88 行
2.3 KiB
Zig
88 行
2.3 KiB
Zig
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const std = @import("std");
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const fs = std.fs;
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const io = std.io;
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const version = "1.0.0";
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fn help() !void {
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const stdof = io.getStdOut().writer();
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var bw = io.bufferedWriter(stdof);
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const stdout = bw.writer();
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try stdout.print("076 coreutils\n", .{});
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try stdout.print("使用法: cp [OPTION]... [-T] SOURCE DEST\n", .{});
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try stdout.print("または: cp [OPTION]... SOURCE... DIRECTORY\n", .{});
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try stdout.print("または: cp [OPTION]... -t DIRECTORY SOURCE...\n", .{});
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try stdout.print("SOURCE から DEST へのコピー、または複数の SOURCE の DIRECTORY へのコピーを行います。\n\n", .{});
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try stdout.print("-h ヘルプを表示\n", .{});
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try stdout.print("-v バージョンを表示\n", .{});
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try bw.flush();
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}
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fn ver() !void {
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const stdof = io.getStdOut().writer();
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var bw = io.bufferedWriter(stdof);
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const stdout = bw.writer();
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try stdout.print("cp (076 coreutils) {s}\n", .{version});
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try bw.flush();
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}
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pub fn main() !void {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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defer _ = gpa.deinit();
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const alloc = gpa.allocator();
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var option = std.ArrayList(u8).init(alloc);
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defer option.deinit();
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var fname = std.ArrayList([]const u8).init(alloc);
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defer fname.deinit();
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const args = try std.process.argsAlloc(alloc);
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defer std.process.argsFree(alloc, args);
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for (args, 0..) |arg, i| {
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if (i == 0) continue;
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var m: [1]u8 = [_]u8{'-'};
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if (std.mem.eql(u8, arg[0..1], m[0..])) {
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for (arg, 0..) |a, j| {
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if (j == 0) continue;
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try option.append(a);
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}
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} else {
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try fname.append(arg);
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}
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}
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for (option.items) |i| {
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if (i == 'h') {
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try help();
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return;
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}
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if (i == 'v') {
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try ver();
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return;
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}
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}
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if (fname.items.len != 2) {
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try help();
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return;
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}
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const in = try fs.cwd().openFile(fname.items[0], .{});
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defer in.close();
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const out = try fs.cwd().createFile(fname.items[1], .{ .read = true });
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defer out.close();
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var buf: [1024]u8 = undefined;
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while (true) {
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const br = try in.read(buf[0..]);
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if (br == 0) break;
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try out.writeAll(buf[0..br]);
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}
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}
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