src/file_utils.cpp

   1 /*
   2 Project: J-Ben
   3 Author:  Paul Goins
   4 Website: http://www.vultaire.net/software/jben/
   5 License: GNU General Public License (GPL) version 2
   6          (http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt)
   7
   8 File: file_utils.cpp
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  22 */
  23
  24 /* Include platform-specific files here */
  25 #ifdef __WXMSW__
  26 #include <windows.h>
  27 #else
  28 #include <unistd.h>
  29 #endif
  30
  31 /* Normal includes go here */
  32 #include "file_utils.h"
  33 #include "encoding_convert.h"
  34 #include <fstream>
  35 #include <sstream>
  36 using namespace std;
  37
  38 /* Tries to open the specified file.  If successful, it'll read in its entire
  39    contents into a wstring, and apply the specified conversion. */
  40 int ReadEncodedFile(const char *filename, wstring& dest,
  41                                         const char *src_encoding) {
  42         ifstream ifile(filename, ios::in | ios::binary);
  43         stringbuf data;
  44         if(ifile.is_open()) {
  45                 while(!ifile.eof() && !ifile.fail())
  46                         ifile >> &data;
  47                 ifile.close();
  48                 if(ifile.fail()) return REF_FILE_OPEN_ERROR;
  49
  50                 dest = ConvertString<char, wchar_t>
  51                         (data.str().c_str(), src_encoding, wcType.c_str());
  52                 return REF_SUCCESS;
  53
  54         } else return REF_FILE_NOT_FOUND;
  55 }
  56
  57 /* Platform-independent getcwd function. */
  58 string GetCWD() {
  59         string s;
  60
  61         /* Yes, the size for the buffer used in
  62            this function is maybe overkill. */
  63 #ifdef __WXMSW__
  64         wchar_t *buffer = new wchar_t[0x10000];
  65         GetCurrentDirectoryW(0x10000, buffer);
  66         s = utfconv_wm(buffer);
  67 #else
  68         char *buffer = new char[0x10000];
  69         if(getcwd(buffer, 0x10000))
  70                 s = buffer;
  71 #endif
  72
  73         delete[] buffer;
  74         return s;
  75 }
  76
  77 bool FileExists(const char *filename) {
  78         bool result=false;
  79         ifstream f(filename);
  80         if(f.is_open()) {
  81                 result=true;
  82                 f.close();
  83         }
  84         return result;
  85 }