feat(emacs): improve vterm helpers for use within Emacs

zsh/emacs.zsh

@@ -23,3 +23,20 @@ fi
 
 # add doom-emacs' bin directory to path if it exists
 path_prepend "$HOME/.config/doom-emacs/bin"
+
+# Setup vterm if shell is within vterm inside Emacs.
+if [[ "$INSIDE_EMACS" = 'vterm' ]]; then
+  if [[ -n "${EMACS_VTERM_PATH}" ]] &&
+    [[ -f "${EMACS_VTERM_PATH}/etc/emacs-vterm-zsh.sh" ]]; then
+    source "${EMACS_VTERM_PATH}/etc/emacs-vterm-zsh.sh"
+  fi
+
+  # Some commands to invoke emacs functions
+  find-file() {
+    vterm_cmd find-file "$(realpath "${@:-.}")"
+  }
+
+  say() {
+    vterm_cmd message "%s" "$*"
+  }
+fi

zsh/vterm.zsh

@@ -1,17 +0,0 @@
-#
-# vterm Integration
-# https://github.com/akermu/emacs-libvterm#shell-side-configuration
-#
-
-vterm_printf(){
-  if [ -n "$TMUX" ]; then
-    # Tell tmux to pass the escape sequences through
-    # (Source: http://permalink.gmane.org/gmane.comp.terminal-emulators.tmux.user/1324)
-    printf "\ePtmux;\e\e]%s\007\e\\" "$1"
-  elif [ "${TERM%%-*}" = "screen" ]; then
-    # GNU screen (screen, screen-256color, screen-256color-bce)
-    printf "\eP\e]%s\007\e\\" "$1"
-  else
-    printf "\e]%s\e\\" "$1"
-  fi
-}