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Class: File

Inherits:
IO show all
Defined in:
opal/opal/corelib/file.rb

Overview

helpers: truthy

Constant Summary collapse

Separator =
SEPARATOR = '/'
ALT_SEPARATOR =
nil
PATH_SEPARATOR =
':'
FNM_SYSCASE =

Assuming case insenstive filesystem

0

Constants inherited from IO

IO::READABLE , IO::SEEK_CUR , IO::SEEK_DATA , IO::SEEK_END , IO::SEEK_HOLE , IO::SEEK_SET , IO::WRITABLE

Instance Attribute Summary

Attributes inherited from IO

#eof , #read_proc , #sync , #tty , #write_proc

Class Method Summary collapse

Methods inherited from IO

#<< , #check_readable , #check_writable , #close , #close_read , #close_write , #closed? , #closed_read? , #closed_write? , #each , #each_byte , #each_char , #fileno , #flush , #getbyte , #getc , #gets , #initialize , #print , #puts , #read , #readbyte , #readchar , #readline , #readlines , #readpartial , #sysread , #sysread_noraise , #tty? , #write

Constructor Details

This class inherits a constructor from IO

Class Method Details

.absolute_path(path, basedir = nil) ⇒ Object

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# File 'opal/opal/corelib/file.rb', line 12
def absolute_path(path, basedir = nil)
 sep = SEPARATOR
 sep_chars = `$sep_chars()`
 new_parts = []
 path = path.respond_to?(:to_path) ? path.to_path : path
 basedir ||= Dir .pwd 
 path_abs = `path.substr(0, sep.length) === sep || windows_root_rx.test(path)`
 basedir_abs = `basedir.substr(0, sep.length) === sep || windows_root_rx.test(basedir)`
 if path_abs
 parts = path.split(/[#{sep_chars}]/)
 leading_sep = `windows_root_rx.test(path) ? '' : #{path.sub(/^([#{sep_chars}]+).*$/, '1円')}`
 abs = true
 else
 parts = basedir.split(/[#{sep_chars}]/) + path.split(/[#{sep_chars}]/)
 leading_sep = `windows_root_rx.test(basedir) ? '' : #{basedir.sub(/^([#{sep_chars}]+).*$/, '1円')}`
 abs = basedir_abs
 end
 %x{
 var part;
 for (var i = 0, ii = parts.length; i < ii; i++) {
 part = parts[i];
 if (
 (part === nil) ||
 (part === '' && ((new_parts.length === 0) || abs)) ||
 (part === '.' && ((new_parts.length === 0) || abs))
 ) {
 continue;
 }
 if (part === '..') {
 new_parts.pop();
 } else {
 new_parts.push(part);
 }
 }
 if (!abs && parts[0] !== '.') {
 #{new_parts.unshift '.'}
 }
 }
 new_path = new_parts.join(sep)
 new_path = leading_sep + new_path if abs
 new_path
end

.basename(name, suffix = nil) ⇒ Object

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# File 'opal/opal/corelib/file.rb', line 119
def basename(name, suffix = nil)
 sep_chars = `$sep_chars()`
 name = `$coerce_to_path(name)`
 %x{
 if (name.length == 0) {
 return name;
 }
 if (suffix !== nil) {
 suffix = #{Opal .coerce_to! (suffix, String , :to_str)}
 } else {
 suffix = null;
 }
 name = name.replace(new RegExp(#{"(.)[#{sep_chars}]*$"}), '1ドル');
 name = name.replace(new RegExp(#{"^(?:.*[#{sep_chars}])?([^#{sep_chars}]+)$"}), '1ドル');
 if (suffix === ".*") {
 name = name.replace(/\.[^\.]+$/, '');
 } else if(suffix !== null) {
 suffix = Opal.escape_regexp(suffix);
 name = name.replace(new RegExp(#{"#{suffix}$"}), '');
 }
 return name;
 }
end

