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KML.C
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/*
* kml.c
*
* This file is part of Emu42
*
* Copyright (C) 2004 Christoph Gießelink
*
*/
#include "pch.h"
#include "resource.h"
#include "Emu42.h"
#include "kml.h"
#define ROP_PSDPxax 0x00B8074A // ternary ROP
static VOID InitLex(LPCTSTR szScript);
static VOID CleanLex(VOID);
static VOID SkipWhite(UINT nMode);
static TokenId ParseToken(UINT nMode);
static DWORD ParseInteger(VOID);
static LPTSTR ParseString(VOID);
static TokenId Lex(UINT nMode);
static KmlLine* ParseLine(TokenId eCommand);
static KmlLine* IncludeLines(BOOL bInclude, LPCTSTR szFilename);
static KmlLine* ParseLines(BOOL bInclude);
static KmlBlock* ParseBlock(BOOL bInclude, TokenId eBlock);
static KmlBlock* IncludeBlocks(BOOL bInclude, LPCTSTR szFilename);
static KmlBlock* ParseBlocks(BOOL bInclude, BOOL bEndTokenEn);
static VOID FreeLines(KmlLine* pLine);
static VOID PressButton(UINT nId);
static VOID ReleaseButton(UINT nId);
static VOID PressButtonById(UINT nId);
static VOID ReleaseButtonById(UINT nId);
static LPCTSTR GetStringParam(KmlBlock* pBlock, TokenId eBlock, TokenId eCommand, UINT nParam);
static DWORD GetIntegerParam(KmlBlock* pBlock, TokenId eBlock, TokenId eCommand, UINT nParam);
static KmlLine* SkipLines(KmlLine* pLine, TokenId eCommand);
static KmlLine* If(KmlLine* pLine, BOOL bCondition);
static KmlLine* RunLine(KmlLine* pLine);
static KmlBlock* LoadKMLGlobal(LPCTSTR szFilename);
KmlBlock* pKml = NULL;
static KmlBlock* pVKey[256];
static BYTE byVKeyMap[256];
static KmlButton pButton[256];
KmlAnnunciator pAnnunciator[60];
static UINT nButtons = 0;
static UINT nScancodes = 0;
static UINT nAnnunciators = 0;
static BOOL bDebug = TRUE;
static WORD wKeybLocId = 0;
static BOOL bLocaleInc = FALSE; // no locale block content included
static UINT nLexLine;
static UINT nLexInteger;
static UINT nBlocksIncludeLevel;
static UINT nLinesIncludeLevel;
static DWORD nKMLFlags = 0;
static LPTSTR szLexString;
static LPCTSTR szText;
static LPCTSTR szLexDelim[] =
{
_T(" \t\n\r"), // valid whitespaces for LEX_BLOCK
_T(" \t\n\r"), // valid whitespaces for LEX_COMMAND
_T(" \t\r") // valid whitespaces for LEX_PARAM
};
static CONST KmlToken pLexToken[] =
{
{TOK_ANNUNCIATOR,000001,11,_T("Annunciator")},
{TOK_BACKGROUND, 000000,10,_T("Background")},
{TOK_IFPRESSED, 000001, 9,_T("IfPressed")},
{TOK_RESETFLAG, 000001, 9,_T("ResetFlag")},
{TOK_SCANCODE, 000001, 8,_T("Scancode")},
{TOK_HARDWARE, 000002, 8,_T("Hardware")},
{TOK_MENUITEM, 000001, 8,_T("MenuItem")},
{TOK_DISTANCE, 000001, 8,_T("Distance")},
{TOK_SYSITEM, 000001, 7,_T("SysItem")},
{TOK_SETFLAG, 000001, 7,_T("SetFlag")},
{TOK_RELEASE, 000001, 7,_T("Release")},
{TOK_VIRTUAL, 000000, 7,_T("Virtual")},
