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Initial stab case of filter_chain, a chaining filter system for text
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.DS_Store | ||
tmp | ||
pkg |
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== 0.1.0 / 2008-10-17 | ||
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* 1 major enhancement | ||
* Birthday! |
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History.txt | ||
Manifest.txt | ||
README.txt | ||
Rakefile | ||
bin/filter_chain | ||
lib/filter_chain.rb | ||
lib/filter_chain/filters/all.rb | ||
lib/filter_chain/filters/none.rb | ||
spec/.bacon | ||
spec/helper.rb | ||
spec/runner | ||
tasks/ann.rake | ||
tasks/autospec.rake | ||
tasks/bones.rake | ||
tasks/gem.rake | ||
tasks/git.rake | ||
tasks/manifest.rake | ||
tasks/notes.rake | ||
tasks/post_load.rake | ||
tasks/rdoc.rake | ||
tasks/rubyforge.rake | ||
tasks/setup.rb | ||
tasks/spec.rake | ||
tasks/svn.rake | ||
tasks/test.rake |
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filter_chain | ||
by James Tucker | ||
http://raggi.org | ||
http://github.com/raggi/filter_chain | ||
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--> EXPERIMENTAL! | ||
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== DESCRIPTION: | ||
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FIXME (describe your package) | ||
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== FEATURES/PROBLEMS: | ||
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* FIXME (list of features or problems) | ||
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== SYNOPSIS: | ||
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FIXME (code sample of usage) | ||
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== REQUIREMENTS: | ||
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* FIXME (list of requirements) | ||
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== INSTALL: | ||
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* FIXME (sudo gem install, anything else) | ||
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== LICENSE: | ||
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(The MIT License) | ||
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Copyright (c) 2008 James Tucker | ||
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Permission is hereby granted, free of charge, to any person obtaining | ||
a copy of this software and associated documentation files (the | ||
'Software'), to deal in the Software without restriction, including | ||
without limitation the rights to use, copy, modify, merge, publish, | ||
distribute, sublicense, and/or sell copies of the Software, and to | ||
permit persons to whom the Software is furnished to do so, subject to | ||
the following conditions: | ||
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The above copyright notice and this permission notice shall be | ||
included in all copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, | ||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | ||
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY | ||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, | ||
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE | ||
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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# Look in the tasks/setup.rb file for the various options that can be | ||
# configured in this Rakefile. The .rake files in the tasks directory | ||
# are where the options are used. | ||
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load 'tasks/setup.rb' | ||
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ensure_in_path 'lib' | ||
require 'filter_chain' | ||
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task :default => 'spec:run' | ||
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PROJ.name = 'filter_chain' | ||
PROJ.authors = 'James Tucker' | ||
PROJ.email = 'raggi@rubyforge.org' | ||
PROJ.url = 'http://github.com/raggi/filter_chain' | ||
# PROJ.rubyforge.name = 'filter_chain' | ||
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PROJ.exclude = %w(tmp$ bak$ ~$ CVS \.git \.hg \.svn ^pkg ^doc ^tmp \.DS_Store | ||
\.cvs \.svn \.hgignore \.gitignore \.dotest \.swp$ ~$) | ||
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# EOF |
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#!/usr/bin/env ruby | ||
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$DEBUG = true if ARGV.delete('-d') | ||
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usage = <<-USAGE | ||
Usage: #{$0} | ||
-d : set debugging | ||
-h : print this message | ||
Filter arguments are to be given in tuples, and form an ordered chain: | ||
tuple : description | ||
