altagos.dev
A pretty printer for zig
zig
customizable color theme
+4
-1
example/main.zig
+4
-1
example/main.zig
···
44
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print("Boolean false - {f}\n", .{pretty(false)});
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print(
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"Boolean true always with type name - {f}\n",
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-
.{Pretty(bool, .{ .always_show_type_names = true, .type_value_sep = ": " }).init(true)},
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.{Pretty(bool, .{
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.always_show_type_names = true,
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.theme = .{ .type_value_sep = ": " },
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}).init(true)},
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);
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print("\nUnsigned Integers\n", .{});
+76
-30
pretty.zig
+76
-30
pretty.zig
···
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show_type_names: bool = true,
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always_show_type_names: bool = false,
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theme: Theme = .{},
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};
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+
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pub const Theme = struct {
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pub const Colors = enum {
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dim,
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field,
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value,
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@"error",
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type,
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null,
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true,
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false,
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};
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+
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field_name_type_sep: []const u8 = ": ",
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type_value_sep: []const u8 = " = ",
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+
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color_dim: Io.Terminal.Color = .dim,
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color_field: Io.Terminal.Color = .green,
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color_value: Io.Terminal.Color = .blue,
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color_error: Io.Terminal.Color = .red,
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color_type: Io.Terminal.Color = .bright_blue,
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color_null: Io.Terminal.Color = .cyan,
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color_true: Io.Terminal.Color = .bright_green,
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color_false: Io.Terminal.Color = .bright_red,
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+
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pub fn getColor(this: Theme, option: Colors) Io.Terminal.Color {
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return switch (option) {
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// .dim => this.color_dim,
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// .field => this.color_field,
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// .value => this.color_value,
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// .@"error" => this.color_error,
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// .type => this.color_type,
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// .null => this.color_null,
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// .true => this.color_true,
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// .false => this.color_false,
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inline else => |opt| @field(this, "color_" ++ @tagName(opt)),
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};
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}
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};
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const default_options: Options = if (@hasDecl(root, "pretty_options")) root.pretty_options else .{};
···
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return this.out.writeAll(text);
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}
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-
pub inline fn setColor(this: RuntimeContext, color: Io.Terminal.Color) void {
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+
pub inline fn setColor(
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this: RuntimeContext,
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comptime ctx: ComptimeContext,
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color: Theme.Colors,
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+
) void {
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this.tty.setColor(ctx.options.theme.getColor(color)) catch {};
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}
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+
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pub inline fn setColorRaw(this: RuntimeContext, color: Io.Terminal.Color) void {
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this.tty.setColor(color) catch {};
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}
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···
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if (opts.dont_skip_type_name) try printType(T, cctx, rctx);
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return switch (info) {
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.bool => formatBool(rctx, value),
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.null => formatNull(rctx),
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.type => formatType(rctx, value),
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.bool => formatBool(cctx, rctx, value),
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.null => formatNull(cctx, rctx),
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.type => formatType(cctx, rctx, value),
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// comptime types
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.comptime_int,
···
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// enum types
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.@"enum",
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.enum_literal,
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=> formatValue(rctx, value),
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=> formatValue(cctx, rctx, value),
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.optional => |opt| formatOptional(opt.child, cctx, rctx, value),
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.@"struct" => |st| formatStruct(T, st, cctx, rctx, value),
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else => {
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rctx.setColor(.red);
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rctx.setColor(cctx, .@"error");
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try rctx.print("Unimplemented! ({} = {any})", .{ info, value });
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rctx.resetColor();
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},
···
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};
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if ((cctx.depth != 0 or cctx.options.always_show_type_names) and !excluded) {
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rctx.setColor(.dim);
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rctx.setColor(cctx, .dim);
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if (cctx.options.show_type_names) {
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try rctx.write(@typeName(T));
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}
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try rctx.write(cctx.options.type_value_sep);
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try rctx.write(cctx.options.theme.type_value_sep);
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rctx.resetColor();
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}
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}
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inline fn formatBool(ctx: RuntimeContext, value: bool) !void {
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ctx.setColor(if (value) .bright_green else .bright_red);
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try ctx.print("{}", .{value});
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ctx.resetColor();
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inline fn formatBool(comptime cctx: ComptimeContext, rctx: RuntimeContext, value: bool) !void {
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rctx.setColor(cctx, if (value) .true else .false);
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try rctx.print("{}", .{value});
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rctx.resetColor();
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}
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-
inline fn formatNull(ctx: RuntimeContext) !void {
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ctx.setColor(.cyan);
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try ctx.write("null");
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-
ctx.resetColor();
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+
inline fn formatNull(comptime cctx: ComptimeContext, rctx: RuntimeContext) !void {
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rctx.setColor(cctx, .null);
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try rctx.write("null");
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rctx.resetColor();
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}
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inline fn formatOptional(
···
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return if (value) |val|
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innerFmt(T, cctx, rctx, val, .{ .dont_skip_type_name = false })
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else
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formatNull(rctx);
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+
formatNull(cctx, rctx);
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}
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inline fn formatStruct(
···
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};
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if (cctx.options.inline_structs) {
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rctx.setColor(.dim);
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+
rctx.setColor(cctx, .dim);
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try rctx.write(".{ ");
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rctx.resetColor();
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}
···
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indent(next_cctx, rctx);
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if (index != 0 and cctx.options.inline_structs) try rctx.write(", ");
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-
rctx.setColor(.green);
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-
try rctx.write("." ++ field.name ++ cctx.options.field_name_type_sep);
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rctx.setColor(cctx, .field);
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try rctx.write("." ++ field.name ++ cctx.options.theme.field_name_type_sep);
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rctx.resetColor();
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try innerFmt(field.type, next_cctx, rctx, @field(value, field.name), .{});
···
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}
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if (cctx.options.inline_structs) {
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-
rctx.setColor(.dim);
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+
rctx.setColor(cctx, .dim);
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try rctx.write(" }");
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rctx.resetColor();
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}
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}
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-
inline fn formatType(ctx: RuntimeContext, value: type) !void {
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-
ctx.setColor(.bright_blue);
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ctx.setColor(.bold);
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-
try ctx.write(@typeName(value));
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-
ctx.resetColor();
276
+
inline fn formatType(comptime cctx: ComptimeContext, rctx: RuntimeContext, value: type) !void {
277
+
rctx.setColor(cctx, .type);
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rctx.setColorRaw(.bold);
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try rctx.write(@typeName(value));
280
+
rctx.resetColor();
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281
}
236
282
237
-
inline fn formatValue(ctx: RuntimeContext, value: anytype) !void {
238
-
ctx.setColor(.blue);
239
-
try ctx.print("{}", .{value});
240
-
ctx.resetColor();
283
+
inline fn formatValue(comptime cctx: ComptimeContext, rctx: RuntimeContext, value: anytype) !void {
284
+
rctx.setColor(cctx, .value);
285
+
try rctx.print("{}", .{value});
286
+
rctx.resetColor();
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287
}
242
288
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inline fn indent(comptime cctx: ComptimeContext, rctx: RuntimeContext) void {