mboxShell

The Mac app moved to a new domain

• Documentation only: both READMEs and both manuals still pointed at mboxviewer.net, the former domain of the macOS app. They now name mboxviewerpro.com, and so does the repository's own project link.

Export a selection as a new mailbox

• export --format mbox writes the selected messages into a single new MBOX. Until now a selection could leave as .eml, CSV, text or HTML — a folder of files — but never as a mailbox again, so there was no way to hand over part of an archive in the format it arrived in. Together with --query that is the whole delivery flow: filter a large dump (a Google Vault export, a Takeout archive) down to the messages that actually belong in the handover, and produce a mailbox holding only those.
• A message read out of an MBOX is copied byte for byte, keeping its own From envelope line and whatever quoting the source used: rewriting the envelope could only corrupt an archive that was already valid. One with no envelope line — because it came from an EML — gets one synthesized, plus > quoting of body lines that start with From, without which the result is not a readable mailbox. The output is committed by temp file and rename, like the merge, so a failure halfway through never leaves a half-written mailbox under the name you asked for, and the source file is never touched. 7 new tests (241 in total).

Search queries that mean what you wrote

• OR now has a precedence. It used to be a flag on the whole query, so a single OR anywhere turned every term into an alternative: from:alice OR from:bob subject:invoice did not mean "either sender, about invoices" — it returned everything from alice, everything from bob and everything whose subject said invoice, whoever sent it. On a 6,787-message mailbox that is the difference between 49 hits and 2,102. A query is now a list of AND-ed groups, each group a list of OR-ed terms, and OR is what puts two terms in the same group: a OR b c reads as (a OR b) AND c. There are still no parentheses.
• after:X before:Y was impossible to express. The query held a single date filter, so the second one silently replaced the first and only before: survived — half of what you typed was dropped without a word. Date and size filters now accumulate, which also turns size:>1mb size:<5mb into a real band.
• after: now includes its own day and before: still excludes its own, so after:2024-01-01 before:2025-01-01 is exactly the year 2024 — the half-open reading Gmail's operators use, and consistent with date:A..B, which was already inclusive. Both manuals and both READMEs document the precedence rule and the date bounds. 23 new tests (234 in total).