This is the mail archive of the cygwin 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: How to uniformly point to the root of a drive?


Corinna Vinschen wrote:
On May 21 15:46, Dave Korn wrote:
On 21 May 2007 15:30, Corinna Vinschen wrote:
so we can change cygcheck to handle this unambiguously.
cygpath.

Right. Unfortunately I just found that -m is sometimes used as a modifier (-dm makes sense) and sometimes standalone (-m instead of -w).

Actually it seems to be better to disallow only combinations which
explicitely don't make sense, but to allow any combination which make
*some* sort of sense.  The rules would be, afaics

- Don't allow -d with -l.
- Allow any other mix of -d, -l, -m and -w.
- Don't allow -u with any of the above flags.

If you mean that '-[wm]+' (rexexpr syntax) means '-m', that's what I thought made the most sense. IOW '-w' defaults to '\' but does not override '-m', and '-m' implies '-w' unless otherwise specified. Actually I see no problem with '-um', it's just a no-op because '-u' means '-m' anyway. Even '-lu' and '-su' are actually valid...


So...

'-w' and '-u' are mutually exclusive.
'-s', '-l', '-m' imply '-w' unless '-u' used
'-d' is an alias for '-ws'

Examples:
cygpath -su 'c:\program files'
--> /cygdrive/c/PROGRA~1 # valid path!
cygpath -dm 'c:\program files'
--> C:/PROGRA~1

--
Matthew
When in doubt, duct tape!


-- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/


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