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EOPNOTSUPP, and /os refuses a rename or a chmod as not permitted, EACCES
"w is not supported in pardes" read through a mount as EOPNOTSUPP, as
if the file system lacked an operation, and a chmod under /os was
answered "invalid truncate", EINVAL. An Edit command pardes leaves out
now says so in words 9ns reads as EIO, and a rename or mode change of
an /os file is "permission denied", EACCES. fs.md's Failure section and
/os entry say both.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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sweeps the pardes-9p-<pid>.sock files whose pid is gone
The runtime directory had gathered a hundred sockets of dead editors:
only a clean exit removed its own, and a signal or a crash left it. The
terminal's kill handler and, where nothing else handles the signals, a
handler of the listener's own now unlink the socket before the signal's
death. At listen, each pardes-9p-<pid>.sock whose pid kill(pid, 0)
answers ESRCH for, that is a socket of this user's and that nothing
answers on, is removed; a live pid's, a named session's and anything
else are never touched.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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not UTF-8 included, so what name reads writes back as it was
A pane opened on a file whose name held a tab, a control byte or bytes
not UTF-8 read that name from its name file, and the same bytes written
back were refused. Only what no file name holds is refused now: a second
line and a NUL. The ctl word name still refuses a second blank after the
word, as a line's words are split at blanks.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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name no session has is "no such session"
A detached session's core has no frontend loop to take an Attach, so
the word was asked and never answered: a ctl write of it succeeded
and nothing happened. The core now knows it is a detached session's,
and Attach there says why: bare names no session but itself, a name
with no session behind it is said so, and one that is a session is
told to be attached from a frontend.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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layout, recent and listeners; fs.md says which files have real lengths
A stat of index, layout, recent or listeners built the whole view to
count it, and data and xdata reported the body's length though a read
answers what addr selects. Those now stat 0, as screen and pane/new
already did, and fs.md lists the files whose length is real and says to
read the rest to the end.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Config's new init; only a file that existed when dumped is said deleted
A restored pane whose path was not on disk was marked deleted on disk,
so Config's not-yet-written init came back dirty and asked before Del,
Exit or Restore. The dump now records whether the file was on disk
(older dumps read as yes), and only one that was and is gone is said
deleted.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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session has no such pane", exit 1 and no pane made; one it has is looked at
@p999:1 was taken as a new file's name, so a pane named <cwd>/@p999 was
made and the launch succeeded; an @pN the session did have was the same
stray pane. A pane address is now checked against the session: one it
has is a look at it, one it has not is refused with the reason and exit
1, as a refused name is.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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"a file name is one line", never NotOneLine
The forwarding refusal printed the error's name for anything the
session itself did not answer: NotOneLine, NotAFileName,
NoWorkingDirectory. Those are now sentences, a dial failure is said as
the message row says one, and any other error is its name's words.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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The truncation of an empty body is no edit and pushes no step, but it
still marked the open's writes as joining the step it would have
pushed, so the text written after it had no undo step at all. A
truncation that changed nothing (of body, data or xdata) now leaves the
step to the write that follows.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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answers ok with no err; an address in a pane with no text names the pane
A PDF pane took :N as a word to search for, and @p<pdf>:N failed as
"is no text to address" after the page had nothing to do with it, an
err in the log for a look that meant something. A PDF's address is now
its page: :N turns to it, one past the last is the has-no-page miss,
and a byte offset or a pattern is refused saying a PDF's address is a
page. The refusal for any other textless pane named an empty path when
the look was a bare :addr; it names the image or @p<serial> now.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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pane in the session's directory, never typed into the terminal with the keyboard
A command clicked in a header tag, or written to /tagexec or a
column's exec, was typed into the active terminal when it sat at an
empty prompt, so it ran in that pane's directory and left no run or
exit record. It now always gets a command pane of its own in the
session's directory, as acme's row and column tags have no directory
but the session's. tags.md writes the rule down: pane words act on the
column's active pane, a column's words on the column, shell commands
as their own panes, and over 9P a pane's word is refused.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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as acme's tag clicks do, not run past it
A real click in a held pane's tag was already told to the reader, but
the same click written to the pane's tagexec ran at once, so a script
holding the pane could not intercept it. The line is now an x record
(l for a look), done when the reader writes it back. A column's or the
workspace's tag is still no pane's and runs as before.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
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docs/typ/cheatsheet.typ holds the facts as semantic calls (#key, #btn,
#chord, #word, #tag, #addr, #file, #cmd, #doc); docs/typ/style.typ
defines those once, drawing them for paged output and emitting HTML
elements under --features html; docs/typ/cheatsheet-a4.typ is the page.
