Implement all of commentary

[mliebelt]

Take the section http://www.saremba.de/chessgml/standards/pgn/pgn-complete.htm#c5 seriously. This means the following:

• Allow the end of line comment some how.
• Allow more than one comment at any location. So the before-, after- and moveComment should be arrays.

This will avoid hassles when importing games annotated by others. E.g. studies in lichess.org have comments by some commenters, and the will just line up.

[mliebelt]

Currently, the parser works with a normalized PGN string, that does not contain any newline characters. Therefore, the end-of-line comment cannot work in that representation. The following should be possible:

1. Ensure that end-of-line comments are replaced by "real" comments (started and ending with '{' and '}').
2. Then normalize the PGN to just one line.
3. Do the normal parsing, but allow more than one comment at any location.

This should be possible.

[mliebelt]

Added wiki page to have more place to think about a possible implementation (without having too much to change ...)

[mliebelt]

The input is now more tolerant, newlines and other whitespace is allowed nearly everywhere. I had no problems in parsing the whole TWIC (> 9.000 games) without an error. So perhaps those kind of comments are not relevant any more?

[mliebelt]

The new version 1.2.0 of pgn-parser has fixed all of this. Issue is closed therefore.