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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