Zig utility library
add `Config` module
+85
+69
src/config.zig
+69
src/config.zig
···
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const std = @import("std");
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const mem = std.mem;
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const Allocator = mem.Allocator;
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// TODO: maybe revamp to work like `flag` module
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pub const Error = error{
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EmptyKey,
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NoSplit,
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} || Allocator.Error;
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pub const Map = std.StringArrayHashMap([]const u8);
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map: Map,
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const Self = @This();
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pub fn init(alloc: Allocator) Self {
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return .{ .map = .init(alloc) };
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}
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pub fn deinit(self: *Self) void {
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self.map.deinit();
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}
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fn evalLine(self: *Self, line: []const u8) Error!void {
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const trim = " \n\r\t";
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const trimmed_line = mem.trim(u8, line, trim);
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if (trimmed_line.len == 0) {
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return;
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} else if (trimmed_line[0] == '#') {
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return;
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}
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const split = @import("./mem.zig").splitOnceScalar(u8, trimmed_line, '=') orelse {
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return error.NoSplit;
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};
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const key = mem.trim(u8, split[0], trim);
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if (key.len == 0) {
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return error.EmptyKey;
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}
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try self.map.put(key, split[1]);
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}
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pub fn read(self: *Self, contents: []const u8) Error!void {
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var iter = mem.tokenizeAny(u8, contents, "\n");
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while (iter.next()) |line| {
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try self.evalLine(line);
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}
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}
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pub fn get(self: *const Self, key: []const u8) ?[]const u8 {
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return self.map.get(key);
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}
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test "basic" {
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var cfg = Self.init(std.testing.allocator);
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defer cfg.deinit();
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try cfg.read(
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\\name=World
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\\age=est. 4.54 billion years
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);
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try std.testing.expectEqualStrings("World", cfg.get("name").?);
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}
+16
src/root.zig
+16
src/root.zig
···
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pub const flag = @import("./flag.zig");
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pub const Config = @import("./config.zig");
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/// Return whether lowercased `s` matches `true`, `yes`, or `y`
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pub fn isTruthy(s: []const u8) bool {
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if (std.mem.eql(u8, s, "true")) {
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return true;
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} else if (std.mem.eql(u8, s, "yes")) {
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return true;
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} else if (std.mem.eql(u8, s, "y")) {
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return true;
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}
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return false;
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}
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test {
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_ = math;
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_ = mem;
···
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_ = gamedev;
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_ = flag;
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_ = Config;
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}