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* lib/csv.rb: Fixing a bug that prevented CSV from parsing

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all multi-line fields correctly.  Patch by Rob Biedenham.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28431 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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jeg2 2010-06-25 02:59:20 +00:00
parent 89a3e2ed7a
commit effa0c76d9
3 changed files with 29 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Fri Jun 25 11:45:36 2010 James Edward Gray II <jeg2@ruby-lang.org>
* lib/csv.rb: Fixing a bug that prevented CSV from parsing
all multi-line fields correctly. Patch by Rob Biedenham.
Fri Jun 25 10:07:14 2010 Nobuyoshi Nakada <nobu@ruby-lang.org>
* test/ruby/envutil.rb (Test::Unit::Assertions#assert_in_out_err):

10
lib/csv.rb
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@ -198,7 +198,7 @@ require "stringio"
#
class CSV
# The version of the installed library.
VERSION = "2.4.6".freeze
VERSION = "2.4.7".freeze
#
# A CSV::Row is part Array and part Hash. It retains an order for the fields
@ -1843,7 +1843,13 @@ class CSV
end
parts = parse.split(@col_sep, -1)
csv << nil if parts.empty?
if parts.empty?
if in_extended_col
csv[-1] << @col_sep # will be replaced with a @row_sep after the parts.each loop
else
csv << nil
end
end
# This loop is the hot path of csv parsing. Some things may be non-dry
# for a reason. Make sure to benchmark when refactoring.

16
test/csv/test_csv_parsing.rb
View file

@ -115,6 +115,22 @@ class TestCSVParsing < Test::Unit::TestCase
assert_equal(Array.new, CSV.parse_line("\n1,2,3\n"))
end
def test_rob_edge_cases
[ [%Q{"a\nb"}, ["a\nb"]],
[%Q{"\n\n\n"}, ["\n\n\n"]],
[%Q{a,"b\n\nc"}, ['a', "b\n\nc"]],
[%Q{,"\r\n"}, [nil,"\r\n"]],
[%Q{,"\r\n."}, [nil,"\r\n."]],
[%Q{"a\na","one newline"}, ["a\na", 'one newline']],
[%Q{"a\n\na","two newlines"}, ["a\n\na", 'two newlines']],
[%Q{"a\r\na","one CRLF"}, ["a\r\na", 'one CRLF']],
[%Q{"a\r\n\r\na","two CRLFs"}, ["a\r\n\r\na", 'two CRLFs']],
[%Q{with blank,"start\n\nfinish"\n}, ['with blank', "start\n\nfinish"]],
].each do |edge_case|
assert_equal(edge_case.last, CSV.parse_line(edge_case.first))
end
end
def test_non_regex_edge_cases
# An early version of the non-regex parser fails this test
[ [ "foo,\"foo,bar,baz,foo\",\"foo\"",