Both the racket and scheme entries used the rkt file-extension. This
commit removes that entry for scheme and so that the racket entry takes
precedence. We explicitly point to the scheme grammar now and setup
queries that inherit from scheme. This should enable using the racket
language server configuration.
This update includes a handful of fixes, a new binary concatenation
operator (already highlighted by the `binary_operator` rule), and a
new `use` language construct. The nodes are backwards compatible but
this update introduces two new nodes for highlighting: `use` and `<-`.
This doesn't work robustly (within pattern matches). Only regular
bindings are highlighted as parameters. In order to highlight all
parameters even in matches, we would need an arbitrary nesting operator
in queries which doesn't exist yet in tree-sitter.
This highlights edoc within Erlang comments. The trick was to have
the Erlang grammar consume newlines and then give them to EDoc in the
injection to use so that line-wise elements could be parsed accurately.
- treat `restrict`/`_Atomic` like `const`/`volatile` => @keyword.storage.modifier
- highlight `unsigned int` as builtin => @type.builtin
- recognize `static_cast` and friends => @keyword
- `template` is a kind of entity like `typename` => @keyword.storage.type
- many declaration modifiers have nothing to do with storage/types
(explicit, friend, access specifiers, inline in C++) => @keyword
- fix floats highlighted as integer => @constant.numeric
This stanza highlights functions within trait definitions. For example,
in:
pub trait Widget {
fn render(self, area: Rect, buf: &mut Buffer);
}
`render` is currently highlighted as a variable. With this change it's
highlighted as a function.
`do_block` and `block` seem to conflict, causing double-indentation in some cases. Removing `do_block` does not seem to have any negative effect, while fixing the double-indentation issue.
* avoid coloring `identifier`s globally
* fix function application when not part of `select_expression`
* add `has_attribute_expression` highlighting
* fix precendence for interpolation, which should be after select
* highlight `@` as delimiter
By simply placing a comment with the name of the desired language just
before a multi-line string, that language will be injected.
Also, common functions and attributes which are expected to be shell
code are automatically injected.
There don't appear to be any regressions from the updates.
Also included is a fix which highlights the "#" as in attributes
as punctuation. This was previously unhighlighted.
For example
-record(state, {})
Would not highlight `state` as a type since the alternation didn't
allow for an empty tuple. Allowing the inner atom of the tuple to be
optional fixes this case.
JavaScript queries now contain a few lines that prevent them from
being used whole-sale in typescript with `; inherits: javascript`.
Here we follow nvim-treesitter's way of using a fake 'ecma' language
as a common base for JavaScript and TypeScript to share as much as
we can.
The fix comes from the rewriting of the `closure_parameters` stanza:
it was capturing the entire `closure_parameters` node including
paretheses, whitespace, and commas. Capturing the identifiers within
fixes the tracking.
In order to make sure locals definitions from closure parameters don't
leak out of the body of the closure, though, we should also mark the
closure itself as a locals scope.
A few changes to make TSQ highlights better:
* A parsing error has been fixed in the grammar itself
* Previously tree-sitter-tsq did not parse the variables
in predicates like `(#set! injection.language "javascript")`
* Theme nodes as `tag`
* The newly added node to the parser (from the above fix) is
`variable` which takes over the `variable` capture from nodes
* Highlight known predicates as `function` and unsupported
predicates as `error`
* This may help when translating queries from nvim-treesitter.
For example `#any-of?` is a common one used in nvim-treesitter
queries but not implemented in Helix or tree-sitter-cli.
* Inject tree-sitter-regex into `#match?` predicates
You might use a macro like `?MODULE` to name a record:
-record(?MODULE, {a, b, c}).
With this fix, the record fields correctly get `variable.other.member`
highlights.
* branch message with current branch and diverged branch has been
added to the parser
* scissors used in verbose commits are marked as a punctuation
delimiter
* we could use comment instead since they're visually the
same but IMO this works better
Punctuation highlights would show up outside of where they
were valid, for example using parentheses in some text. This
change prevents that by gating the captures to being under
the named nodes in which they are valid.
* add punctuation highlights for commas as in function parameters
* remove stray `variable.parameter` highlight
* I couldn't find any regressions from this and it fixes an
edge case I ran into (but sadly did not record 😓)
* highlight `fn` as `keyword.function`
* the theme docs have `fn` as an example so it seems fitting
The '#' character may either be interpreted as a map when used
like so:
%% Example 1
#{a => b}
Or as an operator which updates an existing map when the left-hand
side is an expression:
%% Example 2
MyMap#{a => b}
This commit changes the highlight to `punctuation.bracket` when used
as a character in a literal map (example 1) and keeps the `operator`
highlight when used for updating (example 2).
The update to the grammar itself covers the case where the document
is a single expression without a trailing newline such as "min(A, B)".
A small change to the parser now parses these expressions correctly
which improves the display of the function head in the signature
help popup.
The update to the queries marks 'andalso', 'orelse', 'not', etc. as
`@keyword.operator` which improves the look - it looks odd to see
operators that are words highlighted the same as tokens like '->'
or '=:='.
* str, list, etc. handled as @function.builtin and @type.builtin
* None and non-conforming type indentifiers as @type in type hints
* class identifiers treated as @type
* @constructor used for constructor definitions and calls rather than
as a catch-all for type-like things
* Parameters highlighted
* self and cls as @variable.builtin
* improved decorator highlighting as part of @function
Re-ordering of some statements to give more accurate priority.
* log textobject query construction errors
The current behavior is that invalid queries are discarded silently
which makes it difficult to debug invalid textobjects (either invalid
syntax or an update may have come through that changed the valid set
of nodes).
* fix golang textobject query
`method_spec_list` used to be a named node but was removed (I think
for Helix, it was when updated to pull in the support for generics).
Instead of a named node for the list of method specs we have a bunch
of `method_spec` children nodes now. We can match on the set of them
with a `+` wildcard.
Example go for this query:
type Shape interface {
area() float64
perimeter() float64
}
Which is parsed as:
(source_file
(type_declaration
(type_spec
name: (type_identifier)
type: (interface_type
(method_spec
name: (field_identifier)
parameters: (parameter_list)
result: (type_identifier))
(method_spec
name: (field_identifier)
parameters: (parameter_list)
result: (type_identifier))))))
HEEx is a templating engine on top of Elixir's EEx templating
language specific to HTML that is included in Phoenix.LiveView
(though I think the plan is to eventually include it in base
Phoenix). It's a superset of EEx with some additional features
like components and slots.
The injections don't work perfectly because the Elixir grammar is
newline sensitive (the _terminator rule). See
https://github.com/elixir-lang/tree-sitter-elixir/issues/24
for more information.
This will become more important with the HEEx grammar being added.
Error highlighting with the Elixir grammar is a bit jumpy because
in some scenarios, a bit of missing syntax can force tree-sitter to
give up on error recovery and mark the entire tree as an error.
This ends up looking bad when editing. We don't typically highlight
error nodes so I'm inclined to leave it out of the highlights here.
After the incremental parsing rewrite for injections (which was released
in 22.03 https://helix-editor.com/news/release-22-03-highlights/#incremental-injection-parsing-rewrite),
we can now do combined injections which lets us pull in some templating
grammars. The most notable of those is embedded-template - a pretty
straightforward grammar that covers ERB and EJS.
The grammar and highlights queries are shared between the two but they have
different injections.