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|
module CodeRay
module Scanners
class Ruby < Scanner
RESERVED_WORDS = [
'and', 'def', 'end', 'in', 'or', 'unless', 'begin',
'defined?', 'ensure', 'module', 'redo', 'super', 'until',
'BEGIN', 'break', 'do', 'next', 'rescue', 'then',
'when', 'END', 'case', 'else', 'for', 'retry',
'while', 'alias', 'class', 'elsif', 'if', 'not', 'return',
'undef', 'yield',
]
DEF_KEYWORDS = ['def']
MODULE_KEYWORDS = ['class', 'module']
DEF_NEW_STATE = WordList.new(:initial).
add(DEF_KEYWORDS, :def_expected).
add(MODULE_KEYWORDS, :module_expected)
WORDS_ALLOWING_REGEXP = [
'and', 'or', 'not', 'while', 'until', 'unless', 'if', 'elsif', 'when'
]
REGEXP_ALLOWED = WordList.new(false).
add(WORDS_ALLOWING_REGEXP, :set)
PREDEFINED_CONSTANTS = [
'nil', 'true', 'false', 'self',
'DATA', 'ARGV', 'ARGF', '__FILE__', '__LINE__',
]
IDENT_KIND = WordList.new(:ident).
add(RESERVED_WORDS, :reserved).
add(PREDEFINED_CONSTANTS, :pre_constant)
METHOD_NAME = / #{IDENT} [?!]? /xo
METHOD_NAME_EX = /
#{METHOD_NAME} # common methods: split, foo=, empty?, gsub!
| \*\*? # multiplication and power
| [-+~]@? # plus, minus
| [\/%&|^`] # division, modulo or format strings, &and, |or, ^xor, `system`
| \[\]=? # array getter and setter
| <=?>? | >=? # comparison, rocket operator
| << | >> # append or shift left, shift right
| ===? # simple equality and case equality
/ox
GLOBAL_VARIABLE = / \$ (?: #{IDENT} | \d+ | [~&+`'=\/,;_.<>!@0$?*":F\\] | -[a-zA-Z_0-9] ) /ox
DOUBLEQ = / " [^"\#\\]* (?: (?: \#\{.*?\} | \#(?:$")? | \\. ) [^"\#\\]* )* "? /ox
SINGLEQ = / ' [^'\\]* (?: \\. [^'\\]* )* '? /ox
STRING = / #{SINGLEQ} | #{DOUBLEQ} /ox
SHELL = / ` [^`\#\\]* (?: (?: \#\{.*?\} | \#(?:$`)? | \\. ) [^`\#\\]* )* `? /ox
REGEXP = / \/ [^\/\#\\]* (?: (?: \#\{.*?\} | \#(?:$\/)? | \\. ) [^\/\#\\]* )* \/? /ox
DECIMAL = /\d+(?:_\d+)*/ # doesn't recognize 09 as octal error
OCTAL = /0_?[0-7]+(?:_[0-7]+)*/
HEXADECIMAL = /0x[0-9A-Fa-f]+(?:_[0-9A-Fa-f]+)*/
BINARY = /0b[01]+(?:_[01]+)*/
EXPONENT = / [eE] [+-]? #{DECIMAL} /ox
FLOAT = / #{DECIMAL} (?: #{EXPONENT} | \. #{DECIMAL} #{EXPONENT}? ) /
INTEGER = /#{OCTAL}|#{HEXADECIMAL}|#{BINARY}|#{DECIMAL}/
def reset
super
@regexp_allowed = false
end
def next_token
return if @scanner.eos?
kind = :error
if @scanner.scan(/\s+/) # in every state
kind = :space
@regexp_allowed = :set if @regexp_allowed or @scanner.matched.index(?\n) # delayed flag setting
elsif @state == :def_expected
if @scanner.scan(/ (?: (?:#{IDENT}(?:\.|::))* | (?:@@?|$)? #{IDENT}(?:\.|::) ) #{METHOD_NAME_EX} /ox)
kind = :method
@state = :initial
else
@scanner.getch
end
@state = :initial
elsif @state == :module_expected
if @scanner.scan(/<</)
kind = :operator
else
if @scanner.scan(/ (?: #{IDENT} (?:\.|::))* #{IDENT} /ox)
kind = :method
else
@scanner.getch
end
@state = :initial
end
elsif # state == :initial
# IDENTIFIERS, KEYWORDS
if @scanner.scan(GLOBAL_VARIABLE)
kind = :global_variable
elsif @scanner.scan(/ @@ #{IDENT} /ox)
kind = :class_variable
elsif @scanner.scan(/ @ #{IDENT} /ox)
kind = :instance_variable
elsif @scanner.scan(/ __END__\n ( (?!\#CODE\#) .* )? | \#[^\n]* | =begin(?=\s).*? \n=end(?=\s|\z)(?:[^\n]*)? /mx)
kind = :comment
elsif @scanner.scan(METHOD_NAME)
if @last_token_dot
kind = :ident
else
matched = @scanner.matched
kind = IDENT_KIND[matched]
if kind == :ident and matched =~ /^[A-Z]/
kind = :constant
elsif kind == :reserved
@state = DEF_NEW_STATE[matched]
@regexp_allowed = REGEXP_ALLOWED[matched]
end
end
elsif @scanner.scan(STRING)
kind = :string
elsif @scanner.scan(SHELL)
kind = :shell
elsif @scanner.scan(/<<
(?:
([a-zA-Z_0-9]+)
(?: .*? ^\1$ | .* )
|
-([a-zA-Z_0-9]+)
(?: .*? ^\s*\2$ | .* )
|
(["\'`]) (.+?) \3
(?: .*? ^\4$ | .* )
|
- (["\'`]) (.+?) \5
(?: .*? ^\s*\6$ | .* )
)
/mxo)
kind = :string
elsif @scanner.scan(/\//) and @regexp_allowed
@scanner.unscan
@scanner.scan(REGEXP)
kind = :regexp
/%(?:[Qqxrw](?:\([^)#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^)#\\\\]*)*\)?|\[[^\]#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^\]#\\\\]*)*\]?|\{[^}#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^}#\\\\]*)*\}?|<[^>#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^>#\\\\]*)*>?|([^a-zA-Z\\\\])(?:(?!\1)[^#\\\\])*(?:(?:#\{.*?\}|#|\\\\.)(?:(?!\1)[^#\\\\])*)*\1?)|\([^)#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^)#\\\\]*)*\)?|\[[^\]#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^\]#\\\\]*)*\]?|\{[^}#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^}#\\\\]*)*\}?|<[^>#\\\\]*(?:(?:#\{.*?\}|#|\\\\.)[^>#\\\\]*)*>?|([^a-zA-Z\s\\\\])(?:(?!\2)[^#\\\\])*(?:(?:#\{.*?\}|#|\\\\.)(?:(?!\2)[^#\\\\])*)*\2?|\\\\[^#\\\\]*(?:(?:#\{.*?\}|#)[^#\\\\]*)*\\\\?)/
