altagos.dev
A pretty printer for zig
zig
improve options
+78
-52
+7
-5
example/main.zig
+7
-5
example/main.zig
···
9
9
10
10
pub const pretty_options = pretty_mod.Options{
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11
.skip_root_type_name = build_options.skip_root_type_name,
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-
.indent_width = build_options.indent_width,
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+
.theme = .{
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+
.indent_width = build_options.indent_width,
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+
},
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};
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const employees = @embedFile("employees.json");
···
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print("Pretty simple struct - {f}\n", .{pretty(person)});
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print(
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"Pretty simple inline struct - {f}\n",
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-
.{prettyO(person, .{ .inline_structs = true })},
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+
.{prettyO(person, .{ .struct_inline = true })},
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);
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print("Pretty nested struct - {f}\n", .{pretty(nested)});
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···
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print("Pretty array of floats - {f}\n", .{pretty([_]f32{ 0.1, 0.2, 0.3 })});
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print(
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"Pretty array of floats inline - {f}\n",
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.{prettyO([3]f32{ 0.1, 0.2, 0.3 }, .{ .inline_arrays = true })},
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+
.{prettyO([3]f32{ 0.1, 0.2, 0.3 }, .{ .array_inline = true })},
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);
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print(
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"Pretty array of floats inline with indices - {f}\n",
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.{prettyO([3]f32{ 0.1, 0.2, 0.3 }, .{
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-
.inline_arrays = true,
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.always_show_index = true,
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.array_inline = true,
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.array_always_show_index = true,
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})},
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);
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+71
-47
pretty.zig
+71
-47
pretty.zig
···
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Options{};
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pub const Options = struct {
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-
no_color: bool = false,
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+
/// Disable pretty printing.
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///
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/// If enabled will format values using `{any}`
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disable: bool = false,
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-
indent_width: comptime_int = 2,
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+
/// Show type names
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+
show_type_names: bool = true,
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+
/// Don't show type names for the root value
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+
skip_root_type_name: bool = false,
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-
inline_arrays: bool = false,
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-
always_show_index: bool = false,
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+
/// Disable color output
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+
no_color: bool = false,
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+
/// Customize the theme, change colors or separators
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+
theme: Theme = .{},
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-
treat_u8_ptr_as_string: bool = true,
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-
treat_u8_ptr_slice_as_string: bool = true,
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-
inline_slice: bool = false,
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+
/// Inline print arrays
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+
array_inline: bool = false,
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+
/// Always show array indices, even in inline mode
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+
array_always_show_index: bool = false,
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-
inline_structs: bool = false,
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-
highlight_union_tag: bool = true,
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-
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-
show_type_names: bool = true,
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-
skip_root_type_name: bool = false,
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+
/// Treat pointers to `[]u8` / `[]const u8` as strings
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+
ptr_array_u8_as_string: bool = true,
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+
/// Treat pointers to a u8 slice as strings
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ptr_slice_u8_as_string: bool = true,
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+
/// Inline print slices
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ptr_slice_inline: bool = false,
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+
/// Always show slice indices, even in inline mode
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+
ptr_slice_always_show_index: bool = false,
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-
theme: Theme = .{},
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+
/// Inline print structs
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struct_inline: bool = false,
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+
/// Highlight tag type of unions
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+
union_highlight_tag: bool = true,
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};
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pub const Theme = struct {
···
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false,
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};
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+
indent_width: comptime_int = 2,
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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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index_value_sep: []const u8 = " = ",
···
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index_open: []const u8 = "[",
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index_close: []const u8 = "]",
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+
array_open: []const u8 = "{",
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+
array_close: []const u8 = "}",
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+
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+
vec_open: []const u8 = "(",
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+
vec_close: []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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comptime color: Theme.Color,
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) void {
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if (this.no_color or default_options.no_color) return;
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-
this.tty.setColor(ctx.options.theme.getColor(color)) catch {};
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+
this.tty.setColor(comptime ctx.options.theme.getColor(color)) catch {};
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}
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pub inline fn setColorRaw(this: *const Runtime, color: Io.Terminal.Color) void {
···
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try run.write(@typeName(T));
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if (active_type == .@"union") {
260
-
if (ctx.options.highlight_union_tag) {
