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AppleWin/source/YamlHelper.cpp

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/*
AppleWin : An Apple //e emulator for Windows
Copyright (C) 1994-1996, Michael O'Brien
Copyright (C) 1999-2001, Oliver Schmidt
Copyright (C) 2002-2005, Tom Charlesworth
Copyright (C) 2006-2015, Tom Charlesworth, Michael Pohoreski
AppleWin 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.
AppleWin is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with AppleWin; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "StdAfx.h"
#include "YamlHelper.h"
#include "Log.h"
#include <sstream>
int YamlHelper::InitParser(const char* pPathname)
{
m_hFile = fopen(pPathname, "r");
if (m_hFile == NULL)
{
return 0;
}
if (!yaml_parser_initialize(&m_parser))
{
return 0;
}
// Note: C/C++ > Pre-Processor: YAML_DECLARE_STATIC;
yaml_parser_set_input_file(&m_parser, m_hFile);
return 1;
}
void YamlHelper::FinaliseParser(void)
{
if (m_hFile)
fclose(m_hFile);
m_hFile = NULL;
yaml_event_delete(&m_newEvent);
yaml_parser_delete(&m_parser);
}
UINT YamlHelper::ParseFileHdr(const char* tag)
{
std::string scalar;
if (!GetScalar(scalar))
throw std::runtime_error(SS_YAML_KEY_FILEHDR ": Failed to find scalar");
if (scalar != SS_YAML_KEY_FILEHDR)
throw std::runtime_error("Failed to find file header");
GetMapStartEvent();
YamlLoadHelper yamlLoadHelper(*this);
//
std::string value = yamlLoadHelper.LoadString(SS_YAML_KEY_TAG);
if (value != tag)
{
//printf("%s: Bad tag (%s) - expected %s\n", SS_YAML_KEY_FILEHDR, value.c_str(), tag);
throw std::runtime_error(SS_YAML_KEY_FILEHDR ": Bad tag");
}
return yamlLoadHelper.LoadUint(SS_YAML_KEY_VERSION);
}
void YamlHelper::GetNextEvent(void)
{
yaml_event_delete(&m_newEvent);
if (!yaml_parser_parse(&m_parser, &m_newEvent))
{
std::ostringstream error("Save-state parser error: ");
if (m_parser.problem != NULL)
error << m_parser.problem;
else
error << "unknown";
error << " @ " << m_parser.problem_mark.line << ":" << m_parser.problem_mark.column;
throw std::runtime_error(error.str());
}
}
int YamlHelper::GetScalar(std::string& scalar)
{
int res = 1;
bool bDone = false;
while (!bDone)
{
GetNextEvent();
switch(m_newEvent.type)
{
case YAML_SCALAR_EVENT:
scalar = m_scalarName = (const char*)m_newEvent.data.scalar.value;
res = 1;
bDone = true;
break;
case YAML_SEQUENCE_END_EVENT:
res = 0;
bDone = true;
break;
case YAML_MAPPING_END_EVENT:
res = 0;
bDone = true;
break;
case YAML_STREAM_END_EVENT:
res = 0;
bDone = true;
break;
}
}
return res;
}
void YamlHelper::GetMapStartEvent(void)
{
GetNextEvent();
if (m_newEvent.type != YAML_MAPPING_START_EVENT)
{
//printf("Unexpected yaml event (%d)\n", m_newEvent.type);
throw std::runtime_error("Unexpected yaml event");
}
}
int YamlHelper::ParseMap(MapYaml& mapYaml)
{
mapYaml.clear();
const char*& pValue = (const char*&) m_newEvent.data.scalar.value;
bool bKey = true;
std::string pKey;
int res = 1;
bool bDone = false;
while (!bDone)
{
GetNextEvent();
switch(m_newEvent.type)
{
case YAML_STREAM_END_EVENT:
res = 0;
bDone = true;
break;
case YAML_MAPPING_START_EVENT:
{
MapValue mapValue;
mapValue.value = "";
mapValue.subMap = new MapYaml;
mapYaml[pKey] = mapValue;
res = ParseMap(*mapValue.subMap);
if (!res)
throw std::runtime_error("ParseMap: premature end of file during map parsing");
bKey = true; // possibly more key,value pairs in this map
}
break;
case YAML_MAPPING_END_EVENT:
bDone = true;
break;
case YAML_SCALAR_EVENT:
if (bKey)
{
_ASSERT(pValue); // std::string(NULL) generates AccessViolation
pKey = pValue;
}
else
{
MapValue mapValue;
