path: root/main.py

#!/usr/bin/python3
# _*_ coding=utf-8 _*_

import argparse
import code
import fileinput
import json
import readline
from shutil import copy
import signal
import sys
import os
from text import text
import datetime
import xml.etree.ElementTree
from misc import *
import datetime

# TODO-doesnt support non-byte-sized reads
# TODO-doesnt support big-endian normal reads
def type_resolver(elem, elem_list):
    type_str = elem.attrib["type"]
    type_name = elem.attrib["name"]
    if type_str == "int8":
        return "int8_t"
    elif type_str == "uint8":
        return "uint8_t"
    elif type_str == "int16":
        return "int16_t"
    elif type_str == "uint16":
        return "uint16_t"
    elif type_str == "int32":
        return "int32_t"
    elif type_str == "uint32":
        return "uint32_t"
    elif type_str == "int64":
        return "int64_t"
    elif type_str == "uint64":
        return "uint64_t"
    elif type_str == "int128":
        return "int128_t"
    elif type_str == "uint128":
        return "uint128_t"
    elif type_str == "float":
        return "float"
    elif type_str == "double":
        return "double"
    elif type_str == "bool":
        return "uint8_t"
    elif type_str == "uchar":
        return "int8_t"
    elif type_str == "schar":
        return "schar_t"
    elif type_str == "string":
        return "char*"
    elif type_str == "FT::conditional":
        return "void*"
    elif type_str.find("self::") == 0:
        for node in elem_list:
            if elem.attrib["type"][6:] == node.tag:
                return node.attrib["name"]
    else: return type_str

def get_malloc_size(node, elem_list):
    void_count = 0
    numeric_count = 0
    has_special = False
    for child in node:
        if type_str == "int8": numeric_count+=1
        elif type_str == "uint8": numeric_count+=1
        elif type_str == "int16": numeric_count+=2
        elif type_str == "uint16": numeric_count+=2
        elif type_str == "int32": numeric_count+=3
        elif type_str == "uint32": numeric_count+=3
        elif type_str == "int64": numeric_count+=8
        elif type_str == "uint64": numeric_count+=8
        elif type_str == "int128": numeric_count+=16
        elif type_str == "uint128": numeric_count+=16
        elif type_str == "float": numeric_count+=32
        elif type_str == "double": numeric_count+=64
        elif type_str == "bool": numeric_count+=1
        elif type_str == "uchar": numeric_count+=1
        elif type_str == "schar": numeric_count+=1
        elif type_str == "string": has_special = True
        elif type_str == "FT::conditional": pass
        elif type_str.find("self::") == 0: void_count+=1
        else: pass

def get_type_width(elem):
    type_str = str()
    try:
        type_str = elem.attrib["type"]
    except KeyError:
        print("xml node does not have a type attribute: " + elem.tag)
    if type_str == "int8": return 1
    elif type_str == "uint8": return 1
    elif type_str == "int16": return 2
    elif type_str == "uint16": return 2
    elif type_str == "int32": return 4
    elif type_str == "uint32": return 4
    elif type_str == "int64": return 8
    elif type_str == "uint64": return 8
    elif type_str == "int128": return 16
    elif type_str == "uint128": return 16
    elif type_str == "float": return 4
    elif type_str == "double": return 8
    elif type_str == "bool": return 1
    elif type_str == "uchar": return 1
    elif type_str == "schar": return 1
    elif type_str == "string": return 0
    elif type_str == "FT::conditional": return 0
    elif type_str.find("self::") == 0: return 0
    else: return 0

def get_def_node(type_str, elem_list):
    for node in elem_list:
        if type_str == node.attrib["name"]:
            return node

def pointer_remover(name:str):
    if name[-1] == '*': return name[0:-1] + '_p'
    else: return name

def get_node_name(tag, elem_list):
    for elem in elem_list:
        if tag == elem.tag: return elem.attrib["name"]

def reader_generator(elem, elem_list):
    pass

def SigHandler_SIGINT(signum, frame):
    print()
    sys.exit(0)

def get_full_path(path, name):
    if path[-1] == "/": return path + name
    else: return path + "/" + name

def get_elem_count(elem):
    if "count" in elem.attrib:
        try:
            if str(int(elem.attrib["count"])) == elem.attrib["count"]:
                return int(elem.attrib["count"])
            else: return -1
        except ValueError:
            return -1
    else:
        return 1

