/*ARGSUSED*/
copyregion(f, n)
{
register LINE *linep;
register int loffs;
register int s;
REGION region;
VOID kdelete();
if ((s=getregion(®ion)) != TRUE)
return s;
if ((lastflag&CFKILL) == 0) /* Kill type command. */
kdelete();
thisflag |= CFKILL;
linep = region.r_linep; /* Current line. */
loffs = region.r_offset; /* Current offset. */
while (region.r_size--) {
if (loffs == llength(linep)) { /* End of line. */
if ((s=kinsert('\n', KFORW)) != TRUE)
return (s);
linep = lforw(linep);
loffs = 0;
} else { /* Middle of line. */
if ((s=kinsert(lgetc(linep, loffs), KFORW)) != TRUE)
return s;
++loffs;
}
}
#ifdef CLIPBOARD
send_clipboard();
#endif /* CLIPBOARD */
return TRUE;
}
/* ARGSUSED */
int
killline(int f, int n)
{
struct line *nextp;
RSIZE chunk;
int i, c;
/* clear kill buffer if last wasn't a kill */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
if (!(f & FFARG)) {
for (i = curwp->w_doto; i < llength(curwp->w_dotp); ++i)
if ((c = lgetc(curwp->w_dotp, i)) != ' ' && c != '\t')
break;
if (i == llength(curwp->w_dotp))
chunk = llength(curwp->w_dotp) - curwp->w_doto + 1;
else {
chunk = llength(curwp->w_dotp) - curwp->w_doto;
if (chunk == 0)
chunk = 1;
}
} else if (n > 0) {
chunk = llength(curwp->w_dotp) - curwp->w_doto;
nextp = lforw(curwp->w_dotp);
if (nextp != curbp->b_headp)
chunk++; /* newline */
if (nextp == curbp->b_headp)
goto done; /* EOL */
i = n;
while (--i) {
chunk += llength(nextp);
nextp = lforw(nextp);
if (nextp != curbp->b_headp)
chunk++; /* newline */
if (nextp == curbp->b_headp)
break; /* EOL */
}
} else {
/* n <= 0 */
chunk = curwp->w_doto;
curwp->w_doto = 0;
i = n;
while (i++) {
if (lforw(curwp->w_dotp))
chunk++;
curwp->w_dotp = lback(curwp->w_dotp);
curwp->w_rflag |= WFMOVE;
chunk += llength(curwp->w_dotp);
}
}
/*
* KFORW here is a bug. Should be KBACK/KFORW, but we need to
* rewrite the ldelete code (later)?
*/
done:
if (chunk)
return (ldelete(chunk, KFORW));
return (TRUE);
}
/*
* Copy all of the characters in the
* region to the kill buffer. Don't move dot
* at all. This is a bit like a kill region followed
* by a yank. Bound to "M-W".
*/
int
copyregion(int f, int n)
{
register LINE *linep;
register int loffs;
register int s;
REGION region;
if ((s=getregion(®ion, curwp->w_markp, curwp->w_marko)) != TRUE)
return (s);
if ((lastflag&CFKILL) == 0) /* Kill type command. */
kdelete();
thisflag |= CFKILL;
linep = region.r_linep; /* Current line. */
loffs = region.r_offset; /* Current offset. */
while (region.r_size--) {
if (loffs == llength(linep)) { /* End of line. */
if ((s=kinsert('\n')) != TRUE)
return (s);
linep = lforw(linep);
loffs = 0;
} else { /* Middle of line. */
if ((s=kinsert(lgetc(linep, loffs).c)) != TRUE)
return (s);
++loffs;
}
}
return (TRUE);
}
/*ARGSUSED*/
copybuffer(f, n)
{
register LINE *linep, *elinep;
register int loffs;
register int s;
VOID kdelete();
kdelete();
thisflag |= CFKILL;
elinep = curbp->b_linep;
linep = lforw(elinep);
loffs = 0;
while (1) {
if (loffs == llength(linep)) { /* End of line. */
linep = lforw(linep);
if (linep == elinep) {
break;
}
loffs = 0;
s = kinsert('\n', KFORW);
if (s != TRUE) {
return s;
}
}
else { /* Middle of line. */
s = kinsert(lgetc(linep, loffs), KFORW);
if (s != TRUE) {
return s;
}
loffs++;
}
}
#ifdef CLIPBOARD
send_clipboard();
#endif /* CLIPBOARD */
ewprintf("Done");
return TRUE;
}
/*
* Kill the region. Ask "getregion"
* to figure out the bounds of the region.
* Move "." to the start, and kill the characters.
* If an argument is provided, don't put the
* characters in the kill buffer (useful if
* you run out of memory while editing).