---------------------------------------------------------------------- | ||
+ "z" : adds a positive filter matching 'z' (output lines with 'z') | ||
- "r" : adds a negating filter matching 'r' (remove lines with 'r') | ||
f foo : adds a pre-defined filter named foo | ||
c foo : adds a pre-defined chain named foo | ||
Manually defined filters (+|-) use the ruby regular expression engine. | ||
Expression captures are printed if present, else the whole match is printed. | ||
Negated matches are not output, and non-matching and not negated data is | ||
printed. | ||
USAGE | ||
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abort usage if ARGV.delete('-h') || ARGV.size % 2 != 0 || ARGV.empty? | ||
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begin | ||
trap(:INT) { exit } | ||
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lib_path = File.expand_path(File.join(File.dirname(__FILE__), '..', 'lib')) | ||
$:.unshift lib_path unless $:.include? lib_path | ||
require 'filter_chain' | ||
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chain = FilterChain::Chain.new | ||
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until ARGV.empty? | ||
chain.add_filter case ARGV.shift | ||
when '+' | ||
FilterChain::Filter.new(%r(#{ARGV.shift}), true) | ||
when '-' | ||
FilterChain::Filter.new(%r(#{ARGV.shift}), false) | ||
when 'f' | ||
FilterChain.filter(ARGV.shift) | ||
when 'c' | ||
FilterChain.chain(ARGV.shift) | ||
else | ||
abort usage | ||
end | ||
end | ||
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until $stdin.eof? | ||
line = $stdin.readline | ||
case result = chain.match(line) | ||
when MatchData | ||
result.captures.empty? ? print(result.string) : puts(result.captures.join(', ')) | ||
when String | ||
print result | ||
end | ||
end | ||
rescue | ||
if $DEBUG | ||
abort $!.backtrace.join("\n\t") | ||
else | ||
abort $!.message | ||
end | ||
end |
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module FilterChain | ||
module Filters; end | ||
module Chains; end | ||
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def self.filter(name) | ||
class_name = name.split('_').map { |part| part.capitalize }.join | ||
require "filter_chain/filters/#{name}" | ||
Filters.const_get(class_name).new | ||
rescue LoadError | ||
raise "Could not load filter file: filter_chain/filters/#{name}" | ||
rescue NameError | ||
raise "Could not find filter class: FilterChain::Filters::#{class_name}" | ||
end | ||
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def self.chain(name) | ||
require "filter_chain/chains/#{name}" | ||
Chains.const_get(name.capitalize).new | ||
rescue LoadError | ||
raise "Could not load chain file: filter_chain/chains/#{name}" | ||
rescue NameError | ||
raise "Could not find chain class: FilterChain::Chains::#{name.capitalize}" | ||
end | ||
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class Filter | ||
attr_accessor :rexp, :positive | ||
def initialize(rexp = /^(.*)$/, positive = true) | ||
@rexp = rexp | ||
@positive = positive | ||
end | ||
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def match(line) | ||
if line =~ @rexp | ||
@positive ? Regexp.last_match : nil | ||
else | ||
line | ||
end | ||
end | ||
end | ||
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class Chain | ||
attr_accessor :filters | ||
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def initialize | ||
@filters = [] | ||
yield self if block_given? | ||
end | ||
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def add_filter(filter, positive = true) | ||
@filters ||= [] | ||
filter = case filter | ||
when Regexp | ||
filter = Filter.new(filter, positive) | ||
when Filter | ||
filter | ||
when Chain | ||
filter | ||
end | ||
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@filters << filter | ||
end | ||
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def pos(filter) | ||
add_filter(filter, true) | ||
end | ||
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def neg(filter) | ||
add_filter(filter, false) | ||
end | ||
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def match(line) | ||
@filters.each do |filter| | ||
case result = filter.match(line) | ||
when line | ||
next | ||
when nil | ||
return | ||
else | ||
return result | ||
end | ||
end | ||
line | ||
end | ||
end | ||
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end |
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class FilterChain::Filters::All < FilterChain::Filter | ||
def initialize | ||
super(/(.*)/) | ||
end | ||
end |
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class FilterChain::Filters::None < FilterChain::Filter | ||
def initialize | ||
super(/(.*)/, false) | ||
end | ||
end |
Empty file.
