diff options
Diffstat (limited to 'lib/pure/ospaths.nim')
| -rw-r--r-- | lib/pure/ospaths.nim | 716 |
1 files changed, 12 insertions, 704 deletions
diff --git a/lib/pure/ospaths.nim b/lib/pure/ospaths.nim index 7f7f9a425..34d452fd2 100644 --- a/lib/pure/ospaths.nim +++ b/lib/pure/ospaths.nim @@ -7,707 +7,15 @@ # distribution, for details about the copyright. # -# Forwarded by the ``os`` module but a module in its own right for NimScript -# support. - -include "system/inclrtl" - -import strutils - -type - ReadEnvEffect* = object of ReadIOEffect ## effect that denotes a read - ## from an environment variable - WriteEnvEffect* = object of WriteIOEffect ## effect that denotes a write - ## to an environment variable - - ReadDirEffect* = object of ReadIOEffect ## effect that denotes a read - ## operation from the directory - ## structure - WriteDirEffect* = object of WriteIOEffect ## effect that denotes a write - ## operation to - ## the directory structure - - OSErrorCode* = distinct int32 ## Specifies an OS Error Code. - -const - doslikeFileSystem* = defined(windows) or defined(OS2) or defined(DOS) - -when defined(Nimdoc): # only for proper documentation: - const - CurDir* = '.' - ## The constant string used by the operating system to refer to the - ## current directory. - ## - ## For example: '.' for POSIX or ':' for the classic Macintosh. - - ParDir* = ".." - ## The constant string used by the operating system to refer to the - ## parent directory. - ## - ## For example: ".." for POSIX or "::" for the classic Macintosh. - - DirSep* = '/' - ## The character used by the operating system to separate pathname - ## components, for example, '/' for POSIX or ':' for the classic - ## Macintosh. - - AltSep* = '/' - ## An alternative character used by the operating system to separate - ## pathname components, or the same as `DirSep` if only one separator - ## character exists. This is set to '/' on Windows systems - ## where `DirSep` is a backslash. - - PathSep* = ':' - ## The character conventionally used by the operating system to separate - ## search patch components (as in PATH), such as ':' for POSIX - ## or ';' for Windows. - - FileSystemCaseSensitive* = true - ## true if the file system is case sensitive, false otherwise. Used by - ## `cmpPaths` to compare filenames properly. - - ExeExt* = "" - ## The file extension of native executables. For example: - ## "" for POSIX, "exe" on Windows. - - ScriptExt* = "" - ## The file extension of a script file. For example: "" for POSIX, - ## "bat" on Windows. - - DynlibFormat* = "lib$1.so" - ## The format string to turn a filename into a `DLL`:idx: file (also - ## called `shared object`:idx: on some operating systems). - -elif defined(macos): - const - CurDir* = ':' - ParDir* = "::" - DirSep* = ':' - AltSep* = Dirsep - PathSep* = ',' - FileSystemCaseSensitive* = false - ExeExt* = "" - ScriptExt* = "" - DynlibFormat* = "$1.dylib" - - # MacOS paths - # =========== - # MacOS directory separator is a colon ":" which is the only character not - # allowed in filenames. - # - # A path containing no colon or which begins with a colon is a partial - # path. - # E.g. ":kalle:petter" ":kalle" "kalle" - # - # All other paths are full (absolute) paths. E.g. "HD:kalle:" "HD:" - # When generating paths, one is safe if one ensures that all partial paths - # begin with a colon, and all full paths end with a colon. - # In full paths the first name (e g HD above) is the name of a mounted - # volume. - # These names are not unique, because, for instance, two diskettes with the - # same names could be inserted. This means that paths on MacOS are not - # waterproof. In case of equal names the first volume found will do. - # Two colons "::" are the relative path to the parent. Three is to the - # grandparent etc. -elif doslikeFileSystem: - const - CurDir* = '.' - ParDir* = ".." - DirSep* = '\\' # seperator within paths - AltSep* = '/' - PathSep* = ';' # seperator between paths - FileSystemCaseSensitive* = false - ExeExt* = "exe" - ScriptExt* = "bat" - DynlibFormat* = "$1.dll" -elif