| Commit message (Collapse) | Author | Age |
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This patch overhauls the `Parser::advance` API to operate on byte slices
instead of individual bytes, which allows for additional performance
optimizations.
VTE does not support C1 escapes and C0 escapes always start with an
escape character. This makes it possible to simplify processing if a
byte stream is determined to not contain any escapes. The `memchr` crate
provides a battle-tested implementation for SIMD-accelerated byte
searches, which is why this implementation makes use of it.
VTE also only supports UTF8 characters in the ground state, which means
that the new non-escape parsing path is able to rely completely on STD's
`str::from_utf8` since `memchr` gives us the full length of the plain
text character buffer. This allows us to completely remove `utf8parse`
and all related code.
We also make use of `memchr` in the synchronized escape handling in
`ansi.rs`, since it relies heavily on scanning large amounts of text for
the extension/termination escape sequences.
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Signed-off-by: Andy-Python-Programmer <andypythonappdeveloper@gmail.com>
Signed-off-by: Anhad Singh <andypythonappdeveloper@gmail.com>
Co-authored-by: Nicholas Sim <nsim@posteo.net>
Co-authored-by: Christian Duerr <contact@christianduerr.com>
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Much like `std::ops::Range`, we likely don't want this to be `Copy` as
that makes it too easy to get mixed up on what state you are using but
`Clone` should be explicit enough to be safe.
`PartialOrd` / `Ord` were left off because there isn't really a
user-facing ordering to these types
`Hash` was left off as the use cases for it isn't clear.
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Even though the ST terminator is the only officially supported
terminator, some applications still rely on BEL to work properly. Both
have been supported historically, however there was no way for the
terminal to tell which terminator was used.
Since OSC escapes frequently offer the `?` parameter to query for the
current format, some applications expect the response terminator to
match the request terminator. To make it possible to support this, the
osc_dispatcher is now informed when the BEL terminator was used.
Since the C1 ST terminator was not yet supported for OSC escapes,
support for it has also been added.
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This completely removes the `codegen` project, which relied on outdated
libraries to parse DSLs to build the utf8 and vte state tables, to make
the library easier to maintain.
The utf8 table could be completely removed in favor of a `match`
statement, which also lead to a performance improvement with the utf8
parser.
The vte table did not benefit from `match` statements at all and instead
had significantly worse performance with it. To replace the old
codegeneration for vte, the `generate_state_changes` crate has been
created instead, which uses the language's proc_macro feature to create
a `const fn` which will generate the table at compile time.
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This moves all crates in the workspace to the latest Rust standard and
resolves various style and formatting issues.
Fixes #32.
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