mirror of
https://github.com/helix-editor/helix.git
synced 2024-09-11 18:58:00 +03:00
4ac94a5c43
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.
220 lines
4.8 KiB
Scheme
220 lines
4.8 KiB
Scheme
; The following code originates mostly from
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; https://github.com/elixir-lang/tree-sitter-elixir, with minor edits to
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; align the captures with helix. The following should be considered
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; Copyright 2021 The Elixir Team
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;
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; Licensed under the Apache License, Version 2.0 (the "License");
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; you may not use this file except in compliance with the License.
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; You may obtain a copy of the License at
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;
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; https://www.apache.org/licenses/LICENSE-2.0
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;
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; Unless required by applicable law or agreed to in writing, software
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; distributed under the License is distributed on an "AS IS" BASIS,
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; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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; See the License for the specific language governing permissions and
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; limitations under the License.
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; Reserved keywords
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["when" "and" "or" "not" "in" "not in" "fn" "do" "end" "catch" "rescue" "after" "else"] @keyword
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; Operators
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; * doc string
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(unary_operator
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operator: "@" @comment.block.documentation
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operand: (call
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target: (identifier) @comment.block.documentation.__attribute__
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(arguments
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[
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(string) @comment.block.documentation
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(charlist) @comment.block.documentation
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(sigil
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quoted_start: _ @comment.block.documentation
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quoted_end: _ @comment.block.documentation) @comment.block.documentation
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(boolean) @comment.block.documentation
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]))
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(#match? @comment.block.documentation.__attribute__ "^(moduledoc|typedoc|doc)$"))
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; * module attribute
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(unary_operator
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operator: "@" @variable.other.member
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operand: [
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(identifier) @variable.other.member
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(call
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target: (identifier) @variable.other.member)
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(boolean) @variable.other.member
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(nil) @variable.other.member
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])
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; * capture operator
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(unary_operator
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operator: "&"
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operand: [
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(integer) @operator
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(binary_operator
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left: [
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(call target: (dot left: (_) right: (identifier) @function))
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(identifier) @function
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] operator: "/" right: (integer) @operator)
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])
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(operator_identifier) @operator
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(unary_operator
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operator: _ @operator)
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(binary_operator
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operator: _ @operator)
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(dot
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operator: _ @operator)
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(stab_clause
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operator: _ @operator)
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; Literals
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(nil) @constant.builtin
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(boolean) @constant.builtin.boolean
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(integer) @constant.numeric.integer
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(float) @constant.numeric.float
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(alias) @namespace
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(call
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target: (dot
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left: (atom) @namespace))
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(char) @constant.character
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; Quoted content
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(interpolation "#{" @punctuation.special "}" @punctuation.special) @embedded
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(escape_sequence) @constant.character.escape
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[
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(atom)
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(quoted_atom)
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(keyword)
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(quoted_keyword)
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] @string.special.symbol
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[
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(string)
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(charlist)
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] @string
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; Note that we explicitly target sigil quoted start/end, so they are not overridden by delimiters
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(sigil
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(sigil_name) @__name__
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quoted_start: _ @string
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quoted_end: _ @string
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(#match? @__name__ "^[sS]$")) @string
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(sigil
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(sigil_name) @__name__
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quoted_start: _ @string.regexp
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quoted_end: _ @string.regexp
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(#match? @__name__ "^[rR]$")) @string.regexp
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(sigil
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(sigil_name) @__name__
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quoted_start: _ @string.special
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quoted_end: _ @string.special) @string.special
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; Calls
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; * definition keyword
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(call
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target: (identifier) @keyword
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(#match? @keyword "^(def|defdelegate|defexception|defguard|defguardp|defimpl|defmacro|defmacrop|defmodule|defn|defnp|defoverridable|defp|defprotocol|defstruct)$"))
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; * kernel or special forms keyword
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(call
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target: (identifier) @keyword
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(#match? @keyword "^(alias|case|cond|else|for|if|import|quote|raise|receive|require|reraise|super|throw|try|unless|unquote|unquote_splicing|use|with)$"))
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; * function call
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(call
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target: [
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; local
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(identifier) @function
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; remote
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(dot
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right: (identifier) @function)
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])
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; * just identifier in function definition
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(call
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target: (identifier) @keyword
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(arguments
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[
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(identifier) @function
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(binary_operator
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left: (identifier) @function
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operator: "when")
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])
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(#match? @keyword "^(def|defdelegate|defguard|defguardp|defmacro|defmacrop|defn|defnp|defp)$"))
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; * pipe into identifier (definition)
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(call
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target: (identifier) @keyword
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(arguments
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(binary_operator
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operator: "|>"
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right: (identifier) @variable))
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(#match? @keyword "^(def|defdelegate|defguard|defguardp|defmacro|defmacrop|defn|defnp|defp)$"))
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; * pipe into identifier (function call)
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(binary_operator
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operator: "|>"
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right: (identifier) @function)
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; Identifiers
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; * special
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(
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(identifier) @constant.builtin
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(#match? @constant.builtin "^(__MODULE__|__DIR__|__ENV__|__CALLER__|__STACKTRACE__)$")
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)
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; * unused
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(
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(identifier) @comment
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(#match? @comment "^_")
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)
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; * regular
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(identifier) @variable
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; Comment
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(comment) @comment
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; Punctuation
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[
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"%"
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] @punctuation
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[
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","
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";"
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] @punctuation.delimiter
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[
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"("
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")"
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"["
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"]"
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"{"
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"}"
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"<<"
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">>"
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] @punctuation.bracket
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