elsif @scanner.scan(/:(?:#{GLOBAL_VARIABLE}|#{METHOD_NAME_EX}|#{STRING})/ox)
kind = :symbol
elsif @scanner.scan(/
\? (?:
[^\s\\]
|
\\ (?:M-\\C-|C-\\M-|M-\\c|c\\M-|c|C-|M-))? (?: \\ (?: . | [0-7]{3} | x[0-9A-Fa-f][0-9A-Fa-f] )
)
/mox)
kind = :integer
elsif @scanner.scan(/ [-+*\/%=<>;,|&!()\[\]{}~?] | \.\.?\.? | ::? /x)
kind = :operator
@regexp_allowed = :set if @scanner.matched[-1,1] =~ /[~=!<>|&^,\(\[+\-\/\*%]\z/
elsif @scanner.scan(FLOAT)
kind = :float
elsif @scanner.scan(INTEGER)
kind = :integer
else
@scanner.getch
end
end
token = Token.new @scanner.matched, kind
if kind == :regexp
token.text << @scanner.scan(/[eimnosux]*/)
end
@regexp_allowed = (@regexp_allowed == :set) # delayed flag setting
token
end
end
register Ruby, 'ruby', 'rb'
end
end
class Set
include Enumerable
# Creates a new set containing the given objects.
def self.[](*ary)
new(ary)
end
# Creates a new set containing the elements of the given enumerable
# object.
#
# If a block is given, the elements of enum are preprocessed by the
# given block.
def initialize(enum = nil, &block) # :yields: o
@hash ||= Hash.new
enum.nil? and return
if block
enum.each { |o| add(block[o]) }
else
merge(enum)
end
end
# Copy internal hash.
def initialize_copy(orig)
@hash = orig.instance_eval{@hash}.dup
end
# Returns the number of elements.
def size
@hash.size
end
alias length size
# Returns true if the set contains no elements.
def empty?
@hash.empty?
end
# Removes all elements and returns self.
def clear
@hash.clear
self
end
# Replaces the contents of the set with the contents of the given
# enumerable object and returns self.
def replace(enum)
if enum.class == self.class
@hash.replace(enum.instance_eval { @hash })
else
enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
clear
enum.each { |o| add(o) }
end
self
end
# Converts the set to an array. The order of elements is uncertain.
def to_a
@hash.keys
end
def flatten_merge(set, seen = Set.new)
set.each { |e|
if e.is_a?(Set)
if seen.include?(e_id = e.object_id)
raise ArgumentError, "tried to flatten recursive Set"
end
seen.add(e_id)
flatten_merge(e, seen)
seen.delete(e_id)
else
add(e)
end
}
self
end
protected :flatten_merge
# Returns a new set that is a copy of the set, flattening each
# containing set recursively.
def flatten
self.class.new.flatten_merge(self)
end
# Equivalent to Set#flatten, but replaces the receiver with the
# result in place. Returns nil if no modifications were made.
def flatten!
if detect { |e| e.is_a?(Set) }
replace(flatten())
else
nil
end
end
# Returns true if the set contains the given object.
def include?(o)
@hash.include?(o)
end
alias member? include?
# Returns true if the set is a superset of the given set.
def superset?(set)
set.is_a?(Set) or raise ArgumentError, "value must be a set"
return false if size < set.size
set.all? { |o| include?(o) }
end
# Returns true if the set is a proper superset of the given set.
def proper_superset?(set)
set.is_a?(Set) or raise ArgumentError, "value must be a set"
return false if size <= set.size
set.all? { |o| include?(o) }
end
# Returns true if the set is a subset of the given set.
def subset?(set)
set.is_a?(Set) or raise ArgumentError, "value must be a set"
return false if set.size < size
all? { |o| set.include?(o) }
end
# Returns true if the set is a proper subset of the given set.
def proper_subset?(set)
set.is_a?(Set) or raise ArgumentError, "value must be a set"
return false if set.size <= size
all? { |o| set.include?(o) }
end
# Calls the given block once for each element in the set, passing
# the element as parameter.
def each
@hash.each_key { |o| yield(o) }
self
end
# Adds the given object to the set and returns self. Use +merge+ to
# add several elements at once.
def add(o)
@hash[o] = true
self
end
alias << add
# Adds the given object to the set and returns self. If the
# object is already in the set, returns nil.
def add?(o)
if include?(o)
nil
else
add(o)
end
end
# Deletes the given object from the set and returns self. Use +subtract+ to
# delete several items at once.
def delete(o)
@hash.delete(o)
self
end
# Deletes the given object from the set and returns self. If the
# object is not in the set, returns nil.
def delete?(o)
if include?(o)
delete(o)
else
nil
end
end
# Deletes every element of the set for which block evaluates to
# true, and returns self.
def delete_if
@hash.delete_if { |o,| yield(o) }
self
end
# Do collect() destructively.
def collect!
set = self.class.new
each { |o| set << yield(o) }
replace(set)
end
alias map! collect!
