Commit | Line | Data |
---|---|---|
bbb8329f | 1 | #ifndef lint |
3130283e | 2 | static char *sccsid = "@(#)wwupdate.c 3.8 83/09/15"; |
bbb8329f EW |
3 | #endif |
4 | ||
5 | #include "ww.h" | |
e908bfac | 6 | #include "tt.h" |
bbb8329f EW |
7 | |
8 | wwupdate() | |
9 | { | |
b7f39bc5 EW |
10 | int i; |
11 | register j; | |
12 | int c, x; | |
bbb8329f | 13 | register union ww_char *ns, *os; |
b7f39bc5 EW |
14 | register char *p, *q; |
15 | char m; | |
16 | char *touched; | |
861cd1ed | 17 | register didit; |
b7f39bc5 | 18 | char buf[512]; /* > wwncol */ |
5e785082 | 19 | union ww_char lastc; |
bbb8329f | 20 | |
861cd1ed | 21 | wwnupdate++; |
861cd1ed EW |
22 | for (i = 0, touched = wwtouched; i < wwnrow; i++, touched++) { |
23 | if (!*touched) | |
24 | continue; | |
25 | wwntouched++; | |
26 | *touched = 0; | |
b7f39bc5 | 27 | |
bbb8329f EW |
28 | ns = wwns[i]; |
29 | os = wwos[i]; | |
861cd1ed | 30 | didit = 0; |
b7f39bc5 EW |
31 | for (j = 0; j < wwncol;) { |
32 | for (; j++ < wwncol && ns++->c_w == os++->c_w;) | |
33 | ; | |
34 | if (j > wwncol) | |
35 | break; | |
36 | p = buf; | |
3130283e | 37 | m = ns[-1].c_m & tt.tt_availmodes; |
b7f39bc5 EW |
38 | c = j - 1; |
39 | os[-1] = ns[-1]; | |
40 | *p++ = ns[-1].c_c; | |
41 | x = 5; | |
42 | q = p; | |
3130283e | 43 | while (j < wwncol && (ns->c_m&tt.tt_availmodes) == m) { |
b7f39bc5 EW |
44 | *p++ = ns->c_c; |
45 | if (ns->c_w == os->c_w) { | |
46 | if (--x <= 0) | |
47 | break; | |
48 | os++; | |
49 | ns++; | |
50 | } else { | |
51 | x = 5; | |
52 | q = p; | |
5e785082 | 53 | lastc = *os; |
b7f39bc5 EW |
54 | *os++ = *ns++; |
55 | } | |
56 | j++; | |
bbb8329f | 57 | } |
3130283e EW |
58 | tt.tt_nmodes = m; |
59 | (*tt.tt_move)(i, c); | |
5e785082 EW |
60 | if (wwwrap |
61 | && i == wwnrow - 1 && q - buf + c == wwncol) { | |
3130283e EW |
62 | if (tt.tt_hasinsert) { |
63 | (*tt.tt_write)(buf + 1, q - buf - 1); | |
5e785082 | 64 | (*tt.tt_move)(i, c); |
3130283e EW |
65 | tt.tt_ninsert = 1; |
66 | (*tt.tt_write)(buf, 1); | |
67 | tt.tt_ninsert = 0; | |
5e785082 EW |
68 | } else { |
69 | os[-1] = lastc; | |
3130283e | 70 | (*tt.tt_write)(buf, q - buf - 1); |
5e785082 | 71 | } |
3130283e EW |
72 | } else |
73 | (*tt.tt_write)(buf, q - buf); | |
b7f39bc5 | 74 | didit++; |
bbb8329f | 75 | } |
861cd1ed EW |
76 | if (!didit) |
77 | wwnmiss++; | |
bbb8329f EW |
78 | } |
79 | } |