source/aparser/dump.awk

   1 # dump the current parse tree
   2
   3
   4 function element_string(elnum,
   5                         LOCAL, elem)
   6 {
   7         elem = elements[elnum, "elem"];
   8         if (elements[elnum, "ptr"]=="1") elem="*"elem;
   9         if (elements[elnum, "array_len"]!="")
  10                 elem=elem"["elements[elnum, "array_len"]"]";
  11         if (elements[elnum, "switch"]!="")
  12                 elem=elem"["elements[elnum, "switch"]"]";
  13         return elem;
  14 }
  15
  16 function dump_element(f, elnum,
  17                       LOCAL, elem, type)
  18 {
  19         type = elements[elnum, "type"];
  20         case = elements[elnum, "case"];
  21         elem = element_string(elnum);
  22         if (case != "") {
  23                 xprintf(f,"\t\tcase %d %s %s;\n", case, type, elem);
  24         } else {
  25                 xprintf(f,"\t%s %s;\n", type, elem);
  26         }
  27 }
  28
  29 function dump_union(f, elnum,
  30                     LOCAL, i)
  31 {
  32         xprintf(f,"\tunion %s {\n", element_string(elnum));
  33         for (i=0;i<unions[elnum, "num_elems"];i++) {
  34                 dump_element(f, unions[elnum, i]);
  35         }
  36         xprintf(f,"\t}\n");
  37 }
  38
  39 function dump_elem(f, struct_num, elem_num,
  40                    LOCAL, enum)
  41 {
  42         elnum = structs[struct_num, elem_num];
  43
  44         if (elements[elnum, "type"] == "union") {
  45                 dump_union(f, elnum);
  46         } else {
  47                 dump_element(f, elnum);
  48         }
  49 }
  50
  51 function dump_structs(f, NIL,
  52                       LOCAL, i, j)
  53 {
  54         xprintf(f,"/* dump of parsed structures */\n\n\n");
  55
  56         for (i=0;i < num_options;i++) {
  57                 xprintf(f,"option %s %s\n", options[i, "name"], options[i, "value"]);
  58         }
  59         xprintf(f,"\n\n");
  60
  61         for (i=0;i < num_structs;i++) {
  62                 xprintf(f,"/* structure %d */\n", i);
  63                 xprintf(f,"struct %s {\n", structs[i, "name"]);
  64                 for (j=0;j<structs[i, "num_elems"];j++) {
  65                         dump_elem(f, i, j);
  66                 }
  67                 xprintf(f,"};\n\n");
  68         }
  69         xprintf(f,"/* end dump */\n\n");
  70 }