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✏️ 正在编辑: unscan-i.yaml
路径:
/opt/alt/ruby18/share/ri/1.8/system/StringScanner/unscan-i.yaml
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--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Set the scan pointer to the previous position. Only one previous position is remembered, and it changes with each scanning operation. - !ruby/struct:SM::Flow::VERB body: " s = StringScanner.new('test string')\n s.scan(/\\w+/) # => "test"\n s.unscan\n s.scan(/../) # => "te"\n s.scan(/\\d/) # => nil\n s.unscan # ScanError: unscan failed: previous match had failed\n" full_name: StringScanner#unscan is_singleton: false name: unscan params: () visibility: public
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