• Domain (2/2) Dec 31 2017 In Windows, exists, rename, copy will report file not exists when
• Patrick Schluter (5/7) Jan 01 2018 It's unclear what your problem is but here a wild guess.
• Jonathan M Davis (12/19) Jan 01 2018 std.file abstracts all of that away for you, and it does have at least s...
• John Chapman (5/7) Jan 01 2018 Works for me. I created a file with the name "中文.txt" and
• Domain (10/17) Jan 01 2018 Yes, "中文.txt".exists return true. But when then filename read
• Domain (3/22) Jan 01 2018 Problem solved! I change the properties of cmd from "Raster
• tipdbmp (14/14) Jan 01 2018 I think you have to decode your input to UTF-8.

Domain <dont_email empty.com> writes:

In Windows, exists, rename, copy will report file not exists when 
you input non-English filename, such as Chinese 中文.txt

Patrick Schluter <Patrick.Schluter bbox.fr> writes:

On Sunday, 31 December 2017 at 18:21:29 UTC, Domain wrote:
 In Windows, exists, rename, copy will report file not exists 
 when you input non-English filename, such as Chinese 中文.txt

It's unclear what your problem is but here a wild guess.

Windows API's for Unicode use UTF-16 as far as I know. Strings in 
D are utf-8. So before calling win32 API function, they have to 
be transformed to wstring i.e. utf-16 strings.

Jonathan M Davis <newsgroup.d jmdavisprog.com> writes:

On Monday, January 01, 2018 10:47:51 Patrick Schluter via Digitalmars-d-
learn wrote:
 On Sunday, 31 December 2017 at 18:21:29 UTC, Domain wrote:
 In Windows, exists, rename, copy will report file not exists
 when you input non-English filename, such as Chinese 中文.txt

 It's unclear what your problem is but here a wild guess.

 Windows API's for Unicode use UTF-16 as far as I know. Strings in
 D are utf-8. So before calling win32 API function, they have to
 be transformed to wstring i.e. utf-16 strings.

std.file abstracts all of that away for you, and it does have at least some
tests that use Unicode characters, though I think that most of the functions
don't have tests that use Unicode characters. I would not have expected a
Unicode bug like this to be in std.file, but it's certainly possible.

It's also possible that the console needs to be set to UTF-8 or UTF-16 or
something, since the default often seems to cause problems for folks -
though unless the file names are coming from the command-line, I wouldn't
have expected that to be an issue. I do almost nothing with Windows though,
so I'm not very familiar with the ins and outs of that mess.

- Jonathan M Davis

John Chapman <johnch_atms hotmail.com> writes:

On Sunday, 31 December 2017 at 18:21:29 UTC, Domain wrote:
 In Windows, exists, rename, copy will report file not exists 
 when you input non-English filename, such as Chinese 中文.txt

Works for me. I created a file with the name "中文.txt" and 
std.file.exists returned true.

Is your D source file saved in ASCII by any chance? Try saving it 
with a different encoding, such as UTF8.

Domain <dont_email empty.com> writes:

On Monday, 1 January 2018 at 12:33:27 UTC, John Chapman wrote:
 On Sunday, 31 December 2017 at 18:21:29 UTC, Domain wrote:
 In Windows, exists, rename, copy will report file not exists 
 when you input non-English filename, such as Chinese 中文.txt

 Works for me. I created a file with the name "中文.txt" and 
 std.file.exists returned true.

 Is your D source file saved in ASCII by any chance? Try saving 
 it with a different encoding, such as UTF8.

Yes, "中文.txt".exists return true. But when then filename read 
from stdin,
it return false

stdin
     .byLineCopy(No.keepTerminator)
     .each!((a) { writefln("%s --> %s", a, a.exists); });

dir *.txt /b | test.exe

English.txt --> true
中文.txt --> false

Domain <dont_email empty.com> writes:

On Monday, 1 January 2018 at 16:13:06 UTC, Domain wrote:
 On Monday, 1 January 2018 at 12:33:27 UTC, John Chapman wrote:
 On Sunday, 31 December 2017 at 18:21:29 UTC, Domain wrote:
 In Windows, exists, rename, copy will report file not exists 
 when you input non-English filename, such as Chinese 中文.txt

 Works for me. I created a file with the name "中文.txt" and 
 std.file.exists returned true.

 Is your D source file saved in ASCII by any chance? Try saving 
 it with a different encoding, such as UTF8.

 Yes, "中文.txt".exists return true. But when then filename read 
 from stdin,
 it return false

 stdin
     .byLineCopy(No.keepTerminator)
     .each!((a) { writefln("%s --> %s", a, a.exists); });

 dir *.txt /b | test.exe

 English.txt --> true
 中文.txt --> false

Problem solved! I change the properties of cmd from "Raster 
Fonts" to "Consolas" and all work well. But I don't know why.

tipdbmp <email example.com> writes:

I think you have to decode your input to UTF-8.

stdin
.byLineCopy(No.keepTerminator)
.each!((string file_name_raw) {

     // change Latin1String to the code page of your console;
     // use the 'chcp' command to see the current code page of 
your console
     //
     import std.encoding;
     auto raw = cast(immutable( Latin1String)[]) file_name_raw;
     string file_name_utf8;
     transcode(raw, file_name_utf8);

     writefln("%s --> %s", file_name_utf8, file_name_utf8.exists);
});