- error = pdf_load_fontmap_file(mapfile, mode);
- }
- RELEASE(mapfile);
-
- return error;
-}
-
-
-static int
-spc_handler_pdfm_tounicode (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- char *cmap_name;
- pdf_obj *taint_keys;
-
- /* First clear */
- sd->cd.cmap_id = -1;
- sd->cd.unescape_backslash = 0;
-
- skip_white(&args->curptr, args->endptr);
- if (args->curptr >= args->endptr) {
- spc_warn(spe, "Missing CMap name for pdf:tounicode.");
- return -1;
- }
-
- /* _FIXME_
- * Any valid char allowed for PDF name object should be allowed here.
- * The argument to this special should be a PDF name obejct.
- * But it's too late to change this special.
- */
- cmap_name = parse_ident(&args->curptr, args->endptr);
- if (!cmap_name) {
- spc_warn(spe, "Missing ToUnicode mapping name...");
- return -1;
- }
-
- sd->cd.cmap_id = CMap_cache_find(cmap_name);
- if (sd->cd.cmap_id < 0) {
- spc_warn(spe, "Failed to load ToUnicode mapping: %s", cmap_name);
- RELEASE(cmap_name);
- return -1;
- }
-
- /* Shift-JIS like encoding may contain backslash in 2nd byte.
- * WARNING: This will add nasty extension to PDF parser.
- */
- if (sd->cd.cmap_id >= 0) {
- if (strstr(cmap_name, "RKSJ") ||
- strstr(cmap_name, "B5") ||
- strstr(cmap_name, "GBK") ||
- strstr(cmap_name, "KSC"))
- sd->cd.unescape_backslash = 1;
- }
- RELEASE(cmap_name);
-
- /* Additional "taint key"
- * An array of PDF name objects can be supplied optionally.
- * Dictionary entries specified by this option will be added to the list
- * of dictionary keys to be treated as the target of "ToUnicode" conversion.
- */
- skip_white(&args->curptr, args->endptr);
- if (args->curptr < args->endptr) {
- taint_keys = parse_pdf_object(&args->curptr, args->endptr, NULL);
- if (taint_keys) {
- if (PDF_OBJ_ARRAYTYPE(taint_keys)) {
- int i;
- for (i = 0; i < pdf_array_length(taint_keys); i++) {
- pdf_obj *key;
-
- key = pdf_get_array(taint_keys, i);
- if (PDF_OBJ_NAMETYPE(key))
- pdf_add_array(sd->cd.taintkeys, pdf_link_obj(key));
- else {
- spc_warn(spe, "Invalid argument specified in pdf:tounicode special.");
- }
- }
- } else {
- spc_warn(spe, "Invalid argument specified in pdf:unicode special.");
- }
- pdf_release_obj(taint_keys);
- }
- }
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_pageresources (struct spc_env *spe, struct spc_arg *args)
-{
- struct spc_pdf_ *sd = &_pdf_stat;
- pdf_obj *dict;
-
- dict = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (!dict) {
- spc_warn(spe, "Dictionary object expected but not found.");
- return -1;
- }
-
- if (sd->pageresources)
- pdf_release_obj(sd->pageresources);
- sd->pageresources = dict;
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_bxgstate (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_obj *obj;
-
- skip_white(&args->curptr, args->endptr);
- obj = parse_pdf_object_extended(&args->curptr, args->endptr, NULL, parse_pdf_reference, spe);
- if (!obj) {
- spc_warn(spe, "Could not find an object definition.");
- return -1;
