71 lines
2.0 KiB
Zig
71 lines
2.0 KiB
Zig
const std = @import("std");
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const mem = std.mem;
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const Self = @This();
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const InfoKey = enum {
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Title,
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Author,
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Source,
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OriginalComposers,
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};
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const source_original = "Dr. Robotnik's Ring Racers";
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allocator: mem.Allocator,
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id: []const u8,
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title: ?[]const u8,
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author: ?[]const u8,
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source: ?[]const u8,
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originalComposers: ?[]const u8,
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is_original: bool,
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pub fn parseLump(allocator: mem.Allocator, lump: []const u8) !Self {
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// Get lines
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var lines = mem.tokenize(u8, lump, "\n");
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// Next line is the ID, we need that ASAP!
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const id = mem.trim(u8, lines.next().?, " \r");
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var info = Self{
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.allocator = allocator,
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.id = try allocator.dupe(u8, id),
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.title = null,
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.author = null,
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.source = null,
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.originalComposers = null,
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.is_original = false,
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};
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// Read rest of lump and assign to fields in struct
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while (lines.next()) |line| {
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const sep = mem.indexOf(u8, line, "=");
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if (sep) |sepIndex| {
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const key = mem.trim(u8, line[0..sepIndex], " \r");
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const val = mem.trim(u8, line[sepIndex + 1 ..], " \r");
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const ownedVal = try allocator.dupe(u8, val);
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const infoKey = std.meta.stringToEnum(InfoKey, key) orelse continue;
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switch (infoKey) {
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.Title => info.title = ownedVal,
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.Author => info.author = ownedVal,
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.Source => info.source = ownedVal,
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.OriginalComposers => info.originalComposers = ownedVal,
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}
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}
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}
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// Check if it's an original work
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if (info.source) |source| {
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info.is_original = mem.eql(u8, source, source_original);
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}
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return info;
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}
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pub fn deinit(self: Self) void {
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self.allocator.free(self.id);
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if (self.title) |ptr| self.allocator.free(ptr);
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if (self.author) |ptr| self.allocator.free(ptr);
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if (self.source) |ptr| self.allocator.free(ptr);
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if (self.title) |ptr| self.allocator.free(ptr);
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if (self.originalComposers) |ptr| self.allocator.free(ptr);
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}
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