# Equivalent to Set#delete_if, but returns nil if no changes were
# made.
def reject!
n = size
delete_if { |o| yield(o) }
size == n ? nil : self
end
# Merges the elements of the given enumerable object to the set and
# returns self.
def merge(enum)
if enum.is_a?(Set)
@hash.update(enum.instance_eval { @hash })
else
enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
enum.each { |o| add(o) }
end
self
end
# Deletes every element that appears in the given enumerable object
# and returns self.
def subtract(enum)
enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
enum.each { |o| delete(o) }
self
end
# Returns a new set built by merging the set and the elements of the
# given enumerable object.
def |(enum)
enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
dup.merge(enum)
end
alias + | ##
alias union | ##
# Returns a new set built by duplicating the set, removing every
# element that appears in the given enumerable object.
def -(enum)
enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
dup.subtract(enum)
end
alias difference - ##
# Returns a new array containing elements common to the set and the
# given enumerable object.
def &(enum)
enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
n = self.class.new
enum.each { |o| n.add(o) if include?(o) }
n
end
alias intersection & ##
# Returns a new array containing elements exclusive between the set
# and the given enumerable object. (set ^ enum) is equivalent to
# ((set | enum) - (set & enum)).
def ^(enum)
enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
n = dup
enum.each { |o| if n.include?(o) then n.delete(o) else n.add(o) end }
n
end
# Returns true if two sets are equal. The equality of each couple
# of elements is defined according to Object#eql?.
def ==(set)
equal?(set) and return true
set.is_a?(Set) && size == set.size or return false
hash = @hash.dup
set.all? { |o| hash.include?(o) }
end
def hash # :nodoc:
@hash.hash
end
def eql?(o) # :nodoc:
return false unless o.is_a?(Set)
@hash.eql?(o.instance_eval{@hash})
end
# Classifies the set by the return value of the given block and
# returns a hash of {value => set of elements} pairs. The block is
# called once for each element of the set, passing the element as
# parameter.
#
# e.g.:
#
# require 'set'
# files = Set.new(Dir.glob("*.rb"))
# hash = files.classify { |f| File.mtime(f).year }
# p hash # => {2000=>#<Set: {"a.rb", "b.rb"}>,
# # 2001=>#<Set: {"c.rb", "d.rb", "e.rb"}>,
# # 2002=>#<Set: {"f.rb"}>}
def classify # :yields: o
h = {}
each { |i|
x = yield(i)
(h[x] ||= self.class.new).add(i)
}
h
end
# Divides the set into a set of subsets according to the commonality
# defined by the given block.
#
# If the arity of the block is 2, elements o1 and o2 are in common
# if block.call(o1, o2) is true. Otherwise, elements o1 and o2 are
# in common if block.call(o1) == block.call(o2).
#
# e.g.:
#
# require 'set'
# numbers = Set[1, 3, 4, 6, 9, 10, 11]
# set = numbers.divide { |i,j| (i - j).abs == 1 }
# p set # => #<Set: {#<Set: {1}>,
# # #<Set: {11, 9, 10}>,
# # #<Set: {3, 4}>,
# # #<Set: {6}>}>
def divide(&func)
if func.arity == 2
require 'tsort'
class << dig = {} # :nodoc:
include TSort
alias tsort_each_node each_key
def tsort_each_child(node, &block)
fetch(node).each(&block)
end
end
each { |u|
dig[u] = a = []
each{ |v| func.call(u, v) and a << v }
}
set = Set.new()
dig.each_strongly_connected_component { |css|
set.add(self.class.new(css))
}
set
else
Set.new(classify(&func).values)
end
end
InspectKey = :__inspect_key__ # :nodoc:
# Returns a string containing a human-readable representation of the
# set. ("#<Set: {element1, element2, ...}>")
def inspect
ids = (Thread.current[InspectKey] ||= [])
if ids.include?(object_id)
return sprintf('#<%s: {...}>', self.class.name)
end
begin
ids << object_id
return sprintf('#<%s: {%s}>', self.class, to_a.inspect[1..-2])
ensure
ids.pop
end
end
def pretty_print(pp) # :nodoc:
pp.text sprintf('#<%s: {', self.class.name)
pp.nest(1) {
pp.seplist(self) { |o|
pp.pp o
}
}
pp.text "}>"
end
def pretty_print_cycle(pp) # :nodoc:
pp.text sprintf('#<%s: {%s}>', self.class.name, empty? ? '' : '...')
end
end
# SortedSet implements a set which elements are sorted in order. See Set.
class SortedSet < Set
@@setup = false
class << self
def [](*ary) # :nodoc:
new(ary)
end
def setup # :nodoc:
@@setup and return
begin
require 'rbtree'
module_eval %{
def initialize(*args, &block)
@hash = RBTree.new
super
end
}
rescue LoadError
module_eval %{
def initialize(*args, &block)
@keys = nil
super
end
def clear
@keys = nil
super
end
def replace(enum)
@keys = nil
super
end
def add(o)
@keys = nil
@hash[o] = true
self
end
alias << add
def delete(o)
@keys = nil
@hash.delete(o)
self
end
def delete_if
n = @hash.size
@hash.delete_if { |o,| yield(o) }
@keys = nil if @hash.size != n
self
end
def merge(enum)
@keys = nil
super
end
def each
to_a.each { |o| yield(o) }
end
def to_a
(@keys = @hash.keys).sort! unless @keys
@keys
end
}
end
@@setup = true
end
end
def initialize(*args, &block) # :nodoc:
SortedSet.setup
initialize(*args, &block)
end
end
module Enumerable
# Makes a set from the enumerable object with given arguments.
def to_set(klass = Set, *args, &block)
klass.new(self, *args, &block)
