1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
const std = @import("std");
pub const AppError = error{
MissingName,
EmptyInput,
};
pub const Theme = enum {
light,
dark,
solarized,
};
pub const Settings = struct {
name: []const u8,
retries: u8 = 3,
theme: Theme = .dark,
tags: []const []const u8 = &.{},
pub fn validate(self: Settings) AppError!void {
if (self.name.len == 0) return error.MissingName;
if (self.tags.len == 0) return error.EmptyInput;
}
};
pub fn summarize(settings: Settings) []const u8 {
return switch (settings.theme) {
.light => "bright",
.dark => "focused",
.solarized => "balanced",
};
}
pub fn findLongestTag(tags: []const []const u8) ?[]const u8 {
var longest: ?[]const u8 = null;
for (tags) |tag| {
if (longest == null or tag.len > longest.?.len) {
longest = tag;
}
}
return longest;
}
pub fn renderExample(writer: anytype) !void {
const settings = Settings{
.name = "Nova Zig",
.tags = &.{ "tree-sitter", "zls", "tasks" },
};
try settings.validate();
try writer.print("theme summary: {s}\n", .{summarize(settings)});
if (findLongestTag(settings.tags)) |tag| {
try writer.print("longest tag: {s}\n", .{tag});
}
const block_value = label: {
var total: usize = 0;
for (settings.tags) |tag| total += tag.len;
break :label total;
};
try writer.print("combined tag length: {}\n", .{block_value});
const multiline =
\\sample text block
\\with enough lines to make folding obvious
\\inside Nova's editor
;
_ = multiline;
}
test "showcase remains valid" {
var output: std.ArrayList(u8) = .empty;
defer output.deinit(std.testing.allocator);
try renderExample(output.writer(std.testing.allocator));
try std.testing.expect(std.mem.indexOf(u8, output.items, "theme summary") != null);
}
|