mapValue.value = pValue;
mapValue.subMap = NULL;
mapYaml[pKey] = mapValue;
pKey.clear();
}
bKey = bKey ? false : true;
break;
case YAML_SEQUENCE_START_EVENT:
case YAML_SEQUENCE_END_EVENT:
throw std::runtime_error("ParseMap: Sequence event unsupported");
}
}
return res;
}
std::string YamlHelper::GetMapValue(MapYaml& mapYaml, const std::string& key, bool& bFound)
{
MapYaml::const_iterator iter = mapYaml.find(key);
if (iter == mapYaml.end() || iter->second.subMap != NULL)
{
bFound = false; // not found
return "";
}
std::string value = iter->second.value;
mapYaml.erase(iter);
bFound = true;
return value;
}
bool YamlHelper::GetSubMap(MapYaml** mapYaml, const std::string& key, const bool canBeNull/*=false*/)
{
MapYaml::const_iterator iter = (*mapYaml)->find(key);
if (iter == (*mapYaml)->end() || (!canBeNull && iter->second.subMap == NULL))
{
return false; // not found
}
*mapYaml = iter->second.subMap;
return true;
}
void YamlHelper::GetMapRemainder(std::string& mapName, MapYaml& mapYaml)
{
for (MapYaml::iterator iter = mapYaml.begin(); iter != mapYaml.end(); ++iter)
{
if (iter->second.subMap)
{
std::string subMapName(iter->first);
GetMapRemainder(subMapName, *iter->second.subMap);
delete iter->second.subMap;
}
else
{
const char* pKey = iter->first.c_str();
LogOutput("%s: Unknown key (%s)\n", mapName.c_str(), pKey);
LogFileOutput("%s: Unknown key (%s)\n", mapName.c_str(), pKey);
}
}
mapYaml.clear();
}
//
void YamlHelper::MakeAsciiToHexTable(void)
{
memset(m_AsciiToHex, -1, sizeof(m_AsciiToHex));
for (int i = '0'; i<= '9'; i++)
m_AsciiToHex[i] = i - '0';
for (int i = 'A'; i<= 'F'; i++)
m_AsciiToHex[i] = i - 'A' + 0xA;
for (int i = 'a'; i<= 'f'; i++)
m_AsciiToHex[i] = i - 'a' + 0xA;
}
UINT YamlHelper::LoadMemory(MapYaml& mapYaml, const LPBYTE pMemBase, const size_t kAddrSpaceSize, const UINT offset)
{
UINT bytes = 0;
for (MapYaml::iterator it = mapYaml.begin(); it != mapYaml.end(); ++it)
{
const char* pKey = it->first.c_str();
UINT addr = strtoul(pKey, NULL, 16);
if (addr >= (kAddrSpaceSize + offset))
throw std::runtime_error("Memory: line address too big: " + it->first);
LPBYTE pDst = (LPBYTE) (pMemBase + addr);
const LPBYTE pDstEnd = (LPBYTE) (pMemBase + kAddrSpaceSize + offset);
if (it->second.subMap)
throw std::runtime_error("Memory: unexpected sub-map");
const char* pValue = it->second.value.c_str();
size_t len = strlen(pValue);
if (len & 1)
throw std::runtime_error("Memory: hex data must be an even number of nibbles on line address: " + it->first);
for (UINT i = 0; i<len; i+=2)
{
if (pDst >= pDstEnd)
throw std::runtime_error("Memory: hex data overflowed address space on line address: " + it->first);
BYTE ah = m_AsciiToHex[ (BYTE)(*pValue++) ];
BYTE al = m_AsciiToHex[ (BYTE)(*pValue++) ];
if ((ah | al) & 0x80)
throw std::runtime_error("Memory: hex data contains illegal character on line address: " + it->first);
*pDst++ = (ah<<4) | al;
bytes++;
}
}
mapYaml.clear();
return bytes;
}
//-------------------------------------
INT YamlLoadHelper::LoadInt(const std::string key)
{
bool bFound;
std::string value = m_yamlHelper.GetMapValue(*m_pMapYaml, key, bFound);
if (value == "")
{
m_bDoGetMapRemainder = false;
throw std::runtime_error(m_currentMapName + ": Missing: " + key);
}
return strtol(value.c_str(), NULL, 0);
}
UINT YamlLoadHelper::LoadUint(const std::string key)
{
bool bFound;
std::string value = m_yamlHelper.GetMapValue(*m_pMapYaml, key, bFound);
if (value == "")
{
m_bDoGetMapRemainder = false;
throw std::runtime_error(m_currentMapName + ": Missing: " + key);
}
return strtoul(value.c_str(), NULL, 0);
}