{TOK_INCLUDE, 000002, 7,_T("Include")},
{TOK_NOTFLAG, 000001, 7,_T("NotFlag")},
{TOK_MENUBAR, 000001, 7,_T("Menubar")}, // for PPC compatibility reasons
{TOK_GLOBAL, 000000, 6,_T("Global")},
{TOK_AUTHOR, 000002, 6,_T("Author")},
{TOK_BITMAP, 000002, 6,_T("Bitmap")},
{TOK_OFFSET, 000011, 6,_T("Offset")},
{TOK_ZOOMXY, 000011, 6,_T("Zoomxy")},
{TOK_BUTTON, 000001, 6,_T("Button")},
{TOK_IFFLAG, 000001, 6,_T("IfFlag")},
{TOK_ONDOWN, 000000, 6,_T("OnDown")},
{TOK_NOHOLD, 000000, 6,_T("NoHold")},
{TOK_LOCALE, 000001, 6,_T("Locale")},
{TOK_TOPBAR, 000001, 6,_T("Topbar")}, // for PPC compatibility reasons
{TOK_TITLE, 000002, 5,_T("Title")},
{TOK_OUTIN, 000011, 5,_T("OutIn")},
{TOK_PATCH, 000002, 5,_T("Patch")},
{TOK_PRINT, 000002, 5,_T("Print")},
{TOK_DEBUG, 000001, 5,_T("Debug")},
{TOK_COLOR, 001111, 5,_T("Color")},
{TOK_MODEL, 000002, 5,_T("Model")},
{TOK_CLASS, 000001, 5,_T("Class")},
{TOK_PRESS, 000001, 5,_T("Press")},
{TOK_DIGIT, 000000, 5,_T("Digit")},
{TOK_IFMEM, 000111, 5,_T("IfMem")},
{TOK_TYPE, 000001, 4,_T("Type")},
{TOK_SIZE, 000011, 4,_T("Size")},
{TOK_ZOOM, 000001, 4,_T("Zoom")},
{TOK_DOWN, 000011, 4,_T("Down")},
{TOK_ELSE, 000000, 4,_T("Else")},
{TOK_ONUP, 000000, 4,_T("OnUp")},
{TOK_MAP, 000011, 3,_T("Map")},
{TOK_ROM, 000002, 3,_T("Rom")},
{TOK_VGA, 000001, 3,_T("Vga")}, // for PPC compatibility reasons
{TOK_LCD, 000000, 3,_T("Lcd")},
{TOK_END, 000000, 3,_T("End")},
{TOK_NONE, 000000, 0,_T("")}
};
static CONST TokenId eIsGlobalBlock[] =
{
TOK_GLOBAL,
TOK_BACKGROUND,
TOK_LCD,
TOK_DIGIT,
TOK_ANNUNCIATOR,
TOK_BUTTON,
TOK_SCANCODE,
TOK_LOCALE
};
static CONST TokenId eIsBlock[] =
{
TOK_IFFLAG,
TOK_IFPRESSED,
TOK_IFMEM,
TOK_ONDOWN,
TOK_ONUP
};
static LPCTSTR szAnnunBitmap = NULL;
static BOOL bClicking = FALSE;
static UINT uButtonClicked = 0;
static BOOL bKeyPressed = FALSE; // no key pressed
static UINT uLastKeyPressed = 0; // var for last pressed key
//################
//#
//# Compilation Result
//#
//################
static UINT nLogLength = 0;
static LPTSTR szLog = NULL;
static VOID ClearLog()
{
nLogLength = 0;
if (szLog != NULL)
{
free(szLog);
szLog = NULL;
}
return;
}
static VOID AddToLog(LPCTSTR szString)
{
UINT nLength = lstrlen(szString) + 2; // CR+LF
if (szLog == NULL)
{
nLogLength = nLength + 1; // \0
szLog = (LPTSTR) malloc(nLogLength*sizeof(szLog[0]));
if (szLog==NULL)
{
nLogLength = 0;
return;
}
lstrcpy(szLog,szString);
}
else
{
LPTSTR szLogTmp = (LPTSTR) realloc(szLog,(nLogLength+nLength)*sizeof(szLog[0]));
if (szLogTmp == NULL)
{
ClearLog();
return;
}
szLog = szLogTmp;
lstrcpy(&szLog[nLogLength-1],szString);
nLogLength += nLength;
}
szLog[nLogLength-3] = _T('\r');
szLog[nLogLength-2] = _T('\n');
szLog[nLogLength-1] = 0;
return;
}
static VOID __cdecl PrintfToLog(LPCTSTR lpFormat, ...)
