From ea37c09399e8699df86102aeb8cbcba3ad5efe2f Mon Sep 17 00:00:00 2001
From: Wei Dai <x@wei23.net>
Date: Thu, 12 Jul 2012 22:36:15 -0700
Subject: [PATCH] Pass `rmdir' options to `mkdir'. Improve `quote'. [gh-1]

---
 test |  7 ++++---
 undo | 13 +++++++++----
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/test b/test
index 68b1f5f..86a87ee 100755
--- a/test
+++ b/test
@@ -59,9 +59,10 @@ EOS
 test_rmdir() {
   cd "$SHUNIT_TMPDIR"
   assertIsReverse <<EOS
-    rmdir dir     -> mkdir dir
-    rmdir "d i r" -> mkdir d\\ i\\ r
-    rmdir a b c   -> mkdir a b c
+    rmdir dir        -> mkdir dir
+    rmdir "d i r"    -> mkdir d\\ i\\ r
+    rmdir a b c      -> mkdir a b c
+    rmdir -p dir/a/b -> mkdir -p dir/a/b
 EOS
 }
 
diff --git a/undo b/undo
index e9141ee..e4da181 100755
--- a/undo
+++ b/undo
@@ -53,10 +53,15 @@ command="$1" && shift
 # Helpers
 # =======
 
-# Shell quote an argument.
-# Synopsis: quote argument
+# Shell quote arguments.
+# Synopsis: quote argument...
 quote() {
-  printf '%s\n' "$1" | sed 's/\([|&;<>()$`\\"'"'"' 	*?#~=%\[]\)/\\\1/g'
+  while [ "$1" ]; do
+    printf %s "$1" | sed 's/\([|&;<>()$`\\"'"'"' 	*?#~=%\[]\)/\\\1/g'
+    [ "$2" ] && printf ' '
+    shift
+  done
+  printf '\n'
 }
 
 # Print messages to STDERR and exit with given exit code.
@@ -165,7 +170,7 @@ cmd mkdir && \
 
 cmd rmdir && \
   reverse_cmd() {
-    format_args 'mkdir %s' -- "$@"
+    printf %s "mkdir $(quote "$@")"
   }
 
 cmd tar && \