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mu-flags: use implied unread flag

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and update tests.

Fixes #2409
This commit is contained in:
Dirk-Jan C. Binnema
2023-01-14 18:07:08 +02:00
parent 6979a66630
commit 86a641f748
2 changed files with 37 additions and 6 deletions
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26
lib/message/mu-flags.hh
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@ -1,5 +1,5 @@
/*
** Copyright (C) 2022 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
** Copyright (C) 2022-2023 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
**
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
@ -225,10 +225,27 @@ flag_info(std::string_view name)
return Nothing;
}
/**
* 'unread' is a pseudo-flag that means 'new or not seen'
*
* @param flags
*
* @return flags with unread added or removed.
*/
constexpr Flags
imply_unread(Flags flags)
{
/* unread is a pseudo flag equivalent to 'new or not seen' */
if (any_of(flags & Flags::New) || none_of(flags & Flags::Seen))
return flags | Flags::Unread;
else
return flags & ~Flags::Unread;
}
/**
* There are two string-based expression types for flags:
* 1) 'absolute': replace the existing flags
* 2_ 'delta' : flags as a delta of existing flags.
* 2) 'delta' : flags as a delta of existing flags.
*/
/**
@ -253,7 +270,7 @@ flags_from_absolute_expr(std::string_view expr, bool ignore_invalid = false)
flags |= info->flag;
}
return flags;
return imply_unread(flags);
}
/**
@ -296,7 +313,8 @@ flags_from_delta_expr(std::string_view expr, Flags flags,
}
}
return flags;
return imply_unread(flags);
}
/**