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
Class Methods
2.7
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# File tmp/rubies/ruby-2.7.6/lib/csv/parser.rb, line 42
def initialize(*args)
super
@keeps = []
end
No documentation available
Instance Methods
2.7
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# File tmp/rubies/ruby-2.7.6/lib/csv/parser.rb, line 47
def each_line(row_separator)
position = pos
rest.each_line(row_separator) do |line|
position += line.bytesize
self.pos = position
yield(line)
end
end
No documentation available
2.7
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# File tmp/rubies/ruby-2.7.6/lib/csv/parser.rb, line 65
def keep_back
self.pos = @keeps.pop
end
No documentation available
2.7
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# File tmp/rubies/ruby-2.7.6/lib/csv/parser.rb, line 69
def keep_drop
@keeps.pop
end
No documentation available
#
2.7
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# File tmp/rubies/ruby-2.7.6/lib/csv/parser.rb, line 60
def keep_end
start = @keeps.pop
string.byteslice(start, pos - start)
end
No documentation available
2.7
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# File tmp/rubies/ruby-2.7.6/lib/csv/parser.rb, line 56
def keep_start
@keeps.push(pos)
end
No documentation available