int
edit_kfile()
{
notincl("^K");
return -1;
}
int
page_switch()
{
register char *s;
switch (*buf) {
case 'd':
case Ctl('d'): /* half page */
special = TRUE;
slines = LINES / 2 + 1;
if (marking && *blinebeg != '\f'
#ifdef CUSTOMLINES
&& (!pagestop || blinebeg != art_buf ||
!execute(&page_compex,blinebeg))
#endif
) {
up_line();
highlight = --artline;
restart = blinebeg;
artpos = alinebeg;
}
return PS_NORM;
case '!': /* shell escape */
escapade();
return PS_ASK;
#ifdef INNERSEARCH
case Ctl('i'):
gline = 3;
sprintf(cmd_buf,"^[^%c]",*blinebeg);
compile(&gcompex,cmd_buf,TRUE,TRUE);
goto caseG;
case Ctl('g'):
gline = 3;
compile(&gcompex,"^Subject:",TRUE,TRUE);
goto caseG;
case 'g': /* in-article search */
if (!finish_command(FALSE))/* get rest of command */
return PS_ASK;
s = buf+1;
if (isspace(*s))
s++;
if ((s = compile(&gcompex,s,TRUE,TRUE)) != Nullch) {
/* compile regular expression */
printf("\n%s\n",s) FLUSH;
return PS_ASK;
}
carriage_return();
erase_eol(); /* erase the prompt */
/* FALL THROUGH */
caseG:
case 'G': {
/* ART_LINE lines_to_skip = 0; */
ART_POS start_where;
if (gline < 0 || gline > LINES-2)
gline = LINES-2;
#ifdef DEBUGGING
if (debug & DEB_INNERSRCH)
printf("Start here? %d >=? %d\n",topline + gline + 1,artline)
FLUSH;
#endif
if (*buf == Ctl('i') || topline+gline+1 >= artline)
start_where = artpos;
/* in case we had a line wrap */
else {
start_where = vrdary(topline+gline+1);
if (start_where < 0)
start_where = -start_where;
}
if (start_where < htype[PAST_HEADER].ht_minpos)
start_where = htype[PAST_HEADER].ht_minpos;
fseek(artfp,(long)start_where,0);
innersearch = 0; /* assume not found */
while (fgets(buf, sizeof buf, artfp) != Nullch) {
/* lines_to_skip++; NOT USED NOW */
#ifdef DEBUGGING
if (debug & DEB_INNERSRCH)
printf("Test %s",buf) FLUSH;
#endif
if (execute(&gcompex,buf) != Nullch) {
innersearch = ftell(artfp);
break;
}
}
if (!innersearch) {
fseek(artfp,artpos,0);
fputs("(Not found)",stdout) FLUSH;
return PS_ASK;
}
#ifdef DEBUGGING
if (debug & DEB_INNERSRCH)
printf("On page? %ld <=? %ld\n",(long)innersearch,(long)artpos)
FLUSH;
#endif
if (innersearch <= artpos) { /* already on page? */
if (innersearch < artpos) {
artline = topline+1;
while (vrdary(artline) < innersearch)
artline++;
}
highlight = artline - 1;
#ifdef DEBUGGING
if (debug & DEB_INNERSRCH)
printf("@ %d\n",highlight) FLUSH;
#endif
topline = highlight - gline;
if (topline < -1)
topline = -1;
*buf = '\f'; /* fake up a refresh */
innersearch = 0;
return page_switch();
}
else { /* who knows how many lines it is? */
do_fseek = TRUE;
hide_everything = TRUE;
}
return PS_NORM;
}
#else
case 'g': case 'G': case Ctl('g'):
notincl("g");
return PS_ASK;
#endif
case '\n': /* one line */
special = TRUE;
slines = 2;
return PS_NORM;
#ifdef ROTATION
case 'X':
rotate = !rotate;
/* FALL THROUGH */
#endif
case 'l':
case '\f': /* refresh screen */
#ifdef DEBUGGING
if (debug & DEB_INNERSRCH) {
printf("Topline = %d",topline) FLUSH;
gets(buf);
}
#endif
clear();
do_fseek = TRUE;
artline = topline;
if (artline < 0)
artline = 0;
firstpage = (topline < 0);
return PS_NORM;
