Merge pull request #1335 from github/1318-local

1318 local

.travis.yml

@@ -1,4 +1,6 @@
 before_install: 
+  - git fetch origin master:master
+  - git fetch origin v2.0.0:v2.0.0
   - sudo apt-get install libicu-dev -y
   - gem update --system 2.1.11
 rvm:

README.md

@@ -143,8 +143,8 @@ If you are the current maintainer of this gem:
  0. Make sure your local dependencies are up to date: `bundle install`
  0. Ensure that samples are updated: `bundle exec rake samples`
  0. Ensure that tests are green: `bundle exec rake test`
- 0. Bump gem version in github-linguist.gemspec.  For example, [like this](https://github.com/github/linguist/commit/97908204a385940e47251af9ecb689e8f6515c48).
- 0. Make a PR to github/linguist.  For example, [#1075](https://github.com/github/linguist/pull/1075).
+ 0. Bump gem version in `lib/linguist/version.rb`.  For example, [like this](https://github.com/github/linguist/commit/8d2ea90a5ba3b2fe6e1508b7155aa4632eea2985).
+ 0. Make a PR to github/linguist.  For example, [#1238](https://github.com/github/linguist/pull/1238).
  0. Build a local gem: `gem build github-linguist.gemspec`
  0. Testing:
    0. Bump the Gemfile and Gemfile.lock versions for an app which relies on this gem

bin/linguist

@@ -5,6 +5,7 @@
 
 require 'linguist/file_blob'
 require 'linguist/repository'
+require 'rugged'
 
 path = ARGV[0] || Dir.pwd
 
@@ -18,7 +19,8 @@ ARGV.shift
 breakdown = true if ARGV[0] == "--breakdown"
 
 if File.directory?(path)
-  repo = Linguist::Repository.from_directory(path)
+  rugged = Rugged::Repository.new(path)
+  repo = Linguist::Repository.new(rugged, rugged.head.target_id)
   repo.languages.sort_by { |_, size| size }.reverse.each do |language, size|
     percentage = ((size / repo.size.to_f) * 100)
     percentage = sprintf '%.2f' % percentage

github-linguist.gemspec

@@ -13,10 +13,11 @@ Gem::Specification.new do |s|
   s.files = Dir['lib/**/*']
   s.executables << 'linguist'
 
-  s.add_dependency 'charlock_holmes', '~> 0.7.1'
+  s.add_dependency 'charlock_holmes', '~> 0.7.3'
   s.add_dependency 'escape_utils',    '~> 1.0.1'
   s.add_dependency 'mime-types',      '~> 1.19'
-  s.add_dependency 'pygments.rb',     '~> 0.5.4'
+  s.add_dependency 'pygments.rb',     '~> 0.6.0'
+  s.add_dependency 'rugged',          '~> 0.21.0'
 
   s.add_development_dependency 'json'
   s.add_development_dependency 'mocha'

lib/linguist/blob_helper.rb

@@ -112,6 +112,12 @@ module Linguist
       end
     end
 
+    def ruby_encoding
+      if hash = detect_encoding
+        hash[:ruby_encoding]
+      end
+    end
+
     # Try to guess the encoding
     #
     # Returns: a Hash, with :encoding, :confidence, :type
@@ -241,7 +247,31 @@ module Linguist
     def lines
       @lines ||=
         if viewable? && data
-          data.split(/\r\n|\r|\n/, -1)
+          # `data` is usually encoded as ASCII-8BIT even when the content has
+          # been detected as a different encoding. However, we are not allowed
+          # to change the encoding of `data` because we've made the implicit
+          # guarantee that each entry in `lines` is encoded the same way as
+          # `data`.
+          #
+          # Instead, we re-encode each possible newline sequence as the
+          # detected encoding, then force them back to the encoding of `data`
+          # (usually a binary encoding like ASCII-8BIT). This means that the
+          # byte sequence will match how newlines are likely encoded in the
+          # file, but we don't have to change the encoding of `data` as far as
+          # Ruby is concerned. This allows us to correctly parse out each line
+          # without changing the encoding of `data`, and
+          # also--importantly--without having to duplicate many (potentially
+          # large) strings.
+          begin
+            encoded_newlines = ["\r\n", "\r", "\n"].
+              map { |nl| nl.encode(ruby_encoding, "ASCII-8BIT").force_encoding(data.encoding) }
+
+            data.split(Regexp.union(encoded_newlines), -1)
+          rescue Encoding::ConverterNotFoundError
+            # The data is not splittable in the detected encoding.  Assume it's
+            # one big line.
+            [data]
+          end
         else
           []
         end
@@ -283,15 +313,7 @@ module Linguist
     #
     # Returns a Language or nil if none is detected
     def language
-      return @language if defined? @language
-
-      if defined?(@data) && @data.is_a?(String)
-        data = @data
-      else
-        data = lambda { (binary_mime_type? || binary?) ? "" : self.data }
-      end
-
-      @language = Language.detect(name.to_s, data, mode)
+      @language ||= Language.detect(self)
     end
 
     # Internal: Get the lexer of the blob.

lib/linguist/generated.rb

@@ -63,7 +63,8 @@ module Linguist
         generated_jni_header? ||
         composer_lock? ||
         node_modules? ||
-        vcr_cassette?
+        vcr_cassette? ||
+        generated_by_zephir?
     end
 
     # Internal: Is the blob an XCode project file?
@@ -237,6 +238,13 @@ module Linguist
       !!name.match(/composer.lock/)
     end
 
+    # Internal: Is the blob a generated by Zephir
+    #
+    # Returns true or false.
+    def generated_by_zephir?
+      !!name.match(/.\.zep\.(?:c|h|php)$/)
+    end
+
     # Is the blob a VCR Cassette file?
     #
     # Returns true or false

lib/linguist/language.rb

@@ -92,18 +92,17 @@ module Linguist
 
     # Public: Detects the Language of the blob.
     #
-    # name - String filename
-    # data - String blob data. A block also maybe passed in for lazy
-    #        loading. This behavior is deprecated and you should always
-    #        pass in a String.
-    # mode - Optional String mode (defaults to nil)
+    # blob - an object that implements the Linguist `Blob` interface;
+    #       see Linguist::LazyBlob and Linguist::FileBlob for examples
     #
     # Returns Language or nil.
-    def self.detect(name, data, mode = nil)
+    def self.detect(blob)
+      name = blob.name.to_s
+
       # A bit of an elegant hack. If the file is executable but extensionless,
       # append a "magic" extension so it can be classified with other
       # languages that have shebang scripts.
-      if File.extname(name).empty? && mode && (mode.to_i(8) & 05) == 05
+      if File.extname(name).empty? && blob.mode && (blob.mode.to_i(8) & 05) == 05
         name += ".script!"
       end
 
@@ -114,7 +113,7 @@ module Linguist
       # extension at all, in the case of extensionless scripts), we need to continue
       # our detection work
       if possible_languages.length > 1
-        data = data.call() if data.respond_to?(:call)
+        data = blob.data
         possible_language_names = possible_languages.map(&:name)
 
         # Don't bother with emptiness

lib/linguist/languages.yml

@@ -157,6 +157,7 @@ Assembly:
   - nasm
   extensions:
   - .asm
+  - .inc
 
 Augeas:
   type: programming
@@ -293,6 +294,7 @@ C++:
   - .inl
   - .tcc
   - .tpp
+  - .ipp
 
 C-ObjDump:
   type: data
@@ -429,6 +431,14 @@ Common Lisp:
   - clisp
   - ecl
 
+Component Pascal:
+  type: programming
+  lexer: Delphi
+  color: "#b0ce4e"
+  extensions:
+  - .cp
+  - .cps
+
 Coq:
   type: programming
   extensions:
@@ -519,15 +529,6 @@ Dart:
   extensions:
   - .dart
 
-DCPU-16 ASM:
-  type: programming
-  lexer: dasm16
-  extensions:
-  - .dasm16
-  - .dasm
-  aliases:
-  - dasm16
-
 Diff:
   extensions:
   - .diff
@@ -705,6 +706,12 @@ Game Maker Language:
   extensions:
   - .gml
 
+GAMS:
+  type: programming
+  lexer: Text only
+  extensions:
+  - .gms
+
 GAP:
   type: programming
   lexer: Text only
@@ -728,12 +735,14 @@ GLSL:
   - .glsl
   - .fp
   - .frag
+  - .frg
   - .fshader
   - .geom
   - .glslv
   - .gshader
   - .shader
   - .vert
+  - .vrx
   - .vshader
 
 Genshi:
@@ -819,6 +828,9 @@ Groovy:
   color: "#e69f56"
   extensions:
   - .groovy
+  - .grt
+  - .gtpl
+  - .gvy
   interpreters:
   - groovy
 
@@ -907,7 +919,7 @@ Haskell:
 Haxe:
   type: programming
   ace_mode: haxe
-  color: "#346d51"
+  color: "#f7941e"
   extensions:
   - .hx
   - .hxsl
@@ -922,7 +934,7 @@ Hy:
 
 IDL:
   type: programming
-  lexer: Text only
+  lexer: IDL
   color: "#e3592c"
   extensions:
   - .pro
@@ -941,7 +953,7 @@ Inno Setup:
 
 Idris:
   type: programming
-  lexer: Text only
+  lexer: Idris
   extensions:
   - .idr
   - .lidr
@@ -980,6 +992,13 @@ Ioke:
   extensions:
   - .ik
 
+Isabelle:
+  type: programming
+  lexer: Text only
+  color: "#fdcd00"
+  extensions:
+  - .thy
+
 J:
   type: programming
   lexer: Text only
@@ -1059,6 +1078,7 @@ JavaScript:
   - ._js
   - .bones
   - .es6
+  - .frag
   - .jake
   - .jsfl
   - .jsm
@@ -1068,6 +1088,8 @@ JavaScript:
   - .pac
   - .sjs
   - .ssjs
+  - .xsjs
+  - .xsjslib
   filenames:
   - Jakefile
   interpreters:
@@ -1250,6 +1272,7 @@ Markdown:
   - .md
   - .markdown
   - .mkd
+  - .mkdn
   - .mkdown
   - .ron
 
@@ -1265,6 +1288,8 @@ Mathematica:
   type: programming
   extensions:
   - .mathematica
+  - .m
+  - .nb
   lexer: Text only
 
 Matlab:
@@ -1372,6 +1397,12 @@ Nimrod:
   - .nim
   - .nimrod
 
+Nix:
+  type: programming
+  lexer: Nix
+  extensions:
+  - .nix
+
 Nu:
   type: programming
   lexer: Scheme
@@ -1471,6 +1502,14 @@ Org:
   extensions:
   - .org
 
+Ox:
+  type: programming
+  lexer: Text only
+  extensions:
+  - .ox
+  - .oxh
+  - .oxo
+
 Oxygene:
   type: programming
   lexer: Text only
@@ -1500,6 +1539,13 @@ PHP:
   filenames:
   - Phakefile
 
+Pan:
+  type: programming
+  lexer: Text only
+  color: '#cc0000'
+  extensions:
+  - .pan
+
 Parrot:
   type: programming
   color: "#f3ca0a"
@@ -1566,7 +1612,7 @@ Perl6:
 Pike:
   type: programming
   color: "#066ab2"
-  lexer: C
+  lexer: Pike
   extensions:
   - .pike
   - .pmod
@@ -1663,6 +1709,7 @@ Python:
   - .gyp
   - .lmi
   - .pyde
+  - .pyp
   - .pyt
   - .pyw
   - .wsgi
@@ -1688,6 +1735,12 @@ QML:
   extensions:
   - .qml
 
+QMake:
+  lexer: Text only
+  extensions:
+  - .pro
+  - .pri
+
 R:
   type: programming
   color: "#198ce7"
@@ -1698,6 +1751,8 @@ R:
   extensions:
   - .r
   - .R
+  - .Rd
+  - .rd
   - .rsx
   filenames:
   - .Rprofile
@@ -1825,12 +1880,15 @@ Ruby:
   interpreters:
   - ruby
   filenames:
+  - .pryrc
   - Appraisals
   - Berksfile
   - Buildfile
   - Gemfile
   - Gemfile.lock
   - Guardfile
+  - Jarfile
+  - Mavenfile
   - Podfile
   - Thorfile
   - Vagrantfile
@@ -1842,6 +1900,13 @@ Rust:
   extensions:
   - .rs
 
+SAS:
+  type: programming
+  color: "#1E90FF"
+  lexer: Text only
+  extensions:
+  - .sas
+
 SCSS:
   type: markup
   group: CSS
@@ -1850,7 +1915,7 @@ SCSS:
   - .scss
 
 SQL:
-  type: programming
+  type: data
   ace_mode: sql
   extensions:
   - .sql
@@ -1859,6 +1924,13 @@ SQL:
   - .udf
   - .viw
 
+STON:
+  type: data
+  group: Smalltalk
+  lexer: JSON
+  extensions:
+  - .ston
+
 Sage:
   type: programming
   lexer: Python
@@ -1951,6 +2023,14 @@ Slash:
   extensions:
   - .sl
 
+Slim:
+  group: HTML
+  type: markup
+  lexer: Slim
+  color: "#ff8877"
+  extensions:
+  - .slim
+
 Smalltalk:
   type: programming
   color: "#596706"
@@ -1981,8 +2061,9 @@ Standard ML:
   aliases:
   - sml
   extensions:
-  - .sml
+  - .ML
   - .fun
+  - .sml
 
 Stata:
   type: programming
@@ -2010,6 +2091,13 @@ SuperCollider:
   extensions:
   - .scd
 
+Swift:
+  type: programming
+  lexer: Swift
+  color: "#ffac45"
+  extensions:
+  - .swift
+
 SystemVerilog:
   type: programming
   color: "#343761"
@@ -2118,6 +2206,14 @@ UnrealScript:
   extensions:
   - .uc
 
+VCL:
+  type: programming
+  lexer: Perl
+  ace_mode: perl
+  color: "#0298c3"
+  extensions:
+  - .vcl
+
 VHDL:
   type: programming
   lexer: vhdl
@@ -2200,6 +2296,7 @@ XML:
   - .clixml
   - .cproject
   - .csproj
+  - .ct
   - .dita
   - .ditamap
   - .ditaval
@@ -2212,6 +2309,7 @@ XML:
   - .launch
   - .mxml
   - .nproj
+  - .nuspec
   - .osm
   - .plist
   - .pluginspec
@@ -2283,6 +2381,17 @@ XSLT:
   - .xslt
   - .xsl
 
+Xojo:
+  type: programming
+  lexer: VB.net
+  extensions:
+  - .xojo_code
+  - .xojo_menu
+  - .xojo_report
+  - .xojo_script
+  - .xojo_toolbar
+  - .xojo_window
+
 Xtend:
   type: programming
   extensions:
@@ -2305,6 +2414,14 @@ Zephir:
   extensions:
   - .zep
 
+Zimpl:
+  type: programming
+  lexer: Text only
+  extensions:
+  - .zimpl
+  - .zmpl
+  - .zpl
+
 eC:
   type: programming
   search_term: ec
@@ -2335,6 +2452,7 @@ mupad:
 nesC:
   type: programming
   color: "#ffce3b"
+  lexer: nesC
   extensions:
   - .nc
 

lib/linguist/lazy_blob.rb

@@ -0,0 +1,37 @@
+require 'linguist/blob_helper'
+require 'rugged'
+
+module Linguist
+  class LazyBlob
+    include BlobHelper
+
+    MAX_SIZE = 128 * 1024
+
+    attr_reader :repository
+    attr_reader :oid
+    attr_reader :name
+    attr_reader :mode
+
+    def initialize(repo, oid, name, mode = nil)
+      @repository = repo
+      @oid = oid
+      @name = name
+      @mode = mode
+    end
+
+    def data
+      load_blob!
+      @data
+    end
+
+    def size
+      load_blob!
+      @size
+    end
+
+    protected
+    def load_blob!
+      @data, @size = Rugged::Blob.to_buffer(repository, oid, MAX_SIZE) if @data.nil?
+    end
+  end
+end

lib/linguist/repository.rb

@@ -1,4 +1,5 @@
-require 'linguist/file_blob'
+require 'linguist/lazy_blob'
+require 'rugged'
 
 module Linguist
   # A Repository is an abstraction of a Grit::Repo or a basic file
@@ -7,100 +8,146 @@ module Linguist
   # Its primary purpose is for gathering language statistics across
   # the entire project.
   class Repository
-    # Public: Initialize a new Repository from a File directory
-    #
-    # base_path - A path String
-    #
-    # Returns a Repository
-    def self.from_directory(base_path)
-      new Dir["#{base_path}/**/*"].
-        select { |f| File.file?(f) }.
-        map { |path| FileBlob.new(path, base_path) }
+    attr_reader :repository
+
+    # Public: Create a new Repository based on the stats of
+    # an existing one
+    def self.incremental(repo, commit_oid, old_commit_oid, old_stats)
+      repo = self.new(repo, commit_oid)
+      repo.load_existing_stats(old_commit_oid, old_stats)
+      repo
     end
 
-    # Public: Initialize a new Repository
+    # Public: Initialize a new Repository to be analyzed for language
+    # data
     #
-    # enum - Enumerator that responds to `each` and
-    #        yields Blob objects
+    # repo - a Rugged::Repository object
+    # commit_oid - the sha1 of the commit that will be analyzed;
+    #              this is usually the master branch
     #
     # Returns a Repository
-    def initialize(enum)
-      @enum = enum
-      @computed_stats = false
-      @language = @size = nil
-      @sizes = Hash.new { 0 }
-      @file_breakdown = Hash.new { |h,k| h[k] = Array.new }
+    def initialize(repo, commit_oid)
+      @repository = repo
+      @commit_oid = commit_oid
+
+      raise TypeError, 'commit_oid must be a commit SHA1' unless commit_oid.is_a?(String)
+    end
+
+    # Public: Load the results of a previous analysis on this repository
+    # to speed up the new scan.
+    #
+    # The new analysis will be performed incrementally as to only take
+    # into account the file changes since the last time the repository
+    # was scanned
+    #
+    # old_commit_oid - the sha1 of the commit that was previously analyzed
+    # old_stats - the result of the previous analysis, obtained by calling
+    #             Repository#cache on the old repository
+    #
+    # Returns nothing
+    def load_existing_stats(old_commit_oid, old_stats)
+      @old_commit_oid = old_commit_oid
+      @old_stats = old_stats
+      nil
     end
 
     # Public: Returns a breakdown of language stats.
     #
     # Examples
     #
-    #   # => { Language['Ruby'] => 46319,
-    #          Language['JavaScript'] => 258 }
+    #   # => { 'Ruby' => 46319,
+    #          'JavaScript' => 258 }
     #
-    # Returns a Hash of Language keys and Integer size values.
+    # Returns a Hash of language names and Integer size values.
     def languages
-      compute_stats
-      @sizes
+      @sizes ||= begin
+        sizes = Hash.new { 0 }
+        cache.each do |_, (language, size)|
+          sizes[language] += size
+        end
+        sizes
+      end
     end
 
     # Public: Get primary Language of repository.
     #
-    # Returns a Language
+    # Returns a language name
     def language
-      compute_stats
-      @language
+      @language ||= begin
+        primary = languages.max_by { |(_, size)| size }
+        primary && primary[0]
+      end
     end
 
     # Public: Get the total size of the repository.
     #
     # Returns a byte size Integer
     def size
-      compute_stats
-      @size
+      @size ||= languages.inject(0) { |s,(_,v)| s + v }
     end
 