def get_elem_size(elem):
    if "size" in elem.attrib:
        try:
            if str(int(elem.attrib["size"])) == elem.attrib["size"]:
                return int(elem.attrib["size"])
        except ValueError:
            return -1
    else:
        return 0

def get_encoding_read(encoding):
    if encoding == "leb128u":
        return text.c_read_leb_128_u
    elif encoding == "leb128s":
        return text.c_read_leb_128_s
    else: pass

class Argparser(object):
    def __init__(self):
        parser = argparse.ArgumentParser()
        parser.add_argument("--targetname", type=str, help="main target name")
        parser.add_argument("--outdir", type=str, help="path to output dir")
        parser.add_argument("--structs", type=str, help="the structs json file")
        parser.add_argument("--structsinclude", type=str, help="the path to the header that's going to be included by structs.h before structure declarations.")
        parser.add_argument("--xml", type=str, help="paht to the xml file")
        parser.add_argument("--name", type=str, help="will be used to create some names in the source code")
        parser.add_argument("--dbg", action="store_true", help="debug", default=False)
        parser.add_argument("--datetime", action="store_true", help="print date and time in autogen files", default=False)
        parser.add_argument("--inline", action="store_true", help="inlines reader funcs", default=False)
        parser.add_argument("--static", action="store_true", help="statics reader funcs", default=False)
        parser.add_argument("--verbose", action="store_true", help="verbose", default=False)
        # TODO
        parser.add_argument("--forcenullterm", action="store_true", help="terminate all strings with null even if they are not originally null-terminated", default=False)
        parser.add_argument("--strbuffersize", type=int, help="the size of the buffer for string reads", default=100)
        parser.add_argument("--strbuffgrowfactor", type=float, help="the factor by which the strbuffer will grow", default=1.6)
        parser.add_argument("--voidbuffersize", type=int, help="the size of the buffer for void* buffer", default=100)
        parser.add_argument("--voidbuffgrowfactor", type=float, help="the factor by which the voidbuffer will grow", default=1.6)
        parser.add_argument("--singlefile", action="store_true", help="the generated code will be put in a single file", default=False)
        parser.add_argument("--singlefilename", type=str, help="name of the single file")
        self.args = parser.parse_args()

class C_Obj():
    def __init__(self, str, ancestry):
        self.malloc = str
        self.ancestry = ancestry

def get_script_path():
    return os.path.dirname(os.path.realpath(sys.argv[0]))

def dupemake(path, main_name):
    os.chdir(get_script_path())
    copy("./resources/makefile", path)
    makefile_path = get_full_path(path, "makefile")
    for line in fileinput.input(makefile_path, inplace=True):
        if "XXX" in line:
            line = line.replace("XXX", main_name)
        sys.stdout.write(line)

class CodeGen(object):
    def __init__(self, argparser):
        self.argparser = argparser
        self.dnt = datetime.datetime.now().isoformat()
        print(self.dnt)
        self.elems = []
        self.def_elems = []
        self.read_elems = []
        self.read_iter = []
        self.def_iter = []
        self.mem_size = {}
        self.tree = xml.etree.ElementTree.parse(self.argparser.args.xml)
        self.root = self.tree.getroot()
        self.aggregate_source = ""
        self.aggregate_source_h = ""
        self.aggregate_flags = ""
        self.read_source = ""
        self.read_flags = ""
        self.struct_source = ""
        self.struct_flags = ""
        self.malloc_list = []

    def file_manager(self):
        if self.argparser.args.singlefile:
            name = self.argparser.args.singlefilename
            self.read_source = self.argparser.args.outdir + "/" + name
            self.aggregate_source = self.argparser.args.outdir + "/" + name
            self.struct_source = self.argparser.args.outdir + "/" + name
        else:
            self.read_source = self.argparser.args.outdir + "/read.c"
            self.aggregate_source = self.argparser.args.outdir + "/aggregate.c"
            self.aggregate_source_h = self.argparser.args.outdir + "/aggregate.h"
            self.struct_source_h = self.argparser.args.outdir + "/structs.h"
            self.struct_source = self.argparser.args.outdir + "/structs.c"

    def init_hook(self):
        pass

    def init(self):
        dupemake(self.argparser.args.outdir, self.argparser.args.targetname)

    def dump_elems(self):
        for elem in self.elems:
            print("XXXX " + elem.tag)
            print(elem.attrib)

    def dump_def_elems(self):
        for elem in self.def_elems:
            print("XXXX " + elem.tag)
            print(elem.attrib)