end
end
# =begin
# == RestricedSet class
# RestricedSet implements a set with restrictions defined by a given
# block.
#
# === Super class
# Set
#
# === Class Methods
# --- RestricedSet::new(enum = nil) { |o| ... }
# --- RestricedSet::new(enum = nil) { |rset, o| ... }
# Creates a new restricted set containing the elements of the given
# enumerable object. Restrictions are defined by the given block.
#
# If the block's arity is 2, it is called with the RestrictedSet
# itself and an object to see if the object is allowed to be put in
# the set.
#
# Otherwise, the block is called with an object to see if the object
# is allowed to be put in the set.
#
# === Instance Methods
# --- restriction_proc
# Returns the restriction procedure of the set.
#
# =end
#
# class RestricedSet < Set
# def initialize(*args, &block)
# @proc = block or raise ArgumentError, "missing a block"
#
# if @proc.arity == 2
# instance_eval %{
# def add(o)
# @hash[o] = true if @proc.call(self, o)
# self
# end
# alias << add
#
# def add?(o)
# if include?(o) || !@proc.call(self, o)
# nil
# else
# @hash[o] = true
# self
# end
# end
#
# def replace(enum)
# enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
# clear
# enum.each { |o| add(o) }
#
# self
# end
#
# def merge(enum)
# enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable"
# enum.each { |o| add(o) }
#
# self
# end
# }
# else
# instance_eval %{
# def add(o)
# if @proc.call(o)
# @hash[o] = true
# end
# self
# end
# alias << add
#
# def add?(o)
# if include?(o) || !@proc.call(o)
# nil
# else
# @hash[o] = true
# self
# end
# end
# }
# end
#
# super(*args)
# end
#
# def restriction_proc
# @proc
# end
# end
if $0 == __FILE__
eval DATA.read, nil, $0, __LINE__+4
end
# = rweb - CGI Support Library
#
# Author:: Johannes Barre (mailto:rweb@igels.net)
# Copyright:: Copyright (c) 2003, 04 by Johannes Barre
# License:: GNU Lesser General Public License (COPYING, http://www.gnu.org/copyleft/lesser.html)
# Version:: 0.1.0
# CVS-ID:: $Id: example.rb 39 2005-11-05 03:33:55Z murphy $
#
# == What is Rweb?
# Rweb is a replacement for the cgi class included in the ruby distribution.
#
# == How to use
#
# === Basics
#
# This class is made to be as easy as possible to use. An example:
#
# require "rweb"
#
# web = Rweb.new
# web.out do
# web.puts "Hello world!"
# end
#
# The visitor will get a simple "Hello World!" in his browser. Please notice,
# that won't set html-tags for you, so you should better do something like this:
#
# require "rweb"
#
# web = Rweb.new
# web.out do
# web.puts "<html><body>Hello world!</body></html>"
# end
#
# === Set headers
# Of course, it's also possible to tell the browser, that the content of this
# page is plain text instead of html code:
#
# require "rweb"
#
# web = Rweb.new
# web.out do
# web.header("content-type: text/plain")
# web.puts "Hello plain world!"
# end
#
# Please remember, headers can't be set after the page content has been send.
# You have to set all nessessary headers before the first puts oder print. It's
# possible to cache the content until everything is complete. Doing it this
# way, you can set headers everywhere.
#
# If you set a header twice, the second header will replace the first one. The
# header name is not casesensitive, it will allways converted in to the
# capitalised form suggested by the w3c (http://w3.org)
#
# === Set cookies
# Setting cookies is quite easy:
# include 'rweb'
#
# web = Rweb.new
# Cookie.new("Visits", web.cookies['visits'].to_i +1)
# web.out do
# web.puts "Welcome back! You visited this page #{web.cookies['visits'].to_i +1} times"
# end
#
# See the class Cookie for more details.
#
# === Get form and cookie values
# There are four ways to submit data from the browser to the server and your
# ruby script: via GET, POST, cookies and file upload. Rweb doesn't support
# file upload by now.
#
# include 'rweb'
#
# web = Rweb.new
# web.out do
# web.print "action: #{web.get['action']} "
# web.puts "The value of the cookie 'visits' is #{web.cookies['visits']}"
# web.puts "The post parameter 'test['x']' is #{web.post['test']['x']}"
# end
RWEB_VERSION = "0.1.0"
RWEB = "rweb/#{RWEB_VERSION}"
#require 'rwebcookie' -> edit by bunny :-)
