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mu-flags: use implied unread flag 

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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17
lib/message/mu-flags.cc
View File

@ -105,10 +105,13 @@ test_flags_from_expr()
(Flags::Flagged | Flags::Unread |
Flags::HasAttachment | Flags::MailingList));
/* note: unread is a special flag, _implied_ from "new or not seen" */
static_assert(flags_from_absolute_expr("N").value() == (Flags::New|Flags::Unread));
static_assert(!flags_from_absolute_expr("DRT?"));
static_assert(flags_from_absolute_expr("DRT?", true/*ignore invalid*/).value() ==
(Flags::Draft | Flags::Replied |
Flags::Trashed));
Flags::Trashed | Flags::Unread));
static_assert(flags_from_absolute_expr("DFPNxulabcdef", true/*ignore invalid*/).value() ==
(Flags::Draft|Flags::Flagged|Flags::Passed|
Flags::New | Flags::Encrypted |
@ -126,6 +129,16 @@ test_flags_from_delta_expr()
static_assert(flags_from_delta_expr(
"+S-u-N", Flags::New|Flags::Unread).value() ==
Flags::Seen);
/* note: unread is a special flag, _implied_ from "new or not seen" */
static_assert(flags_from_delta_expr(
"+S-N", Flags::New|Flags::Unread).value() ==
Flags::Seen);
static_assert(flags_from_delta_expr(
"-S", Flags::Seen).value() ==
Flags::Unread);
static_assert(flags_from_delta_expr("+R+P-F", Flags::Seen).value() ==
(Flags::Seen|Flags::Passed|Flags::Replied));
/* '-B' is invalid */
@ -134,7 +147,7 @@ test_flags_from_delta_expr()
static_assert(flags_from_delta_expr("+R+P-B", Flags::Seen, true) ==
(Flags::Replied|Flags::Passed|Flags::Seen));
static_assert(flags_from_delta_expr("+F+T-S", Flags::None, true).value() ==
(Flags::Flagged|Flags::Trashed));
(Flags::Flagged|Flags::Trashed|Flags::Unread));
}
/*

26
lib/message/mu-flags.hh
View File

@ -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);
}
/**