int _which_one(QSP_ARG_DECL const char *prompt, int n, const char** choices)
{
int i;
int nmatches=0;
int lastmatch=(-1); /* init to elim warning */
const char *user_response;
#ifdef HAVE_HISTORY
check_preload(prompt, n, choices);
#endif /* HAVE_HISTORY */
user_response = nameof(prompt);
for(i=0;i<n;i++){
assert(choices[i]!=NULL);
if( !strcmp( user_response, choices[i] ) ){
return(i);
}
}
/* if no exact match check for substring match */
for(i=0;i<n;i++)
if( is_a_substring( user_response, choices[i] ) ){
lastmatch=i;
nmatches++;
}
if( nmatches==1 ){
sprintf(ERROR_STRING,"Unambiguous substring match of \"%s\" to \"%s\"",
user_response,choices[lastmatch]);
//advise(ERROR_STRING);
warn(ERROR_STRING);
return(lastmatch);
}
else if( nmatches > 1 ){
sprintf(ERROR_STRING,"ambiguous choice \"%s\"",user_response);
warn(ERROR_STRING);
return(-1);
}
sprintf(ERROR_STRING,"invalid choice \"%s\"",user_response);
warn(ERROR_STRING);
sprintf(ERROR_STRING,"valid selections for %s are:",prompt);
advise(ERROR_STRING);
for(i=0;i<n;i++){
sprintf(ERROR_STRING,"\t%s",choices[i]);
advise(ERROR_STRING);
}
#ifdef HAVE_HISTORY
if( intractive() ) rem_def(prompt,user_response) ;
#endif /* HAVE_HISTORY */
return(-1);
}
static void _check_preload(QSP_ARG_DECL const char *prompt, int n, const char **choices)
{
const char *pline;
if( ! IS_COMPLETING(THIS_QSP) ) return;
if( ! intractive() ) return;
if( *prompt == 0 ) return;
// Need to format the prompt!
pline = format_prompt(PROMPT_FORMAT, prompt);
preload_history_list(pline,n,choices);
}
Data_Obj *_pick_obj(QSP_ARG_DECL const char *pmpt)
{
const char *s;
if( pmpt==NULL || *pmpt==0 )
pmpt="data object"; /* default prompt */
#ifdef HAVE_HISTORY
/* pick_item() won't accept names with appended subscripts;
* therefore use nameof and initialize the choices manually
*/
/* We might accidentally call this before dataobj_init()... */
if( dobj_itp == NULL ) dataobj_init(); // probably unnecessary now that we
// call this when initializing a query stack...
// That was done to get number formatting,
// but probably that should be pulled out of data objects...
if( intractive() ) init_item_hist(dobj_itp,pmpt);
#endif /* HAVE_HISTORY */
s=NAMEOF(pmpt);
return( get_obj(s) );
}
static COMMAND_FUNC( do_chng_one )
{
Param *p;
const char **pnlist;
int nlist=0;
int i=0;
const char *s;
p=theptbl;
/* count the number of parameters */
while( p->p_type != NULL_P_TYPE ) {
nlist++;
p++;
}
pnlist = (const char **) getbuf( (nlist+1) * sizeof(char *) );
if( pnlist == NULL ) mem_err("do_chng_one");
#ifdef HAVE_HISTORY
if( intractive(SINGLE_QSP_ARG) && IS_TRACKING_HISTORY(THIS_QSP) ){
List *lp;
Node *np;
lp = new_list();
for(i=0;i<nlist;i++){
pnlist[i] = theptbl[i].p_name;
np = mk_node(&theptbl[i]);
addTail(lp,np);
}
pnlist[i]="all";
np = mk_node(&pnlist[i]);
addTail(lp,np);
if( intractive(SINGLE_QSP_ARG) ){
char pline[LLEN];
make_prompt(QSP_ARG pline,PNAME_PMPT);
new_defs(QSP_ARG pline); /* is this needed? */
init_hist_from_item_list(QSP_ARG PNAME_PMPT,lp);
}
dellist(lp);
}
#else /* ! HAVE_HISTORY */
for(i=0;i<nlist;i++)
pnlist[i] = theptbl[i].p_name;
#endif /* ! HAVE_HISTORY */
s=NAMEOF(PNAME_PMPT);
if( !strcmp(s,"all") ){
p=theptbl;
while( p->p_type != NULL_P_TYPE ) {
getparm(QSP_ARG p);
showparm(QSP_ARG p);
p++;
}
return;
} else if( get_pval(QSP_ARG s,theptbl) == -1 ){
sprintf(ERROR_STRING,"Unknown parameter \"%s\"",s);
WARN(ERROR_STRING);
}
}