{
TCHAR cOutput[1024];
va_list arglist;
va_start(arglist,lpFormat);
wvsprintf(cOutput,lpFormat,arglist);
AddToLog(cOutput);
va_end(arglist);
return;
}
static INT_PTR CALLBACK KMLLogProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
LPCTSTR szString;
switch (message)
{
case WM_INITDIALOG:
// set OK
EnableWindow(GetDlgItem(hDlg,IDOK),(BOOL) lParam);
// set IDC_TITLE
szString = GetStringParam(pKml, TOK_GLOBAL, TOK_TITLE, 0);
if (szString == NULL) szString = _T("Untitled");
SetDlgItemText(hDlg,IDC_TITLE,szString);
// set IDC_AUTHOR
szString = GetStringParam(pKml, TOK_GLOBAL, TOK_AUTHOR, 0);
if (szString == NULL) szString = _T("<Unknown Author>");
SetDlgItemText(hDlg,IDC_AUTHOR,szString);
// set IDC_KMLLOG
szString = szLog;
if (szString == NULL) szString = _T("Memory Allocation Failure.");
SetDlgItemText(hDlg,IDC_KMLLOG,szString);
// set IDC_ALWAYSDISPLOG
CheckDlgButton(hDlg,IDC_ALWAYSDISPLOG,bAlwaysDisplayLog);
return TRUE;
case WM_COMMAND:
wParam = LOWORD(wParam);
if ((wParam==IDOK)||(wParam==IDCANCEL))
{
bAlwaysDisplayLog = IsDlgButtonChecked(hDlg, IDC_ALWAYSDISPLOG);
EndDialog(hDlg, wParam);
return TRUE;
}
break;
}
return FALSE;
}
BOOL DisplayKMLLog(BOOL bOkEnabled)
{
return IDOK == DialogBoxParam(hApp,
MAKEINTRESOURCE(IDD_KMLLOG),
hWnd,
(DLGPROC)KMLLogProc,
bOkEnabled);
}
//################
//#
//# Choose Script
//#
//################
typedef struct _KmlScript
{
LPTSTR szFilename;
LPTSTR szTitle;
DWORD nId;
struct _KmlScript* pNext;
} KmlScript;
static KmlScript* pKmlList = NULL;
static CHAR cKmlType;
static VOID DestroyKmlList(VOID)
{
KmlScript* pList;
while (pKmlList)
{
pList = pKmlList->pNext;
free(pKmlList->szFilename);
free(pKmlList->szTitle);
free(pKmlList);
pKmlList = pList;
}
return;
}
static VOID CreateKmlList(VOID)
{
HANDLE hFindFile;
WIN32_FIND_DATA pFindFileData;
UINT nKmlFiles;
_ASSERT(pKmlList == NULL); // KML file list must be empty
SetCurrentDirectory(szEmuDirectory);
hFindFile = FindFirstFile(_T("*.KML"),&pFindFileData);
SetCurrentDirectory(szCurrentDirectory);
if (hFindFile == INVALID_HANDLE_VALUE) return;
nKmlFiles = 0;
do
{
KmlScript* pScript;
KmlBlock* pBlock;
LPCTSTR szTitle;
pBlock = LoadKMLGlobal(pFindFileData.cFileName);
if (pBlock == NULL) continue;
// check for correct KML script platform
szTitle = GetStringParam(pBlock,TOK_GLOBAL,TOK_HARDWARE,0);
if (szTitle == NULL || lstrcmpi(_T(HARDWARE),szTitle) != 0)
{
FreeBlocks(pBlock);
continue;
}
// check for supported Model
szTitle = GetStringParam(pBlock,TOK_GLOBAL,TOK_MODEL,0);
// skip all scripts with invalid or different Model statement
if ( (szTitle == NULL)
|| (cKmlType && szTitle[0] != cKmlType)
|| !isModelValid(szTitle[0]))
{
FreeBlocks(pBlock);
continue;
}
VERIFY(pScript = (KmlScript*) malloc(sizeof(KmlScript)));
