Ruby | StringScanner skip_until function

StringScanner#skip_until() : skip_until() is a StringScanner class method which returns the number of bytes advanced, or nil if no match was found.

Syntax: StringScanner.skip_until()

Parameter: StringScanner values
pattern

Return: the number of bytes advanced, or nil if no match was found.

Example #1 :

# Ruby code for StringScanner.skip_until() method

# loading StringScanner
require 'strscan'

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

# skip_until() method
c.skip_until(/12/)
puts "String Scanner skip_until form : #{c.pos()}\n\n"

# skip_until() method
c.skip_until(/./)
puts "String Scanner skip_until form : #{c.pos()}\n\n"

Output :

String Scanner skip_until form : 10

String Scanner skip_until form : 11

Example #2 :

# Ruby code for StringScanner.skip_until() method

# loading StringScanner
require 'strscan'

# declaring StringScanner
c = StringScanner.new("h ello geeks")

# skip_until() method
c.skip_until(/12/)
puts "String Scanner skip_until form : #{c.pos()}\n\n"

# skip_until() method
c.skip_until(/./)
puts "String Scanner skip_until form : #{c.pos()}\n\n"

Output :

String Scanner skip_until form : 0

String Scanner skip_until form : 1