dev-cpp-users

[Dev-C++] Automatic wildcard expansion

[Abhijit S. <mu...@gm...>]

If I run
    makedict e d:\code\makedict\dict.txt *.txt
my program receives it as

-Start--------------------------
arg 0: makedict
arg 1: e
arg 2: d:\code\makedict\dict.txt
arg 3: dict.txt
-Stop---------------------------

I recall that this behaviour is a GCC feature, and I can bypass it by
quoting the argument, but how can I explicitly tell the compiler to disable
such expansion?

--------------------------
Checked with NAV 2002
http://mudeth.tripod.com

RE: [Dev-C++] Automatic wildcard expansion

[Ioannis V. <no...@ho...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of Abhijit Shylanath
> Sent: Friday, July 12, 2002 12:09 PM
> To: Dev-C++ Mailing List
> Subject: [Dev-C++] Automatic wildcard expansion
> 
> 
> If I run
>     makedict e d:\code\makedict\dict.txt *.txt
> my program receives it as
> 
> -Start--------------------------
> arg 0: makedict
> arg 1: e
> arg 2: d:\code\makedict\dict.txt
> arg 3: dict.txt
> -Stop---------------------------
> 
> I recall that this behaviour is a GCC feature, and I can bypass it by
> quoting the argument, but how can I explicitly tell the 
> compiler to disable
> such expansion?


You can't rely on specific behaviour. This mechanism could not work at
all (in which case argc would be 0). You can make some trick to avoid
th/e above behaviour, like using a parameter -all instead of * and do
the job internally.


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.cjb.net
* Alternative URL: http://run.to/noicys

Re: [Dev-C++] Automatic wildcard expansion

[Luigi S. <gi...@li...>]

At 14.39 07/12/02 +0530, "Abhijit Shylanath" <mu...@gm...> wrote:
>If I run
>     makedict e d:\code\makedict\dict.txt *.txt
>my program receives it as
>
>-Start--------------------------
>arg 0: makedict
>arg 1: e
>arg 2: d:\code\makedict\dict.txt
>arg 3: dict.txt
>-Stop---------------------------
>
>I recall that this behaviour is a GCC feature, and I can bypass it by
>quoting the argument, but how can I explicitly tell the compiler to disable
>such expansion?

It is a feature of MinGW (because command.com does not deal with wildcards) 
which, I guess, can't be disabled for consistency with the Unix (where the 
shell expands wildcards and you prevent that by escaping special characters).

--
Luigi

Re: [Dev-C++] Automatic wildcard expansion

[Mac R. <re...@no...>]

At least in theory, you can get the users of your program to work around
the issue by running either

	makedict e d:\code\makedict\dict.txt \*.txt (not recommended)

or

	makedict e d:\code\makedict\dict.txt "*.txt" (better)

The first option escapes just the * wildcard, and the second option
encloses the entire argument away from the expansion engine.  Since
DOS/Windows uses \ as a directory separator, I doubt that MinGW can
properly detect it as an escape character.  The quotes are an easier option
to explain, since they will be needed for long filenames that contain spaces.

The preceding advice is untested, and is based on the assumption that if
MinGW is trying to mimic UNIX behavior, it should also mimic the
appropriate protection mechanisms.

Mac



At 10:34 AM 7/13/02 +0200, Luigi Santillo wrote:
>At 14.39 07/12/02 +0530, "Abhijit Shylanath" <mu...@gm...> wrote:
>>If I run
>>     makedict e d:\code\makedict\dict.txt *.txt
>>my program receives it as
>>
>>-Start--------------------------
>>arg 0: makedict
>>arg 1: e
>>arg 2: d:\code\makedict\dict.txt
>>arg 3: dict.txt
>>-Stop---------------------------
>>
>>I recall that this behaviour is a GCC feature, and I can bypass it by
>>quoting the argument, but how can I explicitly tell the compiler to disable
>>such expansion?
>
>It is a feature of MinGW (because command.com does not deal with wildcards) 
>which, I guess, can't be disabled for consistency with the Unix (where the 
>shell expands wildcards and you prevent that by escaping special characters).
>
>--
>Luigi
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