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- /* Standard Generalized Markup Language Users' Group (SGMLUG)
- SGML Parser Materials (ARCSGML 1.0)
-
- (C) 1983-1988 Charles F. Goldfarb (assigned to IBM Corporation)
- (C) 1988-1991 IBM Corporation
-
- Licensed to the SGML Users' Group for distribution under the terms of
- the following license: */
-
- char license[] =
- "SGMLUG hereby grants to any user: (1) an irrevocable royalty-free,\n\
- worldwide, non-exclusive license to use, execute, reproduce, display,\n\
- perform and distribute copies of, and to prepare derivative works\n\
- based upon these materials; and (2) the right to authorize others to\n\
- do any of the foregoing.\n";
-
- #include "sgmlincl.h"
-
- /* SGMLXTRN: Storage allocation and initialization for all public variables.
- Exceptions: Constants lex????? and del????? are defined in
- LEX?????.C modules; constants pcb????? are defined in PCB?????.c.
- */
- int badresw = 0; /* 1=REF_ out of context; 0=valid. */
- int charmode = 0; /* >0=in #CHARS; 0=not. */
- int conactsw = 0; /* 1=return saved content action 0=get new one.*/
- int conrefsw = 0; /* 1=content reference att specified; 0=no. */
- int contersv = 0; /* Save contersw while processing pending REF. */
- int contersw = 0; /* 1=element or #CHARS out of context; 0=valid. */
- int datarc = 0; /* Return code for data: DAF_ or REF_. */
- int delmscsw = 0; /* 1=DELMSC must be read on return to es==0. */
- int didreq = 0; /* 1=required implied tag processed; 0=no. */
- int dostag = 0; /* 1=retry newetd instead of parsing; 0=parse. */
- int dtdsw = 0; /* DOCTYPE declaration found: 1=yes; 0=no. */
- int entdatsw = 0; /* 2=CDATA entity; 4=SDATA; 8=NDATA; 0=none. */
- int entpisw = 0; /* 4=PI entity occurred; 0=not. */
- int eodsw = 0; /* 1=eod found in error; 0=not yet. */
- int eofsw = 0; /* 1=eof found in body of document; 0=not yet. */
- int es = -1; /* Index of current source in stack. */
- int etagimct = 0; /* Implicitly ended elements left on stack. */
- int etagimsw = 0; /* 1=end-tag implied by other end-tag; 0=not. */
- int etagmin = MINNONE; /* Minim: NONE NULL NET DATA; implied by S/ETAG*/
- int etictr = 0; /* Number of "NET enabled" tags on stack. */
- int etisw = 0; /* 1=tag ended with eti; 0=did not. */
- int indtdsw = 0; /* Are we in the DTD? 1=yes; 0=no. */
- int mslevel = 0; /* Nesting level of marked sections. */
- int msplevel = 0; /* Nested MS levels subject to special parse. */
- int prologsw = 1; /* 1=in prolog; 0=not. */
- int pss = 0; /* SGMLACT: scbsgml stack level. */
- int sgmlsw = 0; /* SGML declaration found: 1=yes; 0=no. */
- int stagmin = MINNONE; /* Minimization: NONE, NULL tag, implied by STAG*/
- int tagctr = 0; /* Tag source chars read. */
- int ts = -1; /* Index of current tag in stack. */
- struct parse *propcb = &pcbpro; /* Current PCB for prolog parse. */
- int aentctr = 0; /* Number of ENTITY tokens in this att list. */
- int conact = 0; /* Return code from content parse. */
- int conrefsv = 0; /* Save conrefsw when doing implied start-tag.*/
- int dtdrefsw = 0; /* External DTD? 1=yes; 0=no. */
- int etiswsv = 0; /* Save etisw when processing implied start-tag.*/
- int grplvl = 0; /* Current level of nested grps in model. */
- int idrctr = 0; /* Number of IDREF tokens in this att list. */
- int mdessv = 0; /* ES level at start of markup declaration. */
- int notadn = 0; /* Position of NOTATION attribute in list. */
