21 files changed, 0 insertions, 640 deletions
diff --git a/doc/csv/col_sep.rdoc b/doc/csv/col_sep.rdoc
deleted file mode 100644
index bb4d3ce389..0000000000
--- a/doc/csv/col_sep.rdoc
+++ /dev/null
@@ -1,45 +0,0 @@
-====== Option +col_sep+
-
-Specifies the \String field separator to be used
-for both parsing and generating.
-The \String will be transcoded into the data's \Encoding before use.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:col_sep) # => "," (comma)
-
-For examples in this section:
-  ary = ['a', 'b', 'c']
-
-Using the default:
-  str = CSV.generate_line(line)
-  str # => "a,b,c\n"
-  ary = CSV.parse_line(str)
-  ary # => ["a", "b", "c"]
-
-Using +:+ (colon):
-  col_sep = ':'
-  str = CSV.generate_line(ary, col_sep: col_sep)
-  str # => "a:b:c\n"
-  ary = CSV.parse_line(str, col_sep: col_sep)
-  ary # => [["a", "b", "c"]]
-
-Using +::+ (two colons):
-  col_sep = '::'
-  str = CSV.generate_line(ary, col_sep: col_sep)
-  str # => "a::b::c\n"
-  ary = CSV.parse_line(str, col_sep: col_sep)
-  ary # => [["a", "b", "c"]]
-
----
-
-Raises an exception if given the empty \String:
-  col_sep = ''
-  # Raises ArgumentError (:col_sep must be 1 or more characters: "")
-  CSV.parse_line("a:b:c\n", col_sep: col_sep)
-
-Raises an exception if the given value is not String-convertible:
-  col_sep = BasicObject.new
-  # Raises NoMethodError (undefined method `to_s' for #<BasicObject:>)
-  CSV.generate_line(line, col_sep: col_sep)
-  # Raises NoMethodError (undefined method `to_s' for #<BasicObject:>)
-  CSV.parse(str, col_sep: col_sep)
diff --git a/doc/csv/converters.rdoc b/doc/csv/converters.rdoc
deleted file mode 100644
index 993803c5d0..0000000000
--- a/doc/csv/converters.rdoc
+++ /dev/null
@@ -1,45 +0,0 @@
-====== Option +converters+
-
-Specifies a single field converter name or \Proc,
-or an \Array of field converter names and Procs.
-
-See {Field Converters}[#class-CSV-label-Field+Converters]
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:converters) # => nil
-
-The value may be a single field converter name:
-  str = '1,2,3'
-  # Without a converter
-  ary = CSV.parse_line(str)
-  ary # => ["1", "2", "3"]
-  # With built-in converter :integer
-  ary = CSV.parse_line(str, converters: :integer)
-  ary # => [1, 2, 3]
-
-The value may be an \Array of field converter names:
-  str = '1,3.14159'
-  # Without converters
-  ary = CSV.parse_line(str)
-  ary # => ["1", "3.14159"]
-  # With built-in converters
-  ary = CSV.parse_line(str, converters: [:integer, :float])
-  ary # => [1, 3.14159]
-
-The value may be a \Proc custom converter:
-  str = ' foo  ,  bar  ,  baz  '
-  # Without a converter
-  ary = CSV.parse_line(str)
-  ary # => [" foo  ", "  bar  ", "  baz  "]
-  # With a custom converter
-  ary = CSV.parse_line(str, converters: proc {|field| field.strip })
-  ary # => ["foo", "bar", "baz"]
-
-See also {Custom Converters}[#class-CSV-label-Custom+Converters]
-
----
-
-Raises an exception if the converter is not a converter name or a \Proc:
-  str = 'foo,0'
-  # Raises NoMethodError (undefined method `arity' for nil:NilClass)
-  CSV.parse(str, converters: :foo)
diff --git a/doc/csv/empty_value.rdoc b/doc/csv/empty_value.rdoc
deleted file mode 100644
index 7d3bcc078c..0000000000
--- a/doc/csv/empty_value.rdoc
+++ /dev/null
@@ -1,13 +0,0 @@
-====== Option +empty_value+
-
-Specifies the object that is to be substituted
-for each field that has an empty \String.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:empty_value) # => "" (empty string)
-
-With the default, <tt>""</tt>:
-  CSV.parse_line('a,"",b,"",c') # => ["a", "", "b", "", "c"]
-
-With a different object:
-  CSV.parse_line('a,"",b,"",c', empty_value: 'x') # => ["a", "x", "b", "x", "c"]
diff --git a/doc/csv/field_size_limit.rdoc b/doc/csv/field_size_limit.rdoc
deleted file mode 100644
index 797c5776fc..0000000000
--- a/doc/csv/field_size_limit.rdoc
+++ /dev/null
@@ -1,39 +0,0 @@
-====== Option +field_size_limit+
-
-Specifies the \Integer field size limit.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:field_size_limit) # => nil
-
-This is a maximum size CSV will read ahead looking for the closing quote for a field.