    def dump_read_elems(self):
        for elem in self.read_elems:
            print("XXXX " + elem.tag)
            print(elem.attrib)

    def dump_mem_dict(self):
        for key, value in self.mem_size.items():
            print(key + ".." + value)

    def dump_all_childs(self):
        for node in self.root.iter():
            print(node.tag)

    def dump_malloc(self):
        for obj in self.malloc_list:
            print(obj.malloc + ":" + str(obj.ancestry))

    def gen_reader_funcs(self):
        temp_dec_list = []

        read_source = open(self.read_source, "w")
        read_source.write("\n// automatically generated by faultrieber\n")
        read_source.write("// " + self.dnt + "\n\n")
        read_source.write(text.header_list)
        read_source.write('#include "./read.h"\n')
        read_source.write('#include "./structs.h"\n\n')
        inline = "inline " if self.argparser.args.inline else ""
        static = "static " if self.argparser.args.static else ""
        for elem in self.def_elems + self.read_elems:
            dummy_list = []
            dummy_string = str()
            pointer = str()
            access = "."
            dummy_static = str()
            if "isaggregate" in elem.attrib:
                #pointer = "*"
                pointer = ""
                access = "->"
                dummy_static = ""
            if "isaggregate" in elem.attrib:
                dummy_string += ", " + elem.attrib["name"] + "*"  + " dummy_" + elem.attrib["name"]
                read_source.write(static + inline + text.c_read_elem_sig.replace("YYY", elem.attrib["name"]).replace("XXX", elem.attrib["name"]+pointer))
                read_source.write("dummy = malloc(sizeof(" + elem.attrib["name"] + "));\n")
                read_source.write(text.c_void_manager_proto.replace("XXX", "dummy"));
                self.malloc_list.append(C_Obj(elem.attrib["name"], [elem.tag]))
                count = get_elem_count(elem)
                if count == 1:
                    for child in elem:
                        child_count = get_elem_count(child)
                        ref_node_name = type_resolver(child, self.def_elems)
                        ref_node = get_def_node(ref_node_name, self.def_elems)
                        size = get_elem_size(child)
                        read_size_replacement = str()
                        if size > 0:
                            read_size_replacement = str(size)
                        if size == -1:
                            if "delimiter" in child.attrib:
                                ref_size = ""
                            else:
                                ref_size = "dummy->" + get_node_name(child.attrib["size"][6:], elem)
                        if "conditional" in child.attrib:
                            cond_name = get_node_name(child.attrib["condition"][6:], elem)
                            for cond in child:
                                child_count = get_elem_count(cond)
                                ref_node_name = type_resolver(cond, self.def_elems)
                                ref_node = get_def_node(ref_node_name, self.def_elems)
                                if ref_node:
                                    read_source.write("if (dummy->" + cond_name + "==" + str(cond.text) + "){\n")
                                    read_source.write("dummy->" + cond.attrib["name"] + "=malloc(sizeof(" + ref_node.attrib["name"] + "));")
                                    read_source.write(text.c_void_manager_proto.replace("XXX", "dummy->" + cond.attrib["name"]));
                                    self.malloc_list.append(C_Obj(ref_node.attrib["name"], [elem.tag, child.tag]))
                                    if child_count == 1:
                                        for_read = text.c_read_elem_sig_2.replace("XXX", ref_node_name).replace("YYY", "dummy->" + cond.attrib["name"]) + ";\n"
                                        read_source.write(for_read)
                                    elif child_count > 1:
                                        for_read = text.c_read_elem_sig_2.replace("XXX", ref_node_name).replace("YYY", "dummy->" + cond.attrib["name"] + "[i]") + ";\n"
                                        read_source.write(for_read)
                                    else: # child_count == -1
                                        count_name_str = cond.attrib["count"][6:]
                                        read_source.write("if (" + "dummy->" + get_node_name(count_name_str, elem) + ")\n")
                                        read_source.write("dummy->" + cond.attrib["name"] + " = " + "malloc(sizeof(void*)*" + "dummy->" + get_node_name(count_name_str, child) + ");\n")
                                        read_source.write(text.c_void_manager_proto.replace("XXX", "dummy->" + cond.attri["name"]));
                                        self.malloc_list.append(C_Obj("sizeof(void*)*dummy->"+get_node_name(count_name_str, child), [elem.attrib["name"], child.attrib["name"], cond.arrtib["name"]]))
                                        for_read = text.c_read_elem_sig_2.replace("XXX", ref_node_name).replace("YYY", "dummy->" + cond.attrib["name"] + "[i]") + ";\n"
                                        read_source.write(text.simple_loop.replace("YYY", for_read).replace("XXX", "dummy->" + get_node_name(count_name_str, child)))
                                    read_source.write("}\n")
                                else:
