inital commit

bin/bd

@@ -0,0 +1,65 @@
+#autoload
+
+bd () {
+  (($#<1)) && {
+    print -- "usage: $0 <name-of-any-parent-directory>"
+    print -- "       $0 <number-of-folders>"
+    return 1
+  } >&2
+  # example:
+  #   $PWD == /home/arash/abc ==> $num_folders_we_are_in == 3
+  local num_folders_we_are_in=${#${(ps:/:)${PWD}}}
+  local dest="./"
+
+  # First try to find a folder with matching name (could potentially be a number)
+  # Get parents (in reverse order)
+  local parents
+  local i
+  for i in {$num_folders_we_are_in..2}
+  do
+    parents=($parents "$(echo $PWD | cut -d'/' -f$i)")
+  done
+  parents=($parents "/")
+  # Build dest and 'cd' to it
+  local parent
+  foreach parent (${parents})
+  do
+    dest+="../"
+    if [[ $1 == $parent ]]
+    then
+      cd $dest
+      return 0
+    fi
+  done
+
+  # If the user provided an integer, go up as many times as asked
+  dest="./"
+  if [[ "$1" = <-> ]]
+  then
+    if [[ $1 -gt $num_folders_we_are_in ]]
+    then
+      print -- "bd: Error: Can not go up $1 times (not enough parent directories)"
+      return 1
+    fi
+    for i in {1..$1}
+    do
+      dest+="../"
+    done
+    cd $dest
+    return 0
+  fi
+
+  # If the above methods fail
+  print -- "bd: Error: No parent directory named '$1'"
+  return 1
+}
+_bd () {
+  # Get parents (in reverse order)
+  local num_folders_we_are_in=${#${(ps:/:)${PWD}}}
+  local i
+  for i in {$num_folders_we_are_in..2}
+  do
+    reply=($reply "`echo $PWD | cut -d'/' -f$i`")
+  done
+  reply=($reply "/")
+}