pScript->szFilename = DuplicateString(pFindFileData.cFileName);
szTitle = GetStringParam(pBlock,TOK_GLOBAL,TOK_TITLE,0);
if (szTitle == NULL) szTitle = pScript->szFilename;
pScript->szTitle = DuplicateString(szTitle);
FreeBlocks(pBlock);
pScript->nId = nKmlFiles;
pScript->pNext = pKmlList;
pKmlList = pScript;
nKmlFiles++;
} while (FindNextFile(hFindFile,&pFindFileData));
FindClose(hFindFile);
return;
};
static INT CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lp, LPARAM pData)
{
TCHAR szDir[MAX_PATH];
switch(uMsg)
{
case BFFM_INITIALIZED:
SendMessage(hwnd,BFFM_SETSELECTION,TRUE,pData);
break;
case BFFM_SELCHANGED:
// Set the status window to the currently selected path.
if (SHGetPathFromIDList((LPITEMIDLIST) lp,szDir))
{
SendMessage(hwnd,BFFM_SETSTATUSTEXT,0,(LPARAM) szDir);
}
break;
}
return 0;
}
static VOID BrowseFolder(HWND hDlg)
{
TCHAR szDir[MAX_PATH];
BROWSEINFO bi;
LPITEMIDLIST pidl;
LPMALLOC pMalloc;
// gets the shell's default allocator
if (SUCCEEDED(SHGetMalloc(&pMalloc)))
{
GetDlgItemText(hDlg,IDC_EMUDIR,szDir,ARRAYSIZEOF(szDir));
ZeroMemory(&bi,sizeof(bi));
bi.hwndOwner = hDlg;
bi.pidlRoot = NULL;
bi.pszDisplayName = NULL;
bi.lpszTitle = _T("Choose a folder:");
bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_STATUSTEXT;
bi.lpfn = BrowseCallbackProc;
bi.lParam = (LPARAM) szDir; // current setting
pidl = SHBrowseForFolder(&bi);
if (pidl)
{
if (SHGetPathFromIDList(pidl,szDir))
{
SetDlgItemText(hDlg,IDC_EMUDIR,szDir);
}
// free the PIDL allocated by SHBrowseForFolder
#if defined __cplusplus
pMalloc->Free(pidl);
#else
pMalloc->lpVtbl->Free(pMalloc,pidl);
#endif
}
// release the shell's allocator
#if defined __cplusplus
pMalloc->Release();
#else
pMalloc->lpVtbl->Release(pMalloc);
#endif
}
return;
}
static VOID UpdateScriptList(HWND hDlg)
{
HWND hList;
KmlScript* pList;
UINT nIndex,nEntries;
DWORD dwActId = (DWORD) CB_ERR;
// add all script titles to combo box
hList = GetDlgItem(hDlg,IDC_KMLSCRIPT);
SendMessage(hList, CB_RESETCONTENT, 0, 0);
for (nEntries = 0, pList = pKmlList; pList; pList = pList->pNext)
{
nIndex = (UINT) SendMessage(hList, CB_ADDSTRING, 0, (LPARAM)pList->szTitle);
SendMessage(hList, CB_SETITEMDATA, nIndex, (LPARAM) pList->nId);
// this has the same filename like the actual KML script
if (lstrcmpi(szCurrentKml, pList->szFilename) == 0)
dwActId = pList->nId;
nEntries++;
}
while (--nEntries > 0) // scan all combo box items
{
// found ID of actual KML script
if ((DWORD) SendMessage(hList, CB_GETITEMDATA, nEntries, 0) == dwActId)
break;
}
SendMessage(hList, CB_SETCURSEL, nEntries, 0);
return;
}
static INT_PTR CALLBACK ChooseKMLProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
HWND hList;
KmlScript* pList;
UINT nIndex;
switch (message)