     # Public: Return the language breakdown of this repository by file
+    #
+    # Returns a map of language names => [filenames...]
     def breakdown_by_file
-      compute_stats
-      @file_breakdown
+      @file_breakdown ||= begin
+        breakdown = Hash.new { |h,k| h[k] = Array.new }
+        cache.each do |filename, (language, _)|
+          breakdown[language] << filename
+        end
+        breakdown
+      end
     end
 
-    # Internal: Compute language breakdown for each blob in the Repository.
+    # Public: Return the cached results of the analysis
     #
-    # Returns nothing
-    def compute_stats
-      return if @computed_stats
+    # This is a per-file breakdown that can be passed to other instances
+    # of Linguist::Repository to perform incremental scans
+    #
+    # Returns a map of filename => [language, size]
+    def cache
+      @cache ||= begin
+        if @old_commit_oid == @commit_oid
+          @old_stats
+        else
+          compute_stats(@old_commit_oid, @commit_oid, @old_stats)
+        end
+      end
+    end
 
-      @enum.each do |blob|
-        # Skip files that are likely binary
-        next if blob.likely_binary?
+    protected
+    def compute_stats(old_commit_oid, commit_oid, cache = nil)
+      file_map = cache ? cache.dup : {}
+      old_tree = old_commit_oid && Rugged::Commit.lookup(repository, old_commit_oid).tree
+      new_tree = Rugged::Commit.lookup(repository, commit_oid).tree
+
+      diff = Rugged::Tree.diff(repository, old_tree, new_tree)
+
+      diff.each_delta do |delta|
+        old = delta.old_file[:path]
+        new = delta.new_file[:path]
+
+        file_map.delete(old)
+        next if delta.binary
+
+        if [:added, :modified].include? delta.status
+          # Skip submodules
+          mode = delta.new_file[:mode]
+          next if (mode & 040000) != 0
+
+          blob = Linguist::LazyBlob.new(repository, delta.new_file[:oid], new, mode.to_s(8))
 
           # Skip vendored or generated blobs
           next if blob.vendored? || blob.generated? || blob.language.nil?
 
           # Only include programming languages and acceptable markup languages
           if blob.language.type == :programming || Language.detectable_markup.include?(blob.language.name)
-
-          # Build up the per-file breakdown stats
-          @file_breakdown[blob.language.group.name] << blob.name
-
-          @sizes[blob.language.group] += blob.size
+            file_map[new] = [blob.language.group.name, blob.size]
+          end
         end
       end
 
-      # Compute total size
-      @size = @sizes.inject(0) { |s,(_,v)| s + v }
-
-      # Get primary language
-      if primary = @sizes.max_by { |(_, size)| size }
-        @language = primary[0]
-      end
-
-      @computed_stats = true
-
-      nil
+      file_map
     end
   end
 end

lib/linguist/samples.rb

@@ -28,7 +28,7 @@ module Linguist
     #
     # Returns nothing.
     def self.each(&block)
-      Dir.entries(ROOT).each do |category|
+      Dir.entries(ROOT).sort!.each do |category|
         next if category == '.' || category == '..'
 
         # Skip text and binary for now

lib/linguist/vendor.yml

@@ -43,6 +43,7 @@
 # Vendored dependencies
 - thirdparty/
 - vendors?/
+- extern(al)?/
 
 # Debian packaging
 - ^debian/
@@ -148,7 +149,7 @@
 - (^|/)[Mm]icrosoft([Mm]vc)?([Aa]jax|[Vv]alidation)(\.debug)?\.js$
 
 # NuGet
-- ^[Pp]ackages/
+- ^[Pp]ackages\/.+\.\d+\/
 
 # ExtJS
 - (^|/)extjs/.*?\.js$
@@ -168,6 +169,9 @@
 - (^|/)extjs/src/
 - (^|/)extjs/welcome/
 
+# Html5shiv
+- (^|/)html5shiv(\.min)?\.js$
+
 # Samples folders
 - ^[Ss]amples/
 
@@ -196,3 +200,12 @@
 
 # Mercury --use-subdirs
 - Mercury/
+
+# R packages
+- ^vignettes/
+- ^inst/extdata/
+
+# Octicons
+- octicons.css
+- octicons.min.css
+- sprockets-octicons.scss

lib/linguist/version.rb

@@ -1,3 +1,3 @@
 module Linguist
-  VERSION = "2.11.0"
+  VERSION = "3.0.0"
 end

samples/Assembly/FASM.asm

@@ -0,0 +1,350 @@
+
+; flat assembler interface for Win32
+; Copyright (c) 1999-2014, Tomasz Grysztar.
+; All rights reserved.
+
+	format	PE console
+
+section '.text' code readable executable
+
+start:
+
+	mov	[con_handle],STD_OUTPUT_HANDLE
+	mov	esi,_logo
+	call	display_string
+
+	call	get_params
+	jc	information
+
+	call	init_memory
+
+	mov	esi,_memory_prefix
+	call	display_string
+	mov	eax,[memory_end]
+	sub	eax,[memory_start]
+	add	eax,[additional_memory_end]
+	sub	eax,[additional_memory]
+	shr	eax,10
+	call	display_number
+	mov	esi,_memory_suffix
+	call	display_string
+
+	call	[GetTickCount]
+	mov	[start_time],eax
+
+	call	preprocessor
+	call	parser
+	call	assembler
+	call	formatter
+
+	call	display_user_messages
+	movzx	eax,[current_pass]
+	inc	eax
+	call	display_number
+	mov	esi,_passes_suffix
+	call	display_string
+	call	[GetTickCount]
+	sub	eax,[start_time]
+	xor	edx,edx
+	mov	ebx,100
+	div	ebx
+	or	eax,eax
+	jz	display_bytes_count
+	xor	edx,edx
+	mov	ebx,10
+	div	ebx
+	push	edx
+	call	display_number
+	mov	dl,'.'
+	call	display_character
+	pop	eax
+	call	display_number
+	mov	esi,_seconds_suffix
+	call	display_string
+      display_bytes_count:
+	mov	eax,[written_size]
+	call	display_number
+	mov	esi,_bytes_suffix
+	call	display_string
+	xor	al,al
+	jmp	exit_program
+
+information:
+	mov	esi,_usage
+	call	display_string
+	mov	al,1
+	jmp	exit_program
+
+get_params:
+	mov	[input_file],0
+	mov	[output_file],0
+	mov	[symbols_file],0
+	mov	[memory_setting],0
+	mov	[passes_limit],100
+	call	[GetCommandLine]
+	mov	esi,eax
+	mov	edi,params
+    find_command_start:
+	lodsb
+	cmp	al,20h
+	je	find_command_start
+	cmp	al,22h
+	je	skip_quoted_name
+    skip_name:
+	lodsb
+	cmp	al,20h
+	je	find_param
+	or	al,al
+	jz	all_params
+	jmp	skip_name
+    skip_quoted_name:
+	lodsb
+	cmp	al,22h
+	je	find_param
+	or	al,al
+	jz	all_params
+	jmp	skip_quoted_name
+    find_param:
+	lodsb
+	cmp	al,20h
+	je	find_param
+	cmp	al,'-'
+	je	option_param
+	cmp	al,0Dh
+	je	all_params
+	or	al,al
+	jz	all_params
+	cmp	[input_file],0
+	jne	get_output_file
+	mov	[input_file],edi
+	jmp	process_param
+      get_output_file:
+	cmp	[output_file],0
+	jne	bad_params
+	mov	[output_file],edi
+    process_param:
+	cmp	al,22h
+	je	string_param
+    copy_param:
+	stosb
+	lodsb
+	cmp	al,20h
+	je	param_end
+	cmp	al,0Dh
+	je	param_end
+	or	al,al
+	jz	param_end
+	jmp	copy_param
+    string_param:
+	lodsb
+	cmp	al,22h
+	je	string_param_end
+	cmp	al,0Dh
+	je	param_end
+	or	al,al
+	jz	param_end
+	stosb
+	jmp	string_param
+    option_param:
+	lodsb
+	cmp	al,'m'
+	je	memory_option
+	cmp	al,'M'
+	je	memory_option
+	cmp	al,'p'
+	je	passes_option
+	cmp	al,'P'
+	je	passes_option
+	cmp	al,'s'
+	je	symbols_option
+	cmp	al,'S'
+	je	symbols_option
+    bad_params:
+	stc
+	ret
+    get_option_value:
+	xor	eax,eax
+	mov	edx,eax
+    get_option_digit:
+	lodsb
+	cmp	al,20h
+	je	option_value_ok
+	cmp	al,0Dh
+	je	option_value_ok
+	or	al,al
+	jz	option_value_ok
+	sub	al,30h
+	jc	invalid_option_value
+	cmp	al,9
+	ja	invalid_option_value
+	imul	edx,10
+	jo	invalid_option_value
+	add	edx,eax
+	jc	invalid_option_value
+	jmp	get_option_digit
+    option_value_ok:
+	dec	esi
+	clc
+	ret
+    invalid_option_value:
+	stc
+	ret
+    memory_option:
+	lodsb
+	cmp	al,20h
+	je	memory_option
+	cmp	al,0Dh
+	je	bad_params
+	or	al,al
+	jz	bad_params
+	dec	esi
+	call	get_option_value
+	or	edx,edx
+	jz	bad_params
+	cmp	edx,1 shl (32-10)
+	jae	bad_params
+	mov	[memory_setting],edx
+	jmp	find_param
+    passes_option:
+	lodsb
+	cmp	al,20h
+	je	passes_option
+	cmp	al,0Dh
+	je	bad_params
+	or	al,al
+	jz	bad_params
+	dec	esi
+	call	get_option_value
+	or	edx,edx
+	jz	bad_params
+	cmp	edx,10000h
+	ja	bad_params
+	mov	[passes_limit],dx
+	jmp	find_param
+    symbols_option:
+	mov	[symbols_file],edi
+      find_symbols_file_name:
+	lodsb
+	cmp	al,20h
+	jne	process_param
+	jmp	find_symbols_file_name
+    param_end:
+	dec	esi
+    string_param_end:
+	xor	al,al
+	stosb
+	jmp	find_param
+    all_params:
+	cmp	[input_file],0
+	je	bad_params
+	clc
+	ret
+
+include 'system.inc'
+
+include '..\errors.inc'
+include '..\symbdump.inc'
+include '..\preproce.inc'
+include '..\parser.inc'
+include '..\exprpars.inc'
+include '..\assemble.inc'
+include '..\exprcalc.inc'
+include '..\formats.inc'
+include '..\x86_64.inc'
+include '..\avx.inc'
+
+include '..\tables.inc'
+include '..\messages.inc'
+
+section '.data' data readable writeable
+
+include '..\version.inc'
+
+_copyright db 'Copyright (c) 1999-2014, Tomasz Grysztar',0Dh,0Ah,0
+
+_logo db 'flat assembler  version ',VERSION_STRING,0
+_usage db 0Dh,0Ah
+       db 'usage: fasm <source> [output]',0Dh,0Ah
+       db 'optional settings:',0Dh,0Ah
+       db ' -m <limit>    set the limit in kilobytes for the available memory',0Dh,0Ah
+       db ' -p <limit>    set the maximum allowed number of passes',0Dh,0Ah
+       db ' -s <file>     dump symbolic information for debugging',0Dh,0Ah
+       db 0
+_memory_prefix db '  (',0
+_memory_suffix db ' kilobytes memory)',0Dh,0Ah,0
+_passes_suffix db ' passes, ',0
+_seconds_suffix db ' seconds, ',0
+_bytes_suffix db ' bytes.',0Dh,0Ah,0
+
+align 4
+
+include '..\variable.inc'
+
+con_handle dd ?
+memory_setting dd ?
+start_time dd ?
+bytes_count dd ?
+displayed_count dd ?
+character db ?
+last_displayed rb 2
+
+params rb 1000h
+options rb 1000h
+buffer rb 4000h
+
+stack 10000h
+
+section '.idata' import data readable writeable
+
+  dd 0,0,0,rva kernel_name,rva kernel_table
+  dd 0,0,0,0,0
+
+  kernel_table:
+    ExitProcess dd rva _ExitProcess
+    CreateFile dd rva _CreateFileA
+    ReadFile dd rva _ReadFile
+    WriteFile dd rva _WriteFile
+    CloseHandle dd rva _CloseHandle
+    SetFilePointer dd rva _SetFilePointer
+    GetCommandLine dd rva _GetCommandLineA
+    GetEnvironmentVariable dd rva _GetEnvironmentVariable
+    GetStdHandle dd rva _GetStdHandle
+    VirtualAlloc dd rva _VirtualAlloc
+    VirtualFree dd rva _VirtualFree
+    GetTickCount dd rva _GetTickCount
+    GetSystemTime dd rva _GetSystemTime
+    GlobalMemoryStatus dd rva _GlobalMemoryStatus
+    dd 0
+
+  kernel_name db 'KERNEL32.DLL',0
+
+  _ExitProcess dw 0
+    db 'ExitProcess',0
+  _CreateFileA dw 0
+    db 'CreateFileA',0
+  _ReadFile dw 0
+    db 'ReadFile',0
+  _WriteFile dw 0
+    db 'WriteFile',0
+  _CloseHandle dw 0
+    db 'CloseHandle',0
+  _SetFilePointer dw 0
+    db 'SetFilePointer',0
+  _GetCommandLineA dw 0
+    db 'GetCommandLineA',0
+  _GetEnvironmentVariable dw 0
+    db 'GetEnvironmentVariableA',0
+  _GetStdHandle dw 0
+    db 'GetStdHandle',0
+  _VirtualAlloc dw 0
+    db 'VirtualAlloc',0
+  _VirtualFree dw 0
+    db 'VirtualFree',0
+  _GetTickCount dw 0
+    db 'GetTickCount',0
+  _GetSystemTime dw 0
+    db 'GetSystemTime',0
+  _GlobalMemoryStatus dw 0
+    db 'GlobalMemoryStatus',0
+
+section '.reloc' fixups data readable discardable

