; SCL highlights

(line_comment) @comment
(block_comment) @comment
(c_style_comment) @comment

(number) @number
(hex_number) @number
(string) @string
(time_value) @number

(prefix) @punctuation.special

(identifier) @variable

; FB instance calls - highlight instance name as type
(fb_call
  instance: (prefixed_identifier
    (identifier) @type))
(fb_call
  instance: (identifier) @type)

; FB parameter names (IN :=, PT :=, etc.)
(fb_parameter
  name: (identifier) @property)

; Function call names
(function_call
  (identifier) @function)

; Variable declarations
(var_item
  name: (identifier) @variable)

; Type references in declarations
(type
  (identifier) @type)

(type_builtin) @type.builtin

(keyword) @keyword
(constant) @constant.builtin
(operator) @operator

(assignment) @operator
(binary_expression) @operator
(unary_expression) @operator

(field_access
  "."
  (identifier) @property)

(array_access) @property

(attribute_list) @attribute
(attribute) @attribute
(attribute_value) @string

(var_item) @property

(function_call) @function.call
(fb_call) @function.call

(if_statement) @conditional
(elsif_clause) @conditional
(else_clause) @conditional
(case_statement) @conditional
(case_item) @conditional

(for_statement) @repeat
(while_statement) @repeat
(repeat_statement) @repeat

";" @punctuation.delimiter
":" @punctuation.delimiter
"," @punctuation.delimiter
"(" @punctuation.bracket
")" @punctuation.bracket
"[" @punctuation.bracket
"]" @punctuation.bracket
"." @punctuation.delimiter

":=" @operator
"=>" @operator
"=" @operator
"<>" @operator
"<" @operator
">" @operator
"<=" @operator
">=" @operator

"+" @operator
"-" @operator
"*" @operator
"/" @operator