Zig utility library
learned that `std.fs.path` exists
-83
-81
src/path.zig
-81
src/path.zig
···
1
-
const builtin = @import("builtin");
2
-
const std = @import("std");
3
-
const mem = std.mem;
4
-
5
-
const is_windows = builtin.os.tag == .windows;
6
-
7
-
/// The path delimeter of the target system
8
-
pub const path_delim: u8 = if (is_windows) '\\' else '/';
9
-
10
-
/// Return the filename of `path`
11
-
pub fn basename(path: []const u8) []const u8 {
12
-
if (mem.lastIndexOfScalar(u8, path, path_delim)) |index|
13
-
return path[index + 1 ..];
14
-
return path;
15
-
}
16
-
17
-
/// Returns the extension of `path`'s filename
18
-
pub fn getFileExt(path: []const u8) ?[]const u8 {
19
-
const filename = basename(path);
20
-
21
-
if (mem.startsWith(u8, filename, ".") and
22
-
mem.count(u8, filename, ".") > 1)
23
-
return getFileExt(filename[1..]);
24
-
25
-
if (mem.indexOf(u8, filename, ".")) |index|
26
-
return filename[index..];
27
-
28
-
return null;
29
-
}
30
-
31
-
/// Returns `path`'s filename without the extension
32
-
pub fn stripFileExt(path: []const u8) []const u8 {
33
-
const filename = basename(path);
34
-
35
-
if (getFileExt(filename)) |ext|
36
-
return filename[0..(filename.len - ext.len)];
37
-
38
-
return filename;
39
-
}
40
-
41
-
/// Returns the parent component of `path`
42
-
pub fn getDirectory(path: []const u8) ?[]const u8 {
43
-
if (mem.lastIndexOfScalar(u8, path, path_delim)) |index|
44
-
return path[0..index];
45
-
46
-
return null;
47
-
}
48
-
49
-
/// Returns whether `path` is absolute
50
-
pub fn isAbsolute(path: []const u8) bool {
51
-
// TODO: implement isAbsolute
52
-
_ = path;
53
-
return false;
54
-
}
55
-
56
-
test "basename" {
57
-
if (is_windows) {
58
-
try std.testing.expectEqualStrings("file", basename("\\nested\\directory\\tree\\file"));
59
-
} else {
60
-
try std.testing.expectEqualStrings("file", basename("/nested/directory/tree/file"));
61
-
}
62
-
}
63
-
64
-
test "ext" {
65
-
if (!is_windows) {
66
-
try std.testing.expectEqualStrings(".txt", getFileExt("hello.txt") orelse "");
67
-
try std.testing.expectEqualStrings(".tar.gz", getFileExt("/dl/archive.tar.gz") orelse "");
68
-
try std.testing.expectEqualStrings(".py", getFileExt("/dir/.file.py") orelse "");
69
-
try std.testing.expectEqualStrings(".bin", getFileExt(".bin") orelse "");
70
-
71
-
try std.testing.expectEqualStrings("hello", stripFileExt("hello.txt"));
72
-
try std.testing.expectEqualStrings(".hidden", stripFileExt("/dir/.hidden.txt"));
73
-
}
74
-
}
75
-
76
-
test "dir" {
77
-
if (!is_windows) {
78
-
try std.testing.expectEqualStrings("/etc", getDirectory("/etc/passwd") orelse "");
79
-
try std.testing.expectEqualStrings("/nested/directory", getDirectory("/nested/directory/") orelse "");
80
-
}
81
-
}
-2
src/root.zig
-2
src/root.zig
···
9
9
10
10
pub const StringBuilder = @import("./StringBuilder.zig");
11
11
12
-
pub const path = @import("./path.zig");
13
12
pub const mem = @import("./mem.zig");
14
13
15
14
const slice_iterator = @import("./slice_iterator.zig");
···
25
24
_ = packet;
26
25
_ = sparse_set;
27
26
_ = StringBuilder;
28
-
_ = path;
29
27
_ = mem;
30
28
_ = slice_iterator;
31
29
_ = queue;