void SFD_AssignLookups(SplineFont1 *sf) {
    PST1 *pst, *pst2;
    int isv;
    KernPair1 *kp, *kp2;
    KernClass1 *kc, *kc2;
    FPST1 *fpst;
    ASM1 *sm;
    AnchorClass1 *ac, *ac2;
    int gid, gid2, cnt, i, k, isgpos;
    SplineFont1 *subsf;
    SplineChar *sc, *sc2;
    OTLookup *otl, **all;
    struct lookup_subtable *sub;

    /* Fix up some gunk from really old versions of the sfd format */
    SFDCleanupAnchorClasses(&sf->sf);
    if ( sf->sf.uni_interp==ui_unset && sf->sf.map!=NULL )
	sf->sf.uni_interp = interp_from_encoding(sf->sf.map->enc,ui_none);

    /* Fixup for an old bug */
    if ( sf->sf.pfminfo.os2_winascent < sf->sf.ascent/4 && !sf->sf.pfminfo.winascent_add ) {
	sf->sf.pfminfo.winascent_add = true;
	sf->sf.pfminfo.os2_winascent = 0;
	sf->sf.pfminfo.windescent_add = true;
	sf->sf.pfminfo.os2_windescent = 0;
    }

    /* First handle the PSTs, no complications here */
    k=0;
    do {
	subsf = sf->sf.subfontcnt==0 ? sf : (SplineFont1 *) (sf->sf.subfonts[k]);
	for ( gid=0; gid<subsf->sf.glyphcnt; ++gid ) if ( (sc=subsf->sf.glyphs[gid])!=NULL ) {
	    for ( pst = (PST1 *) (sc->possub); pst!=NULL; pst = (PST1*) (pst->pst.next) ) {
		if ( pst->pst.type == pst_lcaret || pst->pst.subtable!=NULL )
	    continue;		/* Nothing to do, or already done */
		otl = CreateLookup(sf,pst->tag,pst->script_lang_index,pst->flags,pst->pst.type);
		sub = CreateSubtable(otl,sf);
		/* There might be another PST with the same flags on this glyph */
		/* And we must fixup the current pst */
		for ( pst2=pst ; pst2!=NULL; pst2 = (PST1 *) (pst2->pst.next) ) {
		    if ( pst2->tag==pst->tag &&
			    pst2->script_lang_index==pst->script_lang_index &&
			    pst2->flags==pst->flags &&
			    pst2->pst.type==pst->pst.type )
			pst2->pst.subtable = sub;
		}
		for ( gid2=gid+1; gid2<subsf->sf.glyphcnt; ++gid2 ) if ( (sc2=subsf->sf.glyphs[gid2])!=NULL ) {
		    for ( pst2 = (PST1 *) (sc2->possub); pst2!=NULL; pst2 = (PST1 *) (pst2->pst.next) ) {
			if ( pst2->tag==pst->tag &&
				pst2->script_lang_index==pst->script_lang_index &&
				pst2->flags==pst->flags &&
				pst2->pst.type==pst->pst.type )
			    pst2->pst.subtable = sub;
		    }
		}
	    }
	}
	++k;
    } while ( k<sf->sf.subfontcnt );

	/* Now kerns. May need to merge kernclasses to kernpair lookups (different subtables, of course */
    for ( isv=0; isv<2; ++isv ) {
	k=0;
	do {
	    subsf = sf->sf.subfontcnt==0 ? sf : (SplineFont1 *) (sf->sf.subfonts[k]);
	    for ( gid=0; gid<subsf->sf.glyphcnt; ++gid ) if ( (sc=subsf->sf.glyphs[gid])!=NULL ) {
		for ( kp = (KernPair1 *) (isv ? sc->vkerns : sc->kerns); kp!=NULL; kp = (KernPair1 *) (kp->kp.next) ) {
		    if ( kp->kp.subtable!=NULL )
		continue;		/* already done */
		    otl = CreateLookup(sf,isv ? CHR('v','k','r','n') : CHR('k','e','r','n'),
			    kp->sli,kp->flags,pst_pair);
		    sub = CreateSubtable(otl,sf);
		    /* There might be another kp with the same flags on this glyph */
		    /* And we must fixup the current kp */
		    for ( kp2=kp ; kp2!=NULL; kp2 = (KernPair1 *) (kp2->kp.next) ) {
			if ( kp2->sli==kp->sli && kp2->flags==kp->flags )
			    kp2->kp.subtable = sub;
		    }
		    for ( gid2=gid+1; gid2<subsf->sf.glyphcnt; ++gid2 ) if ( (sc2=subsf->sf.glyphs[gid2])!=NULL ) {
			for ( kp2 = (KernPair1 *) (isv ? sc2->vkerns : sc2->kerns); kp2!=NULL; kp2 = (KernPair1 *) (kp2->kp.next) ) {
			    if ( kp2->sli==kp->sli && kp2->flags==kp->flags )
				kp2->kp.subtable = sub;
			}
		    }
		    /* And there might be a kerning class... */
		    for ( kc=(KernClass1 *) (isv ? sf->sf.vkerns : sf->sf.kerns); kc!=NULL;
			    kc = (KernClass1 *) (kc->kc.next) ) {
			if ( kc->sli == kp->sli && kc->flags == kp->flags && kc->kc.subtable==NULL) {
			    sub = CreateSubtable(otl,sf);
			    sub->per_glyph_pst_or_kern = false;
			    sub->kc = &kc->kc;
			    kc->kc.subtable = sub;
			}
		    }
		}
	    }
	    ++k;
	} while ( k<sf->sf.subfontcnt );
	/* Or there might be a kerning class all by its lonesome */
	for ( kc=(KernClass1 *) (isv ? sf->sf.vkerns : sf->sf.kerns); kc!=NULL;
		kc = (KernClass1 *) (kc->kc.next) ) {
	    if ( kc->kc.subtable==NULL) {
		otl = CreateLookup(sf,isv ? CHR('v','k','r','n') : CHR('k','e','r','n'),
			kc->sli,kc->flags,pst_pair);
		for ( kc2=kc; kc2!=NULL; kc2=(KernClass1 *) (kc2->kc.next) ) {
		    if ( kc->sli == kc2->sli && kc->flags == kc2->flags && kc2->kc.subtable==NULL) {
			sub = CreateSubtable(otl,sf);
			sub->per_glyph_pst_or_kern = false;
			sub->kc = &kc2->kc;
			kc2->kc.subtable = sub;
		    }
		}
	    }
	}
    }

    /* Every FPST and ASM lives in its own lookup with one subtable */
    /* But the old format refered to nested lookups by tag, and now we refer */
    /*  to the lookup itself, so fix that up */
    for ( fpst=(FPST1 *) sf->sf.possub; fpst!=NULL; fpst=((FPST1 *) fpst->fpst.next) ) {
	otl = CreateLookup(sf,fpst->tag, fpst->script_lang_index,
		fpst->flags,fpst->fpst.type);
	sub = CreateSubtable(otl,sf);
	sub->per_glyph_pst_or_kern = false;
	sub->fpst = &fpst->fpst;
	fpst->fpst.subtable = sub;
	FPSTReplaceTagsWithLookups(&fpst->fpst,sf);
    }
    for ( sm=(ASM1 *) sf->sf.sm; sm!=NULL; sm=((ASM1 *) sm->sm.next) ) {
	otl = CreateMacLookup(sf,sm);
	sub = CreateSubtable(otl,sf);
	sub->per_glyph_pst_or_kern = false;
	sub->sm = &sm->sm;
	sm->sm.subtable = sub;
	if ( sm->sm.type==asm_context )
	    ASMReplaceTagsWithLookups(&sm->sm,sf);
    }

    /* We retained the old nested feature tags so we could do the above conversion */
    /*  of tag to lookup. Get rid of them now */
    for ( isgpos=0; isgpos<2; ++isgpos ) {
	for ( otl = isgpos ? sf->sf.gpos_lookups : sf->sf.gsub_lookups ;
		otl != NULL; otl=otl->next ) {
	    if ( otl->features!=NULL && otl->features->scripts==NULL ) {
		chunkfree(otl->features,sizeof(FeatureScriptLangList));
		otl->features = NULL;
	    }
	}
    }

    /* Anchor classes are complicated, because I foolishly failed to distinguish */
    /*  between mark to base and mark to ligature classes. So one AC might have */
    /*  both. If so we need to turn it into two ACs, and have separate lookups */
    /*  for each */
    for ( ac=(AnchorClass1 *) (sf->sf.anchor); ac!=NULL; ac=(AnchorClass1 *) ac->ac.next ) {
	ACHasBaseLig(sf,ac);
	if ( ac->has_ligatures && !ac->has_bases )
	    ac->ac.type = act_mklg;
	else if ( ac->has_ligatures && ac->has_bases )
	    ACDisassociateLigatures(sf,ac);
    }
    for ( ac=(AnchorClass1 *) (sf->sf.anchor); ac!=NULL; ac=(AnchorClass1 *) ac->ac.next ) {
	if ( ac->ac.subtable==NULL ) {
	    otl = CreateACLookup(sf,ac);
	    sub = CreateSubtable(otl,sf);
	    for ( ac2=ac; ac2!=NULL; ac2 = (AnchorClass1 *) ac2->ac.next ) {
		if ( ac2->feature_tag == ac->feature_tag &&
			ac2->script_lang_index == ac->script_lang_index &&
			ac2->flags == ac->flags &&
			ac2->ac.type == ac->ac.type &&
			ac2->merge_with == ac->merge_with )
		    ac2->ac.subtable = sub;
	    }
	}
    }

    /* Now I want to order the gsub lookups. I shan't bother with the gpos */
    /*  lookups because I didn't before */
    for ( otl=sf->sf.gsub_lookups, cnt=0; otl!=NULL; otl=otl->next, ++cnt );
    if ( cnt!=0 ) {
	all = malloc(cnt*sizeof(OTLookup *));
	for ( otl=sf->sf.gsub_lookups, cnt=0; otl!=NULL; otl=otl->next, ++cnt ) {
	    all[cnt] = otl;
	    otl->lookup_index = GSubOrder(sf,otl->features);
	}
	qsort(all,cnt,sizeof(OTLookup *),order_lookups);
	sf->sf.gsub_lookups = all[0];
	for ( i=1; i<cnt; ++i )
	    all[i-1]->next = all[i];
	all[cnt-1]->next = NULL;
	free( all );
    }

    for ( isgpos=0; isgpos<2; ++isgpos ) {
	for ( otl = isgpos ? sf->sf.gpos_lookups : sf->sf.gsub_lookups , cnt=0;
		otl!=NULL; otl = otl->next ) {
	    otl->lookup_index = cnt++;
	    NameOTLookup(otl,&sf->sf);
	}
    }
}


Fix for #4084 Use-after-free (heap) in the SFD_GetFontMetaData() function
Fix for #4086 NULL pointer dereference in the SFDGetSpiros() function
Fix for #4088 NULL pointer dereference in the SFD_AssignLookups() function
Add empty sf->fontname string if it isn't set, fixing #4089 #4090 and many
  other potential issues (many downstream calls to strlen() on the value).

static void SFDGetGasp(FILE *sfd,SplineFont *sf) {
    int i;

    getsint(sfd,(int16 *) &sf->gasp_cnt);
    sf->gasp = malloc(sf->gasp_cnt*sizeof(struct gasp));
    for ( i=0; i<sf->gasp_cnt; ++i ) {
	getsint(sfd,(int16 *) &sf->gasp[i].ppem);
	getsint(sfd,(int16 *) &sf->gasp[i].flags);
    }
    getsint(sfd,(int16 *) &sf->gasp_version);
}

FontForge 20190801 has a use-after-free in SFD_GetFontMetaData in sfd.c.


static int SFDDumpBitmapFont(FILE *sfd,BDFFont *bdf,EncMap *encm,int *newgids,
	int todir, char *dirname) {
    int i;
    int err = false;
    BDFChar *bc;
    BDFRefChar *ref;

    ff_progress_next_stage();
    if (bdf->foundry)
        fprintf( sfd, "BitmapFont: %d %d %d %d %d %s\n", bdf->pixelsize, bdf->glyphcnt,
                 bdf->ascent, bdf->descent, BDFDepth(bdf), bdf->foundry );
    else
        fprintf( sfd, "BitmapFont: %d %d %d %d %d\n", bdf->pixelsize, bdf->glyphcnt,
                 bdf->ascent, bdf->descent, BDFDepth(bdf) );
    if ( bdf->prop_cnt>0 ) {
	fprintf( sfd, "BDFStartProperties: %d\n", bdf->prop_cnt );
	for ( i=0; i<bdf->prop_cnt; ++i ) {
	    fprintf(sfd,"%s %d ", bdf->props[i].name, bdf->props[i].type );
	    switch ( bdf->props[i].type&~prt_property ) {
	      case prt_int: case prt_uint:
		fprintf(sfd, "%d\n", bdf->props[i].u.val );
	      break;
	      case prt_string: case prt_atom:
		fprintf(sfd, "\"%s\"\n", bdf->props[i].u.str );
	      break;
	      default:
	      break;
	    }
	}
	fprintf( sfd, "BDFEndProperties\n" );
    }
    if ( bdf->res>20 )
	fprintf( sfd, "Resolution: %d\n", bdf->res );
    for ( i=0; i<bdf->glyphcnt; ++i ) {
	if ( bdf->glyphs[i]!=NULL ) {
	    if ( todir ) {
		char *glyphfile = malloc(strlen(dirname)+2*strlen(bdf->glyphs[i]->sc->name)+20);
		FILE *gsfd;
		appendnames(glyphfile,dirname,"/",bdf->glyphs[i]->sc->name,BITMAP_EXT );
		gsfd = fopen(glyphfile,"w");
		if ( gsfd!=NULL ) {
		    SFDDumpBitmapChar(gsfd,bdf->glyphs[i],encm->backmap[i],newgids);
		    if ( ferror(gsfd)) err = true;
		    if ( fclose(gsfd)) err = true;
		} else
		    err = true;
		free(glyphfile);
	    } else
		SFDDumpBitmapChar(sfd,bdf->glyphs[i],encm->backmap[i],newgids);
	}
	ff_progress_next();
    }
    for ( i=0; i<bdf->glyphcnt; ++i ) if (( bc = bdf->glyphs[i] ) != NULL ) {
    	for ( ref=bc->refs; ref!=NULL; ref=ref->next )
	    fprintf(sfd, "BDFRefChar: %d %d %d %d %c\n",
		newgids!=NULL ? newgids[bc->orig_pos] : bc->orig_pos,
		newgids!=NULL ? newgids[ref->bdfc->orig_pos] : ref->bdfc->orig_pos,
		ref->xoff,ref->yoff,ref->selected?'S':'N' );
    }
    fprintf( sfd, "EndBitmapFont\n" );
return( err );
}


static void SFDPickleMe(FILE *sfd,void *python_data, int python_data_has_lists) {
    char *string, *pt;

