gnu1987/gnucmds/fgrep/MkDescVec.c

#include "bm.h"
#include <strings.h>
/* scan a newline-separated string of patterns and set up the
* vector of descriptors, one pattern descriptor per pattern. 
* Return the number of patterns */
int
MkDescVec(DescVec , Pats)
     struct PattDesc *DescVec[];
     char *Pats;
{
  int NPats = 0;
  char *EndPat;
  extern struct PattDesc *MakeDesc();
  while (*Pats && (EndPat = index(Pats,'\n')) && NPats < MAXPATS)
    {
      *EndPat = '\0';
      DescVec[NPats] = MakeDesc(Pats);
      Pats = EndPat + 1;
      ++NPats;
    }				/* while */
  if (*Pats && NPats < MAXPATS)
    {
      DescVec[NPats] = MakeDesc(Pats);
      ++NPats;
    }				/* if */
  return(NPats);
}				/* MkDescVec */