`zig build cheatsheet` renders it when typst is on PATH. A config.zig
test reads every .typ in docs/typ and fails when one names a builtin,
key binding or default tag pardes no longer has.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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The look on a diff line was its own resolver: a walk up to .git/.jj from
the diff's directory, its own "no such file here" and "deleted by this
diff". A review tool's cached patch, in no repository, missed every file
though the session's terminals sat in the checkout.
Now a diff line only expands and transforms. Its expansion (what the hover
shows) is the whole line for a header, a `@@` line, or a hunk line
pointed at on its prefix, and its text is the look address the line names
(look.diffAddress): `path` for `diff --git`/`---`/`+++`, `path:c` for
`@@ -a,b +c,d @@`, `path:N` for a hunk line's new line (a removed line's,
the new line now where it was). That text goes through the regular look
exactly as if selected by hand: same resolution, placement and errors. A
9P look of a whole diff line takes the same transform.
Kept: the line classification, hunk arithmetic, git prefix stripping and
timestamp cutting (diff.zig). Gone: the repo-root walk, its messages,
Target.old_side and deletesAhead, and the click's row stash
(Pardes.diff_look). A test compares a B3 on a cached patch's line with a
look of the hand-selected `entry/src/entry.rs:2` in the same session.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
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look, as in any pane, and Shift sends them to the program as its buttons 2 and 3; B1 and the wheel stay the program's, Shift keeping them pardes's
The Shift that sends B2 or B3 is left out of their reports and of the
drags they hold: it only chose the target. A B2 or B3 sweep of pardes's
moves nothing to the program under 1003.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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file's row is where its dot is now
Only text files were recorded, so a PDF read yesterday was not there to
find again, and an open file's row showed the place it last closed at,
stale by however far it had moved since. A PDF is kept at its page and
reopened there from its row; an image by its path; an open one's row
reads its pane's place at the time of the listing.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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found", not "theme file: file not found"
The read and parse failures come back after the write, often from a
relative name resolved against the config directory, so which file was
missing or bad was left to guess. They now carry the resolved path,
its middle cut when long.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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rather than open an empty +PdfSections
An empty pane with no word of why read as a failure to load, and was
kept to be re-shown on the next press. With no outline there is
nothing to list: the press is refused with the reason, and a read or
slot failure is said too, where it returned silently.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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last page in its place
manual.pdf:999 on a twelve-page PDF showed page 12 and said nothing,
so a stale or mistyped page number looked like a place found. It is
now the miss a line past a file's end is, whether the PDF is open (it
stays on its page) or not (nothing opens). A restore or a start-up page
past the end still lands on the last.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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comment, GripWidth among them on the tty, so the whole report writes back to /ctl
The report said it could be written back as is, but "Lift unsupported"
and the tty's "GripWidth 100" were each refused by the root ctl, and
"DumpDir (none)" would have named a directory "(none)". Those lines are
now comments, and a test writes every line of the report back.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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MessageLinger 0-60000 milliseconds, a path's limit, a font's form
A setting that chooses among words named them, but one that takes a
number, a path or a font said only "bad value" over 9P and "does not
take that value" from a tag, leaving the range to be guessed. The
refusal, both ways, now says its range or what it takes, from one
table beside the words.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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here to rename", and fails the write that asked it
An empty answer to a rename returned without a word, so Rename on a
place with no symbol looked like a rename that worked. It is now the
not-found failure every other query gives.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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the file's name, never mid-word at 64 bytes
"is no text to address" cut the path at 64 bytes, often mid-word and
losing the file's name, and the other misses cut theirs at 256 from
the end, losing it too. Every miss now goes through fitErr, the cutter
an Rerror uses, which gives up the middle of the longest path so the
start and the name at the end both stay.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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between them goes, they are one
A closed pane's entry dropped from between two visits to the same place,
or a closed file's entry reopened beside its own, left twin entries,
and Back spent a press going nowhere while Jumplist listed the place
twice. The compaction that drops dead entries now folds a twin into the
one before it, keeping the current entry on the one kept.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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what it holds, makes no undo step
A shell's : > data on an empty address, echo abc > data over abc, or
Edit s/d/d/ each pushed an undo step and a new revision, so Undo spent
a press on nothing and the pane read as edited. The splice of the 9P
writes and the Edit builtin now see the text is unchanged and stop.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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truncation waits for the write, as limit's does
echo /nomatch/ > dot truncated dot to an empty range at the top before
the write was refused, so a failed address still moved the selection
and scrolled. The truncation is now held until the write that follows
it: that write sets dot, or, refused, leaves it as it was. A truncation
with no write after it (: > dot) empties it when its open goes.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Each Jumplist opened another +Jumps below the asking pane, so a few
clicks stacked stale copies of the list. Recent's refill of its own
pane is now shared, and Jumplist uses it.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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so what they report writes back
Both said Theme and the name inside the .zon, which no Theme knows, so
writing the report back to /ctl failed with "no theme". While a loaded
ThemeFile is the theme in effect they now say the word that loaded it.
