Usage: TextReplace FileToParse OutputFile TextToFind ReplacementText [-i]
Ex: TextReplace \"c:\\temp\\text.txt\" \"c:\\temp\\out.txt\" \"you and me\" \"you and I\"
Ex replace with empty string: TextReplace FileToParse OutputFile \"you and me\" \"\"
Case Sensitive (Default)/Insensitive [-i] Text Replacement.

Supports both multibyte-character and wide-character character sets.

Download TextReplace.exe 

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Binaries and source are freely distributable.

// TextReplace.cpp : Defines the entry point for the console application. // // Stdin text replacement utility #include "stdafx.h" #include <stdio.h> #include <conio.h> #include <Strsafe.h> #define NUM_ELEMENTS(x) (sizeof(x) / sizeof((x)[0])) // Mozy test void ArgDesc( char* ErrorText ) { _tprintf(TEXT("Usage: TextReplace FileToParse OutputFile TextToFind ReplacementText [-i]\n")); _tprintf(TEXT("\t\Ex: TextReplace \"c:\\temp\\text.txt\" \"c:\\temp\\out.txt\" \"you and me\" \"you and I\"\n")); _tprintf(TEXT("\t\Ex replace with empty string: TextReplace FileToParse OutputFile \"you and me\" \"\"\n")); _tprintf(TEXT("\t\Case Sensitive (Default)/Insensitive [-i] Text Replacement.\n")); if (ErrorText) _tprintf(TEXT("\n\n\%s\n",ErrorText)); } void ErrorExit(LPTSTR lpszFunction) { // Retrieve the system error message for the last-error code LPVOID lpMsgBuf; LPVOID lpDisplayBuf; DWORD dw = GetLastError(); FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dw, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) &lpMsgBuf, 0, NULL ); // Display the error message and exit the process lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT, (lstrlen((LPCTSTR)lpMsgBuf) + lstrlen((LPCTSTR)lpszFunction) + 40) * sizeof(TCHAR)); StringCchPrintf((LPTSTR)lpDisplayBuf, LocalSize(lpDisplayBuf) / sizeof(TCHAR), TEXT("%s failed with error %d: %s"), lpszFunction, dw, lpMsgBuf); _tprintf(TEXT("%s\n"), lpDisplayBuf); LocalFree(lpMsgBuf); LocalFree(lpDisplayBuf); ExitProcess(dw); } bool compareString(wchar_t* lPtr ,wchar_t* rPtr, int length ,bool insensitive ) { int count = 0; while(*lPtr && *rPtr) { if (insensitive) { if (_totupper(*lPtr) != _totupper(*rPtr)) return(false); } else if (*lPtr != *rPtr) return(false); count++; if (count == length) break; lPtr++; rPtr++; } return(true); } wchar_t *ToUnicode(char ptr[] ,UINT CodePage) { int retval; retval = MultiByteToWideChar(CodePage, MB_ERR_INVALID_CHARS, ptr, -1, NULL, 0); if (!SUCCEEDED(retval)) { ErrorExit(TEXT("ToUnicode")); return NULL; } LPWSTR lpWideCharStr = (LPWSTR)malloc((retval ) * sizeof(WCHAR)); if (lpWideCharStr == NULL) return NULL; retval = MultiByteToWideChar(CodePage, MB_ERR_INVALID_CHARS, ptr, -1, lpWideCharStr, retval); if (!SUCCEEDED(retval)) { ErrorExit(TEXT("ToUnicode")); free(lpWideCharStr); return NULL; } return(lpWideCharStr); } char *ToWideCharacter(wchar_t *ptr ,UINT CodePage) { int retval; retval = WideCharToMultiByte(CodePage, 0 , ptr, -1, NULL , 0, NULL, NULL); if (!SUCCEEDED(retval)) { ErrorExit(TEXT("ToWideCharacter")); return NULL; } char *lpWideCharStr = (LPSTR)malloc((retval) * sizeof(char)); if (lpWideCharStr == NULL) return NULL; retval = WideCharToMultiByte(CodePage, 0 , ptr , -1, lpWideCharStr , retval,NULL,NULL); if (!SUCCEEDED(retval)) { ErrorExit(TEXT("ToWideCharacter")); free(lpWideCharStr); return NULL; } return(lpWideCharStr); } int _tmain(int argc, _TCHAR* argv[]) { const int UTF8 = 0; const int Unicode = 1; const int UTF32 = 2; const int UTF7 = 3; const int MultiByte = 4; const char NL = '\n'; const int Max = 16384; char input[Max]; char output[Max]; int retval; char path_buffer[_MAX_PATH]; char drive[_MAX_DRIVE]; char dir[_MAX_DIR]; char fname[_MAX_FNAME]; char ext[_MAX_EXT]; wchar_t inputW[Max]; wchar_t outputW[Max]; wchar_t TexttoFind[Max]; wchar_t Replace[Max]; char exeFullpath[_MAX_PATH + 1]; char exepath[_MAX_PATH + 1]; char TextFile[_MAX_PATH + 1]; int inputIndex; int outputIndex; bool insensitive = false; UINT OperatingSystemCodePage = GetACP(); UINT ConsoleCodePage = GetConsoleOutputCP(); if (argc < 5) { ArgDesc( NULL ); return EXIT_FAILURE; } int inputLenght = _tcslen(argv[3]); if (inputLenght == 0) { ArgDesc(TEXT("\n\n\TextToFind length must be greater than zero.