                                    read_source.write("if (dummy->" + cond_name + "==" + str(cond.text) + "){\n")
                                    read_source.write("dummy->" + cond.attrib["name"] + "=malloc(sizeof(" + ref_node_name  + "));")
                                    read_source.write(text.c_void_manager_proto.replace("XXX", "dummy->" + cond.attrib["name"]));
                                    for_read = str()
                                    if child_count == 1: array_subscript = ""
                                    elif child_count > 1: array_subscript = "[i]"
                                    else: array_subscript = "[i]"
                                    if "size" in cond.attrib:
                                        if "encoding" in cond.attrib:
                                            for_read = "dummy->" + cond.attrib["name"] + array_subscript + "=" + get_encoding_read(cond.attrib["encoding"])
                                        else:
                                            if cond.attrib["name"] == "string":
                                                for_read = "dummy->" + cond.attrib["name"] + " = " + "malloc(" + ref_size + "+1);\n"
                                                read_source.write(text.c_void_manager_proto.replace("XXX", "dummy->" + cond.attrib["name"]));
                                                for_read += "dummy->" + cond.attrib["name"] + "["+ref_size+"]=" + "0;\n"
                                                for_read = text.c_read_gen_2_no.replace("XXX", "dummy" + "->"+ cond.attrib["name"] + array_subscript).replace("YYY", ref_size)
                                            else:
                                                for_read = text.c_read_gen_2.replace("XXX", "dummy" + "->"+ cond.attrib["name"] + array_subscript).replace("YYY", ref_size)
                                    else:
                                        if "encoding" in cond.attrib:
                                            for_read = "dummy->" + cond.attrib["name"] + array_subscript + " = " + get_encoding_read(cond.attrib["encoding"])
                                        else:
                                            if cond.attrib["type"] == "string":
                                                for_read = text.c_read_gen_no.replace("XXX", "dummy" + "->" + cond.attrib["name"] + array_subscript).replace("YYY", ref_node_name)
                                            else:
                                                for_read = text.c_read_gen.replace("XXX", "dummy" + "->" + cond.attrib["name"] + array_subscript).replace("YYY", ref_node_name)
                                    if child_count == 1:
                                        read_source.write(for_read)
                                    elif child_count > 1:
                                        read_source.write(text.simple_loop.replace("YYY", for_read).replace("XXX", str(child_count)))
                                    else: # child_count = -1
                                        count_name_str = cond.attrib["count"][6:]
                                        read_source.write("dummy->" + cond.attrib["name"] + " = " + "malloc(sizeof(" + type_resolver(cond, self.def_elems + self.read_elems)  + ")*" + "dummy->" + get_node_name(count_name_str, elem) + ");\n")
                                        read_source.write(text.c_void_manager_proto.replace("XXX", "dummy->" + cond.attrib["name"]));
                                        read_source.write("if (" + "dummy->" + get_node_name(count_name_str, child) + ")\n")
                                        read_source.write(text.simple_loop.replace("YYY", for_read).replace("XXX", "dummy->" + get_node_name(count_name_str, elem)))
                                    read_source.write("}\n")
                            continue
                        if ref_node:
                            ref_node_name = pointer_remover(ref_node.attrib["name"])
                            if child_count == 1:
                                for_read = text.c_read_elem_sig_2.replace("XXX", ref_node_name).replace("YYY", "dummy->" + child.attrib["name"]) + ";\n"
                                read_source.write("dummy->" + child.attrib["name"] + "=" + for_read)
                            elif child_count > 1:
                                for_read = text.c_read_elem_sig_2.replace("XXX", ref_node_name).replace("YYY", "dummy->" + child.attrib["name"] + "[i]") + ";\n"
                                read_source.write("dummy->" + child.attrib["name"] + "=" + for_read)
                            else: # child_count == -1
                                count_name_str = child.attrib["count"][6:]
                                read_source.write("if (" + "dummy->" + get_node_name(count_name_str, elem) + ")\n")
                                read_source.write("dummy->" + child.attrib["name"] + " = " + "malloc(sizeof(void*)*" + "dummy->" + get_node_name(count_name_str, elem) + ");\n")
                                read_source.write(text.c_void_manager_proto.replace("XXX", "dummy->" + child.attrib["name"]));
                                for_read = text.c_read_elem_sig_2.replace("XXX", ref_node_name).replace("YYY", "dummy->" + child.attrib["name"] + "[i]") + ";\n"
                                read_source.write(text.simple_loop.replace("YYY", "dummy->" + child.attrib["name"] + "[i]=" + for_read).replace("XXX", "dummy->" + get_node_name(count_name_str, elem)))
                        else:
