4.4BSD/usr/src/contrib/news/trn3/rt-select.c
/* $Id: rt-select.c,v 3.0 1992/12/14 00:14:12 davison Trn $
*/
#include "EXTERN.h"
#include "common.h"
#include "trn.h"
#include "term.h"
#include "final.h"
#include "util.h"
#include "help.h"
#include "cache.h"
#include "bits.h"
#include "artsrch.h"
#include "ng.h"
#include "ngdata.h"
#include "ngstuff.h"
#include "kfile.h"
#include "rthread.h"
#include "rt-page.h"
#include "rt-util.h"
#include "INTERN.h"
#include "rt-select.h"
/* When display mode is 'l', each author gets a separate line; when 's', no
** authors are displayed.
*/
char *display_mode = select_order;
char sel_disp_char[] = { ' ', '+', '-', '*' };
static char sel_ret;
static bool empty_ok;
static bool disp_status_line;
static bool clean_screen;
/* Display a menu of threads/subjects/articles for the user to choose from.
** If "cmd" is '+' we display all the unread items and allow the user to mark
** them as selected and perform various commands upon them. If "cmd" is 'U'
** the list consists of previously-read items for the user to mark as unread.
*/
char
do_selector(cmd)
char_int cmd;
{
register int j;
int got_dash;
int ch, action;
char page_char, end_char;
char promptbuf[80];
char oldmode = mode;
char *in_select;
mode = 't';
sel_rereading = (cmd == 'U');
clear_on_stop = TRUE;
empty_ok = FALSE;
set_sel_mode(cmd);
if (!cache_range(sel_rereading? absfirst : firstart, lastart)) {
sel_ret = '+';
goto sel_exit;
}
start_selector:
/* Setup for selecting articles to read or set unread */
if (sel_rereading) {
page_char = '>';
end_char = 'Z';
sel_page_app = Null(ARTICLE**);
sel_page_sp = Nullsubj;
sel_mask = AF_DELSEL;
} else {
page_char = page_select;
end_char = end_select;
if (curr_artp) {
sel_last_ap = curr_artp;
sel_last_sp = curr_artp->subj;
}
sel_mask = AF_SEL;
}
selected_only = TRUE;
count_subjects(cmd ? CS_UNSEL_STORE : CS_NORM);
/* If nothing to display, we're done. */
if (!article_count && !empty_ok) {
empty_complaint();
sel_ret = '+';
goto sel_exit;
}
init_pages();
sel_item_index = 0;
*promptbuf = '\0';
disp_status_line = FALSE;
if (added_articles > 0) {
sprintf(promptbuf, "** %ld new article%s arrived ** ",
(long)added_articles, added_articles == 1? nullstr : "s");
disp_status_line = TRUE;
}
added_articles = 0;
if (cmd && selected_count) {
sprintf(promptbuf+strlen(promptbuf), "%ld article%s selected.",
(long)selected_count, selected_count == 1? " is" : "s are");
disp_status_line = TRUE;
}
cmd = 0;
display_selector:
/* Present a page of items to the user */
display_page();
/* Check if there is really anything left to display. */
if (!sel_item_cnt && !empty_ok) { /*TODO: this may not be needed anymore */
empty_complaint();
sel_ret = '+';
goto sel_exit;
}
empty_ok = FALSE;
if (sel_item_index >= sel_item_cnt)
sel_item_index = 0;
if (disp_status_line) {
printf("\n%s", promptbuf);
if (can_home) {
carriage_return();
goto_line(sel_last_line+1, sel_last_line);
} else
putchar('\n');
}
reask_selector:
/* Prompt the user */
#ifdef MAILCALL
setmail(FALSE);
#endif
if (sel_at_end)
