234 lines
9.1 KiB
C
234 lines
9.1 KiB
C
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/**********************************************************************
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// FIND.H
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//
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// Copyright (c) 1992 - Microsoft Corp.
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// All rights reserved.
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// Microsoft Confidential
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//
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// Include file with #defines and prototypes for qgrep functions used
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// by the Jaguar search engine.
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**********************************************************************/
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#include <setjmp.h>
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//*********************************************************************
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// Constant definitions.
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//*********************************************************************
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#if 0
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typedef long (far pascal *FIND_CALLBACK)( int Func, unsigned uArg0,\
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void far *pArg1, void far *pArg2,\
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void far *pArg3 );
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#define FLG_FIND_NOMATCH 0x0001 // Display non-matching lines
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#define FLG_FIND_COUNT 0x0002 // Display on count of matching lines
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#define FLG_FIND_LINENO 0x0004 // Display line numbers on output
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#endif
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#define FIND_FILE 0x0100 // Only searching for a file (EXCLUSIVE)
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#define FIND_NOT 0x0200 // Searching for /NOT strings
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#define BUFLEN 256 // Temporary buffer length
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#define PATMAX 512 // Maximum parsed pattern length
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#define MAXSTRLEN 128 // Maximum search string length
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#define TRTABLEN 256 // Translation table length
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// Total bytes in StringList array
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#define STRING_LST_LEN ((TRTABLEN + 1) * sizeof(char *))
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// #ifndef NOASM
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// #define match exprmatch
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// #endif
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//*********************************************************************
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// Pattern token types.
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//*********************************************************************
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#define T_END 0 // End of expression
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#define T_STRING 1 // String to match
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#define T_SINGLE 2 // Single character to match
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#define T_CLASS 3 // Class to match
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#define T_ANY 4 // Match any character
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#define T_STAR 5 // *-expr
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//*********************************************************************
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//*********************************************************************
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typedef struct stringnode
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{
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struct stringnode *s_alt; // List of alternates
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struct stringnode *s_suf; // List of suffixes
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int s_must; // Length of portion that must match
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}
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STRINGNODE; // String node
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// Text field access macro
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#define s_text(x) ( ((char *)(x)) + (sizeof( STRINGNODE ) + ((x)->s_must & 1)) )
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//*********************************************************************
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// Type definitions.
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//*********************************************************************
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typedef struct exprnode
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{
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struct exprnode *ex_next; // Next node in list
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struct exprnode *ex_dummy; // Needed by freenode()
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char *ex_pattern; // Pointer to pattern to match
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}
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EXPR; // Expression node
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//*********************************************************************
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// QGREP function prototypes
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//*********************************************************************
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extern void (*addstr)( char *s, int n );
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extern char *(*find) ( char *buffer, char *bufend );
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extern void (*flush1)( void );
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extern int (*grep) ( char *startbuf, char *endbuf, char *name, int *first );
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extern void (*write1)( char *buffer, int buflen );
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int InitGrepInfo( char *pStrLst, char *pNotList, unsigned uOpts );
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int FreeGrepBufs( void );
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int InitGrepBufs( void );
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int FileFindGrep( int fHandle, unsigned fFlags,
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long (far pascal *AppCb)( int Func,
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unsigned uArg0,
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void far *pArg1,
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unsigned long ulArg2 ) );
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void addexpr ( char *e, int n );
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void addstring ( char *s, int n );
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int addstrings ( char *buffer, char *bufend, char *seplist, int *first );
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void addtoken ( char *e, int n );
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char *alloc ( unsigned size );
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void bitset ( unsigned char *bitvec, int first, int last, int bitval );
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int enumlist ( struct stringnode *node, int cchprev );
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int enumstrings ( void );
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int exprmatch ( char *s, char *p );
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char *exprparse ( char *p, int *NewBufLen );
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char *findall ( char *buffer, char *bufend );
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char *findlist ( char *buffer, char *bufend );
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char *findone ( char *buffer, char *bufend );
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void freenode ( struct stringnode *x );
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char *get1stcharset( char *e, unsigned char *bitvec );
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int isexpr ( char *s, int n );
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int istoken ( char *s, int n );
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void maketd1 ( unsigned char *pch, int cch, int cchstart );
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int match ( char *s, char *p );
