Some Highlighter additions

languages/nextflow/highlights.scm

@@ -2,18 +2,56 @@
 ;
 
 (include) @keyword.import
+(include_item) @emphasis.strong
+
+(expression_statement) @expression_statement
+(assignment_statement) @expression_statement
 
 (number) @number
 (closure) @closure
+(parameter) @parameter
+
 (workflow_definition) @type.definition
-(output_declaration) @type.definition
-(directive) @keyword.directive
-(binary_expression) @operator
+(workflow_body) @string
+(workflow_input) @type.definition
+(workflow_main) @type.definition
+(workflow_emit) @type.definition
+
 (process_invocation) @module
-(parameter) @parameter
-(include) @keyword.directive
+(process_definition) @type.definition
+(process_output) @type.definition
+
+(block) @operator
+(input_block) @emphasis.strong
+(output_block) @emphasis.strong
+(script_block) @emphasis.strong
+(directive_block) @emphasis.strong
+
+(directive) @text
+(channel_expression) @function.call
+
+(channel_from) @keyword.directive
+(channel_value) @keyword.directive
+(channel_of) @keyword.directive
+(channel_from_list) @keyword.directive
+
+(map) @keyword.directive
+(map_entry) @keyword.directive.define
+(map_operation) @keyword.operator
+(pipe_expression) @keyword.directive
+
+(input_declaration) @type.definition
+(output_declaration) @type.definition
+(script_content) @text
+
+(command_expression) @variable
 (variable_declaration) @keyword.directive
 
+(if_statement) @type.interface
+(else_if_clause) @type.interface
+(else_clause) @type.interface
+
+(binary_expression) @operator
 
 [
   "true"
@@ -49,3 +87,5 @@
   "&&" "||" "+" "*" ] @operator
 
 (assignment ("=") @operator)
+
+(feature_flag) @keyword.import