晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
| DIR:/opt/alt/ruby18/share/ri/1.8/system/Pathname/ |
| Current File : //opt/alt/ruby18/share/ri/1.8/system/Pathname/cdesc-Pathname.yaml |
--- !ruby/object:RI::ClassDescription
attributes: []
class_methods:
- !ruby/object:RI::MethodSummary
name: getwd
- !ruby/object:RI::MethodSummary
name: glob
- !ruby/object:RI::MethodSummary
name: new
comment:
- !ruby/struct:SM::Flow::H
level: 2
text: Pathname
- !ruby/struct:SM::Flow::P
body: "Pathname represents a pathname which locates a file in a filesystem. The pathname depends on OS: Unix, Windows, etc. Pathname library works with pathnames of local OS. However non-Unix pathnames are supported experimentally."
- !ruby/struct:SM::Flow::P
body: It does not represent the file itself. A Pathname can be relative or absolute. It's not until you try to reference the file that it even matters whether the file exists or not.
- !ruby/struct:SM::Flow::P
body: Pathname is immutable. It has no method for destructive update.
- !ruby/struct:SM::Flow::P
body: The value of this class is to manipulate file path information in a neater way than standard Ruby provides. The examples below demonstrate the difference. <b>All</b> functionality from File, FileTest, and some from Dir and FileUtils is included, in an unsurprising way. It is essentially a facade for all of these, and more.
- !ruby/struct:SM::Flow::H
level: 2
text: Examples
- !ruby/struct:SM::Flow::H
level: 3
text: "Example 1: Using Pathname"
- !ruby/struct:SM::Flow::VERB
body: " require 'pathname'\n p = Pathname.new("/usr/bin/ruby")\n size = p.size # 27662\n isdir = p.directory? # false\n dir = p.dirname # Pathname:/usr/bin\n base = p.basename # Pathname:ruby\n dir, base = p.split # [Pathname:/usr/bin, Pathname:ruby]\n data = p.read\n p.open { |f| _ }\n p.each_line { |line| _ }\n"
- !ruby/struct:SM::Flow::H
level: 3
text: "Example 2: Using standard Ruby"
- !ruby/struct:SM::Flow::VERB
body: " p = "/usr/bin/ruby"\n size = File.size(p) # 27662\n isdir = File.directory?(p) # false\n dir = File.dirname(p) # "/usr/bin"\n base = File.basename(p) # "ruby"\n dir, base = File.split(p) # ["/usr/bin", "ruby"]\n data = File.read(p)\n File.open(p) { |f| _ }\n File.foreach(p) { |line| _ }\n"
- !ruby/struct:SM::Flow::H
level: 3
text: "Example 3: Special features"
- !ruby/struct:SM::Flow::VERB
body: " p1 = Pathname.new("/usr/lib") # Pathname:/usr/lib\n p2 = p1 + "ruby/1.8" # Pathname:/usr/lib/ruby/1.8\n p3 = p1.parent # Pathname:/usr\n p4 = p2.relative_path_from(p3) # Pathname:lib/ruby/1.8\n pwd = Pathname.pwd # Pathname:/home/gavin\n pwd.absolute? # true\n p5 = Pathname.new "." # Pathname:.\n p5 = p5 + "music/../articles" # Pathname:music/../articles\n p5.cleanpath # Pathname:articles\n p5.realpath # Pathname:/home/gavin/articles\n p5.children # [Pathname:/home/gavin/articles/linux, ...]\n"
- !ruby/struct:SM::Flow::H
level: 2
text: Breakdown of functionality
- !ruby/struct:SM::Flow::H
level: 3
text: Core methods
- !ruby/struct:SM::Flow::P
body: "These methods are effectively manipulating a String, because that's all a path is. Except for #mountpoint?, #children, and #realpath, they don't access the filesystem."
- !ruby/object:SM::Flow::LIST
contents:
- !ruby/struct:SM::Flow::LI
label: "-"
body: +
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#join"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#parent"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#root?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#absolute?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#relative?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#relative_path_from"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#each_filename"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#cleanpath"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#realpath"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#children"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#mountpoint?"
type: :BULLET
- !ruby/struct:SM::Flow::H
level: 3
text: File status predicate methods
- !ruby/struct:SM::Flow::P
body: "These methods are a facade for FileTest:"
- !ruby/object:SM::Flow::LIST
contents:
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#blockdev?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#chardev?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#directory?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#executable?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#executable_real?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#exist?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#file?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#grpowned?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#owned?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#pipe?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#readable?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#world_readable?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#readable_real?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#setgid?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#setuid?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#size"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#size?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#socket?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#sticky?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#symlink?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#writable?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#world_writable?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#writable_real?"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#zero?"
