* lisp/erc/erc-backend.el (erc-server-connected): Revise doc string.
(erc-server-reconnect, erc-server-JOIN): Reuse original ID param from
the first connection when calling `erc-open'.
(erc-server-NICK): Apply same name generation process used by
`erc-open'; except here, do so for the purpose of "re-nicking".
Update network identifier and maybe buffer names after a user's own
nick changes.
* lisp/erc/erc-networks.el (erc-networks--id, erc-networks--id-fixed,
erc-networks--id-qualifying): Define new set of structs to contain all
info relevant to specifying a unique identifier for a network context.
Add a new variable `erc-networks--id' to store a local reference to a
`erc-networks--id' object, shared among all buffers in a logical
session.
(erc-networks--id-given, erc-networks--id-create,
erc-networks--id-on-connect, erc-networks--id--equal-p,
erc-networks--id-qualifying-init-parts,
erc-networks--id-qualifying-init-symbol,
erc-networks--id-qualifying-grow-id,
erc-networks--id-qualifying-reset-id,
erc-networks--id-qualifying-prefix-length,
erc-networks--id-qualifying-update, erc-networks--id-reload,
erc-networks--id-ensure-comparable, erc-networks--id-sort-buffers):
Add new functions to support management of `erc-networks--id' struct
instances.
(erc-networks--id-sep): New variable for to help when formatting
buffer names.
(erc-obsolete-var): Define new generic context rewriter.
(erc-networks-shrink-ids-and-buffer-names,
erc-networks--refresh-buffer-names,
erc-networks--shrink-ids-and-buffer-names-any): Add functions to
reassess all network IDs and shrink them if necessary along with
affected buffer names. Also add function to rename buffers so that
their names are unique. Register these on all three of ERC's
kill-buffer hooks because an orphaned target buffer is enough to keep
its session alive.
(erc-networks-rename-surviving-target-buffer): Add new function that
renames a target buffer when it becomes the sole bearer of a name
based on a target that has become unique across all sessions and, in
most cases, all networks. IOW, remove the @NETWORK-ID suffix from the
last remaining channel or query buffer after its namesakes have all
been killed off. Register this function with ERC's target-related
kill-buffer hooks.
(erc-networks--examine-targets): Add new utility function that visits
all ERC buffers and runs callbacks when a buffer-name collision is
encountered.
(erc-networks--qualified-sep): Add constant to hold separator between
target and suffix.
(erc-networks--construct-target-buffer-name,
erc-networks--ensure-unique-target-buffer-name,
erc-networks--ensure-unique-server-buffer-name,
erc-networks--maybe-update-buffer-name): Add helpers to support
`erc-networks--reconcile-buffer-names' and friends.
(erc-networks--reconcile-buffer-names): Add new buffer-naming strategy
function and helper for `erc-generate-new-buffer-name' that only run
in target buffers.
(erc-determine-network, erc-networks--determine): Deprecate former and
partially replace with latter, which demotes RPL_ISUPPORT-derived
NETWORK name to fallback in favor of known `erc-networks-alist'
members as part of shift to network-based connection-identity policy.
Return sentinel on failure. Expect `erc-server-announced-name' to be
set, and signal when it's not.
(erc-networks--name-missing-sentinel): Value returned when new
function `erc-networks--determine' fails to find network name. The
rationale for not making this customizable is that the value signifies
the pathological case where a user of an uncommon IRC setup has not
yet set a mapping from announced- to network name. And the chances of
there being multiple unknown networks is low.
(erc-set-network-name, erc-networks--set-name): Deprecate former and
partially replace with latter. Ding with helpful message, and don't
set `erc-network' when network name is not found.
(erc-networks--ensure-announced): Add new fallback function to ensure
`erc-server-announced-name' is set. Register with post-MOTD hooks.
(erc-unset-network-name): Deprecate function unused internally.
(erc-networks--insert-transplanted-content,
erc-networks--reclaim-orphaned-target-buffers,
erc-networks--copy-over-server-buffer-contents,
erc--update-server-identity): Add helpers for
`erc-networks--rename-server-buffer'. The first re-associates all
existing target buffers that ought to be owned by the new server
process. The second grabs buffer text from an old, dead server buffer
before killing it. It then inserts that text above everything in the
current, replacement server buffer. The other two massage the IDs of
related sessions, possibly renaming them as well. They may also
uniquify the current session's network ID.
