feat: add support for C#

README.md

@@ -206,6 +206,7 @@ By default, TreeSJ has presets for these languages:
 - **Rust**;
 - **R**;
 - **C/C++**;
+- **C#**;
 - **Nix**;
 - **Kotlin**;
 - **Bash**;

doc/treesj.txt

@@ -212,6 +212,7 @@ By default, TreeSJ has presets for these languages:
 - **Rust**;
 - **R**;
 - **C/C++**;
+- **C#**;
 - **Nix**;
 - **Kotlin**;
 - **Bash**;

lua/treesj/langs/c_sharp.lua

@@ -0,0 +1,83 @@
+local lang_utils = require('treesj.langs.utils')
+
+local args = lang_utils.set_preset_for_args()
+local list_no_space = lang_utils.set_preset_for_list({
+  join = {
+    space_in_brackets = false,
+  },
+})
+local list_space = lang_utils.set_preset_for_list()
+local statement = lang_utils.set_preset_for_statement()
+local target_args = { target_nodes = { 'argument_list' } }
+local target_block = { target_nodes = { 'block' } }
+local target_creation = {
+  target_nodes = { 'argument_list', 'initializer_expression' },
+}
+local target_param_list = { target_nodes = { 'parameter_list' } }
+local type_args = lang_utils.set_preset_for_args({
+  both = {
+    last_separator = false,
+  },
+})
+
+return {
+  accessor_list = statement,
+  argument_list = args,
+  attribute = {
+    target_nodes = { 'attribute_argument_list' },
+  },
+  attribute_argument_list = args,
+  attribute_list = list_no_space,
+  block = statement,
+  bracketed_argument_list = args,
+  bracketed_parameter_list = args,
+  catch_clause = target_block,
+  checked_statement = target_block,
+  collection_expression = list_no_space,
+  constructor_declaration = target_param_list,
+  constructor_initializer = target_args,
+  conversion_operator_declaration = target_param_list,
+  delegate_declaration = target_param_list,
+  do_statement = target_block,
+  element_access_expression = {
+    target_nodes = { 'bracketed_argument_list' },
+  },
+  element_binding_expression = args,
+  enum_declaration = {
+    target_nodes = { 'enum_member_declaration_list' },
+  },
+  enum_member_declaration_list = list_space,
+  finally_clause = target_block,
+  fixed_statement = target_block,
+  for_statement = target_block,
+  foreach_statement = target_block,
+  if_statement = target_block,
+  implicit_object_creation_expression = target_creation,
+  indexer_declaration = {
+    target_nodes = { 'bracketed_parameter_list' },
+  },
+  initializer_expression = list_space,
+  invocation_expression = target_args,
+  list_pattern = list_no_space,
+  local_function_statement = target_param_list,
+  lock_statement = target_block,
+  method_declaration = target_param_list,
+  object_creation_expression = target_creation,
+  operator_declaration = target_param_list,
+  parameter_list = args,
+  property_pattern_clause = list_space,
+  switch_expression = lang_utils.set_preset_for_list({
+    both = {
+      -- don't format the thing being evaluated or the `switch` keyword
+      shrink_node = { from = '{', to = '}' },
+    },
+  }),
+  try_statement = target_block,
+  tuple_expression = args,
+  tuple_type = args,
+  type_argument_list = type_args,
+  type_parameter_list = type_args,
+  unsafe_statement = target_block,
+  using_statement = target_block,
+  while_statement = target_block,
+}

lua/treesj/langs/init.lua

@@ -26,6 +26,7 @@ M.configured_langs = {
   'r',
   'cpp',
   'c',
+  'c_sharp',
   'toml',
   'yaml',
   'nix',