type: :BULLET
- !ruby/struct:SM::Flow::H
level: 3
text: File property and manipulation methods
- !ruby/struct:SM::Flow::P
body: "These methods are a facade for File:"
- !ruby/object:SM::Flow::LIST
contents:
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#atime"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#ctime"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#mtime"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#chmod(mode)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#lchmod(mode)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#chown(owner, group)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#lchown(owner, group)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#fnmatch(pattern, *args)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#fnmatch?(pattern, *args)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#ftype"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#make_link(old)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#open(*args, &block)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#readlink"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#rename(to)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#stat"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#lstat"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#make_symlink(old)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#truncate(length)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#utime(atime, mtime)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#basename(*args)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#dirname"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#extname"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#expand_path(*args)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#split"
type: :BULLET
- !ruby/struct:SM::Flow::H
level: 3
text: Directory methods
- !ruby/struct:SM::Flow::P
body: "These methods are a facade for Dir:"
- !ruby/object:SM::Flow::LIST
contents:
- !ruby/struct:SM::Flow::LI
label: "-"
body: Pathname.glob(*args)
- !ruby/struct:SM::Flow::LI
label: "-"
body: Pathname.getwd / Pathname.pwd
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#rmdir"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#entries"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#each_entry(&block)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#mkdir(*args)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#opendir(*args)"
type: :BULLET
- !ruby/struct:SM::Flow::H
level: 3
text: IO
- !ruby/struct:SM::Flow::P
body: "These methods are a facade for IO:"
- !ruby/object:SM::Flow::LIST
contents:
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#each_line(*args, &block)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#read(*args)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#readlines(*args)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#sysopen(*args)"
type: :BULLET
- !ruby/struct:SM::Flow::H
level: 3
text: Utilities
- !ruby/struct:SM::Flow::P
body: "These methods are a mixture of Find, FileUtils, and others:"
- !ruby/object:SM::Flow::LIST
contents:
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#find(&block)"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#mkpath"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#rmtree"
- !ruby/struct:SM::Flow::LI
label: "-"
body: "#unlink / #delete"
type: :BULLET
- !ruby/struct:SM::Flow::H
level: 2
text: Method documentation
- !ruby/struct:SM::Flow::P
body: As the above section shows, most of the methods in Pathname are facades. The documentation for these methods generally just says, for instance, "See FileTest.writable?", as you should be familiar with the original method anyway, and its documentation (e.g. through <tt>ri</tt>) will contain more information. In some cases, a brief description will follow.
constants:
- !ruby/object:RI::Constant
comment:
name: SEPARATOR_PAT
value: /[#{Regexp.quote File::ALT_SEPARATOR}#{Regexp.quote File::SEPARATOR}]/
- !ruby/object:RI::Constant
comment:
name: SEPARATOR_PAT
value: /#{Regexp.quote File::SEPARATOR}/
full_name: Pathname
includes: []
instance_methods:
- !ruby/object:RI::MethodSummary
name: +
- !ruby/object:RI::MethodSummary
name: <=>
- !ruby/object:RI::MethodSummary
name: ==
- !ruby/object:RI::MethodSummary
name: ===
- !ruby/object:RI::MethodSummary
name: TO_PATH
- !ruby/object:RI::MethodSummary
name: absolute?
- !ruby/object:RI::MethodSummary
name: add_trailing_separator
- !ruby/object:RI::MethodSummary
name: ascend
- !ruby/object:RI::MethodSummary
name: atime
- !ruby/object:RI::MethodSummary
name: basename
- !ruby/object:RI::MethodSummary
name: blockdev?
- !ruby/object:RI::MethodSummary
name: chardev?
- !ruby/object:RI::MethodSummary
name: chdir
- !ruby/object:RI::MethodSummary
name: children
- !ruby/object:RI::MethodSummary
name: chmod
- !ruby/object:RI::MethodSummary
name: chop_basename
- !ruby/object:RI::MethodSummary
name: chown
- !ruby/object:RI::MethodSummary
name: chroot
- !ruby/object:RI::MethodSummary
name: cleanpath
- !ruby/object:RI::MethodSummary
name: cleanpath_aggressive
- !ruby/object:RI::MethodSummary
name: cleanpath_conservative
- !ruby/object:RI::MethodSummary
name: ctime
- !ruby/object:RI::MethodSummary
name: del_trailing_separator
- !ruby/object:RI::MethodSummary
name: delete
- !ruby/object:RI::MethodSummary
name: descend
- !ruby/object:RI::MethodSummary
name: dir_foreach
- !ruby/object:RI::MethodSummary
name: directory?