class Rweb
# All parameter submitted via the GET method are available in attribute
# get. This is Hash, where every parameter is available as a key-value
# pair.
#
# If your input tag has a name like this one, it's value will be available
# as web.get["fieldname"]
# <input name="fieldname">
# You can submit values as a Hash
# <input name="text['index']">
# <input name="text['index2']">
# will be available as
# web.get["text"]["index"]
# web.get["text"]["index2"]
# Integers are also possible
# <input name="int[2]">
# <input name="int[3]['hi']>
# will be available as
# web.get["int"][2]
# web.get["int"][3]["hi"]
# If you specify no index, the lowest unused index will be used:
# <input name="int[]"><!-- First Field -->
# <input name="int[]"><!-- Second one -->
# will be available as
# web.get["int"][0] # First Field
# web.get["int"][1] # Second one
# Please notice, this doesn'd work like you might expect:
# <input name="text[index]">
# It will not be available as web.get["text"]["index"] but
# web.get["text[index]"]
attr_reader :get
# All parameters submitted via POST are available in the attribute post. It
# works like the get attribute.
# <input name="text[0]">
# will be available as
# web.post["text"][0]
attr_reader :post
# All cookies submitted by the browser are available in cookies. This is a
# Hash, where every cookie is a key-value pair.
attr_reader :cookies
# The name of the browser identification is submitted as USER_AGENT and
# available in this attribute.
attr_reader :user_agent
# The IP address of the client.
attr_reader :remote_addr
# Creates a new Rweb object. This should only done once. You can set various
# options via the settings hash.
#
# "cache" => true: Everything you script send to the client will be cached
# until the end of the out block or until flush is called. This way, you
# can modify headers and cookies even after printing something to the client.
#
# "safe" => level: Changes the $SAFE attribute. By default, $SAFE will be set
# to 1. If $SAFE is already higher than this value, it won't be changed.
#
# "silend" => true: Normaly, Rweb adds automaticly a header like this
# "X-Powered-By: Rweb/x.x.x (Ruby/y.y.y)". With the silend option you can
# suppress this.
def initialize (settings = {})
# {{{
@header = {}
@cookies = {}
@get = {}
@post = {}
# Internal attributes
@status = nil
@reasonPhrase = nil
@setcookies = []
@output_started = false;
@output_allowed = false;
@mod_ruby = false
@env = ENV.to_hash
if defined?(MOD_RUBY)
@output_method = "mod_ruby"
@mod_ruby = true
elsif @env['SERVER_SOFTWARE'] =~ /^Microsoft-IIS/i
@output_method = "nph"
else
@output_method = "ph"
end
unless settings.is_a?(Hash)
raise TypeError, "settings must be a Hash"
end
@settings = settings
unless @settings.has_key?("safe")
@settings["safe"] = 1
end
if $SAFE < @settings["safe"]
$SAFE = @settings["safe"]
end
unless @settings.has_key?("cache")
@settings["cache"] = false
end
# mod_ruby sets no QUERY_STRING variable, if no GET-Parameters are given
unless @env.has_key?("QUERY_STRING")
@env["QUERY_STRING"] = ""
end
# Now we split the QUERY_STRING by the seperators & and ; or, if
# specified, settings['get seperator']
unless @settings.has_key?("get seperator")
get_args = @env['QUERY_STRING'].split(/[&;]/)
else
get_args = @env['QUERY_STRING'].split(@settings['get seperator'])
end
get_args.each do | arg |
arg_key, arg_val = arg.split(/=/, 2)
arg_key = Rweb::unescape(arg_key)
arg_val = Rweb::unescape(arg_val)
# Parse names like name[0], name['text'] or name[]
pattern = /^(.+)\[("[^\]]*"|'[^\]]*'|[0-9]*)\]$/
keys = []
while match = pattern.match(arg_key)
arg_key = match[1]
keys = [match[2]] + keys
end
keys = [arg_key] + keys
akt = @get
last = nil
lastkey = nil
keys.each do |key|
if key == ""
# No key specified (like in "test[]"), so we use the
# lowerst unused Integer as key
key = 0
while akt.has_key?(key)
key += 1
end
elsif /^[0-9]*$/ =~ key
# If the index is numerical convert it to an Integer
key = key.to_i
elsif key[0].chr == "'" || key[0].chr == '"'
key = key[1, key.length() -2]
end
if !akt.has_key?(key) || !akt[key].class == Hash
# create an empty Hash if there isn't already one
akt[key] = {}
end
last = akt
lastkey = key
akt = akt[key]
end
last[lastkey] = arg_val
end
if @env['REQUEST_METHOD'] == "POST"
if @env.has_key?("CONTENT_TYPE") && @env['CONTENT_TYPE'] == "application/x-www-form-urlencoded" && @env.has_key?('CONTENT_LENGTH')
unless @settings.has_key?("post seperator")
post_args = $stdin.read(@env['CONTENT_LENGTH'].to_i).split(/[&;]/)
else
post_args = $stdin.read(@env['CONTENT_LENGTH'].to_i).split(@settings['post seperator'])
end
post_args.each do | arg |
arg_key, arg_val = arg.split(/=/, 2)
arg_key = Rweb::unescape(arg_key)
arg_val = Rweb::unescape(arg_val)
# Parse names like name[0], name['text'] or name[]
pattern = /^(.+)\[("[^\]]*"|'[^\]]*'|[0-9]*)\]$/
keys = []
while match = pattern.match(arg_key)
arg_key = match[1]
keys = [match[2]] + keys
end
keys = [arg_key] + keys
akt = @post
last = nil
lastkey = nil
keys.each do |key|
if key == ""
# No key specified (like in "test[]"), so we use
# the lowerst unused Integer as key
key = 0
while akt.has_key?(key)
key += 1
end
elsif /^[0-9]*$/ =~ key
# If the index is numerical convert it to an Integer
key = key.to_i
elsif key[0].chr == "'" || key[0].chr == '"'
key = key[1, key.length() -2]
end
if !akt.has_key?(key) || !akt[key].class == Hash
# create an empty Hash if there isn't already one
akt[key] = {}
end
last = akt
lastkey = key
akt = akt[key]
end
last[lastkey] = arg_val
end
else
# Maybe we should print a warning here?
$stderr.print("Unidentified form data recived and discarded.")
end
end
if @env.has_key?("HTTP_COOKIE")
cookie = @env['HTTP_COOKIE'].split(/; ?/)
cookie.each do | c |
cookie_key, cookie_val = c.split(/=/, 2)
@cookies [Rweb::unescape(cookie_key)] = Rweb::unescape(cookie_val)
end
end
if defined?(@env['HTTP_USER_AGENT'])
@user_agent = @env['HTTP_USER_AGENT']
else
@user_agent = nil;
end
if defined?(@env['REMOTE_ADDR'])
@remote_addr = @env['REMOTE_ADDR']
else
@remote_addr = nil
end
# }}}
end
# Prints a String to the client. If caching is enabled, the String will
# buffered until the end of the out block ends.
def print(str = "")
# {{{
unless @output_allowed
raise "You just can write to output inside of a Rweb::out-block"
end
if @settings["cache"]
@buffer += [str.to_s]
else
unless @output_started
sendHeaders
end
$stdout.print(str)
end
nil
# }}}
end
# Prints a String to the client and adds a line break at the end. Please
# remember, that a line break is not visible in HTML, use the <br> HTML-Tag
# for this. If caching is enabled, the String will buffered until the end
# of the out block ends.
def puts(str = "")
# {{{
self.print(str + "\n")
# }}}
end
# Alias to print.
def write(str = "")
# {{{
self.print(str)
# }}}
end
# If caching is enabled, all cached data are send to the cliend and the
# cache emptied.
def flush
# {{{
unless @output_allowed
raise "You can't use flush outside of a Rweb::out-block"
end
buffer = @buffer.join
unless @output_started
sendHeaders
end
$stdout.print(buffer)
@buffer = []
# }}}
end
# Sends one or more header to the client. All headers are cached just
# before body data are send to the client. If the same header are set
# twice, only the last value is send.
#
# Example:
# web.header("Last-Modified: Mon, 16 Feb 2004 20:15:41 GMT")
# web.header("Location: http://www.ruby-lang.org")
#
# You can specify more than one header at the time by doing something like
# this:
# web.header("Content-Type: text/plain\nContent-Length: 383")
# or
# web.header(["Content-Type: text/plain", "Content-Length: 383"])
def header(str)
# {{{
if @output_started
raise "HTTP-Headers are already send. You can't change them after output has started!"