samples/Assembly/SYSTEM.inc

@@ -0,0 +1,503 @@
+
+; flat assembler interface for Win32
+; Copyright (c) 1999-2014, Tomasz Grysztar.
+; All rights reserved.
+
+CREATE_NEW	       = 1
+CREATE_ALWAYS	       = 2
+OPEN_EXISTING	       = 3
+OPEN_ALWAYS	       = 4
+TRUNCATE_EXISTING      = 5
+
+FILE_SHARE_READ        = 1
+FILE_SHARE_WRITE       = 2
+FILE_SHARE_DELETE      = 4
+
+GENERIC_READ	       = 80000000h
+GENERIC_WRITE	       = 40000000h
+
+STD_INPUT_HANDLE       = 0FFFFFFF6h
+STD_OUTPUT_HANDLE      = 0FFFFFFF5h
+STD_ERROR_HANDLE       = 0FFFFFFF4h
+
+MEM_COMMIT	       = 1000h
+MEM_RESERVE	       = 2000h
+MEM_DECOMMIT	       = 4000h
+MEM_RELEASE	       = 8000h
+MEM_FREE	       = 10000h
+MEM_PRIVATE	       = 20000h
+MEM_MAPPED	       = 40000h
+MEM_RESET	       = 80000h
+MEM_TOP_DOWN	       = 100000h
+
+PAGE_NOACCESS	       = 1
+PAGE_READONLY	       = 2
+PAGE_READWRITE	       = 4
+PAGE_WRITECOPY	       = 8
+PAGE_EXECUTE	       = 10h
+PAGE_EXECUTE_READ      = 20h
+PAGE_EXECUTE_READWRITE = 40h
+PAGE_EXECUTE_WRITECOPY = 80h
+PAGE_GUARD	       = 100h
+PAGE_NOCACHE	       = 200h
+
+init_memory:
+	xor	eax,eax
+	mov	[memory_start],eax
+	mov	eax,esp
+	and	eax,not 0FFFh
+	add	eax,1000h-10000h
+	mov	[stack_limit],eax
+	mov	eax,[memory_setting]
+	shl	eax,10
+	jnz	allocate_memory
+	push	buffer
+	call	[GlobalMemoryStatus]
+	mov	eax,dword [buffer+20]
+	mov	edx,dword [buffer+12]
+	cmp	eax,0
+	jl	large_memory
+	cmp	edx,0
+	jl	large_memory
+	shr	eax,2
+	add	eax,edx
+	jmp	allocate_memory
+    large_memory:
+	mov	eax,80000000h
+    allocate_memory:
+	mov	edx,eax
+	shr	edx,2
+	mov	ecx,eax
+	sub	ecx,edx
+	mov	[memory_end],ecx
+	mov	[additional_memory_end],edx
+	push	PAGE_READWRITE
+	push	MEM_COMMIT
+	push	eax
+	push	0
+	call	[VirtualAlloc]
+	or	eax,eax
+	jz	not_enough_memory
+	mov	[memory_start],eax
+	add	eax,[memory_end]
+	mov	[memory_end],eax
+	mov	[additional_memory],eax
+	add	[additional_memory_end],eax
+	ret
+    not_enough_memory:
+	mov	eax,[additional_memory_end]
+	shl	eax,1
+	cmp	eax,4000h
+	jb	out_of_memory
+	jmp	allocate_memory
+
+exit_program:
+	movzx	eax,al
+	push	eax
+	mov	eax,[memory_start]
+	test	eax,eax
+	jz	do_exit
+	push	MEM_RELEASE
+	push	0
+	push	eax
+	call	[VirtualFree]
+    do_exit:
+	call	[ExitProcess]
+
+get_environment_variable:
+	mov	ecx,[memory_end]
+	sub	ecx,edi
+	cmp	ecx,4000h
+	jbe	buffer_for_variable_ok
+	mov	ecx,4000h
+    buffer_for_variable_ok:
+	push	ecx
+	push	edi
+	push	esi
+	call	[GetEnvironmentVariable]
+	add	edi,eax
+	cmp	edi,[memory_end]
+	jae	out_of_memory
+	ret
+
+open:
+	push	0
+	push	0
+	push	OPEN_EXISTING
+	push	0
+	push	FILE_SHARE_READ
+	push	GENERIC_READ
+	push	edx
+	call	[CreateFile]
+	cmp	eax,-1
+	je	file_error
+	mov	ebx,eax
+	clc
+	ret
+    file_error:
+	stc
+	ret
+create:
+	push	0
+	push	0
+	push	CREATE_ALWAYS
+	push	0
+	push	FILE_SHARE_READ
+	push	GENERIC_WRITE
+	push	edx
+	call	[CreateFile]
+	cmp	eax,-1
+	je	file_error
+	mov	ebx,eax
+	clc
+	ret
+write:
+	push	0
+	push	bytes_count
+	push	ecx
+	push	edx
+	push	ebx
+	call	[WriteFile]
+	or	eax,eax
+	jz	file_error
+	clc
+	ret
+read:
+	mov	ebp,ecx
+	push	0
+	push	bytes_count
+	push	ecx
+	push	edx
+	push	ebx
+	call	[ReadFile]
+	or	eax,eax
+	jz	file_error
+	cmp	ebp,[bytes_count]
+	jne	file_error
+	clc
+	ret
+close:
+	push	ebx
+	call	[CloseHandle]
+	ret
+lseek:
+	movzx	eax,al
+	push	eax
+	push	0
+	push	edx
+	push	ebx
+	call	[SetFilePointer]
+	ret
+
+display_string:
+	push	[con_handle]
+	call	[GetStdHandle]
+	mov	ebp,eax
+	mov	edi,esi
+	or	ecx,-1
+	xor	al,al
+	repne	scasb
+	neg	ecx
+	sub	ecx,2
+	push	0
+	push	bytes_count
+	push	ecx
+	push	esi
+	push	ebp
+	call	[WriteFile]
+	ret
+display_character:
+	push	ebx
+	mov	[character],dl
+	push	[con_handle]
+	call	[GetStdHandle]
+	mov	ebx,eax
+	push	0
+	push	bytes_count
+	push	1
+	push	character
+	push	ebx
+	call	[WriteFile]
+	pop	ebx
+	ret
+display_number:
+	push	ebx
+	mov	ecx,1000000000
+	xor	edx,edx
+	xor	bl,bl
+      display_loop:
+	div	ecx
+	push	edx
+	cmp	ecx,1
+	je	display_digit
+	or	bl,bl
+	jnz	display_digit
+	or	al,al
+	jz	digit_ok
+	not	bl
+      display_digit:
+	mov	dl,al
+	add	dl,30h
+	push	ecx
+	call	display_character
+	pop	ecx
+      digit_ok:
+	mov	eax,ecx
+	xor	edx,edx
+	mov	ecx,10
+	div	ecx
+	mov	ecx,eax
+	pop	eax
+	or	ecx,ecx
+	jnz	display_loop
+	pop	ebx
+	ret
+
+display_user_messages:
+	mov	[displayed_count],0
+	call	show_display_buffer
+	cmp	[displayed_count],1
+	jb	line_break_ok
+	je	make_line_break
+	mov	ax,word [last_displayed]
+	cmp	ax,0A0Dh
+	je	line_break_ok
+	cmp	ax,0D0Ah
+	je	line_break_ok
+      make_line_break:
+	mov	word [buffer],0A0Dh
+	push	[con_handle]
+	call	[GetStdHandle]
+	push	0
+	push	bytes_count
+	push	2
+	push	buffer
+	push	eax
+	call	[WriteFile]
+      line_break_ok:
+	ret
+display_block:
+	add	[displayed_count],ecx
+	cmp	ecx,1
+	ja	take_last_two_characters
+	jb	block_displayed
+	mov	al,[last_displayed+1]
+	mov	ah,[esi]
+	mov	word [last_displayed],ax
+	jmp	block_ok
+      take_last_two_characters:
+	mov	ax,[esi+ecx-2]
+	mov	word [last_displayed],ax
+      block_ok:
+	push	ecx
+	push	[con_handle]
+	call	[GetStdHandle]
+	pop	ecx
+	push	0
+	push	bytes_count
+	push	ecx
+	push	esi
+	push	eax
+	call	[WriteFile]
+      block_displayed:
+	ret
+
+fatal_error:
+	mov	[con_handle],STD_ERROR_HANDLE
+	mov	esi,error_prefix
+	call	display_string
+	pop	esi
+	call	display_string
+	mov	esi,error_suffix
+	call	display_string
+	mov	al,0FFh
+	jmp	exit_program
+assembler_error:
+	mov	[con_handle],STD_ERROR_HANDLE
+	call	display_user_messages
+	push	dword 0
+	mov	ebx,[current_line]
+      get_error_lines:
+	mov	eax,[ebx]
+	cmp	byte [eax],0
+	je	get_next_error_line
+	push	ebx
+	test	byte [ebx+7],80h
+	jz	display_error_line
+	mov	edx,ebx
+      find_definition_origin:
+	mov	edx,[edx+12]
+	test	byte [edx+7],80h
+	jnz	find_definition_origin
+	push	edx
+      get_next_error_line:
+	mov	ebx,[ebx+8]
+	jmp	get_error_lines
+      display_error_line:
+	mov	esi,[ebx]
+	call	display_string
+	mov	esi,line_number_start
+	call	display_string
+	mov	eax,[ebx+4]
+	and	eax,7FFFFFFFh
+	call	display_number
+	mov	dl,']'
+	call	display_character
+	pop	esi
+	cmp	ebx,esi
+	je	line_number_ok
+	mov	dl,20h
+	call	display_character
+	push	esi
+	mov	esi,[esi]
+	movzx	ecx,byte [esi]
+	inc	esi
+	call	display_block
+	mov	esi,line_number_start
+	call	display_string
+	pop	esi
+	mov	eax,[esi+4]
+	and	eax,7FFFFFFFh
+	call	display_number
+	mov	dl,']'
+	call	display_character
+      line_number_ok:
+	mov	esi,line_data_start
+	call	display_string
+	mov	esi,ebx
+	mov	edx,[esi]
+	call	open
+	mov	al,2
+	xor	edx,edx
+	call	lseek
+	mov	edx,[esi+8]
+	sub	eax,edx
+	jz	line_data_displayed
+	push	eax
+	xor	al,al
+	call	lseek
+	mov	ecx,[esp]
+	mov	edx,[additional_memory]
+	lea	eax,[edx+ecx]
+	cmp	eax,[additional_memory_end]
+	ja	out_of_memory
+	call	read
+	call	close
+	pop	ecx
+	mov	esi,[additional_memory]
+      get_line_data:
+	mov	al,[esi]
+	cmp	al,0Ah
+	je	display_line_data
+	cmp	al,0Dh
+	je	display_line_data
+	cmp	al,1Ah
+	je	display_line_data
+	or	al,al
+	jz	display_line_data
+	inc	esi
+	loop	get_line_data
+      display_line_data:
+	mov	ecx,esi
+	mov	esi,[additional_memory]
+	sub	ecx,esi
+	call	display_block
+      line_data_displayed:
+	mov	esi,cr_lf
+	call	display_string
+	pop	ebx
+	or	ebx,ebx
+	jnz	display_error_line
+	mov	esi,error_prefix
+	call	display_string
+	pop	esi
+	call	display_string
+	mov	esi,error_suffix
+	call	display_string
+	mov	al,2
+	jmp	exit_program
+
+make_timestamp:
+	push	buffer
+	call	[GetSystemTime]
+	movzx	ecx,word [buffer]
+	mov	eax,ecx
+	sub	eax,1970
+	mov	ebx,365
+	mul	ebx
+	mov	ebp,eax
+	mov	eax,ecx
+	sub	eax,1969
+	shr	eax,2
+	add	ebp,eax
+	mov	eax,ecx
+	sub	eax,1901
+	mov	ebx,100
+	div	ebx
+	sub	ebp,eax
+	mov	eax,ecx
+	xor	edx,edx
+	sub	eax,1601
+	mov	ebx,400
+	div	ebx
+	add	ebp,eax
+	movzx	ecx,word [buffer+2]
+	mov	eax,ecx
+	dec	eax
+	mov	ebx,30
+	mul	ebx
+	add	ebp,eax
+	cmp	ecx,8
+	jbe	months_correction
+	mov	eax,ecx
+	sub	eax,7
+	shr	eax,1
+	add	ebp,eax
+	mov	ecx,8
+      months_correction:
+	mov	eax,ecx
+	shr	eax,1
+	add	ebp,eax
+	cmp	ecx,2
+	jbe	day_correction_ok
+	sub	ebp,2
+	movzx	ecx,word [buffer]
+	test	ecx,11b
+	jnz	day_correction_ok
+	xor	edx,edx
+	mov	eax,ecx
+	mov	ebx,100
+	div	ebx
+	or	edx,edx
+	jnz	day_correction
+	mov	eax,ecx
+	mov	ebx,400
+	div	ebx
+	or	edx,edx
+	jnz	day_correction_ok
+      day_correction:
+	inc	ebp
+      day_correction_ok:
+	movzx	eax,word [buffer+6]
+	dec	eax
+	add	eax,ebp
+	mov	ebx,24
+	mul	ebx
+	movzx	ecx,word [buffer+8]
+	add	eax,ecx
+	mov	ebx,60
+	mul	ebx
+	movzx	ecx,word [buffer+10]
+	add	eax,ecx
+	mov	ebx,60
+	mul	ebx
+	movzx	ecx,word [buffer+12]
+	add	eax,ecx
+	adc	edx,0
+	ret
+
+error_prefix db 'error: ',0
+error_suffix db '.'
+cr_lf db 0Dh,0Ah,0
+line_number_start db ' [',0
+line_data_start db ':',0Dh,0Ah,0

samples/C++/epoll_reactor.ipp

@@ -0,0 +1,664 @@
+//
+// detail/impl/epoll_reactor.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2013 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP
+#define BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/config.hpp>
+
+#if defined(BOOST_ASIO_HAS_EPOLL)
+
+#include <cstddef>
+#include <sys/epoll.h>
+#include <boost/asio/detail/epoll_reactor.hpp>
+#include <boost/asio/detail/throw_error.hpp>
+#include <boost/asio/error.hpp>
+
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+# include <sys/timerfd.h>
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+
+#include <boost/asio/detail/push_options.hpp>
+
+namespace boost {
+namespace asio {
+namespace detail {
+
+epoll_reactor::epoll_reactor(boost::asio::io_service& io_service)
+  : boost::asio::detail::service_base<epoll_reactor>(io_service),
+    io_service_(use_service<io_service_impl>(io_service)),
+    mutex_(),
+    interrupter_(),
+    epoll_fd_(do_epoll_create()),
+    timer_fd_(do_timerfd_create()),
+    shutdown_(false)
+{
+  // Add the interrupter's descriptor to epoll.
+  epoll_event ev = { 0, { 0 } };
+  ev.events = EPOLLIN | EPOLLERR | EPOLLET;
+  ev.data.ptr = &interrupter_;
+  epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(), &ev);
+  interrupter_.interrupt();
+
+  // Add the timer descriptor to epoll.
+  if (timer_fd_ != -1)
+  {
+    ev.events = EPOLLIN | EPOLLERR;
+    ev.data.ptr = &timer_fd_;
+    epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev);
+  }
+}
+
+epoll_reactor::~epoll_reactor()
+{
+  if (epoll_fd_ != -1)
+    close(epoll_fd_);
+  if (timer_fd_ != -1)
+    close(timer_fd_);
+}
+
+void epoll_reactor::shutdown_service()
+{
+  mutex::scoped_lock lock(mutex_);
+  shutdown_ = true;
+  lock.unlock();
+
+  op_queue<operation> ops;
+
+  while (descriptor_state* state = registered_descriptors_.first())
+  {
+    for (int i = 0; i < max_ops; ++i)
+      ops.push(state->op_queue_[i]);
+    state->shutdown_ = true;
+    registered_descriptors_.free(state);
+  }
+
+  timer_queues_.get_all_timers(ops);
+
+  io_service_.abandon_operations(ops);
+}
+
+void epoll_reactor::fork_service(boost::asio::io_service::fork_event fork_ev)
+{
+  if (fork_ev == boost::asio::io_service::fork_child)
+  {
+    if (epoll_fd_ != -1)
+      ::close(epoll_fd_);
+    epoll_fd_ = -1;
+    epoll_fd_ = do_epoll_create();
+
+    if (timer_fd_ != -1)
+      ::close(timer_fd_);
+    timer_fd_ = -1;
+    timer_fd_ = do_timerfd_create();
+
+    interrupter_.recreate();
+
+    // Add the interrupter's descriptor to epoll.
+    epoll_event ev = { 0, { 0 } };
+    ev.events = EPOLLIN | EPOLLERR | EPOLLET;
+    ev.data.ptr = &interrupter_;
+    epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(), &ev);
+    interrupter_.interrupt();
+
+    // Add the timer descriptor to epoll.
+    if (timer_fd_ != -1)
+    {
+      ev.events = EPOLLIN | EPOLLERR;
+      ev.data.ptr = &timer_fd_;
+      epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev);
+    }
+
+    update_timeout();
+
+    // Re-register all descriptors with epoll.
+    mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
+    for (descriptor_state* state = registered_descriptors_.first();
+        state != 0; state = state->next_)
+    {
+      ev.events = state->registered_events_;
+      ev.data.ptr = state;
+      int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, state->descriptor_, &ev);
+      if (result != 0)
+      {
+        boost::system::error_code ec(errno,
+            boost::asio::error::get_system_category());
+        boost::asio::detail::throw_error(ec, "epoll re-registration");
+      }
+    }
+  }
+}
+
+void epoll_reactor::init_task()
+{
+  io_service_.init_task();
+}
+
+int epoll_reactor::register_descriptor(socket_type descriptor,
+    epoll_reactor::per_descriptor_data& descriptor_data)
+{
+  descriptor_data = allocate_descriptor_state();
+
+  {
+    mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+    descriptor_data->reactor_ = this;
+    descriptor_data->descriptor_ = descriptor;
+    descriptor_data->shutdown_ = false;
+  }
+
+  epoll_event ev = { 0, { 0 } };
+  ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLPRI | EPOLLET;
+  descriptor_data->registered_events_ = ev.events;
+  ev.data.ptr = descriptor_data;
+  int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev);
+  if (result != 0)
+    return errno;
+
+  return 0;
+}
+
+int epoll_reactor::register_internal_descriptor(
+    int op_type, socket_type descriptor,
+    epoll_reactor::per_descriptor_data& descriptor_data, reactor_op* op)
+{
+  descriptor_data = allocate_descriptor_state();
+
+  {
+    mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+    descriptor_data->reactor_ = this;
+    descriptor_data->descriptor_ = descriptor;
+    descriptor_data->shutdown_ = false;
+    descriptor_data->op_queue_[op_type].push(op);
+  }
+
+  epoll_event ev = { 0, { 0 } };
+  ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLPRI | EPOLLET;
+  descriptor_data->registered_events_ = ev.events;
+  ev.data.ptr = descriptor_data;
+  int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev);
+  if (result != 0)
+    return errno;
+
+  return 0;
+}
+
+void epoll_reactor::move_descriptor(socket_type,
+    epoll_reactor::per_descriptor_data& target_descriptor_data,
+    epoll_reactor::per_descriptor_data& source_descriptor_data)
+{
+  target_descriptor_data = source_descriptor_data;
+  source_descriptor_data = 0;
+}
+
+void epoll_reactor::start_op(int op_type, socket_type descriptor,
+    epoll_reactor::per_descriptor_data& descriptor_data, reactor_op* op,
+    bool is_continuation, bool allow_speculative)
+{
+  if (!descriptor_data)
+  {
+    op->ec_ = boost::asio::error::bad_descriptor;
+    post_immediate_completion(op, is_continuation);
+    return;
+  }
+
+  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+  if (descriptor_data->shutdown_)
+  {
+    post_immediate_completion(op, is_continuation);
+    return;
+  }
+
+  if (descriptor_data->op_queue_[op_type].empty())
+  {
+    if (allow_speculative
+        && (op_type != read_op
+          || descriptor_data->op_queue_[except_op].empty()))
+    {
+      if (op->perform())
+      {
+        descriptor_lock.unlock();
+        io_service_.post_immediate_completion(op, is_continuation);
+        return;
+      }
+
+      if (op_type == write_op)
+      {
+        if ((descriptor_data->registered_events_ & EPOLLOUT) == 0)
+        {
+          epoll_event ev = { 0, { 0 } };
+          ev.events = descriptor_data->registered_events_ | EPOLLOUT;
+          ev.data.ptr = descriptor_data;
+          if (epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, descriptor, &ev) == 0)
+          {
+            descriptor_data->registered_events_ |= ev.events;
+          }
+          else
+          {
+            op->ec_ = boost::system::error_code(errno,
+                boost::asio::error::get_system_category());
+            io_service_.post_immediate_completion(op, is_continuation);
+            return;
+          }
+        }
+      }
+    }
+    else
+    {
+      if (op_type == write_op)
+      {
+        descriptor_data->registered_events_ |= EPOLLOUT;
+      }
+
+      epoll_event ev = { 0, { 0 } };
+      ev.events = descriptor_data->registered_events_;
+      ev.data.ptr = descriptor_data;
+      epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, descriptor, &ev);
+    }
+  }
+
+  descriptor_data->op_queue_[op_type].push(op);
+  io_service_.work_started();
+}
+
+void epoll_reactor::cancel_ops(socket_type,
+    epoll_reactor::per_descriptor_data& descriptor_data)
+{
+  if (!descriptor_data)
+    return;
+
+  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+  op_queue<operation> ops;
+  for (int i = 0; i < max_ops; ++i)
+  {
+    while (reactor_op* op = descriptor_data->op_queue_[i].front())
+    {
+      op->ec_ = boost::asio::error::operation_aborted;
+      descriptor_data->op_queue_[i].pop();
+      ops.push(op);
+    }
+  }
+
+  descriptor_lock.unlock();
+
+  io_service_.post_deferred_completions(ops);
+}
+
+void epoll_reactor::deregister_descriptor(socket_type descriptor,
+    epoll_reactor::per_descriptor_data& descriptor_data, bool closing)
+{
+  if (!descriptor_data)
+    return;
+
+  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+  if (!descriptor_data->shutdown_)
+  {
+    if (closing)
+    {
+      // The descriptor will be automatically removed from the epoll set when
+      // it is closed.
+    }
+    else
+    {
+      epoll_event ev = { 0, { 0 } };
+      epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev);
+    }
+
+    op_queue<operation> ops;
+    for (int i = 0; i < max_ops; ++i)
+    {
+      while (reactor_op* op = descriptor_data->op_queue_[i].front())
+      {
+        op->ec_ = boost::asio::error::operation_aborted;
+        descriptor_data->op_queue_[i].pop();
+        ops.push(op);
+      }
+    }
+
+    descriptor_data->descriptor_ = -1;
+    descriptor_data->shutdown_ = true;
+
+    descriptor_lock.unlock();
+
+    free_descriptor_state(descriptor_data);
+    descriptor_data = 0;
+
+    io_service_.post_deferred_completions(ops);
+  }
+}
+
+void epoll_reactor::deregister_internal_descriptor(socket_type descriptor,
+    epoll_reactor::per_descriptor_data& descriptor_data)
+{
+  if (!descriptor_data)
+    return;
+
+  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+  if (!descriptor_data->shutdown_)
+  {
+    epoll_event ev = { 0, { 0 } };
+    epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev);
+
+    op_queue<operation> ops;
+    for (int i = 0; i < max_ops; ++i)
+      ops.push(descriptor_data->op_queue_[i]);
+
+    descriptor_data->descriptor_ = -1;
+    descriptor_data->shutdown_ = true;
+
+    descriptor_lock.unlock();
+
+    free_descriptor_state(descriptor_data);
+    descriptor_data = 0;
+  }
+}
+
+void epoll_reactor::run(bool block, op_queue<operation>& ops)
+{
+  // This code relies on the fact that the task_io_service queues the reactor
+  // task behind all descriptor operations generated by this function. This
+  // means, that by the time we reach this point, any previously returned
+  // descriptor operations have already been dequeued. Therefore it is now safe
+  // for us to reuse and return them for the task_io_service to queue again.
+
+  // Calculate a timeout only if timerfd is not used.
+  int timeout;
+  if (timer_fd_ != -1)
+    timeout = block ? -1 : 0;
+  else
+  {
+    mutex::scoped_lock lock(mutex_);
+    timeout = block ? get_timeout() : 0;
+  }
+
+  // Block on the epoll descriptor.
+  epoll_event events[128];
+  int num_events = epoll_wait(epoll_fd_, events, 128, timeout);
+
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+  bool check_timers = (timer_fd_ == -1);
+#else // defined(BOOST_ASIO_HAS_TIMERFD)
+  bool check_timers = true;
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+
+  // Dispatch the waiting events.
+  for (int i = 0; i < num_events; ++i)
+  {
+    void* ptr = events[i].data.ptr;
+    if (ptr == &interrupter_)
+    {
+      // No need to reset the interrupter since we're leaving the descriptor
+      // in a ready-to-read state and relying on edge-triggered notifications
+      // to make it so that we only get woken up when the descriptor's epoll
+      // registration is updated.
+
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+      if (timer_fd_ == -1)
+        check_timers = true;
+#else // defined(BOOST_ASIO_HAS_TIMERFD)
+      check_timers = true;
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+    }
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+    else if (ptr == &timer_fd_)
+    {
+      check_timers = true;
+    }
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+    else
+    {
+      // The descriptor operation doesn't count as work in and of itself, so we
+      // don't call work_started() here. This still allows the io_service to
+      // stop if the only remaining operations are descriptor operations.
+      descriptor_state* descriptor_data = static_cast<descriptor_state*>(ptr);
+      descriptor_data->set_ready_events(events[i].events);
+      ops.push(descriptor_data);
+    }
+  }
+
+  if (check_timers)
+  {
+    mutex::scoped_lock common_lock(mutex_);
+    timer_queues_.get_ready_timers(ops);
+
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+    if (timer_fd_ != -1)
+    {
+      itimerspec new_timeout;
+      itimerspec old_timeout;
+      int flags = get_timeout(new_timeout);
+      timerfd_settime(timer_fd_, flags, &new_timeout, &old_timeout);
+    }
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+  }
+}
+
+void epoll_reactor::interrupt()
+{
+  epoll_event ev = { 0, { 0 } };
+  ev.events = EPOLLIN | EPOLLERR | EPOLLET;
+  ev.data.ptr = &interrupter_;
+  epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, interrupter_.read_descriptor(), &ev);
+}
+
+int epoll_reactor::do_epoll_create()
+{
+#if defined(EPOLL_CLOEXEC)
+  int fd = epoll_create1(EPOLL_CLOEXEC);
+#else // defined(EPOLL_CLOEXEC)
+  int fd = -1;
+  errno = EINVAL;
+#endif // defined(EPOLL_CLOEXEC)
+
+  if (fd == -1 && (errno == EINVAL || errno == ENOSYS))
+  {
+    fd = epoll_create(epoll_size);
+    if (fd != -1)
+      ::fcntl(fd, F_SETFD, FD_CLOEXEC);
+  }
+
+  if (fd == -1)
+  {
+    boost::system::error_code ec(errno,
+        boost::asio::error::get_system_category());
+    boost::asio::detail::throw_error(ec, "epoll");
+  }
+
+  return fd;
+}
+
+int epoll_reactor::do_timerfd_create()
+{
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+# if defined(TFD_CLOEXEC)
+  int fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
+# else // defined(TFD_CLOEXEC)
+  int fd = -1;
+  errno = EINVAL;
+# endif // defined(TFD_CLOEXEC)
+
+  if (fd == -1 && errno == EINVAL)
+  {
+    fd = timerfd_create(CLOCK_MONOTONIC, 0);
+    if (fd != -1)
+      ::fcntl(fd, F_SETFD, FD_CLOEXEC);
+  }
+
+  return fd;
+#else // defined(BOOST_ASIO_HAS_TIMERFD)
+  return -1;
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+}
+
+epoll_reactor::descriptor_state* epoll_reactor::allocate_descriptor_state()
+{
+  mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
+  return registered_descriptors_.alloc();
+}
+
+void epoll_reactor::free_descriptor_state(epoll_reactor::descriptor_state* s)
+{
+  mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
+  registered_descriptors_.free(s);
+}
+
+void epoll_reactor::do_add_timer_queue(timer_queue_base& queue)
+{
+  mutex::scoped_lock lock(mutex_);
+  timer_queues_.insert(&queue);
+}
+
+void epoll_reactor::do_remove_timer_queue(timer_queue_base& queue)
+{
+  mutex::scoped_lock lock(mutex_);
+  timer_queues_.erase(&queue);
+}
+
+void epoll_reactor::update_timeout()
+{
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+  if (timer_fd_ != -1)
+  {
+    itimerspec new_timeout;
+    itimerspec old_timeout;
+    int flags = get_timeout(new_timeout);
+    timerfd_settime(timer_fd_, flags, &new_timeout, &old_timeout);
+    return;
+  }
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+  interrupt();
+}
+
+int epoll_reactor::get_timeout()
+{
+  // By default we will wait no longer than 5 minutes. This will ensure that
+  // any changes to the system clock are detected after no longer than this.
+  return timer_queues_.wait_duration_msec(5 * 60 * 1000);
+}
+
+#if defined(BOOST_ASIO_HAS_TIMERFD)
+int epoll_reactor::get_timeout(itimerspec& ts)
+{
+  ts.it_interval.tv_sec = 0;
+  ts.it_interval.tv_nsec = 0;
+
+  long usec = timer_queues_.wait_duration_usec(5 * 60 * 1000 * 1000);
+  ts.it_value.tv_sec = usec / 1000000;
+  ts.it_value.tv_nsec = usec ? (usec % 1000000) * 1000 : 1;
+
+  return usec ? 0 : TFD_TIMER_ABSTIME;
+}
+#endif // defined(BOOST_ASIO_HAS_TIMERFD)
+
+struct epoll_reactor::perform_io_cleanup_on_block_exit
+{
+  explicit perform_io_cleanup_on_block_exit(epoll_reactor* r)
+    : reactor_(r), first_op_(0)
+  {
+  }
+
+  ~perform_io_cleanup_on_block_exit()
+  {
+    if (first_op_)
+    {
+      // Post the remaining completed operations for invocation.
+      if (!ops_.empty())
+        reactor_->io_service_.post_deferred_completions(ops_);
+
+      // A user-initiated operation has completed, but there's no need to
+      // explicitly call work_finished() here. Instead, we'll take advantage of
+      // the fact that the task_io_service will call work_finished() once we
+      // return.
+    }
+    else
+    {
+      // No user-initiated operations have completed, so we need to compensate
+      // for the work_finished() call that the task_io_service will make once
+      // this operation returns.
+      reactor_->io_service_.work_started();
+    }
+  }
+
+  epoll_reactor* reactor_;
+  op_queue<operation> ops_;
+  operation* first_op_;
+};
+
+epoll_reactor::descriptor_state::descriptor_state()
+  : operation(&epoll_reactor::descriptor_state::do_complete)
+{
+}
+
+operation* epoll_reactor::descriptor_state::perform_io(uint32_t events)
+{
+  mutex_.lock();
+  perform_io_cleanup_on_block_exit io_cleanup(reactor_);
+  mutex::scoped_lock descriptor_lock(mutex_, mutex::scoped_lock::adopt_lock);
+
+  // Exception operations must be processed first to ensure that any
+  // out-of-band data is read before normal data.
+  static const int flag[max_ops] = { EPOLLIN, EPOLLOUT, EPOLLPRI };
+  for (int j = max_ops - 1; j >= 0; --j)
+  {
+    if (events & (flag[j] | EPOLLERR | EPOLLHUP))
+    {
+      while (reactor_op* op = op_queue_[j].front())
+      {
+        if (op->perform())
+        {
+          op_queue_[j].pop();
+          io_cleanup.ops_.push(op);
+        }
+        else
+          break;
+      }
+    }
+  }
+
+  // The first operation will be returned for completion now. The others will
+  // be posted for later by the io_cleanup object's destructor.
+  io_cleanup.first_op_ = io_cleanup.ops_.front();
+  io_cleanup.ops_.pop();
+  return io_cleanup.first_op_;
+}
+
+void epoll_reactor::descriptor_state::do_complete(
+    io_service_impl* owner, operation* base,
+    const boost::system::error_code& ec, std::size_t bytes_transferred)
+{
+  if (owner)
+  {
+    descriptor_state* descriptor_data = static_cast<descriptor_state*>(base);
+    uint32_t events = static_cast<uint32_t>(bytes_transferred);
+    if (operation* op = descriptor_data->perform_io(events))
+    {
+      op->complete(*owner, ec, 0);
+    }
+  }
+}
+
+} // namespace detail
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // defined(BOOST_ASIO_HAS_EPOLL)
+
+#endif // BOOST_ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP

samples/Component Pascal/Example.cp

@@ -0,0 +1,130 @@
+MODULE ObxControls;
+(**
+    project         = "BlackBox"
+    organization    = "www.oberon.ch"
+    contributors    = "Oberon microsystems"
+    version         = "System/Rsrc/About"
+    copyright       = "System/Rsrc/About"
+    license         = "Docu/BB-License"
+    changes         = ""
+    issues          = ""
+
+**)
+
+IMPORT Dialog, Ports, Properties, Views;
+
+CONST beginner = 0; advanced = 1; expert = 2; guru = 3;    (* user classes *)
+
+TYPE
+    View = POINTER TO RECORD (Views.View)
+        size: INTEGER    (* border size in mm *)
+    END;
+
+VAR
+    data*: RECORD
+        class*: INTEGER;    (* current user class *)
+        list*: Dialog.List;    (* list of currently available sizes, derived from class *)
+        width*: INTEGER    (* width of next view to be opened. Derived from
+                                    class, or entered through a text entry field *)
+    END;
+
+    predef: ARRAY 6 OF INTEGER;    (* table of predefined sizes *)
+
+
+PROCEDURE SetList;
+BEGIN
+    IF data.class = beginner THEN
+        data.list.SetLen(1);
+        data.list.SetItem(0, "default")
+    ELSIF data.class = advanced THEN
+        data.list.SetLen(4);
+        data.list.SetItem(0, "default");
+        data.list.SetItem(1, "small");
+        data.list.SetItem(2, "medium");
+        data.list.SetItem(3, "large");
+    ELSE
+        data.list.SetLen(6);
+        data.list.SetItem(0, "default");
+        data.list.SetItem(1, "small");
+        data.list.SetItem(2, "medium");
+        data.list.SetItem(3, "large");
+        data.list.SetItem(4, "tiny");
+        data.list.SetItem(5, "huge");
+    END
+END SetList;
+
+(* View *)
+
+PROCEDURE (v: View) CopyFromSimpleView (source: Views.View);
+BEGIN
+    v.size := source(View).size
+END CopyFromSimpleView;
+
+PROCEDURE (v: View) Restore (f: Views.Frame; l, t, r, b: INTEGER);
+BEGIN    (* fill view with a red square of size v.size *)
+    IF v.size = 0 THEN v.size := predef[0] END;    (* lazy initialization of size *)
+    f.DrawRect(0, 0, v.size, v.size, Ports.fill, Ports.red)
+END Restore;
+
+PROCEDURE (v: View) HandlePropMsg (VAR msg: Views.PropMessage);
+BEGIN
+    WITH msg: Properties.SizePref DO
+        IF v.size = 0 THEN v.size := predef[0] END;    (* lazy initialization of size *)
+        msg.w := v.size; msg.h := v.size    (* tell environment about desired width and height *)
+    ELSE    (* ignore other messages *)
+    END
+END HandlePropMsg;
+
+(* notifiers *)
+
+PROCEDURE ClassNotify* (op, from, to: INTEGER);
+BEGIN    (* react to change in data.class *)
+    IF op = Dialog.changed THEN
+        IF (to = beginner) OR (to = advanced) & (data.list.index > 3) THEN
+            (* if class is reduced, make sure that selection contains legal elements *)
+            data.list.index := 0; data.width := predef[0];    (* modify interactor *)
+            Dialog.Update(data)    (* redraw controls where necessary *)
+        END;
+        SetList;
+        Dialog.UpdateList(data.list)    (* reconstruct list box contents *)
+    END
+END ClassNotify;
+
+PROCEDURE ListNotify* (op, from, to: INTEGER);
+BEGIN    (* reacto to change in data.list (index to was selected) *)
+    IF op = Dialog.changed THEN
+        data.width := predef[to];    (* modify interactor *)
+        Dialog.Update(data)    (* redraw controls where necessary *)
+    END
+END ListNotify;
+
+(* guards *)
+
+PROCEDURE ListGuard* (VAR par: Dialog.Par);
+BEGIN    (* disable list box for a beginner *)
+    par.disabled := data.class = beginner
+END ListGuard;
+
+PROCEDURE WidthGuard* (VAR par: Dialog.Par);
+BEGIN    (* make text entry field read-only if user is not guru *)
+    par.readOnly := data.class # guru
+END WidthGuard;
+
+(* commands *)
+
+PROCEDURE Open*;
+    VAR v: View;
+BEGIN
+    NEW(v);    (* create and initialize a new view *)
+    v.size := data.width * Ports.mm;    (* define view's size in function of class *)
+    Views.OpenAux(v, "Example")    (* open the view in a window *)
+END Open;
+
+BEGIN    (* initialization of global variables *)
+    predef[0] := 40; predef[1] := 30; predef[2] := 50;    (* predefined sizes *)
+    predef[3] := 70; predef[4] := 20; predef[5] := 100;
+    data.class := beginner;    (* default values *)
+    data.list.index := 0;
+    data.width := predef[0];
+    SetList
+END ObxControls.

samples/Component Pascal/Example2.cps

@@ -0,0 +1,71 @@
+MODULE ObxFact;
+(**
+    project         = "BlackBox"
+    organization    = "www.oberon.ch"
+    contributors    = "Oberon microsystems"
+    version         = "System/Rsrc/About"
+    copyright       = "System/Rsrc/About"
+    license         = "Docu/BB-License"
+    changes         = ""
+    issues          = ""
+
+**)
+
+IMPORT
+    Stores, Models, TextModels, TextControllers, Integers;
+
+PROCEDURE Read(r: TextModels.Reader; VAR x: Integers.Integer);
+    VAR i, len, beg: INTEGER; ch: CHAR; buf: POINTER TO ARRAY OF CHAR;
+BEGIN
+    r.ReadChar(ch);
+    WHILE ~r.eot & (ch <= " ") DO r.ReadChar(ch) END;
+    ASSERT(~r.eot & (((ch >= "0") & (ch <= "9")) OR (ch = "-")));
+    beg := r.Pos() - 1; len := 0;
+    REPEAT INC(len); r.ReadChar(ch) UNTIL r.eot OR (ch < "0") OR (ch > "9");
+    NEW(buf, len + 1);
+    i := 0; r.SetPos(beg);
+    REPEAT r.ReadChar(buf[i]); INC(i) UNTIL i = len;
+    buf[i] := 0X;
+    Integers.ConvertFromString(buf^, x)
+END Read;
+
+PROCEDURE Write(w: TextModels.Writer; x: Integers.Integer);
+    VAR i: INTEGER;
+BEGIN
+    IF Integers.Sign(x) < 0 THEN w.WriteChar("-") END;
+    i := Integers.Digits10Of(x);
+    IF i # 0 THEN
+        REPEAT DEC(i); w.WriteChar(Integers.ThisDigit10(x, i)) UNTIL i = 0
+    ELSE w.WriteChar("0")
+    END
+END Write;
+
+PROCEDURE Compute*;
+    VAR beg, end, i, n: INTEGER; ch: CHAR;
+        s: Stores.Operation;
+        r: TextModels.Reader; w: TextModels.Writer; attr: TextModels.Attributes;
+        c: TextControllers.Controller;
+        x: Integers.Integer;
+BEGIN
+    c := TextControllers.Focus();
+    IF (c # NIL) & c.HasSelection() THEN
+        c.GetSelection(beg, end);
+        r := c.text.NewReader(NIL); r.SetPos(beg); r.ReadChar(ch);
+        WHILE ~r.eot & (beg < end) & (ch <= " ") DO r.ReadChar(ch); INC(beg) END;
+        IF ~r.eot & (beg < end) THEN
+            r.ReadPrev; Read(r, x);
+            end := r.Pos(); r.ReadPrev; attr :=r.attr;
+            IF (Integers.Sign(x) > 0) & (Integers.Compare(x, Integers.Long(MAX(LONGINT))) <= 0) THEN
+                n := SHORT(Integers.Short(x)); i := 2; x := Integers.Long(1);
+                WHILE i <= n DO x := Integers.Product(x, Integers.Long(i)); INC(i) END;
+                Models.BeginScript(c.text, "computation", s);
+                c.text.Delete(beg, end);
+                w := c.text.NewWriter(NIL); w.SetPos(beg); w.SetAttr(attr);
+                Write(w, x);
+                Models.EndScript(c.text, s)
+            END
+        END
+    END
+END Compute;
+
+END ObxFact.

samples/GAMS/transport.gms

@@ -0,0 +1,76 @@
+*Basic example of transport model from GAMS model library
+
+$Title  A Transportation Problem (TRNSPORT,SEQ=1)
+$Ontext
+
+This problem finds a least cost shipping schedule that meets
+requirements at markets and supplies at factories.
+
+
+Dantzig, G B, Chapter 3.3. In Linear Programming and Extensions.
+Princeton University Press, Princeton, New Jersey, 1963.
+
+This formulation is described in detail in:
+Rosenthal, R E, Chapter 2: A GAMS Tutorial. In GAMS: A User's Guide.
+The Scientific Press, Redwood City, California, 1988.
+
+The line numbers will not match those in the book because of these
+comments.
+
+$Offtext
+
+
+  Sets
+       i   canning plants   / seattle, san-diego /
+       j   markets          / new-york, chicago, topeka / ;
+  Parameters
+       a(i)  capacity of plant i in cases
+         /    seattle     350
+              san-diego   600  /
+       b(j)  demand at market j in cases
+         /    new-york    325
+              chicago     300
+              topeka      275  / ;
+  Table d(i,j)  distance in thousands of miles
+                    new-york       chicago      topeka
+      seattle          2.5           1.7          1.8
+      san-diego        2.5           1.8          1.4  ;
+  Scalar f  freight in dollars per case per thousand miles  /90/ ;
+  Parameter c(i,j)  transport cost in thousands of dollars per case ;
+            c(i,j) = f * d(i,j) / 1000 ;
+  Variables
+       x(i,j)  shipment quantities in cases
+       z       total transportation costs in thousands of dollars ;
+
+  Positive Variable x ;
+
+  Equations
+       cost        define objective function
+       supply(i)   observe supply limit at plant i
+       demand(j)   satisfy demand at market j ;
+
+  cost ..        z  =e=  sum((i,j), c(i,j)*x(i,j)) ;
+
+  supply(i) ..   sum(j, x(i,j))  =l=  a(i) ;
+
+  demand(j) ..   sum(i, x(i,j))  =g=  b(j) ;
+
+  Model transport /all/ ;
+
+  Solve transport using lp minimizing z ;
+
+  Display x.l, x.m ;
+
+$ontext
+#user model library stuff
+Main topic Basic GAMS
+Featured item 1 Trnsport model
+Featured item 2
+Featured item 3
+Featured item 4
+Description
+Basic example of transport model from GAMS model library
+
+
+
+$offtext

samples/GLSL/SimpleLighting.gl2.frag

@@ -0,0 +1,9 @@
+static const char* SimpleFragmentShader = STRINGIFY(
+
+varying vec4 FrontColor;
+
+void main(void)
+{
+    gl_FragColor = FrontColor;
+}
+);

samples/GLSL/myfragment.frg

@@ -0,0 +1,6 @@
+varying vec4 v_color;
+
+void main()
+{
+	gl_FragColor = v_color;
+}

samples/GLSL/myvertex.vrx

@@ -0,0 +1,12 @@
+uniform mat4 u_MVPMatrix;
+
+attribute vec4 a_position;
+attribute vec4 a_color;
+
+varying vec4 v_color;
+
+void main()
+{
+	v_color = a_color;
+	gl_Position =  u_MVPMatrix * pos;
+}

