IniParseFindVisitor.cc

   1 /*
   2  * Copyright (c) 2002 Robert Collins.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by Robert Collins <robertc@hotmail.com>
  13  *
  14  */
  15
  16 #if 0
  17 static const char *cvsid =
  18   "\n%%% $Id$\n";
  19 #endif
  20
  21 #include "IniParseFindVisitor.h"
  22 #include "IniDBBuilder.h"
  23 #include "io_stream.h"
  24 #include "rfc1738.h"
  25 #include "ini.h"
  26 #include <stdexcept>
  27
  28 extern int yyparse ();
  29
  30 IniParseFindVisitor::IniParseFindVisitor(IniDBBuilder &aBuilder, String const &localroot) : _Builder (aBuilder), baseLength (localroot.size()), local_ini(0),
  31 error_buf(0), error_count (0),
  32 setup_timestamp (0), setup_version() {}
  33 IniParseFindVisitor::~IniParseFindVisitor(){}
  34
  35 /* look for potential packages we can add to the in-memory package
  36  * database
  37  */
  38 void
  39 IniParseFindVisitor::visitFile(String const &basePath, const WIN32_FIND_DATA *theFile)
  40 {
  41   //TODO: Test for case sensitivity issues
  42   if (String("setup.ini").casecompare(theFile->cFileName))
  43     return;
  44
  45   String path = basePath + theFile->cFileName;
  46
  47   io_stream *ini_file = io_stream::open (String ("file://") + path, "rb");
  48
  49   if (!ini_file)
  50     // We don't throw an exception, because while this is fatal to parsing, it
  51     // isn't to the visitation.
  52     {
  53       // This should never happen
  54       // If we want to handle it happening, use the log strategy call
  55       throw new runtime_error ("IniParseFindVisitor: failed to open ini file, which should never happen");
  56       return;
  57     }
  58
  59   // FIXME: use a strategy and tell about this as well.
  60   // log (LOG_BABBLE, String ("Found ini file - file://") + local_dir + "/" + path);
  61
  62   /* Copy leading part of path to temporary buffer and unescape it */
  63
  64   String prefix (&basePath.cstr_oneuse()[baseLength + 1]);
  65   String mirror = rfc1738_unescape_part (prefix.substr(0,prefix.size() - 1));
  66   _Builder.parse_mirror = mirror;
  67   ini_init (ini_file, &_Builder);
  68
  69   /*yydebug = 1; */
  70
  71   if (yyparse () || error_count > 0)
  72     // FIXME: use a stragtegy and tell on this.
  73     //MessageBox (0, error_buf, error_count == 1 ? "Parse Error" : "Parse Errors", 0);
  74     ;
  75   else
  76     local_ini++;
  77
  78   if (error_buf)
  79     *error_buf = '\0';
  80   error_count = 0;
  81
  82   if (_Builder.timestamp > setup_timestamp)
  83     {
  84       setup_timestamp = _Builder.timestamp;
  85       setup_version = _Builder.version;
  86     }
  87 }
  88
  89 int
  90 IniParseFindVisitor::iniCount() const
  91 {
  92   return local_ini;
  93 }
  94
  95 unsigned int
  96 IniParseFindVisitor::timeStamp () const
  97 {
  98   return setup_timestamp;
  99 }
 100
 101 String
 102 IniParseFindVisitor::version() const
 103 {
 104   return setup_version;
 105 }