Hi!

I run into a problem reading in certain CSV files. I nailed it down
to the following example:

\starttext
\startluacode
  local mycsvsplitter = utilities.parsers.rfc4180splitter{
    separator = ",",
    quote = '"'}

  -- fails with
  -- token call, execute: [ctxlua]:11: attempt to index a nil value (local 
'tablerows')
  -- local mycsv = io.loaddata("A.csv")

  -- works
  local mycsv = io.loaddata("B.csv")

  local tablerows = mycsvsplitter(mycsv)
  context(tablerows[1][1])
  context(" ")
  context(tablerows[1][2])
\stopluacode
\stoptext

The compilation fails with

  token call, execute: [ctxlua]:11: attempt to index a nil value (local 
'tablerows')

The two files are attached. The only difference is that:

  A.csv: Unicode text, UTF-8 (with BOM) text
  B.csv: ASCII text

Somehow the rfc4180splitter chokes on UTF-8 with BOM files.
io.loaddata succeeds as far as I can tell. Is there a way to read in
those files without pre-processing them?

Marco

version: 2024.09.17 13:15
"Date","ID"
"Date","ID"
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the 
Wiki!

maillist : ntg-context@ntg.nl / 
https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________

Reply via email to