-(In truth, it reads to the first line ending beyond this size.)
-If a quote cannot be found within the limit CSV will raise a MalformedCSVError,
-assuming the data is faulty.
-You can use this limit to prevent what are effectively DoS attacks on the parser.
-However, this limit can cause a legitimate parse to fail;
-therefore the default value is +nil+ (no limit).
-
-For the examples in this section:
-  str = <<~EOT
-    "a","b"
-    "
-    2345
-    ",""
-  EOT
-  str # => "\"a\",\"b\"\n\"\n2345\n\",\"\"\n"
-
-Using the default +nil+:
-  ary = CSV.parse(str)
-  ary # => [["a", "b"], ["\n2345\n", ""]]
-
-Using <tt>50</tt>:
-  field_size_limit = 50
-  ary = CSV.parse(str, field_size_limit: field_size_limit)
-  ary # => [["a", "b"], ["\n2345\n", ""]]
-
----
-
-Raises an exception if a field is too long:
-  big_str = "123456789\n" * 1024
-  # Raises CSV::MalformedCSVError (Field size exceeded in line 1.)
-  CSV.parse('valid,fields,"' + big_str + '"', field_size_limit: 2048)
diff --git a/doc/csv/force_quotes.rdoc b/doc/csv/force_quotes.rdoc
deleted file mode 100644
index 11afd1a16c..0000000000
--- a/doc/csv/force_quotes.rdoc
+++ /dev/null
@@ -1,17 +0,0 @@
-====== Option +force_quotes+
-
-Specifies the boolean that determines whether each output field is to be double-quoted.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:force_quotes) # => false
-
-For examples in this section:
-  ary = ['foo', 0, nil]
-
-Using the default, +false+:
-  str = CSV.generate_line(ary)
-  str # => "foo,0,\n"
-
-Using +true+:
-  str = CSV.generate_line(ary, force_quotes: true)
-  str # => "\"foo\",\"0\",\"\"\n"
diff --git a/doc/csv/header_converters.rdoc b/doc/csv/header_converters.rdoc
deleted file mode 100644
index 329d96a897..0000000000
--- a/doc/csv/header_converters.rdoc
+++ /dev/null
@@ -1,31 +0,0 @@
-====== Option +header_converters+
-
-Specifies a \String converter name or an \Array of converter names.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:header_converters) # => nil
-
-Identical in functionality to option {converters}[#class-CSV-label-Option+converters]
-except that:
-- The converters apply only to the header row.
-- The built-in header converters are +:downcase+ and +:symbol+.