(erc-networks--init-identity): Add new function to perform one-time
session-related setup. This could be combined with
`erc-set-network-name'.
(erc-networks--rename-server-buffer): Add new function to replace
`erc-unset-network-name' as default `erc-disconnected-hook' member;
renames server buffers once network is discovered; added to/removed
from `erc-after-connect' hook on `erc-networks' minor mode.
(erc-networks--bouncer-targets): Add constant to hold target symbols
of well known bouncer-configuration bots.
(erc-networks-on-MOTD-end): Add primary network-context handler to run
on 376/422 functions, just before logical connection is officially
established.
(erc-networks-enable, erc-networks-mode): Register main network-setup
handler with 376/422 hooks.
* lisp/erc/erc.el (erc-rename-buffers): Change this option's default
to t, remove the only instance where it's actually used, and make it
an obsolete variable.
(erc-reuse-buffers): Make this an obsolete variable, but take pains to
ensure its pre-28.1 behavior is preserved. That is, undo the
regression involving unwanted automatic reassociation of channel
buffers during joins, which arrived in ERC 5.4 and effectively
inverted the meaning of this variable, when nil, for channel buffers,
all without accompanying documentation or announcement.
(erc-generate-new-buffer-name): Replace current policy of appending a
slash and the invocation host name. Favor instead temporary names for
server buffers and network-based uniquifying suffixes for channels and
query buffers. Fall back to the TCP host:port<n> convention when
necessary. Accept additional optional params after the others.
(erc-get-buffer-create): Don't generate a new name when reconnecting,
just return the same buffer. `erc-open' starts from a clean slate
anyway, so this just keeps things simple. Also add optional params.
(erc-open): Add new ID param to for a network identifier explicitly
passed to an entry-point command. This is stored in the `given' slot
of the `erc-network--id' object. Also initialize the latter in new
connections and otherwise copy it over. As part of the push to recast
erc-networks.el as an essential library, set `erc-network' explicitly,
when known, rather than via hooks.
(erc, erc-tls): Add new ID keyword parameter and pass it to
`erc-open'.
(erc-log-irc-protocol): Use `erc--network-id' instead of the function
`erc-network' to determine preferred peer name.
(erc-format-target-and/or-network): This is called frequently from
mode-line updates, so renaming buffers here is not ideal. Instead, do
so in `erc-networks--rename-server-buffer'.
(erc-kill-server-hook): Add `erc-networks-shrink-ids-and-buffer-names'
as default member.
(erc-kill-channel-hook, erc-kill-buffer-hook): Add
`erc-networks-shrink-ids-and-buffer-names' and
`erc-networks-rename-surviving-target-buffer' as default member.
* test/lisp/erc/erc-tests.el (erc-log-irc-protocol): Use network-ID
focused internal API.
* test/lisp/erc/erc-networks-tests.el: Add new file that includes
tests for the above network-ID focused functions.
See bug#48598 for background on all of the above.
* test/lisp/erc/resources/erc-d/erc-d.el: New file.
* test/lisp/erc/resources/erc-d/erc-d-u.el: New file.
* test/lisp/erc/resources/erc-d/erc-d-i.el: New file.
* test/lisp/erc/resources/erc-d/erc-d-t.el: New file.
* test/lisp/erc/resources/erc-d/erc-d-tests.el: New file.
* test/lisp/erc/erc-scenarios-internal.el: New file to serve as
discoverable proxy for erc-d-tests.
* lisp/erc/erc.el (erc-default-recipients, erc-default-target):
Explain that the variable has fallen out of favor and that the
function may have been used historically by third-party code for
detecting channel subscription status, even though that's never been
the case internally since at least the adoption of version control.
Recommend newer alternatives.
(erc--current-buffer-joined-p): Add possibly temporary predicate for
detecting whether a buffer's target is a joined channel. The existing
means are inconsistent, as discussed in bug#48598. The mere fact that
they are disparate is unfriendly to new contributors. For example, in
the function `erc-autojoin-channels', the `process-status' of the
`erc-server-process' is used to detect whether a buffer needs joining.
