class
   CSV::Builder
 
  
  Overview
A CSV Builder writes CSV to an IO.
require "csv"
result = CSV.build do |csv|
  # A row can be written by specifying several values
  csv.row "Hello", 1, 'a', "String with \"quotes\"", '"', :sym
  # Or an enumerable
  csv.row [1, 2, 3]
  # Or using a block, and appending to the row
  csv.row do |row|
    # Appending a single value
    row << 4
    # Or multiple values
    row.concat 5, 6
    # Or an enumerable
    row.concat [7, 8]
  end
end
puts resultOutput:
Hello,1,a,"String with ""quotes""","""",sym
1,2,3
4,5,6,7,8Defined in:
csv/builder.crConstructors
- 
        .new(io : IO, separator : Char = DEFAULT_SEPARATOR, quote_char : Char = DEFAULT_QUOTE_CHAR, quoting : Quoting = Quoting::RFC)
        
          Creates a builder that will write to the given IO.
Instance Method Summary
- 
        #row(&)
        
          Yields a CSV::Builder::Rowto append a row.
- 
        #row(values : Enumerable) : Nil
        
          Appends the given values as a single row, and then a newline. 
- 
        #row(*values) : Nil
        
          Appends the given values as a single row, and then a newline. 
Instance methods inherited from class Reference
  
  
    
      ==(other : self)==(other : JSON::Any)
==(other : YAML::Any)
==(other) ==, dup dup, hash(hasher) hash, initialize initialize, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference) : Bool
same?(other : Nil) same?, to_s(io : IO) : Nil to_s
Constructor methods inherited from class Reference
  
  
    
      new
    new, 
    
  
    
      unsafe_construct(address : Pointer, *args, **opts) : self
    unsafe_construct
    
  
      
  Class methods inherited from class Reference
  
  
    
      pre_initialize(address : Pointer)
    pre_initialize
    
  
      
    
      
  Instance methods inherited from class Object
  
  
    
      ! : Bool
    !, 
    
  
    
      !=(other)
    !=, 
    
  
    
      !~(other)
    !~, 
    
  
    
      ==(other)
    ==, 
    
  
    
      ===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, as(type : Class) as, as?(type : Class) as?, class class, dup dup, hash(hasher)
hash hash, in?(collection : Object) : Bool
in?(*values : Object) : Bool in?, inspect(io : IO) : Nil
inspect : String inspect, is_a?(type : Class) : Bool is_a?, itself itself, nil? : Bool nil?, not_nil!(message)
not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, responds_to?(name : Symbol) : Bool responds_to?, tap(&) tap, to_json(io : IO) : Nil
to_json : String to_json, to_pretty_json(indent : String = " ") : String
to_pretty_json(io : IO, indent : String = " ") : Nil to_pretty_json, to_s(io : IO) : Nil
to_s : String to_s, to_yaml(io : IO) : Nil
to_yaml : String to_yaml, try(&) try, unsafe_as(type : T.class) forall T unsafe_as
Class methods inherited from class Object
  
  
    
      from_json(string_or_io, root : String)from_json(string_or_io) from_json, from_yaml(string_or_io : String | IO) from_yaml
Macros inherited from class Object
  
  
    
      class_getter(*names, &block)
    class_getter, 
    
  
    
      class_getter!(*names)
    class_getter!, 
    
  
    
      class_getter?(*names, &block)
    class_getter?, 
    
  
    
      class_property(*names, &block)
    class_property, 
    
  
    
      class_property!(*names)
    class_property!, 
    
  
    
      class_property?(*names, &block)
    class_property?, 
    
  
    
      class_setter(*names)
    class_setter, 
    
  
    
      def_clone
    def_clone, 
    
  
    
      def_equals(*fields)
    def_equals, 
    
  
    
      def_equals_and_hash(*fields)
    def_equals_and_hash, 
    
  
    
      def_hash(*fields)
    def_hash, 
    
  
    
      delegate(*methods, to object)
    delegate, 
    
  
    
      forward_missing_to(delegate)
    forward_missing_to, 
    
  
    
      getter(*names, &block)
    getter, 
    
  
    
      getter!(*names)
    getter!, 
    
  
    
      getter?(*names, &block)
    getter?, 
    
  
    
      property(*names, &block)
    property, 
    
  
    
      property!(*names)
    property!, 
    
  
    
      property?(*names, &block)
    property?, 
    
  
    
      setter(*names)
    setter
    
  
    
  Constructor Detail
        
        def self.new(io : IO, separator : Char = DEFAULT_SEPARATOR, quote_char : Char = DEFAULT_QUOTE_CHAR, quoting : Quoting = Quoting::RFC)
        #
      
      
        Creates a builder that will write to the given IO.
Instance Method Detail
        
        def row(&)
        #
      
      
        Yields a CSV::Builder::Row to append a row. A newline is appended
to IO after the block exits.