#ifdef _NO_PYTHON
    string = (char *) python_data;
#else
    string = PyFF_PickleMeToString(python_data);
#endif
    if ( string==NULL )
return;
    if (python_data_has_lists)
    fprintf( sfd, "PickledDataWithLists: \"" );
    else
    fprintf( sfd, "PickledData: \"" );
    for ( pt=string; *pt; ++pt ) {
	if ( *pt=='\\' || *pt=='"' )
	    putc('\\',sfd);
	putc(*pt,sfd);
    }
    fprintf( sfd, "\"\n");
#ifndef _NO_PYTHON
    free(string);
#endif
}


static void SFDDumpBase(FILE *sfd,const char *keyword,struct Base *base) {
    int i;
    struct basescript *bs;
    struct baselangextent *bl;

    fprintf( sfd, "%s %d", keyword, base->baseline_cnt );
    for ( i=0; i<base->baseline_cnt; ++i ) {
	fprintf( sfd, " '%c%c%c%c'",
		base->baseline_tags[i]>>24,
		base->baseline_tags[i]>>16,
		base->baseline_tags[i]>>8,
		base->baseline_tags[i]);
    }
    putc('\n',sfd);

    for ( bs=base->scripts; bs!=NULL; bs=bs->next ) {
	fprintf( sfd, "BaseScript: '%c%c%c%c' %d ",
		bs->script>>24, bs->script>>16, bs->script>>8, bs->script,
		bs->def_baseline );
	for ( i=0; i<base->baseline_cnt; ++i )
	    fprintf( sfd, " %d", bs->baseline_pos[i]);
	for ( bl=bs->langs; bl!=NULL; bl=bl->next )
	    SFDDumpBaseLang(sfd,bl);
	putc('\n',sfd);
    }
}


static int getsint(FILE *sfd, int16 *val) {
    int val2;
    int ret = getint(sfd,&val2);
    *val = val2;
return( ret );
}


static void SFDDumpBaseLang(FILE *sfd,struct baselangextent *bl) {

    if ( bl->lang==0 )
	fprintf( sfd, " { %d %d", bl->descent, bl->ascent );
    else
	fprintf( sfd, " { '%c%c%c%c' %d %d",
		bl->lang>>24, bl->lang>>16, bl->lang>>8, bl->lang,
		bl->descent, bl->ascent );
    for ( bl=bl->features; bl!=NULL; bl=bl->next )
	SFDDumpBaseLang(sfd,bl);
    putc('}',sfd);
}


static PST1 *LigaCreateFromOldStyleMultiple(PST1 *liga) {
    char *pt;
    PST1 *new, *last=liga;
    while ( (pt = strrchr(liga->pst.u.lig.components,';'))!=NULL ) {
	new = chunkalloc(sizeof( PST1 ));
	*new = *liga;
	new->pst.u.lig.components = copy(pt+1);
	last->pst.next = (PST *) new;
	last = new;
	*pt = '\0';
    }
return( last );
}


static int PeekMatch(FILE *stream, const char * target) {
  // This returns 1 if target matches the next characters in the stream.
  int pos1 = 0;
  int lastread = getc(stream);
  while (target[pos1] != '\0' && lastread != EOF && lastread == target[pos1]) {
    pos1 ++; lastread = getc(stream);
  }

  int rewind_amount = pos1 + ((lastread == EOF) ? 0 : 1);
  fseek(stream, -rewind_amount, SEEK_CUR);
  return (target[pos1] == '\0');
}


static void SFDGetTtInstrs(FILE *sfd, SplineChar *sc) {
    /* We've read the TtInstr token, it is followed by text versions of */
    /*  the instructions, slurp it all into a big buffer, and then parse that */
    char *buf=NULL, *pt=buf, *end=buf;
    int ch;
    int backlen = strlen(end_tt_instrs);
    int instr_len;

    while ( (ch=nlgetc(sfd))!=EOF ) {
	if ( pt>=end ) {
	    char *newbuf = realloc(buf,(end-buf+200));
	    pt = newbuf+(pt-buf);
	    end = newbuf+(end+200-buf);
	    buf = newbuf;
	}
	*pt++ = ch;
	if ( pt-buf>backlen && strncmp(pt-backlen,end_tt_instrs,backlen)==0 ) {
	    pt -= backlen;
    break;
	}
    }
    *pt = '\0';

    sc->ttf_instrs = _IVParse(sc->parent,buf,&instr_len,tterr,NULL);
    sc->ttf_instrs_len = instr_len;

    free(buf);
}


static int SFDDump(FILE *sfd,SplineFont *sf,EncMap *map,EncMap *normal,
	int todir, char *dirname) {
    int i, realcnt;
    BDFFont *bdf;
    int err = false;

    realcnt = sf->glyphcnt;
    if ( sf->subfontcnt!=0 ) {
	for ( i=0; i<sf->subfontcnt; ++i )
	    if ( realcnt<sf->subfonts[i]->glyphcnt )
		realcnt = sf->subfonts[i]->glyphcnt;
    }
    for ( i=0, bdf = sf->bitmaps; bdf!=NULL; bdf=bdf->next, ++i );
    ff_progress_start_indicator(10,_("Saving..."),_("Saving Spline Font Database"),_("Saving Outlines"),
	    realcnt,i+1);
    ff_progress_enable_stop(false);
#ifndef _NO_LIBPNG
    double version = 3.2;
    if (!WritePNGInSFD) version = 3.1;
#else
    double version = 3.1;
#endif
    if (!UndoRedoLimitToSave && version == 3.1) {
        version = 3.0;
    }
    fprintf(sfd, "SplineFontDB: %.1f\n", version );
    if ( sf->mm != NULL )
	err = SFD_MMDump(sfd,sf->mm->normal,map,normal,todir,dirname);
    else
	err = SFD_Dump(sfd,sf,map,normal,todir,dirname);
    ff_progress_end_indicator();
return( err );
}


static OTLookup **SFDLookupList(FILE *sfd,SplineFont *sf) {
    int ch;
    OTLookup **ret=NULL, *otl;
    int lcnt=0, lmax=0;
    char *name;

    for (;;) {
	while ( (ch=nlgetc(sfd))==' ' );
	if ( ch=='\n' || ch==EOF )
    break;
	ungetc(ch,sfd);
	name = SFDReadUTF7Str(sfd);
	otl = SFFindLookup(sf,name);
	free(name);
	if ( otl!=NULL ) {
	    if ( lcnt>=lmax ) {
	        lmax += 100;
	        ret = realloc(ret, lmax * sizeof(OTLookup *));
	    }
	    ret[lcnt++] = otl;
	}
    }
    if ( lcnt==0 )
return( NULL );
    ret = realloc(ret, (lcnt+1) * sizeof(OTLookup *));
    ret[lcnt] = NULL;
return( ret );
}


static OTLookup *CreateMacLookup(SplineFont1 *sf,ASM1 *sm) {
    OTLookup *otl = chunkalloc(sizeof(OTLookup));
    int i, ch;
    char *pt, *start;
    SplineChar *sc;

    otl->features = chunkalloc(sizeof(FeatureScriptLangList));
    if ( sm->sm.type == asm_kern ) {
	otl->lookup_type = kern_statemachine;
	otl->next = sf->sf.gpos_lookups;
	sf->sf.gpos_lookups = otl;
	otl->features->featuretag = (sm->sm.flags&0x8000) ? CHR('v','k','r','n') : CHR('k','e','r','n');
    } else {
	otl->lookup_type = sm->sm.type==asm_indic ? morx_indic : sm->sm.type==asm_context ? morx_context : morx_insert;
	otl->next = sf->sf.gsub_lookups;
	sf->sf.gsub_lookups = otl;
	otl->features->featuretag = (sm->feature<<16) | (sm->setting);
	otl->features->ismac = true;
    }
    otl->lookup_flags = 0;

    for ( i=4; i<sm->sm.class_cnt; ++i ) {
	for ( start=sm->sm.classes[i]; ; start = pt ) {
	    while ( *start==' ' ) ++start;
	    if ( *start=='\0' )
	break;
	    for ( pt=start ; *pt!='\0' && *pt!=' '; ++pt );
	    ch = *pt; *pt = '\0';
	    sc = SFGetChar(&sf->sf,-1,start);
	    if ( sc!=NULL )
		FListAppendScriptLang(otl->features,SCScriptFromUnicode(sc),
			DEFAULT_LANG);
	    *pt = ch;
	}
    }

    /* We will set the lookup_index after we've ordered the list */
    /* We will set the lookup_name after we've assigned the index */
    /* We will add one subtable soon */
return( otl );
}


static void putstring(FILE *sfd, const char *header, char *body) {
    fprintf( sfd, "%s", header );
    while ( *body ) {
	if ( *body=='\n' || *body == '\\' || *body=='\r' ) {
	    putc('\\',sfd);
	    if ( *body=='\\' )
		putc('\\',sfd);
	    else {
		putc('n',sfd);
		if ( *body=='\r' && body[1]=='\n' )
		    ++body;
	    }
	} else
	    putc(*body,sfd);
	++body;
    }
    putc('\n',sfd);
}


void SFClearAutoSave(SplineFont *sf) {
    int i;
    SplineFont *ssf;

    if ( sf->cidmaster!=NULL ) sf = sf->cidmaster;
    sf->changed_since_autosave = false;
    for ( i=0; i<sf->subfontcnt; ++i ) {
	ssf = sf->subfonts[i];
	ssf->changed_since_autosave = false;
	if ( ssf->autosavename!=NULL ) {
	    unlink( ssf->autosavename );
	    free( ssf->autosavename );
	    ssf->autosavename = NULL;
	}
    }
    if ( sf->autosavename==NULL )
return;
    unlink(sf->autosavename);
    free(sf->autosavename);
    sf->autosavename = NULL;
}


static void SFDParseLookup(FILE *sfd,OTLookup *otl) {
    int ch;
    struct lookup_subtable *sub, *lastsub;
    FeatureScriptLangList *fl, *lastfl;
    struct scriptlanglist *sl, *lastsl;
    int i, lcnt, lmax=0;
    uint32 *langs=NULL;
    char *subname;

