add `bass` language + highlighting (#3771)

3 files changed, 116 insertions, 0 deletions

diff --git a/book/src/generated/lang-support.md b/book/src/generated/lang-support.md
index faa2667e..86c26042 100644
--- a/book/src/generated/lang-support.md
+++ b/book/src/generated/lang-support.md
@@ -3,6 +3,7 @@
 | astro | ✓ |  |  |  |
 | awk | ✓ | ✓ |  | `awk-language-server` |
 | bash | ✓ |  |  | `bash-language-server` |
+| bass | ✓ |  |  | `bass` |
 | beancount | ✓ |  |  |  |
 | c | ✓ | ✓ | ✓ | `clangd` |
 | c-sharp | ✓ | ✓ |  | `OmniSharp` |
diff --git a/languages.toml b/languages.toml
index 1dda58ae..949dd372 100644
--- a/languages.toml
+++ b/languages.toml
@@ -1767,3 +1767,17 @@ indent = { tab-width = 2, unit = "  " }
 [[grammar]]
 name = "astro"
 source = { git = "https://github.com/virchau13/tree-sitter-astro", rev = "5f5c3e73c45967df9aa42f861fad2d77cd4e0900" }
+
+[[language]]
+name = "bass"
+scope = "source.bass"
+injection-regex = "bass"
+file-types = ["bass"]
+roots = []
+comment-token = ";"
+indent = { tab-width = 2, unit = "  " }
+language-server = { command = "bass", args = ["--lsp"] }
+
+[[grammar]]
+name = "bass"
+source = { git = "https://github.com/vito/tree-sitter-bass", rev = "501133e260d768ed4e1fd7374912ed5c86d6fd90" }
diff --git a/runtime/queries/bass/highlights.scm b/runtime/queries/bass/highlights.scm
new file mode 100644
index 00000000..f8b70fc1
--- /dev/null
+++ b/runtime/queries/bass/highlights.scm
@@ -0,0 +1,101 @@
+; GENERATED VIA https://github.com/vito/tree-sitter-bass
+
+;;; comments
+
+(comment) @comment.line
+
+;;; punctuation
+
+["(" ")" "[" "]" "{" "}"] @punctuation.bracket
+
+;;; constants
+
+[(ignore) (null)] @constant.builtin
+
+(bool) @constant.builtin.boolean
+
+(int) @constant.numeric.integer
+
+;;; strings
+
+;; string literals
+
+(string) @string
+(string (string_escape) @constant.character.escape)
+
+;; keywords (symbol literals)
+
+(keyword) @string.special.symbol
+
+;; paths
+
+(dot) @string.special.path
+(dotdot) @string.special.path
+(command) @string.special.path
+(subpath (symbol) @string.special.path)
+
+; slashes in a path denote a combiner call
+(subpath (slash) @function)
+
+
+
+;;; specific highlighting for builtins & special forms
+
+;; symbol classification based highlighting
+
+(list . (symbol) @keyword.control.conditional (#match? @keyword.control.conditional "^(if|case|cond|when)$"))
+(cons . (symbol) @keyword.control.conditional (#match? @keyword.control.conditional "^(if|case|cond|when)$"))
+
+(list . (symbol) @keyword.control.repeat (#match? @keyword.control.repeat "^(each)$"))
+(cons . (symbol) @keyword.control.repeat (#match? @keyword.control.repeat "^(each)$"))
+
+(list . (symbol) @label (#match? @label "^(def|defop|defn)$"))
+(cons . (symbol) @label (#match? @label "^(def|defop|defn)$"))
+
