diff --git a/sh/core/code.awk b/sh/core/code.awk
index 6c96920..0e7042c 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -110,49 +110,49 @@ BEGIN {
 # │ code │ begin │ constants │
 # ╰──────┴───────┴───────────╯
 
-RECORD_SEPARATOR = "\036"
-UNIT_SEPARATOR = "\037"
+	RECORD_SEPARATOR = "\036"
+	UNIT_SEPARATOR = "\037"
 
 # ╭──────┬───────┬───────────┬───────╮
 # │ code │ begin │ constants │ regex │
 # ╰──────┴───────┴───────────┴───────╯
 
-RE_ANY = "(.*)"
-RE_BEGIN = "^"
-RE_CONST = "([_A-Z][_0-9A-Z]*)"
-RE_SET = "=.*"
-RE_SPACE = "[[:space:]]"
-RE_TSK = "(FIXME|TODO)"
-RE_VAR = "([_a-z][_0-9a-z]*)"
+	RE_ANY = "(.*)"
+	RE_BEGIN = "^"
+	RE_CONST = "([_A-Z][_0-9A-Z]*)"
+	RE_SET = "=.*"
+	RE_SPACE = "[[:space:]]"
+	RE_TSK = "(FIXME|TODO)"
+	RE_VAR = "([_a-z][_0-9a-z]*)"
 
-RE_SPACES = RE_SPACE "*"
+	RE_SPACES = RE_SPACE "*"
 
-RE_END = RE_SPACES "$"
-RE_FUNC = RE_SPACES "\\(" RE_SPACES "\\)" RE_SPACES
+	RE_END = RE_SPACES "$"
+	RE_FUNC = RE_SPACES "\\(" RE_SPACES "\\)" RE_SPACES
 
-re["alias"] = RE_BEGIN "#=" RE_SPACES RE_VAR RE_END
-re["binary"] = RE_BEGIN "#\\|" RE_SPACES RE_VAR RE_END
-RE_CLOSE = RE_BEGIN RE_ANY "}" RE_SPACES RE_END
-re["command"] = RE_BEGIN "#/" RE_SPACES RE_VAR RE_END
-RE_COMMENT = RE_BEGIN RE_SPACES "#" RE_ANY RE_END
-re["constant"] = RE_BEGIN RE_CONST RE_SET RE_END
-RE_DOC = RE_BEGIN RE_SPACES "# " RE_ANY RE_END
-re["function"] = RE_BEGIN RE_VAR RE_FUNC RE_ANY RE_END
-RE_MODULE = RE_BEGIN "#\\." RE_SPACES RE_ANY RE_END
-RE_SHEBANG = RE_BEGIN "#!" RE_SPACES RE_ANY RE_END
-RE_TASK = RE_BEGIN RE_SPACES "#" RE_SPACES RE_TSK RE_ANY RE_END
-re["variable"] = RE_BEGIN RE_VAR RE_SET RE_END
+	re["alias"] = RE_BEGIN "#=" RE_SPACES RE_VAR RE_END
+	re["binary"] = RE_BEGIN "#\\|" RE_SPACES RE_VAR RE_END
+	RE_CLOSE = RE_BEGIN RE_ANY "}" RE_SPACES RE_END
+	re["command"] = RE_BEGIN "#/" RE_SPACES RE_VAR RE_END
+	RE_COMMENT = RE_BEGIN RE_SPACES "#" RE_ANY RE_END
+	re["constant"] = RE_BEGIN RE_CONST RE_SET RE_END
+	RE_DOC = RE_BEGIN RE_SPACES "# " RE_ANY RE_END
+	re["function"] = RE_BEGIN RE_VAR RE_FUNC RE_ANY RE_END
+	RE_MODULE = RE_BEGIN "#\\." RE_SPACES RE_ANY RE_END
+	RE_SHEBANG = RE_BEGIN "#!" RE_SPACES RE_ANY RE_END
+	RE_TASK = RE_BEGIN RE_SPACES "#" RE_SPACES RE_TSK RE_ANY RE_END
+	re["variable"] = RE_BEGIN RE_VAR RE_SET RE_END
 
 # ╭──────┬───────┬───────────╮
 # │ code │ begin │ variables │
 # ╰──────┴───────┴───────────╯
 
-current_function = ""
-current_match = ""
-doc = ""
-line = 0
-lint = ""
-module = ""
+	current_function = ""
+	current_match = ""
+	doc = ""
+	line = 0
+	lint = ""
+	module = ""
 
 # begin
 }
@@ -252,7 +252,7 @@ function parse(string) {
 # │ code │ main │ parse │
 # ╰──────┴──────┴───────╯
 
-# TODO parse($0)
+# TODO parse
 
 # ╭──────┬──────┬──────╮
 # │ code │ main │ exit │