    while ( (ch=nlgetc(sfd))==' ' );
    if ( ch=='{' ) {
	lastsub = NULL;
	while ( (subname = SFDReadUTF7Str(sfd))!=NULL ) {
	    while ( (ch=nlgetc(sfd))==' ' );
	    ungetc(ch,sfd);
	    sub = chunkalloc(sizeof(struct lookup_subtable));
	    sub->subtable_name = subname;
	    sub->lookup = otl;
	    switch ( otl->lookup_type ) {
	      case gsub_single:
		while ( (ch=nlgetc(sfd))==' ' );
		if ( ch=='(' ) {
		    sub->suffix = SFDReadUTF7Str(sfd);
		    while ( (ch=nlgetc(sfd))==' ' );
			/* slurp final paren */
		} else
		    ungetc(ch,sfd);
		sub->per_glyph_pst_or_kern = true;
	      break;
	      case gsub_multiple: case gsub_alternate: case gsub_ligature:
	      case gpos_single:
		sub->per_glyph_pst_or_kern = true;
	      break;
	      case gpos_pair:
		if ( (ch=nlgetc(sfd))=='(' ) {
		    ch = nlgetc(sfd);
		    sub->vertical_kerning = (ch=='1');
		    nlgetc(sfd);	/* slurp final paren */
		    ch=nlgetc(sfd);
		}
		if ( ch=='[' ) {
		    getsint(sfd,&sub->separation);
		    nlgetc(sfd);	/* slurp comma */
		    getsint(sfd,&sub->minkern);
		    nlgetc(sfd);	/* slurp comma */
		    ch = nlgetc(sfd);
		    sub->kerning_by_touch = ((ch-'0')&1)?1:0;
		    sub->onlyCloser       = ((ch-'0')&2)?1:0;
		    sub->dontautokern     = ((ch-'0')&4)?1:0;
		    nlgetc(sfd);	/* slurp final bracket */
		} else {
		    ungetc(ch,sfd);
		}
		sub->per_glyph_pst_or_kern = true;
	      break;
	      case gpos_cursive: case gpos_mark2base: case gpos_mark2ligature: case gpos_mark2mark:
		sub->anchor_classes = true;
	      break;
	      default:
	      break;
	    }
	    if ( lastsub==NULL )
		otl->subtables = sub;
	    else
		lastsub->next = sub;
	    lastsub = sub;
	}
	while ( (ch=nlgetc(sfd))==' ' );
	if ( ch=='}' )
	    ch = nlgetc(sfd);
    }
    while ( ch==' ' )
	ch = nlgetc(sfd);
    if ( ch=='[' ) {
	lastfl = NULL;
	for (;;) {
	    while ( (ch=nlgetc(sfd))==' ' );
	    if ( ch==']' )
	break;
	    fl = chunkalloc(sizeof(FeatureScriptLangList));
	    if ( lastfl==NULL )
		otl->features = fl;
	    else
		lastfl->next = fl;
	    lastfl = fl;
	    if ( ch=='<' ) {
		int ft=0,fs=0;
		fscanf(sfd,"%d,%d>", &ft, &fs );
		fl->ismac = true;
		fl->featuretag = (ft<<16) | fs;
	    } else if ( ch=='\'' ) {
		ungetc(ch,sfd);
		fl->featuretag = gettag(sfd);
	    }
	    while ( (ch=nlgetc(sfd))==' ' );
	    if ( ch=='(' ) {
		lastsl = NULL;
		for (;;) {
		    while ( (ch=nlgetc(sfd))==' ' );
		    if ( ch==')' )
		break;
		    sl = chunkalloc(sizeof(struct scriptlanglist));
		    if ( lastsl==NULL )
			fl->scripts = sl;
		    else
			lastsl->next = sl;
		    lastsl = sl;
		    if ( ch=='\'' ) {
			ungetc(ch,sfd);
			sl->script = gettag(sfd);
		    }
		    while ( (ch=nlgetc(sfd))==' ' );
		    if ( ch=='<' ) {
			lcnt = 0;
			for (;;) {
			    while ( (ch=nlgetc(sfd))==' ' );
			    if ( ch=='>' )
			break;
			    if ( ch=='\'' ) {
				ungetc(ch,sfd);
			        if ( lcnt>=lmax )
				    langs = realloc(langs,(lmax+=10)*sizeof(uint32));
				langs[lcnt++] = gettag(sfd);
			    }
			}
			sl->lang_cnt = lcnt;
			if ( lcnt>MAX_LANG )
			    sl->morelangs = malloc((lcnt-MAX_LANG)*sizeof(uint32));
			for ( i=0; i<lcnt; ++i ) {
			    if ( i<MAX_LANG )
				sl->langs[i] = langs[i];
			    else
				sl->morelangs[i-MAX_LANG] = langs[i];
			}
		    }
		}
	    }
	}
    }
    free(langs);
}


static void SFDDumpHintMask(FILE *sfd,HintMask *hintmask) {
    unsigned i, j;

    for ( i=HntMax/8-1; i>0; --i )
	if ( (*hintmask)[i]!=0 )
    break;
    for ( j=0; /* j <= i, but that might never be true, so we test j == i at end of loop */ ; ++j ) {
	if ( ((*hintmask)[j]>>4)<10 )
	    putc('0'+((*hintmask)[j]>>4),sfd);
	else
	    putc('a'-10+((*hintmask)[j]>>4),sfd);
	if ( ((*hintmask)[j]&0xf)<10 )
	    putc('0'+((*hintmask)[j]&0xf),sfd);
	else
	    putc('a'-10+((*hintmask)[j]&0xf),sfd);
        if (j == i) break;
    }
}


static void SFDDumpValDevTab(FILE *sfd,ValDevTab *adjust) {
    if ( adjust==NULL )
return;
    fprintf( sfd, " [ddx=" ); SFDDumpDeviceTable(sfd,&adjust->xadjust);
    fprintf( sfd, " ddy=" ); SFDDumpDeviceTable(sfd,&adjust->yadjust);
    fprintf( sfd, " ddh=" ); SFDDumpDeviceTable(sfd,&adjust->xadv);
    fprintf( sfd, " ddv=" ); SFDDumpDeviceTable(sfd,&adjust->yadv);
    putc(']',sfd);
}


static void SFDirClean(char *filename) {
    DIR *dir;
    struct dirent *ent;
    char *buffer, *pt;

    unlink(filename);		/* Just in case it's a normal file, it shouldn't be, but just in case... */
    dir = opendir(filename);
    if ( dir==NULL )
return;
    buffer = malloc(strlen(filename)+1+NAME_MAX+1);
    while ( (ent = readdir(dir))!=NULL ) {
	if ( strcmp(ent->d_name,".")==0 || strcmp(ent->d_name,"..")==0 )
    continue;
	pt = strrchr(ent->d_name,EXT_CHAR);
	if ( pt==NULL )
    continue;
	sprintf( buffer,"%s/%s", filename, ent->d_name );
	if ( strcmp(pt,".props")==0 ||
		strcmp(pt,GLYPH_EXT)==0 ||
		strcmp(pt,BITMAP_EXT)==0 )
	    unlink( buffer );
	else if ( strcmp(pt,STRIKE_EXT)==0 ||
		strcmp(pt,SUBFONT_EXT)==0 ||
		strcmp(pt,INSTANCE_EXT)==0 )
	    SFDirClean(buffer);
	/* If there are filenames we don't recognize, leave them. They might contain version control info */
    }
    free(buffer);
    closedir(dir);
}


static int ModSF(FILE *asfd,SplineFont *sf) {
    Encoding *newmap;
    int cnt;
    int multilayer=0;
    char tok[200];
    int i,k;
    SplineChar *sc;
    SplineFont *ssf;
    SplineFont temp;
    int layercnt;

    memset(&temp,0,sizeof(temp));
    temp.layers = sf->layers;
    temp.layer_cnt = sf->layer_cnt;
    temp.layers[ly_back].order2 = sf->layers[ly_back].order2;
    temp.layers[ly_fore].order2 = sf->layers[ly_fore].order2;
    temp.ascent = sf->ascent; temp.descent = sf->descent;
    temp.multilayer = sf->multilayer;
    temp.gpos_lookups = sf->gpos_lookups;
    temp.gsub_lookups = sf->gsub_lookups;
    temp.anchor = sf->anchor;
    temp.sfd_version = 2;

    if ( getname(asfd,tok)!=1 || strcmp(tok,"Encoding:")!=0 )
return(false);
    newmap = SFDGetEncoding(asfd,tok);
    if ( getname(asfd,tok)!=1 )
return( false );
    if ( strcmp(tok,"UnicodeInterp:")==0 ) {
	sf->uni_interp = SFDGetUniInterp(asfd,tok,sf);
	if ( getname(asfd,tok)!=1 )
return( false );
    }
    if ( sf->map!=NULL && sf->map->enc!=newmap ) {
	EncMap *map = EncMapFromEncoding(sf,newmap);
	EncMapFree(sf->map);
	sf->map = map;
    }
    temp.map = sf->map;
    if ( strcmp(tok,"LayerCount:")==0 ) {
	getint(asfd,&layercnt);
	if ( layercnt>sf->layer_cnt ) {
	    sf->layers = realloc(sf->layers,layercnt*sizeof(LayerInfo));
	    memset(sf->layers+sf->layer_cnt,0,(layercnt-sf->layer_cnt)*sizeof(LayerInfo));
	}
	sf->layer_cnt = layercnt;
	if ( getname(asfd,tok)!=1 )
return( false );
    }
    while ( strcmp(tok,"Layer:")==0 ) {
	int layer, o2;
	getint(asfd,&layer);
	getint(asfd,&o2);
	if ( layer<sf->layer_cnt ) {
	    sf->layers[layer].order2 = o2;
		if (sf->layers[layer].name)
		    free(sf->layers[layer].name);
	    sf->layers[layer].name = SFDReadUTF7Str(asfd);
	}
	if ( getname(asfd,tok)!=1 )
return( false );
    }
    if ( strcmp(tok,"MultiLayer:")==0 ) {
	getint(asfd,&multilayer);
	if ( getname(asfd,tok)!=1 )
return( false );
    }
    if ( multilayer!=sf->multilayer ) {
	if ( !multilayer )
	    SFSplinesFromLayers(sf,false);
	sf->multilayer = multilayer;
	/* SFLayerChange(sf);*/		/* Shouldn't have any open windows, should not be needed */
    }
    if ( strcmp(tok,"BeginChars:")!=0 )
return(false);
    SFRemoveDependencies(sf);

    getint(asfd,&cnt);
    if ( cnt>sf->glyphcnt ) {
	sf->glyphs = realloc(sf->glyphs,cnt*sizeof(SplineChar *));
	for ( i=sf->glyphcnt; i<cnt; ++i )
	    sf->glyphs[i] = NULL;
	sf->glyphcnt = sf->glyphmax = cnt;
    }
    while ( (sc = SFDGetChar(asfd,&temp,true))!=NULL ) {
	ssf = sf;
	for ( k=0; k<sf->subfontcnt; ++k ) {
	    if ( sc->orig_pos<sf->subfonts[k]->glyphcnt ) {
		ssf = sf->subfonts[k];
		if ( SCWorthOutputting(ssf->glyphs[sc->orig_pos]))
	break;
	    }
	}
	if ( sc->orig_pos<ssf->glyphcnt ) {
	    if ( ssf->glyphs[sc->orig_pos]!=NULL )
		SplineCharFree(ssf->glyphs[sc->orig_pos]);
	    ssf->glyphs[sc->orig_pos] = sc;
	    sc->parent = ssf;
	    sc->changed = true;
	}
    }
    sf->changed = true;
    SFDFixupRefs(sf);
return(true);
}


static void *SFDUnPickle(FILE *sfd, int python_data_has_lists) {
    int ch, quoted;
    static int max = 0;
    static char *buf = NULL;
    char *pt, *end;
    int cnt;

    pt = buf; end = buf+max;
    while ( (ch=nlgetc(sfd))!='"' && ch!='\n' && ch!=EOF );
    if ( ch!='"' )
return( NULL );

    quoted = false;
    while ( ((ch=nlgetc(sfd))!='"' || quoted) && ch!=EOF ) {
	if ( !quoted && ch=='\\' )
	    quoted = true;
	else {
	    if ( pt>=end ) {
		cnt = pt-buf;
		buf = realloc(buf,(max+=200)+1);
		pt = buf+cnt;
		end = buf+max;
	    }
	    *pt++ = ch;
	    quoted = false;
	}
    }
    if ( pt==buf )
return( NULL );
    *pt='\0';
#ifdef _NO_PYTHON
return( copy(buf));
#else
return( PyFF_UnPickleMeToObjects(buf));
#endif
    /* buf is a static buffer, I don't free it, I'll reuse it next time */
}


static void SFDFixupUndoRefs(SplineFont *sf) {
    int i=0;
    Undoes *undo = 0;

    for ( i=0; i<sf->glyphcnt; ++i ) {
	if ( sf->glyphs[i]!=NULL ) {
	    SplineChar *sc = sf->glyphs[i];
	    int layer = 0;
	    for ( layer=0; layer<sc->layer_cnt; ++layer ) {
		if( sc->layers[layer].undoes ) {
		    undo = sc->layers[layer].undoes;
		    SFDFixupUndoRefsUndoList( sf, undo );
		}
		if( sc->layers[layer].redoes ) {
		    undo = sc->layers[layer].redoes;
		    SFDFixupUndoRefsUndoList( sf, undo );
		}
	    }
	}
    }

}


static RefChar *SFDGetRef(FILE *sfd, int was_enc) {
    RefChar *rf;
    int temp=0, ch;

    rf = RefCharCreate();
    getint(sfd,&rf->orig_pos);
    rf->encoded = was_enc;
    if ( getint(sfd,&temp))
	rf->unicode_enc = temp;
    while ( isspace(ch=nlgetc(sfd)));
    if ( ch=='S' ) rf->selected = true;
    getreal(sfd,&rf->transform[0]);
    getreal(sfd,&rf->transform[1]);
    getreal(sfd,&rf->transform[2]);
    getreal(sfd,&rf->transform[3]);
    getreal(sfd,&rf->transform[4]);
    getreal(sfd,&rf->transform[5]);
    while ( (ch=nlgetc(sfd))==' ');
    ungetc(ch,sfd);
    if ( isdigit(ch) ) {
	getint(sfd,&temp);
	rf->use_my_metrics = temp&1;
	rf->round_translation_to_grid = (temp&2)?1:0;
	rf->point_match = (temp&4)?1:0;
	if ( rf->point_match ) {
	    getsint(sfd,(int16 *) &rf->match_pt_base);
	    getsint(sfd,(int16 *) &rf->match_pt_ref);
	    while ( (ch=nlgetc(sfd))==' ');
	    if ( ch=='O' )
		rf->point_match_out_of_date = true;
	    else
		ungetc(ch,sfd);
	}
    }
return( rf );
}


static OTLookup *SFD_ParseNestedLookup(FILE *sfd, SplineFont *sf, int old) {
    uint32 tag;
    int ch, isgpos;
    OTLookup *otl;
    char *name;

    while ( (ch=nlgetc(sfd))==' ' );
    if ( ch=='~' )
return( NULL );
    else if ( old ) {
	if ( ch!='\'' )
return( NULL );

	ungetc(ch,sfd);
	tag = gettag(sfd);
return( (OTLookup *) (intpt) tag );
    } else {
	ungetc(ch,sfd);
	name = SFDReadUTF7Str(sfd);
	if ( name==NULL )
return( NULL );
	for ( isgpos=0; isgpos<2; ++isgpos ) {
	    for ( otl=isgpos ? sf->gpos_lookups : sf->gsub_lookups; otl!=NULL; otl=otl->next ) {
		if ( strcmp(name,otl->lookup_name )==0 )
	goto break2;
	    }
	}
	break2:
	free(name);
return( otl );
    }
}