*/
int
killregion (int f, int n, int k)
{
register int s;
REGION region;
if ((s = getregion (®ion)) != TRUE)
return (s);
kdelete (); /* Purge kill buffer */
curwp->w_dot = region.r_pos;
return (ldelete (region.r_size, !f));
}
/*
* Delete forward. This is real easy, because the basic delete routine does
* all of the work. Watches for negative arguments, and does the right thing.
* If any argument is present, it kills rather than deletes, to prevent loss
* of text if typed with a big argument. Normally bound to "C-D"
*/
int forwdel(int f, int n)
{
if (n < 0)
return (backdel(f, -n));
if (f != FALSE)
{ /* Really a kill */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
}
return (ldelete(n, f));
}
/* ARGSUSED */
int
delbword(int f, int n)
{
RSIZE size;
int s;
if ((s = checkdirty(curbp)) != TRUE)
return (s);
if (curbp->b_flag & BFREADONLY) {
dobeep();
ewprintf("Buffer is read-only");
return (FALSE);
}
if (n < 0)
return (FALSE);
/* purge kill buffer */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
if (backchar(FFRAND, 1) == FALSE)
/* hit buffer start */
return (TRUE);
/* one deleted */
size = 1;
while (n--) {
while (inword() == FALSE) {
if (backchar(FFRAND, 1) == FALSE)
/* hit buffer start */
goto out;
++size;
}
while (inword() != FALSE) {
if (backchar(FFRAND, 1) == FALSE)
/* hit buffer start */
goto out;
++size;
}
}
if (forwchar(FFRAND, 1) == FALSE)
return (FALSE);
/* undo assumed delete */
--size;
out:
return (ldelete(size, KBACK));
}
/*
* Delete backwards. This is quite easy too, because it's all done with other
* functions. Just move the cursor back, and delete forwards. Like delete
* forward, this actually does a kill if presented with an argument. Bound to
* both "RUBOUT" and "C-H"
*/
int backdel(int f, int n)
{
int s;
if (n < 0)
return (forwdel(f, -n));
if (f != FALSE)
{ /* Really a kill */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
}
if ((s = backchar(f, n)) == TRUE)
s = ldelete(n, f);
return (s);
}
/* ARGSUSED */
int
delfword(int f, int n)
{
RSIZE size;
struct line *dotp;
int doto;
int s;
if ((s = checkdirty(curbp)) != TRUE)
return (s);
if (curbp->b_flag & BFREADONLY) {
dobeep();
ewprintf("Buffer is read-only");
return (FALSE);
}
if (n < 0)
return (FALSE);
/* purge kill buffer */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
dotp = curwp->w_dotp;
doto = curwp->w_doto;
size = 0;
while (n--) {
while (inword() == FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
/* hit the end of the buffer */
goto out;
++size;
}
while (inword() != FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
/* hit the end of the buffer */
goto out;
++size;
}
}
out:
curwp->w_dotp = dotp;
curwp->w_doto = doto;
return (ldelete(size, KFORW));
}
/* ARGSUSED */
int
killregion(int f, int n)
{
int s;
struct region region;
if ((s = getregion(®ion)) != TRUE)
return (s);
/* This is a kill-type command, so do magic kill buffer stuff. */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
curwp->w_dotp = region.r_linep;
curwp->w_doto = region.r_offset;
s = ldelete(region.r_size, KFORW);
clearmark(FFARG, 0);
return (s);
}
/*
* zotedit() - kills the buffer and frees all lines associated with it!!!
*/
void
zotedit(void)
{
wheadp->w_linep = wheadp->w_dotp = wheadp->w_markp = wheadp->w_imarkp = NULL;
bheadp->b_linep = bheadp->b_dotp = bheadp->b_markp = NULL;
free((char *) wheadp); /* clean up window */
wheadp = NULL;
curwp = NULL;
free((char *) bheadp); /* clean up buffers */
bheadp = NULL;
curbp = NULL;
zotheader(); /* blast header lines */
kdelete(); /* blast kill buffer */
}
/* ARGSUSED */
int
transposepara(int f, int n)
{
int i = 0, status;
char flg;
if (n == 0)
return (TRUE);
undo_boundary_enable(FFRAND, 0);
/* find a paragraph, set mark, then goto the end */
gotobop(FFRAND, 1);
curwp->w_markp = curwp->w_dotp;
curwp->w_marko = curwp->w_doto;
(void)gotoeop(FFRAND, 1);
/* take a note of buffer flags - we may need them */
flg = curbp->b_flag;
/* clean out kill buffer then kill region */
kdelete();
if ((status = killregion(FFRAND, 1)) != TRUE)
return (status);
/*
* Now step through n paragraphs. If we reach the end of buffer,
* stop and paste the killed region back, then display a message.