That's fine in that specific situation, but it won't work elsewhere.
And neither will checking whether `erc-default-target' is nil, so
long as `erc-delete-default-channel' and friends remain in play.
(erc-add-default-channel, erc-delete-default-channel, erc-add-query,
erc-delete-query): Deprecate these helpers, which rely on an unused
usage variant of `erc-default-recipients'.
* lisp/erc/erc-services.el: remove stray `erc-default-recipients'
declaration.
* lisp/erc/erc-backend.el (erc-server-NICK, erc-server-JOIN,
erc-server-KICK, erc-server-PART): wrap deprecated helpers to suppress
warnings.
* lisp/erc/erc-join.el (erc-autojoin-channels): Use helper to detect
whether a buffer needs joining. Prefer this to server liveliness, as
explained above.
* lisp/erc/erc.el (erc--target, erc--target-channel,
erc--target-channel-local): Add new structs to hold info on a buffer's
target; stored in a local variable of the same name.
(erc--target-from-string): Add standalone constructor for
`erc--target'.
(erc--default-target): Add temporary internal getter to ease
transition to `erc--target' everywhere.
(erc-open): Create above items in non-server buffers.
* lisp/erc/erc-backend.el (erc-server-NICK): Recreate `erc--target'
when necessary.
* lisp/erc/erc.el (erc--valid-local-channel-p): Add internal helper to
determine whether an IRC channel is local according to its network's
CHANTYPES ISUPPORT parameter.
* test/lisp/erc/erc-tests.el (erc--valid-local-channel-p): Add test
for this helper.
* lisp/erc/erc.el (erc-login): Also known as connection passwords,
these are sent as the sole arg to the PASS command, which is nowadays
often overloaded with other semantics imposed by various entities to
convey things like bouncer or services creds.
* lisp/erc/erc.el (erc-downcase, erc--casemapping-rfc1459-strict,
erc--casemapping-rfc1459): Add new translation tables for the latter
two mappings and use them in `erc-downcase'.
* test/lisp/erc/erc-tests.el: Add test for `erc-downcase'.
* lisp/erc/erc-backend (erc--isupport-params): Add new variable to
hold a hashmap of parsed `erc-server-parameters' in a more useful
format. But keep `erc-server-parameters' around for public use. We
currently lack dedicated local variables for certain discovered IRC
session properties, such as what prefix characters are supported for
channels, etc. And the truth of this needs querying many times per
second at various points. As such, caching here seems justified but
can be easily removed if deemed otherwise because all ingredients are
internal.
(erc--parse-isupport-value): Add helper function that parses an
ISUPPORT value and returns the component parts with backslash-x hex
escapes removed. This can probably use some streamlining.
(erc--with-memoization): Add compat alias for use in internal ISUPPORT
getter. Should be moved to `erc-compat.el' when that library is fully
reincorporated.
(erc--get-isupport-entry): Add internal getter to look up ISUPPORT
items.
(erc-server-005): Treat `erc-server-response' "command args" field as
read-only. Previously, this field was set to nil after processing,
which was unhelpful to other parts of the library. Also call above
mentioned helper to parse values. And add some bookkeeping to handle
negation.
* lisp/erc/erc-capab.el (erc-capab-identify-send-messages): Use
internal ISUPPORT getter.
* lisp/erc/erc.el (erc-cmd-NICK, erc-parse-prefix,
erc-nickname-in-use): Use internal ISUPPORT getter.
* test/lisp/erc/erc-tests.el: Add tests for the above mentioned
changes in erc-backend.el.
* lisp/erc/erc.el: Require erc-networks.el, which ERC can't run
without these days. To sidestep the circular dependency, require it
last, just after erc-goodies. Remove the `declare-function' for
`erc-network-name' because it's not currently needed at load time.
(erc-log-irc-protocol, erc-hide-current-message-p): Remove `fboundp'
guard logic from `erc-network-name' invocations but preserve meaning
by interpreting `erc-network' being unset to mean module isn't loaded
or authoritative network detection has failed.
