This is the mail archive of the mailing list for the Cygwin project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: Valid file-name characters

On Mon, Jul 22, 2002 at 01:48:00PM +0400, egor duda wrote:
>Monday, 22 July, 2002 Robert Collins wrote:
>>> RC> I was just about to suggest that whatever character is used is used as
>>> RC> an escape char rather than a literal replacement.
>>> RC> i.e. 
>>> RC> WIN32      CYGWIN
>>> 'aux%c' ->> 'aux:'
>>> 'aux%%' ->> 'aux%'
>>> which means that
>>> s='a%%'
>>> touch $s
>>> notepad $s
>>> won't work.
>RC> Unless cygwin detects that notepad is a non cygwin program, and therefor
>RC> needs the on-disk name.
>Even if cygwin knows that notepad is native program it can't tell for
>sure if a%% is name of disk file. It may be a name of my dog to be
>told from my computer speakers, for instance. An he surely won't like
>if i misspell his name ;-)
>RC> With 
>'aux%' ->> 'aux:'
>RC> s='aux:'
>RC> touch $s
>RC> notepad $s
>RC> won't work either - unless cygwin detects that notepad...
>That's exactly my point. Having some fancy rules for filename encoding
>breaks interoperability with native tools. Escaping non-valid
>characters like ':' is not big problem, since native tools can't use
>such names anyway. But messing with valid characters like '%' is far
>more dangerous and error-prone.

Thanks Egor.  That's precisely why I have always avoided this kind
of filename munging in Cygwin.


Unsubscribe info:
Bug reporting:

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]