*/
if (do_gotoeop(FFRAND, n, &i) == FALSE) {
ewprintf("Cannot transpose paragraph, end of buffer reached.");
(void)gotobop(FFRAND, i);
(void)yank(FFRAND, 1);
curbp->b_flag = flg;
return (FALSE);
}
(void)yank(FFRAND, 1);
undo_boundary_enable(FFRAND, 1);
return (TRUE);
}
/*ARGSUSED*/
killregion(f, n)
{
register int s;
REGION region;
#ifdef READONLY /* 91.01.05 by S.Yoshida */
if (curbp->b_flag & BFRONLY) { /* If this buffer is read-only, */
warnreadonly(); /* do only displaying warning. */
return TRUE;
}
#endif /* READONLY */
if ((s=getregion(®ion)) != TRUE)
return (s);
if ((lastflag&CFKILL) == 0) /* This is a kill type */
kdelete(); /* command, so do magic */
thisflag |= CFKILL; /* kill buffer stuff. */
curwp->w_dotp = region.r_linep;
curwp->w_doto = region.r_offset;
return (ldelete(region.r_size, KFORW));
}
/* ARGSUSED */
int
copyregion(int f, int n)
{
struct line *linep;
struct region region;
int loffs;
int s;
if ((s = getregion(®ion)) != TRUE)
return (s);
/* kill type command */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
/* current line */
linep = region.r_linep;
/* current offset */
loffs = region.r_offset;
while (region.r_size--) {
if (loffs == llength(linep)) { /* End of line. */
if ((s = kinsert('\n', KFORW)) != TRUE)
return (s);
linep = lforw(linep);
loffs = 0;
} else { /* Middle of line. */
if ((s = kinsert(lgetc(linep, loffs), KFORW)) != TRUE)
return (s);
++loffs;
}
}
clearmark(FFARG, 0);
return (TRUE);
}
/*
* Kill text. If called without an argument, it kills from dot to the end of
* the line, unless it is at the end of the line, when it kills the newline.
* If called with an argument of 0, it kills from the start of the line to
* dot. If called with a positive argument, it kills from dot forward over
* that number of newlines. If called with a negative argument it kills
* backwards that number of newlines. Normally bound to "C-K"
*/
int killtext(int f, int n)
{
LINE *nextp;
int chunk;
if ((lastflag & CFKILL) == 0)/* Clear kill buffer if last wasn't a kill */
kdelete();
thisflag |= CFKILL;
if (f == FALSE)
{
chunk = llength(curwp->w_dotp) - curwp->w_doto;
if (chunk == 0)
chunk = 1;
}
else if (n == 0)
{
chunk = curwp->w_doto;
curwp->w_doto = 0;
}
else if (n > 0)
{
chunk = llength(curwp->w_dotp) - curwp->w_doto + 1;
nextp = lforw(curwp->w_dotp);
while (--n)
{
if (nextp == curbp->b_linep)
return (FALSE);
chunk += llength(nextp) + 1;
nextp = lforw(nextp);
}
}
else
{
mlwrite("neg kill");
return (FALSE);
}
return (ldelete(chunk, TRUE));
}
/*
* Delete backwards. This is quite easy too, because it's all done with other
* functions. Just move the cursor back, and delete forwards. Like delete
* forward, this actually does a kill if presented with an argument. Bound to
* both "RUBOUT" and "C-H".
*/
int
backdel(int f, int n)
{
register int s;
if (curbp->b_mode&MDVIEW) /* don't allow this command if */
return(rdonly()); /* we are in read only mode */
if (n < 0)
return (forwdel(f, -n));
if(TERM_OPTIMIZE && curwp->w_dotp != curwp->w_bufp->b_linep){
int l;
if(worthit(&l) && curwp->w_doto == 0 &&
lback(curwp->w_dotp) != curwp->w_bufp->b_linep){
if(l == curwp->w_toprow)
scrollup(curwp, l+1, 1);
else if(llength(lback(curwp->w_dotp)) == 0)
scrollup(curwp, l-1, 1);
else
scrollup(curwp, l, 1);
}
}
if (f != FALSE) { /* Really a kill. */
if ((lastflag&CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
}
if ((s=backchar(f, n)) == TRUE)
s = ldelete((long) n, f ? kinsert : NULL);
return (s);
}
/*
* killtext - delete the line that the cursor is currently in.
* a greatly pared down version of its former self.
