/*
* Set fill column to n.
*/
int
setfillcol (int f, int n, int k)
{
extern int getcolpos ();
fillcol = ((f == FALSE) ? getcolpos () : n);
if (kbdmop == NULL)
eprintf ("[Fill column set to %d]", fillcol);
return (TRUE);
}
/*
* Set the current goal column, which is saved in the external variable
* "curgoal", to the current cursor column. The column is never off
* the edge of the screen; it's more like display then show position.
*/
void
setgoal(void)
{
curgoal = getcolpos(curwp); /* Get the position. */
/* we can now display past end of display, don't chop! */
}
/*
* Fill the current paragraph according to the current fill column.
*/
int
fillpara (int f, int n, int k)
{
register int c; /* current char durring scan */
register int wordlen; /* length of current word */
register int clength; /* position on line during fill */
register int eopflag; /* Are we at the End-Of-Paragraph? */
int firstflag; /* first word? (needs no space) */
int newlength; /* tentative new line length */
int eolflag; /* was at end of line */
LINE *eopline; /* pointer to line just past EOP */
char wbuf[MAXWORD]; /* buffer for current word */
/* Record the pointer to the line just past the
* end of the paragraph.
*/
gotoeop (FALSE, 1, KRANDOM);
eopline = curwp->w_dot.p;
if (lforw (eopline) == curbp->b_linep)
eopline = curbp->b_linep;
/* Move to the begining of the paragraph.
*/
gotobop (FALSE, 1, KRANDOM);
/* Skip to the start of the first word in the paragraph,
* and set our current column position.
*/
while (!inword ())
if (forwchar (FALSE, 1, KRANDOM) == FALSE)
break;
clength = getcolpos () - 1;
wordlen = 0;
/* scan through lines, filling words
*/
firstflag = TRUE;
eopflag = FALSE;
while (!eopflag)
{
/* get the next character in the paragraph
*/
if ((eolflag = (curwp->w_dot.o == llength (curwp->w_dot.p))) == TRUE)
{
c = ' ';
if (lforw (curwp->w_dot.p) == eopline)
eopflag = TRUE;
}
else
c = lgetc (curwp->w_dot.p, curwp->w_dot.o);
/* and then delete it
*/
if (ldelete (1, FALSE) == FALSE)
return (FALSE);
/* if not a separator, just add it in
*/
if (c != ' ' && c != '\t')
{
if (wordlen < MAXWORD - 1)
wbuf[wordlen++] = c;
else
{
/* You lose chars beyond MAXWORD if the word
* is to long. I'm to lazy to fix it now; it
* just silently truncated the word before, so
* I get to feel smug.
*/
eprintf ("Word too long!");
}
}
else if (wordlen)
{
/* calculate tenatitive new length with word added
*/
newlength = clength + 1 + wordlen;
/* if at end of line or at doublespace and previous
* character was one of '.','?','!' doublespace here.
*/
if ((eolflag || curwp->w_dot.o == llength (curwp->w_dot.p)
|| (c = lgetc (curwp->w_dot.p, curwp->w_dot.o)) == ' '
|| c == '\t')
&& ISEOSP (wbuf[wordlen - 1]) && wordlen < MAXWORD - 1)
wbuf[wordlen++] = ' ';
/* at a word break with a word waiting
*/
if (newlength <= fillcol)
{
/* add word to current line */
if (!firstflag)
{
linsert (1, ' ', NULLPTR);
++clength;
}
firstflag = FALSE;
}
else
{
if (curwp->w_dot.o > 0 &&
lgetc (curwp->w_dot.p, curwp->w_dot.o - 1) == ' ')
{
curwp->w_dot.o -= 1;
ldelete (1, FALSE);
}
/* start a new line */
lnewline ();
clength = 0;
}
/* and add the word in in either case */
linsert (wordlen, 0, wbuf);
clength += wordlen;
wordlen = 0;
}
}
/* and add a last newline for the end of our new paragraph */
lnewline ();
/* we realy should wind up where we started, (which is hard to keep
* track of) but I think the end of the last line is better than the
* begining of the blank line.
*/
backchar (FALSE, 1, KRANDOM);
return (TRUE);
}
