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
72
|
# produce a header file for a parsed struct file
function header_elstring(elnum,
LOCAL, elem)
{
array_len = elements[elnum, "array_len"];
elem=elements[elnum, "elem"];
if (elements[elnum, "ptr"]=="1") elem="*"elem;
if (array_len!="") {
if (match(array_len,"[0-9]") == 1) {
elem=elem"["array_len"]";
} else {
elem="*"elem;
}
}
return elem;
}
function header_element(f, elnum,
LOCAL, type)
{
type=elements[elnum, "type"];
if (substr(type,1,1) == ".") return;
xprintf(f,"\t%s %s;\n", type, header_elstring(elnum));
}
function header_union(f, elnum,
LOCAL, i)
{
xprintf(f,"\tunion {\n");
for (i=0;i<unions[elnum, "num_elems"];i++) {
header_element(f, unions[elnum, i]);
}
xprintf(f,"\t} %s;\n", header_elstring(elnum));
}
function header_elem(f, elnum)
{
if (elements[elnum, "type"] == "union") {
header_union(f, elnum);
} else {
header_element(f, elnum);
}
}
function header_struct(f, struct_num,
LOCAL, i)
{
xprintf(f,"/* structure %s */\n",
structs[struct_num, "name"]);
xprintf(f,"typedef struct {\n");
for (i=0;i < structs[struct_num, "num_elems"];i++) {
header_elem(f, structs[struct_num, i]);
}
xprintf(f,"} %s;\n\n\n", structs[struct_num, "name"]);
}
function produce_headers(f, NIL,
LOCAL, i)
{
xprintf(f,"/* auto-generated headers for %s */\n\n\n", module);
xprintf(f,"#ifndef _%s_\n", module);
xprintf(f,"#define _%s_\n", module);
for (i=0;i < num_structs;i++) {
header_struct(f, i);
}
xprintf(f,"/* end auto-generated headers */\n\n");
xprintf(f,"#endif /* _%s_ */\n", module);
}
|