-
-Examples:
-  str = <<-EOT
-  foo,0
-  bar,1
-  baz,2
-  EOT
-  headers = ['Name', 'Value']
-  # With no header converter
-  csv = CSV.parse(str, headers: headers)
-  csv.headers # => ["Name", "Value"]
-  # With header converter :downcase
-  csv = CSV.parse(str, headers: headers, header_converters: :downcase)
-  csv.headers # => ["name", "value"]
-  # With header converter :symbol
-  csv = CSV.parse(str, headers: headers, header_converters: :symbol)
-  csv.headers # => [:name, :value]
-  # With both
-  csv = CSV.parse(str, headers: headers, header_converters: [:downcase, :symbol])
-  csv.headers # => [:name, :value]
diff --git a/doc/csv/headers.rdoc b/doc/csv/headers.rdoc
deleted file mode 100644
index 0ea151f24b..0000000000
--- a/doc/csv/headers.rdoc
+++ /dev/null
@@ -1,63 +0,0 @@
-====== Option +headers+
-
-Specifies a boolean, \Symbol, \Array, or \String to be used
-to define column headers.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:headers) # => false
-
----
-
-Without +headers+:
-  str = <<-EOT
-  Name,Count
-  foo,0
-  bar,1
-  bax,2
-  EOT
-  csv = CSV.new(str)
-  csv # => #<CSV io_type:StringIO encoding:UTF-8 lineno:0 col_sep:"," row_sep:"\n" quote_char:"\"">
-  csv.headers # => nil
-  csv.shift # => ["Name", "Count"]
-
----
-
-If set to +true+ or the \Symbol +:first_row+,
-the first row of the data is treated as a row of headers:
-  str = <<-EOT
-  Name,Count
-  foo,0
-  bar,1
-  bax,2
-  EOT
-  csv = CSV.new(str, headers: true)
-  csv # => #<CSV io_type:StringIO encoding:UTF-8 lineno:2 col_sep:"," row_sep:"\n" quote_char:"\"" headers:["Name", "Count"]>
-  csv.headers # => ["Name", "Count"]
-  csv.shift # => #<CSV::Row "Name":"bar" "Count":"1">
-
----
-
-If set to an \Array, the \Array elements are treated as headers:
-  str = <<-EOT
-  foo,0
-  bar,1
-  bax,2
-  EOT
-  csv = CSV.new(str, headers: ['Name', 'Count'])
-  csv
-  csv.headers # => ["Name", "Count"]
-  csv.shift # => #<CSV::Row "Name":"bar" "Count":"1">
-
----
-
-If set to a \String +str+, method <tt>CSV::parse_line(str, options)</tt> is called
-with the current +options+, and the returned \Array is treated as headers:
-  str = <<-EOT
-  foo,0
-  bar,1
-  bax,2
-  EOT
-  csv = CSV.new(str, headers: 'Name,Count')
-  csv
-  csv.headers # => ["Name", "Count"]
-  csv.shift # => #<CSV::Row "Name":"bar" "Count":"1">
diff --git a/doc/csv/liberal_parsing.rdoc b/doc/csv/liberal_parsing.rdoc
deleted file mode 100644
index b8b9b00c98..0000000000
--- a/doc/csv/liberal_parsing.rdoc
+++ /dev/null
@@ -1,19 +0,0 @@
-====== Option +liberal_parsing+
-
-Specifies the boolean value that determines whether
-CSV will attempt to parse input not conformant with RFC 4180,
-such as double quotes in unquoted fields.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:liberal_parsing) # => false
-
-For examples in this section:
-  str = 'is,this "three, or four",fields'
-
-Without +liberal_parsing+:
-  # Raises CSV::MalformedCSVError (Illegal quoting in str 1.)
-  CSV.parse_line(str)
-
-With +liberal_parsing+:
-  ary = CSV.parse_line(str, liberal_parsing: true)
-  ary # => ["is", "this \"three", " or four\"", "fields"]
diff --git a/doc/csv/nil_value.rdoc b/doc/csv/nil_value.rdoc
deleted file mode 100644
index 412e8795e8..0000000000
--- a/doc/csv/nil_value.rdoc
+++ /dev/null
@@ -1,12 +0,0 @@
-====== Option +nil_value+
-
-Specifies the object that is to be substituted for each null (no-text) field.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:nil_value) # => nil
-
-With the default, +nil+:
-  CSV.parse_line('a,,b,,c') # => ["a", nil, "b", nil, "c"]
-
-With a different object:
-  CSV.parse_line('a,,b,,c', nil_value: 0) # => ["a", 0, "b", 0, "c"]
diff --git a/doc/csv/quote_char.rdoc b/doc/csv/quote_char.rdoc
deleted file mode 100644
index eb2ad9c0c8..0000000000
--- a/doc/csv/quote_char.rdoc
+++ /dev/null
@@ -1,32 +0,0 @@
-====== Option +quote_char+
-
-Specifies the character (\String of length 1) used used to quote fields
-in both parsing and generating.