samples/GLSL/recurse1.frag

@@ -0,0 +1,48 @@
+#version 330 core
+
+// cross-unit recursion
+
+void main() {}
+
+// two-level recursion
+
+float cbar(int);
+
+void cfoo(float)
+{
+	cbar(2);
+}
+
+// four-level, out of order
+
+void CB();
+void CD();
+void CA() { CB(); }
+void CC() { CD(); }
+
+// high degree
+
+void CBT();
+void CDT();
+void CAT() { CBT(); CBT(); CBT(); }
+void CCT() { CDT(); CDT(); CBT(); }
+
+// not recursive
+
+void norA() {}
+void norB() { norA(); }
+void norC() { norA(); }
+void norD() { norA(); }
+void norE() { norB(); }
+void norF() { norB(); }
+void norG() { norE(); }
+void norH() { norE(); }
+void norI() { norE(); }
+
+// not recursive, but with a call leading into a cycle if ignoring direction
+
+void norcA() { }
+void norcB() { norcA(); }
+void norcC() { norcB(); }
+void norcD() { norcC(); norcB(); } // head of cycle
+void norcE() { norcD(); } // lead into cycle

samples/Groovy/script.gvy

@@ -0,0 +1,2 @@
+#!/usr/bin/env groovy
+println "Hello World"

samples/Groovy/template.grt

@@ -0,0 +1,9 @@
+html {
+  head {
+    component "bootstrap"
+    title "Bootstrap Template"
+  }
+  
+  html {
+  }
+}

samples/Groovy/template.gtpl

@@ -0,0 +1,9 @@
+html {
+  head {
+    title "Example Template"
+  }
+  
+  body {
+    p "This is a quick template example"
+  }
+}

samples/Isabelle/HelloWorld.thy

@@ -0,0 +1,46 @@
+theory HelloWorld
+imports Main
+begin
+
+section{*Playing around with Isabelle*}
+
+text{* creating a lemma with the name hello_world*}
+lemma hello_world: "True" by simp
+
+(*inspecting it*)
+thm hello_world
+
+text{* defining a string constant HelloWorld *}
+
+definition HelloWorld :: "string" where
+  "HelloWorld \<equiv> ''Hello World!''"
+
+(*reversing HelloWorld twice yilds HelloWorld again*)
+theorem "rev (rev HelloWorld) = HelloWorld"
+  by (fact List.rev_rev_ident)
+
+text{*now we delete the already proven List.rev_rev_ident lema and show it by hand*}
+declare List.rev_rev_ident[simp del]
+hide_fact List.rev_rev_ident
+
+(*It's trivial since we can just 'execute' it*)
+corollary "rev (rev HelloWorld) = HelloWorld"
+  apply(simp add: HelloWorld_def)
+  done
+
+text{*does it hold in general?*}
+theorem rev_rev_ident:"rev (rev l) = l"
+  proof(induction l)
+  case Nil thus ?case by simp
+  next
+  case (Cons l ls)
+    assume IH: "rev (rev ls) = ls"
+    have "rev (l#ls) = (rev ls) @ [l]" by simp
+    hence "rev (rev (l#ls)) = rev ((rev ls) @ [l])" by simp
+    also have "\<dots> = [l] @ rev (rev ls)" by simp
+    finally show "rev (rev (l#ls)) = l#ls" using IH by simp
+  qed
+
+corollary "\<forall>(l::string). rev (rev l) = l" by(fastforce intro: rev_rev_ident)
+
+end

samples/JavaScript/helloHanaEndpoint.xsjs

@@ -0,0 +1,24 @@
+/*
+ invoke endpoint by calling in a browser:
+ http://<hanaserveradress>:<xsengineport(usually 8000)>/<path>/<to>/<endpoint>/helloHanaMath.xsjslib?x=4&y=2
+ e.g.:
+ http://192.168.178.20:8000/geekflyer/linguist/helloHanaEndpoint.xsjs?x=4&y=2
+ */
+
+var hanaMath = $.import("./helloHanaMath.xsjslib");
+
+var x = parseFloat($.request.parameters.get("x"));
+var y = parseFloat($.request.parameters.get("y"));
+
+
+var result = hanaMath.multiply(x, y);
+
+var output = {
+    title: "Hello HANA XS - do some simple math",
+    input: {x: x, y: y},
+    result: result
+};
+
+$.response.contentType = "application/json";
+$.response.statusCode = $.net.http.OK;
+$.response.setBody(JSON.stringify(output));

samples/JavaScript/helloHanaMath.xsjslib

@@ -0,0 +1,9 @@
+/* simple hana xs demo library, which can be used by multiple endpoints */
+
+function multiply(x, y) {
+    return x * y;
+}
+
+function add(x, y) {
+    return x + y;
+}

samples/JavaScript/intro.js.frag

@@ -0,0 +1,7 @@
+(function(window, angular) {
+
+Array.prototype.last = function() {
+    return this[this.length-1];
+};
+
+var app = angular.module('ConwayGameOfLife', []);

samples/JavaScript/outro.js.frag

@@ -0,0 +1,3 @@
+
+})(window, window.angular);
+

samples/Mathematica/MiscCalculations.nb

@@ -0,0 +1,232 @@
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+
+(*** Wolfram Notebook File ***)
+(* http://www.wolfram.com/nb *)
+
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+
+(*CacheID: 234*)
+(* Internal cache information:
+NotebookFileLineBreakTest
+NotebookFileLineBreakTest
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+WindowFrame->Normal*)
+
+(* Beginning of Notebook Content *)
+Notebook[{
+
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+rc1neaqOQ6OGqXLQurmYKexKyno4Ds8LLqSZKmhhhvxW6cjWCTjNNHaoe6+F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+     "]]}},
+  AspectRatio->NCache[GoldenRatio^(-1), 0.6180339887498948],
+  Axes->True,
+  AxesLabel->{None, None},
+  AxesOrigin->{0, 0},
+  Method->{},
+  PlotRange->{{0, 10}, {-1.623796532045525, 2.3025850725858823`}},
+  PlotRangeClipping->True,
+  PlotRangePadding->{
+    Scaled[0.02], 
+    Scaled[0.02]}]], "Output",
+ CellChangeTimes->{3.6112717778594217`*^9}]
+}, Open  ]]
+},
+WindowSize->{716, 833},
+WindowMargins->{{Automatic, 214}, {Automatic, 26}},
+FrontEndVersion->"9.0 for Microsoft Windows (64-bit) (January 25, 2013)",
+StyleDefinitions->"Default.nb"
+]
+(* End of Notebook Content *)
+
+(* Internal cache information *)
+(*CellTagsOutline
+CellTagsIndex->{}
+*)
+(*CellTagsIndex
+CellTagsIndex->{}
+*)
+(*NotebookFileOutline
+Notebook[{
+Cell[CellGroupData[{
+Cell[579, 22, 224, 6, 52, "Input"],
+Cell[806, 30, 211, 6, 31, "Output"]
+}, Open  ]],
+Cell[CellGroupData[{
+Cell[1054, 41, 155, 3, 31, "Input"],
+Cell[1212, 46, 130, 3, 31, "Output"]
+}, Open  ]],
+Cell[CellGroupData[{
+Cell[1379, 54, 137, 4, 31, "Input"],
+Cell[1519, 60, 105, 2, 31, "Output"]
+}, Open  ]],
+Cell[CellGroupData[{
+Cell[1661, 67, 113, 3, 31, "Input"],
+Cell[1777, 72, 90, 1, 31, "Output"]
+}, Open  ]],
+Cell[CellGroupData[{
+Cell[1904, 78, 102, 2, 31, "Input"],
+Cell[2009, 82, 321, 8, 31, "Output"]
+}, Open  ]],
+Cell[CellGroupData[{
+Cell[2367, 95, 191, 4, 52, "Input"],
+Cell[2561, 101, 131, 3, 31, "Output"]
+}, Open  ]],
+Cell[2707, 107, 94, 1, 31, "Input"],
+Cell[CellGroupData[{
+Cell[2826, 112, 299, 8, 52, "Input"],
+Cell[3128, 122, 3019, 57, 265, "Output"]
+}, Open  ]]
+}
+]
+*)
+
+(* End of internal cache information *)

samples/Mathematica/Problem12.m

@@ -0,0 +1,8 @@
+(* ::Package:: *)
+
+(* Problem12.m *)
+(* Author: William Woodruff *)
+(* Problem: What is the value of the first triangle number to have over five hundred divisors? *)
+
+Do[If[Length[Divisors[Binomial[i + 1, 2]]] > 500, 
+  Print[Binomial[i + 1, 2]]; Break[]], {i, 1000000}]

samples/Nix/nginx.nix

@@ -0,0 +1,80 @@
+{ stdenv, fetchurl, fetchgit, openssl, zlib, pcre, libxml2, libxslt, expat
+, rtmp ? false
+, fullWebDAV ? false
+, syslog ? false
+, moreheaders ? false, ...}:
+
+let
+  version = "1.4.4";
+  mainSrc = fetchurl {
+    url = "http://nginx.org/download/nginx-${version}.tar.gz";
+    sha256 = "1f82845mpgmhvm151fhn2cnqjggw9w7cvsqbva9rb320wmc9m63w";
+  };
+
+  rtmp-ext = fetchgit {
+    url = git://github.com/arut/nginx-rtmp-module.git;
+    rev = "1cfb7aeb582789f3b15a03da5b662d1811e2a3f1";
+    sha256 = "03ikfd2l8mzsjwx896l07rdrw5jn7jjfdiyl572yb9jfrnk48fwi";
+  };
+
+  dav-ext = fetchgit {
+    url = git://github.com/arut/nginx-dav-ext-module.git;
+    rev = "54cebc1f21fc13391aae692c6cce672fa7986f9d";
+    sha256 = "1dvpq1fg5rslnl05z8jc39sgnvh3akam9qxfl033akpczq1bh8nq";
+  };
+
+  syslog-ext = fetchgit {
+    url = https://github.com/yaoweibin/nginx_syslog_patch.git;
+    rev = "165affd9741f0e30c4c8225da5e487d33832aca3";
+    sha256 = "14dkkafjnbapp6jnvrjg9ip46j00cr8pqc2g7374z9aj7hrvdvhs";
+  };
+
+  moreheaders-ext = fetchgit {
+    url = https://github.com/agentzh/headers-more-nginx-module.git;
+    rev = "refs/tags/v0.23";
+    sha256 = "12pbjgsxnvcf2ff2i2qdn39q4cm5czlgrng96j8ml4cgxvnbdh39";
+  };
+in
+
+stdenv.mkDerivation rec {
+  name = "nginx-${version}";
+  src = mainSrc;
+
+  buildInputs = [ openssl zlib pcre libxml2 libxslt
+    ] ++ stdenv.lib.optional fullWebDAV expat;
+
+  patches = if syslog then [ "${syslog-ext}/syslog_1.4.0.patch" ] else [];
+
+  configureFlags = [
+    "--with-http_ssl_module"
+    "--with-http_spdy_module"
+    "--with-http_xslt_module"
+    "--with-http_sub_module"
+    "--with-http_dav_module"
+    "--with-http_gzip_static_module"
+    "--with-http_secure_link_module"
+    "--with-ipv6"
+    # Install destination problems
+    # "--with-http_perl_module"
+  ] ++ stdenv.lib.optional rtmp "--add-module=${rtmp-ext}"
+    ++ stdenv.lib.optional fullWebDAV "--add-module=${dav-ext}"
+    ++ stdenv.lib.optional syslog "--add-module=${syslog-ext}"
+    ++ stdenv.lib.optional moreheaders "--add-module=${moreheaders-ext}";
+
+  preConfigure = ''
+    export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I${libxml2 }/include/libxml2"
+  '';
+
+  # escape example
+  postInstall = ''
+    mv $out/sbin $out/bin ''' ''${
+   ${ if true then ${ "" } else false }
+  '';
+
+  meta = {
+    description = "A reverse proxy and lightweight webserver";
+    maintainers = [ stdenv.lib.maintainers.raskin];
+    platforms = stdenv.lib.platforms.all;
+    inherit version;
+  };
+}

samples/Ox/IJCEmet2009.oxh

@@ -0,0 +1,72 @@
+/** Replicate Imai, Jain and Ching Econometrica 2009 (incomplete).
+
+**/
+#include "IJCEmet2009.h"
+
+Kapital::Kapital(L,const N,const entrant,const exit,const KP){
+	StateVariable(L,N);
+	this.entrant = entrant;
+	this.exit = exit;
+	this.KP = KP;
+	actual = Kbar*vals/(N-1);
+	upper = log(actual~.Inf);
+	}
+
+Kapital::Transit(FeasA) {
+	decl ent =CV(entrant), stayout = FeasA[][exit.pos], tprob, sigu = CV(KP[SigU]);
+	if (!v && !ent) return { <0>, ones(stayout) };
+	tprob = ent ? probn( (upper-CV(KP[Kbe]))/sigu )
+	           : probn( (upper-(CV(KP[Kb0])+CV(KP[Kb2])*upper[v])) / sigu );
+	tprob = tprob[1:] - tprob[:N-1];
+	return { vals, tprob.*(1-stayout)+(1.0~zeros(1,N-1)).*stayout };
+	}
+
+FirmEntry::Run() {
+	Initialize();
+	GenerateSample();
+	BDP->BayesianDP();
+	}
+
+FirmEntry::Initialize() {
+	Rust::Initialize(Reachable,0);
+	sige = new StDeviations("sige",<0.3,0.3>,0);
+	entrant = new LaggedAction("entrant",d);
+	KP = new array[Kparams];
+		KP[Kbe] = new Positive("be",0.5);
+		KP[Kb0] = new Free("b0",0.0);
+		KP[Kb1] = new Determined("b1",0.0);
+		KP[Kb2] = new Positive("b2",0.4);
+		KP[SigU] = new Positive("sigu",0.4);
+	EndogenousStates(K = new Kapital("K",KN,entrant,d,KP),entrant);
+	SetDelta(new Probability("delta",0.85));
+	kcoef = new Positive("kcoef",0.1);
+	ecost = new Negative("ec",-0.4);
+	CreateSpaces();
+	}
+
+FirmEntry::GenerateSample() {
+	Volume = LOUD;
+	EM = new ValueIteration(0);
+//	EM -> Solve(0,0);
+	data = new DataSet(0,EM);
+	data->Simulate(DataN,DataT,0,FALSE);
+	data->Print("firmentry.xls");
+	BDP = new ImaiJainChing("FMH",data,EM,ecost,sige,kcoef,KP,delta);
+	}
+
+/** Capital stock can be positive only for incumbents.
+**/
+FirmEntry::Reachable()	{ return CV(entrant)*CV(K) ? 0 : new FirmEntry() ;	}
+
+/** The one period return.
+<DD>
+<pre>U = </pre>
+</DD>
+**/
+FirmEntry::Utility()  {
+	decl ent = CV(entrant),
+		 u =
+		     ent*CV(ecost)+(1-ent)*CV(kcoef)*AV(K)
+		   | 0.0;
+	return u;
+	}

samples/Ox/ParallelObjective.ox

@@ -0,0 +1,63 @@
+/** Client and Server classes for parallel optimization using CFMPI.**/
+#include "ParallelObjective.h"
+
+/** Set up MPI Client-Server support for objective optimization.
+@param obj `Objective' to parallelize
+@param DONOTUSECLIENT TRUE (default): client node does no object evaluation<br>FALSE after putting servers to work Client node does one evaluation.
+**/
+ParallelObjective(obj,DONOTUSECLIENT) {
+	if (isclass(obj.p2p)) {oxwarning("P2P object already exists for "+obj.L+". Nothing changed"); return;}
+	obj.p2p = new P2P(DONOTUSECLIENT,new ObjClient(obj),new ObjServer(obj));
+	}
+
+ObjClient::ObjClient(obj) { this.obj = obj;    }
+
+ObjClient::Execute() {    }
+
+ObjServer::ObjServer(obj) {
+    this.obj = obj;
+    basetag = P2P::STOP_TAG+1;
+    iml = obj.NvfuncTerms;
+    Nparams = obj.nstruct;
+    }
+
+/** Wait on the objective client.
+**/
+ObjServer::Loop(nxtmsgsz) {
+    Nparams = nxtmsgsz;   //free param length is no greater than Nparams
+    if (Volume>QUIET) println("ObjServer server ",ID," Nparams ",Nparams);
+    Server::Loop(Nparams);
+    Recv(ANY_TAG);                      //receive the ending parameter vector
+    obj->Encode(Buffer[:Nparams-1]);   //encode it.
+    }
+
+/** Do the objective evaluation.
+Receive structural parameter vector and `Objective::Encode`() it.
+Call `Objective::vfunc`().
+@return Nparams (max. length of next expected message);
+**/
+ObjServer::Execute() {
+	obj->Decode(Buffer[:obj.nfree-1]);
+	Buffer = obj.cur.V[] = obj->vfunc();
+    if (Volume>QUIET) println("Server Executive: ",ID," vfunc[0]= ",Buffer[0]);
+	return obj.nstruct;
+	}
+
+CstrServer::CstrServer(obj) { ObjServer(obj);	}
+
+SepServer::SepServer(obj) { ObjServer(obj);	}
+
+CstrServer::Execute() {
+	obj->Encode(Buffer);
+	obj->Lagrangian(0);
+	return rows(Buffer = obj.cur->Vec());
+	}
+
+/** Separable objective evaluations.
+**/
+SepServer::Execute() {
+	obj.Kvar.v = imod(Tag-basetag,obj.K);
+	obj->Encode(Buffer,TRUE);
+	Buffer = obj.Kvar->PDF() * obj->vfunc();
+	return obj.NvfuncTerms;
+	}

samples/Ox/particle.oxo

@@ -0,0 +1,38 @@
+nldge::ParticleLogLikeli()
+{	decl it, ip,
+		 mss, mbas, ms, my, mx, vw, vwi, dws,
+		 mhi, mhdet, loglikeli, mData,
+		 vxm, vxs, mxm=<>, mxsu=<>, mxsl=<>,
+		 time, timeall, timeran=0, timelik=0, timefun=0, timeint=0, timeres=0;
+
+	mData = GetData(m_asY);
+	mhdet = sqrt((2*M_PI)^m_cY * determinant(m_mMSbE.^2));		// covariance determinant
+	mhi   = invert(m_mMSbE.^2);					// invert covariance of measurement shocks
+
+	ms 	  = m_vSss + zeros(m_cPar, m_cS);			// start particles
+	mx 	  = m_vXss + zeros(m_cPar, m_cX);			// steady state of state and policy
+
+	loglikeli = 0;							// init likelihood
+																								//timeall=timer();
+	for(it = 0; it < sizer(mData); it++)
+	{
+		mss = rann(m_cPar, m_cSS) * m_mSSbE;			// state noise
+		fg(&ms, ms, mx, mss);					// transition prior as proposal
+		mx = m_oApprox.FastInterpolate(ms); 			// interpolate
+		fy(&my, ms, mx, zeros(m_cPar, m_cMS));			// evaluate importance weights
+		my -= mData[it][];					// observation error
+
+		vw = exp(-0.5 * outer(my,mhi,'d')' )/mhdet;		// vw = exp(-0.5 * sumr(my*mhi .*my ) )/mhdet;
+
+		vw = vw .== .NaN .? 0 .: vw;				// no policy can happen for extrem particles
+		dws = sumc(vw);
+		if(dws==0) return -.Inf;				// or extremely wrong parameters
+		loglikeli += log(dws/m_cPar)	;			// loglikelihood contribution
+																										//timelik += (timer()-time)/100;
+																										//time=timer();
+		vwi = resample(vw/dws)-1;				// selection step in c++
+		ms = ms[vwi][];						// on normalized weights
+		mx = mx[vwi][];
+																	}
+	return loglikeli;
+}

samples/Pan/test.pan

@@ -0,0 +1,54 @@
+object template pantest;
+
+# Very simple pan test file
+"/long/decimal" = 123;
+"/long/octal" = 0755;
+"/long/hexadecimal" = 0xFF;
+
+"/double/simple" = 0.01;
+"/double/pi" = 3.14159;
+"/double/exponent" = 1e-8;
+"/double/scientific" = 1.3E10;
+
+"/string/single" = 'Faster, but escapes like \t, \n and \x3d don''t work, but '' should work.';
+"/string/double" = "Slower, but escapes like \t, \n and \x3d do work";
+
+variable TEST = 2;
+
+"/x2" = to_string(TEST);
+"/x2" ?= 'Default value';
+
+"/x3" = 1 + 2 + value("/long/decimal");
+
+"/x4" = undef;
+
+"/x5" = null;
+
+variable e ?= error("Test error message");
+
+# include gmond config for services-monitoring
+include { 'site/ganglia/gmond/services-monitoring' };
+
+"/software/packages"=pkg_repl("httpd","2.2.3-43.sl5.3",PKG_ARCH_DEFAULT);
+"/software/packages"=pkg_repl("php");
+
+# Example function
+function show_things_view_for_stuff = {
+    thing = ARGV[0];
+    foreach( i; mything; STUFF ) {
+        if ( thing == mything ) {
+            return( true );
+        } else {
+            return SELF;
+        };
+    };
+    false;
+};
+
+variable HERE = <<EOF;
+; This example demonstrates an in-line heredoc style config file
+[main]
+awesome = true
+EOF
+
+variable small = false;#This should be highlighted normally again.

