[Openmcl-devel] Run-program on windows with path names containing spaces

Loïc Maury lmaury at gmail.com
Fri Feb 14 15:35:21 UTC 2014


To follow the problem, can you launch on Window, for-example notepad.exe ?

I try but that doesn't work,

(run-program "notepad" '() :input t :output :stream)

and seem to be blocked for ever ?

if I pass an argument (the name of file), in command line for example

(run-program "notepad" '("foo") :input t :output :stream)

it ask me if I want to create it and stay blocked too.

However command from cygwin (touch, cat) work well.

On linux everything work fine.

Thank you

Loic


On Fri, Feb 14, 2014 at 12:10 AM, Anton Vodonosov <avodonosov at yandex.ru>wrote:

> I investigated this, it's definitely a bug in CCL 1.9
>
> On CCL 1.9 on Windows, when you call ccl:run-program, it's parameter
> PROGRAM is preppended
> to the ARGS parameter to form a single list of strings, then this list is
> passed
> to ccl::make-windows-command-line to form a single command line string,
> and then
> that string is passed to CreateProcess WinAPI function as the second
> parameter
> lpCommandLine (
> http://msdn.microsoft.com/en-us/library/windows/desktop/ms682425(v=vs.85).aspx
> )
>
> See linux-files.lisp in CCL sources.
>
> Suppose I want to start a program C:\Program Files
> (x86)\acl90express\alisp.exe
> without arguments.
>
> In Lisp it must be called like this:
>
>   (ccl:run-program "C:\\Program Files (x86)\\acl90express\\alisp.exe" '())
>
> WinAPI CreateProcess function should receive the following lpCommandLine
>
>   "\"C:\\Program Files (x86)\\acl90express\\alisp.exe\""
>
> i.e. all the executable path must be surrounded by double quotes to prevent
> spaces in the path to be interpreted as separators.
>
> But CCL computes different thing:
>
>   (format t "~A~%" (ccl::make-windows-command-line '("C:\\Program Files
> (x86)\\acl90express\\alisp.exe")))
>   => C:\Program" "Files" "(x86)\acl90express\alisp.exe
>
> i.e. CCL surrounds every space by double quotes, instead of surrounding
> whole executable path.
>
> Probably we need to reopen #858 or submit a new ticket.
>
> Best regards,
> - Anton
>
>
>
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