end
unless @output_allowed
raise "You just can set headers inside of a Rweb::out-block"
end
if str.is_a?Array
str.each do | value |
self.header(value)
end
elsif str.split(/\n/).length > 1
str.split(/\n/).each do | value |
self.header(value)
end
elsif str.is_a? String
str.gsub!(/\r/, "")
if (str =~ /^HTTP\/1\.[01] [0-9]{3} ?.*$/) == 0
pattern = /^HTTP\/1.[01] ([0-9]{3}) ?(.*)$/
result = pattern.match(str)
self.setstatus(result[0], result[1])
elsif (str =~ /^status: [0-9]{3} ?.*$/i) == 0
pattern = /^status: ([0-9]{3}) ?(.*)$/i
result = pattern.match(str)
self.setstatus(result[0], result[1])
else
a = str.split(/: ?/, 2)
@header[a[0].downcase] = a[1]
end
end
# }}}
end
# Changes the status of this page. There are several codes like "200 OK",
# "302 Found", "404 Not Found" or "500 Internal Server Error". A list of
# all codes is available at
# http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10
#
# You can just send the code number, the reason phrase will be added
# automaticly with the recommendations from the w3c if not specified. If
# you set the status twice or more, only the last status will be send.
# Examples:
# web.status("401 Unauthorized")
# web.status("410 Sad but true, this lonely page is gone :(")
# web.status(206)
# web.status("400")
#
# The default status is "200 OK". If a "Location" header is set, the
# default status is "302 Found".
def status(str)
# {{{
if @output_started
raise "HTTP-Headers are already send. You can't change them after output has started!"
end
unless @output_allowed
raise "You just can set headers inside of a Rweb::out-block"
end
if str.is_a?Integer
@status = str
elsif str.is_a?String
p1 = /^([0-9]{3}) ?(.*)$/
p2 = /^HTTP\/1\.[01] ([0-9]{3}) ?(.*)$/
p3 = /^status: ([0-9]{3}) ?(.*)$/i
if (a = p1.match(str)) == nil
if (a = p2.match(str)) == nil
if (a = p3.match(str)) == nil
raise ArgumentError, "Invalid argument", caller
end
end
end
@status = a[1].to_i
if a[2] != ""
@reasonPhrase = a[2]
else
@reasonPhrase = getReasonPhrase(@status)
end
else
raise ArgumentError, "Argument of setstatus must be integer or string", caller
end
# }}}
end
# Handles the output of your content and rescues all exceptions. Send all
# data in the block to this method. For example:
# web.out do
# web.header("Content-Type: text/plain")
# web.puts("Hello, plain world!")
# end
def out
# {{{
@output_allowed = true
@buffer = []; # We use an array as buffer, because it's more performant :)
begin
yield
rescue Exception => exception
$stderr.puts "Ruby exception rescued (#{exception.class}): #{exception.message}"
$stderr.puts exception.backtrace.join("\n")
unless @output_started
self.setstatus(500)
@header = {}
end
unless (@settings.has_key?("hide errors") and @settings["hide errors"] == true)
unless @output_started
self.header("Content-Type: text/html")
self.puts "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Strict//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">"
self.puts "<html>"
self.puts "<head>"
self.puts "<title>500 Internal Server Error</title>"
self.puts "</head>"
self.puts "<body>"
end
if @header.has_key?("content-type") and (@header["content-type"] =~ /^text\/html/i) == 0
self.puts "<h1>Internal Server Error</h1>"
self.puts "<p>The server encountered an exception and was unable to complete your request.</p>"
self.puts "<p>The exception has provided the following information:</p>"
self.puts "<pre style=\"background: #FFCCCC; border: black solid 2px; margin-left: 2cm; margin-right: 2cm; padding: 2mm;\"><b>#{exception.class}</b>: #{exception.message} <b>on</b>"
self.puts
self.puts "#{exception.backtrace.join("\n")}</pre>"
self.puts "</body>"
self.puts "</html>"
else
self.puts "The server encountered an exception and was unable to complete your request"
self.puts "The exception has provided the following information:"
self.puts "#{exception.class}: #{exception.message}"
self.puts
self.puts exception.backtrace.join("\n")
end
end
end
if @settings["cache"]
buffer = @buffer.join
unless @output_started
unless @header.has_key?("content-length")
self.header("content-length: #{buffer.length}")
end
sendHeaders
end
$stdout.print(buffer)
elsif !@output_started
sendHeaders
end
@output_allowed = false;