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void matchstrings( char *s1, char *s2, int len, int *nmatched,
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int *leg );
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STRINGNODE *newnode ( char *s, int n );
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static int newstring ( unsigned char *s, int n );
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char *NextEol ( char *pchChar, char *EndBuf );
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int preveol ( char *s );
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STRINGNODE *reallocnode( register STRINGNODE *node, char *s, int n );
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char *simpleprefix( char *s, char **pp );
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int strncspn ( char *s, char *t, int n );
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int strnspn ( char *s, char *t, int n );
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char *strnupr ( char *pch, int cch );
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void SwapSrchTables( void );
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int cmpicase ( char * buf1, char * buf2, unsigned int count );
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char *findexpr ( char *buffer, char *bufend );
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//*********************************************************************
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// Bit flag definitions
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//*********************************************************************
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#define SHOWNAME 0x001 // Print filename
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#define NAMEONLY 0x002 // Print filename only
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#define LINENOS 0x004 // Print line numbers
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#define BEGLINE 0x008 // Match at beginning of line
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#define ENDLINE 0x010 // Match at end of line
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#define DEBUG 0x020 // Print debugging output
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#define TIMER 0x040 // Time execution
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#define SEEKOFF 0x080 // Print seek offsets
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#define ALLLINES 0x100 // Print all lines before/after match
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#define COLNOS 0x200 // Show column numbers (if LINENOS)
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#define CNTMATCH 0x400 // Show count of matching lines
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#define NEWDISP 0x800
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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//*********************************************************************
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// Miscellaneous constants.
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//*********************************************************************
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#define EOS ('\r') // End of string character
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//*********************************************************************
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// Data shared among source files.
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//*********************************************************************
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extern char *Target; // Buffer for srch string being added
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extern int CaseSen; // Case-sensitivity flag
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extern int Flags; // Flags
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extern int StrCount; // String count
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extern jmp_buf ErrorJmp; // Storage location for setjmp()
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// All of the data below is located in DATA.ASM to allow swapping
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// blocks of search data with a single memmove() call.
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#define SWAP_LEN ((sizeof( int ) * 8) + (sizeof( char * ) * 4))
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#define INIT_LEN (sizeof( int ) * 8)
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// Storage for "string" search trees.
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extern int DummyFirst;
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extern int TblEntriesUsed; // Number of transtab entries used
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extern int ExprEntriesUsed; // Number of expression strings used
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extern int StrCount; // String count
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extern int TargetLen; // Length of last string added
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extern int MaxChar; // Max char value in srch string
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extern int MinChar; // Min char value in srch string
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extern int ShortStrLen; // Min string length added to list
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extern char **ExprStrList; // Array of ptrs to srch expressions
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extern STRINGNODE **StringList; // Array of ptrs to srch strings
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extern unsigned char *td1; // Ptr to TD1 shift table
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extern unsigned char *TransTable; // Allocated in grepmain()
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extern int nDummyFirst;
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extern int nTblEntriesUsed; // Number of transtab entries used
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extern int nExprEntriesUsed; // Number of expression strings used
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extern int nStrCount; // String count
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extern int nTargetLen; // Length of last string added
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extern unsigned nMaxChar; // Max char value in search string
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extern unsigned nMinChar; // Min char value in srch string
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extern int nShortStrLen; // Min string length added to list
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extern char **nExprStrList; // Array of ptrs to srch expressions
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extern STRINGNODE **nStringList; // Array of ptrs to srch strings
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extern unsigned char *ntd1; // Ptr to TD1 shift table
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extern unsigned char *nTransTable; // Allocated in grepmain()
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extern unsigned InitialSearchData; // First word in area containing
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// initial search values.
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extern char *ReadBuf; // Ptr to buffer for file reads
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extern char *Target; // Tmp buf for string being added
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extern unsigned char *achcol; // Ptr to collate table
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//*********************************************************************
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// Added for purposes of integrating the message subsysstem
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//*********************************************************************
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struct sublistx
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{
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unsigned char size; // sublist size
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unsigned char reserved; // reserved for future growth
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unsigned far *value; // pointer to replaceable parm
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unsigned char id; // type of replaceable parm
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unsigned char Flags; // how parm is to be displayed
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unsigned char max_width; // max width of replaceable field
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unsigned char min_width; // min width of replaceable field
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unsigned char pad_char; // pad character for replaceable field
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};
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