refactor(lua2dox_filter): format

scripts/lua2dox_filter

@@ -22,20 +22,19 @@
 LANG=""
 
 ##! \brief test executable to see if it exists
-test_executable(){
+test_executable() {
   P_EXE="$1"
   #########
-	WHICH=`which ${P_EXE}`
+  WHICH=$(which "$P_EXE")
-	if test -z "${WHICH}"
+  if test -z "${WHICH}"; then
-	then
     echo "not found \"${P_EXE}\""
   else
     EXE="${P_EXE}"
   fi
-	}
+}
 
 ##! \brief sets the lua interpreter
-set_lua(){
+set_lua() {
   if test -z "${EXE}"; then
     test_executable '.deps/usr/bin/luajit'
   fi
@@ -53,34 +52,32 @@ set_lua(){
 ##!
 ##! Note that "readlink -f" doesn't work in MacOSX
 ##!
-do_readlink(){
+do_readlink() {
   pushd . > /dev/null
   TARGET_FILE=$1
 
-	cd `dirname $TARGET_FILE`
+  cd "$(dirname $TARGET_FILE)"
-	TARGET_FILE=`basename $TARGET_FILE`
+  TARGET_FILE=$(basename "$TARGET_FILE")
 
   # Iterate down a (possible) chain of symlinks
-	while [ -L "$TARGET_FILE" ]
+  while [ -L "$TARGET_FILE" ]; do
-	do
+    TARGET_FILE=$(readlink "$TARGET_FILE")
-		TARGET_FILE=`readlink $TARGET_FILE`
+    cd $(dirname "$TARGET_FILE")
-		cd `dirname $TARGET_FILE`
+    TARGET_FILE=$(basename "$TARGET_FILE")
-		TARGET_FILE=`basename $TARGET_FILE`
   done
 
-	PHYS_DIR=`pwd -P`
+  PHYS_DIR=$(pwd -P)
   RESULT=$PHYS_DIR
   popd > /dev/null
-	}
+}
 
 ##main
 set_lua
-if test -z "${EXE}"
+if test -z "${EXE}"; then
-then
   echo "no lua interpreter found"
   exit 1
 else
-	BASENAME=`basename "$0"`
+  BASENAME=$(basename "$0")
   do_readlink "$0"
   DIRNAME="${RESULT}"
 
@@ -89,5 +86,5 @@ else
 
   ${EXE} ${LUASCRIPT} $@
 fi
-# 
+
 ##eof