Mage: MTGA import fails with some promo cards (on symbols in card number)

[ldeluigi]

As you can see:

I exported the list from moxfield (MTGA format).

[JayDi85]

Card name and set code are fine (xmage must use scryfall sets and codes):
https://scryfall.com/card/prna/246p/breeding-pool

There are must be bug in mtga parser.

[ldeluigi]

I removed my hypothesis. I don't understand the cause

[JayDi85]

Bug somewhere in the search pattern:

[luziferius]

@ldeluigi All your cases contain non-numerical characters ;)

Bug somewhere in the search pattern:

I have written an MTGA parser for one of my projects, so here are some findings that you can benefit from:

Two things need to change:

• The whole collector number group should be optional, i.e. wrapped in ()?. (Including the space before the collector number)
• The collector number may contain arbitrary strings that may contain unicode symbols. It currently checks for numerical digits only, which is wrong for data from Scryfall.

First claim:
TappedOut MTGA exports may not contain the collector number. A deck for reference: https://tappedout.net/mtg-decks/yarok-throw-your-lands-in-the-air/
The MTGA export of that deck contains lines like this (shortened the list)

1 Root Maze (10E)
1 Sakura-Tribe Scout (SOK)
1 Shrieking Drake (VIS)
1 Tainted Pact (ODY)

Second claim:

• This Render Silent has collector number *96
• This Wrath of God has collector number tvdl54sb
• This Air Elemental has collector number 64★

For reference, this is my RE that parses the MTGA format and works for the given cases:
(?P<copies>\d+) (?P<name>.+) \((?P<set_code>\w+)\)( (?P<collector_number>.+))?
It uses the Python RE syntax with named groups to extract the information from the lines. It may not be useful for you directly, but could serve as a reference point

[github-actions[bot]]

Unable to retrieve information for "?P\w+))( (?P\d+"

[luziferius]

Edit: I tested it, and it seems to work. So this is invalid.

Another point: Does \p{Alnum}+ match any of -_ or accented characters?

I used google a bit, but didn’t find a definite answer, but it points towards "no".

In other words, does the parser work with this deck list?

1 Abzan Kin-Guard (FRF) 120
1 _____ (UNH) 23
1 Séance (MM3) 22
1 Déjà Vu (POR) 53

This list contains a hyphen, underscores and accented characters.

I suggest to use \S+ instead of \p{Alnum}+, which should match those.