A Dump carries the line too, so a Restore reloads the file.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Palette, Ascii, Filter, Togglettymode, the Pdf words, Mode and TreeContext
Each of these did nothing, silently, on the wrong kind of pane, so a
ctl or exec write of Palette to a text file answered ok as if it had
acted. A builtin now declares the one kind it is for (needs), the
registry reads it, and runBuiltinFrom refuses the rest before dispatch,
as Repl and Edit already refused theirs. Mode and TreeContext, which
take more than one kind, say their own refusal.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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text to save", never a silent success
A bare Save on a PDF or an image did nothing, and `Save path` returned
without writing, both answered as done. Such a pane shows a file it does
not hold as text, so there is nothing of its own to write. Save now
refuses it with why ("Save: a PDF pane has no text to save", or an image
pane's), and so fails the write that asked.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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pane its tag and 2 rows
Joincol moved every pane of the keyboard's column into the next one
whether they fit or not. Two columns of two panes in a 12-row window
became one column of four, wanting 12 rows where 10 were free, a layout
that `size` then refused as it stood. Joincol now tries the join in place
first (layout.joinFits: the panes and width moved, minimaFit asked,
everything put back, nothing dropped or logged). A join that does not
fit is refused, "Joincol: no space: the joined column cannot give each
pane its tag and 2 rows".
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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MB in, /screen goes from 14.7 s to 5 ms
Every render measured a selection's and the cursor's columns from the
start of their line (lineDisplayOffset walked the whole prefix twice),
so a selection near the end of a 5 MB line stalled each frame, 3 s at
1 MB in and 14.7 s at 5 MB. The cost grew with the offset, with Wrap on
or off. Three changes make it independent of where the selection is:
- display width adds (a tab is tab_width wherever it stands), so the
offset between two columns is the width of the text between them,
never the prefix;
- the selection's rows are clamped to what is shown: a row wholly
before the selection is skipped, a start before the row's first
column starts there, and an end past its last column ends there;
- a head or cursor whose column lies past its visible row (the last
visible row of a line owns every column after its start) is not
measured, since it is not drawn.
Measured on a Debug build, 5 MB line: offset 10, 1 MB and 5 MB now take
11, 6 and 5 ms per /screen. A new perf gate case, deep-sel, renders with
the selection 2 MB into a line: 83 us on Debug. The baselines were
re-recorded for the new harness.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
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by git's rules, a plain diff's names as written
In a git section (one with a `diff --git` line) the one-letter side prefix
git writes, `a/`/`b/` or with diff.mnemonicPrefix `c/`, `i/`, `w/`, `o/`,
is dropped from its paths only when both paths of that line carry one,
different ones: `--no-prefix` writes none, so its `a/x a/x` is a real
directory `a` and is kept. A plain `diff -u` never strips: its names are
used as written, past the timestamp. `/dev/null` stays itself.
