| version 1.32, 2012/05/30 06:13:32 |
version 1.33, 2012/05/31 10:55:53 |
|
|
| int |
int |
| backpage(int f, int n) |
backpage(int f, int n) |
| { |
{ |
| struct line *lp; |
struct line *lp, *lp2; |
| |
|
| if (!(f & FFARG)) { |
if (!(f & FFARG)) { |
| n = curwp->w_ntrows - 2; /* Default scroll. */ |
n = curwp->w_ntrows - 2; /* Default scroll. */ |
|
|
| n = 1; /* window is tiny. */ |
n = 1; /* window is tiny. */ |
| } else if (n < 0) |
} else if (n < 0) |
| return (forwpage(f | FFRAND, -n)); |
return (forwpage(f | FFRAND, -n)); |
| lp = curwp->w_linep; |
|
| |
lp = lp2 = curwp->w_linep; |
| |
|
| while (n-- && lback(lp) != curbp->b_headp) { |
while (n-- && lback(lp) != curbp->b_headp) { |
| lp = lback(lp); |
lp = lback(lp); |
| } |
} |
| curwp->w_linep = lp; |
curwp->w_linep = lp; |
| curwp->w_rflag |= WFFULL; |
curwp->w_rflag |= WFFULL; |
| |
|
| /* if in current window, don't move dot */ |
/* if in current window, don't move dot */ |
| for (n = curwp->w_ntrows; n-- && lp != curbp->b_headp; lp = lforw(lp)) |
for (n = curwp->w_ntrows; n-- && lp != curbp->b_headp; lp = lforw(lp)) |
| if (lp == curwp->w_dotp) |
if (lp == curwp->w_dotp) |
| return (TRUE); |
return (TRUE); |
| |
|
| |
lp2 = lforw(lp2); |
| |
|
| /* Move the dot the slow way, for line nos */ |
/* Move the dot the slow way, for line nos */ |
| while (curwp->w_dotp != curwp->w_linep) { |
while (curwp->w_dotp != lp2) { |
| curwp->w_dotp = lback(curwp->w_dotp); |
curwp->w_dotp = lback(curwp->w_dotp); |
| curwp->w_dotline--; |
curwp->w_dotline--; |
| } |
} |
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