defined(PalmOS) or defined(MorphOS): - const - DirSep* = '/' - AltSep* = Dirsep - PathSep* = ';' - ParDir* = ".." - FileSystemCaseSensitive* = false - ExeExt* = "" - ScriptExt* = "" - DynlibFormat* = "$1.prc" -elif defined(RISCOS): - const - DirSep* = '.' - AltSep* = '.' - ParDir* = ".." # is this correct? - PathSep* = ',' - FileSystemCaseSensitive* = true - ExeExt* = "" - ScriptExt* = "" - DynlibFormat* = "lib$1.so" -else: # UNIX-like operating system - const - CurDir* = '.' - ParDir* = ".." - DirSep* = '/' - AltSep* = DirSep - PathSep* = ':' - FileSystemCaseSensitive* = when defined(macosx): false else: true - ExeExt* = "" - ScriptExt* = "" - DynlibFormat* = when defined(macosx): "lib$1.dylib" else: "lib$1.so" - -const - ExtSep* = '.' - ## The character which separates the base filename from the extension; - ## for example, the '.' in ``os.nim``. - -proc normalizePathEnd(path: var string, trailingSep = false) = - ## ensures ``path`` has exactly 0 or 1 trailing `DirSep`, depending on - ## ``trailingSep``, and taking care of edge cases: it preservers whether - ## a path is absolute or relative, and makes sure trailing sep is `DirSep`, - ## not `AltSep`. - if path.len == 0: return - var i = path.len - while i >= 1 and path[i-1] in {DirSep, AltSep}: dec(i) - if trailingSep: - # foo// => foo - path.setLen(i) - # foo => foo/ - path.add DirSep - elif i>0: - # foo// => foo - path.setLen(i) - else: - # // => / (empty case was already taken care of) - path = $DirSep - -proc normalizePathEnd(path: string, trailingSep = false): string = - result = path - result.normalizePathEnd(trailingSep) - -proc joinPath*(head, tail: string): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## Joins two directory names to one. - ## - ## For example on Unix: - ## - ## .. code-block:: nim - ## joinPath("usr", "lib") - ## - ## results in: - ## - ## .. code-block:: nim - ## "usr/lib" - ## - ## If head is the empty string, tail is returned. If tail is the empty - ## string, head is returned with a trailing path separator. If tail starts - ## with a path separator it will be removed when concatenated to head. Other - ## path separators not located on boundaries won't be modified. More - ## examples on Unix: - ## - ## .. code-block:: nim - ## assert joinPath("usr", "") == "usr/" - ## assert joinPath("", "lib") == "lib" - ## assert joinPath("", "/lib") == "/lib" - ## assert joinPath("usr/", "/lib") == "usr/lib" - if len(head) == 0: - result = tail - elif head[len(head)-1] in {DirSep, AltSep}: - if tail.len > 0 and tail[0] in {DirSep, AltSep}: - result = head & substr(tail, 1) - else: - result = head & tail - else: - if tail.len > 0 and tail[0] in {DirSep, AltSep}: - result = head & tail - else: - result = head & DirSep & tail - -proc joinPath*(parts: varargs[string]): string {.noSideEffect, - rtl, extern: "nos$1OpenArray".} = - ## The same as `joinPath(head, tail)`, but works with any number of - ## directory parts. You need to pass at least one element or the proc - ## will assert in debug builds and crash on release builds. - result = parts[0] - for i in 1..high(parts): - result = joinPath(result, parts[i]) - -proc `/` * (head, tail: string): string {.noSideEffect.} = - ## The same as ``joinPath(head, tail)`` - ## - ## Here are some examples for Unix: - ## - ## .. code-block:: nim - ## assert "usr" / "" == "usr/" - ## assert "" / "lib" == "lib" - ## assert "" / "/lib" == "/lib" - ## assert "usr/" / "/lib" == "usr/lib" - return joinPath(head, tail) - -proc splitPath*(path: string): tuple[head, tail: string] {. - noSideEffect, rtl, extern: "nos$1".