package core_unix
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Dune Dependency
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doc/core_unix.filename_unix/Filename_unix/index.html
Module Filename_unix
Source
include module type of struct include Core.Filename end
include module type of Core_kernel.Filename
include Bin_prot.Binable.S with type t := t
val bin_size_t : t Bin_prot.Size.sizer
val bin_write_t : t Bin_prot.Write.writer
val bin_read_t : t Bin_prot.Read.reader
val __bin_read_t__ : (int -> t) Bin_prot.Read.reader
val bin_writer_t : t Bin_prot.Type_class.writer
val bin_reader_t : t Bin_prot.Type_class.reader
val bin_t : t Bin_prot.Type_class.t
include Base.Comparable.S
with type t := t
with type comparator_witness = Core_kernel__.String.comparator_witness
ascending
is identical to compare
. descending x y = ascending y x
. These are intended to be mnemonic when used like List.sort ~compare:ascending
and List.sort ~cmp:descending
, since they cause the list to be sorted in ascending or descending order, respectively.
clamp_exn t ~min ~max
returns t'
, the closest value to t
such that between t' ~low:min ~high:max
is true.
Raises if not (min <= max)
.
val comparator : (t, comparator_witness) Base__.Comparator.comparator
module Replace_polymorphic_compare = Core.Filename.Replace_polymorphic_compare
module Map = Core.Filename.Map
module Set = Core.Filename.Set
val hash_fold_t :
Ppx_hash_lib.Std.Hash.state ->
t ->
Ppx_hash_lib.Std.Hash.state
val hash : t -> Ppx_hash_lib.Std.Hash.hash_value
val hashable : t Base.Hashable.t
module Table = Core.Filename.Table
module Hash_set = Core.Filename.Hash_set
module Hash_queue = Core.Filename.Hash_queue
Pathname resolution
is_posix_pathname_component f
Note that this checks a path component, and not a full path.
http://www.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap03.html#tag_03_169
The name of the temporary directory:
Under Unix, the value of the TMPDIR
environment variable, or "/tmp" if the variable is not set.
Under Windows, the value of the TEMP
environment variable, or "." if the variable is not set.
The conventional name for the current directory (e.g. .
in Unix).
The conventional name for the parent of the current directory (e.g. ..
in Unix).
val concat :
Core_kernel__.Import.string ->
Core_kernel__.Import.string ->
Core_kernel__.Import.string
concat p1 p2
returns a path equivalent to p1 ^ "/" ^ p2
. In the resulting path p1 (resp. p2) has all its trailing (resp. leading) "." and "/" removed. eg: concat "a/." ".//b" => "a/b" concat "." "b" => "./b" concat "a" "." => "a/." concat "a" "/b" => "a/b"
@throws Failure if p1
is empty.
Return true
if the file name is relative to the current directory, false
if it is absolute (i.e. in Unix, starts with /
).
Return true
if the file name is relative and does not start with an explicit reference to the current directory (./
or ../
in Unix), false
if it starts with an explicit reference to the root directory or the current directory.
val check_suffix :
Core_kernel__.Import.string ->
Core_kernel__.Import.string ->
Core_kernel__.Import.bool
check_suffix name suff
returns true
if the filename name
ends with the suffix suff
.
val chop_suffix :
Core_kernel__.Import.string ->
Core_kernel__.Import.string ->
Core_kernel__.Import.string
chop_suffix name suff
removes the suffix suff
from the filename name
. The behavior is undefined if name
does not end with the suffix suff
.
Return the given file name without its extension. The extension is the shortest suffix starting with a period and not including a directory separator, .xyz
for instance.
Raise Invalid_argument
if the given name does not contain an extension.
val split_extension :
Core_kernel__.Import.string ->
Core_kernel__.Import.string
* Core_kernel__.Import.string Core_kernel__.Import.option
split_extension fn
return the portion of the filename before the extension and the (optional) extension. Example: split_extension "/foo/my_file" = ("/foo/my_file", None) split_extension "/foo/my_file.txt" = ("/foo/my_file", Some "txt") split_extension "/home/c.falls/my_file" = ("/home/c.falls/my_file", None)
Respects the posix semantic.
Split a file name into directory name / base file name. concat (dirname name) (basename name)
returns a file name which is equivalent to name
. Moreover, after setting the current directory to dirname name
(with Sys.chdir
), references to basename name
(which is a relative file name) designate the same file as name
before the call to Sys.chdir
.
The result is not specified if the argument is not a valid file name (for example, under Unix if there is a NUL character in the string).
See Filename.basename
.
val to_absolute_exn :
Core_kernel__.Import.string ->
relative_to:Core_kernel__.Import.string ->
Core_kernel__.Import.string
Returns the absolute path by prepending relative_to
if the path is not already absolute.
Using the result of Core.Unix.getcwd
as relative_to
is often a reasonable choice.
Note that to_absolute_exn
may return a non-canonical path (e.g. /foo/bar/../baz).
Raises if relative_to
is a relative path.
val split :
Core_kernel__.Import.string ->
Core_kernel__.Import.string * Core_kernel__.Import.string
split filename
returns (dirname filename, basename filename)
parts filename
returns a list of path components in order. For instance: /tmp/foo/bar/baz -> "/"; "tmp"; "foo"; "bar"; "baz"
. The first component is always either "." for relative paths or "/" for absolute ones.
of_parts parts
joins a list of path components into a path. It does roughly the opposite of parts
, but they fail to be precisely mutually inverse because of ambiguities like multiple consecutive slashes and . components.
Raises an error if given an empty list.
Return a quoted version of a file name, suitable for use as one argument in a command line, escaping all meta-characters. Warning: under Windows, the output is only suitable for use with programs that follow the standard Windows quoting conventions.
See Sys.quote
for an alternative implementation that is more human readable but less portable.
module Stable = Core.Filename.Stable
realpath path
val open_temp_file :
?perm:int ->
?in_dir:string ->
string ->
string ->
string * Core__.Import.Out_channel.t
Same as Core_filename.temp_file
, but returns both the name of a fresh temporary file, and an output channel opened (atomically) on this file. This function is more secure than temp_file
: there is no risk that the temporary file will be modified (e.g. replaced by a symbolic link) before the program opens it.
val open_temp_file_fd :
?perm:int ->
?in_dir:string ->
string ->
string ->
string * Caml_unix.file_descr
Similar to Core_filename.open_temp_file
, but returns a Unix file descriptor open in read&write mode instead of an Out_channel.t
.
temp_file ?perm ?in_dir_name prefix suffix
Returns the name of a fresh temporary file in the temporary directory. The base name of the temporary file is formed by concatenating prefix, then .tmp.
, then a 6-digit hex number, then suffix. The temporary file is created empty. The file is guaranteed to be fresh, i.e. not already existing in the directory.
Note that prefix and suffix will be changed when necessary to make the final filename valid POSIX.
temp_dir
is the same as temp_file
but creates a temporary directory.
val create_arg_type :
?key:'a Core_kernel.Univ_map.Multi.Key.t ->
(string -> 'a) ->
'a Core_kernel.Command.Arg_type.t
create_arg_type
's resulting Arg_type.t
does bash autocompletion, via compgen
.
arg_type
is create_arg_type Fn.id