Add minimum implementation for highlights

queries/perl/highlights.scm

@@ -0,0 +1,169 @@
+; Variables
+(variable_declaration
+  .
+  (scope) @keyword)
+[
+(single_var_declaration)
+(scalar_variable)
+(array_variable)
+(hash_variable)
+(hash_variable)
+] @variable
+
+
+[
+(package_name)
+(special_variable)
+(special_literal)
+(super)
+] @constant
+
+(
+  [
+  (package_name)
+  (super)
+  ]
+  .
+  ("::" @constant)
+)
+
+(comments) @comment
+(pod_statement) @comment
+
+[
+(use_no_statement)
+(use_no_feature_statement)
+(use_no_if_statement)
+(use_no_version)
+(use_constant_statement)
+(use_parent_statement)
+] @include
+
+(use_constant_statement
+  constant: (identifier) @constant)
+
+[
+"require"
+] @include
+
+(method_invocation
+  .
+  (identifier) @variable)
+
+(method_invocation
+  (arrow_operator)
+  .
+  (identifier) @function)
+(method_invocation
+  function_name: (identifier) @function)
+(named_block_statement
+  function_name: (identifier) @function)
+
+(call_expression
+  function_name: (identifier) @function)
+(function_definition
+  name: (identifier) @function)
+[
+(function)
+(map)
+(grep)
+(bless)
+] @function
+
+[
+"return"
+"sub"
+"package"
+"BEGIN"
+"END"
+] @keyword.function
+
+[
+"("
+")"
+"["
+"]"
+"{"
+"}"
+] @punctuation.bracket
+(standard_input_to_variable) @punctuation.bracket
+
+[
+"=~"
+"or"
+"="
+"=="
+"+"
+"-"
+"."
+"//"
+"||"
+(arrow_operator)
+(hash_arrow_operator)
+(array_dereference)
+(hash_dereference)
+(to_reference)
+(type_glob)
+(hash_access_variable)
+(ternary_expression)
+(ternary_expression_in_hash)
+] @operator
+
+[
+(regex_option)
+(regex_option_for_substitution)
+(regex_option_for_transliteration)
+] @parameter
+
+(type_glob
+  (identifier) @variable)
+(
+  (scalar_variable)
+  .
+  ("->" @operator))
+
+[
+(word_list_qw)
+(command_qx_quoted)
+(string_single_quoted)
+(string_double_quoted)
+(string_qq_quoted)
+(bareword)
+(regex_pattern_qr) 
+(patter_matcher_m)
+(substitution_pattern_s)
+(transliteration_tr_or_y)
+] @string
+
+(escape_sequence) @string.escape
+
+[
+","
+(semi_colon)
+(start_delimiter)
+(end_delimiter)
+(ellipsis_statement)
+] @punctuation.delimiter
+
+[
+(integer)
+(floating_point)
+(scientific_notation)
+(hexadecimal)
+] @number
+
+[
+(if_statement)
+(unless_statement)
+(if_simple_statement)
+(unless_simple_statement)
+] @conditional
+
+(foreach_statement) @repeat
+(foreach_statement
+  .
+  (scope) @keyword)
+
+(function_attribute) @field
+
+(function_signature) @type