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-rw-r--r--guides/rails_guides/kindle.rb2
-rw-r--r--guides/rails_guides/levenshtein.rb50
-rw-r--r--guides/rails_guides/markdown.rb7
-rw-r--r--guides/rails_guides/markdown/renderer.rb7
4 files changed, 40 insertions, 26 deletions
diff --git a/guides/rails_guides/kindle.rb b/guides/rails_guides/kindle.rb
index 09eecd5634..32926622e3 100644
--- a/guides/rails_guides/kindle.rb
+++ b/guides/rails_guides/kindle.rb
@@ -70,7 +70,7 @@ module Kindle
File.open("sections/%03d/_section.txt" % section_idx, 'w') {|f| f.puts title}
doc.xpath("//h3[@id]").each_with_index do |h3,item_idx|
subsection = h3.inner_text
- content = h3.xpath("./following-sibling::*").take_while {|x| x.name != "h3"}.map {|x| x.to_html}
+ content = h3.xpath("./following-sibling::*").take_while {|x| x.name != "h3"}.map(&:to_html)
item = Nokogiri::HTML(h3.to_html + content.join("\n"))
item_path = "sections/%03d/%03d.html" % [section_idx, item_idx]
add_head_section(item, subsection)
diff --git a/guides/rails_guides/levenshtein.rb b/guides/rails_guides/levenshtein.rb
index 489aa3ea7a..8a908a4339 100644
--- a/guides/rails_guides/levenshtein.rb
+++ b/guides/rails_guides/levenshtein.rb
@@ -1,31 +1,39 @@
module RailsGuides
module Levenshtein
- # Based on the pseudocode in http://en.wikipedia.org/wiki/Levenshtein_distance
- def self.distance(s1, s2)
- s = s1.unpack('U*')
- t = s2.unpack('U*')
- m = s.length
- n = t.length
+ # This code is based directly on the Text gem implementation
+ # Returns a value representing the "cost" of transforming str1 into str2
+ def self.distance str1, str2
+ s = str1
+ t = str2
+ n = s.length
+ m = t.length
+ max = n/2
- # matrix initialization
- d = []
- 0.upto(m) { |i| d << [i] }
- 0.upto(n) { |j| d[0][j] = j }
+ return m if (0 == n)
+ return n if (0 == m)
+ return n if (n - m).abs > max
- # distance computation
- 1.upto(m) do |i|
- 1.upto(n) do |j|
- cost = s[i] == t[j] ? 0 : 1
- d[i][j] = [
- d[i-1][j] + 1, # deletion
- d[i][j-1] + 1, # insertion
- d[i-1][j-1] + cost, # substitution
- ].min
+ d = (0..m).to_a
+ x = nil
+
+ str1.each_char.each_with_index do |char1,i|
+ e = i+1
+
+ str2.each_char.each_with_index do |char2,j|
+ cost = (char1 == char2) ? 0 : 1
+ x = [
+ d[j+1] + 1, # insertion
+ e + 1, # deletion
+ d[j] + cost # substitution
+ ].min
+ d[j] = e
+ e = x
end
+
+ d[m] = x
end
- # all done
- return d[m][n]
+ return x
end
end
end
diff --git a/guides/rails_guides/markdown.rb b/guides/rails_guides/markdown.rb
index 1ea18ba9f5..17035069d0 100644
--- a/guides/rails_guides/markdown.rb
+++ b/guides/rails_guides/markdown.rb
@@ -47,7 +47,12 @@ module RailsGuides
end
def dom_id_text(text)
- text.downcase.gsub(/\?/, '-questionmark').gsub(/!/, '-bang').gsub(/\s+/, '-')
+ escaped_chars = Regexp.escape('\\/`*_{}[]()#+-.!:,;|&<>^~=\'"')
+
+ text.downcase.gsub(/\?/, '-questionmark')
+ .gsub(/!/, '-bang')
+ .gsub(/[#{escaped_chars}]+/, ' ').strip
+ .gsub(/\s+/, '-')
end
def engine
diff --git a/guides/rails_guides/markdown/renderer.rb b/guides/rails_guides/markdown/renderer.rb
index 2eb7ca17a3..554d94ad50 100644
--- a/guides/rails_guides/markdown/renderer.rb
+++ b/guides/rails_guides/markdown/renderer.rb
@@ -23,8 +23,9 @@ HTML
end
def paragraph(text)
- if text =~ /^(TIP|IMPORTANT|CAUTION|WARNING|NOTE|INFO|TODO)[.:](.*?)/
+ if text =~ /^(TIP|IMPORTANT|CAUTION|WARNING|NOTE|INFO|TODO)[.:]/
convert_notes(text)
+ elsif text.include?('DO NOT READ THIS FILE ON GITHUB')
elsif text =~ /^\[<sup>(\d+)\]:<\/sup> (.+)$/
linkback = %(<a href="#footnote-#{$1}-ref"><sup>#{$1}</sup></a>)
%(<p class="footnote" id="footnote-#{$1}">#{linkback} #{$2}</p>)
@@ -47,10 +48,10 @@ HTML
case code_type
when 'ruby', 'sql', 'plain'
code_type
- when 'erb'
+ when 'erb', 'html+erb'
'ruby; html-script: true'
when 'html'
- 'xml' # html is understood, but there are .xml rules in the CSS
+ 'xml' # HTML is understood, but there are .xml rules in the CSS
else
'plain'
end