- } else if (!PDF_OBJ_DICTTYPE(obj)) {
- spc_warn(spe, "Parsed object for ExtGState not a dictionary object!");
- pdf_release_obj(obj);
- return -1;
- }
- pdf_dev_xgstate_push(obj);
-
- skip_white(&args->curptr, args->endptr);
-
- return 0;
-}
-
-static int
-spc_handler_pdfm_exgstate (struct spc_env *spe, struct spc_arg *args)
-{
- pdf_dev_xgstate_pop();
- skip_white(&args->curptr, args->endptr);
- return 0;
-}
-
-static int
-spc_handler_pdft_compat_page (struct spc_env *spe, struct spc_arg *args)
-{
- skip_white(&args->curptr, args->endptr);
- if (args->curptr < args->endptr) {
- pdf_doc_add_page_content(" ", 1); /* op: */
- pdf_doc_add_page_content(args->curptr, (int) (args->endptr - args->curptr)); /* op: ANY */
- }
-
- args->curptr = args->endptr;
-
- return 0;
-}
-
-static struct spc_handler pdfm_handlers[] = {
- {"annotation", spc_handler_pdfm_annot},
- {"annotate", spc_handler_pdfm_annot},
- {"annot", spc_handler_pdfm_annot},
- {"ann", spc_handler_pdfm_annot},
-
- {"outline", spc_handler_pdfm_outline},
- {"out", spc_handler_pdfm_outline},
-
- {"article", spc_handler_pdfm_article},
- {"art", spc_handler_pdfm_article},
-
- {"bead", spc_handler_pdfm_bead},
- {"thread", spc_handler_pdfm_bead},
-
- {"destination", spc_handler_pdfm_dest},
- {"dest", spc_handler_pdfm_dest},
-
-
- {"object", spc_handler_pdfm_object},
- {"obj", spc_handler_pdfm_object},
-
-
- {"docinfo", spc_handler_pdfm_docinfo},
- {"docview", spc_handler_pdfm_docview},
-
- {"content", spc_handler_pdfm_content},
- {"put", spc_handler_pdfm_put},
- {"close", spc_handler_pdfm_close},
- {"bop", spc_handler_pdfm_bop},
- {"eop", spc_handler_pdfm_eop},
-
- {"image", spc_handler_pdfm_image},
- {"img", spc_handler_pdfm_image},
- {"epdf", spc_handler_pdfm_image},
-
- {"link", spc_handler_pdfm_link},
- {"nolink", spc_handler_pdfm_nolink},
-
- {"begincolor", spc_handler_pdfm_bcolor},
- {"bcolor", spc_handler_pdfm_bcolor},
- {"bc", spc_handler_pdfm_bcolor},
-
- {"setcolor", spc_handler_pdfm_scolor},
- {"scolor", spc_handler_pdfm_scolor},
- {"sc", spc_handler_pdfm_scolor},
-
- {"endcolor", spc_handler_pdfm_ecolor},
- {"ecolor", spc_handler_pdfm_ecolor},
- {"ec", spc_handler_pdfm_ecolor},
-
- {"begingray", spc_handler_pdfm_bcolor},
- {"bgray", spc_handler_pdfm_bcolor},
- {"bg", spc_handler_pdfm_bcolor},
-
- {"endgray", spc_handler_pdfm_ecolor},
- {"egray", spc_handler_pdfm_ecolor},
- {"eg", spc_handler_pdfm_ecolor},
-
- {"bgcolor", spc_handler_pdfm_bgcolor},
- {"bgc", spc_handler_pdfm_bgcolor},
- {"bbc", spc_handler_pdfm_bgcolor},
- {"bbg", spc_handler_pdfm_bgcolor},
-
- {"pagesize", spc_handler_pdfm_pagesize},
-
- {"bannot", spc_handler_pdfm_bann},
- {"beginann", spc_handler_pdfm_bann},
- {"bann", spc_handler_pdfm_bann},
-
- {"eannot", spc_handler_pdfm_eann},
- {"endann", spc_handler_pdfm_eann},
- {"eann", spc_handler_pdfm_eann},
-
- {"btrans", spc_handler_pdfm_btrans},
- {"begintransform", spc_handler_pdfm_btrans},
- {"begintrans", spc_handler_pdfm_btrans},
- {"bt", spc_handler_pdfm_btrans},
