Ruby | StringScanner peep function

StringScanner#peep() : peep() is a StringScanner class method which returns a string corresponding to string[pos, len].

Syntax: StringScanner.peep()

Parameter: StringScanner values
len – length of the string value

Return: a string corresponding to string[pos, len]

Example #1 :

# Ruby code for StringScanner.peep() method

# loading StringScanner
require 'strscan'

# declaring StringScanner
c = StringScanner.new("Mon Sep 12 2018 14:39")

# peep() method
puts "String Scanner peep form : #{c.peep(3)}\n\n"

# peep() method
puts "String Scanner peep form : #{c.peep(6)}\n\n"

# peep() method
puts "String Scanner peep form : #{c.peep(9)}\n\n"

Output :

String Scanner peep form : Mon

String Scanner peep form : Mon Se

String Scanner peep form : Mon Sep 1

Example #2 :

# Ruby code for StringScanner.peep() method

# loading StringScanner
require 'strscan'

# declaring StringScanner
c = StringScanner.new("hellogeeks")

# peep() method
puts "String Scanner peep form : #{c.peep(2)}\n\n"

# peep() method
puts "String Scanner peep form : #{c.peep(4)}\n\n"

# peep() method
puts "String Scanner peep form : #{c.peep(8)}\n\n"

Output :

String Scanner peep form : he

String Scanner peep form : hell

String Scanner peep form : hellogee