allolex · August 29, 2015 14:00 · May 3, 2014 · May 2, 2014 · May 2, 2014 · May 2, 2014
diff --git a/00_regular_expression_examples.md b/00_regular_expression_examples.md
@@ -1,5 +0,0 @@
-# Regular expression examples
-
-So that Rubyists' regex-fu can be improved,
-as someone who has used regular expressions for a long time,
-I would like to provide examples of regexes in Ruby.

diff --git a/README.md b/README.md
@@ -0,0 +1,4 @@
+I have moved the regular expression example repository to the regular GitHub
+site to encourage contributions.
+
+https://github.com/allolex/ruby-regular-expressions
diff --git a/regular_expression_comments.rb b/regular_expression_comments.rb
@@ -1,61 +0,0 @@
-#!/usr/bin/env ruby
-# Commenting regular expressions
-# Use the x flag after your regular expression
-
-re = /
- \A # the beginning of a string,
- < # followed by a '<'
- [^>]+ # followed by one or more non-'>' characters
- > # followed by a '>'
- /x
-
-# Second method for compiling the regex
-# I'm using a heredoc here with `<<`
-re_two_string = <<-'END_OF_REGEX'
- \A # beginning of a string
- \s+ # one or more spaces
- < # a '<' character
- END_OF_REGEX
-
-# Regexp::EXTENDED is the same as the `x` flag
-re_two = Regexp.new(re_two_string, Regexp::EXTENDED)
-
-
-test_text = <<'END_OF_STRING'
-<this-one-matches-the-first-re>
- <this-one-matches-the-second-re>
-<match>
-<> <!-- no match -->
-END_OF_STRING
-
-test_text.split(/\n/).each do |line|
- message = if re === line
- 'SUCH MATCH on the first RE !'
- elsif re_two === line
- 'SUCH MATCH on the second RE !'
- else
- 'MATCH FAIL :('
- end
- puts "#{message} --> '#{line}'"
-end
-
-puts '',re.inspect
-puts '',re_two.inspect
-
-__END__
-SUCH MATCH on the first RE ! --> '<this-one-matches-the-first-re>'
-SUCH MATCH on the second RE ! --> ' <this-one-matches-the-second-re>'
-SUCH MATCH on the first RE ! --> '<match>'
-MATCH FAIL :( --> '<> <!-- no match -->'
-
-/
- \A # the beginning of a string,
- < # followed by a '<'
- [^>]+ # followed by one or more non-'>' characters
- > # followed by a '>'
- /x
-
-/ \A # beginning of a string
- \s+ # one or more spaces
- < # a '<' character
-/x

diff --git a/regular_expression_escape.rb b/regular_expression_escape.rb
@@ -1,24 +0,0 @@
-#!/usr/bin/env ruby
-# Escaping text in regular expressions
-# Regexp.escape is the same as Regexp.quote
-
-# The example uses a BBCode tag, which was one of the
-# simplest things I could come up with.
-
-bbcode_bold_re_one = /\[b\]/
-escaped_text = Regexp.escape('[b]')
-bbcode_bold_re_two = Regexp.new(escaped_text)
-
-if bbcode_bold_re_one == bbcode_bold_re_two
- puts 'They are the same, but one is more readable.'
-else
- puts 'They are different.'
-end
-
-puts bbcode_bold_re_one.inspect
-puts bbcode_bold_re_two.inspect
-
-__END__
-They are the same, but one is more readable.
-/\[b\]/
-/\[b\]/

diff --git a/regular_expression_lookaround.rb b/regular_expression_lookaround.rb
@@ -1,7 +0,0 @@
-#!/usr/bin/env ruby
-# Using look-ahead and look-behind assertions in
-# regular expressions
-
-# This is a stub
-
-__END__