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+
if (ctx.options.union_highlight_tag) {
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run.resetColor();
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run.setColor(ctx, .field);
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}
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try run.print("{}", .{std.meta.activeTag(value)});
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-
if (ctx.options.highlight_union_tag) {
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+
if (ctx.options.union_highlight_tag) {
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run.resetColor();
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run.setColor(ctx, .dim);
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}
···
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.options = ctx.options,
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};
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-
if (ctx.options.inline_structs) {
367
+
if (ctx.options.struct_inline) {
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run.setColor(ctx, .dim);
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try run.write(".{ ");
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run.resetColor();
···
350
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comptime var index = 0;
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inline for (st.fields) |field| {
353
-
indent(next_ctx, next_ctx.options.inline_structs, run);
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-
if (index != 0 and ctx.options.inline_structs) {
375
+
indent(next_ctx, next_ctx.options.struct_inline, run);
376
+
if (index != 0 and ctx.options.struct_inline) {
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run.setColor(ctx, .dim);
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try run.write(", ");
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run.resetColor();
···
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index += 1;
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}
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-
if (ctx.options.inline_structs) {
392
+
if (ctx.options.struct_inline) {
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run.setColor(ctx, .dim);
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try run.write(" }");
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run.resetColor();
···
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.options = ctx.options,
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};
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400
-
if (ctx.options.inline_arrays) {
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run.setColor(ctx, .dim);
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try run.write("{ ");
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-
run.resetColor();
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-
}
422
+
if (ctx.options.array_inline) try arrayOpen(ctx, run);
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comptime var index = 0;
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inline for (value) |val| {
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indent(
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next_ctx,
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-
next_ctx.options.inline_arrays,
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+
next_ctx.options.array_inline,
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run,
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);
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run.setColor(ctx, .dim);
415
-
if (index != 0 and ctx.options.inline_arrays)
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+
if (index != 0 and ctx.options.array_inline)
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try run.write(", ");
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-
if (!ctx.options.inline_arrays or ctx.options.always_show_index) {
436
+
if (!ctx.options.array_inline or ctx.options.array_always_show_index) {
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try run.write(ctx.options.theme.index_open);
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try run.print("{}", .{index});
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try run.write(ctx.options.theme.index_close ++
···
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index += 1;
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}
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-
if (ctx.options.inline_arrays) {
433
-
run.setColor(ctx, .dim);
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try run.write(" }");
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run.resetColor();
436
-
}
450
+
if (ctx.options.array_inline) try arrayClose(ctx, run);
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}
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inline fn formatVector(
···
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457
value: @Vector(vec.len, vec.child),
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) !void {
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run.setColor(ctx, .dim);
446
-
try run.write("( ");
460
+
try run.write(ctx.options.theme.vec_open ++ " ");
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run.resetColor();
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inline for (0..vec.len) |idx| {
···
457
471
}
458
472
459
473
run.setColor(ctx, .dim);
460
-
try run.write(" )");
474
+
try run.write(" " ++ ctx.options.theme.vec_close);
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475
run.resetColor();
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476
}
463
477
···
468
482
value: anytype,
469
483
) !void {
470
484
const is_string = switch (@typeInfo(ptr.child)) {
471
-
.array => |arr| arr.child == u8 and ctx.options.treat_u8_ptr_as_string,
485
+
.array => |arr| arr.child == u8 and ctx.options.ptr_array_u8_as_string,
472
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else => false,
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};
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if (is_string) return formatString(ctx, run, value);
···
482
496
run: *Runtime,
483
497
value: anytype,
484
498
) !void {
485
-
if (ptr.child == u8 and ctx.options.treat_u8_ptr_slice_as_string)
499
+
if (ptr.child == u8 and ctx.options.ptr_slice_u8_as_string)
486
500
return formatString(ctx, run, value);
487
501
488
502
const next_ctx = Context{
489
-
.depth = ctx.depth + 1,
503
+
.depth = if (!ctx.options.ptr_slice_inline) ctx.depth + 1 else ctx.depth,
490
504
.exited_comptime = ctx.exited_comptime,
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505
.options = ctx.options,
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506
};
493
507
494
-
if (ctx.options.inline_slice) {
495
-
run.setColor(ctx, .dim);
496
-
try run.write("{ ");
497
-
run.resetColor();
498
-
}
508
+
if (ctx.options.ptr_slice_inline) try arrayOpen(ctx, run);
499
509
500
510
for (value, 0..) |val, idx| {
501
511
indent(
502
512
next_ctx,
503
-
next_ctx.options.inline_slice,
513
+
next_ctx.options.ptr_slice_inline,
504
514
run,
505
515
);
506
516
507
517
run.setColor(ctx, .dim);
508
-
if (idx != 0 and ctx.options.inline_slice)
518
+
if (idx != 0 and ctx.options.ptr_slice_inline)
509
519
try run.write(", ");
510
520
511
-
if (!ctx.options.inline_slice or ctx.options.always_show_index) {
521
+
if (!ctx.options.ptr_slice_inline or ctx.options.ptr_slice_always_show_index) {
512
522
try run.write(ctx.options.theme.index_open);
513
523
try run.print("{}", .{idx});
514
524
try run.write(ctx.options.theme.index_close ++
···
519
529
520
530
try innerFmt(ptr.child, next_ctx, run, val, .{ .skip_type_name = true });
521
531
}
532
+
533
+
if (ctx.options.ptr_slice_inline) try arrayClose(ctx, run);
522
534
}
523
535
524
536
inline fn formatPtrMany(
···
593
605
) void {
594
606
if (inline_option) return;
595
607
596
-
const text: [ctx.depth * ctx.options.indent_width]u8 = @splat(' ');
608
+
const text: [ctx.depth * ctx.options.theme.indent_width]u8 = @splat(' ');
597
609
run.write("\n" ++ text) catch {};
598
610
}
611
+
612
+
fn arrayOpen(comptime ctx: Context, run: *const Runtime) !void {
613
+
run.setColor(ctx, .dim);
614
+
try run.write(ctx.options.theme.array_open ++ " ");
615
+
run.resetColor();
616
+
}
617
+
618
+
fn arrayClose(comptime ctx: Context, run: *const Runtime) !void {
619
+
run.setColor(ctx, .dim);
620
+
try run.write(" " ++ ctx.options.theme.array_close);
621
+
run.resetColor();
622
+
}