samples/Pike/Error.pmod

@@ -0,0 +1,38 @@
+#pike __REAL_VERSION__
+
+constant Generic = __builtin.GenericError;
+
+constant Index = __builtin.IndexError;
+
+constant BadArgument = __builtin.BadArgumentError;
+
+constant Math = __builtin.MathError;
+
+constant Resource = __builtin.ResourceError;
+
+constant Permission = __builtin.PermissionError;
+
+constant Decode = __builtin.DecodeError;
+
+constant Cpp = __builtin.CppError;
+
+constant Compilation = __builtin.CompilationError;
+
+constant MasterLoad = __builtin.MasterLoadError;
+
+constant ModuleLoad = __builtin.ModuleLoadError;
+
+//! Returns an Error object for any argument it receives. If the
+//! argument already is an Error object or is empty, it does nothing.
+object mkerror(mixed error)
+{
+  if (error == UNDEFINED)
+    return error;
+  if (objectp(error) && error->is_generic_error)
+    return error;
+  if (arrayp(error))
+    return Error.Generic(@error);
+  if (stringp(error))
+    return Error.Generic(error);
+  return Error.Generic(sprintf("%O", error));
+}

samples/Pike/FakeFile.pike

@@ -0,0 +1,360 @@
+#pike __REAL_VERSION__
+
+//! A string wrapper that pretends to be a @[Stdio.File] object
+//! in addition to some features of a @[Stdio.FILE] object.
+
+
+//! This constant can be used to distinguish a FakeFile object
+//! from a real @[Stdio.File] object.
+constant is_fake_file = 1;
+
+protected string data;
+protected int ptr;
+protected int(0..1) r;
+protected int(0..1) w;
+protected int mtime;
+
+protected function read_cb;
+protected function read_oob_cb;
+protected function write_cb;
+protected function write_oob_cb;
+protected function close_cb;
+
+//! @seealso
+//!   @[Stdio.File()->close()]
+int close(void|string direction) {
+  direction = lower_case(direction||"rw");
+  int cr = has_value(direction, "r");
+  int cw = has_value(direction, "w");
+
+  if(cr) {
+    r = 0;
+  }
+
+  if(cw) {
+    w = 0;
+  }
+
+  // FIXME: Close callback
+  return 1;
+}
+
+//! @decl void create(string data, void|string type, void|int pointer)
+//! @seealso
+//!   @[Stdio.File()->create()]
+void create(string _data, void|string type, int|void _ptr) {
+  if(!_data) error("No data string given to FakeFile.\n");
+  data = _data;
+  ptr = _ptr;
+  mtime = time();
+  if(type) {
+    type = lower_case(type);
+    if(has_value(type, "r"))
+      r = 1;
+    if(has_value(type, "w"))
+      w = 1;
+  }
+  else
+    r = w = 1;
+}
+
+protected string make_type_str() {
+  string type = "";
+  if(r) type += "r";
+  if(w) type += "w";
+  return type;
+}
+
+//! @seealso
+//!   @[Stdio.File()->dup()]
+this_program dup() {
+  return this_program(data, make_type_str(), ptr);
+}
+
+//! Always returns 0.
+//! @seealso
+//!   @[Stdio.File()->errno()]
+int errno() { return 0; }
+
+//! Returns size and the creation time of the string.
+Stdio.Stat stat() {
+  Stdio.Stat st = Stdio.Stat();
+  st->size = sizeof(data);
+  st->mtime=st->ctime=mtime;
+  st->atime=time();
+  return st;
+}
+
+//! @seealso
+//!   @[Stdio.File()->line_iterator()]
+String.SplitIterator line_iterator(int|void trim) {
+  if(trim)
+    return String.SplitIterator( data-"\r", '\n' );
+  return String.SplitIterator( data, '\n' );
+}
+
+protected mixed id;
+
+//! @seealso
+//!   @[Stdio.File()->query_id()]
+mixed query_id() { return id; }
+
+//! @seealso
+//!   @[Stdio.File()->set_id()]
+void set_id(mixed _id) { id = _id; }
+
+//! @seealso
+//!   @[Stdio.File()->read_function()]
+function(:string) read_function(int nbytes) {
+  return lambda() { return read(nbytes); };
+}
+
+//! @seealso
+//!   @[Stdio.File()->peek()]
+int(-1..1) peek(int|float|void timeout) {
+  if(!r) return -1;
+  if(ptr >= sizeof(data)) return 0;
+  return 1;
+}
+
+//! Always returns 0.
+//! @seealso
+//!   @[Stdio.File()->query_address()]
+string query_address(void|int(0..1) is_local) { return 0; }
+
+//! @seealso
+//!   @[Stdio.File()->read()]
+string read(void|int(0..) len, void|int(0..1) not_all) {
+  if(!r) return 0;
+  if (len < 0) error("Cannot read negative number of characters.\n");
+  int start=ptr;
+  ptr += len;
+  if(zero_type(len) || ptr>sizeof(data))
+    ptr = sizeof(data);
+
+  // FIXME: read callback
+  return data[start..ptr-1];
+}
+
+//! @seealso
+//!   @[Stdio.FILE()->gets()]
+string gets() {
+  if(!r) return 0;
+  string ret;
+  sscanf(data,"%*"+(string)ptr+"s%[^\n]",ret);
+  if(ret)
+  {
+    ptr+=sizeof(ret)+1;
+    if(ptr>sizeof(data))
+    {
+      ptr=sizeof(data);
+      if(!sizeof(ret))
+	ret = 0;
+    }
+  }
+
+  // FIXME: read callback
+  return ret;
+}
+
+//! @seealso
+//!   @[Stdio.FILE()->getchar()]
+int getchar() {
+  if(!r) return 0;
+  int c;
+  if(catch(c=data[ptr]))
+    c=-1;
+  else
+    ptr++;
+
+  // FIXME: read callback
+  return c;
+}
+
+//! @seealso
+//!   @[Stdio.FILE()->unread()]
+void unread(string s) {
+  if(!r) return;
+  if(data[ptr-sizeof(s)..ptr-1]==s)
+    ptr-=sizeof(s);
+  else
+  {
+    data=s+data[ptr..];
+    ptr=0;
+  }
+}
+
+//! @seealso
+//!   @[Stdio.File()->seek()]
+int seek(int pos, void|int mult, void|int add) {
+  if(mult)
+    pos = pos*mult+add;
+  if(pos<0)
+  {
+    pos = sizeof(data)+pos;
+    if( pos < 0 )
+	pos = 0;
+  }
+  ptr = pos;
+  if( ptr > strlen( data ) )
+      ptr = strlen(data);
+  return ptr;
+}
+
+//! Always returns 1.
+//! @seealso
+//!   @[Stdio.File()->sync()]
+int(1..1) sync() { return 1; }
+
+//! @seealso
+//!   @[Stdio.File()->tell()]
+int tell() { return ptr; }
+
+//! @seealso
+//!   @[Stdio.File()->truncate()]
+int(0..1) truncate(int length) {
+  data = data[..length-1];
+  return sizeof(data)==length;
+}
+
+//! @seealso
+//!   @[Stdio.File()->write()]
+int(-1..) write(string|array(string) str, mixed ... extra) {
+  if(!w) return -1;
+  if(arrayp(str)) str=str*"";
+  if(sizeof(extra)) str=sprintf(str, @extra);
+
+  if(ptr==sizeof(data)) {
+    data += str;
+    ptr = sizeof(data);
+  }
+  else if(sizeof(str)==1)
+    data[ptr++] = str[0];
+  else {
+    data = data[..ptr-1] + str + data[ptr+sizeof(str)..];
+    ptr += sizeof(str);
+  }
+
+  // FIXME: write callback
+  return sizeof(str);
+}
+
+//! @seealso
+//!   @[Stdio.File()->set_blocking]
+void set_blocking() {
+  close_cb = 0;
+  read_cb = 0;
+  read_oob_cb = 0;
+  write_cb = 0;
+  write_oob_cb = 0;
+}
+
+//! @seealso
+//!   @[Stdio.File()->set_blocking_keep_callbacks]
+void set_blocking_keep_callbacks() { }
+
+//! @seealso
+//!   @[Stdio.File()->set_blocking]
+void set_nonblocking(function rcb, function wcb, function ccb,
+		     function rocb, function wocb) {
+  read_cb = rcb;
+  write_cb = wcb;
+  close_cb = ccb;
+  read_oob_cb = rocb;
+  write_oob_cb = wocb;
+}
+
+//! @seealso
+//!   @[Stdio.File()->set_blocking_keep_callbacks]
+void set_nonblocking_keep_callbacks() { }
+
+
+//! @seealso
+//!   @[Stdio.File()->set_close_callback]
+void set_close_callback(function cb) { close_cb = cb; }
+
+//! @seealso
+//!   @[Stdio.File()->set_read_callback]
+void set_read_callback(function cb) { read_cb = cb; }
+
+//! @seealso
+//!   @[Stdio.File()->set_read_oob_callback]
+void set_read_oob_callback(function cb) { read_oob_cb = cb; }
+
+//! @seealso
+//!   @[Stdio.File()->set_write_callback]
+void set_write_callback(function cb) { write_cb = cb; }
+
+//! @seealso
+//!   @[Stdio.File()->set_write_oob_callback]
+void set_write_oob_callback(function cb) { write_oob_cb = cb; }
+
+
+//! @seealso
+//!   @[Stdio.File()->query_close_callback]
+function query_close_callback() { return close_cb; }
+
+//! @seealso
+//!   @[Stdio.File()->query_read_callback]
+function query_read_callback() { return read_cb; }
+
+//! @seealso
+//!   @[Stdio.File()->query_read_oob_callback]
+function query_read_oob_callback() { return read_oob_cb; }
+
+//! @seealso
+//!   @[Stdio.File()->query_write_callback]
+function query_write_callback() { return write_cb; }
+
+//! @seealso
+//!   @[Stdio.File()->query_write_oob_callback]
+function query_write_oob_callback() { return write_oob_cb; }
+
+string _sprintf(int t) {
+  return t=='O' && sprintf("%O(%d,%O)", this_program, sizeof(data),
+			   make_type_str());
+}
+
+
+// FakeFile specials.
+
+//! A FakeFile can be casted to a string.
+mixed cast(string to) {
+  switch(to) {
+  case "string": return data;
+  case "object": return this;
+  }
+  error("Can not cast object to %O.\n", to);
+}
+
+//! Sizeof on a FakeFile returns the size of its contents.
+int(0..) _sizeof() {
+  return sizeof(data);
+}
+
+//! @ignore
+
+#define NOPE(X) mixed X (mixed ... args) { error("This is a FakeFile. %s is not available.\n", #X); }
+NOPE(assign);
+NOPE(async_connect);
+NOPE(connect);
+NOPE(connect_unix);
+NOPE(open);
+NOPE(open_socket);
+NOPE(pipe);
+NOPE(tcgetattr);
+NOPE(tcsetattr);
+
+// Stdio.Fd
+NOPE(dup2);
+NOPE(lock); // We could implement this
+NOPE(mode); // We could implement this
+NOPE(proxy); // We could implement this
+NOPE(query_fd);
+NOPE(read_oob);
+NOPE(set_close_on_exec);
+NOPE(set_keepalive);
+NOPE(trylock); // We could implement this
+NOPE(write_oob);
+
+//! @endignore

samples/Prolog/format_spec.pl

@@ -0,0 +1,260 @@
+:- module(format_spec, [ format_error/2
+                       , format_spec/2
+                       , format_spec//1
+                       , spec_arity/2
+                       , spec_types/2
+                       ]).
+
+:- use_module(library(dcg/basics), [eos//0, integer//1, string_without//2]).
+:- use_module(library(error)).
+:- use_module(library(when), [when/2]).
+
+% TODO loading this module is optional
+% TODO it's for my own convenience during development
+%:- use_module(library(mavis)).
+
+%% format_error(+Goal, -Error:string) is nondet.
+%
+%  True if Goal exhibits an Error in its format string. The
+%  Error string describes what is wrong with Goal. Iterates each
+%  error on backtracking.
+%
+%  Goal may be one of the following predicates:
+%
+%    * format/2
+%    * format/3
+%    * debug/3
+format_error(format(Format,Args), Error) :-
+    format_error_(Format, Args,Error).
+format_error(format(_,Format,Args), Error) :-
+    format_error_(Format,Args,Error).
+format_error(debug(_,Format,Args), Error) :-
+    format_error_(Format,Args,Error).
+
+format_error_(Format,Args,Error) :-
+    format_spec(Format, Spec),
+    !,
+    is_list(Args),
+    spec_types(Spec, Types),
+    types_error(Args, Types, Error).
+format_error_(Format,_,Error) :-
+    % \+ format_spec(Format, _),
+    format(string(Error), "Invalid format string: ~q", [Format]).
+
+types_error(Args, Types, Error) :-
+    length(Types, TypesLen),
+    length(Args, ArgsLen),
+    TypesLen =\= ArgsLen,
+    !,
+    format( string(Error)
+          , "Wrong argument count. Expected ~d, got ~d"
+          , [TypesLen, ArgsLen]
+          ).
+types_error(Args, Types, Error) :-
+    types_error_(Args, Types, Error).
+
+types_error_([Arg|_],[Type|_],Error) :-
+    ground(Arg),
+    \+ is_of_type(Type,Arg),
+    message_to_string(error(type_error(Type,Arg),_Location),Error).
+types_error_([_|Args],[_|Types],Error) :-
+    types_error_(Args, Types, Error).
+
+
+% check/0 augmentation
+:- multifile check:checker/2.
+:- dynamic check:checker/2.
+check:checker(format_spec:checker, "format/2 strings and arguments").
+
+:- dynamic format_fail/3.
+
+checker :-
+    prolog_walk_code([ module_class([user])
+                     , infer_meta_predicates(false)
+                     , autoload(false)  % format/{2,3} are always loaded
+                     , undefined(ignore)
+                     , trace_reference(_)
+                     , on_trace(check_format)
+                     ]),
+    retract(format_fail(Goal,Location,Error)),
+    print_message(warning, format_error(Goal,Location,Error)),
+    fail.  % iterate all errors
+checker.  % succeed even if no errors are found
+
+check_format(Module:Goal, _Caller, Location) :-
+    predicate_property(Module:Goal, imported_from(Source)),
+    memberchk(Source, [system,prolog_debug]),
+    can_check(Goal),
+    format_error(Goal, Error),
+    assert(format_fail(Goal, Location, Error)),
+    fail.
+check_format(_,_,_).  % succeed to avoid printing goals
+
+% true if format_error/2 can check this goal
+can_check(Goal) :-
+    once(clause(format_error(Goal,_),_)).
+
+prolog:message(format_error(Goal,Location,Error)) -->
+    prolog:message_location(Location),
+    ['~n    In goal: ~q~n    ~s'-[Goal,Error]].
+
+
+%% format_spec(-Spec)//
+%
+%  DCG for parsing format strings. It doesn't yet generate format
+%  strings from a spec.  See format_spec/2 for details.
+format_spec([]) -->
+    eos.
+format_spec([escape(Numeric,Modifier,Action)|Rest]) -->
+    "~",
+    numeric_argument(Numeric),
+    modifier_argument(Modifier),
+    action(Action),
+    format_spec(Rest).
+format_spec([text(String)|Rest]) -->
+    { when((ground(String);ground(Codes)),string_codes(String, Codes)) },
+    string_without("~", Codes),
+    { Codes \= [] },
+    format_spec(Rest).
+
+
+%% format_spec(+Format, -Spec:list) is semidet.
+%
+%  Parse a format string.  Each element of Spec is one of the following:
+%
+%    * `text(Text)` - text sent to the output as is
+%    * `escape(Num,Colon,Action)` - a format escape
+%
+%  `Num` represents the optional numeric portion of an esape. `Colon`
+%  represents the optional colon in an escape. `Action` is an atom
+%  representing the action to be take by this escape.
+format_spec(Format, Spec) :-
+    when((ground(Format);ground(Codes)),text_codes(Format, Codes)),
+    once(phrase(format_spec(Spec), Codes, [])).
+
+%% spec_arity(+FormatSpec, -Arity:positive_integer) is det.
+%
+%  True if FormatSpec requires format/2 to have Arity arguments.
+spec_arity(Spec, Arity) :-
+    spec_types(Spec, Types),
+    length(Types, Arity).
+
+
+%% spec_types(+FormatSpec, -Types:list(type)) is det.
+%
+%  True if FormatSpec requires format/2 to have arguments of Types. Each
+%  value of Types is a type as described by error:has_type/2. This
+%  notion of types is compatible with library(mavis).
+spec_types(Spec, Types) :-
+    phrase(spec_types(Spec), Types).
+
+spec_types([]) -->
+    [].
+spec_types([Item|Items]) -->
+    item_types(Item),
+    spec_types(Items).
+
+item_types(text(_)) -->
+    [].
+item_types(escape(Numeric,_,Action)) -->
+    numeric_types(Numeric),
+    action_types(Action).
+
+numeric_types(number(_)) -->
+    [].
+numeric_types(character(_)) -->
+    [].
+numeric_types(star) -->
+    [number].
+numeric_types(nothing) -->
+    [].
+
+action_types(Action) -->
+    { atom_codes(Action, [Code]) },
+    { action_types(Code, Types) },
+    phrase(Types).
+
+
+%% text_codes(Text:text, Codes:codes).
+text_codes(Var, Codes) :-
+    var(Var),
+    !,
+    string_codes(Var, Codes).
+text_codes(Atom, Codes) :-
+    atom(Atom),
+    !,
+    atom_codes(Atom, Codes).
+text_codes(String, Codes) :-
+    string(String),
+    !,
+    string_codes(String, Codes).
+text_codes(Codes, Codes) :-
+    is_of_type(codes, Codes).
+
+
+numeric_argument(number(N)) -->
+    integer(N).
+numeric_argument(character(C)) -->
+    "`",
+    [C].
+numeric_argument(star) -->
+    "*".
+numeric_argument(nothing) -->
+    "".
+
+
+modifier_argument(colon) -->
+    ":".
+modifier_argument(no_colon) -->
+    \+ ":".
+
+
+action(Action) -->
+    [C],
+    { is_action(C) },
+    { atom_codes(Action, [C]) }.
+
+
+%% is_action(+Action:integer) is semidet.
+%% is_action(-Action:integer) is multi.
+%
+%  True if Action is a valid format/2 action character. Iterates all
+%  acceptable action characters, if Action is unbound.
+is_action(Action) :-
+    action_types(Action, _).
+
+%% action_types(?Action:integer, ?Types:list(type))
+%
+%  True if Action consumes arguments matching Types. An action (like
+%  `~`), which consumes no arguments, has `Types=[]`.  For example,
+%
+%      ?- action_types(0'~, Types).
+%      Types = [].
+%      ?- action_types(0'a, Types).
+%      Types = [atom].
+action_types(0'~, []).
+action_types(0'a, [atom]).
+action_types(0'c, [integer]).  % specifically, a code
+action_types(0'd, [integer]).
+action_types(0'D, [integer]).
+action_types(0'e, [float]).
+action_types(0'E, [float]).
+action_types(0'f, [float]).
+action_types(0'g, [float]).
+action_types(0'G, [float]).
+action_types(0'i, [any]).
+action_types(0'I, [integer]).
+action_types(0'k, [any]).
+action_types(0'n, []).
+action_types(0'N, []).
+action_types(0'p, [any]).
+action_types(0'q, [any]).
+action_types(0'r, [integer]).
+action_types(0'R, [integer]).
+action_types(0's, [text]).
+action_types(0'@, [callable]).
+action_types(0't, []).
+action_types(0'|, []).
+action_types(0'+, []).
+action_types(0'w, [any]).
+action_types(0'W, [any, list]).

