treeify.d

import std.file;

void main(string[] args)
{
//    () @safe { assert(args.length == 2, "exactly one argument must be given") } ();
    auto text = cast(string) read(args[1]);
    long indent_level;
    long beginParenPos;
    bool inString = false;
    bool inStruct = false;
    bool inArray = false;

    char[] out_buffer;

    foreach(i,c;text)
    {
        auto p = i;
        if (c == '"')
            inString = !inString;
        if (!inString)
        {
            if (c == '(' || c == '[')
            {
                indent_level++;
                out_buffer ~= "\n";
                foreach(_;0 .. indent_level)
                    out_buffer ~= "  ";
            }
            if (c == ')' || c == ']')
            {
                out_buffer ~= "\n";
                foreach(_;0 .. indent_level)
                    out_buffer ~= "  ";
                indent_level--;
            }
        }
        out_buffer ~= c;
/+
        if (c == ',' && !inString)
        {
            out_buffer ~= "\n";
            foreach(_;0 .. indent_level)
                out_buffer ~= "  ";
        }
+/
    }
    (args[1] ~ ".tree").write(cast(void[])out_buffer);;
}