Return to any.c CVS log

Up to [CSRG BSD Unix] / 43BSD / contrib / icon / functions

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

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.