/* ARGSUSED */
int
yank(int f, int n)
{
struct line *lp;
int c, i, nline;
if (n < 0)
return (FALSE);
/* newline counting */
nline = 0;
undo_boundary_enable(FFRAND, 0);
while (n--) {
/* mark around last yank */
isetmark();
i = 0;
while ((c = kremove(i)) >= 0) {
if (c == '\n') {
if (newline(FFRAND, 1) == FALSE)
return (FALSE);
++nline;
} else {
if (linsert(1, c) == FALSE)
return (FALSE);
}
++i;
}
}
/* cosmetic adjustment */
lp = curwp->w_linep;
/* if offscreen insert */
if (curwp->w_dotp == lp) {
while (nline-- && lback(lp) != curbp->b_headp)
lp = lback(lp);
/* adjust framing */
curwp->w_linep = lp;
curwp->w_rflag |= WFFULL;
}
undo_boundary_enable(FFRAND, 1);
return (TRUE);
}
/* 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);
}
/*
* Attempt to indent current line according to KNF rules.
*/
int
cc_indent(int f, int n)
{
int pi, mi; /* Previous indents */
int ci, dci; /* current indent, don't care */
struct line *lp;
int ret;
if (n < 0)
return (FALSE);
undo_boundary_enable(FFRAND, 0);
if (cc_strip_trailp)
deltrailwhite(FFRAND, 1);
/*
* Search backwards for a non-blank, non-preprocessor,
* non-comment line
*/
lp = findnonblank(curwp->w_dotp);
pi = getindent(lp, &mi);
/* Strip leading space on current line */
delleadwhite(FFRAND, 1);
/* current indent is computed only to current position */
dci = getindent(curwp->w_dotp, &ci);
if (pi + ci < 0)
ret = indent(FFOTHARG, 0);
else
ret = indent(FFOTHARG, pi + ci);
undo_boundary_enable(FFRAND, 1);
return (ret);
}
/* ARGSUSED */
int
fillpara(int f, int n)
{
int c; /* current char during scan */
int wordlen; /* length of current word */
int clength; /* position on line during fill */
int i; /* index during word copy */
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 */
int retval; /* return value */
struct line *eopline; /* pointer to line just past EOP */
char wbuf[MAXWORD]; /* buffer for current word */
if (n == 0)
return (TRUE);
undo_boundary_enable(FFRAND, 0);
/* record the pointer to the line just past the EOP */
(void)gotoeop(FFRAND, 1);
if (curwp->w_doto != 0) {
/* paragraph ends at end of buffer */
(void)lnewline();
eopline = lforw(curwp->w_dotp);
} else
eopline = curwp->w_dotp;
/* and back top the beginning of the paragraph */
(void)gotobop(FFRAND, 1);
/* initialize various info */
while (inword() == 0 && forwchar(FFRAND, 1));
clength = curwp->w_doto;
wordlen = 0;
/* scan through lines, filling words */
firstflag = TRUE;
eopflag = FALSE;
while (!eopflag) {
/* get the next character in the paragraph */
if ((eolflag = (curwp->w_doto == llength(curwp->w_dotp)))) {
c = ' ';
if (lforw(curwp->w_dotp) == eopline)
eopflag = TRUE;
} else
c = lgetc(curwp->w_dotp, curwp->w_doto);
/* and then delete it */
if (ldelete((RSIZE) 1, KNONE) == FALSE && !eopflag) {
retval = FALSE;
goto cleanup;
}
/* 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 too long. I'm too lazy to fix it now; it
* just silently truncated the word before,
* so I get to feel smug.
*/
ewprintf("Word too long!");
}
} else if (wordlen) {
/* calculate tentative 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.
* behave the same way if a ')' is preceded by a
* [.?!] and followed by a doublespace.
*/
if (dblspace && (!eopflag && ((eolflag ||
curwp->w_doto == llength(curwp->w_dotp) ||
(c = lgetc(curwp->w_dotp, curwp->w_doto)) == ' '
|| c == '\t') && (ISEOSP(wbuf[wordlen - 1]) ||
(wbuf[wordlen - 1] == ')' && wordlen >= 2 &&
ISEOSP(wbuf[wordlen - 2])))) &&
wordlen < MAXWORD - 1))
wbuf[wordlen++] = ' ';
/* at a word break with a word waiting */
if (newlength <= fillcol) {
/* add word to current line */
if (!firstflag) {
(void)linsert(1, ' ');
++clength;
}
firstflag = FALSE;
} else {
if (curwp->w_doto > 0 &&
lgetc(curwp->w_dotp, curwp->w_doto - 1) == ' ') {
curwp->w_doto -= 1;
(void)ldelete((RSIZE) 1, KNONE);
}
/* start a new line */
(void)lnewline();
clength = 0;
}
/* and add the word in in either case */
for (i = 0; i < wordlen; i++) {
(void)linsert(1, wbuf[i]);
++clength;
}
wordlen = 0;
}
}
/* and add a last newline for the end of our new paragraph */
(void)lnewline();
/*
* We really 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
* beginning of the blank line.
*/
(void)backchar(FFRAND, 1);
retval = TRUE;
cleanup:
undo_boundary_enable(FFRAND, 1);
return (retval);
}