-This String will be transcoded into the data's \Encoding before use.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:quote_char) # => "\"" (backslash)
-
-This is useful for an application that incorrectly uses <tt>'</tt> (single-quote)
-to quote fields, instead of the correct <tt>"</tt> (double-quote).
-
-Using the default:
-  ary = ['a', 'b', '"c"', 'd']
-  str = CSV.generate_line(ary)
-  str # => "a,b,\"\"\"c\"\"\",d\n"
-  ary = CSV.parse_line(str)
-  ary # => ["a", "b", "\"c\"", "d"]
-
-Using <tt>'</tt> (single-quote):
-  quote_char = "'"
-  ary = ['a', 'b', '\'c\'', 'd']
-  str = CSV.generate_line(ary, quote_char: quote_char)
-  str # => "a,b,'''c''',d\n"
-  ary = CSV.parse_line(str, quote_char: quote_char)
-  ary # => [["a", "b", "'c'", "d"]]
-
----
-
-Raises an exception if the \String length is greater than 1:
-  # Raises ArgumentError (:quote_char has to be nil or a single character String)
-  CSV.new('', quote_char: 'xx')
diff --git a/doc/csv/quote_empty.rdoc b/doc/csv/quote_empty.rdoc
deleted file mode 100644
index 4c5645c662..0000000000
--- a/doc/csv/quote_empty.rdoc
+++ /dev/null
@@ -1,12 +0,0 @@
-====== Option +quote_empty+
-
-Specifies the boolean that determines whether an empty value is to be double-quoted.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:quote_empty) # => true
-
-With the default +true+:
-  CSV.generate_line(['"', ""]) # => "\"\"\"\",\"\"\n"
-
-With +false+:
-    CSV.generate_line(['"', ""], quote_empty: false) # => "\"\"\"\",\n"
diff --git a/doc/csv/return_headers.rdoc b/doc/csv/return_headers.rdoc
deleted file mode 100644
index 45d2e3f3de..0000000000
--- a/doc/csv/return_headers.rdoc
+++ /dev/null
@@ -1,22 +0,0 @@
-====== Option +return_headers+
-
-Specifies the boolean that determines whether method #shift
-returns or ignores the header row.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:return_headers) # => false
-
-Examples:
-  str = <<-EOT
-  Name,Count
-  foo,0
-  bar,1
-  bax,2
-  EOT
-  # Without return_headers first row is str.
-  csv = CSV.new(str, headers: true)
-  csv.shift # => #<CSV::Row "Name":"foo" "Count":"0">
-  # With return_headers first row is headers.
-  csv = CSV.new(str, headers: true, return_headers: true)
-  csv.shift # => #<CSV::Row "Name":"Name" "Count":"Count">
-
diff --git a/doc/csv/row_sep.rdoc b/doc/csv/row_sep.rdoc
deleted file mode 100644
index a9e2c5b2fb..0000000000
--- a/doc/csv/row_sep.rdoc
+++ /dev/null
@@ -1,91 +0,0 @@
-====== Option +row_sep+
-
-Specifies the row separator, a \String or the \Symbol <tt>:auto</tt> (see below),
-to be used for both parsing and generating.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:row_sep) # => :auto
-
----
-
-When +row_sep+ is a \String, that \String becomes the row separator.
-The String will be transcoded into the data's Encoding before use.