{
case WM_INITDIALOG:
SetDlgItemText(hDlg,IDC_EMUDIR,szEmuDirectory);
UpdateScriptList(hDlg); // update combo box with script titles
return TRUE;
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDC_EMUDIRSEL:
BrowseFolder(hDlg); // select new folder for IDC_EMUDIR
// fall into IDC_UPDATE to search for KML files in new folder
case IDC_UPDATE:
DestroyKmlList();
GetDlgItemText(hDlg,IDC_EMUDIR,szEmuDirectory,ARRAYSIZEOF(szEmuDirectory));
CreateKmlList();
UpdateScriptList(hDlg); // update combo box with script titles
return TRUE;
case IDOK:
GetDlgItemText(hDlg,IDC_EMUDIR,szEmuDirectory,ARRAYSIZEOF(szEmuDirectory));
hList = GetDlgItem(hDlg,IDC_KMLSCRIPT);
nIndex = (UINT) SendMessage(hList, CB_GETCURSEL, 0, 0);
nIndex = (UINT) SendMessage(hList, CB_GETITEMDATA, nIndex, 0);
for (pList = pKmlList; pList; pList = pList->pNext)
{
if (pList->nId == nIndex)
{
lstrcpy(szCurrentKml, pList->szFilename);
EndDialog(hDlg, IDOK);
break;
}
}
return TRUE;
case IDCANCEL:
EndDialog(hDlg, IDCANCEL);
return TRUE;
}
}
return FALSE;
UNREFERENCED_PARAMETER(lParam);
}
BOOL DisplayChooseKml(CHAR cType)
{
INT_PTR nResult;
cKmlType = cType;
CreateKmlList();
nResult = DialogBox(hApp, MAKEINTRESOURCE(IDD_CHOOSEKML), hWnd, (DLGPROC)ChooseKMLProc);
DestroyKmlList();
return (nResult == IDOK);
}
//################
//#
//# KML File Mapping
//#
//################
static LPTSTR MapKMLFile(HANDLE hFile)
{
DWORD lBytesRead;
DWORD dwFileSizeLow;
DWORD dwFileSizeHigh;
LPTSTR lpBuf = NULL;
dwFileSizeLow = GetFileSize(hFile, &dwFileSizeHigh);
if (dwFileSizeHigh != 0)
{
AddToLog(_T("File is too large."));
goto fail;
}
lpBuf = (LPTSTR) malloc((dwFileSizeLow+1)*sizeof(lpBuf[0]));
if (lpBuf == NULL)
{
PrintfToLog(_T("Cannot allocate %i bytes."), (dwFileSizeLow+1)*sizeof(lpBuf[0]));
goto fail;
}
#if defined _UNICODE
{
LPSTR szTmp = (LPSTR) malloc(dwFileSizeLow+1);
if (szTmp == NULL)
{
free(lpBuf);
lpBuf = NULL;
PrintfToLog(_T("Cannot allocate %i bytes."), dwFileSizeLow+1);
goto fail;
}
ReadFile(hFile, szTmp, dwFileSizeLow, &lBytesRead, NULL);
MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, szTmp, lBytesRead, lpBuf, dwFileSizeLow+1);
free(szTmp);
}
#else
{
ReadFile(hFile, lpBuf, dwFileSizeLow, &lBytesRead, NULL);
}
#endif
lpBuf[dwFileSizeLow] = 0;
fail:
CloseHandle(hFile);
return lpBuf;
}
//################
//#
//# Script Parsing
//#
//################
static VOID InitLex(LPCTSTR szScript)
{
nLexLine = 1;
szText = szScript;
return;
}
static VOID CleanLex(VOID)
{
nLexLine = 0;
nLexInteger = 0;
szLexString = NULL;
szText = NULL;
return;
}
static BOOL IsGlobalBlock(TokenId eId)
{
UINT i;
for (i = 0; i < ARRAYSIZEOF(eIsGlobalBlock); ++i)
{
if (eId == eIsGlobalBlock[i]) return TRUE;
}
return FALSE;
}
static BOOL IsBlock(TokenId eId)