.directory?(path) ⇒ Boolean

Returns:

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# File 'opal/opal/corelib/file.rb', line 161
def directory?(path)
 files = []
 %x{
 for (var key in Opal.modules) {
 #{files}.push(key)
 }
 }
 path = path.gsub(/(^.#{SEPARATOR}+|#{SEPARATOR}+$)/)
 file = files.find { |f| f =~ /^#{path}/ }
 file
end

.dirname(path) ⇒ Object

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# File 'opal/opal/corelib/file.rb', line 101
def dirname(path)
 sep_chars = `$sep_chars()`
 path = `$coerce_to_path(path)`
 %x{
 var absolute = path.match(new RegExp(#{"^[#{sep_chars}]"}));
 path = path.replace(new RegExp(#{"[#{sep_chars}]+$"}), ''); // remove trailing separators
 path = path.replace(new RegExp(#{"[^#{sep_chars}]+$"}), ''); // remove trailing basename
 path = path.replace(new RegExp(#{"[#{sep_chars}]+$"}), ''); // remove final trailing separators
 if (path === '') {
 return absolute ? '/' : '.';
 }
 return path;
 }
end

.exist?(path) ⇒ Boolean Also known as: exists?

Returns:

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# File 'opal/opal/corelib/file.rb', line 156
def exist?(path)
 `Opal.modules[#{path}] != null`
end

.expand_path(path, basedir = nil) ⇒ Object Also known as: realpath

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# File 'opal/opal/corelib/file.rb', line 61
def expand_path(path, basedir = nil)
 sep = SEPARATOR
 sep_chars = `$sep_chars()`
 if `path[0] === '~' || (basedir && basedir[0] === '~')`
 home = Dir .home 
 raise(ArgumentError , "couldn't find HOME environment -- expanding `~'") unless home
 leading_sep = `windows_root_rx.test(home) ? '' : #{home.sub(/^([#{sep_chars}]+).*$/, '1円')}`
 raise(ArgumentError , 'non-absolute home') unless home.start_with?(leading_sep)
 home += sep
 home_path_regexp = /^\~(?:#{sep}|$)/
 path = path.sub(home_path_regexp, home)
 basedir = basedir.sub(home_path_regexp, home) if basedir
 end
 absolute_path(path, basedir)
end

.extname(path) ⇒ Object

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# File 'opal/opal/corelib/file.rb', line 147
def extname(path)
 `path = $coerce_to_path(path)`
 filename = basename(path)
 return '' if filename.empty?
 last_dot_idx = filename[1..-1].rindex('.')
 # extension name must contains at least one character .(something)
 last_dot_idx.nil? || last_dot_idx + 1 == filename.length - 1 ? '' : filename[(last_dot_idx + 1)..-1]
end

.join(*paths) ⇒ Object

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# File 'opal/opal/corelib/file.rb', line 173
def join(*paths)
 if paths.empty?
 return ''
 end
 result = ''
 paths = paths.flatten.each_with_index.map do |item, index|
 if index == 0 && item.empty?
 SEPARATOR
 elsif paths.length == index + 1 && item.empty?
 SEPARATOR
 else
 item
 end
 end
 paths = paths.reject(&:empty?)
 paths.each_with_index do |item, index|
 next_item = paths[index + 1]
 if next_item.nil?
 result = "#{result}#{item}"
 else
 if item.end_with?(SEPARATOR) && next_item.start_with?(SEPARATOR)
 item = item.sub(/#{SEPARATOR}+$/, '')
 end
 result = if item.end_with?(SEPARATOR) || next_item.start_with?(SEPARATOR)
 "#{result}#{item}"
 else
 "#{result}#{item}#{SEPARATOR}"
 end
 end
 end
 result
end

.split(path) ⇒ Object

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# File 'opal/opal/corelib/file.rb', line 206
def split(path)
 path.split(SEPARATOR)
end

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