(erc-format-network): Likewise here. At the moment, this function
always returns the empty string because the function
`erc-network-name' always returns non-nil, perhaps from the
fallback/failure sentinel "Unknown", perhaps from the printed form of
nil.
* lisp/erc/erc-networks.el (erc-network): This is called throughout
erc.el but was previously cumbersome to use on account of being
guarded by `fboundp'. It now relies on the fact that its namesake
variable is set in target buffers as well.
* lisp/erc/erc.el (erc-open): whenever this function is called, the
variable `erc-server-announced-name' may be set locally in the calling
server buffer. However, if that buffer's dialed server matches that
of the one being created, the announced name is copied over on faith.
But there's no guarantee that the name will match the one ultimately
emitted by the server during its introductory burst. Beyond
potentially causing confusion in protocol logs, this behavior may
complicate debugging efforts. Setting the variable to nil helps
ensure a consistent environment when preparing a buffer for all newly
dialed connections. This commit also simplifies the setting of
`erc-server-connected', which is always nil when connecting and
vice-versa.
* lisp/erc/erc-backend (erc-server-send, erc-server-PING): Change name
of param `forcep' in `erc-server-send' to `force' and change its type
to the union of the symbol `no-penalty' and the set of all other
non-nil values. In `erc-server-PING', use this exemption when calling
`erc-server-send'. This fix was fast tracked and summarily
incorporated into bug#48598 because users of the soju bouncer are all
affected. See update #5 in the bug's email thread under the section
entitled "Riders" for an explanation.
* lisp/erc/erc-backend.el (erc--server-last-reconnect-count):
Add variable to record last reconnect tally.
* lisp/erc/erc.el (erc-reconnect-display): Add new option to specify
channel-buffer display behavior on reconnect.
(erc-setup-buffer): Use option `erc-reconnect-display' if warranted.
(erc-cmd-JOIN): Forget last reconnect count when issuing a manual
/JOIN command.
(erc-connection-established): Record reconnect count in internal var
before resetting.
(Bug#51753)
* lisp/erc/erc-backend.el (erc--unhide-prompt, erc--hide-prompt,
erc--unhide-prompt-on-self-insert): Add functions to ensure prompt is
hidden on disconnect and shown when a user types /reconnect in a
disconnected server buffer.
(erc-process-sentinel): Register aforementioned function with
`pre-command-hook' when prompt is deleted after disconnecting.
(erc-server-PRIVMSG): Ensure prompt is showing when a new message
arrives from target.
* lisp/erc/erc.el (erc-hide-prompt): Repurpose unused option by
changing meaning slightly to mean "selectively hide prompt when
disconnected." Also delete obsolete, commented-out code that at some
point used this option in its prior incarnation.
(erc-prompt-hidden): Add new option to specify look of prompt when
hidden.
(erc-unhide-query-prompt): Add option to force-reveal query prompts on
reconnect.
(erc-open): Augment earlier reconnect-detection semantics by
incorporating `erc--server-reconnecting'. In existing buffers, remove
prompt-related hooks and reveal prompt, if necessary.
(erc-cmd-RECONNECT): Allow a user to reconnect when already
connected (by first disconnecting).
(erc-connection-established): Possibly unhide query prompts.
(Bug#54826)
* test/lisp/erc/erc-tests.el (erc-tests--test-prep,
erc-tests--set-fake-server-process): Factor out some common
buffer-prep boilerplate involving user input and the server process.
Shared with bug#54536.
* lisp/erc/erc-backend.el (erc-server-reconnect): Reuse the username
argument from the previous session's USER command when reconnecting.
Also pass the existing client certificate, fixing an issue related to
bug#47788.
(erc-session-user-full-name): Move variable here from erc.el.
(erc-session-username): Add new local variable to store entry point
parameter.
* lisp/erc/erc.el (erc-session-user-full-name): Move variable to
erc-backend.
(erc-open, erc-determine-parameters, erc, erc-tls): Accept new
optional user parameter.
(erc-query): Preserve current `erc-session-username' when calling
`erc-open'.
(erc-login): Use `erc-session-username' instead of deriving it.
(erc-compute-user): Add new function to determine user name from
explicit argument or user options.
