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authorKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
committerKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
commit487ca4806cc046076293cf6cc5fbba0db282bac7 (patch)
tree847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/dvipng/enc.c
parenta3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff)
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/dvipng/enc.c')
-rw-r--r--Build/source/texk/dvipng/enc.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/Build/source/texk/dvipng/enc.c b/Build/source/texk/dvipng/enc.c
new file mode 100644
index 00000000000..a5dd1688861
--- /dev/null
+++ b/Build/source/texk/dvipng/enc.c
@@ -0,0 +1,125 @@
+/* enc.c */
+
+/************************************************************************
+
+ Part of the dvipng distribution
+
+ 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.
+
+ Copyright (C) 2002-2005 Jan-Åke Larsson
+
+************************************************************************/
+
+#include "dvipng.h"
+
+struct encoding* encodingp=NULL;
+
+struct encoding* InitEncoding(char* encoding)
+{
+ char *pos,*max,*buf,*enc_file;
+ int i;
+ struct encoding* encp=NULL;
+ struct filemmap fmmap;
+
+#ifdef HAVE_KPSE_ENC_FORMATS
+ TEMPSTR(enc_file,kpse_find_file(encoding,kpse_enc_format,false));
+#else
+ TEMPSTR(enc_file,kpse_find_file(encoding,kpse_tex_ps_header_format,false));
+#endif
+ if (enc_file == NULL) {
+ Warning("encoding file %s could not be found",encoding);
+ return(NULL);
+ }
+ DEBUG_PRINT((DEBUG_FT|DEBUG_ENC),("\n OPEN ENCODING:\t'%s'", enc_file));
+ if (MmapFile(enc_file,&fmmap)) return(NULL);
+ if ((encp = calloc(sizeof(struct encoding)+strlen(encoding)+1
+ +fmmap.size,1))==NULL) {
+ Warning("cannot alloc space for encoding",enc_file);
+ UnMmapFile(&fmmap);
+ return(NULL);
+ }
+ encp->name=(char*)encp+sizeof(struct encoding);
+ strcpy(encp->name,encoding);
+ pos=fmmap.mmap;
+ max=fmmap.mmap+fmmap.size;
+ buf=encp->name+strlen(encoding)+1;
+#define SKIPCOMMENT(x) if (*x=='%') while (x<max && *x!='\n') x++;
+ while(pos<max && *pos!='/') {
+ SKIPCOMMENT(pos);
+ pos++;
+ }
+ pos++;
+ encp->charname[256]=buf;
+ while(pos<max && *pos!='['
+ && *pos!=' ' && *pos!='\t' && *pos!='\n' && *pos!='%')
+ *buf++=*pos++;
+ *buf++='\0';
+ DEBUG_PRINT(DEBUG_ENC,("\n PS ENCODING '%s'",
+ encp->charname[256]));
+ while (pos < max && *pos!='[') {
+ SKIPCOMMENT(pos);
+ pos++;
+ }
+ while(pos<max && *pos!='/') {
+ SKIPCOMMENT(pos);
+ pos++;
+ }
+ i=0;
+ while(pos<max && *pos!=']') {
+ pos++;
+ encp->charname[i++]=buf;
+ while(pos<max && *pos!=' ' && *pos!='\t' && *pos!='\n' && *pos!='%')
+ *buf++=*pos++;
+ *buf++='\0';
+ DEBUG_PRINT(DEBUG_ENC,("\n PS ENCODING %d '%s'",
+ i-1,encp->charname[i-1]));
+ while(pos<max && *pos!='/' && *pos!=']') {
+ SKIPCOMMENT(pos);
+ pos++;
+ }
+ }
+ UnMmapFile(&fmmap);
+ return(encp);
+}
+
+
+struct encoding* FindEncoding(char* encoding)
+{
+ struct encoding *temp=encodingp;
+
+ /* printf("{%s} \n",encoding); */
+ while(temp!=NULL && strcmp(encoding,temp->name)!=0)
+ temp=temp->next;
+ if (temp==NULL) {
+ temp=InitEncoding(encoding);
+ if (temp!=NULL) {
+ temp->next=encodingp;
+ encodingp=temp;
+ }
+ }
+ return(temp);
+}
+
+void ClearEncoding(void)
+{
+ struct encoding *temp=encodingp;
+
+ while(temp!=NULL) {
+ encodingp=encodingp->next;
+ free(temp);
+ temp=encodingp;
+ }
+}