1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/* List a node on a file */
#include "Python.h"
#include "pycore_interp.h" // PyInterpreterState.parser
#include "pycore_pystate.h" // _PyInterpreterState_GET()
#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 void
listnode(FILE *fp, node *n)
{
PyInterpreterState *interp = _PyInterpreterState_GET();
interp->parser.listnode.level = 0;
interp->parser.listnode.atbol = 1;
list1node(fp, n);
}
static void
list1node(FILE *fp, node *n)
{
if (n == NULL)
return;
if (ISNONTERMINAL(TYPE(n))) {
int i;
for (i = 0; i < NCH(n); i++)
list1node(fp, CHILD(n, i));
}
else if (ISTERMINAL(TYPE(n))) {
PyInterpreterState *interp = _PyInterpreterState_GET();
struct _Py_parser_state *parser = &interp->parser;
switch (TYPE(n)) {
case INDENT:
parser->listnode.level++;
break;
case DEDENT:
parser->listnode.level--;
break;
default:
if (parser->listnode.atbol) {
int i;
for (i = 0; i < parser->listnode.level; ++i) {
fprintf(fp, "\t");
}
parser->listnode.atbol = 0;
}
if (TYPE(n) == NEWLINE) {
if (STR(n) != NULL)
fprintf(fp, "%s", STR(n));
fprintf(fp, "\n");
parser->listnode.atbol = 1;
}
else
fprintf(fp, "%s ", STR(n));
break;
}
}
else
fprintf(fp, "? ");
}
|