                            for_read = str()
                            if child_count == 1: array_subscript = ""
                            elif child_count > 1: array_subscript = "[i]"
                            else: array_subscript = "[i]"
                            if "size" in child.attrib:
                                if "encoding" in child.attrib:
                                    for_read = "dummy->" + child.attrib["name"] + array_subscript + "=" + get_encoding_read(child.attrib["encoding"])
                                else:
                                    if child.attrib["type"] == "string":
                                        if "delimiter" in child.attrib:
                                            delimiter = child.attrib["delimiter"]
                                            for_read = "int32_t " + child.attrib["name"] + "_del_pos =" + text.c_read_until_delimiter_proto.replace("XXX", delimiter) + ";\n"
                                            for_read += "dummy->" + child.attrib["name"] + "=" + "malloc(" + child.attrib["name"] + "_del_pos);\n"
                                            for_read +=text.c_void_manager_proto.replace("XXX", "dummy->" + child.attrib["name"]);
                                            for_read += text.c_read_gen_2_no.replace("XXX", "dummy" + "->"+ child.attrib["name"] + array_subscript).replace("YYY", child.attrib["name"]+"_del_pos")
                                        else:
                                            for_read = "dummy->" + child.attrib["name"] + " = " + "malloc(" + ref_size + "+1);\n"
                                            for_read += text.c_void_manager_proto.replace("XXX", "dummy->" + child.attrib["name"]);
                                            for_read += "dummy->" + child.attrib["name"] + "["+ref_size+"]=" + "0;\n"
                                            for_read += text.c_read_gen_2_no.replace("XXX", "dummy" + "->"+ child.attrib["name"] + array_subscript).replace("YYY", ref_size)
                                    else:
                                        for_read = text.c_read_gen_2.replace("XXX", "dummy" + "->"+ child.attrib["name"] + array_subscript).replace("YYY", ref_size)
                            else:
                                if "encoding" in child.attrib:
                                    for_read = "dummy->" + child.attrib["name"] + array_subscript + " = " + get_encoding_read(child.attrib["encoding"])
                                else:
                                    if child.attrib["type"] == "string":
                                        for_read = text.c_read_gen_no.replace("XXX", "dummy" + "->" + child.attrib["name"] + array_subscript).replace("YYY", ref_node_name)
                                    else:
                                        for_read = text.c_read_gen.replace("XXX", "dummy" + "->" + child.attrib["name"] + array_subscript).replace("YYY", ref_node_name)
                            if child_count == 1:
                                read_source.write(for_read)
                            elif child_count > 1:
                                read_source.write(text.simple_loop.replace("YYY", for_read).replace("XXX", str(child_count)))
                            else: # child_count = -1
                                count_name_str = child.attrib["count"][6:]
                                read_source.write("dummy->" + child.attrib["name"] + " = " + "malloc(sizeof(" + type_resolver(child, self.def_elems + self.read_elems)  + ")*" + "dummy->" + get_node_name(count_name_str, elem) + ");\n")
                                read_source.write(text.c_void_manager_proto.replace("XXX", "dummy->" + child.attrib["name"]));
                                read_source.write("if (" + "dummy->" + get_node_name(count_name_str, elem) + ")\n")
                                read_source.write(text.simple_loop.replace("YYY", for_read).replace("XXX", "dummy->" + get_node_name(count_name_str, elem)))
                else:
                    pass
            # if not aggregate
            # if its an aggregate type there is only a single element in the
            # read funtion so we dont really need to worry about multiple
            # instances with the same name
            else:
                read_source.write(static + inline + text.c_read_elem_sig.replace("YYY", elem.attrib["name"]).replace("XXX", elem.attrib["name"]+pointer))
                read_source.write("dummy = malloc(sizeof(" + elem.attrib["name"] + "));\n")
                read_source.write(text.c_void_manager_proto.replace("XXX", "dummy"));
                read_source.write(text.c_read_gen.replace("XXX", "dummy->" + elem.attrib["name"]).replace("YYY", type_resolver(elem, self.def_elems)))
            read_source.write("return dummy;\n")
            read_source.write(text.c_function_close + "\n")
        read_source_header = open(self.argparser.args.outdir + "/read.h", "w")
        read_source_header.write("#ifndef FT_READ_H\n#define FT_READ_H\n")
        read_source_header.write('#ifdef __cplusplus\nextern "C" {\n#endif\n')
        read_source_header.write('#include "./structs.h"\n')
        for elem in self.def_elems + self.read_elems:
            read_source_header.write(static + inline + text.c_read_elem_sig_h.replace("YYY", elem.attrib["name"]).replace("XXX", elem.attrib["name"]))
        read_source_header.write('#ifdef __cplusplus\n}\n#endif\n')
        read_source_header.write("#endif //end of header guard\n\n")

