News¶ ↑

3.3.2 - 2024-12-21¶ ↑

Fixes¶ ↑

• Fixed a parse bug with a quoted line with col_sep and an empty line. This was introduced in 3.3.1.

  • GH-324

  • Reported by stoodfarback

Thanks¶ ↑

• stoodfarback

3.3.1 - 2024-12-15¶ ↑

Improvements¶ ↑

• CSV.open: Changed to detect BOM by default. Note that this isn't enabled on Windows because Ruby may have a bug. See also: bugs.ruby-lang.org/issues/20526

  • GH-301

  • Reported by Junichi Ito

  • GH-301

  • Reported by Junichi Ito

• Improved performance.

  • GH-311

  • GH-312

  • Patch by Vladimir Kochnev

• CSV.open: Added support for StringIO as an input.

  • GH-300

  • GH-302

  • Patch by Marcelo

• Added a built-in time converter. You can use it by converters: :time.

  • GH-313

  • Patch by Bart de Water

• Added CSV::TSV for tab-separated values.

  • GH-272

  • GH-319

  • Reported by kojix2

  • Patch by Jas

Thanks¶ ↑

• Junichi Ito

• Vladimir Kochnev

• Marcelo

• Bart de Water

• kojix2

• Jas

3.3.0 - 2024-03-22¶ ↑

Fixes¶ ↑

• Fixed a regression parse bug in 3.2.9 that parsing with :skip_lines may cause wrong result.

3.2.9 - 2024-03-22¶ ↑

Fixes¶ ↑

• Fixed a parse bug that wrong result may be happen when:

  • :skip_lines is used

  • :row_separator is "\r\n"

  • There is a line that includes \n as a column value

  Reported by Ryo Tsukamoto.

  GH-296

Thanks¶ ↑

• Ryo Tsukamoto

3.2.8 - 2023-11-08¶ ↑

Improvements¶ ↑

• Added CSV::InvalidEncodingError.

  Patch by Kosuke Shibata.

  GH-287

Thanks¶ ↑

• Kosuke Shibata

3.2.7 - 2023-06-26¶ ↑

Improvements¶ ↑

• Removed an unused internal variable. GH-273 [Patch by Mau Magnaguagno]

• Changed to use https:// instead of http:// in documents. GH-274 [Patch by Vivek Bharath Akupatni]

• Added prefix to a helper module in test. GH-278 [Patch by Luke Gruber]

• Added a documentation for liberal_parsing: {backslash_quotes: true}. {GH-280}[https://github.com/ruby/csv/issues/280] [Patch by Mark Schneider]

Fixes¶ ↑

• Fixed a wrong execution result in documents. GH-276 [Patch by Yuki Tsujimoto]

• Fixed a bug that the same line is used multiple times. GH-279 [Reported by Gabriel Nagy]

Thanks¶ ↑

• Mau Magnaguagno

• Vivek Bharath Akupatni

• Yuki Tsujimoto

• Luke Gruber

• Mark Schneider

• Gabriel Nagy

3.2.6 - 2022-12-08¶ ↑

Improvements¶ ↑

• CSV#read consumes the same lines with other methods like CSV#shift. [GitHub#258] [Reported by Lhoussaine Ghallou]

• All Enumerable based methods consume the same lines with other methods. This may have a performance penalty. [GitHub#260] [Reported by Lhoussaine Ghallou]

• Simplify some implementations. [GitHub#262] [GitHub#263] [Patch by Mau Magnaguagno]

Fixes¶ ↑

• Fixed CSV.generate_lines document. [GitHub#257] [Patch by Sampat Badhe]

Thanks¶ ↑

• Sampat Badhe

• Lhoussaine Ghallou

• Mau Magnaguagno

3.2.5 - 2022-08-26¶ ↑

Improvements¶ ↑

• Added CSV.generate_lines. [GitHub#255] [Reported by OKURA Masafumi] [GitHub#256] [Patch by Eriko Sugiyama]

Thanks¶ ↑

• OKURA Masafumi

• Eriko Sugiyama

3.2.4 - 2022-08-22¶ ↑

Improvements¶ ↑

• Cleaned up internal implementations. [GitHub#249] [GitHub#250] [GitHub#251] [Patch by Mau Magnaguagno]

• Added support for RFC 3339 style time. [GitHub#248] [Patch by Thierry Lambert]

• Added support for transcoding String CSV. Syntax is from-encoding:to-encoding. [GitHub#254] [Reported by Richard Stueven]

• Added quoted information to CSV::FieldInfo. [GitHub#254] [Reported by Hirokazu SUZUKI]

Fixes¶ ↑

• Fixed a link in documents. [GitHub#244] [Patch by Peter Zhu]

Thanks¶ ↑

• Peter Zhu

• Mau Magnaguagno

• Thierry Lambert

• Richard Stueven

• Hirokazu SUZUKI

3.2.3 - 2022-04-09¶ ↑

Improvements¶ ↑

• Added contents summary to CSV::Table#inspect. [GitHub#229][Patch by Eriko Sugiyama] [GitHub#235][Patch by Sampat Badhe]