sprintf(cmd_buf, "%s [%c%c] --",
(!sel_prior_arts? "All" : "Bot"), end_char, page_char);
else
sprintf(cmd_buf, "%s%ld%% [%c%c] --",
(!sel_prior_arts? "Top " : nullstr),
(long)((sel_prior_arts+sel_page_arts)*100 / sel_total_arts),
page_char, end_char);
sprintf(promptbuf, "%s-- %s %s (%s%s order) -- %s", mailcall,
sel_exclusive? "SELECTED" : "Select", sel_mode_string,
sel_direction<0? "reverse " : nullstr, sel_sort_string, cmd_buf);
#ifdef CLEAREOL
if (erase_screen && can_home_clear)
clear_rest();
#endif
standout();
fputs(promptbuf, stdout);
un_standout();
if (can_home)
carriage_return();
sel_line = sel_last_line;
position_selector:
got_dash = 0;
if (can_home)
goto_line(sel_line, sel_items[sel_item_index].line);
sel_line = sel_items[sel_item_index].line;
reinp_selector:
/* Grab some commands from the user */
fflush(stdout);
eat_typeahead();
spin_char = sel_chars[sel_item_index];
cache_until_key();
spin_char = ' ';
#ifdef CONDSUB
getcmd(buf);
ch = *buf;
#else
getcmd(cmd_buf); /* If no conditionals, don't allow macros */
buf[0] = ch = *cmd_buf;
buf[1] = FINISHCMD;
#endif
if (errno)
ch = Ctl('l');
if (disp_status_line) {
if (can_home) {
goto_line(sel_line, sel_last_line+1);
erase_eol();
sel_line = sel_last_line+1;
}
disp_status_line = FALSE;
}
if (ch == '-') {
got_dash = 1;
if (!can_home)
putchar('-'), fflush(stdout);
goto reinp_selector;
}
if (ch == ' ') {
if (sel_at_end)
ch = end_char;
else
ch = page_char;
}
in_select = index(sel_chars, ch);
if (in_select) {
j = in_select - sel_chars;
if (j >= sel_item_cnt) {
dingaling();
goto position_selector;
} else if (got_dash)
;
else if (sel_items[j].sel == 1)
action = (sel_rereading ? 'k' : '-');
else
action = '+';
} else if (ch == '*' && sel_mode == SM_ARTICLE) {
register ARTICLE *ap = (ARTICLE*)sel_items[sel_item_index].ptr;
if (sel_items[sel_item_index].sel)
deselect_subject(ap->subj);
else
select_subject(ap->subj, 0);
update_page();
goto position_selector;
} else if (ch == 'y' || ch == '.' || ch == '*') {
j = sel_item_index;
if (sel_items[j].sel == 1)
action = (sel_rereading ? 'k' : '-');
else
action = '+';
} else if (ch == 'k' || ch == 'j' || ch == ',') {
j = sel_item_index;
action = 'k';
} else if (ch == 'm' || ch == '\\') {
j = sel_item_index;
action = '-';
} else if (ch == 'M') {
j = sel_item_index;
action = 'M';
} else if (ch == '@') {
sel_item_index = 0;
j = sel_item_cnt-1;
got_dash = 1;
action = '@';
} else if (ch == '[' || ch == 'p') {
if (--sel_item_index < 0)
sel_item_index = sel_item_cnt ? sel_item_cnt-1 : 0;
goto position_selector;
} else if (ch == ']' || ch == 'n') {
if (++sel_item_index >= sel_item_cnt)
sel_item_index = 0;
goto position_selector;
} else {
sel_ret = ch;
switch (sel_command(ch)) {
case DS_POS:
if (!clean_screen)
goto display_selector;
goto position_selector;
case DS_ASK:
if (!clean_screen)
goto display_selector;
goto reask_selector;
case DS_DISPLAY:
ds_display:
if (disp_status_line)
strcpy(promptbuf, buf);
goto display_selector;
case DS_UPDATE:
if (!clean_screen)
goto ds_display;
if (disp_status_line) {
