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Annotation of 43BSD/contrib/icon/functions/any.c, revision 1.1.1.1

1.1       root        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)

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