• Suppressed $INPUT_RECORD_SEPARATOR deprecation warning by Warning.warn. [GitHub#233][Reported by Jean byroot Boussier]

• Improved error message for liberal parsing with quoted values. [GitHub#231][Patch by Nikolay Rys]

• Fixed typos in documentation. [GitHub#236][Patch by Sampat Badhe]

• Added :max_field_size option and deprecated :field_size_limit option. [GitHub#238][Reported by Dan Buettner]

• Added :symbol_raw to built-in header converters. [GitHub#237][Reported by taki] [GitHub#239][Patch by Eriko Sugiyama]

Fixes¶ ↑

• Fixed a bug that some texts may be dropped unexpectedly. [Bug #18245][Reported by Hassan Abdul Rehman]

• Fixed a bug that :field_size_limit doesn't work with not complex row. [GitHub#238][Reported by Dan Buettner]

Thanks¶ ↑

• Hassan Abdul Rehman

• Eriko Sugiyama

• Jean byroot Boussier

• Nikolay Rys

• Sampat Badhe

• Dan Buettner

• taki

3.2.2 - 2021-12-24¶ ↑

Improvements¶ ↑

• Added a validation for invalid option combination. [GitHub#225][Patch by adamroyjones]

• Improved documentation for developers. [GitHub#227][Patch by Eriko Sugiyama]

Fixes¶ ↑

• Fixed a bug that all of ARGF contents may not be consumed. [GitHub#228][Reported by Rafael Navaza]

Thanks¶ ↑

• adamroyjones

• Eriko Sugiyama

• Rafael Navaza

3.2.1 - 2021-10-23¶ ↑

Improvements¶ ↑

• doc: Fixed wrong class name. [GitHub#217][Patch by Vince]

• Changed to always use "\n" for the default row separator on Ruby 3.0 or later because $INPUT_RECORD_SEPARATOR was deprecated since Ruby 3.0.

• Added support for Ractor. [GitHub#218][Patch by rm155]

  • Users who want to use the built-in converters in non-main Ractors need to call Ractor.make_shareable(CSV::Converters) and/or Ractor.make_shareable(CSV::HeaderConverters) before creating non-main Ractors.

Thanks¶ ↑

• Vince

• Joakim Antman

• rm155

3.2.0 - 2021-06-06¶ ↑

Improvements¶ ↑

• CSV.open: Added support for :newline option. [GitHub#198][Patch by Nobuyoshi Nakada]

• CSV::Table#each: Added support for column mode with duplicated headers. [GitHub#206][Reported by Yaroslav Berezovskiy]

• Object#CSV: Added support for Ruby 3.0.

• CSV::Row: Added support for pattern matching. [GitHub#207][Patch by Kevin Newton]

Fixes¶ ↑

• Fixed typos in documentation. [GitHub#196][Patch by Sampat Badhe]

Thanks¶ ↑

• Sampat Badhe

• Nobuyoshi Nakada

• Yaroslav Berezovskiy

• Kevin Newton

3.1.9 - 2020-11-23¶ ↑

Fixes¶ ↑

• Fixed a compatibility bug that the line to be processed by skip_lines: has a row separator. [GitHub#194][Reported by Josef Šimánek]

Thanks¶ ↑

• Josef Šimánek

3.1.8 - 2020-11-18¶ ↑

Improvements¶ ↑

• Improved documentation. [Patch by Burdette Lamar]

Thanks¶ ↑

• Burdette Lamar

3.1.7 - 2020-08-04¶ ↑

Improvements¶ ↑

• Improved document. [GitHub#158][GitHub#161] [Patch by Burdette Lamar]

• Updated required Ruby version to 2.5.0 or later. [GitHub#159] [Patch by Gabriel Nagy]

• Removed stringio 0.1.3 or later dependency.

Thanks¶ ↑

• Burdette Lamar

• Gabriel Nagy

3.1.6 - 2020-07-20¶ ↑

Improvements¶ ↑

• Improved document. [GitHub#127][GitHub#136][GitHub#139] [GitHub#141][GitHub#143][GitHub#146] [GitHub#148][GitHub#152][GitHub#155] [Patch by Burdette Lamar]

• CSV.open: Added support for undef: :replace. [GitHub#129][Patch by Koichi ITO]

• CSV.open: Added support for invalid: :replace. [GitHub#129][Patch by Koichi ITO]

• Don't run quotable check for invalid encoding field values. [GitHub#131][Patch by Koichi ITO]

• Added support for specifying the target indexes and names to force_quotes:. [GitHub#153][Reported by Aleksandr]

• CSV.generate: Changed to use the encoding of the first non-ASCII field rather than the encoding of ASCII only field.

• Changed to require the stringio gem 0.1.3 or later.

