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--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: "This returns the value that #scan would return, without advancing the scan pointer. The match register is affected, though."
- !ruby/struct:SM::Flow::VERB 
  body: "  s = StringScanner.new("Fri Dec 12 1975 14:39")\n  s.check /Fri/               # -> "Fri"\n  s.pos                       # -> 0\n  s.matched                   # -> "Fri"\n  s.check /12/                # -> nil\n  s.matched                   # -> nil\n"
- !ruby/struct:SM::Flow::P 
  body: "Mnemonic: it "checks" to see whether a #scan will return a value."
full_name: StringScanner#check
is_singleton: false
name: check
params: " check(pattern)\n"
visibility: public