case 'b':
case '\b': /* I like backspace for this -- PWP */
/* Leaving it undocumented in case */
/* I want to steal the key--LAW */
case Ctl('b'): { /* back up a page */
ART_LINE target;
#ifndef CLEAREOL
clear();
#else
if (can_home_clear) /* if we can home do it -- PWP */
home_cursor();
else
clear();
#endif CLEAREOL
do_fseek = TRUE; /* reposition article file */
target = topline - (LINES - 2);
artline = topline;
do {
artline--;
} while (artline >= 0 && artline > target &&
vrdary(artline-1) >= 0);
topline = artline;
/* remember top line of screen */
/* (line # within article file) */
if (artline < 0)
artline = 0;
firstpage = (topline < 0);
return PS_NORM;
}
case 'h': { /* help */
int cmd;
if ((cmd = help_page()) > 0)
pushchar(cmd);
return PS_ASK;
}
case '\177':
case '\0': /* treat del,break as 'n' */
*buf = 'n';
/* FALL THROUGH */
case 'k': case 'K':
case 'n': case 'N': case Ctl('n'):
case 's': case 'S':
case 'u':
case 'w': case 'W':
case '|':
mark_as_read(art); /* mark article as read */
/* FALL THROUGH */
case '#':
case '$':
case '&':
case '-':
case '.':
case '/':
case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
case '=':
case '?':
case 'c': case 'C':
case 'f': case 'F':
case 'j':
case Ctl('k'):
case 'm': case 'M':
case 'p': case 'P': case Ctl('p'):
case 'Q':
case 'r': case 'R': case Ctl('r'):
case 'v':
case 'Y':
#ifndef ROTATION
case 'x': case 'X':
#endif
case Ctl('x'):
case '^':
#ifdef ROTATION
rotate = FALSE;
#endif
reread = FALSE;
do_hiding = TRUE;
if (index("nNpP",*buf) == Nullch &&
index("wWsS!&|/?123456789.",*buf) != Nullch) {
setdfltcmd();
standout(); /* enter standout mode */
printf(prompt,mailcall,dfltcmd);
/* print prompt, whatever it is */
un_standout(); /* leave standout mode */
putchar(' ');
fflush(stdout);
}
return PS_RAISE; /* and pretend we were at end */
#ifdef ROTATION
case 'x':
rotate = TRUE;
/* FALL THROUGH */
#endif
case 'y':
case Ctl('v'): /* I like emacs -- PWP */
/* Leaving it undocumented in case */
/* I want to steal the key--LAW */
case ' ': /* continue current article */
if (erase_screen) { /* -e? */
#ifndef CLEAREOL
clear(); /* clear screen */
#else
if (can_home_clear) /* if we can home do it -- PWP */
home_cursor();
else
clear(); /* else clear screen */
#endif CLEAREOL
if (*blinebeg != '\f'
#ifdef CUSTOMLINES
&& (!pagestop || blinebeg != art_buf ||
!execute(&page_compex,blinebeg))
#endif
) {
restart = blinebeg;
artline--; /* restart this line */
artpos = alinebeg;
if (marking) /* and mark repeated line */
highlight = artline;
}
topline = artline;
/* and remember top line of screen */
/* (line # within article file) */
}
else if (marking && *blinebeg != '\f'
#ifdef CUSTOMLINES
&& (!pagestop || blinebeg != art_buf ||
!execute(&page_compex,blinebeg))
#endif
) {
/* are we marking repeats? */
up_line(); /* go up one line */
highlight = --artline;/* and get ready to highlight */
restart = blinebeg; /* the old line */
artpos = alinebeg;
}
return PS_NORM;
case 'q': /* quit this article? */
do_hiding = TRUE;
return PS_TOEND;
default:
fputs(hforhelp,stdout) FLUSH;
settle_down();
return PS_ASK;
}
}