* lisp/gnus/gnus-group.el (gnus-group-make-search-group,
gnus-group-read-ephemeral-search-group): If the query is coming in via
the old 'nnir-query-spec key, we know not to parse it.
* lisp/gnus/gnus-search.el (gnus-search-make-query-string): Check if
the query was sent in as '(query "query"), and not '(query . "query).
(gnus-search-imap-search-keys): Add x-gm-raw to imap search keys.
(gnus-search-prepare-query): If we know this query should be raw,
don't even try parsing it, as it probably won't work.
* lisp/gnus/gnus-search.el (gnus-search-server-to-engine): Because of
the way we've set up the obsolete variable alias for
`nnir-method-default-engines', we may end up with its value in
`gnus-search-default-engines'. Make the check for "old style" values
general, so we catch them no matter where they came from.
* lisp/gnus/gnus-group.el (gnus-group-make-search-group,
gnus-group-read-ephemeral-search-group): Check for and accept the old
nnir-* spec keys.
* lisp/gnus/gnus-search.el (shared-initialize): Use
generate-new-buffer instead of doing it ourselves.
(gnus-search-server-to-engine): Raise an informative error explicitly
if we can't find a search engine, rather than letting it fall through
to something less helpful.
(gnus-search-make-spec): Add `gnus-search--complete-key-data' to
`completion-at-point-functions' locally, not globally.
* lisp/gnus/gnus-search.el (gnus-search-default-engines): Change type
from a list of two-element lists, to alist. This matches nnir's old
option type, and should make transition easier.
(nnir-imap-default-search-key): Note that variable is obsolete.
(gnus-search-transform-expression): Interpret the "attachment" key as
"body" in imap searches. Allow specifying larger/smaller message size
values in KB or MB units.
(gnus-search-server-to-engine): Fix error in this function, and
clarify somewhat.
* lisp/gnus/gnus-search.el: Replace with an :initform tag on the slot
definition. `symbol-value' is necessary, otherwise the defclass macro
will treat the option as a quoted symbol.
Remove the gnus-search-gmane class and all associated methods. If
search functionality is ever resurrected, then revert this commit.
* lisp/gnus/gnus-search.el: Delete code, and remove from default value
of `gnus-search-default-engines'.
This library provides a fundamental reworking of the search
functionality previously found in nnir.el. It uses class-based search
engines to interface with external searching facilities, and a parsed
search query syntax that can search multiple engines.
* lisp/gnus/gnus-search.el: New library containing search
functionality for Gnus.
* doc/misc/gnus.texi: Document.
* lisp/gnus/gnus-group.el (gnus-group-make-search-group,
gnus-group-read-ephemeral-search-group): Remove references to nnir,
change meaning of prefix argument, change values of nnselect-function
and nnselect-args.
* lisp/gnus/nnselect.el: Replace references to nnir
(nnselect-request-article): Use gnus-search functions, and search
criteria.
(nnselect-request-thread, nnselect-search-thread): Use gnus-search
thread search.
(gnus-summary-make-search-group): Switch to use gnus-search function
and arguments.
* test/lisp/gnus/search-tests.el: Tests for new functionality.
