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terminal: page.cloneFrom graphemes

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This commit is contained in:
Mitchell Hashimoto
2024-03-11 21:10:28 -07:00
parent 49e8acbcd2
commit 3191081ea6
1 changed files with 63 additions and 0 deletions
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63
src/terminal/page.zig
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@ -259,6 +259,7 @@ pub const Page = struct {
for (cells, other_cells) |*dst_cell, *src_cell| {
dst_cell.* = src_cell.*;
if (src_cell.hasGrapheme()) {
dst_cell.content_tag = .codepoint; // required for appendGrapheme
const cps = other.lookupGrapheme(src_cell).?;
for (cps) |cp| try self.appendGrapheme(dst_row, dst_cell, cp);
}
@ -1161,3 +1162,65 @@ test "Page cloneFrom partial" {
try testing.expectEqual(@as(u21, 0), rac.cell.content.codepoint);
}
}
test "Page cloneFrom graphemes" {
var page = try Page.init(.{
.cols = 10,
.rows = 10,
.styles = 8,
});
defer page.deinit();
// Write
for (0..page.capacity.rows) |y| {
const rac = page.getRowAndCell(1, y);
rac.cell.* = .{
.content_tag = .codepoint,
.content = .{ .codepoint = @intCast(y + 1) },
};
try page.appendGrapheme(rac.row, rac.cell, 0x0A);
}
// Clone
var page2 = try Page.init(.{
.cols = 10,
.rows = 10,
.styles = 8,
});
defer page2.deinit();
try page2.cloneFrom(&page, 0, page.size.rows);
// Read it again
for (0..page2.capacity.rows) |y| {
const rac = page2.getRowAndCell(1, y);
try testing.expectEqual(@as(u21, @intCast(y + 1)), rac.cell.content.codepoint);
try testing.expect(rac.row.grapheme);
try testing.expect(rac.cell.hasGrapheme());
try testing.expectEqualSlices(u21, &.{0x0A}, page2.lookupGrapheme(rac.cell).?);
}
// Write again
for (0..page.capacity.rows) |y| {
const rac = page.getRowAndCell(1, y);
page.clearGrapheme(rac.row, rac.cell);
rac.cell.* = .{
.content_tag = .codepoint,
.content = .{ .codepoint = 0 },
};
}
// Read it again, should be unchanged
for (0..page2.capacity.rows) |y| {
const rac = page2.getRowAndCell(1, y);
try testing.expectEqual(@as(u21, @intCast(y + 1)), rac.cell.content.codepoint);
try testing.expect(rac.row.grapheme);
try testing.expect(rac.cell.hasGrapheme());
try testing.expectEqualSlices(u21, &.{0x0A}, page2.lookupGrapheme(rac.cell).?);
}
// Read the original
for (0..page.capacity.rows) |y| {
const rac = page.getRowAndCell(1, y);
try testing.expectEqual(@as(u21, 0), rac.cell.content.codepoint);
}
}