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win_line: Fix crash with 'rightleft' in :terminal #11460

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fixes #11438

Backtrace:

    0  schar_from_ascii ( p=0x801cc9e112c3 <error: Cannot access memory at address 0x801cc9e112c3>, c=32 ' ') at ../src/nvim/screen.c:5263
    1  0x00007f31460eccc5 in win_line (wp=wp@entry=0x7fffc9df6230, lnum=lnum@entry=11, startrow=startrow@entry=10, endrow=41, nochange=false, number_only=number_only@entry=false) at ../src/nvim/screen.c:4025
    2  0x00007f31460eed8e in win_update (wp=wp@entry=0x7fffc9df6230) at ../src/nvim/screen.c:1403
    3  0x00007f31460f011f in update_screen (type=<optimized out>) at ../src/nvim/screen.c:502
    4  0x00007f3146138ef4 in normal_redraw (s=s@entry=0x7fffd0a5f700) at ../src/nvim/normal.c:1247
    5  0x00007f314613b159 in normal_check (state=0x7fffd0a5f700) at ../src/nvim/normal.c:1324
    6  0x00007f31460accfe in state_enter (s=0x7fffd0a5f700) at ../src/nvim/state.c:28
    7  0x00007f3146143099 in normal_enter (cmdwin=<optimized out>, noexmode=<optimized out>) at ../src/nvim/normal.c:463
    8  0x00007f314618b541 in main (argc=<optimized out>, argv=<optimized out>) at ../src/nvim/main.c:580
This commit is contained in:
erw7
2019-11-29 13:09:03 +09:00
committed by Justin M. Keyes
parent ad17ef118a
commit 1bb7ea189e
2 changed files with 23 additions and 3 deletions
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9
src/nvim/screen.c
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@@ -4021,10 +4021,13 @@ win_line (
if (wp->w_buffer->terminal) {
// terminal buffers may need to highlight beyond the end of the
// logical line
while (col < grid->Columns) {
int n = wp->w_p_rl ? -1 : 1;
while (col >= 0 && col < grid->Columns) {
schar_from_ascii(linebuf_char[off], ' ');
linebuf_attr[off++] = term_attrs[vcol++];
col++;
linebuf_attr[off] = term_attrs[vcol];
off += n;
vcol += n;
col += n;
}
}
grid_put_linebuf(grid, row, 0, col, grid->Columns, wp->w_p_rl, wp,