First, burying changes:
- unburying now happens on day rollover, or when manually unburying from
overview screen
- burying is not performed when returning to deck list, or when closing
collection, so burying now must mark cards as modified to ensure sync
consistent
- because they're no longer temporary to a session, make sure we exclude them
in filtered decks in -is:suspended
Sibling spacing changes:
- core behaviour now based on automatically burying related cards when we
answer a card
- applies to reviews, optionally to new cards, and never to cards in the
learning queue (partly because we can't suspend/bury cards in that queue at
the moment)
- this means spacing works consistently in filtered decks now, works on
reviews even when user is late to review, and provides better separation of
new cards
- if burying new cards disabled, we just discard them from the current queue.
an option to set due=ord*space+due would be nicer, but would require
changing a lot of code and is more appropriate for a future major version
change. discarding from queue suffers from the same issue as the new card
cycling in that queue rebuilds may cause cards to be shown close together,
so the default burying behaviour is preferable
- refer to them as 'related cards' rather than 'siblings'
These changes don't require any changes to the database format, so they
should hopefully coexist with older clients without issue.
- add writeData() so we can add files to media folder without having to
save them in an intermediate folder first
- we were stripping or checking for illegal filename characters in
multiple places; factor those checks out into separate routines
- add * to invalid char list, and disallow both forward and backslash
- remove size checks in syncAdd(); is handled server-side
This was what we originally had in templates in Anki 1. It was changed to
utf8x at one point, then we discovered that some LaTeX installs didn't have
that package so it was removed, when we should have reverted to utf8 instead.
This fixes things like umlauts but does not allow display of things like
Japanese text.
