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/opt/alt/ruby18/share/ri/1.8/system/String/sub%21-i.yaml
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--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Performs the substitutions of <tt>String#sub</tt> in place, returning <em>str</em>, or <tt>nil</tt> if no substitutions were performed. full_name: String#sub! is_singleton: false name: sub! params: | str.sub!(pattern, replacement) => str or nil str.sub!(pattern) {|match| block } => str or nil visibility: public
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