- int parmno = 0; /* Current markup declaration parameter number. */
- int pexsw = 0; /* 1=tag valid solely because of plus exception.*/
- int rcessv = 0; /* ES level at start of RCDATA content. */
- int tagdelsw = 0; /* 1=tag ended with delimiter; 0=no delimiter. */
- int tokencnt = 0; /* Number of tokens found in attribute value. */
- struct entity *ecbdeflt = 0; /* #DEFAULT ecb (NULL if no default entity). */
- struct etd *docetd = 0; /* The etd for the document as a whole. */
- struct etd *etagreal = 0; /* Actual or dummy etd that implied this tag. */
- struct etd *newetd = 0; /* The etd for a start- or end-tag recognized. */
- struct etd *nextetd = 0; /* ETD that must come next (only one choice). */
- struct etd *stagreal = 0; /* Actual or dummy etd that implied this tag. */
- struct parse *conpcb = 0; /* Current PCB for content parse. */
- UNCH *data = 0; /* Pointer to returned data in buffer. */
- UNCH *mdname = 0; /* Name of current markup declaration. */
- UNCH *ptcon = 0; /* Current pointer into tbuf. */
- UNCH *ptpro = 0; /* Current pointer into tbuf. */
- UNCH *rbufs = 0; /* DOS file read area: start position for read. */
- UNCH *subdcl = 0; /* Subject of markup declaration (e.g., GI). */
- UNCH Tstart = 0; /* Save starting token for AND group testing. */
- UNS conradn = 0; /* 1=CONREF attribute in list (0=no). */
- UNS datalen = 0; /* Length of returned data in buffer. */
- UNS entlen = 0; /* Length of TAG or EXTERNAL entity text. */
- UNS idadn = 0; /* Number of ID attribute (0 if none). */
- UNS noteadn = 0; /* Number of NOTATION attribute (0 if none). */
- UNS reqadn = 0; /* Num of atts with REQUIRED default (0=none). */
- int grplongs; /* Number of longs for GRPCNT bitvector. */
-
- /* Variable arrays and structures.
- */
- struct ad *al = 0; /* Current attribute list work area. */
- struct dcncb *dcntab[1]; /* List of data content notation names. */
- struct entity *etab[ENTHASH]; /* Entity hash table. */
- struct etd *etdtab[ETDHASH]; /* Element type definition hash table. */
- struct fpi fpidf; /* Fpi for #DEFAULT entity. */
- struct id *itab[IDHASH]; /* Unique identifier hash table. */
- struct etd **nmgrp = 0; /* Element name group */
- PDCB *nnmgrp = 0; /* Notation name group */
- struct restate *scbsgml = 0; /* SGMLACT: return action state stack. */
- struct source *scbs = 0; /* Stack of open sources ("SCB stack"). */
- struct srh *srhtab[1]; /* List of SHORTREF table headers. */
- struct sgmlstat ds; /* Document statistics. */
- struct switches sw; /* Parser control switches set by text proc. */
- struct tag *tags = 0; /* Stack of open elements ("tag stack"). */
- struct thdr *gbuf = 0; /* Buffer for creating group. */
- struct thdr prcon[3]; /* 0-2: Model for *DOC content. */
- struct thdr undechdr; /* 0:Default model hdr for undeclared content.*/
- UNCH *dtype = 0; /* Document type name. */
- UNCH *entbuf = 0; /* Buffer for entity reference name. */
- UNCH fce[2]; /* String form of FCE char.
- (fce[1] must be EOS).*/
- UNCH nonchbuf[2]; /* Buffer for non-SGML character reference.*/
- UNCH *tbuf; /* Work area for tokenization. */
- UNCH *lbuf = 0; /* In tbuf: Literal parse area.*/
- UNCH *sysibuf = 0; /* Buffer for system identifiers. */
- UNCH *pubibuf = 0; /* Buffer for public identifiers. */
- UNCH *nmbuf = 0; /* Name buffer used by mdentity. */
- struct mpos *savedpos;
-
- /* Constants.