*/
int
killtext(int f, int n)
{
register int chunk;
int opt_scroll = 0;
if (curbp->b_mode&MDVIEW) /* don't allow this command if */
return(rdonly()); /* we are in read only mode */
if ((lastflag&CFKILL) == 0) /* Clear kill buffer if */
kdelete(); /* last wasn't a kill. */
if(gmode & MDDTKILL){ /* */
if((chunk = llength(curwp->w_dotp) - curwp->w_doto) == 0){
chunk = 1;
if(TERM_OPTIMIZE)
opt_scroll = 1;
}
}
else{
gotobol(FALSE, 1); /* wack from bol past newline */
chunk = llength(curwp->w_dotp) + 1;
if(TERM_OPTIMIZE)
opt_scroll = 1;
}
/* optimize what motion we can */
if(opt_scroll && (curwp->w_dotp != curwp->w_bufp->b_linep)){
int l;
if(worthit(&l))
scrollup(curwp, l, 1);
}
thisflag |= CFKILL;
return(ldelete((long) chunk, kinsert));
}
/*
* Delete forward. This is real easy, because the basic delete routine does
* all of the work. Watches for negative arguments, and does the right thing.
* If any argument is present, it kills rather than deletes, to prevent loss
* of text if typed with a big argument. Normally bound to "C-D".
*/
int
forwdel(int f, int n)
{
if (curbp->b_mode&MDVIEW) /* don't allow this command if */
return(rdonly()); /* we are in read only mode */
if (n < 0)
return (backdel(f, -n));
if(TERM_OPTIMIZE && (curwp->w_dotp != curwp->w_bufp->b_linep)){
int l;
if(worthit(&l) && curwp->w_doto == llength(curwp->w_dotp))
scrollup(curwp, l+1, 1);
}
if (f != FALSE) { /* Really a kill. */
if ((lastflag&CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
}
return (ldelete((long) n, f ? kinsert : NULL));
}
/*
* Copy all of the characters in the
* region to the kill buffer. Don't move dot
* at all. This is a bit like a kill region followed
* by a yank.
*/
int
copyregion (int f, int n, int k)
{
register LINE *linep;
register int loffs;
register int chunk;
REGION region;
if (getregion (®ion) != TRUE)
return (FALSE);
kdelete (); /* Purge kill buffer */
linep = region.r_pos.p; /* Current line. */
loffs = region.r_pos.o; /* Current offset. */
while (region.r_size > 0)
{
if (loffs == llength (linep))
{ /* End of line. */
if (kinsert ("\n", 1) != TRUE)
return (FALSE);
linep = lforw (linep);
loffs = 0;
region.r_size--;
}
else
{ /* Middle of line. */
chunk = llength (linep) - loffs;
if (chunk > region.r_size)
chunk = region.r_size;
if (kinsert (lgets (linep) + loffs, chunk) != TRUE)
return (FALSE);
loffs += chunk;
region.r_size -= chunk;
}
}
return (TRUE);
}
/*
* Kill the region. Ask "getregion"
* to figure out the bounds of the region.
* Move "." to the start, and kill the characters.
* Bound to "C-W".
*/
int
killregion(int f, int n)
{
REGION region;
if (curbp->b_mode&MDVIEW) /* don't allow this command if */
return(rdonly()); /* we are in read only mode */
if (getregion(®ion, curwp->w_markp, curwp->w_marko) != TRUE){
return (killtext(f, n));
}else {
mlerase();
}
if ((lastflag&CFKILL) == 0) /* This is a kill type */
kdelete(); /* command, so do magic */
thisflag |= CFKILL; /* kill buffer stuff. */
curwp->w_dotp = region.r_linep;
curwp->w_doto = region.r_offset;
curwp->w_markp = NULL;
#ifdef _WINDOWS
mswin_allowcopycut(NULL);
#endif
if(ldelete(region.r_size, kinsert)){
if(curwp->w_dotp == curwp->w_linep && curwp->w_dotp == curbp->b_linep){
curwp->w_force = 0; /* Center dot. */
curwp->w_flag |= WFFORCE;
}
return(TRUE);
}
return (FALSE);
}
static char *
veread(const char *fp, char *buf, size_t nbuf, int flag, va_list ap)
{
int dynbuf = (buf == NULL);
int cpos, epos; /* cursor, end position in buf */
int c, i, y;
int cplflag = FALSE; /* display completion list */
int cwin = FALSE; /* completion list created */
int mr = 0; /* match left arrow */
int ml = 0; /* match right arrow */
int esc = 0; /* position in esc pattern */