+(list . (symbol) @function.builtin (#match? @function.builtin "^(dump|mkfs|json|log|error|now|cons|wrap|unwrap|eval|make-scope|bind|meta|with-meta|null\\?|ignore\\?|boolean\\?|number\\?|string\\?|symbol\\?|scope\\?|sink\\?|source\\?|list\\?|pair\\?|applicative\\?|operative\\?|combiner\\?|path\\?|empty\\?|thunk\\?|\\+|\\*|quot|-|max|min|=|>|>=|<|<=|list->source|across|emit|next|reduce-kv|assoc|symbol->string|string->symbol|str|substring|trim|scope->list|string->fs-path|string->cmd-path|string->dir|subpath|path-name|path-stem|with-image|with-dir|with-args|with-cmd|with-stdin|with-env|with-insecure|with-label|with-port|with-tls|with-mount|thunk-cmd|thunk-args|resolve|start|addr|wait|read|cache-dir|binds\\?|recall-memo|store-memo|mask|list|list\\*|first|rest|length|second|third|map|map-pairs|foldr|foldl|append|filter|conj|list->scope|merge|apply|id|always|vals|keys|memo|succeeds\\?|run|last|take|take-all|insecure!|from|cd|wrap-cmd|mkfile|path-base|not)$"))
+(cons . (symbol) @function.builtin (#match? @function.builtin "^(dump|mkfs|json|log|error|now|cons|wrap|unwrap|eval|make-scope|bind|meta|with-meta|null\\?|ignore\\?|boolean\\?|number\\?|string\\?|symbol\\?|scope\\?|sink\\?|source\\?|list\\?|pair\\?|applicative\\?|operative\\?|combiner\\?|path\\?|empty\\?|thunk\\?|\\+|\\*|quot|-|max|min|=|>|>=|<|<=|list->source|across|emit|next|reduce-kv|assoc|symbol->string|string->symbol|str|substring|trim|scope->list|string->fs-path|string->cmd-path|string->dir|subpath|path-name|path-stem|with-image|with-dir|with-args|with-cmd|with-stdin|with-env|with-insecure|with-label|with-port|with-tls|with-mount|thunk-cmd|thunk-args|resolve|start|addr|wait|read|cache-dir|binds\\?|recall-memo|store-memo|mask|list|list\\*|first|rest|length|second|third|map|map-pairs|foldr|foldl|append|filter|conj|list->scope|merge|apply|id|always|vals|keys|memo|succeeds\\?|run|last|take|take-all|insecure!|from|cd|wrap-cmd|mkfile|path-base|not)$"))
+
+(list . (symbol) @function.macro (#match? @function.macro "^(op|fn|current-scope|quote|let|provide|module|or|and|->|curryfn|for|\\$|linux)$"))
+(cons . (symbol) @function.macro (#match? @function.macro "^(op|fn|current-scope|quote|let|provide|module|or|and|->|curryfn|for|\\$|linux)$"))
+
+(list . (symbol) @keyword.builtin (#match? @keyword.builtin "^(do|doc)$"))
+(cons . (symbol) @keyword.builtin (#match? @keyword.builtin "^(do|doc)$"))
+
+(list . (symbol) @keyword.control.import (#match? @keyword.control.import "^(use|import|load)$"))
+(cons . (symbol) @keyword.control.import (#match? @keyword.control.import "^(use|import|load)$"))
+
+
+;; special cases
+
+; [a & b] highlights & as operator rather than a regular symbol
+(list (symbol) @operator (#match? @operator "&"))
+(cons (symbol) @operator (#match? @operator "&"))
+
+; (-> x y z) highlights first x as var, y z as function
+(list
+  .
+  (symbol) @function.macro
+  (#eq? @function.macro "->")
+  .
+  (symbol) @variable.parameter
+  (symbol) @function)
+
+; (-> 42 x y) highlights 42 as regular number
+(list
+  .
+  (symbol) @function.macro
+  (#eq? @function.macro "->")
+  .
+  (_)
+  (symbol) @function)
+
+;;; generic highlighting for all forms
+
+; first symbol in a list form is a combiner call
+(list . (symbol) @function)
+
+; highlight symbols as vars only when they're clearly vars
+(cons (symbol) @variable)
+(scope (symbol) @variable)
+(path form: (symbol) @variable)
+(symbind form: (symbol) @variable)