Add skeleton zsh sematntic prompt code

.config/zsh/functions/semantic-prompt.zsh

@@ -0,0 +1,25 @@
+_prompt_executing=""
+function __prompt_precmd() {
+    local ret="$?"
+    if test "$_prompt_executing" != "0"
+    then
+      _PROMPT_SAVE_PS1="$PS1"
+      _PROMPT_SAVE_PS2="$PS2"
+      PS1=$'%{\e]133;P;k=i\a%}'$PS1$'%{\e]133;B\a\e]122;> \a%}'
+      PS2=$'%{\e]133;P;k=s\a%}'$PS2$'%{\e]133;B\a%}'
+    fi
+    if test "$_prompt_executing" != ""
+    then
+       printf "\033]133;D;%s;aid=%s\007" "$ret" "$$"
+    fi
+    printf "\033]133;A;cl=m;aid=%s\007" "$$"
+    _prompt_executing=0
+}
+function __prompt_preexec() {
+    PS1="$_PROMPT_SAVE_PS1"
+    PS2="$_PROMPT_SAVE_PS2"
+    printf "\033]133;C;\007"
+    _prompt_executing=1
+}
+preexec_functions+=(__prompt_preexec)
+precmd_functions+=(__prompt_precmd)

.zshrc

@@ -53,6 +53,10 @@ zstyle ':prompt:grml:right:setup' use-rprompt false
 # https://unix.stackexchange.com/a/302710
 #set +o prompt_cr +o prompt_sp
 
+# enable OSC 133 shell prompt start/end reporting
+# so that the terminal can scroll jump between prompts
+#xsource ~/.config/zsh/functions/semantic-prompt.zsh
+
 # Git based dotfiles setup start
 function _config_activate {
     export GIT_DIR=$HOME/.cfg/