diff --git a/regular_expression_union.rb b/regular_expression_union.rb
@@ -1,47 +0,0 @@
-#!/usr/bin/env ruby
-# Combining regular expressions with Regexp.union
-# Avdi Grimm has covered this in his Ruby Tapas screencast (paid)
-# http://www.rubytapas.com/episodes/199-Regexp-Union
-
-head_re = /(?<head><[\/]?head>)/i
-body_re = /(?<body><[\/]?body>)/
-paragraph_re = /(?<paragraph><[\/]?p>)/
-
-test_text = <<EOP
-<head>
- <title>This</title>
- <meta></meta>
-</head>
-<body>
- <div>Unprinted text.<div>
- <p>Some text.</p>
-</body>
-EOP
-
-re = Regexp.union(
- head_re,
- body_re,
- paragraph_re
- )
-
-test_text.each_line do |line|
- line.chomp
- # The === operator returns true if the string on the
- # right matches the regular expression on the left
- puts "#{line}" if re === line
-end
-
-puts '','The regular expression',re.inspect
-puts '','As you can see, it preserves any regex flags you include.'
-
-__END__
-<head>
-</head>
-<body>
- <p>Some text.</p>
-</body>
-
-The regular expression
-/(?i-mx:(?<head><[\/]?head>))|(?-mix:(?<body><[\/]?body>))|(?-mix:(?<paragraph><[\/]?p>))/
-
-As you can see, it preserves any regex flags you include.

diff --git a/regular_expression_lookaround.rb b/regular_expression_lookaround.rb
@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+# Using look-ahead and look-behind assertions in
+# regular expressions
+
+# This is a stub
+
+__END__
diff --git a/regular_expression_comments.rb b/regular_expression_comments.rb
@@ -1,5 +1,6 @@
 #!/usr/bin/env ruby
 # Commenting regular expressions
+# Use the x flag after your regular expression
 
 re = /
  \A # the beginning of a string,
@@ -8,18 +9,53 @@
  > # followed by a '>'
  /x
 
-test_text = <<EOS
-<this-one-matches>
- <this-one-does-not-match>
+# Second method for compiling the regex
+# I'm using a heredoc here with `<<`
+re_two_string = <<-'END_OF_REGEX'
+ \A # beginning of a string
+ \s+ # one or more spaces
+ < # a '<' character
+ END_OF_REGEX
+
+# Regexp::EXTENDED is the same as the `x` flag
+re_two = Regexp.new(re_two_string, Regexp::EXTENDED)
+
+
+test_text = <<'END_OF_STRING'
+<this-one-matches-the-first-re>
+ <this-one-matches-the-second-re>
 <match>
 <> <!-- no match -->
-EOS
+END_OF_STRING
 
 test_text.split(/\n/).each do |line|
- message = if !! line.match(re)
- 'SUCH MATCH!'
- else
- 'MATCH FAIL :('
- end
- puts "#{message} '#{line}'"
+ message = if re === line
+ 'SUCH MATCH on the first RE !'
+ elsif re_two === line
+ 'SUCH MATCH on the second RE !'
+ else
+ 'MATCH FAIL :('
+ end
+ puts "#{message} --> '#{line}'"
 end
+
+puts '',re.inspect
+puts '',re_two.inspect
+
+__END__
+SUCH MATCH on the first RE ! --> '<this-one-matches-the-first-re>'
+SUCH MATCH on the second RE ! --> ' <this-one-matches-the-second-re>'
+SUCH MATCH on the first RE ! --> '<match>'
+MATCH FAIL :( --> '<> <!-- no match -->'
+
+/
+ \A # the beginning of a string,
+ < # followed by a '<'
+ [^>]+ # followed by one or more non-'>' characters
+ > # followed by a '>'
+ /x
+
+/ \A # beginning of a string
+ \s+ # one or more spaces
+ < # a '<' character
+/x
diff --git a/regular_expression_escape.rb b/regular_expression_escape.rb
@@ -17,3 +17,8 @@
 
 puts bbcode_bold_re_one.inspect
 puts bbcode_bold_re_two.inspect
+
+__END__
+They are the same, but one is more readable.
+/\[b\]/
+/\[b\]/
diff --git a/regular_expression_union.rb b/regular_expression_union.rb
@@ -31,5 +31,17 @@
  puts "#{line}" if re === line
 end
 