} = - ## Splits a directory into (head, tail), so that - ## ``head / tail == path`` (except for edge cases like "/usr"). - ## - ## Examples: - ## - ## .. code-block:: nim - ## splitPath("usr/local/bin") -> ("usr/local", "bin") - ## splitPath("usr/local/bin/") -> ("usr/local/bin", "") - ## splitPath("bin") -> ("", "bin") - ## splitPath("/bin") -> ("", "bin") - ## splitPath("") -> ("", "") - var sepPos = -1 - for i in countdown(len(path)-1, 0): - if path[i] in {DirSep, AltSep}: - sepPos = i - break - if sepPos >= 0: - result.head = substr(path, 0, sepPos-1) - result.tail = substr(path, sepPos+1) - else: - result.head = "" - result.tail = path - -proc parentDirPos(path: string): int = - var q = 1 - if len(path) >= 1 and path[len(path)-1] in {DirSep, AltSep}: q = 2 - for i in countdown(len(path)-q, 0): - if path[i] in {DirSep, AltSep}: return i - result = -1 - -proc parentDir*(path: string): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## Returns the parent directory of `path`. - ## - ## This is the same as ``splitPath(path).head`` when ``path`` doesn't end - ## in a dir separator. - ## The remainder can be obtained with ``lastPathPart(path)`` - runnableExamples: - doAssert parentDir("") == "" - when defined(posix): - doAssert parentDir("/usr/local/bin") == "/usr/local" - doAssert parentDir("foo/bar/") == "foo" - - let sepPos = parentDirPos(path) - if sepPos >= 0: - result = substr(path, 0, sepPos-1) - else: - result = "" - -proc tailDir*(path: string): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## Returns the tail part of `path`.. - ## - ## | Example: ``tailDir("/usr/local/bin") == "local/bin"``. - ## | Example: ``tailDir("usr/local/bin/") == "local/bin"``. - ## | Example: ``tailDir("bin") == ""``. - var q = 1 - if len(path) >= 1 and path[len(path)-1] in {DirSep, AltSep}: q = 2 - for i in 0..len(path)-q: - if path[i] in {DirSep, AltSep}: - return substr(path, i+1) - result = "" - -proc isRootDir*(path: string): bool {. - noSideEffect, rtl, extern: "nos$1".} = - ## Checks whether a given `path` is a root directory - result = parentDirPos(path) < 0 - -iterator parentDirs*(path: string, fromRoot=false, inclusive=true): string = - ## Walks over all parent directories of a given `path` - ## - ## If `fromRoot` is set, the traversal will start from the file system root - ## diretory. If `inclusive` is set, the original argument will be included - ## in the traversal. - ## - ## Relative paths won't be expanded by this proc. Instead, it will traverse - ## only the directories appearing in the relative path. - if not fromRoot: - var current = path - if inclusive: yield path - while true: - if current.isRootDir: break - current = current.parentDir - yield current - else: - for i in countup(0, path.len - 2): # ignore the last / - # deal with non-normalized paths such as /foo//bar//baz - if path[i] in {DirSep, AltSep} and - (i == 0 or path[i-1] notin {DirSep, AltSep}): - yield path.substr(0, i) - - if inclusive: yield path - -proc `/../`*(head, tail: string): string {.noSideEffect.} = - ## The same as ``parentDir(head) / tail`` unless there is no parent - ## directory. Then ``head / tail`` is performed instead. - let sepPos = parentDirPos(head) - if sepPos >= 0: - result = substr(head, 0, sepPos-1) / tail - else: - result = head / tail - -proc normExt(ext: string): string = - if ext == "" or ext[0] == ExtSep: result = ext # no copy needed here - else: result = ExtSep & ext - -proc searchExtPos*(path: string): int = - ## Returns index of the '.' char in `path` if it signifies the beginning - ## of extension. Returns -1 otherwise. - # BUGFIX: do not search until 0! .DS_Store is no file extension! - result = -1 - for i in countdown(len(path)-1, 1): - if path[i] == ExtSep: - result = i - break - elif path[i] in {DirSep, AltSep}: - break # do not skip over path - -proc splitFile*(path: string): tuple[dir, name, ext: string] {. - noSideEffect, rtl, extern: "nos$1".