-
-Using <tt>"\n"</tt>:
-  str = CSV.generate do |csv|
-    csv << [:foo, 0]
-    csv << [:bar, 1]
-    csv << [:baz, 2]
-  end
-  str # => "foo,0\nbar,1\nbaz,2\n"
-  ary = CSV.parse(str)
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"]]
-
-Using <tt>|</tt> (pipe):
-  row_sep = '|'
-  str = CSV.generate(row_sep: row_sep) do |csv|
-    csv << [:foo, 0]
-    csv << [:bar, 1]
-    csv << [:baz, 2]
-  end
-  str # => "foo,0|bar,1|baz,2|"
-  ary = CSV.parse(str, row_sep: row_sep)
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"]]
-
-Using <tt>--</tt> (two hyphens):
-  row_sep = '--'
-  str = CSV.generate(row_sep: row_sep) do |csv|
-    csv << [:foo, 0]
-    csv << [:bar, 1]
-    csv << [:baz, 2]
-  end
-  str # => "foo,0--bar,1--baz,2--"
-  ary = CSV.parse(str, row_sep: row_sep)
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"]]
-
-Using <tt>''</tt> (empty string):
-  row_sep = ''
-  str = CSV.generate(row_sep: row_sep) do |csv|
-    csv << [:foo, 0]
-    csv << [:bar, 1]
-    csv << [:baz, 2]
-  end
-  str # => "foo,0bar,1baz,2"
-  ary = CSV.parse(str, row_sep: row_sep)
-  ary # => [["foo", "0bar", "1baz", "2"]]
-
----
-
-When +row_sep+ is the \Symbol +:auto+ (the default),
-invokes auto-discovery of the row separator.
-
-Auto-discovery reads ahead in the data looking for the next <tt>\r\n</tt>, +\n+, or +\r+ sequence.
-The sequence will be selected even if it occurs in a quoted field,
-assuming that you would have the same line endings there.
-
-  row_sep = :auto
-  str = CSV.generate(row_sep: row_sep) do |csv|
-    csv << [:foo, 0]
-    csv << [:bar, 1]
-    csv << [:baz, 2]
-  end
-  str # => "foo,0\nbar,1\nbaz,2\n"
-  ary = CSV.parse(str, row_sep: row_sep)
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"]]
-
-The default <tt>$INPUT_RECORD_SEPARATOR</tt> (<tt>$/</tt>) is used
-if any of the following is true:
-* None of those sequences is found.
-* Data is +ARGF+, +STDIN+, +STDOUT+, or +STDERR+.
-* The stream is only available for output.
-
-Obviously, discovery takes a little time. Set manually if speed is important. Also note that IO objects should be opened in binary mode on Windows if this feature will be used as the line-ending translation can cause problems with resetting the document position to where it was before the read ahead.
-
----
-
-Raises an exception if the given value is not String-convertible:
-  row_sep = BasicObject.new
-  # Raises NoMethodError (undefined method `to_s' for #<BasicObject:>)
-  CSV.generate_line(ary, row_sep: row_sep)
-  # Raises NoMethodError (undefined method `to_s' for #<BasicObject:>)
-  CSV.parse(str, row_sep: row_sep)
diff --git a/doc/csv/skip_blanks.rdoc b/doc/csv/skip_blanks.rdoc
deleted file mode 100644
index 2c8f7b7bb8..0000000000
--- a/doc/csv/skip_blanks.rdoc
+++ /dev/null
@@ -1,31 +0,0 @@
-====== Option +skip_blanks+
-
-Specifies a boolean that determines whether blank lines in the input will be ignored;
-a line that contains a column separator is not considered to be blank.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:skip_blanks) # => false
-
-See also option {skiplines}[#class-CSV-label-Option+skip_lines].