\n")); return EXIT_FAILURE; } wchar_t *buffer = ToUnicode((char *)argv[3], ConsoleCodePage); wcscpy(TexttoFind, buffer); free(buffer); //_tcscpy(TexttoFind,argv[1]); int argv2Length = _tcslen(argv[4]); buffer = ToUnicode((LPSTR) argv[4], ConsoleCodePage); wcscpy(Replace, buffer); free(buffer); //_tcscpy(Replace,argv[2]); if (argc == 6) { if (!_tcscmp(argv[5],TEXT("-i"))) insensitive = true; if (!_tcscmp(argv[5],TEXT("-I"))) insensitive = true; } //_tprintf(TEXT("\nUsage: %s <directory name>\n"), argv[0]); retval = GetModuleFileName(NULL, exeFullpath, NUM_ELEMENTS(exeFullpath)); if (!SUCCEEDED(retval)) { ErrorExit(TEXT("_tmain")); return(0); } // How to extract path from full path _tsplitpath(exeFullpath, drive, dir, fname, ext); _tcscpy(TextFile,drive); _tcscat(TextFile,dir); _tcscat(TextFile,TEXT("Text.txt")); //_tcscat(TextFile,TEXT("software.reg")); // Determine if file is ascii or unicode FILE *stream = fopen( argv[1] , TEXT("rb") ); if (!stream) { ArgDesc(TEXT("\n\n\Input file not found.\n")); return EXIT_FAILURE; } // Determine if file is ascii or unicode FILE *outStream = fopen( argv[2] , TEXT("wb") ); if (!outStream) { ArgDesc(TEXT("\n\n\Invalid output filename.\n")); return EXIT_FAILURE; } int enc = MultiByte; inputIndex = 0; outputIndex = 0; int numChars = 0; BOOL unicodeHeader = false; // determine if file unicode or multi-byte if ((numChars = fread(input,1,1,stream)) == 1) { if (input[0] == '\xff') { if ((numChars = fread(input,1,1,stream)) == 1) { if (input[0] == '\xfe') { unicodeHeader = true; enc = Unicode; } } } } if (enc != Unicode) { fseek(stream,0,SEEK_SET); } bool moreData = true; bool firstTime = true; bool endOfFile = false; while(!endOfFile) { int charIndex = 0; bool nlfound = false; while ((numChars = fread(&input[charIndex],1,1,stream)) == 1) { // not eating zeros after NL ******************************* if (input[charIndex] == NL) { nlfound = true; if (enc != Unicode) { charIndex++; break; } } // wait for second byte after unicode Line feed before breaking if (input[charIndex] == '\0' && nlfound == true) { charIndex++; break; } charIndex++; } if (numChars == 0) { endOfFile = true; } if (enc == Unicode) { input[charIndex] = '\0'; charIndex++; input[charIndex] = '\0'; charIndex++; memcpy(inputW,input,charIndex); } if (enc != Unicode) { input[charIndex] = '\0'; charIndex++; wchar_t *buffer = ToUnicode(&input[0] , ConsoleCodePage); wcscpy(inputW, buffer); free(buffer); } inputIndex = 0; outputIndex = 0; while(inputIndex < Max ) { // kludge since L'\0' didn't work if (inputW[inputIndex] == 0x0000) { break; } //wchar_t *buffer = ToUnicode(&input[inputIndex], ConsoleCodePage); //wcscpy(inputW,buffer); //free(buffer); if (compareString(&inputW[inputIndex],TexttoFind,inputLenght,insensitive )) { inputIndex += (inputLenght ); // skip over text to replace wcscpy(&outputW[outputIndex],Replace); outputIndex += argv2Length; } else { outputW[outputIndex] = inputW[inputIndex]; outputIndex += 1; inputIndex += 1; } } outputW[outputIndex] = L'\0'; outputIndex += 1; if (enc != Unicode) { char *bufferA = ToWideCharacter(outputW, ConsoleCodePage); fwrite(bufferA, 1, strlen(bufferA), outStream); free(bufferA); } else { if (unicodeHeader == true) { fwrite(L"\xfeff", 2, 1 , outStream); unicodeHeader = false; } int outLen = wcslen(outputW); fwrite(outputW, 2, outLen , outStream); } } fclose(stream); fclose(outStream); return 0; }