Customize PICA::Writer::Plus format

[nichtich]

Some use \N{LINE FEED} and some use \N{INFORMATION SEPARATOR THREE} as record separator, so this should be configurable.

[nichtich]

PICA::Record contains several test files in various dialects of PICA+

[jorol]

Some of these examples contain only a single record, so I'm not sure, how multiple records are separated.

Can we categorize the different dialects?

• Plus (/t/files/dumpformat)
  subfield separator: \N{INFORMATION SEPARATOR ONE}
  field separator: \N{INFORMATION SEPARATOR TWO}
  record separator: \N{INFORMATION SEPARATOR THREE} or \N{LINE FEED}
• Plain (/t/files/graveyard.pica, /t/files/minimal.pica)
  subfield separator: \N{DOLLAR SIGN}
  field separator: \N{LINE FEED}
  record separator: \N{LINE FEED}\s*\N{LINE FEED} (empty line)
• ??? ((/t/files/kochbuch.pica)
  subfield separator: \N{INFORMATION SEPARATOR ONE}
  field separator: \N{LINE FEED}
  record separator: ?

Should we implement different Parser/Writer (Plus, Plain, ...) for each dialect?

[nichtich]

BTW in addition to a general PICA exporter/importer one could also define modules for each type (e.g. Catmandu::Importer::PICAPlus equal to type=picaplus) for less typing.

[nichtich]

PICA::Data 0.28 add "binary" PICA with INFORMATION SEPARATOR THREE as record separator. I checked all examples from https://metacpan.org/source/VOJ/PICA-Record-0.584/t/files and could parse with the existing dialects (XML, plain, plus, binary) all but: dumpformat, winibwsave.example, winibwsave.example2 and winibwsave.example3. Let's keep this issue open unless these formats have dealed with.

[jorol]

Added PICA::Writer::Generic for custom field, subfield and record separators.

ToDo:

• Add PICA::Writer::Generic to Catmandu::Exporter::PICA

• PICA::Parser::WinIBW

• PICA::Writer::WinIBW

[cKlee]

PICA::Writer::WinIBW ?? What should this be good for?

[jorol]

Good question;-) I delete this until someone has a use case for this.

[nichtich]

@cKlee @jorol can I close this issue? PICA::Data supports all variants listed at http://format.gbv.de/pica (only PICA JSON could be added to simplify access to the short form without record => wrapping element if this siplifies anyones use cases)