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listnode.c

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/* List a node on a file */

#include "pgenheaders.h"

#include "token.h"

#include "node.h"

/* Forward */

static void list1node(FILE *, node *);

static void listnode(FILE *, node *);

void

PyNode_ListTree(node *n)

{

listnode(stdout, n);

}

static int level, atbol;

static void

listnode(FILE *fp, node *n)

{

level = 0;

atbol = 1;

list1node(fp, n);

}

static void

list1node(FILE *fp, node *n)

{

if (n == 0)

return;

if (ISNONTERMINAL(TYPE(n))) {

int i;

for (i = 0; i < NCH(n); i++)

list1node(fp, CHILD(n, i));

}

else if (ISTERMINAL(TYPE(n))) {

switch (TYPE(n)) {

case INDENT:

++level;

break;

case DEDENT:

--level;

break;

default:

if (atbol) {

int i;

for (i = 0; i < level; ++i)

fprintf(fp, "\t");

atbol = 0;

}

if (TYPE(n) == NEWLINE) {

if (STR(n) != NULL)

fprintf(fp, "%s", STR(n));

fprintf(fp, "\n");

atbol = 1;

}

else

fprintf(fp, "%s ", STR(n));

break;

}

}

else

fprintf(fp, "? ");

}