update prezto

.zprezto/modules/prompt/external/powerlevel9k/shunit2/lib/shlib

@@ -0,0 +1,39 @@
+# vim:et:ft=sh:sts=2:sw=2
+#
+# Copyright 2008 Kate Ward. All Rights Reserved.
+# Released under the LGPL (GNU Lesser General Public License).
+#
+# Author: kate.ward@forestent.com (Kate Ward)
+#
+# Library of shell functions.
+
+# Convert a relative path into it's absolute equivalent.
+#
+# This function will automatically prepend the current working directory if the
+# path is not already absolute. It then removes all parent references (../) to
+# reconstruct the proper absolute path.
+#
+# Args:
+#   shlib_path_: string: relative path
+# Outputs:
+#   string: absolute path
+shlib_relToAbsPath()
+{
+  shlib_path_=$1
+
+  # prepend current directory to relative paths
+  echo "${shlib_path_}" |grep '^/' >/dev/null 2>&1 \
+      || shlib_path_="${PWD}/${shlib_path_}"
+
+  # clean up the path. if all seds supported true regular expressions, then
+  # this is what it would be:
+  shlib_old_=${shlib_path_}
+  while true; do
+    shlib_new_=`echo "${shlib_old_}" |sed 's/[^/]*\/\.\.\/*//;s/\/\.\//\//'`
+    [ "${shlib_old_}" = "${shlib_new_}" ] && break
+    shlib_old_=${shlib_new_}
+  done
+  echo "${shlib_new_}"
+
+  unset shlib_path_ shlib_old_ shlib_new_
+}