CMake support (helix-editor#888)

.gitmodules

@@ -130,3 +130,7 @@
 	path = helix-syntax/languages/tree-sitter-tsq
 	url = https://github.com/tree-sitter/tree-sitter-tsq
 	shallow = true
+[submodule "helix-syntax/languages/tree-sitter-cmake"]
+	path = helix-syntax/languages/tree-sitter-cmake
+	url = https://github.com/uyha/tree-sitter-cmake
+	shallow = true

languages.toml

@@ -346,3 +346,11 @@ file-types = ["scm"]
 roots = []
 comment-token = ";"
 indent = { tab-width = 2, unit = "  " }
+
+[[language]]
+name = "cmake"
+scope = "source.cmake"
+file-types = ["cmake", "CMakeLists.txt"]
+roots = []
+comment-token = "#"
+indent = { tab-width = 2, unit = "  " }

runtime/queries/cmake/highlights.scm

@@ -0,0 +1,97 @@
+[
+  (quoted_argument)
+  (bracket_argument)
+ ] @string
+
+(variable) @variable
+
+[
+  (bracket_comment)
+  (line_comment)
+ ] @comment
+
+(normal_command (identifier) @function)
+
+["ENV" "CACHE"] @string.special.symbol
+["$" "{" "}" "<" ">"] @punctuation
+["(" ")"] @punctuation.bracket
+
+[
+  (function)
+  (endfunction)
+  (macro)
+  (endmacro)
+ ] @keyword.function
+
+[
+  (if)
+  (elseif)
+  (else)
+  (endif)
+ ] @keyword.control.conditional
+
+[
+  (foreach)
+  (endforeach)
+  (while)
+  (endwhile)
+ ] @keyword.control.repeat
+
+(function_command
+   (function)
+   . (argument) @function
+   (argument)* @variable.parameter
+ )
+
+(macro_command
+   (macro)
+   . (argument) @function.macro
+   (argument)* @variable.parameter
+ )
+
+(normal_command
+  (identifier) @function.builtin
+  . (argument) @variable
+  (#match? @function.builtin "^(?i)(set)$"))
+
+(normal_command
+  (identifier) @function.builtin
+  . (argument)
+  (argument) @constant
+  (#match? @constant "^(?:PARENT_SCOPE|CACHE)$")
+  (#match? @function.builtin "^(?i)(unset)$"))
+
+(normal_command
+  (identifier) @function.builtin
+  . (argument)
+  . (argument)
+  (argument) @constant
+  (#match? @constant "^(?:PARENT_SCOPE|CACHE|FORCE)$")
+  (#match? @function.builtin "^(?i)(set)$")
+ )
+
+((argument) @constant.builtin.boolean
+   (#match? @constant.builtin.boolean "^(?i)(?:1|on|yes|true|y|0|off|no|false|n|ignore|notfound|.*-notfound)$")
+ )
+
+(if_command
+   (if)
+   (argument) @operator
+   (#match? @operator "^(?:NOT|AND|OR|COMMAND|POLICY|TARGET|TEST|DEFINED|IN_LIST|EXISTS|IS_NEWER_THAN|IS_DIRECTORY|IS_SYMLINK|IS_ABSOLUTE|MATCHES|LESS|GREATER|EQUAL|LESS_EQUAL|GREATER_EQUAL|STRLESS|STRGREATER|STREQUAL|STRLESS_EQUAL|STRGREATER_EQUAL|VERSION_LESS|VERSION_GREATER|VERSION_EQUAL|VERSION_LESS_EQUAL|VERSION_GREATER_EQUAL)$")
+)
+
+(normal_command
+   (identifier) @function.builtin
+   . (argument)
+   (argument) @constant
+   (#match? @constant "^(?:ALL|COMMAND|DEPENDS|BYPRODUCTS|WORKING_DIRECTORY|COMMENT|JOB_POOL|VERBATIM|USES_TERMINAL|COMMAND_EXPAND_LISTS|SOURCES)$")
+   (#match? @function.builtin "^(?i)(add_custom_target)$")
+ )
+
+(normal_command
+   (identifier) @function.builtin
+   (argument) @constant
+   (#match? @constant "^(?:OUTPUT|COMMAND|MAIN_DEPENDENCY|DEPENDS|BYPRODUCTS|IMPLICIT_DEPENDS|WORKING_DIRECTORY|COMMENT|DEPFILE|JOB_POOL|VERBATIM|APPEND|USES_TERMINAL|COMMAND_EXPAND_LISTS)$")
+   (#match? @function.builtin "^(?i)(add_custom_command)$")
+ )
+