printf("\n%s",buf);
if (can_home) {
carriage_return();
up_line();
erase_eol();
}
}
update_page();
if (can_home) {
goto_line(sel_line, sel_last_line);
sel_line = sel_last_line;
}
goto reask_selector;
case DS_RESTART:
goto start_selector;
case DS_QUIT:
sel_cleanup();
if (!output_chase_phrase)
putchar('\n') FLUSH;
goto sel_exit;
case DS_STATUS:
disp_status_line = TRUE;
if (!clean_screen) {
strcpy(promptbuf, buf);
goto display_selector;
}
if (can_home) {
goto_line(sel_line, sel_last_line+1);
sel_line = sel_last_line+1;
} else
putchar('\n');
fputs(buf, stdout);
if (can_home)
carriage_return();
else
putchar('\n');
goto position_selector;
}
}
/* The user manipulated one of the letters -- handle it. */
if (!got_dash)
sel_item_index = j;
else {
if (j < sel_item_index) {
ch = sel_item_index-1;
sel_item_index = j;
j = ch;
}
}
if (++j == sel_item_cnt)
j = 0;
do {
register int sel = sel_items[sel_item_index].sel;
register SUBJECT *sp = (SUBJECT*)sel_items[sel_item_index].ptr;
if (can_home) {
goto_line(sel_line, sel_items[sel_item_index].line);
sel_line = sel_items[sel_item_index].line;
}
if (action == '@') {
if (sel == 2)
ch = (sel_rereading ? '+' : ' ');
else if (sel_rereading)
ch = 'k';
else if (sel == 1)
ch = '-';
else
ch = '+';
} else
ch = action;
switch (ch) {
case '+':
if (sel_mode == SM_THREAD)
select_thread(sp->thread, 0);
else if (sel_mode == SM_SUBJECT)
select_subject(sp, 0);
else
select_article((ARTICLE*)sp, 0);
output_sel(1);
break;
case '-': case 'k': case 'M':
{
bool sel_reread_save = sel_rereading;
if (ch == 'M') {
if (sel_mode == SM_ARTICLE)
delay_unmark((ARTICLE*)sp);
else {
register ARTICLE *ap;
if (sel_mode == SM_THREAD) {
for (ap = first_art(sp); ap; ap = next_art(ap))
if (!(ap->flags & AF_READ) ^ sel_rereading)
delay_unmark(ap);
} else {
for (ap = sp->articles; ap; ap = ap->subj_next)
if (!(ap->flags & AF_READ) ^ sel_rereading)
delay_unmark(ap);
}
}
}
if (ch == '-')
sel_rereading = FALSE;
else
sel_rereading = TRUE;
if (sel_mode == SM_THREAD)
deselect_thread(sp->thread);
else if (sel_mode == SM_SUBJECT)
deselect_subject(sp);
else
deselect_article((ARTICLE*)sp);
sel_rereading = sel_reread_save;
output_sel(ch == '-'? 0 : 2);
break;
}
}
fflush(stdout);
if (++sel_item_index == sel_item_cnt)
sel_item_index = 0;
if (can_home)
carriage_return();
} while (sel_item_index != j);
goto position_selector;
sel_exit:
if (sel_rereading) {
sel_rereading = 0;
sel_mask = AF_SEL;
}
if (sel_mode != SM_ARTICLE || sel_sort == SS_GROUPS
|| sel_sort == SS_SUBJECT) {
if (artptr_list) {
free((char*)artptr_list);
artptr_list = sel_page_app = Null(ARTICLE**);
sort_subjects();
}
artptr = Null(ARTICLE**);
#ifdef ARTSEARCH
if (!ThreadedGroup)
srchahead = -1;
#endif
}
#ifdef ARTSEARCH
else
srchahead = 0;
#endif
selected_only = (selected_count || !article_count);
if (sel_ret != '#')
count_subjects(sel_ret == '+'? CS_RESELECT : CS_UNSELECT);
clear_on_stop = FALSE;
mode = oldmode;
if (sel_ret == '+') {
art = curr_art;
artp = curr_artp;
} else
top_article();
return sel_ret;
}
static void
sel_cleanup()
