86 行
2.2 KiB
Zig
86 行
2.2 KiB
Zig
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 = @import("version.zig");
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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: basename 名前 [接尾辞]\n", .{});
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try stdout.print("パス名からディレクトリ部分を取り除いた名前を表示します。\n", .{});
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try stdout.print("指定があれば、末尾の接尾辞も取り除きます。\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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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 name = std.ArrayList([]const u8).init(alloc);
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defer name.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 name.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 version.ver("basename");
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return;
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}
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}
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if (name.items.len == 0) {
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try help();
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return;
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}
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var basename: []const u8 = undefined;
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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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for (name.items, 0..) |item, i| {
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if (i > 1) break;
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if (i == 0) basename = fs.path.basename(item);
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if (i == 1) {
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if (std.mem.endsWith(u8, basename, item)) {
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const end = basename.len - item.len;
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basename = basename[0..end];
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}
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}
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}
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try stdout.print("{s}\n", .{basename});
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try bw.flush();
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}
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