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# Disable test/unit and rspec from running, in case loaded by broken tools. | ||
Test::Unit.run = false if defined?(Test::Unit) | ||
Spec::run = false if defined?(Spec) && Spec::respond_to?(:run=) | ||
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# Setup a nice testing environment | ||
$TESTING=true | ||
$:.push File.expand_path(File.join(File.dirname(__FILE__), '..', 'lib')) | ||
$:.uniq! | ||
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%w[rubygems facon amok].each { |r| require r } | ||
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# Bacon doesn't do any automagic, so lets tell it to! | ||
Bacon.summary_on_exit | ||
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require File.expand_path( | ||
File.join(File.dirname(__FILE__), %w[.. lib filter_chain])) |
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#!/usr/bin/env ruby | ||
__DIR__ = File.dirname(__FILE__) | ||
__APP__ = File.expand_path(__DIR__ + '/../') | ||
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puts | ||
Dir.chdir(__APP__) do | ||
files = ARGV.empty? ? Dir.glob('{test,spec}/**/{test,spec}_*.rb') : ARGV | ||
files.each { |f| require f } | ||
end |
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# $Id$ | ||
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begin | ||
require 'bones/smtp_tls' | ||
rescue LoadError | ||
require 'net/smtp' | ||
end | ||
require 'time' | ||
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namespace :ann do | ||
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# A prerequisites task that all other tasks depend upon | ||
task :prereqs | ||
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file PROJ.ann.file do | ||
ann = PROJ.ann | ||
puts "Generating #{ann.file}" | ||
File.open(ann.file,'w') do |fd| | ||
fd.puts("#{PROJ.name} version #{PROJ.version}") | ||
fd.puts(" by #{Array(PROJ.authors).first}") if PROJ.authors | ||
fd.puts(" #{PROJ.url}") if PROJ.url.valid? | ||
fd.puts(" (the \"#{PROJ.release_name}\" release)") if PROJ.release_name | ||
fd.puts | ||
fd.puts("== DESCRIPTION") | ||
fd.puts | ||
fd.puts(PROJ.description) | ||
fd.puts | ||
fd.puts(PROJ.changes.sub(%r/^.*$/, '== CHANGES')) | ||
fd.puts | ||
ann.paragraphs.each do |p| | ||
fd.puts "== #{p.upcase}" | ||
fd.puts | ||
fd.puts paragraphs_of(PROJ.readme_file, p).join("\n\n") | ||
fd.puts | ||
end | ||
fd.puts ann.text if ann.text | ||
end | ||
end | ||
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desc "Create an announcement file" | ||
task :announcement => ['ann:prereqs', PROJ.ann.file] | ||
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desc "Send an email announcement" | ||
task :email => ['ann:prereqs', PROJ.ann.file] do | ||
ann = PROJ.ann | ||
from = ann.email[:from] || PROJ.email | ||
to = Array(ann.email[:to]) | ||
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### build a mail header for RFC 822 | ||
rfc822msg = "From: #{from}\n" | ||
rfc822msg << "To: #{to.join(',')}\n" | ||
rfc822msg << "Subject: [ANN] #{PROJ.name} #{PROJ.version}" | ||
rfc822msg << " (#{PROJ.release_name})" if PROJ.release_name | ||
rfc822msg << "\n" | ||
rfc822msg << "Date: #{Time.new.rfc822}\n" | ||
rfc822msg << "Message-Id: " | ||
rfc822msg << "<#{"%.8f" % Time.now.to_f}@#{ann.email[:domain]}>\n\n" | ||
rfc822msg << File.read(ann.file) | ||
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params = [:server, :port, :domain, :acct, :passwd, :authtype].map do |key| | ||
ann.email[key] | ||
end | ||
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params[3] = PROJ.email if params[3].nil? | ||
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if params[4].nil? | ||
STDOUT.write "Please enter your e-mail password (#{params[3]}): " | ||
params[4] = STDIN.gets.chomp | ||
end | ||
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### send email | ||
Net::SMTP.start(*params) {|smtp| smtp.sendmail(rfc822msg, from, to)} | ||
end | ||
end # namespace :ann | ||
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desc 'Alias to ann:announcement' | ||
task :ann => 'ann:announcement' | ||
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CLOBBER << PROJ.ann.file | ||
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# EOF |
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