-
-For examples in this section:
-  str = <<-EOT
-  foo,0
-
-  bar,1
-  baz,2
-
-  ,
-  EOT
-
-Using the default, +false+:
-  ary = CSV.parse(str)
-  ary # => [["foo", "0"], [], ["bar", "1"], ["baz", "2"], [], [nil, nil]]
-
-Using +true+:
-  ary = CSV.parse(str, skip_blanks: true)
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"], [nil, nil]]
-
-Using a truthy value:
-  ary = CSV.parse(str, skip_blanks: :foo)
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"], [nil, nil]]
diff --git a/doc/csv/skip_lines.rdoc b/doc/csv/skip_lines.rdoc
deleted file mode 100644
index 1481c40a5f..0000000000
--- a/doc/csv/skip_lines.rdoc
+++ /dev/null
@@ -1,37 +0,0 @@
-====== Option +skip_lines+
-
-Specifies an object to use in identifying comment lines in the input that are to be ignored:
-* If a \Regexp, ignores lines that match it.
-* If a \String, converts it to a \Regexp, ignores lines that match it.
-* If +nil+, no lines are considered to be comments.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:skip_lines) # => nil
-
-For examples in this section:
-  str = <<-EOT
-  # Comment
-  foo,0
-  bar,1
-  baz,2
-  # Another comment
-  EOT
-  str # => "# Comment\nfoo,0\nbar,1\nbaz,2\n# Another comment\n"
-
-Using the default, +nil+:
-  ary = CSV.parse(str)
-  ary # => [["# Comment"], ["foo", "0"], ["bar", "1"], ["baz", "2"], ["# Another comment"]]
-
-Using a \Regexp:
-  ary = CSV.parse(str, skip_lines: /^#/)
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"]]
-
-Using a \String:
-  ary = CSV.parse(str, skip_lines: '#')
-  ary # => [["foo", "0"], ["bar", "1"], ["baz", "2"]]
-
----
-
-Raises an exception if given an object that is not a \Regexp, a \String, or +nil+:
-  # Raises ArgumentError (:skip_lines has to respond to #match: 0)
-  CSV.parse(str, skip_lines: 0)
diff --git a/doc/csv/strip.rdoc b/doc/csv/strip.rdoc
deleted file mode 100644
index 56ae4310c3..0000000000
--- a/doc/csv/strip.rdoc
+++ /dev/null
@@ -1,15 +0,0 @@
-====== Option +strip+
-
-Specifies the boolean value that determines whether
-whitespace is stripped from each input field.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:strip) # => false
-
-With default value +false+:
-  ary = CSV.parse_line(' a , b ')
-  ary # => [" a ", " b "]
-
-With value +true+:
-  ary = CSV.parse_line(' a , b ', strip: true)
-  ary # => ["a", "b"]
diff --git a/doc/csv/unconverted_fields.rdoc b/doc/csv/unconverted_fields.rdoc
deleted file mode 100644
index 3e7f839d49..0000000000
--- a/doc/csv/unconverted_fields.rdoc
+++ /dev/null
@@ -1,27 +0,0 @@
-====== Option +unconverted_fields+
-
-Specifies the boolean that determines whether unconverted field values are to be available.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:unconverted_fields) # => nil
-
-The unconverted field values are those found in the source data,
-prior to any conversions performed via option +converters+.
