Ruby | StringScanner scan_until function Last Updated : 12 Dec, 2019 Summarize Comments Improve Suggest changes Share Like Article Like Report StringScanner#scan_until() : scan_until() is a StringScanner class method which scans the string until the pattern is matched Syntax: StringScanner.scan_until() Parameter: StringScanner values Return: the substring up to and including the end of the match Example #1 : Ruby # Ruby code for StringScanner.scan_until() method # loading StringScanner require 'strscan' # declaring StringScanner c = StringScanner.new("Mon Sep 12 2018 14:39") # scan_until() method c.scan_until(/\w+/) puts "String Scanner result of c.scan_until() form : #{c.pos()}\n\n" # scan_until() method c.scan_until(/\s+/) puts "String Scanner result of c.scan_until() form : #{c.pos()}\n\n" Output : String Scanner result of c.scan_until() form : 3 String Scanner result of c.scan_until() form : 4 Example #2 : Ruby # Ruby code for StringScanner.scan_until() method # loading StringScanner require 'strscan' # declaring StringScanner c = StringScanner.new("h ello geeks") # scan_until() method c.scan_until(/\w+/) puts "String Scanner result of c.scan_until() form : #{c.pos()}\n\n" # scan_until() method c.scan_until(/\s+/) puts "String Scanner result of c.scan_until() form : #{c.pos()}\n\n" Output : String Scanner result of c.scan_until() form : 1 String Scanner result of c.scan_until() form : 2 Comment More infoAdvertise with us Next Article Ruby | StringScanner skip function M mayank5326 Follow Improve Article Tags : Ruby Ruby-Methods Ruby String Scanner-class Similar Reads 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 min read Ruby | StringScanner scan function 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 # Ruby code for StringScanner.scan() method # loading 1 min read Ruby | StringScanner check_until function StringScanner#check_until() : check_until() is a StringScanner class method which returns the value that scan_until would return, without advancing the scan pointer. Syntax: StringScanner.check_until() Parameter: StringScanner values Return: the value that scan_until would return, without advancing 1 min read Ruby | StringScanner scan_full function StringScanner#scan_full() : scan_full() is a StringScanner class method which checks whether the given pattern is matched from the current scan pointer Syntax: StringScanner.scan_full() Parameter: StringScanner values pattern advance_pointer return_pointer Return: true if the given pattern is matche 1 min read Ruby | StringScanner skip function StringScanner#skip() : skip() is a StringScanner class method which skip over the given pattern beginning with the scan pointer. Syntax: StringScanner.skip() Parameter: StringScanner values pattern Return: skip over the given pattern beginning with the scan pointer. Example #1 : Ruby # Ruby code for 1 min read Ruby | StringScanner unscan function StringScanner#unscan() : unscan() is a StringScanner class method which set the scan pointer to the previous position Syntax: StringScanner.unscan() Parameter: StringScanner values Return: set the scan pointer to the previous position Example #1 : Ruby # Ruby code for StringScanner.unscan() method # 1 min read Like