objc to c converter in c

public class compiler{
    string filename = "main.m";
    string[] functions;
    string text;

    char[] letters;
    int length;

    public compiler()
    {
        FileUtils.get_contents (filename, out text);
    }

    char[] string_to_char_array(string str) {
        char[] char_array = new char[str.length];

        for (int i = 0; i < str.length; i++){
        char_array[i] = (char)str.get_char(str.index_of_nth_char(i));
        }

        return char_array;
    }
    void doit ()
    {
        stdout.printf("1");
        char[] char_array = string_to_char_array(text);
        stdout.printf("2");
        for (int i=0; i < char_array.length; i++) {
            //stdout.printf("-");
            //stdout.printf("%c", char_array[i]);
            //stdout.printf("-");
            if(char_array[i] == (char)"-")
            {
                stdout.printf("4");
                if(char_array[i + 1] == (char)" ")
                {
                stdout.printf("5");
                    if(char_array[i + 2] == (char)"(")
                    {
                    stdout.printf("6");
                    //int a = i + 2;
                    //functions += assemble(char_array, a, get_howlong(char_array, a));
                    bool quit = false;
                    int index = i + 2;
                    int start = index;
                    string finale_string;

                    stdout.printf("7");
                    while (quit == false)
                    {
                        stdout.printf("8");
                        if(char_array[index] == (char)")")
                        {
                            stdout.printf("9");
                            quit = true;
                            length = index - start;
                        }
                        else
                        {
                            stdout.printf("10");
                            index++;
                        }
                    }

                    stdout.printf("11");
                    for(var k = i + 2; k < length; k++)
                    {
                        stdout.printf("12-");
                        letters += char_array[k];
                    }
                    stdout.printf("13");
                    finale_string = (string)letters;
                    functions += finale_string;
                    stdout.printf("14");

                    //end
                    }
                }
            }
        }
        for(var a = 0; a < functions.length; a++)
        {
            stdout.printf("%s\n + hey", functions[a]);
        }
    }
    static int main (string[] args) {
        compiler _compiler = new compiler();
        _compiler.doit();
        return 0;
    }
}