Modify graphs in the editor

A script is executed from the command line in Ge by setting a '@' before the filename, for
example

ge> @my_script

The command line is opened from Functions/Command (Ctrl+B).

Example
This example shows how to change a subgraph in several graphs. A subgraph is normally intern,
and a modification does not take effect until you have performed the procedure to

- set the subgraph extern
- save the graph
- read the graph, now with the modified subgraph
- set the subgraph intern again
- save the graph

If you often modify you subgraphs you can with advantage write a script that replaces a subgraph
in all graphs of the project.

! Replace a subgraph

function int process(string graph)

    int sts;

    printf( "Processing graph %s\n", graph);

    open 'graph'

    sts = SetExtern("my_subgraph");

    if ( sts)

        printf( "Changing my_subgraph\n");

        save

        open 'graph'

        SetIntern( "my_subgraph");

        save

    endif

endfunction

main()

    process( "nu4_alla_platar");

    process( "nu4_status_trp");

    process( "nu4_trp_hy1");

    process( "nu4_trp_rb_ut");

    process( "nu4_buffhog");

    process( "nu4_status_ugn");

    process( "nu4_trp_lu1");

    process( "nu4_trp_start");

    process( "nu4_inlagg");

    process( "nu4_trend");

    process( "nu4_trp_rb1");

    process( "nu4_ugn_start");

endmain