diff options
Diffstat (limited to 'Build/source/texk/dvipng/dvipng-1.13/sfd.c')
| -rw-r--r-- | Build/source/texk/dvipng/dvipng-1.13/sfd.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/Build/source/texk/dvipng/dvipng-1.13/sfd.c b/Build/source/texk/dvipng/dvipng-1.13/sfd.c new file mode 100644 index 00000000000..99520b116ce --- /dev/null +++ b/Build/source/texk/dvipng/dvipng-1.13/sfd.c @@ -0,0 +1,176 @@ +/* sfd.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 Lesser General Public License as + published by the Free Software Foundation, either version 3 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this program. If not, see + <http://www.gnu.org/licenses/>. + + Copyright (C) 2002-2008 Jan-Åke Larsson + +************************************************************************/ + +#include "dvipng.h" +struct subfont* subfontp=NULL; + +static struct subfont* ReadSubfont(char* sfdname, char *infix) +{ + char *pos,*max,*sfdfile=NULL; + struct subfont* sfdp=NULL; + struct filemmap fmmap; + boolean mmapfailed; + + /* OK, find subfont and look for correct infix */ +#ifdef HAVE_KPSE_ENC_FORMATS + sfdfile=kpse_find_file(sfdname,kpse_sfd_format,false); +#endif + if (sfdfile == NULL) { + Warning("subfont file %s could not be found",sfdname); + return(NULL); + } + DEBUG_PRINT((DEBUG_FT|DEBUG_ENC),("\n OPEN SUBFONT:\t'%s'", sfdfile)); + mmapfailed = MmapFile(sfdfile,&fmmap); + free(sfdfile); + if (mmapfailed) + return(NULL); + pos=fmmap.data; + max=fmmap.data+fmmap.size; + while(pos<max && (*pos==' ' || *pos=='\n' || *pos=='\t')) pos++; + while (pos<max && *pos=='#') { + while(pos<max && *pos!='\n') pos++; + while(pos<max && (*pos==' ' || *pos=='\n' || *pos=='\t')) pos++; + } + while(pos+strlen(infix)<max + && (strncmp(pos,infix,strlen(infix))!=0 + || (pos[strlen(infix)]!=' ' && pos[strlen(infix)]!='\t'))) { + while(pos+1<max && (*(pos+1)!='\n' || *pos=='\\')) + pos++; + pos++; + while(pos<max && (*pos==' ' || *pos=='\n' || *pos=='\t')) pos++; + while (pos<max && *pos=='#') { + while(pos<max && *pos!='\n') pos++; + while(pos<max && (*pos==' ' || *pos=='\n' || *pos=='\t')) pos++; + } + } + pos=pos+strlen(infix); + if (pos<max) { + int number,range,codepoint=0; + + if ((sfdp = calloc(sizeof(struct subfont)+strlen(sfdname)+1 + +strlen(infix)+1,1))==NULL) { + Warning("cannot alloc space for subfont",sfdname); + UnMmapFile(&fmmap); + return(NULL); + } + sfdp->name=(char*)sfdp+sizeof(struct subfont); + strcpy(sfdp->name,sfdname); + sfdp->infix=(char*)sfdp+sizeof(struct subfont)+strlen(sfdname)+1; + strcpy(sfdp->infix,infix); + sfdp->encoding=FT_ENCODING_UNICODE; + while (pos<max && *pos != '\n') { + number=strtol(pos,&pos,0); + while(pos<max && (*pos==' ' || *pos=='\t')) pos++; + switch(*pos) { + case ':': + codepoint=number; + pos++; + break; + case '_': + range=strtol(pos+1,&pos,0); + while(codepoint<256 && number<range) { + sfdp->charindex[codepoint]=number; + DEBUG_PRINT(DEBUG_ENC,("\n SUBFONT MAP %d %d",codepoint,number)); + number++; + codepoint++; + } + default: + if (codepoint<256) + sfdp->charindex[codepoint]=number; + DEBUG_PRINT(DEBUG_ENC,("\n SUBFONT MAP %d %d",codepoint,number)); + } + while(pos<max && (*pos==' ' || *pos=='\t')) pos++; + while(pos<max && *pos=='\\' && pos+1<max && *(pos+1)=='\n') { + pos+=2; + while(pos<max && (*pos==' ' || *pos=='\t')) pos++; + } + } + } + return (sfdp); +} + +struct psfontmap* FindSubFont(struct psfontmap* entry, char* fontname) +{ + struct subfont *temp=subfontp; + char *sfdspec=entry->tfmname,*sfdwant=fontname, + *sfdname,*infix,*postfix; + + while (*sfdspec!='\0' && *sfdspec==*sfdwant) { + sfdspec++; + sfdwant++; + } + /* Find delimiter */ + if (*sfdspec!='@') + return(NULL); + sfdspec++; + postfix=sfdspec; + while (*postfix!='\0' && *postfix!='@') + postfix++; + if (*postfix!='@') + return(NULL); + /* Extract subfont name */ + sfdname=malloc(postfix-sfdspec+1); + strncpy(sfdname,sfdspec,postfix-sfdspec); + sfdname[postfix-sfdspec]='\0'; + /* Check postfix */ + postfix++; + if (strcmp(sfdwant+strlen(sfdwant)-strlen(postfix),postfix)!=0) + return(NULL); + /* Extract infix */ + infix=malloc(strlen(sfdwant)-strlen(postfix)+1); + strncpy(infix,sfdwant,strlen(sfdwant)-strlen(postfix)); + infix[strlen(sfdwant)-strlen(postfix)]='\0'; + DEBUG_PRINT(DEBUG_ENC,("\n SUBFONT %s %s %s",fontname,sfdname,infix)); + /* Find subfont */ + while(temp!=NULL + && (strcmp(sfdname,temp->name)!=0 || strcmp(infix,temp->infix)!=0)) + temp=temp->next; + if (temp==NULL) { + temp=ReadSubfont(sfdname,infix); + if (temp!=NULL) { + temp->next=subfontp; + subfontp=temp; + } + } + entry=NewPSFont(entry); + if (entry!=NULL) { + entry->tfmname=copyword(fontname); + entry->subfont=temp; + } + free(infix); + free(sfdname); + return(entry); +} + +void ClearSubfont(void) +{ + struct subfont *temp=subfontp; + + while(temp!=NULL) { + subfontp=subfontp->next; + free(temp); + temp=subfontp; + } +} + |