pokeruby/tools/preproc/preproc.cpp

// Copyright(c) 2016 YamaArashi
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#include <stack>
#include "preproc.h"
#include "asm_file.h"
#include "charmap.h"

Charmap* g_charmap;

int main(int argc, char **argv)
{
    if (argc != 3)
    {
        fprintf(stderr, "Usage: %s ASM_FILE CHARMAP_FILE", argv[0]);
        return 1;
    }

    g_charmap = new Charmap(argv[2]);

    std::stack<AsmFile> stack;

    stack.push(AsmFile(argv[1]));

    for (;;)
    {
        while (stack.top().IsAtEnd())
        {
            stack.pop();
            
            if (stack.empty())
                return 0;
            else
                stack.top().OutputLocation();
        }

        Directive directive = stack.top().GetDirective();

        switch (directive)
        {
        case Directive::Include:
            stack.push(AsmFile(stack.top().ReadPath()));
            stack.top().OutputLocation();
            break;
        case Directive::String:
        {
            unsigned char s[kMaxStringLength];
            int length = stack.top().ReadString(s);

            printf("\t.byte ");
            for (int i = 0; i < length; i++)
            {
                printf("0x%02X", s[i]);

                if (i < length - 1)
                    printf(", ");
            }
            putchar('\n');
            break;
        }
        case Directive::Unknown:
            stack.top().OutputLine();
            break;
        }
    }
}