SplineChar *SFDReadOneChar(SplineFont *cur_sf,const char *name) {
    FILE *sfd;
    SplineChar *sc=NULL;
    char oldloc[25], tok[2000];
    uint32 pos;
    SplineFont sf;
    LayerInfo layers[2];
    double version;
    int had_layer_cnt=false;
    int chars_seen = false;

    if ( cur_sf->save_to_dir ) {
	snprintf(tok,sizeof(tok),"%s/" FONT_PROPS,cur_sf->filename);
	sfd = fopen(tok,"r");
    } else
	sfd = fopen(cur_sf->filename,"r");
    if ( sfd==NULL )
return( NULL );
    locale_t tmplocale; locale_t oldlocale; // Declare temporary locale storage.
    switch_to_c_locale(&tmplocale, &oldlocale); // Switch to the C locale temporarily and cache the old locale.

    memset(&sf,0,sizeof(sf));
    memset(&layers,0,sizeof(layers));
    sf.layer_cnt = 2;
    sf.layers = layers;
    sf.ascent = 800; sf.descent = 200;
    if ( cur_sf->cidmaster ) cur_sf = cur_sf->cidmaster;
    if ( (version = SFDStartsCorrectly(sfd,tok))>=2 ) {
	sf.sfd_version = version;
	sf.gpos_lookups = cur_sf->gpos_lookups;
	sf.gsub_lookups = cur_sf->gsub_lookups;
	sf.anchor = cur_sf->anchor;
	pos = ftell(sfd);
	while ( getname(sfd,tok)!=-1 ) {
	    if ( strcmp(tok,"StartChar:")==0 ) {
		if ( getname(sfd,tok)==1 && strcmp(tok,name)==0 ) {
		    fseek(sfd,pos,SEEK_SET);
		    sc = SFDGetChar(sfd,&sf,had_layer_cnt);
	break;
		}
	    } else if ( strmatch(tok,"BeginChars:")==0 ) {
		chars_seen = true;
	    } else if ( chars_seen ) {
		/* Don't try to look for things in the file header any more */
		/* The "Layer" keyword has a different meaning in this context */
	    } else if ( strmatch(tok,"Order2:")==0 ) {
		int order2;
		getint(sfd,&order2);
		sf.grid.order2 = order2;
		sf.layers[ly_back].order2 = order2;
		sf.layers[ly_fore].order2 = order2;
	    } else if ( strmatch(tok,"LayerCount:")==0 ) {
		had_layer_cnt = true;
		getint(sfd,&sf.layer_cnt);
		if ( sf.layer_cnt>2 ) {
		    sf.layers = calloc(sf.layer_cnt,sizeof(LayerInfo));
		}
	    } else if ( strmatch(tok,"Layer:")==0 ) {
		int layer, o2;
		getint(sfd,&layer);
		getint(sfd,&o2);
		if ( layer<sf.layer_cnt )
		    sf.layers[layer].order2 = o2;
		free( SFDReadUTF7Str(sfd));
	    } else if ( strmatch(tok,"MultiLayer:")==0 ) {
		int ml;
		getint(sfd,&ml);
		sf.multilayer = ml;
	    } else if ( strmatch(tok,"StrokedFont:")==0 ) {
		int stk;
		getint(sfd,&stk);
		sf.strokedfont = stk;
	    } else if ( strmatch(tok,"Ascent:")==0 ) {
		getint(sfd,&sf.ascent);
	    } else if ( strmatch(tok,"Descent:")==0 ) {
		getint(sfd,&sf.descent);
	    } else if ( strmatch(tok,"InvalidEm:")==0 ) {
		getint(sfd,&sf.invalidem);
	    }
	    pos = ftell(sfd);
	}
    }
    fclose(sfd);
    if ( cur_sf->save_to_dir ) {
	if ( sc!=NULL ) IError("Read a glyph from font.props");
	/* Doesn't work for CID keyed, nor for mm */
	snprintf(tok,sizeof(tok),"%s/%s" GLYPH_EXT,cur_sf->filename,name);
	sfd = fopen(tok,"r");
	if ( sfd!=NULL ) {
	    sc = SFDGetChar(sfd,&sf,had_layer_cnt);
	    fclose(sfd);
	}
    }

    if ( sf.layers!=layers )
	free(sf.layers);
    switch_to_old_locale(&tmplocale, &oldlocale); // Switch to the cached locale.
return( sc );
}


static void SFDDumpDeviceTable(FILE *sfd,DeviceTable *adjust) {
    int i;

    if ( adjust==NULL )
return;
    fprintf( sfd, "{" );
    if ( adjust->corrections!=NULL ) {
	fprintf( sfd, "%d-%d ", adjust->first_pixel_size, adjust->last_pixel_size );
	for ( i=0; i<=adjust->last_pixel_size-adjust->first_pixel_size; ++i )
	    fprintf( sfd, "%s%d", i==0?"":",", adjust->corrections[i]);
    }
    fprintf( sfd, "}" );
}


static void SFDParseMathValueRecord(FILE *sfd,int16 *value,DeviceTable **devtab) {
    getsint(sfd,value);
    *devtab = SFDReadDeviceTable(sfd,NULL);
}


static void SFDDumpTtfInstrs(FILE *sfd,SplineChar *sc)
{
    SFDDumpTtfInstrsExplicit( sfd, sc->ttf_instrs,sc->ttf_instrs_len );
}


static void SCDefaultInterpolation(SplineChar *sc) {
    SplineSet *cur;
    SplinePoint *sp;
    /* We used not to store the dontinterpolate bit. We used to use the */
    /* presence or absence of instructions as that flag */

    if ( sc->ttf_instrs_len!=0 ) {
	for ( cur=sc->layers[ly_fore].splines; cur!=NULL; cur=cur->next ) {
	    for ( sp=cur->first; ; ) {
		if ( sp->ttfindex!=0xffff && SPInterpolate(sp))
		    sp->dontinterpolate = true;
		if ( sp->next==NULL )
	    break;
		sp=sp->next->to;
		if ( sp==cur->first )
	    break;
	    }
	}
    }
}


SplineFont *SFDirRead(char *filename) {
return( SFD_Read(filename,NULL,true));
}


static void appendnames(char *dest,char *dir,const char *dir_char,char *name,const char *ext ) {
    strcpy(dest,dir);
    dest += strlen(dest);
    strcpy(dest,dir_char);
    dest += strlen(dest);
    /* Some file systems are case-insensitive, so we can't just */
    /* copy the glyph name blindly (else "A" and "a" would map to the same file */
    for (;;) {
	if ( strncmp(name,"uni",3)==0 && ishexdigit(name[3]) && ishexdigit(name[4]) &&
		ishexdigit(name[5]) && ishexdigit(name[6])) {
	    /* but in a name like uni00AD case is irrelevant. Even under unix its */
	    /*  the same as uni00ad -- and it looks ugly */
	    strncpy(dest,name,7);
	    dest += 7; name += 7;
	    while ( ishexdigit(name[0]) && ishexdigit(name[1]) &&
		    ishexdigit(name[2]) && ishexdigit(name[3]) ) {
		strncpy(dest,name,4);
		dest += 4; name += 4;
	    }
	} else if ( name[0]=='u' && ishexdigit(name[1]) && ishexdigit(name[2]) &&
		ishexdigit(name[3]) && ishexdigit(name[4]) &&
		ishexdigit(name[5]) ) {
	    strncpy(dest,name,5);
	    dest += 5; name += 5;
	} else
    break;
	if ( *name!='_' )
    break;
	*dest++ = '_';
	++name;
    }
    while ( *name ) {
	if ( isupper(*name)) {
	    *dest++ = '_';
	    *dest++ = *name;
	} else
	    *dest++ = *name;
	++name;
    }
    strcpy(dest,ext);
}


static int gethex(FILE *sfd, uint32 *val) {
    char tokbuf[100]; int ch;
    char *pt=tokbuf, *end = tokbuf+100-2;

    while ( isspace(ch = nlgetc(sfd)));
    if ( ch=='#' )
	ch = nlgetc(sfd);
    if ( ch=='-' || ch=='+' ) {
	*pt++ = ch;
	ch = nlgetc(sfd);
    }
    if ( ch=='0' ) {
	ch = nlgetc(sfd);
	if ( ch=='x' || ch=='X' )
	    ch = nlgetc(sfd);
	else {
	    ungetc(ch,sfd);
	    ch = '0';
	}
    }
    while ( isdigit(ch) || (ch>='a' && ch<='f') || (ch>='A' && ch<='F')) {
	if ( pt<end ) *pt++ = ch;
	ch = nlgetc(sfd);
    }
    *pt='\0';
    ungetc(ch,sfd);
    *val = strtoul(tokbuf,NULL,16);
return( pt!=tokbuf?1:ch==EOF?-1: 0 );
}


enum MIME SFDGetImage2MIME(FILE *sfd) {
    char mime[128];

    if ( !getname(sfd, mime) ) {
        IError("Failed to get a MIME type, file corrupt");
        return UNKNOWN;
    }

    if ( !(strmatch(mime, "image/png")==0) ) {
        IError("MIME type received—%s—is not recognized", mime);
        return UNKNOWN;
    }

    return PNG;
}


static int SFD_MIDump(SplineFont *sf,EncMap *map,char *dirname,	int mm_pos) {
    char *instance = malloc(strlen(dirname)+1+10+20);
    char *fontprops;
    FILE *ssfd;
    int err = false;

    /* I'd like to use the font name, but the order of the instances is */
    /*  crucial and I must enforce an ordering on them */
    sprintf( instance,"%s/mm%d" INSTANCE_EXT, dirname, mm_pos );
    GFileMkDir(instance, 0755);
    fontprops = malloc(strlen(instance)+strlen("/" FONT_PROPS)+1);
    strcpy(fontprops,instance); strcat(fontprops,"/" FONT_PROPS);
    ssfd = fopen( fontprops,"w");
    if ( ssfd!=NULL ) {
	err |= SFD_Dump(ssfd,sf,map,NULL,true,instance);
	if ( ferror(ssfd) ) err = true;
	if ( fclose(ssfd)) err = true;
    } else
	err = true;
    free(fontprops);
    free(instance);
return( err );
}


static struct ttf_table *SFDGetTtfTable(FILE *sfd, SplineFont *sf,struct ttf_table *lasttab[2]) {
    /* We've read the TtfTable token, it is followed by a tag and a byte count */
    /* and then the instructions in enc85 format */
    int i,len;
    int which;
    struct enc85 dec;
    struct ttf_table *tab = chunkalloc(sizeof(struct ttf_table));

    memset(&dec,'\0', sizeof(dec)); dec.pos = -1;
    dec.sfd = sfd;

    tab->tag = gettag(sfd);

    if ( tab->tag==CHR('f','p','g','m') || tab->tag==CHR('p','r','e','p') ||
	    tab->tag==CHR('c','v','t',' ') || tab->tag==CHR('m','a','x','p'))
	which = 0;
    else
	which = 1;

    getint(sfd,&len);
    tab->data = malloc(len);
    tab->len = len;
    for ( i=0; i<len; ++i )
	tab->data[i] = Dec85(&dec);

    if ( lasttab[which]!=NULL )
	lasttab[which]->next = tab;
    else if ( which==0 )
	sf->ttf_tables = tab;
    else
	sf->ttf_tab_saved = tab;
    lasttab[which] = tab;
return( tab );
}


static SplineFont *SlurpRecovery(FILE *asfd,char *tok,int sizetok) {
    char *pt; int ch;
    SplineFont *sf;

    ch=nlgetc(asfd);
    ungetc(ch,asfd);
    if ( ch=='B' ) {
	if ( getname(asfd,tok)!=1 )
return(NULL);
	if ( strcmp(tok,"Base:")!=0 )
return(NULL);
	while ( isspace(ch=nlgetc(asfd)) && ch!=EOF && ch!='\n' );
	for ( pt=tok; ch!=EOF && ch!='\n'; ch = nlgetc(asfd) )
	    if ( pt<tok+sizetok-2 )
		*pt++ = ch;
	*pt = '\0';
	sf = LoadSplineFont(tok,0);
    } else {
	sf = SplineFontNew();
	sf->onlybitmaps = false;
	strcpy(tok,"<New File>");
    }
    if ( sf==NULL )
return( NULL );

    if ( !ModSF(asfd,sf)) {
	SplineFontFree(sf);
return( NULL );
    }
return( sf );
}


void SFAutoSave(SplineFont *sf,EncMap *map) {
    int i, k, max;
    FILE *asfd;
    SplineFont *ssf;

    if ( no_windowing_ui )		/* No autosaves when just scripting */
return;

    if ( sf->cidmaster!=NULL ) sf=sf->cidmaster;
    asfd = fopen(sf->autosavename,"w");
    if ( asfd==NULL )
return;

    max = sf->glyphcnt;
    for ( i=0; i<sf->subfontcnt; ++i )
	if ( sf->subfonts[i]->glyphcnt>max ) max = sf->subfonts[i]->glyphcnt;