struct buffer *bp; /* completion list buffer */
struct mgwin *wp; /* window for compl list */
int match; /* esc match found */
int cc, rr; /* saved ttcol, ttrow */
char *ret; /* return value */
static char emptyval[] = ""; /* XXX hackish way to return err msg*/
if (inmacro) {
if (dynbuf) {
if ((buf = malloc(maclcur->l_used + 1)) == NULL)
return (NULL);
} else if (maclcur->l_used >= nbuf)
return (NULL);
bcopy(maclcur->l_text, buf, maclcur->l_used);
buf[maclcur->l_used] = '\0';
maclcur = maclcur->l_fp;
return (buf);
}
epos = cpos = 0;
ml = mr = esc = 0;
cplflag = FALSE;
if ((flag & EFNEW) != 0 || ttrow != nrow - 1) {
ttcolor(CTEXT);
ttmove(nrow - 1, 0);
epresf = TRUE;
} else
eputc(' ');
eformat(fp, ap);
if ((flag & EFDEF) != 0) {
if (buf == NULL)
return (NULL);
eputs(buf);
epos = cpos += strlen(buf);
}
tteeol();
ttflush();
for (;;) {
c = getkey(FALSE);
if ((flag & EFAUTO) != 0 && c == CCHR('I')) {
if (cplflag == TRUE) {
complt_list(flag, buf, cpos);
cwin = TRUE;
} else if (complt(flag, c, buf, nbuf, epos, &i) == TRUE) {
cplflag = TRUE;
epos += i;
cpos = epos;
}
continue;
}
cplflag = FALSE;
if (esc > 0) { /* ESC sequence started */
match = 0;
if (ml == esc && key_left[ml] && c == key_left[ml]) {
match++;
if (key_left[++ml] == '\0') {
c = CCHR('B');
esc = 0;
}
}
if (mr == esc && key_right[mr] && c == key_right[mr]) {
match++;
if (key_right[++mr] == '\0') {
c = CCHR('F');
esc = 0;
}
}
if (match == 0) {
esc = 0;
continue;
/* hack. how do we know esc pattern is done? */
}
if (esc > 0) {
esc++;
continue;
}
}
switch (c) {
case CCHR('A'): /* start of line */
while (cpos > 0) {
if (ISCTRL(buf[--cpos]) != FALSE) {
ttputc('\b');
--ttcol;
}
ttputc('\b');
--ttcol;
}
ttflush();
break;
case CCHR('D'):
if (cpos != epos) {
tteeol();
epos--;
rr = ttrow;
cc = ttcol;
for (i = cpos; i < epos; i++) {
buf[i] = buf[i + 1];
eputc(buf[i]);
}
ttmove(rr, cc);
ttflush();
}
break;
case CCHR('E'): /* end of line */
while (cpos < epos) {
eputc(buf[cpos++]);
}
ttflush();
break;
case CCHR('B'): /* back */
if (cpos > 0) {
if (ISCTRL(buf[--cpos]) != FALSE) {
ttputc('\b');
--ttcol;
}
ttputc('\b');
--ttcol;
ttflush();
}
break;
case CCHR('F'): /* forw */
if (cpos < epos) {
eputc(buf[cpos++]);
ttflush();
}
break;
case CCHR('Y'): /* yank from kill buffer */
i = 0;
while ((y = kremove(i++)) >= 0 && y != '\n') {
int t;
if (dynbuf && epos + 1 >= nbuf) {
void *newp;
size_t newsize = epos + epos + 16;
if ((newp = realloc(buf, newsize))
== NULL)
goto memfail;
buf = newp;
nbuf = newsize;
}
if (!dynbuf && epos + 1 >= nbuf) {
ewprintf("Line too long");
return (emptyval);
}
for (t = epos; t > cpos; t--)
buf[t] = buf[t - 1];
buf[cpos++] = (char)y;
epos++;
eputc((char)y);
cc = ttcol;
rr = ttrow;
for (t = cpos; t < epos; t++)
eputc(buf[t]);
ttmove(rr, cc);
}
ttflush();
break;
case CCHR('K'): /* copy here-EOL to kill buffer */
kdelete();
for (i = cpos; i < epos; i++)
kinsert(buf[i], KFORW);
tteeol();
epos = cpos;
ttflush();
break;
case CCHR('['):
ml = mr = esc = 1;
break;
case CCHR('J'):
c = CCHR('M');
/* FALLTHROUGH */
case CCHR('M'): /* return, done */
/* if there's nothing in the minibuffer, abort */
if (epos == 0 && !(flag & EFNUL)) {
(void)ctrlg(FFRAND, 0);
ttflush();
return (NULL);
}
if ((flag & EFFUNC) != 0) {
if (complt(flag, c, buf, nbuf, epos, &i)
== FALSE)
continue;
if (i > 0)
epos += i;
}
buf[epos] = '\0';
if ((flag & EFCR) != 0) {
ttputc(CCHR('M'));
ttflush();
}
if (macrodef) {
struct line *lp;
if ((lp = lalloc(cpos)) == NULL)
goto memfail;
lp->l_fp = maclcur->l_fp;
maclcur->l_fp = lp;
lp->l_bp = maclcur;
maclcur = lp;
bcopy(buf, lp->l_text, cpos);
}
ret = buf;
goto done;
case CCHR('G'): /* bell, abort */
eputc(CCHR('G'));
(void)ctrlg(FFRAND, 0);
ttflush();
ret = NULL;
goto done;
case CCHR('H'): /* rubout, erase */
