[ruby/csv] Organize files in doc/ (#145)

bc9ea859b0

doc/csv/options/common/col_sep.rdoc

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+====== 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)

doc/csv/options/common/quote_char.rdoc

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+====== 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')

doc/csv/options/common/row_sep.rdoc

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+====== 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)