[Mono-list] xbuild: Including backslashes that shouldn't get converted to forward slashes

[Matt Zinkevicius]

Sadly, after looking at the Mono codebase more, It looks that there is no way to support passing backslashes through without conversion. I'm surprised as it's not that uncommon of a need.

I've opened a defect:
https://bugzilla.xamarin.com/show_bug.cgi?id=31174

Related defect: 
https://bugzilla.xamarin.com/show_bug.cgi?id=6759

--Z

From: Zinkevicius, Matt 
Sent: Monday, June 15, 2015 1:03 PM
To: 'knocte [via Mono]'
Subject: RE: xbuild: Including backslashes that shouldn't get converted to forward slashes

You definitely want xbuild to convert them as paths in the majority of cases, but you need a way to override that behavior for exceptional circumstances. This done in most languages through escaping of some sort, I'm just not sure how to express that here.

--Z

From: knocte [via Mono] [mailto:ml-node+s1490590n4666199h66 at n4.nabble.com] 
Sent: Monday, June 15, 2015 12:36 PM
To: Zinkevicius, Matt
Subject: Re: xbuild: Including backslashes that shouldn't get converted to forward slashes

On 15/06/15 20:42, Andres G. Aragoneses wrote: 

> On 15/06/15 19:34, Matt Zinkevicius wrote: 
>> I have an msbuild/xbuild file which uses the Exec task to invoke a 
>> command 
>> line tool. The tool takes a regular expression as a parameter, which 
>> in my 
>> case contains a backslash (\) character. It seems that xbuild converts 
>> all 
>> backslashes into forward slashes, as they usually represent a directory 
>> separation character, but in this specific case I need it passed without 
>> conversion. I have tried escaping (\\) and encoding (\) but neither 
>> worked. 
>> 
>> How can this be achieved? 
> 
> It's probably an xbuild bug, as it should only try to convert the first 
> element, not the arguments. 

I take that back, since the arguments can contain file paths too. I 
guess this is a hard problem to solve. Maybe the \ -> / conversion 
should only live in the IO layer, not in the xbuild layer. 


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