// Get the name of first volume. Return the leftmost digit of volume number. wchar* VolNameToFirstName(const wchar *VolName,wchar *FirstName,size_t MaxSize,bool NewNumbering) { if (FirstName!=VolName) wcsncpyz(FirstName,VolName,MaxSize); wchar *VolNumStart=FirstName; if (NewNumbering) { wchar N='1'; // From the rightmost digit of volume number to the left. for (wchar *ChPtr=GetVolNumPart(FirstName);ChPtr>FirstName;ChPtr--) if (IsDigit(*ChPtr)) { *ChPtr=N; // Set the rightmost digit to '1' and others to '0'. N='0'; } else if (N=='0') { VolNumStart=ChPtr+1; // Store the position of leftmost digit in volume number. break; } } else { // Old volume numbering scheme. Just set the extension to ".rar". SetExt(FirstName,L"rar",MaxSize); VolNumStart=GetExt(FirstName); } if (!FileExist(FirstName)) { // If the first volume, which name we just generated, is not exist, // check if volume with same name and any other extension is available. // It can help in case of *.exe or *.sfx first volume. wchar Mask[NM]; wcsncpyz(Mask,FirstName,ASIZE(Mask)); SetExt(Mask,L"*",ASIZE(Mask)); FindFile Find; Find.SetMask(Mask); FindData FD; while (Find.Next(&FD)) { Archive Arc; if (Arc.Open(FD.Name,0) && Arc.IsArchive(true) && Arc.FirstVolume) { wcsncpyz(FirstName,FD.Name,MaxSize); break; } } } return VolNumStart; }
char* VolNameToFirstName(const char *VolName,char *FirstName,bool NewNumbering) { if (FirstName!=VolName) strcpy(FirstName,VolName); char *VolNumStart=FirstName; if (NewNumbering) { int N='1'; for (char *ChPtr=GetVolNumPart(FirstName);ChPtr>FirstName;ChPtr--) if (isdigit(*ChPtr)) { *ChPtr=N; N='0'; } else if (N=='0') { VolNumStart=ChPtr+1; break; } } else { SetExt(FirstName,"rar"); VolNumStart=GetExt(FirstName); } if (!FileExist(FirstName)) { char Mask[NM]; strcpy(Mask,FirstName); SetExt(Mask,"*"); FindFile Find; Find.SetMask(Mask); struct FindData FD; while (Find.Next(&FD)) { Archive Arc; if (Arc.Open(FD.Name,FD.NameW) && Arc.IsArchive(true) && !Arc.NotFirstVolume) { strcpy(FirstName,FD.Name); break; } } } return(VolNumStart); }