windows: fix compile errors

src/cli_args.zig

@@ -6,8 +6,6 @@ const fs = std.fs;
 const mem = std.mem;
 
 const Mode = main.Mode;
-const stdout = std.io.getStdOut();
-const stderr = std.io.getStdErr();
 const process = std.process;
 
 const usage: []const u8 =
@@ -101,6 +99,7 @@ fn cleanup(write_file: *?fs.File) !Mode {
 /// Check input arguments for correctness and stop early.
 /// TODO: How to ensure process.exit is never used as return status of zig error codes?
 pub fn validateArgs(args: [][:0]u8, write_file_in: *?fs.File, mode_in: Mode) !Mode {
+    const stdout = std.io.getStdOut();
     var mode: Mode = mode_in; // default execution mode
     const write_file: *?fs.File = write_file_in;
     if (args.len <= 1) {

src/main.zig

@@ -9,9 +9,6 @@ const process = std.process;
 const unicode = std.unicode;
 const testing = std.testing;
 
-const stdout = std.io.getStdOut();
-const stderr = std.io.getStdErr();
-
 const cli_args = @import("cli_args.zig");
 
 fn fatal(comptime format: []const u8, args: anytype) noreturn {
@@ -126,12 +123,16 @@ fn isWordOkAsciiExtended(word: []const u8) StatusOkAsciiExt {
 }
 
 inline fn skipItIfWindows(it: *mem.TokenIterator(u8, .any)) void {
+    // TODO FIXME: This does not check, that we have DOS paths
     const native_os = builtin.target.os.tag;
     switch (native_os) {
         .windows => {
             if (0x61 <= it.buffer[0] and it.buffer[0] <= 0x7A // A-Z
             and it.buffer[1] == ':') {
-                it.next();
+                const n = it.next();
+                if (n == null) {
+                    @panic("drive path not supported, only DOS paths are supported");
+                }
             }
         },
         else => {},
@@ -729,6 +730,9 @@ pub fn main() !u8 {
 
     defer if (write_file != null) write_file.?.close();
     mode = try cli_args.validateArgs(args, &write_file, mode);
+    const stdout = std.io.getStdOut();
+    // const stderr = std.io.getStdErr();
+
     const ret = switch (mode) {
         // only check status
         Mode.CheckOnly => try checkOnly(Encoding.Utf8, arena, args),

src/perfdir_gen.zig

@@ -6,7 +6,6 @@ const log = std.log;
 const mem = std.mem;
 const os = std.os;
 const process = std.process;
-const stdout = std.io.getStdOut();
 
 const usage: []const u8 =
     \\ path
@@ -129,6 +128,7 @@ fn add(comptime UT: type, cust_nr: []UT, base: UT, path_buf: []u8, n_pbuf: *u64,
 }
 
 fn printCustomNr(comptime UT: type, cust_nr: []UT) !void {
+    const stdout = std.io.getStdOut();
     try stdout.writeAll("created ");
     const case = fmt.Case.lower;
     digitsToChars(cust_nr, case);
@@ -138,6 +138,7 @@ fn printCustomNr(comptime UT: type, cust_nr: []UT) !void {
 }
 
 pub fn main() !void {
+    const stdout = std.io.getStdOut();
     var path_buffer: [1000]u8 = undefined;
     var n_pbuf: u64 = 0; // next free position
     var arena_instance = std.heap.ArenaAllocator.init(std.heap.page_allocator);

src/testdir_gen.zig

@@ -6,7 +6,6 @@ const log = std.log;
 const mem = std.mem;
 const os = std.os;
 const process = std.process;
-const stdout = std.io.getStdOut();
 
 // 1. ensure test_directories existence
 // 2. control_sequences 0x00..0x31 and 0x7F
@@ -56,6 +55,7 @@ fn ensureFile(path: []const u8) !void {
 }
 
 pub fn main() !void {
+    const stdout = std.io.getStdOut();
     var path_buffer: [1000]u8 = undefined;
     var n_pbuf: u64 = 0; // next free position
     var arena_instance = std.heap.ArenaAllocator.init(std.heap.page_allocator);