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* Edit's w and the other left-out sam commands fail EIO in words, never ↵Gabriel Schneider5 days
| | | | | | | | | | | | | 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]>
* name takes any byte a file name can hold, controls, edge blanks and bytes ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* Views generated by each read stat 0, as acme's do: data, xdata, index, ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* A Restore brings back clean a pane whose file was never on disk, such as ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* A shell's > into an empty pane's body is one undo step, as into any otherGabriel Schneider5 days
| | | | | | | | | | 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]>
* :N on a PDF turns to page N, from the pane and from the root's look; @pN:N ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | 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]>
* A shell command from the workspace's or a column's tag runs as a command ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | 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]>
* A pane's tagexec goes to the event reader holding the pane as an x record, ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* Recent and /recent keep PDFs and images as they keep files, and an open ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* DumpConfig writes a setting this shell cannot show as a "# Word unsupported" ↵Gabriel Schneider5 days
| | | | | | | | | | | 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]>
* Every setting's bad-value refusal names what it takes: InactiveDim 0-100, ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* A look's miss cuts a long path in its middle with the Rerror cutter, keeping ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* An edit that changes nothing, an empty range deleted or a range replaced by ↵Gabriel Schneider5 days
| | | | | | | | | | | 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]>
* A refused write to dot after a shell's truncation changes nothing: the ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* Jumplist fills its one +Jumps again, as Recent does, never opening a secondGabriel Schneider5 days
| | | | | | | | 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]>
* After a ThemeFile, the root ctl and DumpConfig say ThemeFile and its path, ↵Gabriel Schneider5 days
| | | | | | | | | | | 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]>
* A builtin for one kind of pane is refused on another with why: Petscii, ↵Gabriel Schneider5 days
| | | | | | | | | | | | | 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]>
* Save and Save path on a PDF or image pane are refused, "a PDF pane has no ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* Joincol is refused, as Newcol is, when the joined column cannot give each ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | 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]>
* fs.md says a body write to a terminal is typed input, never a bracketed pasteGabriel Schneider5 days
| | | | | | | | | | | 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]>
* Save path logs a save record naming the path it wroteGabriel Schneider5 days
| | | | | | | | | | | 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]>
* A rename (mv) of a pane's directory or any file of the tree is refused as ↵Gabriel Schneider5 days
| | | | | | | | | | | | | 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]>
* name refuses a directory, EISDIR, when written, not at the Save that could ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* A pane refused for want of room spends no pane serial, as a refused Newcol ↵Gabriel Schneider5 days
| | | | | | | | | | | 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]>
* fs.md says that in a > to a tag cut into several writes, those taken before ↵Gabriel Schneider5 days
| | | | | | | | | | | | | 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]>
* An addr, dot or limit pair out of order or past the text is refused as the ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* A Restore logs and names the whole path of the dump it reads, not the name ↵Gabriel Schneider5 days
| | | | | | | | | | | | | 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]>
* A tag rewrite counts its text without the newline it drops: echo of exactly ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* An empty range written back to event acts on the word a click there expands ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* A focus moved over 9P tells the programs that asked for focus reports, as a ↵Gabriel Schneider5 days
| | | | | | | | | | | | 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]>
* A 9P look keeps its leading blanks: an indented line, or blanks alone, is ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | | looked for as written Every line written to look or exec went through Messages.next, which trimmed blanks from both ends. A look of ` indented` then found the first bare `indented`, and a diff's blank context line ` ` looked at nothing. A look's line is now its text: only its `\r` and newline go. lookAt keeps the blanks for the word search too; it expands `~` only for a look that starts with one, and the path, address and command readings trim for themselves as before. runSearch keeps a pattern's blanks, since a builtin's argument comes trimmed already. An exec line is trimmed as before. fs.md says so. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A restored pane whose file is gone from disk comes back dirty, and Del asks ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | before throwing its text away A dump keeps a pane's text. Restored after its file was deleted, the pane came back clean: the watch's baseline read of the missing file failed quietly, and Del closed it without a word. Its text was then nowhere at all. Restore now checks the file: a local path with nothing on disk comes back as one deleted on disk, as the watch would have said. It says so once, logs `changed N deleted`, and is dirty, so Del, Exit and Restore ask first. