Initial import of the CDE 2.1.30 sources from the Open Group.
This commit is contained in:
Peter Howkins
115
cde/programs/dtdocbook/sgmls/source.h
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115
cde/programs/dtdocbook/sgmls/source.h
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/* $XConsortium: source.h /main/3 1996/06/19 17:18:30 drk $ */
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/* SOURCE.H: Entity and source control block structures and definitions.
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*/
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#define ENTHASH 503 /* Size of entity hash table. Must be prime. */
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/* Entity storage class values for estore member of entity structure. */
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#define EST 1 /* String: Tag (usually a fixed STARTGI). */
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/* <MDENTITY sets these:> */
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#define ESMD 2 /* String: Markup declaration. */
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#define ESMS 3 /* String: Marked section. */
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#define ESM 4 /* String: ordinary text. */
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/* <ENTOPEN treats these specially:> */
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#define ESS 5 /* ETD: Start-tag. */
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#define ESE 6 /* ETD: End-tag. */
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#define ESI 7 /* String: PI. */
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#define ESX 8 /* String: SDATA general entity. */
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#define ESC 9 /* String: CDATA general entity. */
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/* </MDENTITY> <MDEXTID sets these:> */
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#define ESFM 10 /* LPU: minimum external (file) storage class. */
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#define ESN 10 /* XCB: N/C/SDATA or SUBDOC control block. */
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/* </ENTOPEN> */
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#define ESF 11 /* LPU: General entity. */
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#define ESP 12 /* LPU: Parameter entity. */
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#define ESD 13 /* LPU: Document type definition. */
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#define ESL 14 /* LPU: Link process definition. */
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#define ESK 15 /* LPU: Data content notation. */
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/* </MDEXTID> */
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union etext { /* Entity text. */
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UNIV x; /* External ID generated by system. */
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UNCH *c; /* Character string. */
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struct ne *n; /* N/C/SDATA or SUBDOC entity control block. */
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};
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#define ETEXTSZ sizeof(union etext)
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struct entity { /* Entity control block. */
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struct entity *enext; /* Next entity in chain. */
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UNCH *ename; /* Entity name with length and EOS. */
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UNCH estore; /* Storage class (see values above). */
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UNCH dflt; /* Declared as default entity. */
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UNCH mark; /* For use by for sgmlment. */
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union etext etx; /* Entity text. */
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};
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#define ENTSZ sizeof(struct entity)
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typedef struct entity *PECB; /* Ptr to entity control block. */
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typedef struct entity **TECB; /* Table of entity control blocks. */
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struct source { /* Source control block. */
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struct entity ecb; /* Entity control block. */
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unsigned long rcnt; /* Source record number. */
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int ccnt; /* Source record chars since last RS. */
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int curoff; /* Offset of curchar (chars read in this block).*/
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UNCH curchar; /* Current character. */
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UNCH nextchar; /* If curchar was DELNONCH, next character. */
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UNIV fcb; /* SGMLIO fcb ptr returned by OPEN. */
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UNCH *fbuf; /* 1st char in buffer (0=PEND) or entity text. */
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UNCH *fpos; /* Current char in buffer or entity text. */
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UNCH pushback; /* Character before pend position */
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char copied; /* Is this a copy of the internal entity? */
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};
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#define SCBSZ sizeof(struct source)
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typedef struct source *PSCB; /* Ptr to source control block. */
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extern int es; /* Index of current source in stack. */
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extern struct source *scbs; /* Stack of open sources ("SCB stack"). */
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/* Member definitions for source and entity control blocks.
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*/
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#define SCB (scbs[es]) /* Ptr to current source control block. */
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#define ECB SCB.ecb /* Pointer to current entity control block. */
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#define FBUF SCB.fbuf /* Pointer to start of entity buffer. */
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#define FPOS SCB.fpos /* Pointer to current char of current source. */
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#define RSCC SCB.ccnt /* CCNT at start of block (across EOB/EOS/EOF). */
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#define CCO SCB.curoff /* Offset in read buffer of current char. */
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#define CC SCB.curchar /* Current character of current source entity. */
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#define NEXTC SCB.nextchar /* Next character in current source entity. */
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#define CCNT (SCB.ccnt+CCO) /* Position of CC in current record (RS=0). */
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#define RCNT SCB.rcnt /* Position of record in entity (origin=1). */
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#define SCBFCB SCB.fcb /* Current file control block (if FILESW). */
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#define ECBPTR ((ECB.enext)) /* Pointer to this entity's ECB. */
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#define ENTITY ((ECB.ename)) /* Current entity name. */
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#define FILESW (ECB.estore>=ESFM) /* 1=Entity is external file; 0=internal. */
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#define NEWCC (++FPOS) /* Get next current character. */
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#define REPEATCC (--FPOS) /* Repeat previous current character. */
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#define COPIEDSW SCB.copied /* Non-zero means entity was copied. */
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struct srh { /* Short reference map header. */
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struct srh *enext; /* Next short reference map in chain. */
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UNCH *ename; /* Short reference map name. */
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TECB srhsrm; /* Ptr to short reference map. */
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};
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#define SRHSZ (sizeof(struct srh))
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typedef struct srh *PSRH; /* Ptr to short reference map header. */
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#define SRMNULL (&dumpecb) /* Dummy ptr to empty short reference map. */
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/* Definitions for ENTOPEN/ENTREF return codes.
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*/
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#define ENTUNDEF -1 /* Callers of ENTOPEN: entity undefined. */
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#define ENTLOOP -2 /* ENTOPEN: endless loop entity. */
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#define ENTMAX -3 /* ENTOPEN: too many open entities. */
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#define ENTFILE -4 /* ENTOPEN: file I/O error. */
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#define ENTDATA -5 /* ENTOPEN: CDATA or SDATA entity. */
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#define ENTPI -6 /* ENTOPEN: PI entity. */
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/* Definitions for ENTDATA switches set in contersw.
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*/
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#define CDECONT 2 /* 0010 CDATA entity referenced. */
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#define SDECONT 4 /* 0100 SDATA entity referenced. */
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#define NDECONT 8 /* 1000 NDATA entity referenced. */
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/* Definitions for manipulating signed source character counters.
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*/
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#define CTRSET(CTR) (CTR = (int) -(FPOS+1-FBUF)) /* Init source char ctr. */
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#define CTRGET(CTR) (CTR + (int) (FPOS+1-FBUF)) /* Read source char ctr. */
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