[luatex] \luaescapestring and \escapechar

[Hans Hagen]

On 5/17/2014 6:14 PM, Heiko Oberdiek wrote:
> On 17.05.2014 13:48, Hans Hagen wrote:
>> On 5/17/2014 4:16 AM, Heiko Oberdiek wrote:
>>
>>> => Two bugs:
>>>      * \escapechar=0, then the output of the escape char should
>>>         by character zero (^^@) instead of an unexpected end of string
>>>         that kills characters behind.
>>
>> I tested 0 and got a nul character so that might also depend on other
>> issues (Lua can handle them in most cases unless it gets fed into som ec
>> helper that sees nul as end-of-string and there is nothing we can do
>> about that: 0 = 0 ... no funny ^^ stuff in the escape).
>
> With `\escapechar=0` it is not possible to get the nul byte in the
> string like the other positive values?

imo it should be, although one can never be sure if the receiving end is 
8 bit clean or sees <nul> as something special

Hans

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