usr/src/cmd/refer/hunt3.c

   1 /*
   2  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
   7 /*        All Rights Reserved   */
   8
   9 /*
  10  * Copyright (c) 1980 Regents of the University of California.
  11  * All rights reserved. The Berkeley software License Agreement
  12  * specifies the terms and conditions for redistribution.
  13  */
  14
  15 #pragma ident   "%Z%%M% %I%     %E% SMI"
  16
  17 #include <locale.h>
  18 #include "refer..c"
  19 #define BSIZ 250
  20
  21 int
  22 getq(char *v[])
  23 {
  24         static char buff[BSIZ];
  25         static int eof = 0;
  26         extern char *sinput;
  27         char *p;
  28         int c, n = 0, las = 0;
  29         if (eof)
  30                 return (-1);
  31         p = buff;
  32         while ((c = (sinput ? *sinput++ : getchar())) > 0) {
  33                 if (c == '\n')
  34                         break;
  35                 if (isalpha(c) || isdigit(c)) {
  36                         if (las == 0) {
  37                                 v[n++] = p;
  38                                 las = 1;
  39                         }
  40                         if (las++ <= 6)
  41                                 *p++ = c;
  42                 } else {
  43                         if (las > 0)
  44                                 *p++ = 0;
  45                         las = 0;
  46                 }
  47         }
  48         *p = 0;
  49         if (p > buff + BSIZ)
  50                 fprintf(stderr, gettext("query long than %d characters\n"),
  51                     BSIZ);
  52         assert(p < buff + BSIZ);
  53         if (sinput == 0 && c <= 0) eof = 1;
  54 #if D1
  55         fprintf(stderr, "no. keys %d\n", n);
  56         for (c = 0; c < n; c++)
  57                 fprintf(stderr, "keys X%sX\n", v[c]);
  58 #endif
  59         return (n);
  60 }