case CCHR('?'):
if (cpos != 0) {
y = buf[--cpos];
epos--;
ttputc('\b');
ttcol--;
if (ISCTRL(y) != FALSE) {
ttputc('\b');
ttcol--;
}
rr = ttrow;
cc = ttcol;
for (i = cpos; i < epos; i++) {
buf[i] = buf[i + 1];
eputc(buf[i]);
}
ttputc(' ');
if (ISCTRL(y) != FALSE) {
ttputc(' ');
ttputc('\b');
}
ttputc('\b');
ttmove(rr, cc);
ttflush();
}
break;
case CCHR('X'): /* kill line */
case CCHR('U'):
while (cpos != 0) {
ttputc('\b');
ttputc(' ');
ttputc('\b');
--ttcol;
if (ISCTRL(buf[--cpos]) != FALSE) {
ttputc('\b');
ttputc(' ');
ttputc('\b');
--ttcol;
}
epos--;
}
ttflush();
break;
case CCHR('W'): /* kill to beginning of word */
while ((cpos > 0) && !ISWORD(buf[cpos - 1])) {
ttputc('\b');
ttputc(' ');
ttputc('\b');
--ttcol;
if (ISCTRL(buf[--cpos]) != FALSE) {
ttputc('\b');
ttputc(' ');
ttputc('\b');
--ttcol;
}
epos--;
}
while ((cpos > 0) && ISWORD(buf[cpos - 1])) {
ttputc('\b');
ttputc(' ');
ttputc('\b');
--ttcol;
if (ISCTRL(buf[--cpos]) != FALSE) {
ttputc('\b');
ttputc(' ');
ttputc('\b');
--ttcol;
}
epos--;
}
ttflush();
break;
case CCHR('\\'):
case CCHR('Q'): /* quote next */
c = getkey(FALSE);
/* FALLTHROUGH */
default:
if (dynbuf && epos + 1 >= nbuf) {
void *newp;
size_t newsize = epos + epos + 16;
if ((newp = realloc(buf, newsize)) == NULL)
goto memfail;
buf = newp;
nbuf = newsize;
}
if (!dynbuf && epos + 1 >= nbuf) {
ewprintf("Line too long");
return (emptyval);
}
for (i = epos; i > cpos; i--)
buf[i] = buf[i - 1];
buf[cpos++] = (char)c;
epos++;
eputc((char)c);
cc = ttcol;
rr = ttrow;
for (i = cpos; i < epos; i++)
eputc(buf[i]);
ttmove(rr, cc);
ttflush();
}
}
done:
if (cwin == TRUE) {
/* blow away cpltion window */
bp = bfind("*Completions*", TRUE);
if ((wp = popbuf(bp, WEPHEM)) != NULL) {
if (wp->w_flag & WEPHEM) {
curwp = wp;
delwind(FFRAND, 1);
} else {
killbuffer(bp);
}
}
}
return (ret);
memfail:
if (dynbuf && buf)
free(buf);
ewprintf("Out of memory");
return (emptyval);
}
/* Justify the entire buffer instead of just a paragraph */
int
fillbuf(int f, int n)
{
LINE *eobline;
REGION region;
if(curbp->b_mode&MDVIEW){ /* don't allow this command if */
return(rdonly()); /* we are in read only mode */
}
else if (fillcol == 0) { /* no fill column set */
mlwrite_utf8("No fill column set", NULL);
return(FALSE);
}
if((lastflag & CFFILL) && (lastflag & CFFLBF)){
/* no use doing a full justify twice */
thisflag |= (CFFLBF | CFFILL);
return(TRUE);
}
/* record the pointer of the last line */
if(gotoeob(FALSE, 1) == FALSE)
return(FALSE);
eobline = curwp->w_dotp; /* last line of buffer */
if(!llength(eobline))
eobline = lback(eobline);
/* and back to the beginning of the buffer */
gotobob(FALSE, 1);
thisflag |= CFFLBF; /* CFFILL also gets set in fillpara */
if(!Pmaster)
sgarbk = TRUE;
curwp->w_flag |= WFMODE;
/*
* clear the kill buffer, that's where we'll store undo
* information, we can't do the fill buffer because
* fillpara relies on its contents
*/
kdelete();
curwp->w_doto = 0;
getregion(®ion, eobline, llength(eobline));
/* Put full message in the kill buffer for undo */
if(!ldelete(region.r_size, kinsert))
return(FALSE);
/* before yank'ing, clear lastflag so we don't just unjustify */
lastflag &= ~(CFFLBF | CFFILL);
/* Now in kill buffer, bring back text to use in fillpara */
yank(FALSE, 1);
gotobob(FALSE, 1);
/* call fillpara until we're at the end of the buffer */
while(curwp->w_dotp != curbp->b_linep)
if(!(fillpara(FALSE, 1)))
return(FALSE);
return(TRUE);
}
/*
* This is the general command execution routine. It handles the fake binding
* of all the keys to "self-insert". It also clears out the "thisflag" word,
* and arranges to move it to the "lastflag", so that the next command can
* look at it. Return the status of command.