# }}}
end
# Decodes URL encoded data, %20 for example stands for a space.
def Rweb.unescape(str)
# {{{
if defined? str and str.is_a? String
str.gsub!(/\+/, " ")
str.gsub(/%.{2}/) do | s |
s[1,2].hex.chr
end
end
# }}}
end
protected
def sendHeaders
# {{{
Cookie.disallow # no more cookies can be set or modified
if !(@settings.has_key?("silent") and @settings["silent"] == true) and !@header.has_key?("x-powered-by")
if @mod_ruby
header("x-powered-by: #{RWEB} (Ruby/#{RUBY_VERSION}, #{MOD_RUBY})");
else
header("x-powered-by: #{RWEB} (Ruby/#{RUBY_VERSION})");
end
end
if @output_method == "ph"
if ((@status == nil or @status == 200) and !@header.has_key?("content-type") and !@header.has_key?("location"))
header("content-type: text/html")
end
if @status != nil
$stdout.print "Status: #{@status} #{@reasonPhrase}\r\n"
end
@header.each do |key, value|
key = key *1 # "unfreeze" key :)
key[0] = key[0,1].upcase![0]
key = key.gsub(/-[a-z]/) do |char|
"-" + char[1,1].upcase
end
$stdout.print "#{key}: #{value}\r\n"
end
cookies = Cookie.getHttpHeader # Get all cookies as an HTTP Header
if cookies
$stdout.print cookies
end
$stdout.print "\r\n"
elsif @output_method == "nph"
elsif @output_method == "mod_ruby"
r = Apache.request
if ((@status == nil or @status == 200) and !@header.has_key?("content-type") and !@header.has_key?("location"))
header("text/html")
end
if @status != nil
r.status_line = "#{@status} #{@reasonPhrase}"
end
r.send_http_header
@header.each do |key, value|
key = key *1 # "unfreeze" key :)
key[0] = key[0,1].upcase![0]
key = key.gsub(/-[a-z]/) do |char|
"-" + char[1,1].upcase
end
puts "#{key}: #{value.class}"
#r.headers_out[key] = value
end
end
@output_started = true
# }}}
end
def getReasonPhrase (status)
# {{{
if status == 100
"Continue"
elsif status == 101
"Switching Protocols"
elsif status == 200
"OK"
elsif status == 201
"Created"
elsif status == 202
"Accepted"
elsif status == 203
"Non-Authoritative Information"
elsif status == 204
"No Content"
elsif status == 205
"Reset Content"
elsif status == 206
"Partial Content"
elsif status == 300
"Multiple Choices"
elsif status == 301
"Moved Permanently"
elsif status == 302
"Found"
elsif status == 303
"See Other"
elsif status == 304
"Not Modified"
elsif status == 305
"Use Proxy"
elsif status == 307
"Temporary Redirect"
elsif status == 400
"Bad Request"
elsif status == 401
"Unauthorized"
elsif status == 402
"Payment Required"
elsif status == 403
"Forbidden"
elsif status == 404
"Not Found"
elsif status == 405
"Method Not Allowed"
elsif status == 406
"Not Acceptable"
elsif status == 407
"Proxy Authentication Required"
elsif status == 408
"Request Time-out"
elsif status == 409
"Conflict"
elsif status == 410
"Gone"
elsif status == 411
"Length Required"
elsif status == 412
"Precondition Failed"
elsif status == 413
"Request Entity Too Large"
elsif status == 414
"Request-URI Too Large"
elsif status == 415
"Unsupported Media Type"
elsif status == 416
"Requested range not satisfiable"
elsif status == 417
"Expectation Failed"
elsif status == 500
"Internal Server Error"
elsif status == 501
"Not Implemented"
elsif status == 502
"Bad Gateway"
elsif status == 503
"Service Unavailable"
elsif status == 504
"Gateway Time-out"
elsif status == 505
"HTTP Version not supported"
else
raise "Unknown Statuscode. See http://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html#sec6.1 for more information."
end
# }}}
end
end
class Cookie
attr_reader :name, :value, :maxage, :path, :domain, :secure, :comment
# Sets a cookie. Please see below for details of the attributes.
def initialize (name, value = nil, maxage = nil, path = nil, domain = nil, secure = false)
# {{{
# HTTP headers (Cookies are a HTTP header) can only set, while no content
# is send. So an exception will be raised, when @@allowed is set to false
# and a new cookie has set.
unless defined?(@@allowed)
@@allowed = true
end
unless @@allowed
raise "You can't set cookies after the HTTP headers are send."
end
unless defined?(@@list)
@@list = []
end
@@list += [self]
unless defined?(@@type)
@@type = "netscape"
end
unless name.class == String
raise TypeError, "The name of a cookie must be a string", caller
end
if value.class.superclass == Integer || value.class == Float
value = value.to_s
elsif value.class != String && value != nil
raise TypeError, "The value of a cookie must be a string, integer, float or nil", caller
end
if maxage.class == Time
maxage = maxage - Time.now
elsif !maxage.class.superclass == Integer || !maxage == nil
raise TypeError, "The maxage date of a cookie must be an Integer or Time object or nil.", caller
end
unless path.class == String || path == nil
raise TypeError, "The path of a cookie must be nil or a string", caller
end
unless domain.class == String || domain == nil
raise TypeError, "The value of a cookie must be nil or a string", caller
end
unless secure == true || secure == false
raise TypeError, "The secure field of a cookie must be true or false", caller
end
@name, @value, @maxage, @path, @domain, @secure = name, value, maxage, path, domain, secure
@comment = nil
# }}}
end
# Modifies the value of this cookie. The information you want to store. If the
# value is nil, the cookie will be deleted by the client.
#
# This attribute can be a String, Integer or Float object or nil.
def value=(value)
# {{{
if value.class.superclass == Integer || value.class == Float
value = value.to_s
elsif value.class != String && value != nil
raise TypeError, "The value of a cookie must be a string, integer, float or nil", caller
end
@value = value
# }}}
end
# Modifies the maxage of this cookie. This attribute defines the lifetime of
# the cookie, in seconds. A value of 0 means the cookie should be discarded
# imediatly. If it set to nil, the cookie will be deleted when the browser
# will be closed.
#
# Attention: This is different from other implementations like PHP, where you
# gives the seconds since 1/1/1970 0:00:00 GMT.
#
# This attribute must be an Integer or Time object or nil.
def maxage=(maxage)
# {{{
if maxage.class == Time
maxage = maxage - Time.now
elsif maxage.class.superclass == Integer || !maxage == nil
raise TypeError, "The maxage of a cookie must be an Interger or Time object or nil.", caller
end
@maxage = maxage
# }}}
end
# Modifies the path value of this cookie. The client will send this cookie
# only, if the requested document is this directory or a subdirectory of it.
#
# The value of the attribute must be a String object or nil.
def path=(path)
# {{{
unless path.class == String || path == nil
raise TypeError, "The path of a cookie must be nil or a string", caller
end
@path = path
# }}}
end
# Modifies the domain value of this cookie. The client will send this cookie
# only if it's connected with this domain (or a subdomain, if the first
# character is a dot like in ".ruby-lang.org")
#
# The value of this attribute must be a String or nil.
def domain=(domain)
# {{{
unless domain.class == String || domain == nil
raise TypeError, "The domain of a cookie must be a String or nil.", caller
end
@domain = domain
# }}}
end
# Modifies the secure flag of this cookie. If it's true, the client will only
# send this cookie if it is secured connected with us.
#
# The value od this attribute has to be true or false.
def secure=(secure)
# {{{
unless secure == true || secure == false
raise TypeError, "The secure field of a cookie must be true or false", caller
end
@secure = secure
# }}}
end
# Modifies the comment value of this cookie. The comment won't be send, if
# type is "netscape".
def comment=(comment)
# {{{
unless comment.class == String || comment == nil
raise TypeError, "The comment of a cookie must be a string or nil", caller
end
@comment = comment
# }}}
end
# Changes the type of all cookies.
# Allowed values are RFC2109 and netscape (default).
def Cookie.type=(type)
# {{{
unless @@allowed
raise "The cookies are allready send, so you can't change the type anymore."