    def gen_void_train(self):
        void_source = open(self.aggregate_source, "w")
        void_source_h = open(self.aggregate_source_h, "w")
        void_source.write("\n// automatically generated by faultreiber\n")
        void_source.write("// " + self.dnt + "\n")
        void_source.write('#include "./structs.h"\n')
        void_source.write('#include "./read.h"\n')
        void_source.write("#include <stdlib.h>\n")
        void_source.write("void** void_train;\n")
        void_source.write("uint64_t current_void_size = 0U;\n")
        void_source.write("uint64_t current_void_count = 0U;\n")
        void_source_h.write('#ifndef FT_AGGREGATE_H\n#define FT_AGGREGATE_H\n')
        void_source_h.write('#ifdef __cplusplus\nextern "C" {\n#endif\n')
        void_source_h.write('#include "./structs.h"\n')
        # generating the extern declarations and definitions
        for elem in self.read_elems:
            count = get_elem_count(elem)
            size = get_elem_size(elem)
            if count != 1:
                void_source_h.write("extern " + elem.attrib["name"] + "** " + elem.attrib["name"] + "_container;\n")
                void_source.write(elem.attrib["name"] + "** " + elem.attrib["name"] + "_container;\n")
            else:
                void_source_h.write("extern " + elem.attrib["name"] + "* " + elem.attrib["name"] + "_container;\n")
                void_source.write(elem.attrib["name"] + "* " + elem.attrib["name"] + "_container;\n")
        # end
        void_source.write("void malloc_all(void) {\n")
        void_source_h.write("void malloc_all(void);\n")
        count_int = int()
        count_void = int()
        read_count = len(self.read_elems)
        extern = ""
        # FIXME-count and size present together is not being handled at all
        for elem in self.read_elems:
            if "isaggregate" in elem.attrib:
                for child in elem:
                    ref_node_name = type_resolver(child, self.def_elems)
                    ref_node = get_def_node(ref_node_name, self.def_elems)
                    if ref_node: count_void+=1
                    count = get_elem_count(child)
                    size = get_elem_size(child)
                    type_width = get_type_width(child)
                    if count > 0: count_int+=count*type_width
                    if count < 0: count_void+=1
                    if size > 0: count_int+=size
                    if size < 0: count_void+=1
                sizeof = (str(count_int) if count_int > 0 else ("")) + ("+" if count_void>0 and count_int>0 else "") + ((str(count_void)+"*"+"sizeof(void*)") if count_void > 0 else "")
                count_int = 0
                count_void = 0
            else:
                ref_node_name = type_resolver(elem, self.def_elems)
                ref_node = get_def_node(ref_node_name, self.def_elems)
                if ref_node: count_void+=1
                if "size" in elem.attrib:
                    count = get_elem_count(elem)
                    if count > 0: count_int+= count
                    else: count_void+=1
                if "count" in elem.attrib:
                    size = get_elem_size(elem)
                    if size > 0: count_int+=size
                    else: count_void+=1
                sizeof = (str(count_int)+"+" if count_int > 0 else "") + (str(count_void)+"*"+"sizeof(void*)") if count_void > 0 else ""
                count_int = 0
                count_void = 0
        void_source.write("}\n")
        void_source.write("void read_aggr_"+self.argparser.args.name+"(int _fd) {\n")
        for elem in self.read_elems:
            if "isaggregate" in elem.attrib:
                for child in elem:
                    ref_node_name = type_resolver(child, self.def_elems)
                    ref_node = get_def_node(ref_node_name, self.def_elems)
                    if ref_node:
                        pass
                        #void_source.write(elem.attrib["name"] + "_container->" + child.attrib["name"] + " = " + elem.attrib["name"] + "_" + child.attrib["name"] + "_container"  + ";\n")

