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fix some bugs

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This commit is contained in:
Mitchell Hashimoto
2022-05-21 16:36:19 -07:00
parent 2a657d1ec9
commit 656488bff9
1 changed files with 9 additions and 5 deletions
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14
src/terminal/Screen.zig
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@ -88,7 +88,7 @@ pub fn getCell(self: Screen, row: usize, col: usize) *Cell {
assert(row < self.rows);
assert(col < self.cols);
const row_idx = self.rowIndex(row);
return self.storage[row_idx + col];
return &self.storage[row_idx + col];
}
/// Returns the index for the given row (0-indexed) into the underlying
@ -125,6 +125,7 @@ pub fn copyRow(self: *Screen, dst: usize, src: usize) void {
/// Turns the screen into a string.
pub fn testString(self: Screen, alloc: Allocator) ![]const u8 {
const buf = try alloc.alloc(u8, self.storage.len + self.rows);
var i: usize = 0;
var y: usize = 0;
var rows = self.rowIterator();
@ -137,13 +138,16 @@ pub fn testString(self: Screen, alloc: Allocator) ![]const u8 {
}
for (row) |cell| {
// Turn NUL into space.
const char = if (cell.char == 0) 0x20 else cell.char;
i += try std.unicode.utf8Encode(@intCast(u21, char), buf[i..]);
// TODO: handle character after null
if (cell.char > 0) {
i += try std.unicode.utf8Encode(@intCast(u21, cell.char), buf[i..]);
}
}
}
return buf[0..i];
// Never render the final newline
const str = std.mem.trimRight(u8, buf[0..i], "\n");
return try alloc.realloc(buf, str.len);
}
/// Writes a basic string into the screen for testing. Newlines (\n) separate