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as described in <https://todo.sr.ht/~bptato/chawan/6>
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until now, this had very strange (and inconsistent) semantics:
* err() was used for exception propagation, but also as a null value
* Option accepted undefined as a none value, but not null
* Opt and Option were used interchangeably (and mostly randomly)
Now, Result is always used for error reporting, and err(nil) means
JS_EXCEPTION. (Opt is a special case of Result where we don't care about
the error type, and is not used in JS.)
Option on the other hand means "nullable variation of normally
non-nullable type", and translates to JS_NULL. In JS we mainly use
it for turning strings nullable.
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So long as we have to live with siteconf, let's at least make it useful.
Also, rewrite the header overriding logic because while it did work,
it only did so accidentally.
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This way, we can use it everywhere (e.g. in mailcap).
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Better (and simpler) than storing them all over the place.
extra: change lmDownload text to match w3m
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* Parse the default config at runtime. There's no significant
performance difference, but this makes it much less painful to write
config code.
* Add better error reporting
* Make fromJS2 easier to use
* Unquote ChaPaths while parsing config
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As simple as it could be; no download panel yet.
Also, remove the xdg-open default mailcap entry; it's better to just
save by default.
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useful for debugging
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It was defined in the wrong module, and unnecessarily included
LoaderClientConfig.
Also, referrerPolicy was not being propagated to loader clients because
it was (incorrectly) in BufferConfig instead of LoaderClientConfig.
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Originally we had several loader processes so that the loader did not
need asynchronity for loading several buffers at once. Since then, the
scope of what loader does has been reduced significantly, and with
that loader has become mostly asynchronous.
This patch finishes the above work as follows:
* We only fork a single loader process for the browser. It is a waste of
resources to do otherwise, and would have made future work on a
download manager very difficult.
* loader becomes (almost) fully async. Now the only sync part is a)
processing commands and b) waiting for clients to consume responses.
b) is a bit more problematic than a), but should not cause problems
unless some other horrible bug exists in a client. (TODO: make it
fully async.)
This gives us a noticable improvement in CSS loading speed, since all
resources can now be queried at once (even before the previous ones
are connected).
* Buffers now only get processes when the *connection* is finished. So
headers, status code, etc. are handled by the client, and the buffer
is forked when the loader starts streaming the response body.
As a result, mailcap entries can simply dup2 the first UNIX domain
socket connection as their stdin. This allows us to remove the ugly
(and slow) `canredir' hack, which required us to send file handles on
a tour accross the entire codebase.
* The "cache" has been reworked somewhat:
- Since canredir is gone, buffer-level requests usually start
in a suspended state, and are explicitly resumed only after
the client could decide whether it wants to cache the response.
- Instead of a flag on Request and the URL as the cache key,
we now use a global counter and the special `cache:' scheme.
* misc fixes: referer_from is now actually respected by buffers (not
just the pager), load info display should work slightly better, etc.
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Some terminal emulators (AKA vte) refuse to set ws_xpixel and ws_ypixel
in the TIOCGWINSZ ioctl, so we now query for CSI 14 t as well. (Also CSI
18 t for good measure, just in case we can't ioctl for some reason.)
Also added some fallback (optionally forced) config values for width,
height, ppc, and ppl. (This is especially useful in dump mode.)
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Handling text/plain as ANSI colored text was problematic for two
reasons:
* You couldn't actually look at the real source of HTML pages or text
files that used ANSI colors in the source. In general, I only want
ANSI colors when piping something into my pager, not when viewing any
random file.
* More importantly, it introduced a separate rendering mode for
plaintext documents, which resulted in the problem that only some
buffers had DOMs. This made it impossible to add functionality
that would operate on the buffer's DOM, to e.g. implement w3m's
MARK_URL. Also, it locked us into the horribly inefficient line-based
rendering model of entire documents.
Now we solve the problem in two separate parts:
* text/x-ansi is used automatically for documents received through
stdin. A text/x-ansi handler ansi2html converts ANSI formatting to
HTML. text/x-ansi is also used for .ans, .asc file extensions.
* text/plain is a separate input mode in buffer, which places all text
in a single <plaintext> tag. Crucially, this does not invoke the HTML
parser; that would eat NUL characters, which we should avoid.
One blind spot still remains: copiousoutput used to display ANSI colors,
and now it doesn't. To solve this, users can put the x-ansioutput
extension field to their mailcap entries, which behaves like
x-htmloutput except it first pipes the output into ansi2html.
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Aside from being a wrapper of Request, it was just storing the -I
charset, except even that didn't actually work. Whoops.
This fixes -I effectively not doing anything; now it's a forced override
that even disables BOM sniffing. (If the user wants to decode a file
using a certain encoding, it seems wise to assume that they really
meant it.)
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default-flags was overly complicated for its purpose.
Also, ignore-case is quite useful, so enable it by default.
