67 lines
2.1 KiB
Zig
67 lines
2.1 KiB
Zig
//! Cell type containing content and formatting for each character in the terminal screen.
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// TODO embrace `zg` dependency more due to utf-8 encoding
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cp: u21 = ' ',
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style: Style = .{ .emphasis = &.{} },
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pub fn eql(this: Cell, other: Cell) bool {
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return this.cp == other.cp and this.style.eql(other.style);
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}
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pub fn reset(this: *Cell) void {
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this.style = .{ .emphasis = &.{} };
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this.cp = ' ';
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}
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pub fn value(this: Cell, writer: anytype) !void {
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try this.style.value(writer, this.cp);
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}
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const std = @import("std");
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const Style = @import("style.zig");
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const Cell = @This();
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test "ascii styled text" {
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const cells: [4]Cell = .{
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.{ .cp = 'Y', .style = .{ .fg = .green, .bg = .grey, .emphasis = &.{} } },
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.{ .cp = 'v', .style = .{ .emphasis = &.{ .bold, .underline } } },
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.{ .cp = 'e', .style = .{ .emphasis = &.{.italic} } },
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.{ .cp = 's', .style = .{ .fg = .light_green, .bg = .black, .emphasis = &.{.underline} } },
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};
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var string = std.ArrayList(u8).init(std.testing.allocator);
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defer string.deinit();
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const writer = string.writer();
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for (cells) |cell| {
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try cell.value(writer);
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}
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try std.testing.expectEqualSlices(
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u8,
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"\x1b[38;5;10;48;5;8;59mY\x1b[0m\x1b[39;49;59;1;4mv\x1b[0m\x1b[39;49;59;3me\x1b[0m\x1b[38;5;2;48;5;16;59;4ms\x1b[0m",
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string.items,
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);
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}
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test "utf-8 styled text" {
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const cells: [4]Cell = .{
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.{ .cp = '╭', .style = .{ .fg = .green, .bg = .grey, .emphasis = &.{} } },
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.{ .cp = '─', .style = .{ .emphasis = &.{} } },
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.{ .cp = '┄', .style = .{ .emphasis = &.{} } },
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.{ .cp = '┘', .style = .{ .fg = .light_green, .bg = .black, .emphasis = &.{.underline} } },
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};
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var string = std.ArrayList(u8).init(std.testing.allocator);
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defer string.deinit();
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const writer = string.writer();
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for (cells) |cell| {
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try cell.value(writer);
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}
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try std.testing.expectEqualSlices(
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u8,
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"\x1b[38;5;10;48;5;8;59m╭\x1b[0m\x1b[39;49;59m─\x1b[0m\x1b[39;49;59m┄\x1b[0m\x1b[38;5;2;48;5;16;59;4m┘\x1b[0m",
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string.items,
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);
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}
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