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From: Andrey Repin <anrdaemon@yandex.ru>
To: Stephen Provine <stephpr@microsoft.com>, cygwin@cygwin.com
Subject: Re: Command line processing in dcrt0.cc does not match Microsoft parsing rules
Date: Sat, 07 Sep 2019 12:05:00 -0000	[thread overview]
Message-ID: <135817606.20190906233445@yandex.ru> (raw)
In-Reply-To: <MWHPR21MB0845282E7582DC95ADF0F140B9BB0@MWHPR21MB0845.namprd21.prod.outlook.com>

Greetings, Stephen Provine!

> On 2019-09-04 23:29, Brian Inglis wrote:
>> As standard on Unix systems, just add another level of quoting for each level of
>> interpretation, as bash will process that command line, then bash will process
>> the script command line.

> My mistake - I'm very aware of the quoting rules, yet in my test script for this
> scenario I forgot to quote the arguments. However, if POSIX rules are being
> implemented, there is still something I didn't expect. Here's my bash script:

> #!/bin/bash
> echo "$1"
> echo "$2" 
> echo "$3"

> And I invoke it like this from a Windows command prompt:

> C:\> bash -x script.sh foo bar\"baz bat
> + echo foo
> foo
> + echo 'bar\baz bat'
> bar\baz bat
> + echo ''

> Not expected. Called from within Cygwin, the behavior is correct:

Again, fully expected.

> $ bash -x script.sh foo bar\"baz bat
> + echo foo
> foo
> + echo 'bar"baz'
> bar"baz
> + echo bat
> bat

> Can you explain this difference?

CMD escape character is ^, not \

> The reason I ask is that if this worked,
> the way Go constructs the command line string would be just fine.

No.


-- 
With best regards,
Andrey Repin
Friday, September 6, 2019 23:33:46

Sorry for my terrible english...


--
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WARNING: multiple messages have this Message-ID
From: Andrey Repin <anrdaemon@yandex.ru>
To: Stephen Provine <stephpr@microsoft.com>, cygwin@cygwin.com
Subject: Re: Command line processing in dcrt0.cc does not match Microsoft parsing rules
Date: Sat, 07 Sep 2019 12:20:00 -0000	[thread overview]
Message-ID: <135817606.20190906233445@yandex.ru> (raw)
Message-ID: <20190907122000.skla7GbBkxEr95QfQKCb-U-wKXslm1c2jQX7uGxnPMQ@z> (raw)
In-Reply-To: <MWHPR21MB0845282E7582DC95ADF0F140B9BB0@MWHPR21MB0845.namprd21.prod.outlook.com>

Greetings, Stephen Provine!

> On 2019-09-04 23:29, Brian Inglis wrote:
>> As standard on Unix systems, just add another level of quoting for each level of
>> interpretation, as bash will process that command line, then bash will process
>> the script command line.

> My mistake - I'm very aware of the quoting rules, yet in my test script for this
> scenario I forgot to quote the arguments. However, if POSIX rules are being
> implemented, there is still something I didn't expect. Here's my bash script:

> #!/bin/bash
> echo "$1"
> echo "$2" 
> echo "$3"

> And I invoke it like this from a Windows command prompt:

> C:\> bash -x script.sh foo bar\"baz bat
> + echo foo
> foo
> + echo 'bar\baz bat'
> bar\baz bat
> + echo ''

> Not expected. Called from within Cygwin, the behavior is correct:

Again, fully expected.

> $ bash -x script.sh foo bar\"baz bat
> + echo foo
> foo
> + echo 'bar"baz'
> bar"baz
> + echo bat
> bat

> Can you explain this difference?

CMD escape character is ^, not \

> The reason I ask is that if this worked,
> the way Go constructs the command line string would be just fine.

No.


-- 
With best regards,
Andrey Repin
Friday, September 6, 2019 23:33:46

Sorry for my terrible english...


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

  parent reply	other threads:[~2019-09-07 12:05 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-30 19:31 Stephen Provine via cygwin
2019-08-30 20:53 ` Brian Inglis
2019-08-30 21:21 ` Stephen Provine via cygwin
2019-08-31  4:18   ` Brian Inglis
2019-09-03 16:38   ` Stephen Provine via cygwin
2019-09-04 16:20     ` Brian Inglis
2019-09-04 23:46     ` Stephen Provine via cygwin
2019-09-05  5:29       ` Brian Inglis
2019-09-05 18:31       ` Stephen Provine via cygwin
2019-09-05 19:05         ` Eric Blake
2019-09-05 22:01         ` Stephen Provine via cygwin
2019-09-05 22:46           ` Eric Blake
2019-09-05 23:45           ` Stephen Provine via cygwin
2019-09-06  0:46             ` Steven Penny
2019-09-06  1:26             ` Eric Blake
2019-09-06  6:20             ` Stephen Provine via cygwin
2019-09-07 21:50           ` Brian Inglis
2019-09-07 12:05         ` Andrey Repin [this message]
2019-09-07 12:20           ` Andrey Repin
2019-09-09 16:47           ` Stephen Provine via cygwin
2019-09-09 16:57             ` Stephen Provine via cygwin
2019-09-09 17:11               ` Eric Blake
2019-09-09 19:05                 ` Duncan Roe
2019-09-09 19:44                   ` Andrey Repin
2019-09-10 12:43                   ` Brian Inglis

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