samples/Prolog/func.pl

@@ -0,0 +1,194 @@
+:- module(func, [ op(675, xfy, ($))
+                , op(650, xfy, (of))
+                , ($)/2
+                , (of)/2
+                ]).
+:- use_module(library(list_util), [xfy_list/3]).
+:- use_module(library(function_expansion)).
+:- use_module(library(arithmetic)).
+:- use_module(library(error)).
+
+
+% true if the module whose terms are being read has specifically
+% imported library(func).
+wants_func :-
+    prolog_load_context(module, Module),
+    Module \== func,  % we don't want func sugar ourselves
+    predicate_property(Module:of(_,_),imported_from(func)).
+
+
+%%  compile_function(+Term, -In, -Out, -Goal) is semidet.
+%
+%   True if Term represents a function from In to Out
+%   implemented by calling Goal.  This multifile hook is
+%   called by $/2 and of/2 to convert a term into a goal.
+%   It's used at compile time for macro expansion.
+%   It's used at run time to handle functions which aren't
+%   known at compile time.
+%   When called as a hook, Term is guaranteed to be =nonvar=.
+%
+%   For example, to treat library(assoc) terms as functions which
+%   map a key to a value, one might define:
+%
+%       :- multifile compile_function/4.
+%       compile_function(Assoc, Key, Value, Goal) :-
+%           is_assoc(Assoc),
+%           Goal = get_assoc(Key, Assoc, Value).
+%
+%   Then one could write:
+%
+%       list_to_assoc([a-1, b-2, c-3], Assoc),
+%       Two = Assoc $ b,
+:- multifile compile_function/4.
+compile_function(Var, _, _, _) :-
+    % variables storing functions must be evaluated at run time
+    % and can't be compiled, a priori, into a goal
+    var(Var),
+    !,
+    fail.
+compile_function(Expr, In, Out, Out is Expr) :-
+    % arithmetic expression of one variable are simply evaluated
+    \+ string(Expr),  % evaluable/1 throws exception with strings
+    arithmetic:evaluable(Expr),
+    term_variables(Expr, [In]).
+compile_function(F, In, Out, func:Goal) :-
+    % composed functions
+    function_composition_term(F),
+    user:function_expansion(F, func:Functor, true),
+    Goal =.. [Functor,In,Out].
+compile_function(F, In, Out, Goal) :-
+    % string interpolation via format templates
+    format_template(F),
+    ( atom(F) ->
+        Goal = format(atom(Out), F, In)
+    ; string(F) ->
+        Goal = format(string(Out), F, In)
+    ; error:has_type(codes, F) ->
+        Goal = format(codes(Out), F, In)
+    ; fail  % to be explicit
+    ).
+compile_function(Dict, In, Out, Goal) :-
+    is_dict(Dict),
+    Goal = get_dict(In, Dict, Out).
+
+%%	$(+Function, +Argument) is det.
+%
+%	Apply Function to an Argument.  A Function is any predicate
+%	whose final argument generates output and whose penultimate argument
+%	accepts input.
+%
+%	This is realized by expanding function application to chained
+%	predicate calls at compile time.  Function application itself can
+%	be chained.
+%
+%	==
+%	Reversed = reverse $ sort $ [c,d,b].
+%	==
+:- meta_predicate $(2,+).
+$(_,_) :-
+    throw(error(permission_error(call, predicate, ($)/2),
+          context(_, '$/2 must be subject to goal expansion'))).
+
+user:function_expansion($(F,X), Y, Goal) :-
+    wants_func,
+    ( func:compile_function(F, X, Y, Goal) ->
+        true
+    ; var(F) -> Goal =      % defer until run time
+        ( func:compile_function(F, X, Y, P) ->
+            call(P)
+        ; call(F, X, Y)
+        )
+    ; Goal = call(F, X, Y)
+    ).
+
+
+%%	of(+F, +G) is det.
+%
+%	Creates a new function by composing F and G.  The functions are
+%	composed at compile time to create a new, compiled predicate which
+%	behaves like a function.  Function composition can be chained.
+%	Composed functions can also be applied with $/2.
+%
+%	==
+%	Reversed = reverse of sort $ [c,d,b].
+%	==
+:- meta_predicate of(2,2).
+of(_,_).
+
+
+%%  format_template(Format) is semidet.
+%
+%   True if Format is a template string suitable for format/3.
+%   The current check is very naive and should be improved.
+format_template(Format) :-
+    atom(Format), !,
+    atom_codes(Format, Codes),
+    format_template(Codes).
+format_template(Format) :-
+    string(Format),
+    !,
+    string_codes(Format, Codes),
+    format_template(Codes).
+format_template(Format) :-
+    error:has_type(codes, Format),
+    memberchk(0'~, Format).  % ' fix syntax highlighting
+
+
+% True if the argument is a function composition term
+function_composition_term(of(_,_)).
+
+% Converts a function composition term into a list of functions to compose
+functions_to_compose(Term, Funcs) :-
+    functor(Term, Op, 2),
+    Op = (of),
+    xfy_list(Op, Term, Funcs).
+
+% Thread a state variable through a list of functions.  This is similar
+% to a DCG expansion, but much simpler.
+thread_state([], [], Out, Out).
+thread_state([F|Funcs], [Goal|Goals], In, Out) :-
+    ( compile_function(F, In, Tmp, Goal) ->
+        true
+    ; var(F) ->
+        instantiation_error(F)
+    ; F =.. [Functor|Args],
+      append(Args, [In, Tmp], NewArgs),
+      Goal =.. [Functor|NewArgs]
+    ),
+    thread_state(Funcs, Goals, Tmp, Out).
+
+user:function_expansion(Term, func:Functor, true) :-
+    wants_func,
+    functions_to_compose(Term, Funcs),
+    debug(func, 'building composed function for: ~w', [Term]),
+    variant_sha1(Funcs, Sha),
+    format(atom(Functor), 'composed_function_~w', [Sha]),
+    debug(func, '  name: ~s', [Functor]),
+    ( func:current_predicate(Functor/2) ->
+        debug(func, '  composed predicate already exists', [])
+    ; true ->
+        reverse(Funcs, RevFuncs),
+        thread_state(RevFuncs, Threaded, In, Out),
+        xfy_list(',', Body, Threaded),
+        Head =.. [Functor, In, Out],
+        func:assert(Head :- Body),
+        func:compile_predicates([Functor/2])
+    ).
+
+
+% support foo(x,~,y) evaluation
+user:function_expansion(Term, Output, Goal) :-
+    wants_func,
+    compound(Term),
+
+    % has a single ~ argument
+    setof( X
+         , ( arg(X,Term,Arg), Arg == '~' )
+         , [N]
+         ),
+
+    % replace ~ with a variable
+    Term =.. [Name|Args0],
+    nth1(N, Args0, ~, Rest),
+    nth1(N, Args, Output, Rest),
+    Goal =.. [Name|Args].

samples/Python/Cinema4DPythonPlugin.pyp

@@ -0,0 +1,241 @@
+#
+# Cinema 4D Python Plugin Source file
+# https://github.com/nr-plugins/nr-xpresso-alignment-tools
+#
+
+# coding: utf-8
+#
+# Copyright (C) 2012, Niklas Rosenstein
+# Licensed under the GNU General Public License
+#
+# XPAT - XPresso Alignment Tools
+# ==============================
+#
+# The XPAT plugin provides tools for aligning nodes in the Cinema 4D
+# XPresso Editor, improving readability of complex XPresso set-ups
+# immensively.
+#
+# Requirements:
+# - MAXON Cinema 4D R13+
+# - Python `c4dtools` library. Get it from
+#   http://github.com/NiklasRosenstein/c4dtools
+#
+# Author:  Niklas Rosenstein <rosensteinniklas@gmail.com>
+# Version: 1.1 (01/06/2012)
+
+import os
+import sys
+import json
+import c4d
+import c4dtools
+import itertools
+
+from c4d.modules import graphview as gv
+from c4dtools.misc import graphnode
+
+res, importer = c4dtools.prepare(__file__, __res__)
+settings = c4dtools.helpers.Attributor({
+    'options_filename': res.file('config.json'),
+})
+
+def align_nodes(nodes, mode, spacing):
+    r"""
+    Aligns the passed nodes horizontally and apply the minimum spacing
+    between them.
+    """
+
+    modes = ['horizontal', 'vertical']
+    if not nodes:
+        return
+    if mode not in modes:
+        raise ValueError('invalid mode, choices are: ' + ', '.join(modes))
+
+    get_0 = lambda x: x.x
+    get_1 = lambda x: x.y
+    set_0 = lambda x, v: setattr(x, 'x', v)
+    set_1 = lambda x, v: setattr(x, 'y', v)
+
+    if mode == 'vertical':
+        get_0, get_1 = get_1, get_0
+        set_0, set_1 = set_1, set_0
+
+    nodes = [graphnode.GraphNode(n) for n in nodes]
+    nodes.sort(key=lambda n: get_0(n.position))
+    midpoint = graphnode.find_nodes_mid(nodes)
+
+    # Apply the spacing between the nodes relative to the coordinate-systems
+    # origin. We can offset them later because we now the nodes' midpoint
+    # already.
+    first_position = nodes[0].position
+    new_positions = []
+    prev_offset = 0
+    for node in nodes:
+        # Compute the relative position of the node.
+        position = node.position
+        set_0(position, get_0(position) - get_0(first_position))
+
+        # Obtain it's size and check if the node needs to be re-placed.
+        size = node.size
+        if get_0(position) < prev_offset:
+            set_0(position, prev_offset)
+            prev_offset += spacing + get_0(size)
+        else:
+            prev_offset = get_0(position) + get_0(size) + spacing
+
+        set_1(position, get_1(midpoint))
+        new_positions.append(position)
+
+    # Center the nodes again.
+    bbox_size = prev_offset - spacing
+    bbox_size_2 = bbox_size * 0.5
+    for node, position in itertools.izip(nodes, new_positions):
+        # TODO: Here is some issue with offsetting the nodes. Some value
+        # dependent on the spacing must be added here to not make the nodes
+        # move horizontally/vertically although they have already been
+        # aligned.
+        set_0(position, get_0(midpoint) + get_0(position) - bbox_size_2 + spacing)
+        node.position = position
+
+def align_nodes_shortcut(mode, spacing):
+    master = gv.GetMaster(0)
+    if not master:
+        return
+
+    root = master.GetRoot()
+    if not root:
+        return
+
+    nodes = graphnode.find_selected_nodes(root)
+    if nodes:
+        master.AddUndo()
+        align_nodes(nodes, mode, spacing)
+        c4d.EventAdd()
+
+    return True
+
+class XPAT_Options(c4dtools.helpers.Attributor):
+    r"""
+    This class organizes the options for the XPAT plugin, i.e.
+    validating, loading and saving.
+    """
+
+    defaults = {
+        'hspace': 50,
+        'vspace': 20,
+    }
+
+    def __init__(self, filename=None):
+        super(XPAT_Options, self).__init__()
+        self.load(filename)
+
+    def load(self, filename=None):
+        r"""
+        Load the options from file pointed to by filename. If filename
+        is None, it defaults to the filename defined in options in the
+        global scope.
+        """
+
+        if filename is None:
+            filename = settings.options_filename
+
+        if os.path.isfile(filename):
+            self.dict_ = self.defaults.copy()
+            with open(filename, 'rb') as fp:
+                self.dict_.update(json.load(fp))
+        else:
+            self.dict_ = self.defaults.copy()
+            self.save()
+
+    def save(self, filename=None):
+        r"""
+        Save the options defined in XPAT_Options instance to HD.
+        """
+
+        if filename is None:
+            filename = settings.options_filename
+
+        values = dict((k, v) for k, v in self.dict_.iteritems()
+                      if k in self.defaults)
+        with open(filename, 'wb') as fp:
+            json.dump(values, fp)
+
+class XPAT_OptionsDialog(c4d.gui.GeDialog):
+    r"""
+    This class implements the behavior of the XPAT options dialog,
+    taking care of storing the options on the HD and loading them
+    again on startup.
+    """
+
+    # c4d.gui.GeDialog
+
+    def CreateLayout(self):
+        return self.LoadDialogResource(res.DLG_OPTIONS)
+
+    def InitValues(self):
+        self.SetLong(res.EDT_HSPACE, options.hspace)
+        self.SetLong(res.EDT_VSPACE, options.vspace)
+        return True
+
+    def Command(self, id, msg):
+        if id == res.BTN_SAVE:
+            options.hspace = self.GetLong(res.EDT_HSPACE)
+            options.vspace = self.GetLong(res.EDT_VSPACE)
+            options.save()
+            self.Close()
+        return True
+
+class XPAT_Command_OpenOptionsDialog(c4dtools.plugins.Command):
+    r"""
+    This Cinema 4D CommandData plugin opens the XPAT options dialog
+    when being executed.
+    """
+
+    def __init__(self):
+        super(XPAT_Command_OpenOptionsDialog, self).__init__()
+        self._dialog = None
+
+    @property
+    def dialog(self):
+        if not self._dialog:
+            self._dialog = XPAT_OptionsDialog()
+        return self._dialog
+
+    # c4dtools.plugins.Command
+
+    PLUGIN_ID = 1029621
+    PLUGIN_NAME = res.string.XPAT_COMMAND_OPENOPTIONSDIALOG()
+    PLUGIN_HELP = res.string.XPAT_COMMAND_OPENOPTIONSDIALOG_HELP()
+
+    # c4d.gui.CommandData
+
+    def Execute(self, doc):
+        return self.dialog.Open(c4d.DLG_TYPE_MODAL)
+
+class XPAT_Command_AlignHorizontal(c4dtools.plugins.Command):
+
+    PLUGIN_ID = 1029538
+    PLUGIN_NAME = res.string.XPAT_COMMAND_ALIGNHORIZONTAL()
+    PLUGIN_ICON = res.file('xpresso-align-h.png')
+    PLUGIN_HELP = res.string.XPAT_COMMAND_ALIGNHORIZONTAL_HELP()
+
+    def Execute(self, doc):
+        align_nodes_shortcut('horizontal', options.hspace)
+        return True
+
+class XPAT_Command_AlignVertical(c4dtools.plugins.Command):
+
+    PLUGIN_ID = 1029539
+    PLUGIN_NAME = res.string.XPAT_COMMAND_ALIGNVERTICAL()
+    PLUGIN_ICON = res.file('xpresso-align-v.png')
+    PLUGIN_HELP = res.string.XPAT_COMMAND_ALIGNVERTICAL_HELP()
+
+    def Execute(self, doc):
+        align_nodes_shortcut('vertical', options.vspace)
+        return True
+
+options = XPAT_Options()
+
+if __name__ == '__main__':
+    c4dtools.plugins.main()
+
+

samples/QMake/complex.pro

@@ -0,0 +1,30 @@
+# This QMake file is complex, as it usese
+# boolean operators and function calls
+
+QT += core gui
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+# We could use some OpenGL right now
+contains(QT_CONFIG, opengl) | contains(QT_CONFIG, opengles2) {
+   QT += opengl
+} else {
+   DEFINES += QT_NO_OPENGL
+}
+
+TEMPLATE = app
+win32 {
+    TARGET = BlahApp
+    RC_FILE = Resources/winres.rc
+}
+!win32 { TARGET = blahapp }
+
+# Let's add a PRI file!
+include(functions.pri)
+
+SOURCES += file.cpp
+
+HEADERS  += file.h
+
+FORMS    += file.ui
+
+RESOURCES += res.qrc

samples/QMake/functions.pri

@@ -0,0 +1,8 @@
+# QMake include file that calls some functions
+# and does nothing else...
+
+exists(.git/HEAD) {
+    system(git rev-parse HEAD >rev.txt)
+} else {
+    system(echo ThisIsNotAGitRepo >rev.txt)
+}

samples/QMake/qmake.script!

