CSV::Parser::Scanner

CSV::Scanner receives a CSV output, scans it and return the content. It also controls the life cycle of the object with its methods keep_start, keep_end, keep_back, keep_drop.

Uses StringScanner (the official strscan gem). Strscan provides lexical scanning operations on a String. We inherit its object and take advantage on the methods. For more information, please visit: ruby-doc.org/stdlib-2.6.1/libdoc/strscan/rdoc/StringScanner.html