add tree-sitter-gleam

4 files changed, 130 insertions, 0 deletions

diff --git a/book/src/generated/lang-support.md b/book/src/generated/lang-support.md
index 35a10c0f..34e65e46 100644
--- a/book/src/generated/lang-support.md
+++ b/book/src/generated/lang-support.md
@@ -17,6 +17,7 @@
 | git-config | ✓ |  |  |  |
 | git-diff | ✓ |  |  |  |
 | git-rebase | ✓ |  |  |  |
+| gleam | ✓ |  |  |  |
 | glsl | ✓ |  | ✓ |  |
 | go | ✓ | ✓ | ✓ | `gopls` |
 | graphql | ✓ |  |  |  |
diff --git a/languages.toml b/languages.toml
index ce51e4fc..3439d7f0 100644
--- a/languages.toml
+++ b/languages.toml
@@ -1003,3 +1003,16 @@ language-server = { command = "solc", args = ["--lsp"] }
 [[grammar]]
 name = "solidity"
 source = { git = "https://github.com/slinlee/tree-sitter-solidity", rev = "f3a002274744e859bf64cf3524985f8c31ea84fd" }
+
+[[language]]
+name = "gleam"
+scope = "source.gleam"
+injection-regex = "gleam"
+file-types = ["gleam"]
+roots = ["gleam.toml"]
+comment-token = "//"
+indent = { tab-width = 2, unit = "  " }
+
+[[grammar]]
+name = "gleam"
+source = { git = "https://github.com/gleam-lang/tree-sitter-gleam", rev = "7159ce961592192b0e7cdf88782cda0fdf41a4cb" }
diff --git a/runtime/queries/gleam/highlights.scm b/runtime/queries/gleam/highlights.scm
new file mode 100644
index 00000000..ed3fceca
--- /dev/null
+++ b/runtime/queries/gleam/highlights.scm
@@ -0,0 +1,101 @@
+; Comments
+(module_comment) @comment
+(statement_comment) @comment
+(comment) @comment
+
+; Constants
+(constant
+  name: (identifier) @constant)
+
+; Modules
+(module) @namespace
+(import alias: (identifier) @namespace)
+(remote_type_identifier
+  module: (identifier) @namespace)
+((field_access
+  record: (identifier) @namespace
+  field: (label) @function)
+ (#is-not? local))
+
+; Functions
+(unqualified_import (identifier) @function)
+(function
+  name: (identifier) @function)
+(external_function
+  name: (identifier) @function)
+(function_parameter
+  name: (identifier) @variable.parameter)
+((function_call
+   function: (identifier) @function)
+ (#is-not? local))
+((binary_expression
+   operator: "|>"
+   right: (identifier) @function)
+ (#is-not? local))
+
+; "Properties"
+; Assumed to be intended to refer to a name for a field; something that comes
+; before ":" or after "."
+; e.g. record field names, tuple indices, names for named arguments, etc
+(label) @variable.other.member
+(tuple_access
+  index: (integer) @variable.other.member)
+
+; Type names
+(remote_type_identifier) @type
+(type_identifier) @type
+
+; Literals
+(string) @string
+(bit_string_segment_option) @function.builtin
+(integer) @constant.numeric.integer
+(float) @constant.numeric.float
+
+; Variables
+(identifier) @variable
+(discard) @comment.unused
+
+; Operators
+(binary_expression
+  operator: _ @operator)
+
+; Keywords
+[
+  (visibility_modifier) ; "pub"
+  (opacity_modifier) ; "opaque"
+  "as"
+  "assert"
+  "case"
+  "const"
+  "external"
+  "fn"
+  "if"
+  "import"
+  "let"
+  "todo"
+  "try"
+  "type"
+] @keyword
+
+; Punctuation
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+  "<<"
+  ">>"
+] @punctuation.bracket
+[
+  "."
+  ","
+  ;; Controversial -- maybe some are operators?
+  ":"
+  "#"
+  "="
+  "->"
+  ".."
+  "-"
+] @punctuation.delimiter
diff --git a/runtime/queries/gleam/locals.scm b/runtime/queries/gleam/locals.scm
new file mode 100644
index 00000000..bd5903e5
--- /dev/null
+++ b/runtime/queries/gleam/locals.scm
@@ -0,0 +1,15 @@
+; Scopes
+(function_body) @local.scope
+
+(case_clause) @local.scope
+
+; Definitions
+(let pattern: (identifier) @local.definition)
+(function_parameter name: (identifier) @local.definition)
+(list_pattern (identifier) @local.definition)
+(list_pattern assign: (identifier) @local.definition)
+(tuple_pattern (identifier) @local.definition)
+(record_pattern_argument pattern: (identifier) @local.definition)
+
+; References
+(identifier) @local.reference