- */
- struct map dctab[] = { /* Keywords for declared content parameter.*/
- key[KRCDATA], MRCDATA+MPHRASE,
- key[KCDATA], MCDATA+MPHRASE,
- key[KANY], MANY+MCHARS+MGI,
- key[KEMPTY], MNONE+MPHRASE,
- NULL, 0
- };
- struct map deftab[] = { /* Default value keywords. */
- key[KIMPLIED], DNULL ,
- key[KREQUIRED], DREQ ,
- key[KCURRENT], DCURR ,
- key[KCONREF], DCONR ,
- key[KFIXED], DFIXED,
- NULL, 0
- };
- struct map dvtab[] = { /* Declared value: keywords and type codes.*/
- /* TYPE NUMBER */
- /* grp ANMTGRP Case 1 0 Grp size */
- /* grp member ANMTGRP Case 0 Position */
- /* grp ANOTEGRP Case 1 1 Grp size */
- key[KNOTATION], ANOTEGRP, /* Case 1 Position */
- key[KCDATA], ACHARS , /* Case 2 Always 0 */
- key[KENTITY], AENTITY , /* Case 3 Normal 1 */
- key[KID], AID , /* Case 4 Normal 1 */
- key[KIDREF], AIDREF , /* Case 5 Normal 1 */
- key[KNAME], ANAME , /* Case 6 Normal 1 */
- key[KNMTOKEN], ANMTOKE , /* Case 7 Normal 1 */
- key[KNUMBER], ANUMBER , /* Case 8 Normal 1 */
- key[KNUTOKEN], ANUTOKE , /* Case 9 Normal 1 */
- key[KENTITIES], AENTITYS, /* Case A Normal 1 */
- key[KIDREFS], AIDREFS , /* Case B # tokens */
- key[KNAMES], ANAMES , /* Case C # tokens */
- key[KNMTOKENS], ANMTOKES, /* Case D # tokens */
- key[KNUMBERS], ANUMBERS, /* Case E # tokens */
- key[KNUTOKENS], ANUTOKES, /* Case F # tokens */
- NULL, 0 /* Case 0 ERROR */
- };
- struct map enttab[] = { /* Entity declaration second parameter. */
- key[KCDATA], ESC ,
- key[KSDATA], ESX ,
- key[KMS], ESMS,
- key[KPI], ESI ,
- key[KSTARTTAG], ESS ,
- key[KENDTAG], ESE ,
- key[KMD], ESMD,
- NULL, 0
- };
- struct map exttab[] = { /* Keywords for external identifier. */
- key[KSYSTEM], EDSYSTEM,
- key[KPUBLIC], EDPUBLIC,
- NULL, 0
- };
- struct map extettab[] = { /* Keywords for external entity type. */
- key[KCDATA], ESNCDATA,
- key[KNDATA], ESNNDATA,
- key[KSDATA], ESNSDATA,
- key[KSUBDOC], ESNSUB,
- NULL, 0
- };
- struct map funtab[] = { /* Function character reference names. */
- key[KRE], RECHAR,
- key[KRS], RSCHAR,
- key[KSPACE], SPCCHAR,
- (UNCH *)"TAB", TABCHAR, /* We should use an extra table for added functions. */
- NULL, 0
- };
- struct map mstab[] = { /* Marked section keywords. */
- key[KTEMP], MSTEMP ,
- key[KINCLUDE], MSTEMP , /* Treat INCLUDE like TEMP; both are NOPs.*/
- key[KRCDATA], MSRCDATA,
- key[KCDATA], MSCDATA ,
- key[KIGNORE], MSIGNORE,
- NULL, 0
- };
- struct map pubcltab[] = { /* Names for public text class. */
- (UNCH *)"CAPACITY", FPICAP ,
- (UNCH *)"CHARSET", FPICHARS,
- (UNCH *)"DOCUMENT", FPIDOC ,
- (UNCH *)"DTD", FPIDTD ,
- (UNCH *)"ELEMENTS", FPIELEM ,
- (UNCH *)"ENTITIES", FPIENT ,
- (UNCH *)"LPD", FPILPD ,
- (UNCH *)"NONSGML", FPINON ,
- (UNCH *)"NOTATION", FPINOT ,
- (UNCH *)"SHORTREF", FPISHORT,
- (UNCH *)"SUBDOC", FPISUB ,
- (UNCH *)"SYNTAX", FPISYN ,
- (UNCH *)"TEXT", FPITEXT ,
- NULL, 0
- };
- UNCH indefent[] = "\12#DEFAULT"; /* Internal name: default entity name. */
- UNCH indefetd[] = "\12*DOCTYPE"; /* Internal name: default document type. */
- UNCH indocent[] = "\12*SGMLDOC"; /* Internal name: SGML document entity. */
- UNCH indocetd[] = "\6*DOC"; /* Internal name: document level etd. */
- UNCH indtdent[] = "\11*DTDENT"; /* Internal name: external DTD entity. */
-
- struct etd dumetd[3];
- struct entity *dumpecb;
- UNCH sgmlkey[] = "SGML";
-