projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 7c1c9e39 | 1 | #ifndef lint |
| 84ad208b | 2 | static char *sccsid = "@(#)wwadd.c 3.6 83/11/23"; |
| 7c1c9e39 EW |
3 | #endif |
| 4 | ||
| 5 | #include "ww.h" | |
| 6 | ||
| 7 | /* | |
| 84ad208b | 8 | * Stick w1 behind w2. |
| 7c1c9e39 EW |
9 | */ |
| 10 | wwadd(w1, w2) | |
| 84ad208b EW |
11 | register struct ww *w1; |
| 12 | struct ww *w2; | |
| 7c1c9e39 | 13 | { |
| 84ad208b EW |
14 | register struct ww *w; |
| 15 | register i; | |
| 19f9784c | 16 | |
| 7c1c9e39 EW |
17 | w1->ww_order = w2->ww_order + 1; |
| 18 | w1->ww_back = w2; | |
| 19 | w1->ww_forw = w2->ww_forw; | |
| 20 | w2->ww_forw->ww_back = w1; | |
| 21 | w2->ww_forw = w1; | |
| 19f9784c | 22 | |
| 84ad208b EW |
23 | for (w = w1->ww_forw; w != &wwhead; w = w->ww_forw) |
| 24 | w->ww_order++; | |
| 25 | for (i = w1->ww_i.t; i < w1->ww_i.b; i++) { | |
| 26 | register j = w1->ww_i.l; | |
| 27 | register char *smap = &wwsmap[i][j]; | |
| 28 | register char *win = &w1->ww_win[i][j]; | |
| 29 | int nvis = 0; | |
| 7c1c9e39 | 30 | |
| 84ad208b EW |
31 | for (j = w1->ww_i.l; j < w1->ww_i.r; j++) { |
| 32 | w = wwindex[*smap]; | |
| 33 | if (w1->ww_order > w->ww_order) { | |
| 34 | win++; | |
| 35 | smap++; | |
| 36 | continue; | |
| 37 | } | |
| 38 | if (*win & WWM_GLS) { | |
| 39 | win++; | |
| 40 | smap++; | |
| 41 | continue; | |
| 7c1c9e39 | 42 | } |
| 84ad208b EW |
43 | if (w != &wwnobody && w->ww_win[i][j] == 0) |
| 44 | w->ww_nvis[i]--; | |
| 45 | *smap++ = w1->ww_index; | |
| 46 | if (*win == 0) | |
| 47 | nvis++; | |
| 48 | wwns[i][j].c_w = w1->ww_buf[i][j].c_w ^ | |
| 49 | *win++ << WWC_MSHIFT; | |
| 50 | wwtouched[i] = 1; | |
| 7c1c9e39 | 51 | } |
| 84ad208b | 52 | w1->ww_nvis[i] = nvis; |
| 7c1c9e39 EW |
53 | } |
| 54 | } |