} = - ## Splits a filename into (dir, filename, extension). - ## `dir` does not end in `DirSep`. - ## `extension` includes the leading dot. - ## - ## Example: - ## - ## .. code-block:: nim - ## var (dir, name, ext) = splitFile("usr/local/nimc.html") - ## assert dir == "usr/local" - ## assert name == "nimc" - ## assert ext == ".html" - ## - ## If `path` has no extension, `ext` is the empty string. - ## If `path` has no directory component, `dir` is the empty string. - ## If `path` has no filename component, `name` and `ext` are empty strings. - if path.len == 0 or path[path.len-1] in {DirSep, AltSep}: - result = (path, "", "") - else: - var sepPos = -1 - var dotPos = path.len - for i in countdown(len(path)-1, 0): - if path[i] == ExtSep: - if dotPos == path.len and i > 0 and - path[i-1] notin {DirSep, AltSep}: dotPos = i - elif path[i] in {DirSep, AltSep}: - sepPos = i - break - result.dir = substr(path, 0, sepPos-1) - result.name = substr(path, sepPos+1, dotPos-1) - result.ext = substr(path, dotPos) - -proc extractFilename*(path: string): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## Extracts the filename of a given `path`. This is the same as - ## ``name & ext`` from ``splitFile(path)``. See also ``lastPathPart``. - runnableExamples: - when defined(posix): - doAssert extractFilename("foo/bar/") == "" - doAssert extractFilename("foo/bar") == "bar" - if path.len == 0 or path[path.len-1] in {DirSep, AltSep}: - result = "" - else: - result = splitPath(path).tail - -proc lastPathPart*(path: string): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## like ``extractFilename``, but ignores trailing dir separator; aka: `baseName`:idx: - ## in some other languages. - runnableExamples: - when defined(posix): - doAssert lastPathPart("foo/bar/") == "bar" - let path = path.normalizePathEnd(trailingSep = false) - result = extractFilename(path) - -proc changeFileExt*(filename, ext: string): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## Changes the file extension to `ext`. - ## - ## If the `filename` has no extension, `ext` will be added. - ## If `ext` == "" then any extension is removed. - ## `Ext` should be given without the leading '.', because some - ## filesystems may use a different character. (Although I know - ## of none such beast.) - var extPos = searchExtPos(filename) - if extPos < 0: result = filename & normExt(ext) - else: result = substr(filename, 0, extPos-1) & normExt(ext) - -proc addFileExt*(filename, ext: string): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## Adds the file extension `ext` to `filename`, unless - ## `filename` already has an extension. - ## - ## `Ext` should be given without the leading '.', because some - ## filesystems may use a different character. - ## (Although I know of none such beast.) - var extPos = searchExtPos(filename) - if extPos < 0: result = filename & normExt(ext) - else: result = filename - -proc cmpPaths*(pathA, pathB: string): int {. - noSideEffect, rtl, extern: "nos$1".} = - ## Compares two paths. - ## - ## On a case-sensitive filesystem this is done - ## case-sensitively otherwise case-insensitively. Returns: - ## - ## | 0 iff pathA == pathB - ## | < 0 iff pathA < pathB - ## | > 0 iff pathA > pathB - runnableExamples: - when defined(macosx): - doAssert cmpPaths("foo", "Foo") == 0 - elif defined(posix): - doAssert cmpPaths("foo", "Foo") > 0 - if FileSystemCaseSensitive: - result = cmp(pathA, pathB) - else: - when defined(nimscript): - result = cmpic(pathA, pathB) - elif defined(nimdoc): discard - else: - result = cmpIgnoreCase(pathA, pathB) - -proc isAbsolute*(path: string): bool {.rtl, noSideEffect, extern: "nos$1".} = - ## Checks whether a given `path` is absolute. - ## - ## On Windows, network paths are considered absolute too. - runnableExamples: - doAssert(not "".isAbsolute) - doAssert(not ".".isAbsolute) - when defined(posix): - doAssert "/".isAbsolute - doAssert(not "a/".isAbsolute) - - if len(path) == 0: return false - - when doslikeFileSystem: - var len = len(path) - result = (path[0] in {'/', '\\'}) or - (len > 1 and path[0] in {'a'..'z', 'A'..'Z'} and path[1] == ':') - elif defined(macos): - # according to https://perldoc.perl.org/File/Spec/Mac.html `:a` is a relative path - result = path[0] != ':' - elif defined(RISCOS): - result = path[0] == '$' - elif defined(posix): - result = path[0] == '/' - -proc unixToNativePath*(path: string, drive=""): string {. - noSideEffect, rtl, extern: "nos$1".