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A 9P write scrolls only the view: dot moves as acme's textinsert moves it, ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | never to the end of the write writeData, flushBatch and writeBody showed what they wrote with showOffset, which put the cursor at the write's end. The cursor is dot's head, so a data write or a body append moved dot there, and a `sel` write after it replaced the wrong text. showOffset now scrolls the view to the offset and leaves the cursor, pinned, where it was. Dot shifts only by the rule it already followed, acme's: an insert before dot shifts it, one at its start or inside it grows it, one at its end or after it leaves it. The test covers each case, then a body append followed by a sel write. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A write of a multiple of 4096 bytes holds the partial line it ends with, as ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | one that fills its Twrite does: a burst through a mount no longer runs its cut lines as two commands selfmount's 1000-line burst reported 943 lines, on main too. The log ring was not losing records: a follower opened before the burst heard exactly 943 and no `lost`, and the burst itself exited 1 with `err 1 exec: wrong #args in control message "Msg"`. `seq ... > exec` through the mount arrives as stdio's 4096-byte writes, each shorter than a Twrite. The rule that such a write is whole ran each one's cut last line at once, so both halves of the line ran as commands (hence `exit 127` records). At 12288 bytes the cut left a bare `Msg`, which was refused and failed the write and the rest of the burst. A write of a multiple of 4096 bytes is where a writer's buffer (stdio, a page cache) filled, so it may go on: its unended tail now waits for the next write or the close, like one that fills its Twrite. `printf Save > exec` stays whole at once. fs.md says so, the 9P fuzzer's model of served lines follows it, and a unit test cuts a `Msg` at 4096 bytes. A follower does not lose records silently: a ring that outruns one already reads it `lost N` first (documented, tested). selfmount now follows the log from before the burst, so it checks every line heard once, in order, or a loss said, not a fresh open of a 64 KiB ring. It passed 3 in 3 and joins the gates with the new 9ns. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A path typed with a leading ~ is the home directory, at every entry point ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | | | | | | | | | | | | | | that takes one, through one helper Only DumpDir (dump.zig) and ShaderBuild expanded `~/`, each its own way. So a look at `~/notes.txt`, `name ~/x`, `Save ~/x`, ThemeFile, Restore and a quoted `pardes '~/x'` all took `~` as a directory of that name under the pane's. There is now one rule, filesystem.expandHome. A leading `~`, alone or before `/` or `:`, is $HOME, else the passwd entry's home; `~user` is that user's (getpwnam). As in a shell, it applies even beside a file named `~`, and `./~` names that file. Every entry point runs its typed path through it: - look, B3 and 9P, before any parsing, so `~/x:12`, `~/x:12:3` and `~/x:/re/` all work; - name, and a tag's rename; - Save <path>; - ThemeFile, DumpDir, Restore and ShaderBuild's shader files; - the forwarding launch. Recent rows are not shown with `~` and need nothing. How names are shown is unchanged. Tests: expandHome's cases, and HOME unset (passwd), with HOME passed in rather than set, since setenv moves the environ a spawned child reads. fs.py covers Save into missing directories under `~`, `name ~/x`, a look at `~/x:3`, and a forwarded `pardes '~/x'`. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* pane/new takes rows from a pane in another column before refusing ENOSPC, as ↵Gabriel Schneider5 days
| | | | | | | | | | | | | acme's placement does A pane/new whose column had no room was refused "no space for a pane in that column", even with another column holding a tall pane that could give rows. acme takes rows wherever a window has them before saying there are none. pane/new now tries the other columns as +Errors already did: an empty one, else its tallest pane's bottom half, last column first. It is refused only when no pane anywhere can give the rows. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* Kill with a name and nothing running says "Kill: nothing running" and ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | succeeds, as bare Kill does Bare `Kill` with nothing running is a message, not a failure: a script's Kill has nothing left to do. `Kill make` in the same state failed the write with "no running command has that first word", as though make were the mistake. With nothing running at all, named or not, Kill is now the message. It still fails when commands run but none has the word. The two tests that used `Kill zzz` as a builtin that always fails now use `Unmount zzz`. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* An event record written back without its trailing newline is taken, as every ↵Gabriel Schneider5 days
| | | | | | | | | | | other line file's last line is `printf 'MX0 10' > event` was refused as a malformed record, while exec, look and every ctl take a last line with no newline. The event file now does too: a write not ending in a newline is read as though it did, and the write still counts the bytes that came. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A tag write over the limit is refused "no space: over 4096 bytes", so its ↵Gabriel Schneider5 days
| | | | | | | | | | | err record says tag: once The refusal's text began with "tag: ", and the log's err record puts the file's name before the reason. So the record read `err - col/1/tag: tag: no space: over 4096 bytes`. The text is now the reason alone, as the control-character refusal's is, and the record names the file once. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* Save makes the directories its file goes in, always: for the pane's own name ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | | and Save path alike Whether a Save made missing directories depended on how the name had come about. Config's pane did, a name written into a missing directory did (since kkrqxtsp), and `Save path` and every other name did not, failing ENOENT instead. There is now one rule: a Save makes the parent directories of the file it writes, a pane's own or a terminal's scrollback included, and the make_dirs flag is gone. A directory it cannot make still fails the write with why, as fs.py's /nonexistent-pardes-dir case shows. fs.py now also saves into missing directories by Save path and by a written name. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A look at file:3:0 is refused as addr 3:0 is: a column counts from 1Gabriel Schneider5 days
