Handle semicolon after colon

[wvengen]

An ingredients list like "Schokolade (Süßungsmittel: Maltit; Kakaobutter, Kakaomasse)" contains mixed separators (; and ,). Hiere the semicolon is used to indicate the end of the second-level nesting for Maltit.

[wvengen]

This is not really an issue for the loose parser, which handles each separator as equal. But if the need arises, it could be implemented there as well.

[wvengen]

This often has a meaning, in e.g.

glucosesiroop, suiker, water, gemodificeerd zetmeel, gelatine (rund), vitamine A, vitamine C, vitamine D3, vitamine E, vitamine B6, foliumzuur, vitamine B12, biotine, pantotheenzuur, kaliumjodide, zinkcitraat, magnesiumoxide, zuurteregelaar: citroenzuur; kleurstoffen: curcumine, anthocyanen (vlierbes); natuurlijke aroma’s: sinaasappel, kers, citroen; glansmiddel: carnaubawas; plantaardige olie: kokosnootolie (Cocos nucifera L.); emulgatoren: mono- en diglyceriden van vetzuren, citroenzuuresters van mono- en diglyceriden van vetzuren; maltodextrine.

Here the semicolon ends a list after a colon.

[wvengen]

Another example, where it also ends the list after a colon.

Water; plantaardige oliën (zonnebloem 15,2%, raapzaad 6%, lijnzaad 4,8%, palm, palmpit, geheel geharde palmpit, geheel geharde palm); mineraal: calciumzouten van orthofosforzuur; gemodificeerd maïszetmeel; palmstearine; emulgatoren: E471 (niet dierlijk) en zonnebloemlecithine; zout 0,2%; conserveermiddel: E202; voedingszuur: citroenzuur; antioxidant: E385; aroma; vitaminen: A, thiamine (B1), riboflavine (B2), B6, foliumzuur (B11), B12 en D2; kleurstof: carotenen

[wvengen]

Ok, I have something that seems to work ...

rule list
  # ...
  contains:( ( (ingredient ws* ',' ws*)* ingredient_coloned )+ ( ws* ingredient (ws* ',' ws* ingredient)* ) ) <ListNode>
  # ...
end

rule ingredient_coloned_inner_list
  # ...
  contains:( ingredient_coloned_simple_with_amount_and_nest ( ws* ',' ws* ingredient_coloned_simple_with_amount_and_nest )* ';' ) <ListNode>
end

[wvengen]

This seems to tackle it!
An ingredient listing like

Ingrediënten: mineraalwater, suiker, citroensap uit concentraat, aardbeiensap uit concentraat, smaakversterker: erythritol, natuurlijk aroma, zoetstof: steviolglycosiden; vitaminen: Vitamine B6, Vitamine B12.

used to put everything after ; in the notes, but it is properly parsed with this change!
update actually, this is a somewhat malformed line: some coloned ingredients end with a comma, others with a semicolon. In this instance, one can understand that smaakversterker: erythritol is one nested ingredient, and natuurlijk aroma the next.

[wvengen]

Still having trouble to parse an ingredient list with a nesting IngredientColoned ending with a non-nested ingredient.

[wvengen]

Commit a4ca35c handles most cases. Pending:

• coloned list ending with a '.' (at the end of an ingredient listing)
• list having a both coloned list ending with ';', and one ending with ','
• ';'-separated lists (instead of regular coma-separated lists)