initial commit

.config/zsh/lib/pswalk.zsh

@@ -0,0 +1,42 @@
+#!/bin/zsh
+
+typeset -Uga ZSHU_PARENTS_PID
+typeset -ga ZSHU_PARENTS_NAME
+
+function {
+    local i cmd
+
+    i=$$ ; while : ; do
+        i=$(ps -o ppid= -p $i 2>/dev/null || : )
+        i=${i//[^0-9]}
+        [[ "$i" =~ '^[1-9][0-9]*$' ]] || break
+        ZSHU_PARENTS_PID+=( $i )
+    done
+
+    for i ( ${ZSHU_PARENTS_PID} ) ; do
+        cmd=$(ps -o comm= -p $i 2>/dev/null || : )
+        [ -n "${cmd}" ] && ZSHU_PARENTS_NAME+=( "${cmd##*/}" )
+    done
+
+    typeset -r ZSHU_PARENTS_PID
+    typeset -r ZSHU_PARENTS_NAME
+}
+
+typeset -gA ZSHU_RUN
+
+z-run-test() {
+    local key i
+    key=$1 ; shift
+    v=0
+    for i ( ${ZSHU_PARENTS_NAME} ) ; do
+        if (( ${+argv[(r)$i]} )) ; then
+            ZSHU_RUN[${key}]=1
+            return
+        fi
+    done
+    ZSHU_RUN[${key}]=0
+}
+
+z-run-test gui       konsole xterm x-terminal-emulator
+z-run-test nested    screen tmux
+z-run-test elevated  sudo su