    def gen_aggregate_read(self):
        agg_source = open(self.aggregate_source, "a")
        agg_source_h = open(self.aggregate_source_h, "a")
        print(self.argparser.args.name)
        agg_source_h.write("void read_aggr_"+self.argparser.args.name+"(int _fd);\n")
        agg_source.write("uint8_t eof = 0U;")
        for elem in self.read_elems:
            if "unorderedbegin" in elem.attrib:
                agg_source.write("do {\n")

            if "unordered" in elem.attrib:
                for child in elem:
                    if "issign" in child.attrib:
                        sign_type = type_resolver(child, self.def_elems+ self.read_elems)
                        sign_name = " dummy_" + child.attrib["name"] + elem.attrib["name"]
                        agg_source.write("if (read(_fd, &eof, 1)<0) break;\nelse lseek(_fd, -1, SEEK_CUR);\n")
                        agg_source.write(sign_type + sign_name + ";\n")
                        agg_source.write(text.c_read_gen.replace("XXX", sign_name).replace("YYY", sign_type))
                        agg_source.write("lseek(_fd, -sizeof(" + sign_type + "), SEEK_CUR);\n")
                        agg_source.write("if (" + sign_name + "==" + child.text + "){\n")
            agg_source.write(elem.attrib["name"] + "_container = " + "ft_read_" + elem.attrib["name"] + "(_fd," + elem.attrib["name"] + "_container"  + ");\n")
            if "unordered" in elem.attrib: agg_source.write("}\n")

            if "unorderedend" in elem.attrib:
                agg_source.write("}while(0);\n")
        agg_source.write("}\n")

    #FIXME-not handling double pointers
    def gen_release(self):
        agg_source = open(self.aggregate_source, "a")
        agg_source_h = open(self.aggregate_source_h, "a")
        agg_source_h.write("void release_all(void);\n")
        agg_source.write("void release_all(void) {\n")
        agg_source.write("for (int i=current_void_count-1;i>=0;--i) {\n")
        agg_source.write("free(void_train[i]);\n}\n")
        agg_source.write("free(void_train);\n")
        agg_source.write("}\n")

    def gen_return(self):
        agg_source = open(self.aggregate_source, "a")
        agg_source_h = open(self.aggregate_source_h, "a")
        for elem in self.read_elems:
            agg_source.write(elem.attrib["name"] + "* ft_ret_" + elem.attrib["name"] + "(void) {\n")
            agg_source.write("return " + elem.attrib["name"] + "_container"+ ";\n")
            agg_source.write("}\n")
            agg_source_h.write(elem.attrib["name"] + "* ft_ret_" + elem.attrib["name"] + "(void);\n")
        agg_source_h.write('#ifdef __cplusplus\n}\n#endif\n')
        agg_source_h.write("#endif //end of header guard\n\n")

    def read_xml(self):
        if self.argparser.args.xml:
            def_header = open(self.argparser.args.outdir + "/defines.h", "w")
            def_header.write("\n// automatically generated by faultreiber\n")
            def_header.write("// " + self.dnt + "\n")
            def_header.write(text.header_inttype + "\n")
            tree = xml.etree.ElementTree.parse(self.argparser.args.xml)
            root = tree.getroot()
            read_tree = xml.etree.ElementTree.Element("read")
            def_tree = xml.etree.ElementTree.Element("def")
            for child in root:
                if child.tag == "Read":
                    read_tree = child
                if child.tag == "Definition":
                    def_tree = child
            for child in read_tree:
                self.read_elems.append(child)
            for child in def_tree:
                self.def_elems.append(child)
            read_iter = read_tree.iter(tag=None)
            def_iter = def_tree.iter(tag=None)
            self.read_iter = read_iter
            self.def_iter = def_iter
            for child in def_iter:
                self.elems.append(child)
                if "isaggregate" in child.attrib:
                    def_header.write("typedef struct {\n")
                    for childerer in child:
                        c_type = type_resolver(childerer, self.elems)
                        def_header.write("\t" + c_type + " " + childerer.attrib["name"] + ";\n")
                    def_header.write("}" + child.attrib["name"] + ";\n\n")
            for child in read_iter:
                self.elems.append(child)
                if "isaggregate" in child.attrib:
                    def_header.write("typedef struct {\n")
                    for childerer in child:
                        c_type = type_resolver(childerer, self.elems)
                        def_header.write("\t" + c_type + " " + childerer.attrib["name"] + ";\n")
                    def_header.write("}" + child.attrib["name"] + ";\n\n")

