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/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
Copyright (c) 1999-2001 Palm, Inc. or its subsidiaries.
All rights reserved.
This file is part of the Palm OS Emulator.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
\* ===================================================================== */
#include "EmCommon.h"
#include "EmMapFile.h"
#include "ChunkFile.h" // Chunk, EmStreamChunk
#include "EmFileRef.h" // EmFileRef
#include "EmStreamFile.h" // EmStreamFile
#include "Miscellaneous.h" // Strip
Bool
EmMapFile::Read (const EmFileRef& f, StringStringMap& mapData)
{
try
{
EmStreamFile fileStream (f, kOpenExistingForRead | kOpenText); // Will throw if fnf
return Read (fileStream, mapData);
}
catch (...)
{
return false;
}
return true;
}
Bool
EmMapFile::Read (EmStream& stream, StringStringMap& mapData)
{
try
{
StringStringMap theData;
string line;
char ch;
ErrCode err;
do
{
err = stream.GetBytes (&ch, 1);
if (ch == '\n' || ch == '\r' || err != 0) // End of line or end of file.
{
// Skip leading WS
line = Strip (line.c_str (), " \t", true, false);
// Skip comment and empty lines
if ((line[0] == ';' ) || (line[0] == '#' ) || (line[0] == '\0'))
{
line.erase ();
continue;
}
// Everything else is data
string::size_type p = line.find ('=');
if (p == string::npos)
{
line.erase ();
continue;
}
// Split up the line into key/value sections and
// add it to our hash table.
string key (line, 0, p);
string value (line, p + 1, line.size ());
key = Strip (key.c_str (), " \t", true, true);
value = Strip (value.c_str (), " \t", true, true);
theData[key] = value;
line.erase ();
}
else
{
line += ch;
}
}
while (err == 0);
mapData = theData;
}
catch (...)
{
return false;
}
return true;
}
Bool
EmMapFile::Write (const EmFileRef& f, const StringStringMap& mapData)
{
try
{
// Get the data in fairly raw form.
Chunk chunk;
EmStreamChunk chunkStream (chunk);
if (!Write (chunkStream, mapData))
return false;
// Now write that data to the file, letting the EmStreamFile
// class sort out line endings.
EmStreamFile fileStream (f, kCreateOrEraseForUpdate | kOpenText,
kFileCreatorCodeWarrior, kFileTypeText); // Will throw if can't create
return fileStream.PutBytes (chunk.GetPointer (), chunk.GetLength ());
}
catch (...)
{
return false;
}
return true;
}
Bool
EmMapFile::Write (EmStream& stream, const StringStringMap& mapData)
{
StringStringMap::const_iterator iter;
for (iter = mapData.begin(); iter != mapData.end(); ++iter)
{
string line = iter->first + "=" + iter->second + "\n";
stream.PutBytes (line.c_str (), line.size ());
}
return true;
}
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