mirror of
https://github.com/python/cpython.git
synced 2024-11-25 10:54:51 +08:00
67 lines
983 B
C
67 lines
983 B
C
|
|
/* 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, "? ");
|
|
}
|