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cli args can parse null-terminated strings

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This commit is contained in:
Mitchell Hashimoto
2022-09-29 14:45:37 -07:00
parent 5567564dd0
commit 7eac0afff2
1 changed files with 23 additions and 0 deletions
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23
src/cli_args.zig
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@ -117,6 +117,14 @@ fn parseIntoField(
break :value buf;
},
[:0]const u8 => value: {
const slice = value orelse return error.ValueRequired;
const buf = try alloc.allocSentinel(u8, slice.len, 0);
mem.copy(u8, buf, slice);
buf[slice.len] = 0;
break :value buf;
},
bool => try parseBool(value orelse "t"),
u8 => try std.fmt.parseInt(
@ -199,6 +207,21 @@ test "parseIntoField: string" {
try testing.expectEqualStrings("42", data.a);
}
test "parseIntoField: sentinel string" {
const testing = std.testing;
var arena = ArenaAllocator.init(testing.allocator);
defer arena.deinit();
const alloc = arena.allocator();
var data: struct {
a: [:0]const u8,
} = undefined;
try parseIntoField(@TypeOf(data), alloc, &data, "a", "42");
try testing.expectEqualStrings("42", data.a);
try testing.expectEqual(@as(u8, 0), data.a[data.a.len]);
}
test "parseIntoField: bool" {
const testing = std.testing;
var arena = ArenaAllocator.init(testing.allocator);