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
> >___________________________________________________________________________________
> >
> >If your question is of interest to others as well, please add an
> >entry to the Wiki!
> >
> >maillist : ntg-context@ntg.nl /
> >http://www.ntg.nl/mailman/listinfo/ntg-context
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> >___________________________________________________________________________________
> >
> >
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the
> Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : http://foundry.supelec.fr/projects/contextrev/
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> ___________________________________________________________________________________
--
Khaled Hosny
Arabic localiser and member of Arabeyes.org team
Free font developer
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
