subset/file,root

sh/main.sh

@@ -1,4 +1,5 @@
 #! /usr/bin/env sh
+# main module
 
 # ╭──────╮
 # │ main │
@@ -8,6 +9,7 @@
 # │ main │ constants │
 # ╰──────┴───────────╯
 
+# name of the entrypoint file
 RWX_MAIN_NAME="main.sh"
 RWX_SELF_NAME="rwx"
 
@@ -61,44 +63,20 @@ rwx_main() {
 # │ main │ cache │
 # ╰──────┴───────╯
 
+RWX_CODE=""
+
+# cache source code of a module
 rwx_cache() {
 	local root="${1}"
 	local module="${2}"
 	local name="${module%.sh}"
 	local path="${root}/${module}"
-	local fill text
-	fill="$(rwx_fill "${#name}" ─)"
+	local text
 	text="$(cat "${path}")"
-	case "${text}" in
-	"#!"*)
-		RWX_CODE="${text}
-
-# ╭───┬────┬─${fill}─╮
-# │ ↖ │ sh │ ${name} │
-# ╰───┴────┴─${fill}─╯"
-		;;
-	*)
-		RWX_CODE="${RWX_CODE}
-
-# ╭───┬────┬─${fill}─╮
-# │ ↙ │ sh │ ${name} │
-# ╰───┴────┴─${fill}─╯
-
-${text}"
-		;;
-	esac
-}
-
-# ╭──────┬──────╮
-# │ main │ fill │
-# ╰──────┴──────╯
-
-rwx_fill() {
-	local index="${1}"
-	while [ "${index}" -gt 0 ]; do
-		printf "%s" "${2}"
-		index=$((index - 1))
-	done
+	RWX_CODE="${RWX_CODE}\
+#↓ ${name}
+${text}
+"
 }
 
 # ╭──────┬────────╮
@@ -115,16 +93,17 @@ rwx_source() {
 	count=0
 	__rwx_log "" \
 		". ${root}"
-	rwx_ifs_set
-	for module in $(rwx_find_shell "${root}" "${file}"); do
+	local modules="$(rwx_find_shell "${root}" "${file}")"
+	while IFS= read -r module; do
 		count=$((count + 1))
 		__rwx_log "$(printf "%02d" "${count}") ${module%.sh}"
 		# shellcheck disable=SC1090
 		. "${root}/${module}"
 		# cache code
 		rwx_cache "${root}" "${module}"
-	done
-	rwx_ifs_unset
+	done <<EOF
+${modules}
+EOF
 }
 
 # ╭──────┬─────╮
@@ -209,22 +188,22 @@ rwx_parse() {
 	local func="${ws}(${ws})${ws}{.*"
 	local id="[_a-zA-Z][_a-z0-9A-Z]*"
 	local line
-	rwx_ifs_set
 	RWX_CONSTANTS=""
-	for line in $(echo "${RWX_CODE}" |
+	printf "%s\n" "${RWX_CODE}" |
 		grep "${start}${constant}${setting}" |
-		sed "s|${start}\\(${constant}\\)${setting}|\\1|"); do
+		sed "s|${start}\\(${constant}\\)${setting}|\\1|" |
+		while IFS= read -r line; do
 		RWX_CONSTANTS="${RWX_CONSTANTS}${line}
 "
 	done
 	RWX_FUNCTIONS=""
-	for line in $(echo "${RWX_CODE}" |
+	printf "%s\n" "${RWX_CODE}" |
 		grep "${start}${id}${func}" |
-		sed "s|${start}\\(${id}\\)${func}|\\1|"); do
+		sed "s|${start}\\(${id}\\)${func}|\\1|" |
+		while IFS= read -r line; do
 		RWX_FUNCTIONS="${RWX_FUNCTIONS}${line}
 "
 	done
-	rwx_ifs_unset
 }
 
 # ╭──────┬─────╮

sh/self.sh

@@ -1,22 +1,50 @@
+# self module
+
 # meta doc
 rwx_doc() {
 	local name="${1}"
 	[ -n "${name}" ] || return
-	local doc line module
-	rwx_ifs_set
-	for module in $(rwx_find_shell "${RWX_ROOT_SYSTEM}"); do
-		while read -r line; do
+	local constant doc func line module
+	printf "%s\n" "${RWX_CODE}" | while IFS= read -r line; do
 		case "${line}" in
-			"#"*) doc="${doc}${line}" ;;
-			"${name}() {")
+			"#!"*) doc="" ;;
+			"#↓"*)
+				doc=""
+				module="$(echo "${line}" | sed "s|#↓ \\(.*\\)|\\1|")"
+				;;
+			"#"*)
+				[ -n "${doc}" ] && doc="${doc}
+"
+				doc="${doc}${line}"
+				;;
+			*"="*)
+				constant="$(echo "${line}" | sed "s|^\\(.*\\)=.*|\\1|")"
+				if [ "${constant}" = "${name}" ]; then
 					echo "${doc}"
 					return
+				else
+					doc=""
+				fi
+				;;
+			*"("*")"*"{"*)
+				func="$(echo "${line}" | sed "s|^\\(.*\\)() {.*|\\1|")"
+				if [ "${func}" = "${name}" ]; then
+					echo "${doc}"
+					return
+				else
+					doc=""
+				fi
+				;;
+			*)
+				if [ "${module}" = "${name}" ]; then
+					echo "${doc}"
+					return
+				else
+					doc=""
+				fi
 				;;
-			*) doc="" ;;
 		esac
-		done <"${RWX_ROOT_SYSTEM}/${module}"
 	done
-	rwx_ifs_unset
 }
 
 # ╭──────┬───────╮
@@ -127,16 +155,17 @@ export ENV=\"${RWX_MAIN_PATH}\"
 # ╰──────┴────────╯
 
 rwx_self_subset() {
-	local argument path
+	local argument file root
 	for argument in "${@}"; do
-		path="${RWX_ROOT_SYSTEM}/${argument}"
-		if [ -d "${path}" ]; then
+		root="${RWX_ROOT_SYSTEM}/${argument}"
+		file="${argument}.sh"
+		if [ -d "${root}" ]; then
 			local file
-			for file in $(rwx_find_shell "${path}"); do
+			for file in $(rwx_find_shell "${root}"); do
 				echo "${argument}/${file}"
 			done
-		elif [ -f "${path}" ]; then
-			echo "${argument}"
+		elif [ -f "${RWX_ROOT_SYSTEM}/${file}" ]; then
+			echo "${file}"
 		fi
 	done
 }