{
if (sel_rereading) {
/* Turn selections into unread selected articles. Let
** count_subjects() fix the counts after we're through.
*/
register SUBJECT *sp;
sel_last_ap = Nullart;
sel_last_sp = Nullsubj;
for (sp = first_subject; sp; sp = sp->next)
unkill_subject(sp);
} else {
if (sel_mode == SM_ARTICLE) {
register ARTICLE *ap;
register ART_NUM an;
for (an=absfirst, ap=article_ptr(an); an<=lastart; an++, ap++) {
if (ap->flags & AF_DEL) {
ap->flags &= ~AF_DEL;
set_read(ap);
}
}
} else {
register SUBJECT *sp;
for (sp = first_subject; sp; sp = sp->next) {
if (sp->flags & SF_DEL) {
sp->flags &= ~SF_DEL;
if (sel_mode == SM_THREAD)
kill_thread(sp->thread, KF_UNSELECTED);
else
kill_subject(sp, KF_UNSELECTED);
}
}
}
}
}
static int
sel_command(ch)
char_int ch;
{
if (can_home)
goto_line(sel_line, sel_last_line);
sel_line = sel_last_line;
clean_screen = TRUE;
do_command:
output_chase_phrase = TRUE;
switch (ch) {
case '>':
sel_item_index = 0;
if (next_page())
return DS_DISPLAY;
return DS_POS;
case '<':
sel_item_index = 0;
if (prev_page())
return DS_DISPLAY;
return DS_POS;
case '^': case Ctl('r'):
sel_item_index = 0;
if (first_page())
return DS_DISPLAY;
return DS_POS;
case '$':
sel_item_index = 0;
if (last_page())
return DS_DISPLAY;
return DS_POS;
case Ctl('l'):
return DS_DISPLAY;
case Ctl('f'):
erase_eol(); /* erase the prompt */
#ifdef MAILCALL
setmail(TRUE); /* force a mail check */
#endif
return DS_ASK;
case '#':
{
register SUBJECT *sp;
for (sp = first_subject; sp; sp = sp->next)
sp->flags &= ~SF_VISIT;
selected_count = 0;
sp = (SUBJECT*)sel_items[sel_item_index].ptr;
switch (sel_mode) {
case SM_THREAD:
deselect_thread(sp->thread);
select_thread(sp->thread, 0);
break;
case SM_SUBJECT:
deselect_subject(sp);
select_subject(sp, 0);
break;
case SM_ARTICLE:
deselect_article((ARTICLE*)sp);
select_article((ARTICLE*)sp, 0);
break;
}
return DS_QUIT;
}
case '\r': case '\n':
if (!selected_count) {
if (sel_rereading || sel_items[sel_item_index].sel != 2) {
register SUBJECT *sp = (SUBJECT*)sel_items[sel_item_index].ptr;
switch (sel_mode) {
case SM_THREAD:
select_thread(sp->thread, 0);
break;
case SM_SUBJECT:
select_subject(sp, 0);
break;
case SM_ARTICLE:
select_article((ARTICLE*)sp, 0);
break;
}
}
}
return DS_QUIT;
case 'Z': case '\t':
return DS_QUIT;
case 'q': case 'Q':
return DS_QUIT;
case Ctl('Q'): case '\033': case '+':
sel_ret = '+';
return DS_QUIT;
case 'N': case 'P':
return DS_QUIT;
case 'L':
if (!*++display_mode)
display_mode = select_order;
return DS_DISPLAY;
case 'Y':
if (!dmcount) {
sprintf(buf,"No marked articles to yank back.");
return DS_STATUS;
}
yankback();
sel_line++;
if (!sel_rereading)
sel_cleanup();
disp_status_line = TRUE;
count_subjects(CS_NORM);
sel_page_sp = Nullsubj;
sel_page_app = Null(ARTICLE**);
init_pages();
return DS_DISPLAY;
case 'U':
sel_cleanup();
sel_rereading = !sel_rereading;
sel_page_sp = Nullsubj;
sel_page_app = Null(ARTICLE**);
if (!cache_range(sel_rereading? absfirst : firstart, lastart))
sel_rereading = !sel_rereading;
empty_ok = TRUE;
return DS_RESTART;
case '=':
if (!sel_rereading)
sel_cleanup();
if (sel_mode == SM_ARTICLE) {
set_selector(sel_threadmode, sel_threadsort);