UINT64 YamlLoadHelper::LoadUint64(const std::string key)
{
bool bFound;
std::string value = m_yamlHelper.GetMapValue(*m_pMapYaml, key, bFound);
if (value == "")
{
m_bDoGetMapRemainder = false;
throw std::runtime_error(m_currentMapName + ": Missing: " + key);
}
return _strtoui64(value.c_str(), NULL, 0);
}
bool YamlLoadHelper::LoadBool(const std::string key)
{
bool bFound;
std::string value = m_yamlHelper.GetMapValue(*m_pMapYaml, key, bFound);
if (value == "true")
return true;
else if (value == "false")
return false;
m_bDoGetMapRemainder = false;
throw std::runtime_error(m_currentMapName + ": Missing: " + key);
}
std::string YamlLoadHelper::LoadString_NoThrow(const std::string& key, bool& bFound)
{
std::string value = m_yamlHelper.GetMapValue(*m_pMapYaml, key, bFound);
return value;
}
std::string YamlLoadHelper::LoadString(const std::string& key)
{
bool bFound;
std::string value = LoadString_NoThrow(key, bFound);
if (!bFound)
{
m_bDoGetMapRemainder = false;
throw std::runtime_error(m_currentMapName + ": Missing: " + key);
}
return value;
}
float YamlLoadHelper::LoadFloat(const std::string& key)
{
bool bFound;
std::string value = m_yamlHelper.GetMapValue(*m_pMapYaml, key, bFound);
if (value == "")
{
m_bDoGetMapRemainder = false;
throw std::runtime_error(m_currentMapName + ": Missing: " + key);
}
#if (_MSC_VER >= 1900)
return strtof(value.c_str(), NULL); // MSVC++ 14.0 _MSC_VER == 1900 (Visual Studio 2015 version 14.0)
#else
return (float) strtod(value.c_str(), NULL); // NB. strtof() requires VS2015
#endif
}
double YamlLoadHelper::LoadDouble(const std::string& key)
{
bool bFound;
std::string value = m_yamlHelper.GetMapValue(*m_pMapYaml, key, bFound);
if (value == "")
{
m_bDoGetMapRemainder = false;
throw std::runtime_error(m_currentMapName + ": Missing: " + key);
}
return strtod(value.c_str(), NULL);
}
void YamlLoadHelper::LoadMemory(const LPBYTE pMemBase, const size_t size, const UINT offset/*=0*/)
{
m_yamlHelper.LoadMemory(*m_pMapYaml, pMemBase, size, offset);
}
void YamlLoadHelper::LoadMemory(std::vector<BYTE>& memory, const size_t size, const UINT offset/*=0*/)
{
memory.reserve(size); // expand (but don't shrink) vector's capacity (NB. vector's size doesn't change)
const UINT bytes = m_yamlHelper.LoadMemory(*m_pMapYaml, &memory[0], size, offset);
memory.resize(bytes); // resize so that vector contains /bytes/ elements - so that size() gives correct value.
}
//-------------------------------------
void YamlSaveHelper::Save(const char* format, ...)
{
fwrite(m_szIndent, 1, m_indent, m_hFile);
va_list vl;
va_start(vl, format);
vfprintf(m_hFile, format, vl);
va_end(vl);
}
void YamlSaveHelper::SaveInt(const char* key, int value)
{
Save("%s: %d\n", key, value);
}
void YamlSaveHelper::SaveUint(const char* key, UINT value)
{
Save("%s: %u\n", key, value);
}
void YamlSaveHelper::SaveHexUint4(const char* key, UINT value)
{
Save("%s: 0x%01X\n", key, value & 0xf);
}
void YamlSaveHelper::SaveHexUint8(const char* key, UINT value)
{
Save("%s: 0x%02X\n", key, value);
}
void YamlSaveHelper::SaveHexUint12(const char* key, UINT value)
{
Save("%s: 0x%03X\n", key, value);
}
void YamlSaveHelper::SaveHexUint16(const char* key, UINT value)
{
Save("%s: 0x%04X\n", key, value);
}
void YamlSaveHelper::SaveHexUint24(const char* key, UINT value)
{
Save("%s: 0x%06X\n", key, value);
}
void YamlSaveHelper::SaveHexUint32(const char* key, UINT value)
{
Save("%s: 0x%08X\n", key, value);
}
void YamlSaveHelper::SaveHexUint64(const char* key, UINT64 value)
{
Save("%s: 0x%016llX\n", key, value);
}
void YamlSaveHelper::SaveBool(const char* key, bool value)
{