-puts '','The regualar expression',re.inspect
+puts '','The regular expression',re.inspect
 puts '','As you can see, it preserves any regex flags you include.'
+
+__END__
+<head>
+</head>
+<body>
+ <p>Some text.</p>
+</body>
+
+The regular expression
+/(?i-mx:(?<head><[\/]?head>))|(?-mix:(?<body><[\/]?body>))|(?-mix:(?<paragraph><[\/]?p>))/
+
+As you can see, it preserves any regex flags you include.
diff --git a/regular_expression_examples.md → 00_regular_expression_examples.md b/regular_expression_examples.md → 00_regular_expression_examples.md
diff --git a/README.md → regular_expression_examples.md b/README.md → regular_expression_examples.md
diff --git a/README.md b/README.md
@@ -0,0 +1,5 @@
+# Regular expression examples
+
+So that Rubyists' regex-fu can be improved,
+as someone who has used regular expressions for a long time,
+I would like to provide examples of regexes in Ruby.
diff --git a/regular_expression_union.rb b/regular_expression_union.rb
@@ -0,0 +1,35 @@
+#!/usr/bin/env ruby
+# Combining regular expressions with Regexp.union
+# Avdi Grimm has covered this in his Ruby Tapas screencast (paid)
+# http://www.rubytapas.com/episodes/199-Regexp-Union
+
+head_re = /(?<head><[\/]?head>)/i
+body_re = /(?<body><[\/]?body>)/
+paragraph_re = /(?<paragraph><[\/]?p>)/
+
+test_text = <<EOP
+<head>
+ <title>This</title>
+ <meta></meta>
+</head>
+<body>
+ <div>Unprinted text.<div>
+ <p>Some text.</p>
+</body>
+EOP
+
+re = Regexp.union(
+ head_re,
+ body_re,
+ paragraph_re
+ )
+
+test_text.each_line do |line|
+ line.chomp
+ # The === operator returns true if the string on the
+ # right matches the regular expression on the left
+ puts "#{line}" if re === line
+end
+
+puts '','The regualar expression',re.inspect
+puts '','As you can see, it preserves any regex flags you include.'
diff --git a/regular_expression_escape.rb b/regular_expression_escape.rb
@@ -0,0 +1,19 @@
+#!/usr/bin/env ruby
+# Escaping text in regular expressions
+# Regexp.escape is the same as Regexp.quote
+
+# The example uses a BBCode tag, which was one of the
+# simplest things I could come up with.
+
+bbcode_bold_re_one = /\[b\]/
+escaped_text = Regexp.escape('[b]')
+bbcode_bold_re_two = Regexp.new(escaped_text)
+
+if bbcode_bold_re_one == bbcode_bold_re_two
+ puts 'They are the same, but one is more readable.'
+else
+ puts 'They are different.'
+end
+
+puts bbcode_bold_re_one.inspect
+puts bbcode_bold_re_two.inspect
diff --git a/regular_expression_comments.rb b/regular_expression_comments.rb
diff --git a/regular_expression_comments.rb b/regular_expression_comments.rb
@@ -4,7 +4,7 @@
 re = /
  \A # the beginning of a string,
  < # followed by a '<'
- ([^>]+) # followed by one or more non-'>' characters,
+ [^>]+  # followed by one or more non-'>' characters
  > # followed by a '>'
  /x
 

diff --git a/regular_expression_comments.rb b/regular_expression_comments.rb
@@ -0,0 +1,25 @@
+#!/usr/bin/env ruby
+# Commenting regular expressions
+
+re = /
+ \A # the beginning of a string,
+ < # followed by a '<'
+ ([^>]+) # followed by one or more non-'>' characters,
+ > # followed by a '>'
+ /x
+
+test_text = <<EOS
+<this-one-matches>
+ <this-one-does-not-match>
+<match>
+<> <!-- no match -->
+EOS
+
+test_text.split(/\n/).each do |line|
+ message = if !! line.match(re)
+ 'SUCH MATCH!'
+ else
+ 'MATCH FAIL :('
+ end
+ puts "#{message} '#{line}'"
+end