sel_page_sp = sel_page_app[0]->subj;
} else {
set_selector(SM_ARTICLE, sel_artsort);
sel_page_app = 0;
}
count_subjects(CS_NORM);
sel_item_index = 0;
init_pages();
return DS_DISPLAY;
case 'S':
if (!sel_rereading)
sel_cleanup();
erase_eol(); /* erase the prompt */
reask_output:
in_char("Selector mode: Threads, Subjects, Articles? [tsa] ", 'o');
setdef(buf,"t");
#ifdef VERIFY
printcmd();
#endif
if (*buf == 'h') {
#ifdef VERBOSE
IF(verbose)
fputs("\n\
Type t or SP to display/select thread groups (threads the group, if needed).\n\
Type s to display/select subject groups.\n\
Type a to display/select individual articles.\n\
Type q to leave things as they are.\n\n\
",stdout) FLUSH;
ELSE
#endif
#ifdef TERSE
fputs("\n\
t or SP selects thread groups (threads the group too).\n\
s selects subject groups.\n\
a selects individual articles.\n\
q does nothing.\n\n\
",stdout) FLUSH;
#endif
clean_screen = FALSE;
goto reask_output;
} else if (*buf == 'q') {
if (can_home) {
carriage_return();
erase_eol();
}
return DS_ASK;
}
set_sel_mode(*buf);
count_subjects(CS_NORM);
init_pages();
return DS_DISPLAY;
case 'O':
if (!sel_rereading)
sel_cleanup();
erase_eol(); /* erase the prompt */
reask_sort:
if (sel_mode == SM_ARTICLE)
in_char("Order by Date, Subject, Author, subject-date Groups? [dsagDSAG] ",
'q');
else
in_char("Order by Date, Subject, or Count? [dscDSC] ", 'q');
setdef(buf,"d");
#ifdef VERIFY
printcmd();
#endif
if (*buf == 'h') {
#ifdef VERBOSE
IF(verbose) {
fputs("\n\
Type d or SP to order the displayed items by date.\n\
Type s to order the items by subject.\n\
",stdout) FLUSH;
if (sel_mode == SM_ARTICLE)
fputs("\
Type a to order the items by author.\n\
Type g to order the items in subject-groups by date.\n\
",stdout) FLUSH;
else
fputs("\
Type c to order the items by article-count.\n\
",stdout) FLUSH;
fputs("\
Typing your selection in upper case it will reverse the selected order.\n\
Type q to leave things as they are.\n\n\
",stdout) FLUSH;
}
ELSE
#endif
#ifdef TERSE
{
fputs("\n\
d or SP sorts by date.\n\
s sorts by subject.\n\
",stdout) FLUSH;
if (sel_mode == SM_ARTICLE)
fputs("\
a sorts by author.\n\
g sorts in subject-groups by date.\n\
",stdout) FLUSH;
else
fputs("\
c sorts by article-count.\n\
",stdout) FLUSH;
fputs("\
Upper case reverses the sort.\n\
q does nothing.\n\n\
",stdout) FLUSH;
}
#endif
clean_screen = FALSE;
goto reask_sort;
} else if (*buf == 'q') {
if (can_home) {
carriage_return();
erase_eol();
}
return DS_ASK;
}
set_sel_sort(*buf);
count_subjects(CS_NORM);
#if 0
sel_last_sp = (SUBJECT*)sel_items[sel_item_index].ptr;
sel_last_ap = sel_page_app[sel_item_index];
#else
sel_page_sp = Nullsubj;
sel_page_app = Null(ARTICLE**);
#endif
init_pages();
return DS_DISPLAY;
case 'R':
if (!sel_rereading)
sel_cleanup();
sel_direction *= -1;
count_subjects(CS_NORM);
#if 0
sel_last_sp = (SUBJECT*)sel_items[sel_item_index].ptr;
sel_last_ap = sel_page_app[sel_item_index];
#else
sel_page_sp = Nullsubj;
sel_page_app = Null(ARTICLE**);
#endif
init_pages();
return DS_DISPLAY;
case 'E':
if (!sel_rereading)
sel_cleanup();
sel_exclusive = !sel_exclusive;
count_subjects(CS_NORM);
