/usr/include/clips/pattern.h is in libclips-dev 6.24-3.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/* "C" Language Integrated Production System */
/* */
/* CLIPS Version 6.24 05/17/06 */
/* */
/* PATTERN HEADER FILE */
/*******************************************************/
/*************************************************************/
/* Purpose: Provides the mechanism for recognizing and */
/* parsing the various types of patterns that can be used */
/* in the LHS of a rule. In version 6.0, the only pattern */
/* types provided are for deftemplate and instance */
/* patterns. */
/* */
/* Principal Programmer(s): */
/* Gary D. Riley */
/* */
/* Contributing Programmer(s): */
/* */
/* Revision History: */
/* */
/* 6.24: Removed LOGICAL_DEPENDENCIES compilation flag. */
/* */
/* Renamed BOOLEAN macro type to intBool. */
/* */
/*************************************************************/
#ifndef _H_pattern
#define _H_pattern
#ifndef _STDIO_INCLUDED_
#include <stdio.h>
#define _STDIO_INCLUDED_
#endif
#ifndef _H_evaluatn
#include "evaluatn.h"
#endif
struct patternEntityRecord
{
struct entityRecord base;
void (*decrementBasisCount)(void *,void *);
void (*incrementBasisCount)(void *,void *);
void (*matchFunction)(void *,void *);
intBool (*synchronized)(void *,void *);
};
typedef struct patternEntityRecord PTRN_ENTITY_RECORD;
typedef struct patternEntityRecord *PTRN_ENTITY_RECORD_PTR;
struct patternEntity
{
struct patternEntityRecord *theInfo;
void *dependents;
unsigned busyCount;
long int timeTag;
};
typedef struct patternEntity PATTERN_ENTITY;
typedef struct patternEntity * PATTERN_ENTITY_PTR;
struct patternParser;
#ifndef _H_symbol
#include "symbol.h"
#endif
#ifndef _H_scanner
#include "scanner.h"
#endif
#ifndef _H_expressn
#include "expressn.h"
#endif
#ifndef _H_match
#include "match.h"
#endif
#ifndef _H_reorder
#include "reorder.h"
#endif
#ifndef _H_constrnt
#include "constrnt.h"
#endif
#define MAXIMUM_NUMBER_OF_PATTERNS 128
struct patternParser
{
char *name;
struct patternEntityRecord *entityType;
int positionInArray;
int (*recognizeFunction)(SYMBOL_HN *);
struct lhsParseNode *(*parseFunction)(void *,char *,struct token *);
int (*postAnalysisFunction)(void *,struct lhsParseNode *);
struct patternNodeHeader *(*addPatternFunction)(void *,struct lhsParseNode *);
void (*removePatternFunction)(void *,struct patternNodeHeader *);
struct expr *(*genJNConstantFunction)(void *,struct lhsParseNode *);
void (*replaceGetJNValueFunction)(void *,struct expr *,struct lhsParseNode *);
struct expr *(*genGetJNValueFunction)(void *,struct lhsParseNode *);
struct expr *(*genCompareJNValuesFunction)(void *,struct lhsParseNode *,struct lhsParseNode *);
struct expr *(*genPNConstantFunction)(void *,struct lhsParseNode *);
void (*replaceGetPNValueFunction)(void *,struct expr *,struct lhsParseNode *);
struct expr *(*genGetPNValueFunction)(void *,struct lhsParseNode *);
struct expr *(*genComparePNValuesFunction)(void *,struct lhsParseNode *,struct lhsParseNode *);
void (*returnUserDataFunction)(void *,void *);
void *(*copyUserDataFunction)(void *,void *);
void (*markIRPatternFunction)(void *,struct patternNodeHeader *,int);
void (*incrementalResetFunction)(void *);
struct lhsParseNode *(*initialPatternFunction)(void *);
void (*codeReferenceFunction)(void *,void *,FILE *,int,int);
int priority;
struct patternParser *next;
};
struct reservedSymbol
{
char *theSymbol;
char *reservedBy;
struct reservedSymbol *next;
};
#define MAX_POSITIONS 8
#define PATTERN_DATA 19
struct patternData
{
struct patternParser *ListOfPatternParsers;
struct patternParser *PatternParserArray[MAX_POSITIONS];
int NextPosition;
struct reservedSymbol *ListOfReservedPatternSymbols;
int WithinNotCE;
int GlobalSalience;
int GlobalAutoFocus;
struct expr *SalienceExpression;
};
#define PatternData(theEnv) ((struct patternData *) GetEnvironmentData(theEnv,PATTERN_DATA))
#ifdef LOCALE
#undef LOCALE
#endif
#ifdef _PATTERN_SOURCE_
#define LOCALE
#else
#define LOCALE extern
#endif
LOCALE void InitializePatterns(void *);
LOCALE int AddPatternParser(void *,struct patternParser *);
LOCALE struct patternParser *FindPatternParser(void *,char *);
LOCALE void DetachPattern(void *,int,struct patternNodeHeader *);
LOCALE void GetNextPatternEntity(void *,
struct patternParser **,
struct patternEntity **);
LOCALE struct patternParser *GetPatternParser(void *,int);
LOCALE struct lhsParseNode *RestrictionParse(void *,char *,struct token *,int,
struct symbolHashNode *,short,
struct constraintRecord *,short);
LOCALE int PostPatternAnalysis(void *,struct lhsParseNode *);
LOCALE void PatternNodeHeaderToCode(void *,FILE *,struct patternNodeHeader *,int,int);
LOCALE void AddReservedPatternSymbol(void *,char *,char *);
LOCALE intBool ReservedPatternSymbol(void *,char *,char *);
LOCALE void ReservedPatternSymbolErrorMsg(void *,char *,char *);
#endif
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