diff --git a/sh/core/code.awk b/sh/core/code.awk
index f2d8c50..3cfbc70 100644
--- a/sh/core/code.awk
+++ b/sh/core/code.awk
@@ -1,6 +1,10 @@
-# code
+# ╭──────╮
+# │ code │
+# ╰──────╯
 
-# functions
+# ╭──────┬───────────╮
+# │ code │ functions │
+# ╰──────┴───────────╯
 
 function alias_eval(new, name, type) {
 	text = new "() { "
@@ -12,26 +16,6 @@ function alias_eval(new, name, type) {
 	print text "; }"
 }
 
-function doc_append(string) {
-	if (doc) {
-		doc = doc "\n"
-	}
-	doc = doc string
-}
-
-function doc_output(name, type) {
-	print "↙ " type
-	print name
-	print doc
-	exit
-}
-
-function doc_reset() {
-	if (current_function == "") {
-		doc = ""
-	}
-}
-
 # TODO delete when useless
 function extract(string, type) {
 	if (type == "alias") {
@@ -58,6 +42,34 @@ function extract(string, type) {
 	}
 }
 
+# ╭──────┬───────────┬─────╮
+# │ code │ functions │ doc │
+# ╰──────┴───────────┴─────╯
+
+function doc_append(string) {
+	if (doc) {
+		doc = doc "\n"
+	}
+	doc = doc string
+}
+
+function doc_output(name, type) {
+	print "↙ " type
+	print name
+	print doc
+	exit
+}
+
+function doc_reset() {
+	if (current_function == "") {
+		doc = ""
+	}
+}
+
+# ╭──────┬───────────┬───────╮
+# │ code │ functions │ strip │
+# ╰──────┴───────────┴───────╯
+
 function strip(string, tmp) {
 	tmp = string
 	sub("^[\t ]*", "", tmp)
@@ -88,7 +100,10 @@ function strip_value(string) {
 	return strip_from(string, "=")
 }
 
-# → begin
+# ╭──────┬───────╮
+# │ code │ begin │
+# ╰──────┴───────╯
+
 BEGIN {
 
 RE_ANY = "(.*)"
@@ -117,10 +132,12 @@ 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
 
-# ← begin
 }
 
-# parse
+# ╭──────┬───────╮
+# │ code │ parse │
+# ╰──────┴───────╯
+
 function parse(string) {
 
 	# module
@@ -190,13 +207,17 @@ function parse(string) {
 
 	}
 
+	# close
 	if (match(string, RE_CLOSE)) {
 		current_match = "close"
 	}
 
 }
 
-# → main
+# ╭──────┬──────╮
+# │ code │ main │
+# ╰──────┴──────╯
+
 {
 
 # doc
@@ -221,6 +242,7 @@ if (action == "doc") {
 			variable = ""
 		}
 
+	# match
 	}
 
 	# function
@@ -272,6 +294,7 @@ if (action == "doc") {
 		doc = ""
 		match_task = 0
 
+	# match
 	}
 
 # function
@@ -316,14 +339,17 @@ if (action == "doc") {
 	print "unknown action: " action
 	exit 1
 
-# ← action
+# action
 }
 
-# ← main
+# main
 	line++
 }
 
-# → end
+# ╭──────┬─────╮
+# │ code │ end │
+# ╰──────┴─────╯
+
 END {
 
 # filter
@@ -332,8 +358,8 @@ if (action == "filter") {
 		print item
 	}
 
-# ← end / action
+# action
 }
 
-# ← end
+# end
 }