com_cdump.c

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#include <stdio.h>

#include <wordlist.h>

#include "control.h"
#include "streams.h"

#include "com_cdump.h"

static int indent;


static void
tab(int num)
{
    int i;

    for (i = 0; i < num; i++)
	putc(' ', cp_out);
}


static void
dodump(struct control *cc)
{
    struct control *tc;

    switch (cc->co_type) {
    case CO_UNFILLED:
	tab(indent);
	fprintf(cp_out, "(unfilled)\n");
	break;
    case CO_STATEMENT:
	tab(indent);
	wl_print(cc->co_text, cp_out);
	putc('\n', cp_out);
	break;
    case CO_WHILE:
	tab(indent);
	fprintf(cp_out, "while ");
	wl_print(cc->co_cond, cp_out);
	putc('\n', cp_out);
	indent += TABINDENT;
	for (tc = cc->co_children; tc; tc = tc->co_next)
	    dodump(tc);
	indent -= TABINDENT;
	tab(indent);
	fprintf(cp_out, "end\n");
	break;
    case CO_REPEAT:
	tab(indent);
	fprintf(cp_out, "repeat ");
	if (cc->co_numtimes != -1)
	    fprintf(cp_out, "%d (%d left to do)\n", cc->co_numtimes, cc->co_timestodo); /* CDHW */
	else
	    putc('\n', cp_out);
	indent += TABINDENT;
	for (tc = cc->co_children; tc; tc = tc->co_next)
	    dodump(tc);
	indent -= TABINDENT;
	tab(indent);
	fprintf(cp_out, "end\n");
	break;
    case CO_DOWHILE:
	tab(indent);
	fprintf(cp_out, "dowhile ");
	wl_print(cc->co_cond, cp_out);
	putc('\n', cp_out);
	indent += TABINDENT;
	for (tc = cc->co_children; tc; tc = tc->co_next)
	    dodump(tc);
	indent -= TABINDENT;
	tab(indent);
	fprintf(cp_out, "end\n");
	break;
    case CO_IF:
	tab(indent);
	fprintf(cp_out, "if ");
	wl_print(cc->co_cond, cp_out);
	putc('\n', cp_out);
	indent += TABINDENT;
	for (tc = cc->co_children; tc; tc = tc->co_next)
	    dodump(tc);
	indent -= TABINDENT;
	tab(indent);
	fprintf(cp_out, "end\n");
	break;
    case CO_FOREACH:
	tab(indent);
	fprintf(cp_out, "foreach %s ", cc->co_foreachvar);
	wl_print(cc->co_text, cp_out);
	putc('\n', cp_out);
	indent += TABINDENT;
	for (tc = cc->co_children; tc; tc = tc->co_next)
	    dodump(tc);
	indent -= TABINDENT;
	tab(indent);
	fprintf(cp_out, "end\n");
	break;
    case CO_BREAK:
	tab(indent);
	if (cc->co_numtimes != 1)
	    fprintf(cp_out, "break %d\n", cc->co_numtimes);
	else
	    fprintf(cp_out, "break\n");
	break;
    case CO_CONTINUE:
	tab(indent);
	if (cc->co_numtimes != 1)
	    fprintf(cp_out, "continue %d\n",
		    cc->co_numtimes);
	else
	    fprintf(cp_out, "continue\n");
	break;
    case CO_LABEL:
	tab(indent);
	fprintf(cp_out, "label %s\n", cc->co_text->wl_word);
	break;
    case CO_GOTO:
	tab(indent);
	fprintf(cp_out, "goto %s\n", cc->co_text->wl_word);
	break;
    default:
	tab(indent);
	fprintf(cp_out, "bad type %d\n", cc->co_type);
	break;
    }
    return;
}


void
com_cdump(wordlist *wl)
{
    struct control *c;

    indent = 0;
    for (c = control[stackp]; c; c = c->co_next)
        dodump(c);
    return;
}