    locale_t tmplocale; locale_t oldlocale; // Declare temporary locale storage.
    switch_to_c_locale(&tmplocale, &oldlocale); // Switch to the C locale temporarily and cache the old locale.
    if ( !sf->new && sf->origname!=NULL )	/* might be a new file */
	fprintf( asfd, "Base: %s%s\n", sf->origname,
		sf->compression==0?"":compressors[sf->compression-1].ext );
    fprintf( asfd, "Encoding: %s\n", map->enc->enc_name );
    fprintf( asfd, "UnicodeInterp: %s\n", unicode_interp_names[sf->uni_interp]);
    fprintf( asfd, "LayerCount: %d\n", sf->layer_cnt );
    for ( i=0; i<sf->layer_cnt; ++i ) {
	fprintf( asfd, "Layer: %d %d ", i, sf->layers[i].order2 );
	SFDDumpUTF7Str(asfd,sf->layers[i].name);
	putc('\n',asfd);
    }
    if ( sf->multilayer )
	fprintf( asfd, "MultiLayer: %d\n", sf->multilayer );
    fprintf( asfd, "BeginChars: %d\n", max );
    for ( i=0; i<max; ++i ) {
	ssf = sf;
	for ( k=0; k<sf->subfontcnt; ++k ) {
	    if ( i<sf->subfonts[k]->glyphcnt ) {
		ssf = sf->subfonts[k];
		if ( SCWorthOutputting(ssf->glyphs[i]))
	break;
	    }
	}
	if ( ssf->glyphs[i]!=NULL && ssf->glyphs[i]->changed )
	    SFDDumpChar( asfd,ssf->glyphs[i],map,NULL,false,1);
    }
    fprintf( asfd, "EndChars\n" );
    fprintf( asfd, "EndSplineFont\n" );
    fclose(asfd);
    switch_to_old_locale(&tmplocale, &oldlocale); // Switch to the cached locale.
    sf->changed_since_autosave = false;
}


static char *SFDParseMMSubroutine(FILE *sfd) {
    char buffer[400], *sofar=calloc(1,1);
    const char *endtok = "EndMMSubroutine";
    int len = 0, blen, first=true;

    while ( fgets(buffer,sizeof(buffer),sfd)!=NULL ) {
	if ( strncmp(buffer,endtok,strlen(endtok))==0 )
    break;
	if ( first ) {
	    first = false;
	    if ( strcmp(buffer,"\n")==0 )
    continue;
	}
	blen = strlen(buffer);
	sofar = realloc(sofar,len+blen+1);
	strcpy(sofar+len,buffer);
	len += blen;
    }
    if ( len>0 && sofar[len-1]=='\n' )
	sofar[len-1] = '\0';
return( sofar );
}


static SplineSet *SFDGetSplineSet(FILE *sfd,int order2) {
    SplinePointList *cur=NULL, *head=NULL;
    BasePoint current;
    real stack[100];
    int sp=0;
    SplinePoint *pt = NULL;
    int ch;
	int ch2;
    char tok[100];
    int ttfindex = 0;
    int lastacceptable;
    int flags = 0, tmp;

    current.x = current.y = 0;
    lastacceptable = 0;
    while ( 1 ) {

	while ( getreal(sfd,&stack[sp])==1 )
	    if ( sp<99 )
		++sp;
	while ( isspace(ch=nlgetc(sfd)));
	if ( ch=='E' || ch=='e' || ch==EOF )
    break;
	if ( ch=='S' ) {
	    ungetc(ch,sfd);
	    SFDGetSpiros(sfd,cur);
    continue;
	} else if (( ch=='N' ) &&
	    nlgetc(sfd)=='a' &&	/* a */
	    nlgetc(sfd)=='m' &&	/* m */
	    nlgetc(sfd)=='e' &&	/* e */
	    nlgetc(sfd)=='d' ) /* d */ {
	    ch2 = nlgetc(sfd);		/* : */
		// We are either fetching a splineset name (Named:) or a point name (NamedP:).
		if (ch2=='P') { if ((nlgetc(sfd)==':') && (pt!=NULL)) { if (pt->name!=NULL) {free(pt->name);} pt->name = SFDReadUTF7Str(sfd); } }
		else if (ch2==':') { if (cur != NULL) cur->contour_name = SFDReadUTF7Str(sfd); else { char * freetmp = SFDReadUTF7Str(sfd); free(freetmp); freetmp = NULL; } }
        continue;
	} else if ( ch=='P' && PeekMatch(sfd,"ath") ) {
	    int flags;
	    nlgetc(sfd);		/* a */
	    nlgetc(sfd);		/* t */
	    nlgetc(sfd);		/* h */
	    if (PeekMatch(sfd,"Flags:")) {
	      nlgetc(sfd);		/* F */
	      nlgetc(sfd);		/* l */
	      nlgetc(sfd);		/* a */
	      nlgetc(sfd);		/* g */
	      nlgetc(sfd);		/* s */
	      nlgetc(sfd);		/* : */
	      getint(sfd,&flags);
	      if (cur != NULL) cur->is_clip_path = flags&1;
	    } else if (PeekMatch(sfd,"Start:")) {
	      nlgetc(sfd);		/* S */
	      nlgetc(sfd);		/* t */
	      nlgetc(sfd);		/* a */
	      nlgetc(sfd);		/* r */
	      nlgetc(sfd);		/* t */
	      nlgetc(sfd);		/* : */
	      getint(sfd,&flags);
	      if (cur != NULL) cur->start_offset = flags;
	    }
	}
	pt = NULL;
	if ( ch=='l' || ch=='m' ) {
	    if ( sp>=2 ) {
		current.x = stack[sp-2];
		current.y = stack[sp-1];
		sp -= 2;
		pt = chunkalloc(sizeof(SplinePoint));
		pt->me = current;
		pt->noprevcp = true; pt->nonextcp = true;
		if ( ch=='m' ) {
		    SplinePointList *spl = chunkalloc(sizeof(SplinePointList));
		    spl->first = spl->last = pt;
		    spl->start_offset = 0;
		    if ( cur!=NULL ) {
			if ( !(flags & SFD_PTFLAG_FORCE_OPEN_PATH) && SFDCloseCheck(cur,order2) )
			    --ttfindex;
			cur->next = spl;
		    } else
			head = spl;
		    cur = spl;
		} else {
		    if ( cur!=NULL && cur->first!=NULL && (cur->first!=cur->last || cur->first->next==NULL) ) {
			if ( cur->last->nextcpindex==0xfffe )
			    cur->last->nextcpindex = 0xffff;
			SplineMake(cur->last,pt,order2);
			cur->last->nonextcp = 1;
			pt->noprevcp = 1;
			cur->last = pt;
		    }
		}
	    } else
		sp = 0;
	} else if ( ch=='c' ) {
	    if ( sp>=6 ) {
		current.x = stack[sp-2];
		current.y = stack[sp-1];

		if ( cur!=NULL && cur->first!=NULL && (cur->first!=cur->last || cur->first->next==NULL) ) {
		    cur->last->nextcp.x = stack[sp-6];
		    cur->last->nextcp.y = stack[sp-5];
		    cur->last->nonextcp = false;
		    pt = chunkalloc(sizeof(SplinePoint));
		    pt->prevcp.x = stack[sp-4];
		    pt->prevcp.y = stack[sp-3];
		    pt->me = current;
		    pt->nonextcp = true;
		    if ( cur->last->nextcpindex==0xfffe )
			cur->last->nextcpindex = ttfindex++;
		    else if ( cur->last->nextcpindex!=0xffff )
			ttfindex = cur->last->nextcpindex+1;
		    SplineMake(cur->last,pt,order2);
		    cur->last = pt;
		}

		sp -= 6;
	    } else
		sp = 0;
	}
	if ( pt!=NULL ) {
	    getint(sfd,&flags);

	    pt->pointtype = (flags & SFD_PTFLAG_TYPE_MASK);
	    pt->selected  = (flags & SFD_PTFLAG_IS_SELECTED) > 0;
	    pt->nextcpdef = (flags & SFD_PTFLAG_NEXTCP_IS_DEFAULT) > 0;
	    pt->prevcpdef = (flags & SFD_PTFLAG_PREVCP_IS_DEFAULT) > 0;
	    pt->roundx    = (flags & SFD_PTFLAG_ROUND_IN_X) > 0;
	    pt->roundy    = (flags & SFD_PTFLAG_ROUND_IN_Y) > 0;
	    pt->dontinterpolate = (flags & SFD_PTFLAG_INTERPOLATE_NEVER) > 0;
	    if ( pt->prev!=NULL )
		pt->prev->acceptableextrema = (flags & SFD_PTFLAG_PREV_EXTREMA_MARKED_ACCEPTABLE) > 0;
	    else
		lastacceptable = (flags & SFD_PTFLAG_PREV_EXTREMA_MARKED_ACCEPTABLE) > 0;
	    if ( flags&0x80 )
		pt->ttfindex = 0xffff;
	    else
		pt->ttfindex = ttfindex++;
	    pt->nextcpindex = 0xfffe;
	    ch = nlgetc(sfd);
	    if ( ch=='x' ) {
		pt->hintmask = chunkalloc(sizeof(HintMask));
		SFDGetHintMask(sfd,pt->hintmask);
	    } else if ( ch!=',' )
		ungetc(ch,sfd);
	    else {
		ch = nlgetc(sfd);
		if ( ch==',' )
		    pt->ttfindex = 0xfffe;
		else {
		    ungetc(ch,sfd);
		    getint(sfd,&tmp);
		    pt->ttfindex = tmp;
		    nlgetc(sfd);	/* skip comma */
		    if ( tmp!=-1 )
			ttfindex = tmp+1;
		}
		ch = nlgetc(sfd);
		if ( ch=='\r' || ch=='\n' )
		    ungetc(ch,sfd);
		else {
		    ungetc(ch,sfd);
		    getint(sfd,&tmp);
		    pt->nextcpindex = tmp;
		    if ( tmp!=-1 )
			ttfindex = tmp+1;
		}
	    }
	} else
	    flags = 0;
    }
    if ( cur!=NULL && !(flags & SFD_PTFLAG_FORCE_OPEN_PATH) )
	SFDCloseCheck(cur,order2);
    if ( lastacceptable && cur->last->prev!=NULL )
	cur->last->prev->acceptableextrema = true;
    getname(sfd,tok);
return( head );
}


static void SFDConsumeUntil( FILE *sfd, const char** terminators ) {

    char* line = 0;
    while((line = getquotedeol( sfd ))) {
        const char** tp = terminators;
        for( ; tp && *tp; ++tp ) {
            if( !strnmatch( line, *tp, strlen( *tp ))) {
                free(line);
                return;
            }
        }
        free(line);
    }
}


Undoes *SFDGetUndo( FILE *sfd, SplineChar *sc,
		    const char* startTag,
		    int current_layer )
{
    Undoes *u = 0;
    char tok[2000];
    int i;
    RefChar *lastr=NULL;
    ImageList *lasti=NULL;
    AnchorPoint *lastap = NULL;
    GuidelineSet *lastgl = NULL;
    SplineChar* tsc = 0;

    if ( getname(sfd,tok)!=1 )
        return( NULL );
    if ( strcmp(tok, startTag) )
        return( NULL );

    u = chunkalloc(sizeof(Undoes));
    u->undotype = ut_state;
    u->layer = UNDO_LAYER_UNKNOWN;

    while ( 1 )
    {
        if ( getname(sfd,tok)!=1 ) {
            chunkfree(u,sizeof(Undoes));
            return( NULL );
        }

        if ( !strmatch(tok,"EndUndoOperation")
            || !strmatch(tok,"EndRedoOperation"))
        {
            if( u->undotype == ut_hints ) {
                if( tsc ) {
                    u->u.state.hints = UHintCopy(tsc,1);
                    SplineCharFree( tsc );
                }
            }

            return u;
        }
	if ( !strmatch(tok,"Index:")) {
            getint(sfd,&i);
        }
	if ( !strmatch(tok,"Type:")) {
            getint(sfd,&i);
            u->undotype = i;
            if( u->undotype == ut_hints ) {
                tsc = SplineCharCopy( sc, 0, 0 );
                tsc->hstem = 0;
                tsc->vstem = 0;
                tsc->dstem = 0;
            }
        }
        if ( !strmatch(tok,"WasModified:")) {
            getint(sfd,&i);
            u->was_modified = i;
        }
        if ( !strmatch(tok,"WasOrder2:")) {
            getint(sfd,&i);
            u->was_order2 = i;
        }
        if ( !strmatch(tok,"Layer:")) {
            getint(sfd,&i);
            u->layer = i;
        }

        switch( u->undotype )
        {
	case ut_tstate:
	case ut_state:
	    if ( !strmatch(tok,"Width:"))          { getint(sfd,&i); u->u.state.width = i; }
	    if ( !strmatch(tok,"VWidth:"))         { getint(sfd,&i); u->u.state.vwidth = i; }
	    if ( !strmatch(tok,"LBearingChange:")) { getint(sfd,&i); u->u.state.lbearingchange = i; }
	    if ( !strmatch(tok,"UnicodeEnc:"))     { getint(sfd,&i); u->u.state.unicodeenc = i; }
	    if ( !strmatch(tok,"Charname:"))       { u->u.state.charname = getquotedeol(sfd); }
	    if ( !strmatch(tok,"Comment:"))        { u->u.state.comment  = getquotedeol(sfd); }

	    if( !strmatch(tok,"Refer:"))
	    {
		RefChar *ref = SFDGetRef(sfd,strmatch(tok,"Ref:")==0);
		int i=0;
		for( i=0; i< ref->layer_cnt; i++ ) {
		    ref->layers[i].splines = 0;
		}
		if ( !u->u.state.refs )
		    u->u.state.refs = ref;
		else
		    lastr->next = ref;
		lastr = ref;
	    }

	    if( !strmatch(tok,"Image:"))
	    {
		ImageList *img = SFDGetImage(sfd);
		if (img != NULL) {
		if ( !u->u.state.images )
		    u->u.state.images = img;
		else
		    lasti->next = img;
		lasti = img;
		}
	    }

