NAME
Path::Naive - Yet another abstract, Unix-like path manipulation routines
VERSION
This document describes version 0.043 of Path::Naive (from Perl
distribution Path-Naive), released on 2020-02-12.
SYNOPSIS
use Path::Naive qw(
abs_path
concat_path
concat_and_normalize_path
is_abs_path
is_rel_path
normalize_path
rel_path
split_path
);
# split path to its elements.
@dirs = split_path(""); # dies, empty path
@dirs = split_path("/"); # -> ()
@dirs = split_path("a"); # -> ("a")
@dirs = split_path("/a"); # -> ("a")
@dirs = split_path("/a/"); # -> ("a")
@dirs = split_path("/a/b/c"); # -> ("a", "b", "c")
@dirs = split_path("/a//b////c//"); # -> ("a", "b", "c")
@dirs = split_path("../a"); # -> ("..", "a")
@dirs = split_path("./a"); # -> (".", "a")
@dirs = split_path("../../a"); # -> ("..", "..", "a")
@dirs = split_path(".././../a"); # -> ("..", ".", "..", "a")
@dirs = split_path("a/b/c/.."); # -> ("a", "b", "c", "..")
# normalize path (collapse . & .., remove double & trailing / except on "/").
$p = normalize_path(""); # dies, empty path
$p = normalize_path("/"); # -> "/"
$p = normalize_path(".."); # -> ".."
$p = normalize_path("./"); # -> "."
$p = normalize_path("//"); # -> "/"
$p = normalize_path("a/b/."); # -> "a/b"
$p = normalize_path("a/b/./"); # -> "a/b"
$p = normalize_path("a/b/.."); # -> "a"
$p = normalize_path("a/b/../"); # -> "a"
$p = normalize_path("/a/./../b"); # -> "/b"
$p = normalize_path("/a/../../b"); # -> "/b" (.. after hitting root is ok)
# check whether path is absolute (starts from root).
say is_abs_path("/"); # -> 1
say is_abs_path("/a"); # -> 1
say is_abs_path("/.."); # -> 1
say is_abs_path("."); # -> 0
say is_abs_path("./b"); # -> 0
say is_abs_path("b/c/"); # -> 0
# this is basically just !is_abs_path($path).
say is_rel_path("/"); # -> 0
say is_rel_path("a/b"); # -> 1
# concatenate two paths.
say concat_path("a", "b"); # -> "a/b"
say concat_path("a/", "b"); # -> "a/b"
say concat_path("a", "b/"); # -> "a/b/"
say concat_path("a", "../b/"); # -> "a/../b/"
say concat_path("a/b", ".././c"); # -> "a/b/.././c"
say concat_path("../", ".././c/"); # -> "../.././c/"
say concat_path("a/b/c", "/d/e"); # -> "/d/e" (path2 is absolute)
# this is just concat_path + normalize_path the result. note that it can return
# path string (in scalar context) or path elements (in list context).
$p = concat_and_normalize_path("a", "b"); # -> "a/b"
$p = concat_and_normalize_path("a/", "b"); # -> "a/b"
$p = concat_and_normalize_path("a", "b/"); # -> "a/b"
$p = concat_and_normalize_path("a", "../b/"); # -> "b"
$p = concat_and_normalize_path("a/b", ".././c"); # -> "a/c"
$p = concat_and_normalize_path("../", ".././c/"); # -> "../../c"
# abs_path($path, $base) is equal to concat_path_n($base, $path). $base must be
# absolute.
$p = abs_path("a", "b"); # dies, $base is not absolute
$p = abs_path("a", "/b"); # -> "/b/a"
$p = abs_path(".", "/b"); # -> "/b"
$p = abs_path("a/c/..", "/b/"); # -> "/b/a"
$p = abs_path("/a", "/b/c"); # -> "/a"
# rel_path($path, $base) makes $path relative. the opposite of abs_path().
$p = rel_path("a", "/b"); # dies, $path is not absolute
$p = rel_path("/a", "b"); # dies, $base is not absolute
$p = rel_path("/a", "/b"); # -> "../a"
$p = rel_path("/b/c/e", "/b/d/f"); # -> "../../c/e"
DESCRIPTION
This is yet another set of routines to manipulate abstract Unix-like
paths. Abstract means not tied to actual filesystem. Unix-like means
single-root tree, with forward slash "/" as separator, and "." and ".."
to mean current- and parent directory. Naive means not having the
concept of symlinks, so paths need not be traversed on a per-directory
basis (see File::Spec::Unix where it mentions the word "naive").
These routines can be useful if you have a tree data and want to let
users walk around it using filesystem-like semantics. Some examples of
where these routines are used: Config::Tree, Riap (App::riap).
FUNCTIONS
abs_path($path, $base) => str
concat_and_normalize_path($path1, $path2, ...) => str
concat_path($path1, $path2, ...) => str
is_abs_path($path) => bool
is_rel_path($path) => bool
normalize_and_split_path($path) => list
normalize_path($path) => str
rel_path($path, $base) => str
split_path($path) => list
HOMEPAGE
Please visit the project's homepage at
.
SOURCE
Source repository is at .
BUGS
Please report any bugs or feature requests on the bugtracker website
When submitting a bug or request, please include a test-file or a patch
to an existing test-file that illustrates the bug or desired feature.
SEE ALSO
Path::Abstract a similar module. The difference is, it does not
interpret "." and "..".
File::Spec::Unix a similar module, with some differences in parsing
behavior.
AUTHOR
perlancar
COPYRIGHT AND LICENSE
This software is copyright (c) 2020, 2014, 2013 by perlancar@cpan.org.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.