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
|
| /* 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, "? ");
| }
|
|