	    if( !strmatch(tok,"Image2:"))
	    {
#ifndef _NO_LIBPNG
		enum MIME mime = SFDGetImage2MIME(sfd);
		if (mime == PNG) {
		    ImageList *img = SFDGetImagePNG(sfd);
		    if (img != NULL) {
			if ( !u->u.state.images )
			    u->u.state.images = img;
			else
			    lasti->next = img;
			lasti = img;
		    }
		} else
#endif
	    {
		LogError(_("Image2 skipped as it uses an unsupported image type"));
		const char* im2_terminator[] = { "EndImage2", 0 };
		SFDConsumeUntil(sfd, im2_terminator);
	    }
	    }

	    if( !strmatch(tok,"Comment:")) {
		u->u.state.comment  = getquotedeol(sfd);
	    }
	    if( !strmatch(tok,"InstructionsLength:")) {
		getint(sfd,&i); u->u.state.instrs_len = i;
	    }
	    if( !strmatch(tok,"AnchorPoint:") ) {
		lastap = SFDReadAnchorPoints( sfd, sc, &(u->u.state.anchor), lastap );
	    }
	    if ( !strmatch(tok,"SplineSet")) {
		u->u.state.splines = SFDGetSplineSet(sfd,sc->layers[current_layer].order2);
	    }
	    break;
	case ut_hints:
	{
	    if ( !strmatch(tok,"HStem:") ) {
		tsc->hstem = SFDReadHints(sfd);
		tsc->hconflicts = StemListAnyConflicts(tsc->hstem);
	    }
	    else if ( !strmatch(tok,"VStem:") ) {
		tsc->vstem = SFDReadHints(sfd);
		tsc->vconflicts = StemListAnyConflicts(tsc->vstem);
	    }
	    else if( !strmatch(tok,"DStem2:"))
		tsc->dstem = SFDReadDHints( sc->parent,sfd,false );
	    else if( !strmatch(tok,"TtInstrs:")) {
		SFDGetTtInstrs(sfd,tsc);
		u->u.state.instrs = tsc->ttf_instrs;
		u->u.state.instrs_len = tsc->ttf_instrs_len;
		tsc->ttf_instrs = 0;
		tsc->ttf_instrs_len = 0;
	    }
	    break;
	}

	case ut_width:
	case ut_vwidth:
	    if( !strmatch(tok,"Width:")) {
		getint(sfd,&i); u->u.width = i;
	    }
	    break;
	default:
	break;
        }
    }

    return u;
}


void SFDGetKerns( FILE *sfd, SplineChar *sc, char* ttok ) {
    struct splinefont * sf = sc->parent;
    char tok[2001], ch;
    uint32 script = 0;
    SplineFont *sli_sf = sf->cidmaster ? sf->cidmaster : sf;

    strncpy(tok,ttok,sizeof(tok)-1);
    tok[2000]=0;

    if( strmatch(tok,"Kerns2:")==0 ||
	strmatch(tok,"VKerns2:")==0 ) {
	    KernPair *kp, *last=NULL;
	    int isv = *tok=='V';
	    int off, index;
	    struct lookup_subtable *sub;
	    int kernCount = 0;
	    if ( sf->sfd_version<2 )
		LogError(_("Found an new style kerning pair inside a version 1 (or lower) sfd file.\n") );
	    while ( fscanf(sfd,"%d %d", &index, &off )==2 ) {
		sub = SFFindLookupSubtableAndFreeName(sf,SFDReadUTF7Str(sfd));
		if ( sub==NULL ) {
		    LogError(_("KernPair with no subtable name.\n"));
	    	    break;
		}
		kernCount++;
		kp = chunkalloc(sizeof(KernPair1));
		kp->sc = (SplineChar *) (intpt) index;
		kp->kcid = true;
		kp->off = off;
		kp->subtable = sub;
		kp->next = NULL;
		while ( (ch=nlgetc(sfd))==' ' );
		ungetc(ch,sfd);
		if ( ch=='{' ) {
		    kp->adjust = SFDReadDeviceTable(sfd, NULL);
		}
		if ( last != NULL )
		    last->next = kp;
		else if ( isv )
		    sc->vkerns = kp;
		else
		    sc->kerns = kp;
		last = kp;
	    }
	    if( !kernCount ) {
//		printf("SFDGetKerns() have a BLANK KERN\n");
		sc->kerns = 0;
	    }
    } else if ( strmatch(tok,"Kerns:")==0 ||
		strmatch(tok,"KernsSLI:")==0 ||
		strmatch(tok,"KernsSLIF:")==0 ||
		strmatch(tok,"VKernsSLIF:")==0 ||
		strmatch(tok,"KernsSLIFO:")==0 ||
		strmatch(tok,"VKernsSLIFO:")==0 ) {
	    KernPair1 *kp, *last=NULL;
	    int index, off, sli, flags=0;
	    int hassli = (strmatch(tok,"KernsSLI:")==0);
	    int isv = *tok=='V';
	    int has_orig = strstr(tok,"SLIFO:")!=NULL;
	    if ( sf->sfd_version>=2 ) {
		IError( "Found an old style kerning pair inside a version 2 (or higher) sfd file." );
exit(1);
	    }
	    if ( strmatch(tok,"KernsSLIF:")==0 || strmatch(tok,"KernsSLIFO:")==0 ||
		    strmatch(tok,"VKernsSLIF:")==0 || strmatch(tok,"VKernsSLIFO:")==0 )
		hassli=2;
	    while ( (hassli==1 && fscanf(sfd,"%d %d %d", &index, &off, &sli )==3) ||
		    (hassli==2 && fscanf(sfd,"%d %d %d %d", &index, &off, &sli, &flags )==4) ||
		    (hassli==0 && fscanf(sfd,"%d %d", &index, &off )==2) ) {
		if ( !hassli )
		    sli = SFFindBiggestScriptLangIndex(sli_sf,
			    script!=0?script:SCScriptFromUnicode(sc),DEFAULT_LANG);
		if ( sli>=((SplineFont1 *) sli_sf)->sli_cnt && sli!=SLI_NESTED) {
		    static int complained=false;
		    if ( !complained )
			IError("'%s' in %s has a script index out of bounds: %d",
				isv ? "vkrn" : "kern",
				sc->name, sli );
		    sli = SFFindBiggestScriptLangIndex(sli_sf,
			    SCScriptFromUnicode(sc),DEFAULT_LANG);
		    complained = true;
		}
		kp = chunkalloc(sizeof(KernPair1));
		kp->kp.sc = (SplineChar *) (intpt) index;
		kp->kp.kcid = has_orig;
		kp->kp.off = off;
		kp->sli = sli;
		kp->flags = flags;
		kp->kp.next = NULL;
		while ( (ch=nlgetc(sfd))==' ' );
		ungetc(ch,sfd);
		if ( ch=='{' ) {
		    kp->kp.adjust = SFDReadDeviceTable(sfd, NULL);
		}
		if ( last != NULL )
		    last->kp.next = (KernPair *) kp;
		else if ( isv )
		    sc->vkerns = (KernPair *) kp;
		else
		    sc->kerns = (KernPair *) kp;
		last = kp;
	    }
    } else {
	return;
    }

    // we matched something, grab the next top level token to ttok
    getname( sfd, ttok );
}


static int gethexints(FILE *sfd, uint32 *val, int cnt) {
    int i, ch;

    for ( i=0; i<cnt; ++i ) {
	if ( i!=0 ) {
	    ch = nlgetc(sfd);
	    if ( ch!='.' ) ungetc(ch,sfd);
	}
	if ( !gethex(sfd,&val[i]))
return( false );
    }
return( true );
}


static SplineFont *SFD_GetFont( FILE *sfd,SplineFont *cidmaster,char *tok,
				int fromdir, char *dirname, float sfdversion )
{
    SplineFont *sf;
    int realcnt, i, eof, mappos=-1, ch;
    struct table_ordering *lastord = NULL;
    struct axismap *lastaxismap = NULL;
    struct named_instance *lastnamedinstance = NULL;
    int pushedbacktok = false;
    Encoding *enc = &custom;
    struct remap *remap = NULL;
    int haddupenc;
    int old_style_order2 = false;
    int had_layer_cnt=false;

    orig_pos = 0;		/* Only used for compatibility with extremely old sfd files */

    sf = SplineFontEmpty();
    if ( sfdversion>0 && sfdversion<2 ) {
	/* If it's an old style sfd file with old style features we need some */
	/*  extra data space to do the conversion from old to new */
	sf = realloc(sf,sizeof(SplineFont1));
	memset(((uint8 *) sf) + sizeof(SplineFont),0,sizeof(SplineFont1)-sizeof(SplineFont));
    }
    sf->sfd_version = sfdversion;
    sf->cidmaster = cidmaster;
    sf->uni_interp = ui_unset;
	SFD_GetFontMetaDataData d;
	SFD_GetFontMetaDataData_Init( &d );
    while ( 1 ) {
	if ( pushedbacktok )
	    pushedbacktok = false;
	else if ( (eof = getname(sfd,tok))!=1 ) {
	    if ( eof==-1 )
    break;
	    geteol(sfd,tok);
    continue;
	}

	bool wasMetadata = SFD_GetFontMetaData( sfd, tok, sf, &d );
	had_layer_cnt = d.had_layer_cnt;
        if( wasMetadata )
        {
            // we have handled the token entirely
            // inside SFD_GetFontMetaData() move to next token.
            continue;
        }

	if ( strmatch(tok,"DisplaySize:")==0 )
	{
	    getint(sfd,&sf->display_size);
	}
	else if ( strmatch(tok,"DisplayLayer:")==0 )
	{
	    getint(sfd,&sf->display_layer);
	}
	else if ( strmatch(tok,"ExtremaBound:")==0 )
	{
	    getint(sfd,&sf->extrema_bound);
	}
	else if ( strmatch(tok,"WidthSeparation:")==0 )
	{
	    getint(sfd,&sf->width_separation);
	}
	else if ( strmatch(tok,"WinInfo:")==0 )
	{
	    int temp1, temp2;
	    getint(sfd,&sf->top_enc);
	    getint(sfd,&temp1);
	    getint(sfd,&temp2);
	    if ( sf->top_enc<=0 ) sf->top_enc=-1;
	    if ( temp1<=0 ) temp1 = 16;
	    if ( temp2<=0 ) temp2 = 4;
	    sf->desired_col_cnt = temp1;
	    sf->desired_row_cnt = temp2;
	}
	else if ( strmatch(tok,"AntiAlias:")==0 )
	{
	    int temp;
	    getint(sfd,&temp);
	    sf->display_antialias = temp;
	}
	else if ( strmatch(tok,"FitToEm:")==0 )
	{
	    int temp;
	    getint(sfd,&temp);
	    sf->display_bbsized = temp;
	}
	else if ( strmatch(tok,"OnlyBitmaps:")==0 )
	{
	    int temp;
	    getint(sfd,&temp);
	    sf->onlybitmaps = temp;
	}
	else if ( strmatch(tok,"Order2:")==0 )
	{
	    getint(sfd,&old_style_order2);
	    sf->grid.order2 = old_style_order2;
	    sf->layers[ly_back].order2 = old_style_order2;
	    sf->layers[ly_fore].order2 = old_style_order2;
	}
	else if ( strmatch(tok,"GridOrder2:")==0 )
	{
	    int o2;
	    getint(sfd,&o2);
	    sf->grid.order2 = o2;
	}
	else if ( strmatch(tok,"Encoding:")==0 )
	{
	    enc = SFDGetEncoding(sfd,tok);
	    if ( sf->map!=NULL ) sf->map->enc = enc;
	}
	else if ( strmatch(tok,"OldEncoding:")==0 )
	{
	    /* old_encname =*/ (void) SFDGetEncoding(sfd,tok);
	}
	else if ( strmatch(tok,"UnicodeInterp:")==0 )
	{
	    sf->uni_interp = SFDGetUniInterp(sfd,tok,sf);
	}
	else if ( strmatch(tok,"NameList:")==0 )
	{
	    SFDGetNameList(sfd,tok,sf);
	}
	else if ( strmatch(tok,"Compacted:")==0 )
	{
	    int temp;
	    getint(sfd,&temp);
	    sf->compacted = temp;
	}
	else if ( strmatch(tok,"Registry:")==0 )
	{
	    geteol(sfd,tok);
	    sf->cidregistry = copy(tok);
	}

