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merge_low.C

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//   version 1:  September 1999         Steve McMillan

#include "dyn.h"

#ifndef TOOLBOX

void merge_low_level_nodes(dyn * b)     // root node
{
    for_all_daughters(dyn, b, bb)
        if (bb->is_parent()) {
            dyn * od = bb->get_oldest_daughter();
            dyn * yd = od->get_younger_sister();

            // Assume that CM node is consistent, so all we need to
            // do is delete the daughters.

            rmtree(od);
            rmtree(yd);

            bb->set_oldest_daughter(NULL);
        }
}

#else

//-----------------------------------------------------------------------------
//  main  --  driver to use  flatten_node() as a tool.
//-----------------------------------------------------------------------------

main(int argc, char ** argv)
{
    bool  c_flag = FALSE;
    char  *comment;

    check_help();

    extern char *poptarg;
    int c;
    char* param_string = "c:";

    while ((c = pgetopt(argc, argv, param_string)) != -1)
        switch(c) {

            case 'c': c_flag = TRUE;
                      comment = poptarg;
                      break;
            case '?': params_to_usage(cerr, argv[0], param_string);
                      get_help();
                      exit(1);
        }            

    dyn *b;

    while (b = get_dyn(cin)) {

        if (c_flag == TRUE)
            b->log_comment(comment);
        b->log_history(argc, argv);

        merge_low_level_nodes(b);
        put_dyn(cout, *b);      
        delete b;
    }
}

#endif

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