ngspice/src/frontend/breakp2.c

/**********
Copyright 1990 Regents of the University of California.  All rights reserved.
Author: 1985 Wayne A. Christopher, U. C. Berkeley CAD Group
**********/

/*
 * Code to deal with breakpoints and tracing.
 */

#include "ngspice/ngspice.h"
#include "ngspice/cpdefs.h"
#include "ngspice/ftedefs.h"
#include "ngspice/dvec.h"
#include "ngspice/ftedebug.h"
#include "quote.h"
#include "breakp2.h"


/* global linked list to store .save data and breakpoint data */
struct dbcomm *dbs = NULL;      /* export for iplot */

/* used in breakp.c and breakp2.c */
int debugnumber = 1;

static char *copynode(char* s);


/* Analyse the data given by the .save card or 'save' command.
   Store the data in the global dbs struct.
*/

/* Save a vector. */

void
com_save(wordlist *wl)
{
    settrace(wl, VF_ACCUM, NULL);
}


/* Save a vector with the analysis type given (name). */
void
com_save2(wordlist *wl, char *name)
{
    settrace(wl, VF_ACCUM, name);
}


void
settrace(wordlist *wl, int what, char *name)
{
    struct dbcomm *d, *td;
    char *s;

    while (wl) {
        s = cp_unquote(wl->wl_word);
        d = alloc(struct dbcomm);
        d->db_number = debugnumber++;
        d->db_analysis = name;
        if (eq(s, "all")) {
            switch (what) {
            case VF_PRINT:
                d->db_type = DB_TRACEALL;
                break;
 /*         case VF_PLOT:
                d->db_type = DB_IPLOTALL;
                break; */
            case VF_ACCUM:
                /* d->db_type = DB_SAVEALL; */
                d->db_nodename1 = copy(s);
                d->db_type = DB_SAVE;
                break;
            }
            /* wrd_chtrace(NULL, TRUE, what); */
        } else {
            switch (what) {
            case VF_PRINT:
                d->db_type = DB_TRACENODE;
                break;
/*          case VF_PLOT:
                d->db_type = DB_IPLOT;
                break; */
            case VF_ACCUM:
                d->db_type = DB_SAVE;
                break;
            }
            /* v(2) --> 2, i(vds) --> vds#branch */
            d->db_nodename1 = copynode(s);
            /* wrd_chtrace(s, TRUE, what); */
        }

        tfree(s);              /*DG avoid memoy leak */

        if (dbs) {
            for (td = dbs; td->db_next; td = td->db_next)
                ;
            td->db_next = d;
        } else {
            ft_curckt->ci_dbs = dbs = d;
        }

        wl = wl->wl_next;
    }
}


/* retrieve the save nodes from dbs into an array */
int
ft_getSaves(struct save_info **savesp)
/* global variable: dbs */
{
    struct dbcomm *d;
    int count = 0, i = 0;
    struct save_info *array;

    for (d = dbs; d; d = d->db_next)
        if (d->db_type == DB_SAVE)
            count++;

    if (!count)
        return (0);

    *savesp = array = TMALLOC(struct save_info, count);

    for (d = dbs; d; d = d->db_next)
        if (d->db_type == DB_SAVE) {
            array[i].used = 0;
            if (d->db_analysis)
                array[i].analysis = copy(d->db_analysis);
            else
                array[i].analysis = NULL;
            array[i++].name = copy(d->db_nodename1);
        }

    return (count);
}


/* v(2) --> 2, i(vds) --> vds#branch, 3 --> 3, @mn1[vth0] --> @mn1[vth0]
 *   derived from wordlist *gettoks(char *s)
 */

static char*
copynode(char *s)
{
    char *l, *r;
    char *ret = NULL;

    if (strstr(s, "("))
        s = stripWhiteSpacesInsideParens(s);
    else
        s = copy(s);

    l = strrchr(s, '('/*)*/);
    if (!l)
        return s;

    r = strchr(s, /*(*/')');
    *r = '\0';
    if (*(l - 1) == 'i' || *(l - 1) == 'I') {
        char buf[513];
        sprintf(buf, "%s#branch", l + 1);
        ret = copy(buf);
    } else
        ret = copy(l + 1);

    tfree(s);
    return ret;
}