	//////////

	else if ( strmatch(tok,"Ordering:")==0 ) {
	    geteol(sfd,tok);
	    sf->ordering = copy(tok);
	} else if ( strmatch(tok,"Supplement:")==0 ) {
	    getint(sfd,&sf->supplement);
	} else if ( strmatch(tok,"RemapN:")==0 ) {
	    int n;
	    getint(sfd,&n);
	    remap = calloc(n+1,sizeof(struct remap));
	    remap[n].infont = -1;
	    mappos = 0;
	    if ( sf->map!=NULL ) sf->map->remap = remap;
	} else if ( strmatch(tok,"Remap:")==0 ) {
	    uint32 f, l; int p;
	    gethex(sfd,&f);
	    gethex(sfd,&l);
	    getint(sfd,&p);
	    if ( remap!=NULL && remap[mappos].infont!=-1 ) {
		remap[mappos].firstenc = f;
		remap[mappos].lastenc = l;
		remap[mappos].infont = p;
		mappos++;
	    }
	} else if ( strmatch(tok,"CIDVersion:")==0 ) {
	    real temp;
	    getreal(sfd,&temp);
	    sf->cidversion = temp;
	} else if ( strmatch(tok,"Grid")==0 ) {
	    sf->grid.splines = SFDGetSplineSet(sfd,sf->grid.order2);
	} else if ( strmatch(tok,"ScriptLang:")==0 ) {
	    int i,j,k;
	    int imax, jmax, kmax;
	    if ( sf->sfd_version==0 || sf->sfd_version>=2 ) {
		IError( "Script lang lists should not happen in version 2 sfd files." );
                SplineFontFree(sf);
                return NULL;
	    }
	    getint(sfd,&imax);
	    ((SplineFont1 *) sf)->sli_cnt = imax;
	    ((SplineFont1 *) sf)->script_lang = malloc((imax+1)*sizeof(struct script_record *));
	    ((SplineFont1 *) sf)->script_lang[imax] = NULL;
	    for ( i=0; i<imax; ++i ) {
		getint(sfd,&jmax);
		((SplineFont1 *) sf)->script_lang[i] = malloc((jmax+1)*sizeof(struct script_record));
		((SplineFont1 *) sf)->script_lang[i][jmax].script = 0;
		for ( j=0; j<jmax; ++j ) {
		    ((SplineFont1 *) sf)->script_lang[i][j].script = gettag(sfd);
		    getint(sfd,&kmax);
		    ((SplineFont1 *) sf)->script_lang[i][j].langs = malloc((kmax+1)*sizeof(uint32));
		    ((SplineFont1 *) sf)->script_lang[i][j].langs[kmax] = 0;
		    for ( k=0; k<kmax; ++k ) {
			((SplineFont1 *) sf)->script_lang[i][j].langs[k] = gettag(sfd);
		    }
		}
	    }
	} else if ( strmatch(tok,"TeXData:")==0 ) {
	    int temp;
	    getint(sfd,&temp);
	    sf->texdata.type = temp;
	    getint(sfd, &temp);
	    if ( sf->design_size==0 ) {
	    	sf->design_size = (5*temp+(1<<18))>>19;
	    }
	    for ( i=0; i<22; ++i ) {
		int foo;
		getint(sfd,&foo);
		sf->texdata.params[i]=foo;
	    }
	} else if ( strnmatch(tok,"AnchorClass",11)==0 ) {
	    char *name;
	    AnchorClass *lastan = NULL, *an;
	    int old = strchr(tok,'2')==NULL;
	    while ( (name=SFDReadUTF7Str(sfd))!=NULL ) {
		an = chunkalloc(old ? sizeof(AnchorClass1) : sizeof(AnchorClass));
		an->name = name;
		if ( old ) {
		    getname(sfd,tok);
		    if ( tok[0]=='0' && tok[1]=='\0' )
			((AnchorClass1 *) an)->feature_tag = 0;
		    else {
			if ( tok[1]=='\0' ) { tok[1]=' '; tok[2] = 0; }
			if ( tok[2]=='\0' ) { tok[2]=' '; tok[3] = 0; }
			if ( tok[3]=='\0' ) { tok[3]=' '; tok[4] = 0; }
			((AnchorClass1 *) an)->feature_tag = (tok[0]<<24) | (tok[1]<<16) | (tok[2]<<8) | tok[3];
		    }
		    while ( (ch=nlgetc(sfd))==' ' || ch=='\t' );
		    ungetc(ch,sfd);
		    if ( isdigit(ch)) {
			int temp;
			getint(sfd,&temp);
			((AnchorClass1 *) an)->flags = temp;
		    }
		    while ( (ch=nlgetc(sfd))==' ' || ch=='\t' );
		    ungetc(ch,sfd);
		    if ( isdigit(ch)) {
			int temp;
			getint(sfd,&temp);
			((AnchorClass1 *) an)->script_lang_index = temp;
		    } else
			((AnchorClass1 *) an)->script_lang_index = 0xffff;		/* Will be fixed up later */
		    while ( (ch=nlgetc(sfd))==' ' || ch=='\t' );
		    ungetc(ch,sfd);
		    if ( isdigit(ch)) {
			int temp;
			getint(sfd,&temp);
			((AnchorClass1 *) an)->merge_with = temp;
		    } else
			((AnchorClass1 *) an)->merge_with = 0xffff;			/* Will be fixed up later */
		} else {
                    char *subtable_name = SFDReadUTF7Str(sfd);
                    if ( subtable_name!=NULL)                                           /* subtable is optional */
		        an->subtable = SFFindLookupSubtableAndFreeName(sf,subtable_name);
                }
		while ( (ch=nlgetc(sfd))==' ' || ch=='\t' );
		ungetc(ch,sfd);
		if ( isdigit(ch) ) {
		    /* Early versions of SfdFormat 2 had a number here */
		    int temp;
		    getint(sfd,&temp);
		    an->type = temp;
		} else if ( old ) {
		    if ( ((AnchorClass1 *) an)->feature_tag==CHR('c','u','r','s'))
			an->type = act_curs;
		    else if ( ((AnchorClass1 *) an)->feature_tag==CHR('m','k','m','k'))
			an->type = act_mkmk;
		    else
			an->type = act_mark;
		} else {
		    an->type = act_mark;
		    if( an->subtable && an->subtable->lookup )
		    {
			switch ( an->subtable->lookup->lookup_type )
			{
			case gpos_cursive:
			    an->type = act_curs;
			    break;
			case gpos_mark2base:
			    an->type = act_mark;
			    break;
			case gpos_mark2ligature:
			    an->type = act_mklg;
			    break;
			case gpos_mark2mark:
			    an->type = act_mkmk;
			    break;
			default:
			    an->type = act_mark;
			    break;
			}
		    }
		}
		if ( lastan==NULL )
		    sf->anchor = an;
		else
		    lastan->next = an;
		lastan = an;
	    }
	} else if ( strncmp(tok,"MATH:",5)==0 ) {
	    SFDParseMathItem(sfd,sf,tok);
	} else if ( strmatch(tok,"TableOrder:")==0 ) {
	    int temp;
	    struct table_ordering *ord;
	    if ( sfdversion==0 || sfdversion>=2 ) {
		IError("Table ordering specified in version 2 sfd file.\n" );
                SplineFontFree(sf);
                return NULL;
	    }
	    ord = chunkalloc(sizeof(struct table_ordering));
	    ord->table_tag = gettag(sfd);
	    getint(sfd,&temp);
	    ord->ordered_features = malloc((temp+1)*sizeof(uint32));
	    ord->ordered_features[temp] = 0;
	    for ( i=0; i<temp; ++i ) {
		while ( isspace((ch=nlgetc(sfd))) );
		if ( ch=='\'' ) {
		    ungetc(ch,sfd);
		    ord->ordered_features[i] = gettag(sfd);
		} else if ( ch=='<' ) {
		    int f,s;
		    fscanf(sfd,"%d,%d>", &f, &s );
		    ord->ordered_features[i] = (f<<16)|s;
		}
	    }
	    if ( lastord==NULL )
		((SplineFont1 *) sf)->orders = ord;
	    else
		lastord->next = ord;
	    lastord = ord;
	} else if ( strmatch(tok,"BeginPrivate:")==0 ) {
	    SFDGetPrivate(sfd,sf);
	} else if ( strmatch(tok,"BeginSubrs:")==0 ) {	/* leave in so we don't croak on old sfd files */
	    SFDGetSubrs(sfd);
	} else if ( strmatch(tok,"PickledData:")==0 ) {
	    if (sf->python_persistent != NULL) {
#if defined(_NO_PYTHON)
	      free( sf->python_persistent );	/* It's a string of pickled data which we leave as a string */
#else
	      PyFF_FreePythonPersistent(sf->python_persistent);
#endif
	      sf->python_persistent = NULL;
	    }
	    sf->python_persistent = SFDUnPickle(sfd, 0);
	    sf->python_persistent_has_lists = 0;
	} else if ( strmatch(tok,"PickledDataWithLists:")==0 ) {
	    if (sf->python_persistent != NULL) {
#if defined(_NO_PYTHON)
	      free( sf->python_persistent );	/* It's a string of pickled data which we leave as a string */
#else
	      PyFF_FreePythonPersistent(sf->python_persistent);
#endif
	      sf->python_persistent = NULL;
	    }
	    sf->python_persistent = SFDUnPickle(sfd, 1);
	    sf->python_persistent_has_lists = 1;
	} else if ( strmatch(tok,"MMCounts:")==0 ) {
	    MMSet *mm = sf->mm = chunkalloc(sizeof(MMSet));
	    getint(sfd,&mm->instance_count);
	    getint(sfd,&mm->axis_count);
	    ch = nlgetc(sfd);
	    if ( ch!=' ' )
		ungetc(ch,sfd);
	    else { int temp;
		getint(sfd,&temp);
		mm->apple = temp;
		getint(sfd,&mm->named_instance_count);
	    }
	    mm->instances = calloc(mm->instance_count,sizeof(SplineFont *));
	    mm->positions = malloc(mm->instance_count*mm->axis_count*sizeof(real));
	    mm->defweights = malloc(mm->instance_count*sizeof(real));
	    mm->axismaps = calloc(mm->axis_count,sizeof(struct axismap));
	    if ( mm->named_instance_count!=0 )
		mm->named_instances = calloc(mm->named_instance_count,sizeof(struct named_instance));
	} else if ( strmatch(tok,"MMAxis:")==0 ) {
	    MMSet *mm = sf->mm;
	    if ( mm!=NULL ) {
		for ( i=0; i<mm->axis_count; ++i ) {
		    getname(sfd,tok);
		    mm->axes[i] = copy(tok);
		}
	    }
	} else if ( strmatch(tok,"MMPositions:")==0 ) {
	    MMSet *mm = sf->mm;
	    if ( mm!=NULL ) {
		for ( i=0; i<mm->axis_count*mm->instance_count; ++i )
		    getreal(sfd,&mm->positions[i]);
	    }
	} else if ( strmatch(tok,"MMWeights:")==0 ) {
	    MMSet *mm = sf->mm;
	    if ( mm!=NULL ) {
		for ( i=0; i<mm->instance_count; ++i )
		    getreal(sfd,&mm->defweights[i]);
	    }
	} else if ( strmatch(tok,"MMAxisMap:")==0 ) {
	    MMSet *mm = sf->mm;
	    if ( mm!=NULL ) {
		int index, points;
		getint(sfd,&index); getint(sfd,&points);
		mm->axismaps[index].points = points;
		mm->axismaps[index].blends = malloc(points*sizeof(real));
		mm->axismaps[index].designs = malloc(points*sizeof(real));
		for ( i=0; i<points; ++i ) {
		    getreal(sfd,&mm->axismaps[index].blends[i]);
		    while ( (ch=nlgetc(sfd))!=EOF && isspace(ch));
		    ungetc(ch,sfd);
		    if ( (ch=nlgetc(sfd))!='=' )
			ungetc(ch,sfd);
		    else if ( (ch=nlgetc(sfd))!='>' )
			ungetc(ch,sfd);
		    getreal(sfd,&mm->axismaps[index].designs[i]);
		}
		lastaxismap = &mm->axismaps[index];
		lastnamedinstance = NULL;
	    }
	} else if ( strmatch(tok,"MMNamedInstance:")==0 ) {
	    MMSet *mm = sf->mm;
	    if ( mm!=NULL ) {
		int index;
		getint(sfd,&index);
		mm->named_instances[index].coords = malloc(mm->axis_count*sizeof(real));
		for ( i=0; i<mm->axis_count; ++i )
		    getreal(sfd,&mm->named_instances[index].coords[i]);
		lastnamedinstance = &mm->named_instances[index];
		lastaxismap = NULL;
	    }
	} else if ( strmatch(tok,"MacName:")==0 ) {
	    struct macname *names = SFDParseMacNames(sfd,tok);
	    if ( lastaxismap!=NULL )
		lastaxismap->axisnames = names;
	    else if ( lastnamedinstance !=NULL )
		lastnamedinstance->names = names;
	    pushedbacktok = true;
	} else if ( strmatch(tok,"MMCDV:")==0 ) {
	    MMSet *mm = sf->mm;
	    if ( mm!=NULL )
		mm->cdv = SFDParseMMSubroutine(sfd);
	} else if ( strmatch(tok,"MMNDV:")==0 ) {
	    MMSet *mm = sf->mm;
	    if ( mm!=NULL )
		mm->ndv = SFDParseMMSubroutine(sfd);
	} else if ( strmatch(tok,"BeginMMFonts:")==0 ) {
	    int cnt;
	    getint(sfd,&cnt);
	    getint(sfd,&realcnt);
	    ff_progress_change_stages(cnt);
	    ff_progress_change_total(realcnt);
	    MMInferStuff(sf->mm);
    break;
	} else if ( strmatch(tok,"BeginSubFonts:")==0 ) {
	    getint(sfd,&sf->subfontcnt);
	    sf->subfonts = calloc(sf->subfontcnt,sizeof(SplineFont *));
	    getint(sfd,&realcnt);
	    sf->map = EncMap1to1(realcnt);
	    ff_progress_change_stages(2);
	    ff_progress_change_total(realcnt);
    break;
	} else if ( strmatch(tok,"BeginChars:")==0 ) {
	    int charcnt;
	    getint(sfd,&charcnt);
	    if (charcnt<enc->char_cnt) {
		IError("SFD file specifies too few slots for its encoding.\n" );
exit( 1 );
	    }
	    if ( getint(sfd,&realcnt)!=1 || realcnt==-1 )
		realcnt = charcnt;
	    else
		++realcnt;		/* value saved is max glyph, not glyph cnt */
	    ff_progress_change_total(realcnt);
	    sf->glyphcnt = sf->glyphmax = realcnt;
	    sf->glyphs = calloc(realcnt,sizeof(SplineChar *));
	    if ( cidmaster!=NULL ) {
		sf->map = cidmaster->map;
	    } else {
		sf->map = EncMapNew(charcnt,realcnt,enc);
		sf->map->remap = remap;
	    }
	    SFDSizeMap(sf->map,sf->glyphcnt,charcnt);
    break;
#if HANYANG
	} else if ( strmatch(tok,"BeginCompositionRules")==0 ) {
	    sf->rules = SFDReadCompositionRules(sfd);
#endif
	} else {
	    /* If we don't understand it, skip it */
	    geteol(sfd,tok);
	}
    }