sel_page_sp = Nullsubj;
sel_page_app = Null(ARTICLE**);
init_pages();
empty_ok = TRUE;
return DS_DISPLAY;
case 'X': case 'D': case 'J':
if (!sel_rereading) {
if (sel_mode == SM_ARTICLE) {
register ARTICLE *ap, **app, **limit;
limit = artptr_list + article_count;
if (ch == 'D')
app = sel_page_app;
else
app = artptr_list;
for (;;) {
ap = *app;
if ((!(ap->flags & AF_SEL) ^ (ch == 'J'))
|| (ap->flags & AF_DEL))
if (!sel_exclusive || (ap->flags & AF_INCLUDED))
set_read(ap);
app++;
if (app >= limit || (ch == 'D' && app == sel_next_app))
break;
}
} else {
register SUBJECT *sp;
if (ch == 'D')
sp = sel_page_sp;
else
sp = first_subject;
for (;;) {
if (((!(sp->flags & SF_SEL) ^ (ch == 'J')) && sp->misc)
|| (sp->flags & SF_DEL)) {
if (!sel_exclusive || (sp->flags & SF_INCLUDED))
kill_subject(sp, ch=='J'? KF_ALL : KF_UNSELECTED);
}
sp = sp->next;
if (!sp || (ch == 'D' && sp == sel_next_sp))
break;
}
}
count_subjects(CS_UNSELECT);
if (article_count
&& (ch == 'J' || (ch == 'D' && !selected_count))) {
if (ch == 'D') {
sel_page_sp = sel_next_sp;
sel_page_app = sel_next_app;
}
init_pages();
sel_item_index = 0;
return DS_DISPLAY;
}
if (artptr_list && article_count)
sort_articles();
return DS_QUIT;
} else if (ch == 'J') {
register SUBJECT *sp;
for (sp = first_subject; sp; sp = sp->next)
deselect_subject(sp);
selected_subj_cnt = selected_count = 0;
return DS_DISPLAY;
}
sprintf(buf,"That command does not work in the set-unread selector.");
return DS_STATUS;
case 'T':
if (!ThreadedGroup) {
sprintf(buf,"Group is not threaded.");
return DS_STATUS;
}
/* FALL THROUGH */
case 'A':
erase_eol(); /* erase the prompt */
if (sel_mode == SM_ARTICLE)
artp = (ARTICLE*)sel_items[sel_item_index].ptr;
else
artp = ((SUBJECT*)sel_items[sel_item_index].ptr)->articles;
art = article_num(artp);
/* This call executes the action too */
switch (ask_memorize(ch)) {
case 'j': case ',':
count_subjects(sel_rereading ? CS_NORM : CS_UNSELECT);
init_pages();
sprintf(buf,"Kill memorized.");
disp_status_line = TRUE;
return DS_DISPLAY;
case '.':
sprintf(buf,"Selection memorized.");
disp_status_line = TRUE;
return DS_DISPLAY;
case '+':
sprintf(buf,"Selection memorized.");
disp_status_line = TRUE;
return DS_UPDATE;
case 'c': case 'C':
sprintf(buf,"Auto-commands cleared.");
disp_status_line = TRUE;
return DS_DISPLAY;
case 'q':
return DS_DISPLAY;
case 'Q':
break;
}
if (can_home) {
carriage_return();
erase_eol();
}
return DS_ASK;
case Ctl('k'):
edit_kfile();
return DS_DISPLAY;
case ':': case '/': case '&': case '!':
erase_eol(); /* erase the prompt */
if (!finish_command(TRUE)) { /* get rest of command */
if (clean_screen)
return DS_ASK;
goto extend_done;
}
if (ch == '&' || ch == '!') {
one_command = TRUE;
perform(buf, FALSE);
one_command = FALSE;
putchar('\n') FLUSH;
clean_screen = FALSE;
} else {
int sel_art_save = selected_count;
if (ch == ':') {
clean_screen = (use_selected() == 2) && clean_screen;
if (!sel_rereading) {
register SUBJECT *sp;
for (sp = first_subject; sp; sp = sp->next) {
if (sp->flags & SF_DEL) {
sp->flags = 0;
if (sel_mode == SM_THREAD)
kill_thread(sp->thread, KF_UNSELECTED);
else
kill_subject(sp, KF_UNSELECTED);
