Re: [NTG-context] expand date from CSV file

18 Dec 2014


      Hi Pablo,
I am sending still slightly modified version (use local variables and 
better typographic output).
It use of much variables, but at least it is clear how it works. For 
solution occurred me to use parsing function that I have been defined in 
the library, so that it can be successfully used.

Sincerely
Jaroslav Hajtmar


\usemodule[scancsv]

\def\ddmmyyyy#1#2#3{% #1 - date, #2 - old separator, #3 - new separator
\startlua
     local parsedate=thirddata.scancsv.ParseCSVLine('#1','#2');
     local day=tonumber(parsedate[1]);
     local month=tonumber(parsedate[2]);
     local year=tonumber(parsedate[3]);
     if (year<2000) then year=year+2000 end;
     tex.print(day..'#3'..month..'#3'..year);
\stoplua
}

\unexpanded\def\lineaction{
     \Name\ arrived on \ddmmyyyy{\Date}{/}{.\\,} \\
}


%     Name;Date
%     ME;11/10/14
%     You;05/02/14
%     He;15/02/2014
%     She;03/03/12
%     It;03/03/14

\setheader
  \setsep{;}
  \setfiletoscan{mail.csv}

\starttext
    \filelineaction
\stoptext


Dne 18.12.2014 9:39, Jaroslav Hajtmar napsal(a):
...
Hi Pablo
Here is a quick solution. However, it not treat the incorrect input 
data, ie it requires, however, correct input, otherwise it will 
collapse ...
Jaroslav Hajtmar
\usemodule[scancsv]
\def\ddmmyyyy#1#2#3{% #1 - date, #2 - old separator, #3 - new separator
\startlua
    parsedate=thirddata.scancsv.ParseCSVLine('#1','#2');
    day=tonumber(parsedate[1]);
    month=tonumber(parsedate[2]);
    year=tonumber(parsedate[3]);
    if (year<2000) then year=year+2000 end;
    tex.print(day..'#3'..month..'#3'..year);
\stoplua
}
\unexpanded\def\lineaction{
    \Name\ arrived on \ddmmyyyy{\Date}{/}{.} \\
}
%     Name;Date
%     ME;11/10/14
%     You;05/02/14
%     He;15/02/2014
%     She;03/03/12
%     It;03/03/14
\setheader
 \setsep{;}
 \setfiletoscan{mail.csv}
\starttext
   \filelineaction
\stoptext
Dne 17.12.2014 22:20, Pablo Rodriguez napsal(a):
...
Dear list,
I have the following sample:
\usemodule[scancsv]
\unexpanded\def\lineaction{
     \Name\ arrived on \Date\\
     }
\setheader
     \setsep{;}
     \setfiletoscan{mail.csv}
\starttext
         \filelineaction
     \stoptext
that reads data from mail.csv:
Name;Date
     ME;11/10/14
     You;05/02/14
     He;15/02/2014
     She;03/03/12
     It;03/03/14
My question is simple (and not related to CSV data import): how can I
define a command (ConTeXt or Lua) that changes date format from DD/MM/YY
to DD/MM/YYYY when required?
Many thanks for your help,
Pablo
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