- !ruby/object:RI::MethodSummary
name: dirname
- !ruby/object:RI::MethodSummary
name: each_entry
- !ruby/object:RI::MethodSummary
name: each_filename
- !ruby/object:RI::MethodSummary
name: each_line
- !ruby/object:RI::MethodSummary
name: entries
- !ruby/object:RI::MethodSummary
name: eql?
- !ruby/object:RI::MethodSummary
name: executable?
- !ruby/object:RI::MethodSummary
name: executable_real?
- !ruby/object:RI::MethodSummary
name: exist?
- !ruby/object:RI::MethodSummary
name: expand_path
- !ruby/object:RI::MethodSummary
name: extname
- !ruby/object:RI::MethodSummary
name: file?
- !ruby/object:RI::MethodSummary
name: find
- !ruby/object:RI::MethodSummary
name: fnmatch
- !ruby/object:RI::MethodSummary
name: fnmatch?
- !ruby/object:RI::MethodSummary
name: foreach
- !ruby/object:RI::MethodSummary
name: foreachline
- !ruby/object:RI::MethodSummary
name: freeze
- !ruby/object:RI::MethodSummary
name: ftype
- !ruby/object:RI::MethodSummary
name: grpowned?
- !ruby/object:RI::MethodSummary
name: has_trailing_separator?
- !ruby/object:RI::MethodSummary
name: join
- !ruby/object:RI::MethodSummary
name: lchmod
- !ruby/object:RI::MethodSummary
name: lchown
- !ruby/object:RI::MethodSummary
name: link
- !ruby/object:RI::MethodSummary
name: lstat
- !ruby/object:RI::MethodSummary
name: make_link
- !ruby/object:RI::MethodSummary
name: make_symlink
- !ruby/object:RI::MethodSummary
name: mkdir
- !ruby/object:RI::MethodSummary
name: mkpath
- !ruby/object:RI::MethodSummary
name: mountpoint?
- !ruby/object:RI::MethodSummary
name: mtime
- !ruby/object:RI::MethodSummary
name: open
- !ruby/object:RI::MethodSummary
name: opendir
- !ruby/object:RI::MethodSummary
name: owned?
- !ruby/object:RI::MethodSummary
name: parent
- !ruby/object:RI::MethodSummary
name: pipe?
- !ruby/object:RI::MethodSummary
name: plus
- !ruby/object:RI::MethodSummary
name: prepend_prefix
- !ruby/object:RI::MethodSummary
name: read
- !ruby/object:RI::MethodSummary
name: readable?
- !ruby/object:RI::MethodSummary
name: readable_real?
- !ruby/object:RI::MethodSummary
name: readlines
- !ruby/object:RI::MethodSummary
name: readlink
- !ruby/object:RI::MethodSummary
name: realpath
- !ruby/object:RI::MethodSummary
name: realpath_rec
- !ruby/object:RI::MethodSummary
name: relative?
- !ruby/object:RI::MethodSummary
name: relative_path_from
- !ruby/object:RI::MethodSummary
name: rename
- !ruby/object:RI::MethodSummary
name: rmdir
- !ruby/object:RI::MethodSummary
name: rmtree
- !ruby/object:RI::MethodSummary
name: root?
- !ruby/object:RI::MethodSummary
name: setgid?
- !ruby/object:RI::MethodSummary
name: setuid?
- !ruby/object:RI::MethodSummary
name: size
- !ruby/object:RI::MethodSummary
name: size?
- !ruby/object:RI::MethodSummary
name: socket?
- !ruby/object:RI::MethodSummary
name: split
- !ruby/object:RI::MethodSummary
name: split_names
- !ruby/object:RI::MethodSummary
name: stat
- !ruby/object:RI::MethodSummary
name: sticky?
- !ruby/object:RI::MethodSummary
name: sub
- !ruby/object:RI::MethodSummary
name: symlink
- !ruby/object:RI::MethodSummary
name: symlink?
- !ruby/object:RI::MethodSummary
name: sysopen
- !ruby/object:RI::MethodSummary
name: taint
- !ruby/object:RI::MethodSummary
name: to_s
- !ruby/object:RI::MethodSummary
name: truncate
- !ruby/object:RI::MethodSummary
name: unlink
- !ruby/object:RI::MethodSummary
name: untaint
- !ruby/object:RI::MethodSummary
name: utime
- !ruby/object:RI::MethodSummary
name: world_readable?
- !ruby/object:RI::MethodSummary
name: world_writable?
- !ruby/object:RI::MethodSummary
name: writable?
- !ruby/object:RI::MethodSummary
name: writable_real?
- !ruby/object:RI::MethodSummary
name: zero?
name: Pathname
superclass: Object
|