revert yang2cli sub code, use existing yang2cli solution

test/test_cli_auto_sub.sh

@@ -0,0 +1,126 @@
+#!/usr/bin/env bash
+# Tests for generating clispec from a yang subtree 
+
+# Magic line must be first in script (see README.md)
+s="$_" ; . ./lib.sh || if [ "$s" = $0 ]; then exit 0; else return 0; fi
+
+APPNAME=example
+
+# include err() and new() functions and creates $dir
+
+# Must be defined by a call: yang2cli_sub(h, ..., "datamodelexample", ...)
+fin=$dir/in
+cfg=$dir/conf_yang.xml
+fyang=$dir/$APPNAME.yang
+clidir=$dir/cli
+if [ -d $clidir ]; then
+    rm -rf $clidir/*
+else
+    mkdir $clidir
+fi
+
+# Use yang in example
+
+cat <<EOF > $cfg
+<clixon-config xmlns="http://clicon.org/config">
+  <CLICON_CONFIGFILE>$cfg</CLICON_CONFIGFILE>
+  <CLICON_YANG_DIR>/usr/local/share/clixon</CLICON_YANG_DIR>
+  <CLICON_YANG_DIR>$dir</CLICON_YANG_DIR>
+  <CLICON_YANG_MAIN_FILE>$fyang</CLICON_YANG_MAIN_FILE>
+  <CLICON_BACKEND_DIR>/usr/local/lib/$APPNAME/backend</CLICON_BACKEND_DIR>
+  <CLICON_CLISPEC_DIR>$clidir</CLICON_CLISPEC_DIR>
+  <CLICON_CLI_DIR>/usr/local/lib/$APPNAME/cli</CLICON_CLI_DIR>
+  <CLICON_CLI_MODE>$APPNAME</CLICON_CLI_MODE>
+  <CLICON_CLI_GENMODEL>2</CLICON_CLI_GENMODEL>
+  <CLICON_CLI_GENMODEL_TYPE>VARS</CLICON_CLI_GENMODEL_TYPE>
+  <CLICON_SOCK>/usr/local/var/$APPNAME/$APPNAME.sock</CLICON_SOCK>
+  <CLICON_BACKEND_PIDFILE>/usr/local/var/$APPNAME/$APPNAME.pidfile</CLICON_BACKEND_PIDFILE>
+  <CLICON_XMLDB_DIR>/usr/local/var/$APPNAME</CLICON_XMLDB_DIR>
+  <CLICON_MODULE_LIBRARY_RFC7895>false</CLICON_MODULE_LIBRARY_RFC7895>
+</clixon-config>
+EOF
+
+cat <<EOF > $fyang
+module $APPNAME {
+  namespace "urn:example:clixon";
+  prefix ex;
+  container table{
+    list parameter{
+      key name;
+      leaf name{
+        type string;
+      }
+      leaf value{
+        type string;
+      }
+      list index{
+        key i;
+	leaf i{
+	  type string;
+	}
+      }
+    }
+  }
+}
+EOF
+
+cat <<EOF > $clidir/ex.cli
+CLICON_MODE="example";
+CLICON_PROMPT="%U@%H> ";
+
+# Manual command form where a sub-mode is created from @datamodel
+# It gives: cvv eg:
+# 0 : cmd = parameter 123
+# 1 : string = "123"
+enter <string>, cli_auto_sub_enter("datamodel", "/example:table/parameter=%s/index=%s/", "x");
+leave, cli_auto_top("datamodel", "candidate");
+
+# Autocli syntax tree operations
+edit @datamodel, cli_auto_edit("interface");
+up, cli_auto_up("datamodel");
+top, cli_auto_top("datamodel");
+set @datamodel, cli_auto_set();
+merge @datamodel, cli_auto_merge();
+create @datamodel, cli_auto_create();
+delete("Delete a configuration item") {
+      @datamodel, cli_auto_del(); 
+      all("Delete whole candidate configuration"), delete_all("candidate");
+}
+show("Show a particular state of the system"){
+    configuration("Show configuration"), cli_auto_show("datamodel", "candidate", "text", true, false);
+}
+EOF
+
+new "test params: -f $cfg"
+if [ $BE -ne 0 ]; then
+    new "kill old backend"
+    sudo clixon_backend -z -f $cfg
+    if [ $? -ne 0 ]; then
+	err
+    fi
+    new "start backend -s init -f $cfg"
+    start_backend -s init -f $cfg
+
+    new "waiting"
+    wait_backend
+fi
+
+cat <<EOF > $fin
+enter a
+leave
+EOF
+new "enter leave"
+expectpart "$(cat $fin | $clixon_cli -f $cfg 2>&1)" 0 'enter a' 'leave' 
+
+# XXX much more
+
+new "Kill backend"
+# Check if premature kill
+pid=$(pgrep -u root -f clixon_backend)
+if [ -z "$pid" ]; then
+    err "backend already dead"
+fi
+# kill backend
+stop_backend -f $cfg
+
+rm -rf $dir