diff --git a/sh/core/code.awk b/sh/core/code.awk
index fd4f59e..a58c08c 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -106,6 +106,17 @@ function strip_value(string) {
 
 BEGIN {
 
+# ╭──────┬───────┬───────────╮
+# │ code │ begin │ constants │
+# ╰──────┴───────┴───────────╯
+
+RECORD_SEPARATOR = "\036"
+UNIT_SEPARATOR = "\037"
+
+# ╭──────┬───────┬───────────┬───────╮
+# │ code │ begin │ constants │ regex │
+# ╰──────┴───────┴───────────┴───────╯
+
 RE_ANY = "(.*)"
 RE_BEGIN = "^"
 RE_CONST = "([_A-Z][_0-9A-Z]*)"
@@ -132,6 +143,10 @@ 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 = ""