AppPkg/Applications/Python/Python-2.7.10/Parser/listnode.c

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