-
-When option +unconverted_fields+ is +true+,
-each returned row (\Array or \CSV::Row) has an added method,
-+unconverted_fields+, that returns the unconverted field values:
-  str = <<-EOT
-  foo,0
-  bar,1
-  baz,2
-  EOT
-  # Without unconverted_fields
-  csv = CSV.parse(str, converters: :integer)
-  csv # => [["foo", 0], ["bar", 1], ["baz", 2]]
-  csv.first.respond_to?(:unconverted_fields) # => false
-  # With unconverted_fields
-  csv = CSV.parse(str, converters: :integer, unconverted_fields: true)
-  csv # => [["foo", 0], ["bar", 1], ["baz", 2]]
-  csv.first.respond_to?(:unconverted_fields) # => true
-  csv.first.unconverted_fields # => ["foo", "0"]
diff --git a/doc/csv/write_converters.rdoc b/doc/csv/write_converters.rdoc
deleted file mode 100644
index c7367b96fd..0000000000
--- a/doc/csv/write_converters.rdoc
+++ /dev/null
@@ -1,31 +0,0 @@
-====== Option +write_converters+
-
-Specifies the \Proc or \Array of Procs that are to be called
-for converting each output field.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:write_converters) # => nil
-
-With no write converter:
-  str = CSV.generate_line(["\na\n", "\tb\t", " c "])
-  str # => "\"\na\n\",\tb\t, c \n"
-
-With a write converter:
-  strip_converter = lambda {|field| field.strip }
-  str = CSV.generate_line(["\na\n", "\tb\t", " c "], write_converters: strip_converter)
-  str # => "a,b,c\n"
-
-With two write converters (called in order):
-  upcase_converter = lambda {|field| field.upcase }
-  downcase_converter = lambda {|field| field.downcase }
-  write_converters = [upcase_converter, downcase_converter]
-  str = CSV.generate_line(['a', 'b', 'c'], write_converters: write_converters)
-  str # => "a,b,c\n"
-
----
-
-Raises an exception if the converter returns a value that is neither +nil+
-nor \String-convertible:
-  bad_converter = lambda {|field| BasicObject.new }
-  # Raises NoMethodError (undefined method `is_a?' for #<BasicObject:>)
-  CSV.generate_line(['a', 'b', 'c'], write_converters: bad_converter)
-\ No newline at end of file
diff --git a/doc/csv/write_empty_value.rdoc b/doc/csv/write_empty_value.rdoc
deleted file mode 100644
index 67be5662cb..0000000000
--- a/doc/csv/write_empty_value.rdoc
+++ /dev/null
@@ -1,15 +0,0 @@
-====== Option +write_empty_value+
-
-Specifies the object that is to be substituted for each field
-that has an empty \String.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:write_empty_value) # => ""
-
-Without the option:
-  str = CSV.generate_line(['a', '', 'c', ''])
-  str # => "a,\"\",c,\"\"\n"
-
-With the option:
-  str = CSV.generate_line(['a', '', 'c', ''], write_empty_value: "x")
-  str # => "a,x,c,x\n"
diff --git a/doc/csv/write_headers.rdoc b/doc/csv/write_headers.rdoc
deleted file mode 100644
index f9faa9d438..0000000000
--- a/doc/csv/write_headers.rdoc
+++ /dev/null
@@ -1,29 +0,0 @@
-====== Option +write_headers+
-
-Specifies the boolean that determines whether a header row is included in the output;
-ignored if there are no headers.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:write_headers) # => nil
-
-Without +write_headers+:
-  file_path = 't.csv'
-  CSV.open(file_path,'w',
-      :headers => ['Name','Value']
-    ) do |csv|
-      csv << ['foo', '0']
-  end
-  CSV.open(file_path) do |csv|
-    csv.shift
-  end # => ["foo", "0"]
-
-With +write_headers+":
-  CSV.open(file_path,'w',
-      :write_headers=> true,
-      :headers => ['Name','Value']
-    ) do |csv|
-      csv << ['foo', '0']
-  end
-  CSV.open(file_path) do |csv|
-    csv.shift
-  end # => ["Name", "Value"]
diff --git a/doc/csv/write_nil_value.rdoc b/doc/csv/write_nil_value.rdoc
deleted file mode 100644
index 8560f644b3..0000000000
--- a/doc/csv/write_nil_value.rdoc
+++ /dev/null
@@ -1,14 +0,0 @@
-====== Option +write_nil_value+
-
-Specifies the object that is to be substituted for each +nil+ field.
-
-Default value:
-  CSV::DEFAULT_OPTIONS.fetch(:write_nil_value) # => nil
-
-Without the option:
-  str = CSV.generate_line(['a', nil, 'c', nil])
-  str # => "a,,c,\n"
-
-With the option:
-  str = CSV.generate_line(['a', nil, 'c', nil], write_nil_value: "x")
-  str # => "a,x,c,x\n"