Some error checking and an xml dump routine contributed by Norman Vine.

diff --git a/src/Network/props.cxx b/src/Network/props.cxx
index 77fac588bb47c9f190302b4b89a8cbce70523534..f249f23b8524a8e49e81c91ef08b8a34fcdeba59 100644 (file)
--- a/src/Network/props.cxx
+++ b/src/Network/props.cxx
@@ -63,6 +63,7 @@ bool FGProps::open() {
     }
 
     set_enabled( true );
+    FG_LOG( FG_IO, FG_INFO, "Opening properties channel communication layer." );
 
     return true;
 }
@@ -129,6 +130,22 @@ bool FGProps::process_command( const char *cmd ) {
            }
            io->writestring( line.c_str() );
        }
+    } else if ( command == "dump" ) {
+       strstream buf;
+       if ( tokens.size() <= 1 ) {
+           writeProperties ( buf, node);
+           io->writestring( buf.str() );
+       }
+       else {
+           SGPropertyNode *child = node->getNode(tokens[1]);
+           if ( child ) {
+               writeProperties ( buf, child );
+               io->writestring( buf.str() );
+           } else {
+               tokens[1] += " Not Found\n";
+               io->writestring( tokens[1].c_str() );
+           }
+       }
     } else if ( command == "cd" ) {
        // string tmp = "current path = " + node.getPath() + "\n";
        // io->writestring( tmp.c_str() );
@@ -136,8 +153,13 @@ bool FGProps::process_command( const char *cmd ) {
         if ( tokens.size() <= 1 ) {
            // do nothing
        } else {
-           node = node->getNode(tokens[1]);
-           path = node->getPath();
+           SGPropertyNode *child = node->getNode(tokens[1]);
+           if ( child ) {
+               path = child->getPath();
+           } else {
+               tokens[1] += " Not Found\n";
+               io->writestring( tokens[1].c_str() );
+           }
        }
     } else if ( command == "pwd" ) {
        string ttt = node->getPath();
@@ -146,7 +168,7 @@ bool FGProps::process_command( const char *cmd ) {
        }
        ttt += "\n";
        io->writestring( ttt.c_str() );
-    } else if ( command == "show" ) {
+    } else if ( command == "get" || command == "show" ) {
        if ( tokens.size() <= 1 ) {
            // do nothing
        } else {
@@ -183,9 +205,11 @@ bool FGProps::process_command( const char *cmd ) {
        io->writestring( "\n" );
        io->writestring( "help             show help message\n" );
        io->writestring( "ls               list current directory\n" );
+       io->writestring( "dump             dump current state (in xml)\n" );
        io->writestring( "cd <dir>         cd to a directory, '..' to move back\n" );
        io->writestring( "pwd              display your current path\n" );
-       io->writestring( "show <var>       show the value of a parameter\n" );
+       io->writestring( "get <var>        show the value of a parameter\n" );
+       io->writestring( "show <var>       synonym for get\n" );
        io->writestring( "set <var> <val>  set <var> to a new <val>\n" );
        io->writestring( "quit             terminate connection\n" );
        io->writestring( "\n" );