Save("%s: %s\n", key, value ? "true" : "false");
}
void YamlSaveHelper::SaveString(const char* key, const char* value)
{
if (value[0] == 0)
value = "\"\"";
// libyaml supports UTF-8 and not accented ANSI characters (GH#838)
// . So convert ANSI to UTF-8, which is a 2-step process:
// 1) ANSI -> unicode
{
int size = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, value, -1, NULL, 0);
if (size == 0)
throw std::runtime_error("Unable to convert to unicode: " + std::string(value));
if (size > m_wcStrSize)
{
delete[] m_pWcStr;
m_pWcStr = new WCHAR[size];
m_wcStrSize = size;
}
int res = MultiByteToWideChar(CP_ACP, MB_ERR_INVALID_CHARS, value, -1, m_pWcStr, m_wcStrSize);
if (!res)
throw std::runtime_error("Unable to convert to unicode: " + std::string(value));
}
// 2) unicode -> UTF-8
{
// NB. WC_ERR_INVALID_CHARS only defined when WIN_VER >= 0x600 - but stdafx.h defines it as 0x500
int size = WideCharToMultiByte(CP_UTF8, 0/*WC_ERR_INVALID_CHARS*/, m_pWcStr, -1, NULL, 0, NULL, NULL);
if (size == 0)
throw std::runtime_error("Unable to convert to UTF-8: " + std::string(value));
if (size > m_mbStrSize)
{
delete[] m_pMbStr;
m_pMbStr = new char[size];
m_mbStrSize = size;
}
int res = WideCharToMultiByte(CP_UTF8, 0/*WC_ERR_INVALID_CHARS*/, m_pWcStr, -1, m_pMbStr, m_mbStrSize, NULL, NULL);
if (!res)
throw std::runtime_error("Unable to convert to UTF-8: " + std::string(value));
}
if (std::string(m_pMbStr).find("#") == std::string::npos)
Save("%s: %s\n", key, m_pMbStr);
else
Save("%s: \"%s\"\n", key, m_pMbStr); // Wrap the string in quotes when it contains the comment character "#" (GH#1066)
}
void YamlSaveHelper::SaveString(const char* key, const std::string & value)
{
SaveString(key, value.c_str());
}
void YamlSaveHelper::SaveFloat(const char* key, float value)
{
Save("%s: %f\n", key, value);
}
void YamlSaveHelper::SaveDouble(const char* key, double value)
{
Save("%s: %f\n", key, value);
}
// Pre: uMemSize must be multiple of 8
void YamlSaveHelper::SaveMemory(const LPBYTE pMemBase, const UINT uMemSize, const UINT offset/*=0*/)
{
if (uMemSize & 7)
throw std::runtime_error("Memory: size must be multiple of 8");
const UINT kIndent = m_indent;
const UINT kStride = 64;
const char szHex[] = "0123456789ABCDEF";
size_t lineSize = kIndent+6+2*kStride+2; // "AAAA: 00010203...3F\n\00" = 6+ 2*64 +2
char* const pLine = new char [lineSize];
for (DWORD addr = offset; addr < (uMemSize + offset); addr += kStride)
{
char* pDst = pLine;
for (UINT i=0; i<kIndent; i++)
*pDst++ = ' ';
*pDst++ = szHex[ (addr>>12)&0xf ];
*pDst++ = szHex[ (addr>>8)&0xf ];
*pDst++ = szHex[ (addr>>4)&0xf ];
*pDst++ = szHex[ addr&0xf ];
*pDst++ = ':';
*pDst++ = ' ';
LPBYTE pMem = pMemBase + addr;
for (UINT i=0; i<kStride; i+=8)
{
if (addr + i >= (uMemSize + offset)) // Support short final line (still multiple of 8 bytes)
{
lineSize = lineSize - 2*kStride + 2*i;
break;
}
BYTE d;
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
d = *pMem++; *pDst++ = szHex[d>>4]; *pDst++ = szHex[d&0xf];
}
*pDst++ = '\n';
*pDst = 0; // For debugger
fwrite(pLine, 1, lineSize-1, m_hFile); // -1 so don't write null terminator
}
delete [] pLine;
}
void YamlSaveHelper::FileHdr(UINT version)
{
fprintf(m_hFile, "%s:\n", SS_YAML_KEY_FILEHDR);
m_indent = 2;
SaveString(SS_YAML_KEY_TAG, SS_YAML_VALUE_AWSS);
SaveInt(SS_YAML_KEY_VERSION, version);
}
void YamlSaveHelper::UnitHdr(const std::string& type, UINT version)
{
fprintf(m_hFile, "\n%s:\n", SS_YAML_KEY_UNIT);
m_indent = 2;
SaveString(SS_YAML_KEY_TYPE, type.c_str());
SaveInt(SS_YAML_KEY_VERSION, version);
}
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