source: cpp/common/virtfile/stringfile.h @ 1305

// This file is a part of Framsticks SDK.  http://www.framsticks.com/
// Copyright (C) 1999-2020  Maciej Komosinski and Szymon Ulatowski.
// See LICENSE.txt for details.

#ifndef _STRINGFILE_H_
#define _STRINGFILE_H_

#include "virtfile.h"
#include <common/nonstd_stl.h>
#include <string.h>

class StringFILE : public VirtFILE
{
protected:
        string& str;
        int pos;
public:
        StringFILE(string& s, int _pos = 0) : VirtFILE(""), str(s), pos(_pos) {}
        size_t Vread(void *ptr, size_t size, size_t nmemb);
        size_t Vwrite(const void *ptr, size_t size, size_t nmemb) { str.append((const char*)ptr, (int)(size * nmemb)); return nmemb; }
        int Veof() { return pos >= int(str.size()); }
        int Vputc(int c) { str += (char)c; return c; }
        int Vputs(const char *s) { str.append(s, (int)strlen(s)); return 0; }
        int Vgetc();
        char *Vgets(char *s, int size);
        int Vseek(long offset, int whence);
        long Vtell() { return pos; }
        int Vflush() { return 0; }

        const string& getString() { return str; }
};

/** this version owns the string object */
class StringFILE2 : public StringFILE
{
        string str;
public:
        StringFILE2(const string& s, int pos = 0) :StringFILE(str, pos), str(s) {}
        StringFILE2(const char* s, int pos = 0) :StringFILE(str, pos), str(s) {}
        StringFILE2() :StringFILE(str) {}
};

class StringFileSystem : public ChainFileSystem
{
public:
        StringFileSystem(VirtFileSystem *_chain = NULL) :ChainFileSystem(_chain) {}
        VirtFILE *Vfopen(const char* path, const char*mode);
        static const char PREFIX[];
        static bool isStringPath(const char* path);
};

#endif