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ascendbruce/regex_gsub.rb

Created July 15, 2014 06:03
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gsub regex replace part
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regex_gsub.rb
content = "這是標題之前<h1>這是標題</h1>這是標題之後"
content.gsub(/\<h1(.*)\<\/h1\>/, '<h2\1</h2>')
=> "這是標題之前<h2>這是標題</h2>這是標題之後"
# 重點在於 match 時的 () 包起來的東西變成 \1 （但必須用單引號 '' 才有效）
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