I would like to be able to read file with the following format:
  - '|' separated 
  - Unquoted.. eg. \" can appear in the strings, in particular 
at the beginning, and not at the end.
I need to set a nul quote character, but this doesn't currently work.
The following is a workaround, where a '.' is unlikely to appear in first
character of the sting.
  (csv/read-csv in-file :separator \| :quote .))
I would like to be able to be explicit:
  (csv/read-csv in-file :separator \| :quote nul))