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zsh/.oh-my-zsh/plugins/emacs/emacs.plugin.zsh

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+# Emacs 23 daemon capability is a killing feature.
+# One emacs process handles all your frames whether
+# you use a frame opened in a terminal via a ssh connection or X frames
+# opened on the same host.
+
+# Benefits are multiple
+# - You don't have the cost of starting Emacs all the time anymore
+# - Opening a file is as fast as Emacs does not have anything else to do.
+# - You can share opened buffered across opened frames.
+# - Configuration changes made at runtime are applied to all frames.
+
+# Require emacs version to be minimum 24
+autoload -Uz is-at-least
+is-at-least 24 "${${(Az)"$(emacsclient --version 2>/dev/null)"}[2]}" || return 0
+
+# Path to custom emacsclient launcher
+export EMACS_PLUGIN_LAUNCHER="${0:A:h}/emacsclient.sh"
+
+# set EDITOR if not already defined.
+export EDITOR="${EDITOR:-${EMACS_PLUGIN_LAUNCHER}}"
+
+alias emacs="$EMACS_PLUGIN_LAUNCHER --no-wait"
+alias e=emacs
+# open terminal emacsclient
+alias te="$EMACS_PLUGIN_LAUNCHER -nw"
+
+# same than M-x eval but from outside Emacs.
+alias eeval="$EMACS_PLUGIN_LAUNCHER --eval"
+# create a new X frame
+alias eframe='emacsclient --alternate-editor "" --create-frame'
+
+# Emacs ANSI Term tracking
+if [[ -n "$INSIDE_EMACS" ]]; then
+  chpwd_emacs() { print -P "\033AnSiTc %d"; }
+  print -P "\033AnSiTc %d"    # Track current working directory
+  print -P "\033AnSiTu %n"    # Track username
+
+  # add chpwd hook
+  autoload -Uz add-zsh-hook
+  add-zsh-hook chpwd chpwd_emacs
+fi
+
+# Write to standard output the path to the file
+# opened in the current buffer.
+function efile {
+  local cmd="(buffer-file-name (window-buffer))"
+  local file="$("$EMACS_PLUGIN_LAUNCHER" --eval "$cmd" | tr -d \")"
+
+  if [[ -z "$file" ]]; then
+    echo "Can't deduce current buffer filename." >&2
+    return 1
+  fi
+
+  echo "$file"
+}
+
+# Write to standard output the directory of the file
+# opened in the the current buffer
+function ecd {
+  local file
+  file="$(efile)" || return $?
+  echo "${file:h}"
+}