[fpc-pascal] Executing external processes and codepages

[Jonas Maebe]

Michael Van Canneyt wrote on Wed, 11 May 2016:

> On Wed, 11 May 2016, Jonas Maebe wrote:
>
>>
>> Michael Van Canneyt wrote on Wed, 11 May 2016:
>>
>>> On Wed, 11 May 2016, Marco van de Voort wrote:
>>>
>>>> I don't like that. The 3.x idea is to get rid of manual conversions and
>>>> hack-and-convert-it-as-you-go encoding management, not just  
>>>> rebadge the old
>>>> practices to rawbytestring.
>>>
>>> You may not like it, but there is simply no other choice:
>>>
>>> Since you don't know what the receiving program does with the receives
>>> arguments, all attempts to guess it are erroneous by definition.
>>
>> It will either interpret them according to the code page specified  
>> by the environment, or not perform any interpretation at all. In  
>> both cases, converting the arguments to the code page of the  
>> environment is the right thing to do.
>
> And in the case it makes an assumption of the code page, regardless of
> environment variables ?
>
> (don't say that doesn't happen. It does, I know a programmer that does so)

The caller can work around such bugs by either
a) using the pchar version of fpexec, or
b) specifying the code page that this target program uses in the  
environment used to invoke it


Jonas