-
- {"etrans", spc_handler_pdfm_etrans},
- {"endtransform", spc_handler_pdfm_etrans},
- {"endtrans", spc_handler_pdfm_etrans},
- {"et", spc_handler_pdfm_etrans},
-
- {"bform", spc_handler_pdfm_bform},
- {"beginxobj", spc_handler_pdfm_bform},
- {"bxobj", spc_handler_pdfm_bform},
-
- {"eform", spc_handler_pdfm_eform},
- {"endxobj", spc_handler_pdfm_eform},
- {"exobj", spc_handler_pdfm_eform},
-
- {"usexobj", spc_handler_pdfm_uxobj},
- {"uxobj", spc_handler_pdfm_uxobj},
-
- {"tounicode", spc_handler_pdfm_tounicode},
- {"literal", spc_handler_pdfm_literal},
- {"stream", spc_handler_pdfm_stream},
- {"fstream", spc_handler_pdfm_fstream},
- {"names", spc_handler_pdfm_names},
- {"mapline", spc_handler_pdfm_mapline},
- {"mapfile", spc_handler_pdfm_mapfile},
-
- {"bcontent", spc_handler_pdfm_bcontent},
- {"econtent", spc_handler_pdfm_econtent},
- {"code", spc_handler_pdfm_code},
-
- {"minorversion", spc_handler_pdfm_do_nothing},
- {"majorversion", spc_handler_pdfm_do_nothing},
- {"encrypt", spc_handler_pdfm_do_nothing},
-
- {"pageresources", spc_handler_pdfm_pageresources},
- {"trailerid", spc_handler_pdfm_do_nothing},
-
- {"xannot", spc_handler_pdfm_xann},
- {"extendann", spc_handler_pdfm_xann},
- {"xann", spc_handler_pdfm_xann},
-
- {"bxgstate", spc_handler_pdfm_bxgstate},
- {"exgstate", spc_handler_pdfm_exgstate},
-};
-
-static struct spc_handler pdft_compat_handlers[] = {
- /* Text supplied to "direct" command should go inside of BT/ET block
- * but dvipdfmx currently can't be implemented so.
- * Here, "direct" is for the moment just an alias of "page".
- */
- {"direct", spc_handler_pdft_compat_page},
- {"page", spc_handler_pdft_compat_page},
-};
-
-int
-spc_pdfm_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("pdf:") <= endptr &&
- !memcmp(p, "pdf:", strlen("pdf:"))) {
- r = 1;
- }
-
- return r;
-}
-
-int
-spc_pdfm_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("pdf:") >= ap->endptr ||
- memcmp(ap->curptr, "pdf:", strlen("pdf:"))) {
- spc_warn(spe, "Not pdf: special???");
- return -1;
- }
- ap->curptr += strlen("pdf:");
-
- skip_white(&ap->curptr, ap->endptr);
- q = parse_c_ident(&ap->curptr, ap->endptr);
- if (q) {
- int is_pdft_compat = 0;
- if (ap->curptr < ap->endptr) {
- if (ap->curptr[0] == ':') {
- is_pdft_compat = 1;
- ap->curptr++;
- }
- }
- if (is_pdft_compat) {
- for (i = 0; i < sizeof(pdft_compat_handlers) / sizeof(struct spc_handler); i++) {
- if (!strcmp(q, pdft_compat_handlers[i].key)) {
- ap->command = pdft_compat_handlers[i].key;
- sph->key = "pdf:";
- sph->exec = pdft_compat_handlers[i].exec;
- skip_white(&ap->curptr, ap->endptr);
- error = 0;
- break;
- }
- }
- } else {
- for (i = 0; i < sizeof(pdfm_handlers) / sizeof(struct spc_handler); i++) {
- if (!strcmp(q, pdfm_handlers[i].key)) {
- ap->command = pdfm_handlers[i].key;
- sph->key = "pdf:";
- sph->exec = pdfm_handlers[i].exec;
- skip_white(&ap->curptr, ap->endptr);
- error = 0;
- break;
- }
- }
- }
- RELEASE(q);
- }
-
- return error;
-}