    // Many downstream functions assume this isn't NULL (use strlen, etc.)
    if ( sf->fontname==NULL)
	sf->fontname = copy("");

    if ( fromdir )
	sf = SFD_FigureDirType(sf,tok,dirname,enc,remap,had_layer_cnt);
    else if ( sf->subfontcnt!=0 ) {
	ff_progress_change_stages(2*sf->subfontcnt);
	for ( i=0; i<sf->subfontcnt; ++i ) {
	    if ( i!=0 )
		ff_progress_next_stage();
	    sf->subfonts[i] = SFD_GetFont(sfd,sf,tok,fromdir,dirname,sfdversion);
	}
    } else if ( sf->mm!=NULL ) {
	MMSet *mm = sf->mm;
	ff_progress_change_stages(2*(mm->instance_count+1));
	for ( i=0; i<mm->instance_count; ++i ) {
	    if ( i!=0 )
		ff_progress_next_stage();
	    mm->instances[i] = SFD_GetFont(sfd,NULL,tok,fromdir,dirname,sfdversion);
	    EncMapFree(mm->instances[i]->map); mm->instances[i]->map=NULL;
	    mm->instances[i]->mm = mm;
	}
	ff_progress_next_stage();
	mm->normal = SFD_GetFont(sfd,NULL,tok,fromdir,dirname,sfdversion);
	mm->normal->mm = mm;
	sf->mm = NULL;
	SplineFontFree(sf);
	sf = mm->normal;
	if ( sf->map->enc!=&custom ) {
	    EncMap *map;
	    MMMatchGlyphs(mm);		/* sfd files from before the encoding change can have mismatched orig pos */
	    map = EncMapFromEncoding(sf,sf->map->enc);
	    EncMapFree(sf->map);
	    sf->map = map;
	}
    } else {
	while ( SFDGetChar(sfd,sf,had_layer_cnt)!=NULL ) {
	    ff_progress_next();
	}
	ff_progress_next_stage();
    }
    haddupenc = false;
    while ( getname(sfd,tok)==1 ) {
	if ( strcmp(tok,"EndSplineFont")==0 || strcmp(tok,"EndSubSplineFont")==0 )
    break;
	else if ( strcmp(tok,"BitmapFont:")==0 )
	    SFDGetBitmapFont(sfd,sf,false,NULL);
	else if ( strmatch(tok,"DupEnc:")==0 ) {
	    int enc, orig;
	    haddupenc = true;
	    if ( getint(sfd,&enc) && getint(sfd,&orig) && sf->map!=NULL ) {
		SFDSetEncMap(sf,orig,enc);
	    }
	}
    }
    if ( sf->cidmaster==NULL )
	SFDFixupRefs(sf);

    if ( !haddupenc )
	SFD_DoAltUnis(sf);
    else
	AltUniFigure(sf,sf->map,true);
    if ( sf->sfd_version<2 )
	SFD_AssignLookups((SplineFont1 *) sf);
    if ( !d.hadtimes )
	SFTimesFromFile(sf,sfd);
    // Make a blank encoding if there are no characters so as to avoid crashes later.
    if (sf->map == NULL) sf->map = EncMapNew(sf->glyphcnt,sf->glyphcnt,&custom);

    SFDFixupUndoRefs(sf);
return( sf );
}


static void SFDFixupRef(SplineChar *sc,RefChar *ref,int layer) {
    RefChar *rf;
    int ly;

    if ( sc->parent->multilayer ) {
	for ( ly=ly_fore; ly<ref->sc->layer_cnt; ++ly ) {
	    for ( rf = ref->sc->layers[ly].refs; rf!=NULL; rf=rf->next ) {
		if ( rf->sc==sc ) {	/* Huh? */
		    ref->sc->layers[ly].refs = NULL;
	    break;
		}
		if ( rf->layers[0].splines==NULL )
		    SFDFixupRef(ref->sc,rf,layer);
	    }
	}
    } else {
	for ( rf = ref->sc->layers[layer].refs; rf!=NULL; rf=rf->next ) {
	    if ( rf->sc==sc ) {	/* Huh? */
		ref->sc->layers[layer].refs = NULL;
	break;
	    }
	    if ( rf->layers[0].splines==NULL )
		SFDFixupRef(ref->sc,rf,layer);
	}
    }
    SCReinstanciateRefChar(sc,ref,layer);
    SCMakeDependent(sc,ref->sc);
}


static void SFDDumpPrivate(FILE *sfd,struct psdict *private) {
    int i;
    char *pt;
    /* These guys should all be ascii text */
    fprintf( sfd, "BeginPrivate: %d\n", private->next );
    for ( i=0; i<private->next ; ++i ) {
      fprintf( sfd, "%s %d ", private->keys[i],
	       (int)strlen(private->values[i]));
	for ( pt = private->values[i]; *pt; ++pt )
	    putc(*pt,sfd);
	putc('\n',sfd);
    }
    fprintf( sfd, "EndPrivate\n" );
}


static void SFDDumpRefs(FILE *sfd,RefChar *refs, int *newgids) {
    RefChar *ref;

    for ( ref=refs; ref!=NULL; ref=ref->next ) if ( ref->sc!=NULL ) {
	fprintf(sfd, "Refer: %d %d %c %g %g %g %g %g %g %d",
		    newgids!=NULL ? newgids[ref->sc->orig_pos]:ref->sc->orig_pos,
		    ref->sc->unicodeenc,
		    ref->selected?'S':'N',
		    (double) ref->transform[0], (double) ref->transform[1], (double) ref->transform[2],
		    (double) ref->transform[3], (double) ref->transform[4], (double) ref->transform[5],
		    ref->use_my_metrics|(ref->round_translation_to_grid<<1)|
		     (ref->point_match<<2));
	if ( ref->point_match ) {
	    fprintf(sfd, " %d %d", ref->match_pt_base, ref->match_pt_ref );
	    if ( ref->point_match_out_of_date )
		fprintf( sfd, " O" );
	}
	putc('\n',sfd);
    }
}


static void ASMReplaceTagsWithLookups(ASM *sm,SplineFont1 *sf) {
    int i;

    if ( sm->type != asm_context )
return;
    for ( i=0; i<sm->class_cnt*sm->state_cnt; ++i ) {
	if ( sm->state[i].u.context.mark_lookup!=NULL )
	    sm->state[i].u.context.mark_lookup = FindNestedLookupByTag(sf,(uint32) (intpt) (sm->state[i].u.context.mark_lookup) );
	if ( sm->state[i].u.context.cur_lookup!=NULL )
	    sm->state[i].u.context.cur_lookup = FindNestedLookupByTag(sf,(uint32) (intpt) (sm->state[i].u.context.cur_lookup) );
    }
}


void visitSFDFragment( FILE *sfd, SplineFont *sf,
		       visitSFDFragmentFunc ufunc, void* udata )
{
    int eof;
    char tok[2000];
    while ( 1 ) {
	if ( (eof = getname(sfd,tok))!=1 ) {
	    if ( eof==-1 )
		break;
	    geteol(sfd,tok);
	    continue;
	}

	ufunc( sfd, tok, sf, udata );
    }
}


int SFDDoesAnyBackupExist(char* filename)
{
    char path[PATH_MAX];
    int idx = 1;

    snprintf( path, PATH_MAX, "%s-%02d", filename, idx );
    return GFileExists(path);
}


void SFD_GetFontMetaDataData_Init( SFD_GetFontMetaDataData* d )
{
    memset( d, 0, sizeof(SFD_GetFontMetaDataData));
}


static void rle2image(struct enc85 *dec,int rlelen,struct _GImage *base) {
    uint8 *pt, *end;
    int r,c,set, cnt, ch, ch2;
    int i;

    r = c = 0; set = 1; pt = base->data; end = pt + base->bytes_per_line*base->height;
    memset(base->data,0xff,end-pt);
    while ( rlelen>0 ) {
	if ( pt>=end ) {
	    IError( "RLE failure\n" );
	    while ( rlelen>0 ) { Dec85(dec); --rlelen; }
    break;
	}
	ch = Dec85(dec);
	--rlelen;
	if ( ch==255 ) {
	    ch2 = Dec85(dec);
	    cnt = (ch2<<8) + Dec85(dec);
	    rlelen -= 2;
	} else
	    cnt = ch;
	if ( ch==255 && ch2==0 && cnt<255 ) {
	    /* Line duplication */
	    for ( i=0; i<cnt && pt<end; ++i ) {
		memcpy(pt,base->data+(r-1)*base->bytes_per_line,base->bytes_per_line);
		++r;
		pt += base->bytes_per_line;
	    }
	    set = 1;
	} else {
	    if ( pt + ((c+cnt)>>3) > end ) {
		IError( "Run length encoded image has been corrupted.\n" );
    break;
	    }
	    if ( !set ) {
		for ( i=0; i<cnt; ++i )
		    pt[(c+i)>>3] &= ((~0x80)>>((c+i)&7));
	    }
	    c += cnt;
	    set = 1-set;
	    if ( c>=base->width ) {
		++r;
		pt += base->bytes_per_line;
		c = 0; set = 1;
	    }
	}
    }
}


void SFD_GetFontMetaDataVoid( FILE *sfd,
			  char *tok,
			  SplineFont *sf,
			  void* d ) {
  SFD_GetFontMetaData(sfd, tok, sf, d);
}


static uint8 *image2rle(struct _GImage *img, int *len) {
    int max = img->height*img->bytes_per_line;
    uint8 *rle, *pt, *end;
    int cnt, set;
    int i,j,k;

    *len = 0;
    if ( img->image_type!=it_mono || img->bytes_per_line<5 )
return( NULL );
    rle = calloc(max,sizeof(uint8)), pt = rle, end=rle+max-3;

    for ( i=0; i<img->height; ++i ) {
	if ( i!=0 ) {
	    if ( memcmp(img->data+i*img->bytes_per_line,
			img->data+(i-1)*img->bytes_per_line, img->bytes_per_line)== 0 ) {
		for ( k=1; k<img->height-i; ++k ) {
		    if ( memcmp(img->data+(i+k)*img->bytes_per_line,
				img->data+i*img->bytes_per_line, img->bytes_per_line)!= 0 )
		break;
		}
		i+=k;
		while ( k>0 ) {
		    if ( pt>end ) {
			free(rle);
return( NULL );
		    }
		    *pt++ = 255;
		    *pt++ = 0;
		    *pt++ = k>254 ? 254 : k;
		    k -= 254;
		}
		if ( i>=img->height )
    break;
	    }
	}

	set=1; cnt=0; j=0;
	while ( j<img->width ) {
	    for ( k=j; k<img->width; ++k ) {
		if (( set && !(img->data[i*img->bytes_per_line+(k>>3)]&(0x80>>(k&7))) ) ||
		    ( !set && (img->data[i*img->bytes_per_line+(k>>3)]&(0x80>>(k&7))) ))
	    break;
	    }
	    cnt = k-j;
	    j=k;
	    do {
		if ( pt>=end ) {
		    free(rle);
return( NULL );
		}
		if ( cnt<=254 )
		    *pt++ = cnt;
		else {
		    *pt++ = 255;
		    if ( cnt>65535 ) {
			*pt++ = 255;
			*pt++ = 255;
			*pt++ = 0;		/* nothing of the other color, we've still got more of this one */
		    } else {
			*pt++ = cnt>>8;
			*pt++ = cnt&0xff;
		    }
		}
		cnt -= 65535;
	    } while ( cnt>0 );
	    set = 1-set;
	}
    }
    *len = pt-rle;
return( rle );
}


static struct baselangextent *ParseBaseLang(FILE *sfd) {
    struct baselangextent *bl;
    struct baselangextent *cur, *last;
    int ch;

    while ( (ch=nlgetc(sfd))==' ' );
    if ( ch=='{' ) {
	bl = chunkalloc(sizeof(struct baselangextent));
	while ( (ch=nlgetc(sfd))==' ' );
	ungetc(ch,sfd);
	if ( ch=='\'' )
	    bl->lang = gettag(sfd);		/* Lang or Feature tag, or nothing */
	getsint(sfd,&bl->descent);
	getsint(sfd,&bl->ascent);
	last = NULL;
	while ( (ch=nlgetc(sfd))==' ' );
	while ( ch=='{' ) {
	    ungetc(ch,sfd);
	    cur = ParseBaseLang(sfd);
	    if ( last==NULL )
		bl->features = cur;
	    else
		last->next = cur;
	    last = cur;
	    while ( (ch=nlgetc(sfd))==' ' );
	}
	if ( ch!='}' ) ungetc(ch,sfd);
return( bl );
    }
return( NULL );
}


static int order_lookups(const void *_otl1, const void *_otl2) {
    const OTLookup *otl1 = *(const OTLookup **) _otl1, *otl2 = *(const OTLookup **) _otl2;
return( otl1->lookup_index - otl2->lookup_index );
}