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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