{
UINT i;
for (i = 0; i < ARRAYSIZEOF(eIsBlock); ++i)
{
if (eId == eIsBlock[i]) return TRUE;
}
return FALSE;
}
static LPCTSTR GetStringOf(TokenId eId)
{
UINT i;
for (i = 0; pLexToken[i].nLen; ++i)
{
if (pLexToken[i].eId == eId) return pLexToken[i].szName;
}
return _T("<Undefined>");
}
static VOID SkipWhite(UINT nMode)
{
LPCTSTR pcDelim;
while (*szText)
{
// search for delimiter
if ((pcDelim = _tcschr(szLexDelim[nMode],*szText)) != NULL)
{
_ASSERT(*pcDelim != 0); // no EOS
if (*pcDelim == _T('\n')) nLexLine++;
szText++;
continue;
}
if (*szText == _T('#')) // start of remark
{
// skip until LF or EOS
do szText++; while (*szText != _T('\n') && *szText != 0);
if (nMode != LEX_PARAM) continue;
}
break;
}
return;
}
static TokenId ParseToken(UINT nMode)
{
UINT i,j;
for (i = 0; szText[i]; i++) // search for delimeter
{
if (_tcschr(szLexDelim[nMode],szText[i]) != NULL)
break;
}
if (i == 0) return TOK_NONE;
// token length longer or equal than current command
for (j = 0; pLexToken[j].nLen >= i; ++j)
{
if (pLexToken[j].nLen == i) // token length has command length
{
if (_tcsncmp(pLexToken[j].szName,szText,i) == 0)
{
szText += i; // remove command from text
return pLexToken[j].eId; // return token Id
}
}
}
if (bDebug) // token not found
{
// allocate target string memory with token length
LPTSTR szToken = (LPTSTR) malloc((i+1) * sizeof(szToken[0]));
lstrcpyn(szToken,szText,i+1); // copy token text and append EOS
PrintfToLog(_T("%i: Undefined token %s"),nLexLine,szToken);
free(szToken);
}
return TOK_NONE;
}
static DWORD ParseInteger(VOID)
{
DWORD nNum = 0;
while (_istdigit(*szText))
{
nNum = nNum * 10 + ((*szText) - _T('0'));
szText++;
}
return nNum;
}
static LPTSTR ParseString(VOID)
{
LPTSTR lpszString;
UINT nLength;
UINT nBlock;
szText++; // skip leading '"'
nLength = 0;
nBlock = 256;
lpszString = (LPTSTR) malloc(nBlock * sizeof(lpszString[0]));
while (*szText != _T('"'))
{
if (nLength == nBlock - 1) // ran out of buffer space
{
nBlock += 256;
lpszString = (LPTSTR) realloc(lpszString,nBlock * sizeof(lpszString[0]));
}
if (*szText == _T('\\')) // escape char
{
// skip a '\' escape char before a quotation to
// decode the \" sequence as a quotation mark inside text
switch (szText[1])
{
case _T('\"'):
case _T('\\'):
++szText; // skip escape char '\'
break;
}
}
if (*szText == 0) // EOS found inside string
{
lpszString[nLength] = 0; // set EOS
PrintfToLog(_T("%i: Invalid string %s."), nLexLine, lpszString);
free(lpszString);
return NULL;
}
lpszString[nLength++] = *szText++; // save char
}
szText++; // skip ending '"'
lpszString[nLength] = 0; // set EOS
// release unnecessary allocated bytes
return (LPTSTR) realloc(lpszString,(nLength+1) * sizeof(lpszString[0]));
}
static TokenId Lex(UINT nMode)
{
