vastly improved awk based code generator

now handles recursive function definitions, unions etc
it is sufficient for some basic types like UNISTR2 and BUFFER5
to be defined in the *.struct file and used successfully

this generator uses templates (in *.tpl files) for all code
generation, allowing easy replacement of the backend functions
(This used to be commit 14ded82dc92ae6eff7639351f391a33b9cc31c0d)

1 files changed, 55 insertions, 0 deletions

diff --git a/source3/aparser/dump.awk b/source3/aparser/dump.awk
new file mode 100644
index 0000000000..0a72bb8414
--- /dev/null
+++ b/source3/aparser/dump.awk
@@ -0,0 +1,55 @@
+# dump the current parse tree
+
+function dump_union(f, struct_num, union,
+		    LOCAL, i) 
+{
+	xprintf(f,"\tunion %s %s {\n", 
+	       structs[struct_num, "unions", union, "switch"],
+	       union);
+	for (i=0;i<structs[struct_num, "unions", union, "num_elems"];i++) {
+		xprintf(f,"\t\tcase %d %s %s;\n", 
+		       structs[struct_num, "unions", union, i, "value"],
+		       structs[struct_num, "unions", union, i, "type"],
+		       structs[struct_num, "unions", union, i, "elem"]);
+	}
+	xprintf(f,"\t}\n");
+}
+
+function dump_array(f, struct_num, elem_num,
+		    LOCAL, i) 
+{
+	xprintf(f,"\t{%s} %s %s;\n", 
+	       structs[struct_num, elem_num, "array_len"],
+	       structs[struct_num, elem_num, "type"],
+	       structs[struct_num, elem_num, "elem"]);
+}
+
+function dump_elem(f, struct_num, elem_num) 
+{
+	if (structs[struct_num, elem_num, "type"] == "union") {
+		dump_union(f, struct_num, structs[struct_num, elem_num, "elem"]);
+	} else if (structs[struct_num, elem_num, "array_len"]) {
+		dump_array(f, struct_num, elem_num);
+	} else {
+		xprintf(f,"\t%s %s;\n", 
+		       structs[struct_num, elem_num, "type"],
+		       structs[struct_num, elem_num, "elem"]);
+	}
+}
+
+function dump_structs(f, NIL,
+		      LOCAL, i, j) 
+{
+	xprintf(f,"/* dump of parsed structures */\n\n\n");
+	for (i=0;i < num_structs;i++) {
+		xprintf(f,"/* structure %d */\n", i);
+		xprintf(f,"struct %s {\n", structs[i, "name"]);
+		for (j=0;j<structs[i, "num_elems"];j++) {
+			dump_elem(f, i, j);
+		}
+		xprintf(f,"};\n\n");
+	}
+	xprintf(f,"/* end dump */\n\n");
+}
+
+