BSD 4_3 development

[unix-history] / usr / contrib / rn / search.h

/* $Header: search.h,v 4.3 85/05/01 11:50:46 lwall Exp $
*
* $Log:        search.h,v $
* Revision 4.3  85/05/01  11:50:46  lwall
* Baseline for release with 4.3bsd.
* 
*/

#ifndef NBRA
#define NBRA    10              /* the maximum number of meta-brackets in an
                                  RE -- \( \) */
#define NALTS   10              /* the maximum number of \|'s */

typedef struct {        
   char *expbuf;               /* The compiled search string */
   int eblen;                  /* Length of above buffer */
   char *alternatives[NALTS];  /* The list of \| seperated alternatives */
   char *braslist[NBRA];       /* RE meta-bracket start list */
   char *braelist[NBRA];       /* RE meta-bracket end list */
   char *brastr;               /* saved match string after execute() */
   char nbra;                  /* The number of meta-brackets int the most
                                  recenlty compiled RE */
   bool do_folding;            /* fold upper and lower case? */
} COMPEX;

void    search_init();
void    init_compex();
void    free_compex();
char    *getbracket();
void    case_fold();
char    *compile(); 
void    grow_eb();
char    *execute(); 
bool    advance();
bool    backref(); 
bool    cclass(); 
#endif