*/
int
execute(UCS c, int f, int n)
{
KEYTAB *ktp;
int status, ww;
ktp = (Pmaster) ? &keytab[0] : &pkeytab[0];
while (ktp->k_fp != NULL) {
if (ktp->k_code == c) {
if(lastflag&CFFILL){
curwp->w_flag |= WFMODE;
if(Pmaster == NULL)
sgarbk = TRUE;
}
thisflag = 0;
status = (*ktp->k_fp)(f, n);
if((lastflag & CFFILL) && !(thisflag & CFFILL))
fdelete();
if((lastflag & CFFLBF) && !(thisflag & CFFLBF))
kdelete();
lastflag = thisflag;
/*
* Reset flag saying wrap should open a new line whenever
* we execute a command (as opposed to just typing in text).
* However, if that command leaves us in the same line on the
* screen, then don't reset.
*/
if(curwp->w_flag & (WFMOVE | WFHARD))
curbp->b_flag |= BFWRAPOPEN; /* wrap should open new line */
return (status);
}
++ktp;
}
if(lastflag & CFFILL) /* blat unusable fill data */
fdelete();
if(lastflag & CFFLBF)
kdelete();
if (VALID_KEY(c)) { /* Self inserting. */
if (n <= 0) { /* Fenceposts. */
lastflag = 0;
return (n<0 ? FALSE : TRUE);
}
thisflag = 0; /* For the future. */
/* do the appropriate insertion */
/* pico never does C mode, this is simple */
status = linsert(n, c);
/*
* Check to make sure we didn't go off of the screen
* with that character. Take into account tab expansion.
* If so wrap the line...
*/
if(curwp->w_bufp->b_mode & MDWRAP){
int j, wid;
wid = 0;
for(j = 0; j < llength(curwp->w_dotp); j++)
if(ucs4_isspace(lgetc(curwp->w_dotp, j).c)){
if(lgetc(curwp->w_dotp, j).c == TAB){
++wid;
while(wid & 0x07)
++wid;
}
else
++wid;
}
else{
ww = wcellwidth((UCS) lgetc(curwp->w_dotp, j).c);
wid += (ww >= 0 ? ww : 1);
if(wid > fillcol){
wrapword();
break;
}
}
}
lastflag = thisflag;
return (status);
}
unknown_command(c);
lastflag = 0; /* Fake last flags. */
return (FALSE);
}
/* ARGSUSED */
int
upperword(int f, int n)
{
int c, s;
RSIZE size;
if ((s = checkdirty(curbp)) != TRUE)
return (s);
if (curbp->b_flag & BFREADONLY) {
ewprintf("Buffer is read-only");
return (FALSE);
}
if (n < 0)
return (FALSE);
while (n--) {
while (inword() == FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
return (TRUE);
}
size = countfword();
undo_add_change(curwp->w_dotp, curwp->w_doto, size);
while (inword() != FALSE) {
c = lgetc(curwp->w_dotp, curwp->w_doto);
#ifndef MRUBY
if (ISLOWER(c) != FALSE) {
c = TOUPPER(c);
#else
if (MG_ISLOWER(c) != FALSE) {
c = MG_TOUPPER(c);
#endif /* !MRUBY */
lputc(curwp->w_dotp, curwp->w_doto, c);
lchange(WFFULL);
}
if (forwchar(FFRAND, 1) == FALSE)
return (TRUE);
}
}
return (TRUE);
}
/*
* Move the cursor forward by the specified number of words. As you move
* convert characters to lower case.
*/
/* ARGSUSED */
int
lowerword(int f, int n)
{
int c, s;
RSIZE size;
if ((s = checkdirty(curbp)) != TRUE)
return (s);
if (curbp->b_flag & BFREADONLY) {
ewprintf("Buffer is read-only");
return (FALSE);
}
if (n < 0)
return (FALSE);
while (n--) {
while (inword() == FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
return (TRUE);
}
size = countfword();
undo_add_change(curwp->w_dotp, curwp->w_doto, size);
while (inword() != FALSE) {
c = lgetc(curwp->w_dotp, curwp->w_doto);
#ifndef MRUBY
if (ISUPPER(c) != FALSE) {
c = TOLOWER(c);
#else
if (MG_ISUPPER(c) != FALSE) {
c = MG_TOLOWER(c);
#endif /* !MRUBY */
lputc(curwp->w_dotp, curwp->w_doto, c);
lchange(WFFULL);
}
if (forwchar(FFRAND, 1) == FALSE)
return (TRUE);
}
}
return (TRUE);
}
/*
* Move the cursor forward by the specified number of words. As you move
* convert the first character of the word to upper case, and subsequent
* characters to lower case. Error if you try to move past the end of the
* buffer.