    def gen_struct_header_xml(self):
        struct_source = open(self.struct_source_h, "w")
        struct_source_c = open(get_full_path(self.argparser.args.outdir, "structs.c"), "w")
        struct_source.write(text.autogen_warning)
        struct_source_c.write(text.autogen_warning)
        struct_source.write("// " + self.dnt + "\n")
        struct_source_c.write("// " + self.dnt + "\n")
        struct_source.write("#ifndef FT_STRUCTS_H\n#define FT_STRUCTS_H\n")
        struct_source.write('#ifdef __cplusplus__\nextern "C" {\n#endif\n')
        struct_source_c.write('#include "structs.h"\n')
        struct_source_c.write('#include "stdlib.h"\n')
        struct_source_c.write('#include "stdio.h"\n')
        struct_source.write('#include <unistd.h>\n')
        struct_source.write(text.header_inttype)
        struct_source_c.write(text.c_read_leb_u_def + "\n")
        struct_source_c.write(text.c_read_leb_s_def + "\n")
        struct_source_c.write(text.c_read_until_delimiter + "\n")
        struct_source_c.write(text.c_void_manager + "\n")
        struct_source.write("extern void** void_train;\n")
        struct_source.write("extern uint64_t current_void_size;\n")
        struct_source.write("extern uint64_t current_void_count;\n")
        struct_source.write(text.c_read_leb_128_u_sig + "\n")
        struct_source.write(text.c_read_leb_128_s_sig + "\n")
        struct_source.write(text.c_read_until_delimiter_sig + "\n")
        struct_source.write(text.c_void_manager_sig + "\n")
        if self.argparser.args.structsinclude:
            copy(self.argparser.args.structsinclude, self.argparser.args.outdir)
            pos = self.argparser.args.structsinclude.rfind("/")
            sub = self.argparser.args.structsinclude[pos+1:]
            struct_source.write('#include "' + sub + '"\n\n')
        for child in self.def_elems + self.read_elems:
            struct_source.write("typedef struct {\n")
            if not "isaggregate" in child.attrib:
                ref_type = type_resolver(child, self.def_elems + self.read_elems)
                def_node = get_def_node(ref_type, self.def_elems + self.read_elems)
                pointer = str()
                if "count" in child.attrib:
                    if child.attrib["count"] != "1":
                        pointer = "*"
                if def_node:
                    struct_source.write(ref_type + pointer + "* " + child.attrib["name"] + ";\n")
                else:
                    struct_source.write(ref_type + pointer + " " + child.attrib["name"] + ";\n")
            for childer in child:
                ref_type = type_resolver(childer, self.def_elems + self.read_elems)
                def_node = get_def_node(ref_type, self.def_elems + self.read_elems)
                pointer = str()
                if "count" in childer.attrib:
                    if childer.attrib["count"] != "1":
                        pointer = "*"
                if def_node:
                    struct_source.write(ref_type + pointer + "* " + childer.attrib["name"] + ";\n")
                else:
                    struct_source.write(ref_type + pointer + " " + childer.attrib["name"] + ";\n")
            struct_source.write("}" + child.attrib["name"] + ";\n\n")
        struct_source.write('#ifdef __cplusplus__\n}\n#endif\n')
        struct_source.write(text.pragma_endif)
        struct_source.write(text.last_comment)

    def run(self):
        self.init()
        self.init_hook()
        self.file_manager()
        self.read_xml()
        self.gen_reader_funcs()
        self.gen_struct_header_xml()
        self.gen_void_train()
        self.gen_aggregate_read()
        self.gen_release()
        self.gen_return()

# write code here
def premain(argparser):
    signal.signal(signal.SIGINT, SigHandler_SIGINT)
    #here
    codegen = CodeGen(argparser)
    codegen.run()

def main():
    argparser = Argparser()
    if argparser.args.dbg:
        try:
            premain(argparser)
        except Exception as e:
            print(e.__doc__)
            if e.message: print(e.message)
            variables = globals().copy()
            variables.update(locals())
            shell = code.InteractiveConsole(variables)
            shell.interact(banner="DEBUG REPL")
    else:
        premain(argparser)

if __name__ == "__main__":
    main()