(Bug#54824)
* lisp/erc/erc-backend.el (erc-server-connect): Set
`erc-server-filter-data' to nil upon (re)connecting.
* lisp/erc/erc.el (erc-open): For the sake of clarity, don't
initialize `erc-server-filter-data' here because non-connect
invocations merely set up a target buffer and have no business
touching this variable.
* lisp/erc/erc.el: Declare needed variables exported by erc-backend.el
as special near the top of the file, and only require `erc-backend'
after providing `erc' as a feature at the very end.
* lisp/erc/erc-backend.el: Don't preemptively provide `erc-backend'.
* test/lisp/erc/erc-tests.el (erc--meta--backend-dependencies): Add
utility test to scrape for unused vars that may accumulate over time.
(Bug#54825)
Try and reduce the pain caused by font-lock and syntax-propertize's
wholeline-based operation in buffers made up of a few very long lines
(bug#45898).
* lisp/emacs-lisp/syntax.el (syntax-wholeline-max): New var.
(syntax--lbp): New function.
(syntax-propertize-wholelines): Use it.
* lisp/jit-lock.el (jit-lock--antiblink-post-command): Use `syntax--lbp`.
* lisp/font-lock.el (font-lock-extend-region-wholelines): Rewrite,
using `syntax-propertize-wholelines`.
* lisp/emacs-lisp/gv.el:
* lisp/emacs-lisp/macroexp.el (internal-macroexpand-for-load): Since
eager macro-expansion errors are no longer warnings, don't say so.
* lisp/emacs-lisp/rx.el: `>=` and `=` are much more likely functions
than RX constructs and the indentation machinery currently has
no way to tell them apart.
Suggested by Michael Herdeegen.
This is intended for use in Org mode, where we currently use advise.
* lisp/saveplace.el (save-place-after-find-file-hook): New hook.
(save-place-find-file-hook): Run new hook.
* doc/lispref/loading.texi (How Programs Do Loading): Update
documentation.
* lisp/emacs-lisp/macroexp.el:
(internal-macroexpand-for-load): We've been warning about eager
macro expansion for many years, so finally change that into an
error (bug#18154).
* lisp/server.el (server-process-filter): Add part of patch that
was mistakenly missed when the patch was applied (bug#24147).
This also fixes bug#56309.
* lisp/select.el (xselect-convert-to-text-uri-list): Return a
type of `text/uri-list' instead of STRING or C_STRING.
* lisp/x-dnd.el (x-dnd-xds-performed): New defvar.
(x-dnd-handle-direct-save): Set it to t and handle URIs with
hostnames correctly. Also return errors correctly.
(x-dnd-handle-octet-stream): New function.
(x-dnd-do-direct-save): Handle application/octet-stream, check
results.
* src/xselect.c (x_own_selection): New arg `dnd_data'. Record
it.
(x_get_local_selection, x_handle_selection_request)
(x_convert_selection): Convert the DND data instead if the
situation warrants.
(Fx_own_selection_internal, Fx_get_selection_internal)
(Fx_get_local_selection): Update calls to x_get_local_selection.
* src/xterm.c (x_dnd_do_unsupported_drop): If obtaining
selection ownership failed, return. Record DND value and
preserve the current value of PRIMARY, if it exists.
* src/xterm.h: Update prototypes.
* src/dispextern.h (struct it): Rename 'tab_offset' member to
'stretch_adjust'.
* src/xdisp.c (gui_produce_glyphs, produce_stretch_glyph)
(display_line): All users of 'tab_offset' changed.
(produce_stretch_glyph): Fix calculation of ':align-to' when
line numbers are displayed and the window is hscrolled.
(calc_pixel_width_or_height): Fix calculation of width of 'space'
display property when 'display-line-numbers' is turned on, but the
line number was not yet produced for the current glyph row.
(Bug#56176)
* lisp/progmodes/compile.el (compilation-error-regexp-alist-alist):
Don't allow spaces in the file names, to avoid false matches.
Don't allow ad-hoc spaces preceding the program name either.
* lisp/progmodes/compile.el (compilation-error-regexp-alist-alist):
Change from a mixture of traditional regexp syntax and rx,
to make intentions clearer.
