[SR-Users] app_lua and lua_run parameter count

[Asgaroth]

Excellent, thanks for clarification.

To pass #!defined vars i'd need to do something like:

lua_run("some_function", '"' + VAR_1 + '"')

seeing that they need to be quoted as strings, or, is it possible to 
access #!define vars from directly within the lua function?

Another side question, is it possible to use htable from within lua, or 
is it the pv module to access $sht (sr.pv.sht)?


On 13/08/18 12:27, Daniel-Constantin Mierla wrote:
> Hello,
>
> there can be Lua function name plus up to 3 parameters, so over all, max
> 4 parameters to lua_run(...). The parameters must be given as string. An
> example with max number of params:
>
> lua_run("lua_funcx3", "$rU", "2", "$si");
>
> Cheers,
> Daniel
>
>
> On 13.08.18 12:50, Asgaroth wrote:
>> Hi All,
>>
>> Quick question with regards the lua_run function in app_lua module.
>>
>> The documentation for v5.0.x states:
>>
>> "Execute the Lua function 'func' giving params as parameters. There
>> can be up to 3 string parameters. The function must exist in the
>> script loaded at startup via parameter 'load'. Parameters can be
>> strings with pseudo-variables that are evaluated at runtime."
>>
>> Does this mean that lua_run can only have 3 parameters, or, does it
>> mean that the function within the lua script can have up to 3 parameters?
>>
>> I have a function within lua that currently needs 3 parameters, so I'm
>> hoping I can do the following:
>>
>> lua_run("some_function", "param_1", "param_2", "param_3")
>>
>> However, I'm not sure, from the documentation, if I can do this.
>>
>> On a side note, but related, can I pass defined variables/constants as
>> parameters to lua_run too, for example, something like:
>>
>> #!define VAR_1 1234
>> #!define VAR_2 hello
>>
>> lua_run("some_function", "$rd", VAR_1, VAR_2)
>>
>> Some clarification would be greatly appreciated.
>>
>> Thanks for reading.
>>
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