lang: Add tag for brace-delimited code blocks (#1332)

## Problem

Several languages had the same, or similar, copy-pasted implementations
of `code_block` to insert braces and leave the cursor on a blank line
between them. These all assume the editor will appropriately expand
<kbd>enter</kbd> between brackets, which isn't true for all editors.

The C# implementation implemented the same idea, but appears to assume
<kbd>enter</kbd> _isn't_ expanded.

Furthermore, some C-like languages were missing a `code_block` impl
entirely.

## Solution

Similar to #720, this adds a common implementation for braced code
blocks, which can be overridden on a per-editor basis, and adds the tag
to the appropriate languages.

lang/c/c.talon

@@ -2,6 +2,7 @@ code.language: c
 -
 tag(): user.code_imperative
 
+tag(): user.code_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_comment_block_c_like
 tag(): user.code_data_bool

lang/csharp/csharp.py

@@ -116,10 +116,6 @@ def code_operator_bitwise_right_shift():
     def code_operator_bitwise_right_shift_assignment():
         actions.auto_insert(" >>= ")
 
-    def code_block():
-        actions.insert("{}")
-        actions.key("left enter enter up tab")
-
     def code_self():
         actions.auto_insert("this")
 

lang/csharp/csharp.talon

@@ -3,6 +3,7 @@ code.language: csharp
 tag(): user.code_imperative
 tag(): user.code_object_oriented
 
+tag(): user.code_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_comment_block_c_like
 tag(): user.code_data_bool

lang/css/css.py

@@ -107,10 +107,6 @@
 
 @ctx.action_class("user")
 class UserActions:
-    def code_block():
-        actions.user.insert_between("{", "}")
-        actions.key("enter")
-
     def code_operator_addition():
         actions.insert(" + ")
 

lang/css/css.talon

@@ -1,6 +1,7 @@
 code.language: css
 code.language: scss
 -
+tag(): user.code_block_c_like
 tag(): user.code_comment_block_c_like
 tag(): user.code_functions_common
 tag(): user.code_libraries

lang/java/java.talon

@@ -3,6 +3,7 @@ code.language: java
 tag(): user.code_imperative
 tag(): user.code_object_oriented
 
+tag(): user.code_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_comment_block_c_like
 tag(): user.code_data_bool

lang/javascript/javascript.py

@@ -92,10 +92,6 @@ def code_state_else():
         actions.user.insert_between(" else {", "}")
         actions.key("enter")
 
-    def code_block():
-        actions.user.insert_between("{", "}")
-        actions.key("enter")
-
     def code_self():
         actions.auto_insert("this")
 

lang/javascript/javascript.talon

@@ -6,6 +6,7 @@ code.language: typescriptreact
 tag(): user.code_imperative
 tag(): user.code_object_oriented
 
+tag(): user.code_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_comment_block_c_like
 tag(): user.code_data_bool

lang/php/php.py

@@ -27,11 +27,6 @@ def code_operator_object_accessor():
     def code_define_class():
         actions.auto_insert("class ")
 
-    def code_block():
-        actions.insert("{}")
-        actions.edit.left()
-        actions.key("enter")
-
     def code_import():
         actions.auto_insert("use ;")
         actions.edit.left()

lang/php/php.talon

@@ -4,6 +4,7 @@ tag(): user.code_imperative
 tag(): user.code_object_oriented
 tag(): user.code_libraries
 
+tag(): user.code_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_comment_block
 tag(): user.code_comment_documentation

lang/proto/proto.talon

@@ -1,7 +1,10 @@
 code.language: protobuf
 -
+tag(): user.code_block_c_like
 
 # this is pretty bare-bones, further contributions welcome
+block: user.code_block()
+
 state message: "message "
 state package: "package "
 state reserved: "reserved "

lang/r/r.talon

@@ -2,6 +2,7 @@ code.language: r
 -
 tag(): user.code_imperative
 
+tag(): user.code_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_data_bool
 tag(): user.code_data_null

lang/rust/rust.py

@@ -236,11 +236,6 @@ def code_comment_documentation():
 
     # tag: imperative
 
-    def code_block():
-        actions.auto_insert("{}")
-        actions.edit.left()
-        actions.key("enter")
-
     def code_state_if():
         actions.auto_insert("if ")
 

lang/rust/rust.talon

@@ -4,6 +4,7 @@ tag(): user.code_comment_line
 tag(): user.code_comment_block_c_like
 tag(): user.code_comment_documentation
 
+tag(): user.code_block_c_like
 tag(): user.code_imperative
 tag(): user.code_object_oriented
 

lang/scala/scala.py

@@ -86,11 +86,6 @@
 
 @ctx.action_class("user")
 class UserActions:
-    def code_block():
-        actions.insert("{}")
-        actions.edit.left()
-        actions.key("enter")
-
     def code_operator_lambda():
         actions.insert(" => ")
 

lang/scala/scala.talon

@@ -3,6 +3,7 @@ code.language: scala
 tag(): user.code_imperative
 tag(): user.code_object_oriented
 
+tag(): user.code_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_comment_block_c_like
 tag(): user.code_data_bool

lang/tags/imperative.py

@@ -1,12 +1,17 @@
-from talon import Context, Module
+from talon import Context, Module, actions
 
-ctx = Context()
+c_like_ctx = Context()
 mod = Module()
 
 mod.tag(
     "code_imperative",
     desc="Tag for enabling basic imperative programming commands (loops, functions, etc)",
 )
+mod.tag("code_block_c_like", desc="Language uses C style code blocks, i.e. braces")
+
+c_like_ctx.matches = """
+tag: self.code_block_c_like
+"""
 
 
 @mod.action_class
@@ -58,3 +63,10 @@ def code_next():
 
     def code_try_catch():
         """Inserts try/catch. If selection is true, does so around the selection"""
+
+
+@c_like_ctx.action_class("self")
+class CActions:
+    def code_block():
+        actions.user.insert_between("{", "}")
+        actions.key("enter")

lang/terraform/terraform.talon

@@ -1,5 +1,6 @@
 code.language: terraform
 -
+tag(): user.code_block_c_like
 tag(): user.code_comment_block_c_like
 tag(): user.code_comment_line
 tag(): user.code_data_bool
@@ -9,6 +10,8 @@ tag(): user.code_operators_assignment
 tag(): user.code_operators_lambda
 tag(): user.code_operators_math
 
+block: user.code_block()
+
 state {user.terraform_module_block}:
     user.code_terraform_module_block(user.terraform_module_block)