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Ruby | StringScanner scan function
  • Last Updated : 12 Dec, 2019

StringScanner#scan() : scan() is a StringScanner class method which tries to match with pattern at the current position.

Syntax: StringScanner.scan()

Parameter: StringScanner values

Return: matched string otherwise return false

Example #1 :






# Ruby code for StringScanner.scan() method
  
# loading StringScanner
require 'strscan'
  
# declaring StringScanner 
c = StringScanner.new("Mon Sep 12 2018 14:39")
   
# scan() method
c.scan(/\w+/)
  
puts "String Scanner result of c.scan() form : #{c.pos()}\n\n"
  
# scan() method
c.scan(/\s+/)
  
puts "String Scanner result of c.scan() form : #{c.pos()}\n\n"

Output :

String Scanner result of c.scan() form : 3

String Scanner result of c.scan() form : 4

Example #2 :




# Ruby code for StringScanner.scan() method
  
# loading StringScanner
require 'strscan'
  
# declaring StringScanner 
c = StringScanner.new("h ello geeks")
   
# scan() method
c.scan(/\w+/)
  
puts "String Scanner result of c.scan() form : #{c.pos()}\n\n"
  
# scan() method
c.scan(/\s+/)
  
puts "String Scanner result of c.scan() form : #{c.pos()}\n\n"

Output :

String Scanner result of c.scan() form : 1

String Scanner result of c.scan() form : 2
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