*/
/* ARGSUSED */
int
capword(int f, int n)
{
int c, s;
RSIZE size;
if ((s = checkdirty(curbp)) != TRUE)
return (s);
if (curbp->b_flag & BFREADONLY) {
ewprintf("Buffer is read-only");
return (FALSE);
}
if (n < 0)
return (FALSE);
while (n--) {
while (inword() == FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
return (TRUE);
}
size = countfword();
undo_add_change(curwp->w_dotp, curwp->w_doto, size);
if (inword() != FALSE) {
c = lgetc(curwp->w_dotp, curwp->w_doto);
#ifndef MRUBY
if (ISLOWER(c) != FALSE) {
c = TOUPPER(c);
#else
if (MG_ISLOWER(c) != FALSE) {
c = MG_TOUPPER(c);
#endif /* !MRUBY */
lputc(curwp->w_dotp, curwp->w_doto, c);
lchange(WFFULL);
}
if (forwchar(FFRAND, 1) == FALSE)
return (TRUE);
while (inword() != FALSE) {
c = lgetc(curwp->w_dotp, curwp->w_doto);
#ifndef MRUBY
if (ISUPPER(c) != FALSE) {
c = TOLOWER(c);
#else
if (MG_ISUPPER(c) != FALSE) {
c = MG_TOLOWER(c);
#endif /* !MRUBY */
lputc(curwp->w_dotp, curwp->w_doto, c);
lchange(WFFULL);
}
if (forwchar(FFRAND, 1) == FALSE)
return (TRUE);
}
}
}
return (TRUE);
}
/*
* Count characters in word, from current position
*/
RSIZE
countfword()
{
RSIZE size;
struct line *dotp;
int doto;
dotp = curwp->w_dotp;
doto = curwp->w_doto;
size = 0;
while (inword() != FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
/* hit the end of the buffer */
goto out;
++size;
}
out:
curwp->w_dotp = dotp;
curwp->w_doto = doto;
return (size);
}
/*
* Kill forward by "n" words.
*/
/* ARGSUSED */
int
delfword(int f, int n)
{
RSIZE size;
struct line *dotp;
int doto;
int s;
if ((s = checkdirty(curbp)) != TRUE)
return (s);
if (curbp->b_flag & BFREADONLY) {
ewprintf("Buffer is read-only");
return (FALSE);
}
if (n < 0)
return (FALSE);
/* purge kill buffer */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
dotp = curwp->w_dotp;
doto = curwp->w_doto;
size = 0;
while (n--) {
while (inword() == FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
/* hit the end of the buffer */
goto out;
++size;
}
while (inword() != FALSE) {
if (forwchar(FFRAND, 1) == FALSE)
/* hit the end of the buffer */
goto out;
++size;
}
}
out:
curwp->w_dotp = dotp;
curwp->w_doto = doto;
return (ldelete(size, KFORW));
}
/*
* Kill backwards by "n" words. The rules for success and failure are now
* different, to prevent strange behavior at the start of the buffer. The
* command only fails if something goes wrong with the actual delete of the
* characters. It is successful even if no characters are deleted, or if you
* say delete 5 words, and there are only 4 words left. I considered making
* the first call to "backchar" special, but decided that that would just be
* weird. Normally this is bound to "M-Rubout" and to "M-Backspace".
*/
/* ARGSUSED */
int
delbword(int f, int n)
{
RSIZE size;
int s;
if ((s = checkdirty(curbp)) != TRUE)
return (s);
if (curbp->b_flag & BFREADONLY) {
ewprintf("Buffer is read-only");
return (FALSE);
}
if (n < 0)
return (FALSE);
/* purge kill buffer */
if ((lastflag & CFKILL) == 0)
kdelete();
thisflag |= CFKILL;
if (backchar(FFRAND, 1) == FALSE)
/* hit buffer start */
return (TRUE);
/* one deleted */
size = 1;
while (n--) {
while (inword() == FALSE) {
if (backchar(FFRAND, 1) == FALSE)
/* hit buffer start */
goto out;
++size;
}
while (inword() != FALSE) {
if (backchar(FFRAND, 1) == FALSE)
/* hit buffer start */
goto out;
++size;
}
}
if (forwchar(FFRAND, 1) == FALSE)
return (FALSE);
/* undo assumed delete */
--size;
out:
return (ldelete(size, KBACK));
}