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1 To: vim-dev@vim.org
2 Subject: Patch 7.2.366
3 Fcc: outbox
4 From: Bram Moolenaar <Bram@moolenaar.net>
5 Mime-Version: 1.0
6 Content-Type: text/plain; charset=UTF-8
7 Content-Transfer-Encoding: 8bit
8 ------------
9
10 Patch 7.2.366
11 Problem:    CTRL-B doesn't go back to the first line of the buffer.
12 Solution:   Avoid an overflow when adding MAXCOL.
13 Files:      src/move.c
14
15
16 *** ../vim-7.2.365/src/move.c   2010-02-03 17:42:59.000000000 +0100
17 --- src/move.c  2010-02-17 17:49:34.000000000 +0100
18 ***************
19 *** 1610,1616 ****
20    * Add one line above "lp->lnum".  This can be a filler line, a closed fold or
21    * a (wrapped) text line.  Uses and sets "lp->fill".
22    * Returns the height of the added line in "lp->height".
23 !  * Lines above the first one are incredibly high.
24    */
25       static void
26   topline_back(lp)
27 --- 1610,1616 ----
28    * Add one line above "lp->lnum".  This can be a filler line, a closed fold or
29    * a (wrapped) text line.  Uses and sets "lp->fill".
30    * Returns the height of the added line in "lp->height".
31 !  * Lines above the first one are incredibly high: MAXCOL.
32    */
33       static void
34   topline_back(lp)
35 ***************
36 *** 1942,1948 ****
37         {
38             loff.lnum = curwin->w_topline;
39             topline_back(&loff);
40 !           if (used + loff.height > curwin->w_height)
41                 break;
42             used += loff.height;
43   #ifdef FEAT_DIFF
44 --- 1942,1948 ----
45         {
46             loff.lnum = curwin->w_topline;
47             topline_back(&loff);
48 !           if (loff.height == MAXCOL || used + loff.height > curwin->w_height)
49                 break;
50             used += loff.height;
51   #ifdef FEAT_DIFF
52 ***************
53 *** 2021,2027 ****
54   
55         /* Add one line above */
56         topline_back(&loff);
57 !       used += loff.height;
58         if (used > curwin->w_height)
59             break;
60         if (loff.lnum >= curwin->w_botline
61 --- 2021,2030 ----
62   
63         /* Add one line above */
64         topline_back(&loff);
65 !       if (loff.height == MAXCOL)
66 !           used = MAXCOL;
67 !       else
68 !           used += loff.height;
69         if (used > curwin->w_height)
70             break;
71         if (loff.lnum >= curwin->w_botline
72 ***************
73 *** 2175,2181 ****
74         if (below > above)          /* add a line above the cursor */
75         {
76             topline_back(&loff);
77 !           used += loff.height;
78             if (used > curwin->w_height)
79                 break;
80             above += loff.height;
81 --- 2178,2187 ----
82         if (below > above)          /* add a line above the cursor */
83         {
84             topline_back(&loff);
85 !           if (loff.height == MAXCOL)
86 !               used = MAXCOL;
87 !           else
88 !               used += loff.height;
89             if (used > curwin->w_height)
90                 break;
91             above += loff.height;
92 ***************
93 *** 2472,2480 ****
94             while (n <= curwin->w_height && loff.lnum >= 1)
95             {
96                 topline_back(&loff);
97 !               n += loff.height;
98             }
99 !           if (n <= curwin->w_height)              /* at begin of file */
100             {
101                 curwin->w_topline = 1;
102   #ifdef FEAT_DIFF
103 --- 2478,2489 ----
104             while (n <= curwin->w_height && loff.lnum >= 1)
105             {
106                 topline_back(&loff);
107 !               if (loff.height == MAXCOL)
108 !                   n = MAXCOL;
109 !               else
110 !                   n += loff.height;
111             }
112 !           if (loff.lnum < 1)                  /* at begin of file */
113             {
114                 curwin->w_topline = 1;
115   #ifdef FEAT_DIFF
116 *** ../vim-7.2.365/src/version.c        2010-02-17 17:34:38.000000000 +0100
117 --- src/version.c       2010-02-17 18:13:22.000000000 +0100
118 ***************
119 *** 683,684 ****
120 --- 683,686 ----
121   {   /* Add new patch number below this line */
122 + /**/
123 +     366,
124   /**/
125
126 -- 
127 hundred-and-one symptoms of being an internet addict:
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130
131  /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
132 ///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
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