| | | | | | | | | addr refuses a column 0 with EINVAL, "address out of range: a column counts from 1". A look took `file:3:0` as line 3 with no column, since the parser holds no column as 0, and succeeded. Now a look whose column, or end column, is written as 0 is refused with addr's words and errno. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* DumpConfig's lines that set nothing start with #, and a line starting with # ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | runs as nothing at an exec, a ctl or the init file DumpConfig's information lines ("Platform: tty", "Startup config: ...") began with words. Written back, as the report means to be, or clicked, each ran as a shell command or failed as an unknown control message. Each now starts with `# `. A line starting with `#` is a comment, as in a shell: it runs as nothing, silently, at an exec, at the root's, a pane's or a column's ctl, and in the init file. Documented in fs.md and config.md. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* winsize refuses fewer than 2 rows, saying so, and its range reads 1x2 to ↵Gabriel Schneider5 days
| | | | | | | | | | | | | 4096x4096 as the docs say `winsize 20 1` was taken and quietly raised to 2 rows, so the write succeeded with a size other than the one asked for. The range refusal also said "1x1 to 4096x4096", although fs.md says at least 2 rows. One row is now refused with "invalid winsize: at least 2 rows", and the range text starts at 1x2. size already refused anything under 20x6 with a text that names it. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A run whose output a redraw moved above its start answers cut, never an ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | | | | empty whole pty/run reads a command's output between its C and D marks. When the end landed at or before the start, it answered `exit 0` with no output, as if nothing was printed. That happens when the shell redraws its prompt over the output, as it can in a window two rows high (winsize 10 2). Now only equal marks mean nothing was printed. An end at the top-left cell or above the start says `cut`, since how much was printed is not known. bash, fish, long lines and 3000-line outputs at winsize 10 2 all came back whole on this build, so the dogfood's loss could not be reproduced directly. The test drives the marks into the inverted case the loss needs. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* With no pane at all, the root look opens its file and the root exec runs its ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | command in the session's directory /look and /exec run at the active pane, and with every pane closed they failed ENOENT, "file does not exist", about a file the writer never named. Now an exec runs as the workspace tag's would, in the session's directory: a builtin at the stand-in, a command in a command pane. An empty window's click now runs a command line too, not only session words. A look runs from a scratch made as New makes one, which also makes the column. That scratch is dropped, unannounced, when the look went to another pane, so opening a file leaves only the file. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A Newcol refused because the panes' tags would not fit logs its err alone ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | | | and spends no column serial Newcol tries its column before keeping it: the new column is inserted, the panes' rows are shared out again, and where a pane would be left under its tag and two rows the column is taken back. The trial showed. insertColumn logged `newcol N` and the take-back `delcol N`, so a follower saw a column come and go around the err. Laying the column out also gave it a serial, so the next column made skipped one. The trial is now unannounced, since insert and drop have unlogged forms. A refusal puts the serial counter back where it was, after first giving every existing column its serial so the trial's is the only one spent. Only a column that stays is logged, and it gets the next serial. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A backward search along one long line takes time in the line's length, not ↵Gabriel Schneider5 days
| | | | | | | | | | | | | | | its square: ?a? over 117 KB goes from 6.4 s to 0.03 s The 9P fuzzer (seed 124) hung a session for over 5 s on `?a?` in a 117 KB file of one line. A backward search is every forward match up to the limit, so Regex.find ran once per match. Each call looked back from its start to the line's start, and forward to the line's end, over the whole line each time. That is quadratic, and the step budget, which counts only mvzr's steps, never saw it. find now keeps where it last learned a line starts and ends in the same text, and looks back only to there. The literal prefix's look back stops at the known part of the line. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* The ctl word name refuses a leading blank, as the name file doesGabriel Schneider5 days
| | | | | | | | | | `name /tmp/x` written to a pane's ctl trimmed the extra blank and named the pane /tmp/x. The same name written to the name file was refused with "a blank at its start", which fs.md gives as the rule, so the name a script wrote is the name it gets. The ctl word now hands the name file everything after its one separating blank. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* Help and Find from the workspace or a column tag act in the session's ↵Gabriel Schneider5 days
| | | | | | | | | | | | directory, not the keyboard pane's New, Tty and commands clicked in a tag no pane owns ran in the session's directory, but Help named its +Help after the pane with the keyboard, and Find walked that pane's directory. So the same click gave different results depending on which pane was focused. Both now take the session's directory from a header, through execDir as the others do. Co-Authored-By: Claude Opus 5.5 <[email protected]>
* A column's and the workspace's tag read with no trailing newline, as a ↵Gabriel Schneider5 days
| | | | | | | | | | | pane's does A pane tag read back its text alone, but a column tag and /tag appended a newline and gave a stat size one byte longer. So `$(cat tag)` agreed across the three kinds while `cat tag | wc -c` and a byte compare did not. All three now read the text alone, and fs.md says so. Co-Authored-By: Claude Opus 5.5 <[email protected]>