Function dowhatdoes_core

src/pager.c:2576–2655

#endif /* 0 */

char *
dowhatdoes_core(char q, char *cbuf)
{
    char buf[BUFSZ];
#if 0
    dlb *fp;
    struct wd_stack_frame stack[WD_STACKLIMIT];
    boolean cond;
    int ctrl, meta, depth = 0, lnum = 0;
#endif /* 0 */
    const char *ec_desc;

    if ((ec_desc = key2extcmddesc(q)) != NULL) {
        char keybuf[QBUFSZ];

        /* note: if "%-8s" gets changed, the "%8.8s" in dowhatdoes() will
           need a comparable change */
        Sprintf(buf, "%-8s%s.", key2txt(q, keybuf), ec_desc);
        Strcpy(cbuf, buf);
        return cbuf;
    }
    return 0;
#if 0
    fp = dlb_fopen(CMDHELPFILE, "r");
    if (!fp) {
        pline("Cannot open \"%s\" data file!", CMDHELPFILE);
        return 0;
    }

    meta = (0x80 & (uchar) q) != 0;
    if (meta)
        q &= 0x7f;
    ctrl = (0x1f & (uchar) q) == (uchar) q;
    if (ctrl)
        q |= 0x40; /* NUL -> '@', ^A -> 'A', ... ^Z -> 'Z', ^[ -> '[', ... */
    else if (q == 0x7f)
        ctrl = 1, q = '?';

    (void) memset((genericptr_t) stack, 0, sizeof stack);
    cond = stack[0].active = 1;
    while (dlb_fgets(buf, sizeof buf, fp)) {
        ++lnum;
        if (buf[0] == '&' && buf[1] && strchr("?:.#", buf[1])) {
            cond = whatdoes_cond(buf, stack, &depth, lnum);
            continue;
        }
        if (!cond)
            continue;
        if (meta ? (buf[0] == 'M' && buf[1] == '-'
                    && (ctrl ? buf[2] == '^' && highc(buf[3]) == q
                             : buf[2] == q))
                 : (ctrl ? buf[0] == '^' && highc(buf[1]) == q
                         : buf[0] == q)) {
            (void) strip_newline(buf);
            if (strchr(buf, '\t'))
                (void) tabexpand(buf);
            if (meta && ctrl && buf[4] == ' ') {
                (void) strncpy(buf, "M-^?    ", 8);