@@ -0,0 +1,2 @@
+#!/usr/bin/qmake
+message(This is QMake.)

samples/QMake/simple.pro

@@ -0,0 +1,17 @@
+# Simple QMake file
+
+CONFIG += qt
+QT += core gui
+TEMPLATE = app
+TARGET = simpleapp
+
+SOURCES += file.cpp \
+    file2.c \
+    This/Is/Folder/file3.cpp
+
+HEADERS += file.h \
+    file2.h \
+    This/Is/Folder/file3.h
+
+FORMS += This/Is/Folder/file3.ui \
+    Test.ui

samples/R/scholar.Rd

@@ -0,0 +1,25 @@
+\docType{package}
+\name{scholar}
+\alias{scholar}
+\alias{scholar-package}
+\title{scholar}
+\source{
+  The package reads data from
+  \url{http://scholar.google.com}.  Dates and citation
+  counts are estimated and are determined automatically by
+  a computer program. Use at your own risk.
+}
+\description{
+  The \code{scholar} package provides functions to extract
+  citation data from Google Scholar.  There are also
+  convenience functions for comparing multiple scholars and
+  predicting h-index scores based on past publication
+  records.
+}
+\note{
+  A complementary set of Google Scholar functions can be
+  found at
+  \url{http://biostat.jhsph.edu/~jleek/code/googleCite.r}.
+  The \code{scholar} package was developed independently.
+}
+

samples/Ruby/filenames/.pryrc

@@ -0,0 +1,19 @@
+Pry.config.commands.import Pry::ExtendedCommands::Experimental
+
+Pry.config.pager = false
+
+Pry.config.color = false
+
+Pry.config.commands.alias_command "lM", "ls -M"
+
+Pry.config.commands.command "add", "Add a list of numbers together" do |*args|
+  output.puts "Result is: #{args.map(&:to_i).inject(&:+)}"
+end
+
+Pry.config.history.should_save = false
+
+Pry.config.prompt = [proc { "input> " },
+                     proc { "     | " }]
+
+# Disable pry-buggy-plug:
+Pry.plugins["buggy-plug"].disable!

samples/SAS/data.sas

@@ -0,0 +1,17 @@
+/* Example DATA step code for linguist */
+
+libname source 'C:\path\to\file'
+
+data work.working_copy;
+	set source.original_file.sas7bdat;
+run;
+
+data work.working_copy;
+	set work.working_copy;
+	if Purge = 1 then delete;
+run;
+
+data work.working_copy;
+	set work.working_copy;
+	if ImportantVariable = . then MissingFlag = 1;
+run;

samples/SAS/proc.sas

@@ -0,0 +1,15 @@
+/* PROC examples for Linguist */
+
+proc surveyselect data=work.data out=work.boot method=urs reps=20000 seed=2156 sampsize=28 outhits;
+	samplingunit Site;	
+run;
+
+PROC MI data=work.boot out=work.bootmi nimpute=30 seed=5686 round = 1;
+	By Replicate;
+	VAR Variable1 Variable2;
+run;
+
+proc logistic data=work.bootmi descending;
+	By Replicate _Imputation_;
+	model Outcome = Variable1 Variable2 / risklimits;
+run;

samples/STON/Array.ston

@@ -0,0 +1 @@
+[1, 2, 3]

samples/STON/Dictionary.ston

@@ -0,0 +1 @@
+{#a : 1, #b : 2}

samples/STON/Rectangle.ston

@@ -0,0 +1,4 @@
+Rectangle {
+   #origin : Point [ -40, -15 ],
+   #corner : Point [ 60, 35 ]
+ }

samples/STON/TestDomainObject.ston

@@ -0,0 +1,15 @@
+TestDomainObject {
+  #created : DateAndTime [ '2012-02-14T16:40:15+01:00' ],
+  #modified : DateAndTime [ '2012-02-14T16:40:18+01:00' ],
+  #integer : 39581,
+  #float : 73.84789359463944,
+  #description : 'This is a test',
+  #color : #green,
+  #tags : [
+    #two,
+    #beta,
+    #medium
+  ],
+  #bytes : ByteArray [ 'afabfdf61d030f43eb67960c0ae9f39f' ],
+  #boolean : false
+}

samples/STON/ZNResponse.ston

@@ -0,0 +1,30 @@
+ZnResponse {
+   #headers : ZnHeaders {
+     #headers : ZnMultiValueDictionary {
+        'Date' : 'Fri, 04 May 2012 20:09:23 GMT',
+        'Modification-Date' : 'Thu, 10 Feb 2011 08:32:30 GMT',
+        'Content-Length' : '113',
+        'Server' : 'Zinc HTTP Components 1.0',
+        'Vary' : 'Accept-Encoding',
+        'Connection' : 'close',
+        'Content-Type' : 'text/html;charset=utf-8'
+     }
+   },
+   #entity : ZnStringEntity {
+     #contentType : ZnMimeType {
+        #main : 'text',
+        #sub : 'html',
+        #parameters : {
+            'charset' : 'utf-8'
+        }
+     },
+     #contentLength : 113,
+     #string : '<html>\n<head><title>Small</title></head>\n<body><h1>Small</h1><p>This is a small HTML document</p></body>\n</html>\n',
+     #encoder : ZnUTF8Encoder { }
+   },
+   #statusLine : ZnStatusLine {
+     #version : 'HTTP/1.1',
+     #code : 200,
+     #reason : 'OK'
+   }
+ }

samples/STON/methodProperties.ston

@@ -0,0 +1,24 @@
+{
+	"class" : {
+		 },
+	"instance" : {
+		"clientList:listElement:" : "dkh 03/20/2014 16:27",
+		"copyObjectMenuAction:selectionIndex:" : "dkh 10/13/2013 10:20",
+		"definitionForSelection:" : "dkh 10/13/2013 10:15",
+		"editMenuActionSpec" : "dkh 10/13/2013 10:19",
+		"itemSelected:listElement:selectedIndex:shiftPressed:" : "dkh 10/20/2013 11:06",
+		"menuActionSpec:" : "dkh 10/19/2013 17:12",
+		"repository:" : "dkh 10/19/2013 17:36",
+		"theList" : "dkh 10/12/2013 15:51",
+		"versionInfoBlock:" : "dkh 10/19/2013 17:08",
+		"versionInfoDiffVsSelection:selectedIndex:" : "dkh 10/19/2013 17:48",
+		"versionInfoDiffVsWorkingCopy:selectedIndex:" : "dkh 10/20/2013 12:36",
+		"versionInfoSelect:selectedIndex:" : "dkh 10/12/2013 17:04",
+		"versionInfos" : "dkh 10/19/2013 17:13",
+		"versionSummaryIsClosing" : "dkh 10/20/2013 10:19",
+		"windowIsClosing:" : "dkh 10/20/2013 10:39",
+		"windowLabel" : "dkh 05/20/2014 11:00",
+		"windowLocation" : "dkh 05/23/2014 10:17",
+		"windowName" : "dkh 10/12/2013 16:00",
+		"workingCopy" : "dkh 10/12/2013 16:16",
+		"workingCopy:" : "dkh 10/12/2013 16:17" } }

samples/STON/properties.ston

@@ -0,0 +1,19 @@
+{
+	"category" : "Topez-Server-Core",
+	"classinstvars" : [
+		 ],
+	"classvars" : [
+		 ],
+	"commentStamp" : "",
+	"instvars" : [
+		"workingCopy",
+		"repository",
+		"versionInfos",
+		"versionInfoBlock",
+		"selectedVersionInfo",
+		"versionInfoSummaryWindowId" ],
+	"name" : "TDVersionInfoBrowser",
+	"pools" : [
+		 ],
+	"super" : "TDAbstractMonticelloToolBuilder",
+	"type" : "normal" }

samples/Slim/sample.slim

@@ -0,0 +1,31 @@
+doctype html
+html
+  head
+    title Slim Examples
+    meta name="keywords" content="template language"
+    meta name="author" content=author
+    javascript:
+      alert('Slim supports embedded javascript!')
+
+  body
+    h1 Markup examples
+
+    #content
+      p This example shows you how a basic Slim file looks like.
+
+      == yield
+
+      - unless items.empty?
+        table
+          - for item in items do
+            tr
+              td.name = item.name
+              td.price = item.price
+      - else
+        p
+         | No items found.  Please add some inventory.
+           Thank you!
+
+    div id="footer"
+      = render 'footer'
+      | Copyright © #{year} #{author}

samples/Standard ML/Foo.ML

@@ -0,0 +1,75 @@
+
+structure LazyBase:> LAZY_BASE =
+   struct
+      type 'a lazy = unit -> 'a
+
+      exception Undefined
+
+      fun delay f = f
+
+      fun force f = f()
+
+      val undefined = fn () => raise Undefined
+   end
+
+structure LazyMemoBase:> LAZY_BASE =
+   struct 
+
+      datatype 'a susp = NotYet of unit -> 'a
+                       | Done of 'a
+
+      type 'a lazy = unit -> 'a susp ref
+
+      exception Undefined
+
+      fun delay f = 
+          let 
+             val r = ref (NotYet f)
+          in
+             fn () => r
+          end
+
+      fun force f = 
+          case f() of
+             ref (Done x) => x
+           | r as ref (NotYet f') =>
+             let
+                val a = f'()
+             in
+                r := Done a
+              ; a
+             end
+
+      val undefined = fn () => raise Undefined
+   end
+
+functor LazyFn(B: LAZY_BASE): LAZY' =
+   struct
+
+      open B
+
+      fun inject x = delay (fn () => x)
+
+      fun isUndefined x =
+          (ignore (force x)
+         ; false)
+          handle Undefined => true
+                              
+      fun toString f x = if isUndefined x then "_|_" else f (force x)
+
+      fun eqBy p (x,y) = p(force x,force y)
+      fun eq (x,y) = eqBy op= (x,y)
+      fun compare p (x,y) = p(force x,force y)
+
+      structure Ops = 
+         struct 
+            val ! = force
+            val ? = inject
+         end
+
+      fun map f x = delay (fn () => f (force x))
+
+   end
+
+structure Lazy' = LazyFn(LazyBase)
+structure LazyMemo = LazyFn(LazyMemoBase)

samples/Swift/section-11.swift

@@ -0,0 +1,4 @@
+let apples = 3
+let oranges = 5
+let appleSummary = "I have \(apples) apples."
+let fruitSummary = "I have \(apples + oranges) pieces of fruit."

samples/Swift/section-13.swift

@@ -0,0 +1,8 @@
+var shoppingList = ["catfish", "water", "tulips", "blue paint"]
+shoppingList[1] = "bottle of water"
+
+var occupations = [
+    "Malcolm": "Captain",
+    "Kaylee": "Mechanic",
+ ]
+occupations["Jayne"] = "Public Relations"

samples/Swift/section-15.swift

@@ -0,0 +1,2 @@
+let emptyArray = String[]()
+let emptyDictionary = Dictionary<String, Float>()

samples/Swift/section-17.swift

@@ -0,0 +1 @@
+shoppingList = []   // Went shopping and bought everything.

samples/Swift/section-19.swift

@@ -0,0 +1,10 @@
+let individualScores = [75, 43, 103, 87, 12]
+var teamScore = 0
+for score in individualScores {
+    if score > 50 {
+        teamScore += 3
+    } else {
+        teamScore += 1
+    }
+}
+teamScore

samples/Swift/section-21.swift

@@ -0,0 +1,8 @@
+var optionalString: String? = "Hello"
+optionalString == nil
+
+var optionalName: String? = "John Appleseed"
+var greeting = "Hello!"
+if let name = optionalName {
+    greeting = "Hello, \(name)"
+}

samples/Swift/section-23.swift

@@ -0,0 +1,11 @@
+let vegetable = "red pepper"
+switch vegetable {
+    case "celery":
+        let vegetableComment = "Add some raisins and make ants on a log."
+    case "cucumber", "watercress":
+        let vegetableComment = "That would make a good tea sandwich."
+    case let x where x.hasSuffix("pepper"):
+        let vegetableComment = "Is it a spicy \(x)?"
+    default:
+        let vegetableComment = "Everything tastes good in soup."
+}

samples/Swift/section-25.swift

@@ -0,0 +1,14 @@
+let interestingNumbers = [
+    "Prime": [2, 3, 5, 7, 11, 13],
+    "Fibonacci": [1, 1, 2, 3, 5, 8],
+    "Square": [1, 4, 9, 16, 25],
+]
+var largest = 0
+for (kind, numbers) in interestingNumbers {
+    for number in numbers {
+        if number > largest {
+            largest = number
+        }
+    }
+}
+largest

samples/Swift/section-27.swift

@@ -0,0 +1,11 @@
+var n = 2
+while n < 100 {
+    n = n * 2
+}
+n
+
+var m = 2
+do {
+    m = m * 2
+} while m < 100
+m

samples/Swift/section-29.swift

@@ -0,0 +1,11 @@
+var firstForLoop = 0
+for i in 0..3 {
+    firstForLoop += i
+}
+firstForLoop
+
+var secondForLoop = 0
+for var i = 0; i < 3; ++i {
+    secondForLoop += 1
+}
+secondForLoop

samples/Swift/section-3.swift

@@ -0,0 +1 @@
+println("Hello, world")

samples/Swift/section-31.swift

@@ -0,0 +1,4 @@
+func greet(name: String, day: String) -> String {
+    return "Hello \(name), today is \(day)."
+}
+greet("Bob", "Tuesday")

samples/Swift/section-33.swift

@@ -0,0 +1,4 @@
+func getGasPrices() -> (Double, Double, Double) {
+    return (3.59, 3.69, 3.79)
+}
+getGasPrices()

samples/Swift/section-35.swift

@@ -0,0 +1,9 @@
+func sumOf(numbers: Int...) -> Int {
+    var sum = 0
+    for number in numbers {
+        sum += number
+    }
+    return sum
+}
+sumOf()
+sumOf(42, 597, 12)

samples/Swift/section-37.swift

@@ -0,0 +1,9 @@
+func returnFifteen() -> Int {
+    var y = 10
+    func add() {
+        y += 5
+    }
+    add()
+    return y
+}
+returnFifteen()

samples/Swift/section-39.swift

@@ -0,0 +1,8 @@
+func makeIncrementer() -> (Int -> Int) {
+    func addOne(number: Int) -> Int {
+        return 1 + number
+    }
+    return addOne
+}
+var increment = makeIncrementer()
+increment(7)

samples/Swift/section-41.swift

@@ -0,0 +1,13 @@
+func hasAnyMatches(list: Int[], condition: Int -> Bool) -> Bool {
+    for item in list {
+        if condition(item) {
+            return true
+        }
+    }
+    return false
+}
+func lessThanTen(number: Int) -> Bool {
+    return number < 10
+}
+var numbers = [20, 19, 7, 12]
+hasAnyMatches(numbers, lessThanTen)

samples/Swift/section-43.swift

@@ -0,0 +1,5 @@
+numbers.map({
+    (number: Int) -> Int in
+    let result = 3 * number
+    return result
+})

samples/Swift/section-45.swift

@@ -0,0 +1 @@
+numbers.map({ number in 3 * number })

samples/Swift/section-47.swift

@@ -0,0 +1 @@
+sort([1, 5, 3, 12, 2]) { $0 > $1 }

samples/Swift/section-49.swift

@@ -0,0 +1,6 @@
+class Shape {
+    var numberOfSides = 0
+    func simpleDescription() -> String {
+        return "A shape with \(numberOfSides) sides."
+    }
+}

samples/Swift/section-5.swift

@@ -0,0 +1,3 @@
+var myVariable = 42
+myVariable = 50
+let myConstant = 42

samples/Swift/section-51.swift

@@ -0,0 +1,3 @@
+var shape = Shape()
+shape.numberOfSides = 7
+var shapeDescription = shape.simpleDescription()

samples/Swift/section-53.swift

@@ -0,0 +1,12 @@
+class NamedShape {
+    var numberOfSides: Int = 0
+    var name: String
+
+    init(name: String) {
+       self.name = name
+    }
+
+    func simpleDescription() -> String {
+       return "A shape with \(numberOfSides) sides."
+    }
+}

samples/Swift/section-55.swift

@@ -0,0 +1,20 @@
+class Square: NamedShape {
+    var sideLength: Double
+
+    init(sideLength: Double, name: String) {
+        self.sideLength = sideLength
+        super.init(name: name)
+        numberOfSides = 4
+    }
+
+    func area() ->  Double {
+        return sideLength * sideLength
+    }
+
+    override func simpleDescription() -> String {
+        return "A square with sides of length \(sideLength)."
+    }
+}
+let test = Square(sideLength: 5.2, name: "my test square")
+test.area()
+test.simpleDescription()

samples/Swift/section-57.swift

@@ -0,0 +1,26 @@
+class EquilateralTriangle: NamedShape {
+    var sideLength: Double = 0.0
+
+    init(sideLength: Double, name: String) {
+        self.sideLength = sideLength
+        super.init(name: name)
+        numberOfSides = 3
+    }
+
+    var perimeter: Double {
+        get {
+             return 3.0 * sideLength
+        }
+        set {
+            sideLength = newValue / 3.0
+        }
+    }
+
+    override func simpleDescription() -> String {
+        return "An equilateral triagle with sides of length \(sideLength)."
+    }
+}
+var triangle = EquilateralTriangle(sideLength: 3.1, name: "a triangle")
+triangle.perimeter
+triangle.perimeter = 9.9
+triangle.sideLength

samples/Swift/section-59.swift

@@ -0,0 +1,21 @@
+class TriangleAndSquare {
+    var triangle: EquilateralTriangle {
+        willSet {
+            square.sideLength = newValue.sideLength
+        }
+    }
+    var square: Square {
+        willSet {
+            triangle.sideLength = newValue.sideLength
+        }
+    }
+    init(size: Double, name: String) {
+        square = Square(sideLength: size, name: name)
+        triangle = EquilateralTriangle(sideLength: size, name: name)
+    }
+}
+var triangleAndSquare = TriangleAndSquare(size: 10, name: "another test shape")
+triangleAndSquare.square.sideLength
+triangleAndSquare.triangle.sideLength
+triangleAndSquare.square = Square(sideLength: 50, name: "larger square")
+triangleAndSquare.triangle.sideLength

samples/Swift/section-61.swift

@@ -0,0 +1,8 @@
+class Counter {
+    var count: Int = 0
+    func incrementBy(amount: Int, numberOfTimes times: Int) {
+        count += amount * times
+    }
+}
+var counter = Counter()
+counter.incrementBy(2, numberOfTimes: 7)

samples/Swift/section-63.swift

@@ -0,0 +1,2 @@
+let optionalSquare: Square? = Square(sideLength: 2.5, name: "optional square")
+let sideLength = optionalSquare?.sideLength

samples/Swift/section-65.swift

@@ -0,0 +1,21 @@
+enum Rank: Int {
+    case Ace = 1
+    case Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten
+    case Jack, Queen, King
+    func simpleDescription() -> String {
+        switch self {
+            case .Ace:
+                return "ace"
+            case .Jack:
+                return "jack"
+            case .Queen:
+                return "queen"
+            case .King:
+                return "king"
+            default:
+                return String(self.toRaw())
+        }
+    }
+}
+let ace = Rank.Ace
+let aceRawValue = ace.toRaw()

samples/Swift/section-67.swift

@@ -0,0 +1,3 @@
+if let convertedRank = Rank.fromRaw(3) {
+    let threeDescription = convertedRank.simpleDescription()
+}

samples/Swift/section-69.swift

@@ -0,0 +1,17 @@
+enum Suit {
+    case Spades, Hearts, Diamonds, Clubs
+    func simpleDescription() -> String {
+        switch self {
+            case .Spades:
+                return "spades"
+            case .Hearts:
+                return "hearts"
+            case .Diamonds:
+                return "diamonds"
+            case .Clubs:
+                return "clubs"
+        }
+    }
+}
+let hearts = Suit.Hearts
+let heartsDescription = hearts.simpleDescription()

samples/Swift/section-7.swift

@@ -0,0 +1,3 @@
+let implicitInteger = 70
+let implicitDouble = 70.0
+let explicitDouble: Double = 70

samples/Swift/section-71.swift

@@ -0,0 +1,9 @@
+struct Card {
+    var rank: Rank
+    var suit: Suit
+    func simpleDescription() -> String {
+        return "The \(rank.simpleDescription()) of \(suit.simpleDescription())"
+    }
+}
+let threeOfSpades = Card(rank: .Three, suit: .Spades)
+let threeOfSpadesDescription = threeOfSpades.simpleDescription()

samples/Swift/section-73.swift

@@ -0,0 +1,14 @@
+enum ServerResponse {
+    case Result(String, String)
+    case Error(String)
+}
+
+let success = ServerResponse.Result("6:00 am", "8:09 pm")
+let failure = ServerResponse.Error("Out of cheese.")
+
+switch success {
+    case let .Result(sunrise, sunset):
+        let serverResponse = "Sunrise is at \(sunrise) and sunset is at \(sunset)."
+    case let .Error(error):
+        let serverResponse = "Failure...  \(error)"
+}

samples/Swift/section-75.swift

@@ -0,0 +1,4 @@
+protocol ExampleProtocol {
+     var simpleDescription: String { get }
+     mutating func adjust()
+}