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-rw-r--r--guides/rails_guides/markdown.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/guides/rails_guides/markdown.rb b/guides/rails_guides/markdown.rb
index 1ea18ba9f5..b422a80759 100644
--- a/guides/rails_guides/markdown.rb
+++ b/guides/rails_guides/markdown.rb
@@ -47,7 +47,7 @@ module RailsGuides
end
def dom_id_text(text)
- text.downcase.gsub(/\?/, '-questionmark').gsub(/!/, '-bang').gsub(/\s+/, '-')
+ text.downcase.gsub(/\?/, '-questionmark').gsub(/!/, '-bang').gsub(/[^a-z0-9]+/, ' ').strip.gsub(/\s+/, '-')
end
def engine