void display_help(CMDENTRY cmds[])
{
const int maxdescwidth = 47;
int i;
char desc[MAXDESCSZ+1];
char* cp;
char* ed;
fprintf(stdout,"%-20s %-10s %s\n","Command,Abbrev","Args","Description");
for ( i=0 ; !STREMP(cmds[i].cmd); i++ ) {
char s[MAXBUFSZ+1];
/* ignore commands with no description (probably hidden) */
if (strlen(cmds[i].description) == 0) continue;
snprintf(s,MAXBUFSZ,"%s,%s",cmds[i].cmd,cmds[i].abbrev);
strncpy(desc,cmds[i].description,MAXDESCSZ);
ed = desc+strlen(desc);
cp = strbrk(desc,maxdescwidth);
*cp = '\0';cp++;
fprintf(stdout,"%-20s %-10s %s\n",s,cmds[i].args,desc);
while (cp < ed) {
char* scp = cp;
cp = strbrk(scp,maxdescwidth);
*cp = '\0'; cp++;
fprintf(stdout,"%20s %10s %s\n","","",scp);
}
}
}
void find_cmd(char* cmdbuf,CMDENTRY cmds[])
{
int i;
char* cp;
cp = non_ws(cmdbuf); /* locate first non-whitespace character */
cblk.nargs = tokenise(cmdbuf,cmd,arg,qual,all);
cblk.arg = arg;
cblk.qualifier = qual;
cblk.qual_int = atoi(qual);
cblk.all = all;
cblk.cmd = cmd;
cblk.function = NULL;
cblk.unknown_cmd = FALSE;
for ( i=0 ; !STREMP(cmds[i].cmd); i++ ) {
if (strlen(cmds[i].abbrev) == 1 && /* look for special command */
cmds[i].abbrev[0] < 'A' &&
*cp == cmds[i].abbrev[0]) {
cblk.function = cmds[i].function;
cblk.all = cp+1;
return;
}
else if (strncmp(cmd,cmds[i].cmd,MAXBUFSZ) == 0 ||
strncmp(cmd,cmds[i].abbrev,MAXBUFSZ) == 0) {
cblk.function = cmds[i].function;
strncpy(cblk.cmd,cmds[i].cmd,MAXBUFSZ);
cblk.cmd[MAXBUFSZ-1] = '\0';
/* does # args match that required? */
if (cmds[i].nargs != 0 &&
cmds[i].nargs != cblk.nargs) {
cblk.nargs = -1;
}
return;
}
}
/* empty sentinal command should invoke unknown command handler */
if (!STREMP(cblk.cmd)) {
cblk.function = cmds[i].function;
cblk.unknown_cmd = TRUE;
}
return;
}
void display_help(CMDENTRY cmds[],char* cmd)
{
const int maxdescwidth = 47;
int i;
char desc[MAXDESCSZ+1];
char* cp;
char* ed;
if (STREMP(cmd)) {
fprintf(stdout,"%-20s %-10s %s\n","Command,Abbrev","Args",
"Description");
}
for ( i=0 ; !STREMP(cmds[i].cmd); i++ ) {
char s[MAXBUFSZ+1];
/* ignore commands with no description (probably hidden) */
if (strlen(cmds[i].description) == 0) continue;
if (STREMP(cmd) || (strncmp(cmds[i].cmd,cmd,MAXBUFSZ) == 0) ||
(strncmp(cmds[i].abbrev,cmd,MAXBUFSZ) == 0)) {
snprintf(s,MAXBUFSZ,"%s,%s",cmds[i].cmd,cmds[i].abbrev);
strncpy(desc,cmds[i].description,MAXDESCSZ);
ed = desc+strlen(desc);
cp = strbrk(desc,maxdescwidth);
*cp = '\0';cp++;
fprintf(stdout,"%-20s %-10s %s\n",s,cmds[i].args,desc);
while (cp < ed) {
char* scp = cp;
cp = strbrk(scp,maxdescwidth);
*cp = '\0'; cp++;
fprintf(stdout,"%20s %10s %s\n","","",scp);
}
if (!STREMP(cmd)) return;
}
}
if (!STREMP(cmd)) {
strncpy(cblk.cmd,cmd,MAXBUFSZ); /* copy cmd to correct loc in
* cblk */
cblk.cmd[MAXBUFSZ-1] = '\0';
(cmds[i].function)(&cblk);
}
}
