147 lines
4.9 KiB
C
147 lines
4.9 KiB
C
/*****************************************************************************
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emrultk.h
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Owner: DaleG
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Copyright (c) 1992-1997 Microsoft Corporation
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Rule and Lexer-token history recording header file.
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*****************************************************************************/
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#ifndef EMRULTK_H
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#define EMRULTK_H
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MSOEXTERN_C_BEGIN // ***************** Begin extern "C" ********************
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#ifndef MSOCP_DEFINED
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typedef long MSOCP; // Character position
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#define msocpNil ((MSOCP) -1)
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#define msocp0 ((MSOCP) 0)
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#define msocpMax ((MSOCP) 0x7FFFFFFF)
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#define MSOCP_DEFINED
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#endif /* !MSOCP_DEFINED */
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/*************************************************************************
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Types:
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rultk Rule/lexer-token history record.
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rultkh Rule/lexer-token history cache.
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*************************************************************************/
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/* M S O R U L T K */
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/*----------------------------------------------------------------------------
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%%Structure: MSORULTK
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%%Contact: daleg
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Rule/lexer-token history record.
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----------------------------------------------------------------------------*/
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typedef struct _MSORULTK
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{
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void *pObject; // Object, e.g. doc
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MSOCP cpFirst; // First CP of token
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MSOCP dcp; // CP len of token
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int ich; // Char offset of tk
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long dich; // Num of chars of tk
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long wInterval; // Num intervals
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int tk; // Token number
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long lValue; // Token value
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} MSORULTK;
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#define irultkNil (-2)
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/* M S O R U L T K H */
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/*----------------------------------------------------------------------------
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%%Structure: MSORULTKH
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%%Contact: daleg
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Rule/lexer-token history cache structure.
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----------------------------------------------------------------------------*/
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typedef struct _MSORULTKH
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{
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MSORULTK *rgrultkCache; // History record list
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int irultkMac; // Lim of allocated
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int irultkMin; // User-defined marker
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int irultkLim; // Next cache index
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int irultkAbsBase; // Absolute irultk base
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} MSORULTKH;
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/* M S O C A */
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/*----------------------------------------------------------------------------
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%%Structure: MSOCA
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%%Contact: daleg
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Rule/lexer text range
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----------------------------------------------------------------------------*/
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typedef struct _MSOCA
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{
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void *pObject; // Object, e.g. doc
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long cpFirst; // First char pos
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long cpLim; // Lim char pos
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} MSOCA;
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// Define (D)elta of a (T)o(K)en cache index
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typedef int DTK;
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// Define (D)elta of a (T)o(K)en cache (I)nterval
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typedef int DTKI;
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// Token-history cache access
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#define PrultkFromIrultk(irultk, prultk) \
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(&prultk[irultk])
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// Move to next cache record, wrapping around if necessary
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#define IncrPrultk(pprultk, pirultk, prultkHist, irultkMax) \
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if (++(*pirultk) >= (irultkMax)) \
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{ \
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(*pirultk) = 0; \
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(*pprultk) = PrultkFromIrultk(0, prultkHist); \
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} \
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else \
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(*pprultk)++;
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// Move to next cache record, wrapping around if necessary
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#define DecrPrultk(pprultk, pirultk, prultkHist, irultkMax) \
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if (--(*pirultk) < 0) \
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{ \
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(*pirultk) += (irultkMax); \
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(*pprultk) += (irultkMax) - 1; \
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} \
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else \
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(*pprultk)--;
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// Move index to next cache record, wrapping around if necessary
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#define IncrPirultk(pirultk, dirultk, irultkMax) \
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if (((*pirultk) += dirultk) >= (irultkMax)) \
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(*pirultk) -= (irultkMax);
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// Move index to prev cache record, wrapping around if necessary
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#define DecrPirultk(pirultk, dirultk, irultkMax) \
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if (((*pirultk) -= dirultk) < 0) \
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(*pirultk) += (irultkMax);
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MSORULTK *PrultkExpand( // Expand cache
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MSORULTK **pprultkCache,
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int *pirultkMax,
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int irultkMax,
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int irultkSplit
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);
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// defines
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#define msodtkNotFound 30000 // arbitrarily lg. flag
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MSOEXTERN_C_END // ****************** End extern "C" *********************
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#endif /* EMRULTK_H */
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