_ASSERT(nMode >= LEX_BLOCK && nMode <= LEX_PARAM);
_ASSERT(nMode >= 0 && nMode < ARRAYSIZEOF(szLexDelim));
SkipWhite(nMode);
if (_istdigit(*szText))
{
nLexInteger = ParseInteger();
return TOK_INTEGER;
}
if (*szText == _T('"'))
{
szLexString = ParseString();
return TOK_STRING;
}
if (nMode == LEX_PARAM)
{
if (*szText == _T('\n')) // end of line
{
nLexLine++; // next line
szText++; // skip LF
return TOK_EOL;
}
if (*szText == 0) // end of file
{
return TOK_EOL;
}
}
return ParseToken(nMode);
}
static KmlLine* ParseLine(TokenId eCommand)
{
UINT i, j;
DWORD nParams;
TokenId eToken;
KmlLine* pLine;
for (i = 0; pLexToken[i].nLen; ++i)
{
if (pLexToken[i].eId == eCommand) break;
}
if (pLexToken[i].nLen == 0) return NULL;
pLine = (KmlLine*) calloc(1,sizeof(KmlLine));
pLine->eCommand = eCommand;
for (j = 0, nParams = pLexToken[i].nParams; TRUE; nParams >>= 3)
{
// check for parameter overflow
_ASSERT(j < ARRAYSIZEOF(pLine->nParam));
eToken = Lex(LEX_PARAM); // decode argument token
if ((nParams & 7) == TYPE_NONE)
{
if (eToken != TOK_EOL)
{
PrintfToLog(_T("%i: Too many parameters for %s (%i expected)."), nLexLine, pLexToken[i].szName, j);
break; // free memory of arguments
}
return pLine; // normal exit -> parsed line
}
if ((nParams & 7) == TYPE_INTEGER)
{
if (eToken != TOK_INTEGER)
{
PrintfToLog(_T("%i: Parameter %i of %s must be an integer."), nLexLine, j+1, pLexToken[i].szName);
break; // free memory of arguments
}
pLine->nParam[j++] = nLexInteger;
continue;
}
if ((nParams & 7) == TYPE_STRING)
{
if (eToken != TOK_STRING)
{
PrintfToLog(_T("%i: Parameter %i of %s must be a string."), nLexLine, j+1, pLexToken[i].szName);
break; // free memory of arguments
}
pLine->nParam[j++] = (DWORD_PTR) szLexString;
szLexString = NULL;
continue;
}
_ASSERT(FALSE); // unknown parameter type
break;
}
// if last argument was string, free it
if (eToken == TOK_STRING)
{
free(szLexString);
szLexString = NULL;
}
nParams = pLexToken[i].nParams; // get argument types of command
for (i = 0; i < j; ++i) // handle all scanned arguments
{
if ((nParams & 7) == TYPE_STRING) // string type
{
free((LPVOID)pLine->nParam[i]);
}
nParams >>= 3; // next argument type
}
free(pLine);
return NULL;
}
static KmlLine* IncludeLines(BOOL bInclude, LPCTSTR szFilename)
{
HANDLE hFile;
LPTSTR lpbyBuf;
UINT uOldLine;
LPCTSTR szOldText;
KmlLine* pLine;
SetCurrentDirectory(szEmuDirectory);
hFile = CreateFile(szFilename,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_FLAG_SEQUENTIAL_SCAN,
NULL);
SetCurrentDirectory(szCurrentDirectory);
if (hFile == INVALID_HANDLE_VALUE)
{
PrintfToLog(_T("Error while opening include file %s."), szFilename);
return NULL;
}
if ((lpbyBuf = MapKMLFile(hFile)) == NULL)
{
return NULL;
}
uOldLine = nLexLine;
szOldText = szText;