The walker does this once (diff.Walk.side, diff.gitHeader), so the path a
look resolves, and the one a miss says, are the repository's name:
`Look: src/x.zig: no such file here`, `Look: lib/old.zig: deleted by this
diff`. The look no longer tries a stripped name beside the written one.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Co-Authored-By: Claude Opus 5.5 <[email protected]>
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A write to a terminal's body goes to its child as typed keys: no
bracketed-paste marks around it, even when the program set 2004, so a
newline in it is Enter and a shell runs each line. fs.md did not say
which, and a script cannot guess. It does now, and a test writes to a
terminal whose program asked for bracketed paste and checks the bytes
sent are only the ones written.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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Save of a pane's own file logged `save <serial> <name>`, and so did a
scratch's `Save path` (the pane takes that name). A `Save path` that
writes a copy of a file pane, or a terminal's scrollback, elsewhere
logged nothing, so a follower could not tell the file was written. It
now logs `save <serial> <path>` with the path written, once the host has
written it (events.noteLogAs). fs.md's log table says so.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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not permitted, EPERM, not an EIO
cloud9's engine passes a wstat that changes a name to the backend, and
the tree's setattr ignored the name: the rename answered as done, the
name did not change, and a mount then gave `mv` EIO. The tree names its
own files, so a setattr with a name is now refused, "rename not
permitted", which 9ns reads as EPERM. A pane's buffer is still renamed
through its name file.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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only fail
`name ~`, `name /` or `name foo/` renamed the pane to a directory, and
only its Save failed later. A name ending in `/`, the root, or one naming
a directory that is there is now refused at once, with words a mount
reads as EISDIR (`name: <path> is a directory, not a file`). The ctl word
name and a forwarded `pardes ~` go through the same check. fs.md says so.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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shared, rather than stacking one per word
Each word looked for in a terminal (clicked, or written to look), where
no file of that name was, opened another +Search in the same directory,
one per word, until the column filled. Such a search now refills the
directory's +Search, as the file searches and the +Lsp answers already
share theirs. A `/` search keeps a +Search per pattern, which n and N
walk across (psearch.snap), so the sharing is marked on the word look
alone (Pardes.word_look).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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spends no column serial
A pane/new, look or exec refused ENOSPC made its pane before placing it.
The refusal closed the pane unannounced, but its serial was gone, so the
next pane skipped one. When sync removes a refused pane that holds the
newest serial, it now puts the counter back.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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a refused one stand
A `>` to a tag that a client sends in several writes is checked a write
at a time. When a later one is refused, the earlier accepted ones stay in
the tag. Buffering the whole open to apply it or none would cost more
than it saves, so fs.md now says what happens: each write stands on its
own, and only the refused one changes nothing. A test covers a
truncation, an accepted write, then a refused one.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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address form is, not clamped
`#5,#2` and `#2,#99` were refused (addresses out of order, address out of
range), but the pair form `5 2` became 5..5 and `2 99` became 2..end,
silently a different range from the one asked for. A pair is now checked
the same way: past the text is out of range, and an end before its start
is out of order. fs.md says so.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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as typed
`Restore x.dump.zon` read the DumpDir's x.dump.zon but logged
`restore x.dump.zon`, and `~/d.zon` logged the tilde. A follower could not
tell which file was restored. The builtin now resolves the name once
(fs.restorePath: `~` expanded, a relative name the DumpDir's when one is
there, else the current directory's) and hands that path to the host,
which reads it and logs `restore <path>`. Its messages name it too.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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4096 bytes fits
`echo <4096 bytes> > tag` wrote 4097 bytes and was refused "over 4096
bytes", although a rewrite drops that one trailing newline and would have
held exactly 4096. The limit now counts a truncating write's text without
the newline it drops, for a pane's, a column's and the workspace's tag. An
append still counts its newline, which it keeps.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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by this diff", the diff --git and --- lines too
In a section that deletes its file, a look at a removed or hunk line said
"<file>: deleted by this diff". The `diff --git` and `---` lines said "no
such file here", because they come before the `+++ /dev/null` (or
`deleted file mode`) that says so, and the walk had not reached it yet.
They now look ahead within the section, so every line gives the one
message.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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to, as acme's expand does
`ML960 960` or `MX1 1` written back with no text acted on the empty range
between the offsets: a look of nothing, an exec of nothing. A click at a
point expands to the word or file name under it, and acme's written-back
event does the same. It now expands with look.expandedWord, as a no-drag
click does, on its line of the body or tag. fs.md says so.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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click does
A program that set DECSET 1004 heard `CSI O` and `CSI I` when the keyboard
moved by a click, a key or the window's focus, because update() checks
after each event. A /focus write went through serveFs, which never did,
so the program kept believing it had focus until the next input event.
serveFs now runs the same check once a request has settled.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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