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The API is horrid :( but at least it copies less.
TODO: think of a better API.
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I've gotten tired of not being able to search for forward slashes.
Now it works like in vim, and you can also set default ignore case in
the config.
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Until now, the config file required manual adjustment for the output to
look bearable on terminals colored differently than {bgcolor: black,
fgcolor: white}. Also, it only detected RGB when COLORTERM was set, but
this is not done by most (any?) terminal emulators (sad).
To improve upon the situation, we now query the terminal for some
attributes on startup:
* OSC(10/11, ?) -> get the terminal's bg/fgcolor
* DCS(+, q, 524742) -> XTGETTCAP for the "RGB" capability (only
supported by a few terminals, but better than nothing)
* Primary device attributes -> check if ANSI colors are supported, also
make sure we don't block indefinitely even if the previous queries
fail
If primary device attributes does not return anything, we hang until
the user types something, then notify the user that something went
wrong, and tell them how to fix it. Seems like an OK fallback.
(The DA1 idea comes from notcurses; since this is implemented by pretty
much every terminal emulator, we don't have to rely on slow timing hacks
to skip non-supported queries.)
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At last all BufferSources are unified.
To achieve the same effect as the previous CLONE source type, we now
use the "fromcache" flag in Request. This *forces* the document to be
streamed from the disk; if the file no longer exists for some reason,
an error is returned (i.e. the document is not re-downloaded).
For a document to be cached, it has to be the main document of the
buffer (i.e. no additional resources requested with fetch()), and
also not an x-htmloutput HTML file (for those, the original source is
saved). The result is that toggleSource now always returns the actual
source for e.g. markdown files, not the HTML-transformed version.
Also, it is now possible to view the source of a document that is
still being downloaded.
buffer.sstream has almost been eliminated; it still exists, but only as
a pseudo-buffer to interface with EncoderStream and DecoderStream. It no
longer holds the entire source of a buffer at any point, and is cleared
as soon as the buffer is completely loaded.
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+ actually use the result.
Fixes default converters when no external mailcap exists.
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UMM resolution takes the first entry.
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* Makefile: fix parallel build, add new binaries to install target
* twtstr: split out libunicode-related stuff to luwrap
* config: quote default gopher2html URL env var for unquote
* adapter/: get rid of types/url dependency, use CURL url in all cases
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Also, move default urimethodmap config to res.
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error codes are WIP, not final yet...
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* Add MAPPED_URI_* as environment variables when a request is coming
from urimethodmap
It costs us compatibility with w3m, but it seems to be a massive
improvement over smuggling in the URL as a query string and then
writing an ad-hoc parser for every single urimethodmap script.
The variables are set for every urimethodmap request, to avoid
accidental leaking of global environment variables.
* Move about: to adapters (an obvious improvement over the previous
solution)
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No need to leave gemini support in the bonus folder.
Still TODO: proxy support.
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This is better than %u as it is backwards compatible (i.e. does not rely on
other user agents doing whatever upon encountering an unknown substitution
template.)
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Now we use a (much simplified) gopher2html binary in libexec,
instead of converting gopher directories to HTML in loader/gopher.
This has two advantages:
* Less ugly conversion logic in the loader module; we can just
convert the file line by line. (The previous converter also had
some correctness issues, that is fixed now as well.)
* If the user desires, they can replace the gopher converter with
another binary using the mailcap mechanism.
The disadvantages are:
* For now, source display is broken. This is a problem with all
mailcap filters in general, and should be fixed in the future. (That
said, the previous version also only displayed the converted HTML
source, which was not really useful anyway.)
* The proper directory structure is required for this to work;
OTOH plenty of work has been done so that this is as frictionless as
possible, so it should not really be a problem.
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* Add a default urimethodmap that points finger: to cha-finger
* Install cha-finger to /usr/local/libexec/cha/cgi-bin by default
* cha-finger: use ALL_PROXY if given, die if curl is not installed
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* Paths are now parsed through an unified code path with some useful
additions like environment variable substitution.
* Fix a bug in parseConfigValue where strings would be appended to
existing arrays (and not override them).
* Fix beforeLast calling afterLast for some reason.
* Add a default CGI directory.
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Default is vi-style, but w3m-style marks work as well; see
bonus/w3m.toml.
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* Add select & copy selection functionality to container
* Fix bug in generateSwapOutput where output could be misplaced
because of zero-width cells
* Add fromJSPromise, call runJSJobs in every iteration of the
headed event loop
* "await" pager actions that output a promise
* Change default view source keybinding to `\'
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Without this, setting color-mode using -o required quoting
the values, and then shell-quoting the quotes themselves
(cha -o 'display-color-mode="24bit"').
Instead of more special casing in the TOML parser, we just add aliases
for these enum values that can be parsed using TOML bare string
rules. So now this works:
cha -o display.color-mode=true-color
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use what is documented
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yay
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