end
unless type.downcase == "rfc2109" && type.downcase == "netscape"
raise "The type of the cookies must be \"RFC2109\" or \"netscape\"."
end
@@type = type;
# }}}
end
# After sending this message, no cookies can be set or modified. Use it, when
# HTTP-Headers are send. Rweb does this for you.
def Cookie.disallow
# {{{
@@allowed = false
true
# }}}
end
# Returns a HTTP header (type String) with all cookies. Rweb does this for
# you.
def Cookie.getHttpHeader
# {{{
if defined?(@@list)
if @@type == "netscape"
str = ""
@@list.each do |cookie|
if cookie.value == nil
cookie.maxage = 0
cookie.value = ""
end
# TODO: Name and value should be escaped!
str += "Set-Cookie: #{cookie.name}=#{cookie.value}"
unless cookie.maxage == nil
expire = Time.now + cookie.maxage
expire.gmtime
str += "; Expire=#{expire.strftime("%a, %d-%b-%Y %H:%M:%S %Z")}"
end
unless cookie.domain == nil
str += "; Domain=#{cookie.domain}"
end
unless cookie.path == nil
str += "; Path=#{cookie.path}"
end
if cookie.secure
str += "; Secure"
end
str += "\r\n"
end
return str
else # type == "RFC2109"
str = "Set-Cookie: "
comma = false;
@@list.each do |cookie|
if cookie.value == nil
cookie.maxage = 0
cookie.value = ""
end
if comma
str += ","
end
comma = true
str += "#{cookie.name}=\"#{cookie.value}\""
unless cookie.maxage == nil
str += "; Max-Age=\"#{cookie.maxage}\""
end
unless cookie.domain == nil
str += "; Domain=\"#{cookie.domain}\""
end
unless cookie.path == nil
str += "; Path=\"#{cookie.path}\""
end
if cookie.secure
str += "; Secure"
end
unless cookie.comment == nil
str += "; Comment=\"#{cookie.comment}\""
end
str += "; Version=\"1\""
end
str
end
else
false
end
# }}}
end
end
require 'strscan'
module BBCode
DEBUG = true
use 'encoder', 'tags', 'tagstack', 'smileys'
=begin
The Parser class takes care of the encoding.
It scans the given BBCode (as plain text), finds tags
and smilies and also makes links of urls in text.
Normal text is send directly to the encoder.
If a tag was found, an instance of a Tag subclass is created
to handle the case.
The @tagstack manages tag nesting and ensures valid HTML.
=end
class Parser
class Attribute
# flatten and use only one empty_arg
def self.create attr
attr = flatten attr
return @@empty_attr if attr.empty?
new attr
end
private_class_method :new
# remove leading and trailing whitespace; concat lines
def self.flatten attr
attr.strip.gsub(/\n/, ' ')
# -> ^ and $ can only match at begin and end now
end
ATTRIBUTE_SCAN = /
(?!$) # don't match at end
\s*
( # $1 = key
[^=\s\]"\\]*
(?:
(?: \\. | "[^"\\]*(?:\\.[^"\\]*)*"? )
[^=\s\]"\\]*
)*
)
(?:
=
( # $2 = value
[^\s\]"\\]*
(?:
(?: \\. | "[^"\\]*(?:\\.[^"\\]*)*"? )
[^\s\]"\\]*
)*
)?
)?
\s*
/x
def self.parse source
source = source.dup
# empty_tag: the tag looks like [... /]
# slice!: this deletes the \s*/] at the end
# \s+ because [url=http://rubybb.org/forum/] is NOT an empty tag.
# In RubyBBCode, you can use [url=http://rubybb.org/forum/ /], and this has to be
# interpreted correctly.
empty_tag = source.sub!(/^:/, '=') or source.slice!(/\/$/)
debug 'PARSE: ' + source.inspect + ' => ' + empty_tag.inspect
#-> we have now an attr that's EITHER empty OR begins and ends with non-whitespace.
attr = Hash.new
attr[:flags] = []
source.scan(ATTRIBUTE_SCAN) { |key, value|
if not value
attr[:flags] << unescape(key)
else
next if value.empty? and key.empty?
attr[unescape(key)] = unescape(value)
end
}
debug attr.inspect
return empty_tag, attr
end
def self.unescape_char esc
esc[1]
end
def self.unquote qt
qt[1..-1].chomp('"').gsub(/\\./) { |esc| unescape_char esc }
end
def self.unescape str
str.gsub(/ (\\.) | (" [^"\\]* (?:\\.[^"\\]*)* "?) /x) {
if $1
unescape_char $1
else
unquote $2
end
}
end
include Enumerable
def each &block
@args.each(&block)
end
attr_reader :source, :args, :value
def initialize source
@source = source
debug 'Attribute#new(%p)' % source
@empty_tag, @attr = Attribute.parse source
@value = @attr[''].to_s
end
def empty?
self == @@empty_attr
end
def empty_tag?
@empty_tag
end
def [] *keys
res = @attr[*keys]
end
def flags
attr[:flags]
end
def to_s
@attr
end
def inspect
'ATTR[' + @attr.inspect + (@empty_tag ? ' | empty tag' : '') + ']'
end
end
class Attribute
@@empty_attr = new ''
end
end
|