Re: Lua in LuaLaTeX is diferent??

[Jaroslav Hajtmar <hajtmar@gyza.cz>]

Thanks very much.
It is very unpleasant findings, but, it explains everything.
Can be detected using Lua whether application runs under LuaLaTeX or 
LuaPlain and then load the library?
How can I retrieve LuaLib? Where can I get more information? I did some 
Googling but without success.
Thanx Jaroslav

>
>
> Dne 6.6.2010 4:46, Khaled Hosny napsal(a):
>> On Sun, Jun 06, 2010 at 01:35:23AM +0200, Jaroslav Hajtmar wrote:
>>> Hi,
>>>
>>> I am sending examples of functions:
>>>
>>> The first function is functional in ConTeXt MKIV even LuaLaTeX.
>>>
>>> -- Global variables for setup in library (it be used when glob. vars
>>> Sep, Ld, Rd is not setting in main aplication):
>>> UserCSVSeparator=';'
>>> UserCSVLeftDelimiter=''
>>> UserCSVRightDelimiter=''
>>>
>>>
>>>
>>>
>>> function ParseCSVdata(s)
>>>      local Sep = (Sep == nil) and UserCSVSeparator or Sep
>>>      local Ld = (Ld == nil) and UserCSVLeftDelimiter or Ld
>>>      local Rd = (Rd == nil) and UserCSVRightDelimiter or Rd
>>>      if Ld ~= '' or Rd ~= '' then
>>>         local s=string.sub(s, string.find(s, Ld)+1, string.find(s,
>>> Rd,-1)-1)
>>>      end
>>>      local fieldsep=tostring(Rd..Sep..Ld)
>>>      local result = {}
>>>    local from  = 1
>>>    local sep_from, sep_to = string.find( s, fieldsep, from  )
>>>    while sep_from do
>>>      table.insert( result, string.sub( s, from , sep_from-1 ) )
>>>      from  = sep_to + 1
>>>      sep_from, sep_to = string.find( s, fieldsep, from  )
>>>    end
>>>    table.insert( result, string.sub( s, from  ) )
>>>    return result
>>> end
>>>
>>>
>>> The second is more universal, but it only works in ConTeXt MKIV.
>>> LuaLaTeX report error:  "attempt to call field 'split' (a nil value) 
>>> ... ."
>>>
>>> function ParseCSVdata(string2parse, separator, leftdelimiter,
>>> rightdelimiter)
>>>      Sep = (Sep == nil) and UserCSVSeparator or Sep
>>>      Ld = (Ld == nil) and UserCSVLeftDelimiter or Ld
>>>      Rd = (Rd == nil) and UserCSVRightDelimiter or Rd
>>>    local separator = (separator == nil) and Sep or separator
>>>      local leftdelimiter = (leftdelimiter == nil) and Ld or 
>>> leftdelimiter
>>>      local rightdelimiter = (rightdelimiter == nil) and Rd or 
>>> rightdelimiter
>>>      local result={}
>>>          if leftdelimiter ~= '' and rightdelimiter ~= '' then
>>>              string.gsub(string2parse,
>>> leftdelimiter.."(.-)"..rightdelimiter, function(a)
>>> table.insert(result,a) end )
>>>          else
>>>            result=string.split(string2parse,separator)
>>>          end
>>>      return result
>>> end
>>>
>>>
>>> I would like to benefit from the second function, but I want the
>>> application was applicable even LuaLaTeX
>> You need the lualibs package, which imports some of the extended lua
>> librarires from ConTeXt, since string.split() is not a standad lua
>> function.
>>
>> Regards,
>>   Khaled
>>
>>
>>> Thanx Jaroslav
>>>
>>>
>>>
>>>
>>> Dne 5.6.2010 22:19, Jaroslav Hajtmar napsal(a):
>>>> Hi,
>>>> I did a Lua application for ConTeXt, and now I wanted to adapt it
>>>> to work even LuaLaTeX.
>>>> On what needs to be careful? Compiling  by LuaLaTeX specific
>>>> messages appear as if the Lua in LuaLaTeX didnt know some Lua
>>>> commands (i.e. split, find .... ).
>>>>
>>>> On what needs to be careful generaly when programming applications
>>>> for LuaLaTeX?
>>>>
>>>> Thanx Jaroslav
>>>> ___________________________________________________________________________________ 
>>>>
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>>>>
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>

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