nLinesIncludeLevel++;
PrintfToLog(_T("l%i:%s %s"),
nLinesIncludeLevel,
(bInclude) ? _T("Including") : _T("Parsing"),
szFilename);
InitLex(lpbyBuf);
pLine = ParseLines(bInclude);
CleanLex();
nLinesIncludeLevel--;
nLexLine = uOldLine;
szText = szOldText;
free(lpbyBuf);
return pLine;
}
static KmlLine* ParseLines(BOOL bInclude)
{
KmlLine* pFirst = NULL;
KmlLine* pLine = NULL;
TokenId eToken;
UINT nLevel = 0;
while ((eToken = Lex(LEX_COMMAND)) != TOK_NONE)
{
if (IsGlobalBlock(eToken)) // check for block command
{
PrintfToLog(_T("%i: Invalid Command %s."), nLexLine, GetStringOf(eToken));
goto abort;
}
if (IsBlock(eToken)) nLevel++;
if (eToken == TOK_INCLUDE)
{
LPTSTR szFilename;
eToken = Lex(LEX_PARAM); // get include parameter in 'szLexString'
if (eToken != TOK_STRING) // not a string (token don't begin with ")
{
PrintfToLog(_T("%i: Include: string expected as parameter."), nLexLine);
goto abort;
}
szFilename = szLexString; // save pointer to allocated memory
szLexString = NULL;
eToken = Lex(LEX_PARAM); // decode argument
if (eToken != TOK_EOL)
{
free(szFilename); // free filename string
if (eToken == TOK_STRING)
{
free(szLexString);
szLexString = NULL;
}
PrintfToLog(_T("%i: Include: Too many parameters."), nLexLine);
goto abort;
}
if (pFirst)
{
pLine = pLine->pNext = IncludeLines(bInclude,szFilename);
}
else
{
pLine = pFirst = IncludeLines(bInclude,szFilename);
}
free(szFilename); // free filename string
if (pLine == NULL) // parsing error
goto abort;
while (pLine->pNext) pLine=pLine->pNext;
continue;
}
if (eToken == TOK_END)
{
if (nLevel)
{
nLevel--;
}
else
{
if (pFirst == NULL) // regular exit with empty block
{
// create an empty line
pLine = pFirst = (KmlLine*) calloc(1,sizeof(KmlLine));
pLine->eCommand = TOK_NONE;
}
if (pLine) pLine->pNext = NULL;
_ASSERT(szLexString == NULL);
return pFirst;
}
}
if (pFirst)
{
pLine = pLine->pNext = ParseLine(eToken);
}
else
{
pLine = pFirst = ParseLine(eToken);
}
if (pLine == NULL) // parsing error
goto abort;
}
if (nLinesIncludeLevel)
{
if (pLine) pLine->pNext = NULL;
_ASSERT(szLexString == NULL);
return pFirst;
}
abort:
if (pFirst) FreeLines(pFirst);
_ASSERT(szLexString == NULL);
return NULL;
}
static KmlBlock* ParseBlock(BOOL bInclude, TokenId eType)
{
UINT i;
KmlBlock* pBlock;
TokenId eToken;
nLinesIncludeLevel = 0;
VERIFY(pBlock = (KmlBlock *) calloc(1,sizeof(KmlBlock)));
pBlock->eType = eType;
for (i = 0; pLexToken[i].nLen; ++i) // search for token
{
if (pLexToken[i].eId == eType) break;
}
if (pLexToken[i].nParams) // has block command arguments
{
// block command parser accept only one integer argument
_ASSERT(pLexToken[i].nParams == TYPE_INTEGER);
eToken = Lex(LEX_PARAM); // decode argument
if (eToken != TOK_INTEGER)
{
if (eToken == TOK_STRING)