LazFileUtils

function CompareFilenames(const Filename1, Filename2: string): integer; overload; function CompareFilenamesIgnoreCase(const Filename1, Filename2: string): integer; function CompareFileExt(const Filename, Ext: string;

                       CaseSensitive: boolean): integer; overload;

function CompareFileExt(const Filename, Ext: string): integer; overload;

function CompareFilenameStarts(const Filename1, Filename2: string): integer; function CompareFilenames(Filename1: PChar; Len1: integer;

 Filename2: PChar; Len2: integer): integer; overload;

function CompareFilenamesP(Filename1, Filename2: PChar;

 IgnoreCase: boolean = false // false = use default
 ): integer;

function DirPathExists(DirectoryName: string): boolean; function DirectoryIsWritable(const DirectoryName: string): boolean; function ExtractFileNameOnly(const AFilename: string): string; function FilenameIsAbsolute(const TheFilename: string):boolean; function FilenameIsWinAbsolute(const TheFilename: string):boolean; function FilenameIsUnixAbsolute(const TheFilename: string):boolean; function ForceDirectory(DirectoryName: string): boolean; procedure CheckIfFileIsExecutable(const AFilename: string); procedure CheckIfFileIsSymlink(const AFilename: string); function FileIsExecutable(const AFilename: string): boolean; function FileIsSymlink(const AFilename: string): boolean; function FileIsHardLink(const AFilename: string): boolean; function FileIsReadable(const AFilename: string): boolean; function FileIsWritable(const AFilename: string): boolean; function FileIsText(const AFilename: string): boolean; function FileIsText(const AFilename: string; out FileReadable: boolean): boolean; function FilenameIsTrimmed(const TheFilename: string): boolean; function FilenameIsTrimmed(StartPos: PChar; NameLen: integer): boolean; function TrimFilename(const AFilename: string): string; function ResolveDots(const AFilename: string): string; Procedure ForcePathDelims(Var FileName: string); Function GetForcedPathDelims(Const FileName: string): String; function CleanAndExpandFilename(const Filename: string): string; // empty string returns current directory function CleanAndExpandDirectory(const Filename: string): string; // empty string returns current directory function TrimAndExpandFilename(const Filename: string; const BaseDir: string = ): string; // empty string returns empty string function TrimAndExpandDirectory(const Filename: string; const BaseDir: string = ): string; // empty string returns empty string function TryCreateRelativePath(const Dest, Source: String; UsePointDirectory: boolean;

                              AlwaysRequireSharedBaseFolder: Boolean; out RelPath: String): Boolean;

function CreateRelativePath(const Filename, BaseDirectory: string;

                           UsePointDirectory: boolean = false; AlwaysRequireSharedBaseFolder: Boolean = True): string;

function FileIsInPath(const Filename, Path: string): boolean; function AppendPathDelim(const Path: string): string; function ChompPathDelim(const Path: string): string;

// search paths function CreateAbsoluteSearchPath(const SearchPath, BaseDirectory: string): string; function CreateRelativeSearchPath(const SearchPath, BaseDirectory: string): string; function MinimizeSearchPath(const SearchPath: string): string; function FindPathInSearchPath(APath: PChar; APathLen: integer;

                             SearchPath: PChar; SearchPathLen: integer): PChar; overload;

function FindPathInSearchPath(const APath, SearchPath: string): integer; overload;

// file operations function FileExistsUTF8(const Filename: string): boolean; function FileAgeUTF8(const FileName: string): Longint; function DirectoryExistsUTF8(const Directory: string): Boolean; function ExpandFileNameUTF8(const FileName: string; {const} BaseDir: string = ): string; function FindFirstUTF8(const Path: string; Attr: Longint; out Rslt: TSearchRec): Longint; function FindNextUTF8(var Rslt: TSearchRec): Longint; procedure FindCloseUTF8(var F: TSearchrec); inline; function FileSetDateUTF8(const FileName: String; Age: Longint): Longint; function FileGetAttrUTF8(const FileName: String): Longint; function FileSetAttrUTF8(const Filename: String; Attr: longint): Longint; function DeleteFileUTF8(const FileName: String): Boolean; function RenameFileUTF8(const OldName, NewName: String): Boolean; function FileSearchUTF8(const Name, DirList : String; ImplicitCurrentDir : Boolean = True): String; function FileIsReadOnlyUTF8(const FileName: String): Boolean; function GetCurrentDirUTF8: String; function SetCurrentDirUTF8(const NewDir: String): Boolean; function CreateDirUTF8(const NewDir: String): Boolean; function RemoveDirUTF8(const Dir: String): Boolean; function ForceDirectoriesUTF8(const Dir: string): Boolean;

function FileOpenUTF8(Const FileName : string; Mode : Integer) : THandle; function FileCreateUTF8(Const FileName : string) : THandle; overload; function FileCreateUTF8(Const FileName : string; Rights: Cardinal) : THandle; overload; Function FileCreateUtf8(Const FileName : String; ShareMode : Integer; Rights : Cardinal) : THandle; overload;

function FileSizeUtf8(const Filename: string): int64; function GetFileDescription(const AFilename: string): string; function ReadAllLinks(const Filename: string;

                {%H-}ExceptionOnError: boolean): string; // if a link is broken returns 

function TryReadAllLinks(const Filename: string): string; // if a link is broken returns Filename function GetShellLinkTarget(const FileName: string): string;

// for debugging function DbgSFileAttr(Attr: LongInt): String;

// Getting FileNameOnError

 TPhysicalFilenameOnError = (pfeException,pfeEmpty,pfeOriginal);

// Getting file name except for Unix function GetPhysicalFilename(const Filename: string;

       OnError: TPhysicalFilenameOnError): string;

// for Unix function GetUnixPhysicalFilename(const Filename: string;

                     ExceptionOnError: boolean): string; // if a link is broken returns 

// Getting paths function GetAppConfigDirUTF8(Global: Boolean; Create: boolean = false): string; function GetAppConfigFileUTF8(Global: Boolean; SubDir: boolean = false;

 CreateDir: boolean = false): string;

function GetTempFileNameUTF8(const Dir, Prefix: String): String;

// UNC paths function IsUNCPath(const {%H-}Path: String): Boolean; function ExtractUNCVolume(const {%H-}Path: String): String; function ExtractFileRoot(FileName: String): String;

// darwin paths function GetDarwinSystemFilename(Filename: string): string; function GetDarwinNormalizedFilename(Filename: string; nForm:Integer=2): string;

// windows paths function SHGetFolderPathUTF8(ID : Integer) : String;

// Commandline Parameters procedure SplitCmdLineParams(const Params: string; ParamList: TStrings;

                            ReadBackslash: boolean = false);

function StrToCmdLineParam(const Param: string): string; function MergeCmdLineParams(ParamList: TStrings): string;

// Cache

 TInvalidateFileStateCacheEvent = procedure(const Filename: string);

var

 OnInvalidateFileStateCache: TInvalidateFileStateCacheEvent = nil;

procedure InvalidateFileStateCache(const Filename: string = ); inline;