4.3BSD - /usr/src/new/icon/functions/any.c

   1: #include "../h/rt.h"
   2: 
   3: /*
   4:  * any(c,s,i,j) - test if first character of s[i:j] is in c.
   5:  */
   6: 
   7: Xany(nargs, arg4, arg3, arg2, arg1, arg0)
   8: int nargs;
   9: struct descrip arg4, arg3, arg2, arg1, arg0;
  10:    {
  11:    register int i, j;
  12:    long l1, l2;
  13:    int *cs, csbuf[CSETSIZE];
  14:    char sbuf[MAXSTRING];
  15: 
  16:    /*
  17:     * c must be a cset.  s defaults to &subject; i defaults to &pos if s
  18:     *  defaulted, 1 otherwise.  j defaults to 0.
  19:     */
  20:    if (cvcset(&arg1, &cs, csbuf) == NULL)
  21:       runerr(104, &arg1);
  22:    if (defstr(&arg2, sbuf, &k_subject))
  23:       defint(&arg3, &l1, k_pos);
  24:    else
  25:       defint(&arg3, &l1, 1);
  26:    defint(&arg4, &l2, 0);
  27: 
  28:    /*
  29:     * Convert i and j to positions in s. If i == j then the specified
  30:     *  substring of s is empty and any fails. Otherwise make i the smaller of
  31:     *  the two.  (j is of no further use.)
  32:     */
  33:    i = cvpos(l1, STRLEN(arg2));
  34:    j = cvpos(l2, STRLEN(arg2));
  35:    if (i == j)
  36:       fail();
  37:    if (i > j)
  38:       i = j;
  39: 
  40:    /*
  41:     * If s[i] is not in the cset c, fail.
  42:     */
  43:    if (!tstb(STRLOC(arg2)[i-1], cs))
  44:       fail();
  45: 
  46:    /*
  47:     * Return pos(s[i+1]).
  48:     */
  49:    arg0.type = D_INTEGER;
  50:    INTVAL(arg0) = i + 1;
  51:    }
  52: 
  53: Procblock(any,4)

Defined functions