} = - ## Converts an UNIX-like path to a native one. - ## - ## On an UNIX system this does nothing. Else it converts - ## '/', '.', '..' to the appropriate things. - ## - ## On systems with a concept of "drives", `drive` is used to determine - ## which drive label to use during absolute path conversion. - ## `drive` defaults to the drive of the current working directory, and is - ## ignored on systems that do not have a concept of "drives". - - when defined(unix): - result = path - else: - if path.len == 0: - return "" - - var start: int - if path[0] == '/': - # an absolute path - when doslikeFileSystem: - if drive != "": - result = drive & ":" & DirSep - else: - result = $DirSep - elif defined(macos): - result = "" # must not start with ':' - else: - result = $DirSep - start = 1 - elif path[0] == '.' and (path.len == 1 or path[1] == '/'): - # current directory - result = $CurDir - start = when doslikeFileSystem: 1 else: 2 - else: - result = "" - start = 0 - - var i = start - while i < len(path): # ../../../ --> :::: - if i+2 < path.len and path[i] == '.' and path[i+1] == '.' and path[i+2] == '/': - # parent directory - when defined(macos): - if result[high(result)] == ':': - add result, ':' - else: - add result, ParDir - else: - add result, ParDir & DirSep - inc(i, 3) - elif path[i] == '/': - add result, DirSep - inc(i) - else: - add result, path[i] - inc(i) - -include "includes/oserr" -when not defined(nimscript): - include "includes/osenv" - -proc getHomeDir*(): string {.rtl, extern: "nos$1", - tags: [ReadEnvEffect, ReadIOEffect].} = - ## Returns the home directory of the current user. - ## - ## This proc is wrapped by the expandTilde proc for the convenience of - ## processing paths coming from user configuration files. - when defined(windows): return string(getEnv("USERPROFILE")) & "\\" - else: return string(getEnv("HOME")) & "/" - -proc getConfigDir*(): string {.rtl, extern: "nos$1", - tags: [ReadEnvEffect, ReadIOEffect].} = - ## Returns the config directory of the current user for applications. - ## - ## On non-Windows OSs, this proc conforms to the XDG Base Directory - ## spec. Thus, this proc returns the value of the XDG_CONFIG_HOME environment - ## variable if it is set, and returns the default configuration directory, - ## "~/.config/", otherwise. - ## - ## An OS-dependent trailing slash is always present at the end of the - ## returned string; `\` on Windows and `/` on all other OSs. - when defined(windows): - result = getEnv("APPDATA").string - else: - result = getEnv("XDG_CONFIG_HOME", getEnv("HOME").string / ".config").string - result.normalizePathEnd(trailingSep = true) - -proc getTempDir*(): string {.rtl, extern: "nos$1", - tags: [ReadEnvEffect, ReadIOEffect].} = - ## Returns the temporary directory of the current user for applications to - ## save temporary files in. - ## - ## **Please do not use this**: On Android, it currently - ## returns ``getHomeDir()``, and on other Unix based systems it can cause - ## security problems too. That said, you can override this implementation - ## by adding ``-d:tempDir=mytempname`` to your compiler invokation. - when defined(tempDir): - const tempDir {.strdefine.}: string = nil - return tempDir - elif defined(windows): return string(getEnv("TEMP")) & "\\" - elif defined(android): return getHomeDir() - else: return "/tmp/" - -proc expandTilde*(path: string): string {. - tags: [ReadEnvEffect, ReadIOEffect].} = - ## Expands ``~`` or a path starting with ``~/`` to a full path, replacing - ## ``~`` with ``getHomeDir()`` (otherwise returns ``path`` unmodified). - ## - ## Windows: this is still supported despite Windows platform not having this - ## convention; also, both ``~/`` and ``~\`` are handled. - runnableExamples: - doAssert expandTilde("~" / "appname.cfg") == getHomeDir() / "appname.cfg" - if len(path) == 0 or path[0] != '~': - result = path - elif len(path) == 1: - result = getHomeDir() - elif (path[1] in {DirSep, AltSep}): - result = getHomeDir() / path.substr(2) - else: - # TODO: handle `~bob` and `~bob/` which means home of bob - result = path - -# TODO: consider whether quoteShellPosix, quoteShellWindows, quoteShell, quoteShellCommand -# belong in `strutils` instead; they are not specific to paths -proc quoteShellWindows*(s: string): string {.noSideEffect, rtl, extern: "nosp$1".