}
}
}
} else {
/* Force the search to begin at absfirst or firstart,
** depending upon whether they specified the 'r' option.
*/
art = lastart+1;
page_line = 1;
switch (art_search(buf, sizeof buf, FALSE)) {
case SRCH_ERROR:
case SRCH_ABORT:
case SRCH_INTR:
fputs("\nInterrupted\n", stdout) FLUSH;
break;
case SRCH_DONE:
case SRCH_SUBJDONE:
fputs("Done\n", stdout) FLUSH;
break;
case SRCH_NOTFOUND:
fputs("\nNot found.\n", stdout) FLUSH;
break;
case SRCH_FOUND:
break;
}
clean_screen = FALSE;
}
/* Recount, in case something has changed. */
count_subjects(sel_rereading ? CS_NORM : CS_UNSELECT);
init_pages();
sel_item_index = 0;
sel_art_save -= selected_count;
if (sel_art_save) {
putchar('\n');
if (sel_art_save < 0) {
fputs("S", stdout);
sel_art_save *= -1;
} else
fputs("Des", stdout);
printf("elected %d article%s.",
sel_art_save, sel_art_save == 1 ? nullstr : "s");
clean_screen = FALSE;
}
if (!clean_screen)
putchar('\n') FLUSH;
}/* if !& else :/ */
if (clean_screen) {
carriage_return();
up_line();
erase_eol();
return DS_ASK;
}
extend_done:
if ((ch = pause_getcmd())) {
got_cmd:
if (ch > 0) {
/* try to optimize the screen update for some commands. */
if (!index(sel_chars, ch)
&& (index("<+>^$!?&:/hDEJLNOPqQRSUXYZ\n\r\t\033", ch)
|| ch == Ctl('k'))) {
buf[0] = sel_ret = ch;
buf[1] = FINISHCMD;
goto do_command;
}
pushchar(ch | 0200);
}
}
return DS_DISPLAY;
case 'c':
erase_eol(); /* erase the prompt */
if ((ch = ask_catchup()) == 'y' || ch == 'u') {
count_subjects(CS_UNSELECT);
if (ch != 'u' && article_count) {
sel_page_sp = Nullsubj;
sel_page_app = Null(ARTICLE**);
init_pages();
return DS_DISPLAY;
}
sel_ret = 'Z';
return DS_QUIT;
}
if (ch != 'N')
return DS_DISPLAY;
if (can_home) {
carriage_return();
erase_eol();
}
return DS_ASK;
case 'h': case '?':
putchar('\n');
if ((ch = help_select()) || (ch = pause_getcmd()))
goto got_cmd;
return DS_DISPLAY;
default:
sprintf(buf,"Type ? for help.");
settle_down();
if (clean_screen)
return DS_STATUS;
printf("\n%s\n",buf);
goto extend_done;
}
}
static void
empty_complaint()
{
clear_on_stop = FALSE;
putchar('\n');
if (sel_rereading) {
#ifdef VERBOSE
IF (verbose)
fputs("\nNo articles to set unread.\n", stdout);
ELSE
#endif
#ifdef TERSE
fputs("\nNo articles.\n", stdout) FLUSH;
#endif
sel_rereading = 0;
sel_mask = AF_SEL;
} else {
#ifdef VERBOSE
IF (verbose)
fputs("\nNo unread articles to select.", stdout);
ELSE
#endif
#ifdef TERSE
fputs("\nNo unread articles.", stdout);
#endif
putchar('\n'); /* let "them" FLUSH */
}
selected_only = FALSE;
art = curr_art;
artp = curr_artp;
}