} = - ## Quote s, so it can be safely passed to Windows API. - ## Based on Python's subprocess.list2cmdline - ## See http://msdn.microsoft.com/en-us/library/17w5ykft.aspx - let needQuote = {' ', '\t'} in s or s.len == 0 - - result = "" - var backslashBuff = "" - if needQuote: - result.add("\"") - - for c in s: - if c == '\\': - backslashBuff.add(c) - elif c == '\"': - result.add(backslashBuff) - result.add(backslashBuff) - backslashBuff.setLen(0) - result.add("\\\"") - else: - if backslashBuff.len != 0: - result.add(backslashBuff) - backslashBuff.setLen(0) - result.add(c) - - if needQuote: - result.add("\"") - -proc quoteShellPosix*(s: string): string {.noSideEffect, rtl, extern: "nosp$1".} = - ## Quote ``s``, so it can be safely passed to POSIX shell. - ## Based on Python's pipes.quote - const safeUnixChars = {'%', '+', '-', '.', '/', '_', ':', '=', '@', - '0'..'9', 'A'..'Z', 'a'..'z'} - if s.len == 0: - return "''" - - let safe = s.allCharsInSet(safeUnixChars) - - if safe: - return s - else: - return "'" & s.replace("'", "'\"'\"'") & "'" - -when defined(windows) or defined(posix) or defined(nintendoswitch): - proc quoteShell*(s: string): string {.noSideEffect, rtl, extern: "nosp$1".} = - ## Quote ``s``, so it can be safely passed to shell. - when defined(windows): - return quoteShellWindows(s) - else: - return quoteShellPosix(s) - - proc quoteShellCommand*(args: openArray[string]): string = - ## Concatenates and quotes shell arguments `args` - runnableExamples: - when defined(posix): - assert quoteShellCommand(["aaa", "", "c d"]) == "aaa '' 'c d'" - when defined(windows): - assert quoteShellCommand(["aaa", "", "c d"]) == "aaa \"\" \"c d\"" - # can't use `map` pending https://github.com/nim-lang/Nim/issues/8303 - for i in 0..<args.len: - if i > 0: result.add " " - result.add quoteShell(args[i]) - -when isMainModule: - assert quoteShellWindows("aaa") == "aaa" - assert quoteShellWindows("aaa\"") == "aaa\\\"" - assert quoteShellWindows("") == "\"\"" - - assert quoteShellPosix("aaa") == "aaa" - assert quoteShellPosix("aaa a") == "'aaa a'" - assert quoteShellPosix("") == "''" - assert quoteShellPosix("a'a") == "'a'\"'\"'a'" - - when defined(posix): - assert quoteShell("") == "''" - - block normalizePathEndTest: - # handle edge cases correctly: shouldn't affect whether path is - # absolute/relative - doAssert "".normalizePathEnd(true) == "" - doAssert "".normalizePathEnd(false) == "" - doAssert "/".normalizePathEnd(true) == $DirSep - doAssert "/".normalizePathEnd(false) == $DirSep - - when defined(posix): - doAssert "//".normalizePathEnd(false) == "/" - doAssert "foo.bar//".normalizePathEnd == "foo.bar" - doAssert "bar//".normalizePathEnd(trailingSep = true) == "bar/" - when defined(Windows): - doAssert r"C:\foo\\".normalizePathEnd == r"C:\foo" - doAssert r"C:\foo".normalizePathEnd(trailingSep = true) == r"C:\foo\" - # this one is controversial: we could argue for returning `D:\` instead, - # but this is simplest. - doAssert r"D:\".normalizePathEnd == r"D:" - doAssert r"E:/".normalizePathEnd(trailingSep = true) == r"E:\" - doAssert "/".normalizePathEnd == r"\" +## This module is deprecated, ``import os`` instead. +{.deprecated: "import os.nim instead".} + +import os +export ReadEnvEffect, WriteEnvEffect, ReadDirEffect, WriteDirEffect, OSErrorCode, + doslikeFileSystem, CurDir, ParDir, DirSep, AltSep, PathSep, FileSystemCaseSensitive, + ExeExt, ScriptExt, DynlibFormat, ExtSep, joinPath, `/`, splitPath, parentDir, + tailDir, isRootDir, parentDirs, `/../`, searchExtPos, splitFile, extractFilename, + lastPathPart, changeFileExt, addFileExt, cmpPaths, isAbsolute, unixToNativePath, + `==`, `$`, osErrorMsg, raiseOSError, osLastError, getEnv, existsEnv, putEnv, + getHomeDir, getConfigDir, getTempDir, expandTilde, quoteShellWindows, + quoteShellPosix, quoteShell, quoteShellCommand |