Thanks¶ ↑

• Burdette Lamar

• Koichi ITO

• Aleksandr

3.1.5 - 2020-05-18¶ ↑

Improvements¶ ↑

• Improved document. [GitHub#124][Patch by Burdette Lamar]

Fixes¶ ↑

• Added missing document files. [GitHub#125][Reported by joast]

Thanks¶ ↑

• Burdette Lamar

• joast

3.1.4 - 2020-05-17¶ ↑

Improvements¶ ↑

• Improved document. [GitHub#122][Patch by Burdette Lamar]

• Stopped to dropping stack trace for exception caused by CSV.parse_line. [GitHub#120][Reported by Kyle d'Oliveira]

Fixes¶ ↑

• Fixed a bug that :write_nil_value or :write_empty_value don't work with non String objects. [GitHub#123][Reported by asm256]

Thanks¶ ↑

• Burdette Lamar

• asm256

• Kyle d'Oliveira

3.1.3 - 2020-05-09¶ ↑

Improvements¶ ↑

• CSV::Row#dup: Copied deeply. [GitHub#108][Patch by Jim Kane]

Fixes¶ ↑

• Fixed a infinite loop bug for zero length match skip_lines. [GitHub#110][Patch by Mike MacDonald]

• CSV.generate: Fixed a bug that encoding isn't set correctly. [GitHub#110][Patch by Seiei Miyagi]

• Fixed document for the :strip option. [GitHub#114][Patch by TOMITA Masahiro]

• Fixed a parse bug when split charcter exists in middle of column value. [GitHub#115][Reported by TOMITA Masahiro]

Thanks¶ ↑

• Jim Kane

• Mike MacDonald

• Seiei Miyagi

• TOMITA Masahiro

3.1.2 - 2019-10-12¶ ↑

Improvements¶ ↑

• Added :col_sep check. [GitHub#94][Reported by Florent Beaurain]

• Suppressed warnings. [GitHub#96][Patch by Nobuyoshi Nakada]

• Improved documentation. [GitHub#101][Patch by Vitor Oliveira]

Fixes¶ ↑

• Fixed a typo in documentation. [GitHub#95][Patch by Yuji Yaginuma]

• Fixed a multibyte character handling bug. [GitHub#97][Patch by koshigoe]

• Fixed typos in documentation. [GitHub#100][Patch by Vitor Oliveira]

• Fixed a bug that seeked StringIO isn't accepted. [GitHub#98][Patch by MATSUMOTO Katsuyoshi]

• Fixed a bug that CSV.generate_line doesn't work with Encoding.default_internal. [GitHub#105][Reported by David Rodríguez]

Thanks¶ ↑

• Florent Beaurain

• Yuji Yaginuma

• Nobuyoshi Nakada

• koshigoe

• Vitor Oliveira

• MATSUMOTO Katsuyoshi

• David Rodríguez

3.1.1 - 2019-04-26¶ ↑

Improvements¶ ↑

• Added documentation for strip option. [GitHub#88][Patch by hayashiyoshino]

• Added documentation for write_converters, write_nil_value and write_empty_value options. [GitHub#87][Patch by Masafumi Koba]

• Added documentation for quote_empty option. [GitHub#89][Patch by kawa_tech]

Fixes¶ ↑

• Fixed a bug that strip; true removes a newline.

Thanks¶ ↑

• hayashiyoshino

• Masafumi Koba

• kawa_tech

3.1.0 - 2019-04-17¶ ↑

Fixes¶ ↑

• Fixed a backward incompatibility bug that CSV#eof? may raises an error. [GitHub#86][Reported by krororo]

Thanks¶ ↑

• krororo

3.0.9 - 2019-04-15¶ ↑

Fixes¶ ↑

• Fixed a test for Windows.

3.0.8 - 2019-04-11¶ ↑

Fixes¶ ↑

• Fixed a bug that strip: String doesn't work.

3.0.7 - 2019-04-08¶ ↑

Improvements¶ ↑

• Improve parse performance 1.5x by introducing loose parser.

Fixes¶ ↑

• Fix performance regression in 3.0.5.

• Fix a bug that CSV#line returns wrong value when you use quote_char: nil.

3.0.6 - 2019-03-30¶ ↑

Improvements¶ ↑

• CSV.foreach: Added support for mode.

3.0.5 - 2019-03-24¶ ↑

Improvements¶ ↑

• Added :liberal_parsing => {backslash_quote: true} option. [GitHub#74][Patch by 284km]

• Added :write_converters option. [GitHub#73][Patch by Danillo Souza]

• Added :write_nil_value option.

• Added :write_empty_value option.

• Improved invalid byte line number detection. [GitHub#78][Patch by Alyssa Ross]

• Added quote_char: nil optimization. [GitHub#79][Patch by 284km]

• Improved error message. [GitHub#81][Patch by Andrés Torres]

• Improved IO-like implementation for StringIO data. [GitHub#80][Patch by Genadi Samokovarov]

• Added :strip option. [GitHub#58]

Fixes¶ ↑

• Fixed a compatibility bug that CSV#each doesn't care CSV#shift. [GitHub#76][Patch by Alyssa Ross]

• Fixed a compatibility bug that CSV#eof? doesn't care CSV#each and CSV#shift. [GitHub#77][Reported by Chi Leung]

• Fixed a compatibility bug that invalid line isn't ignored. [GitHub#82][Reported by krororo]

• Fixed a bug that :skip_lines doesn't work with multibyte characters data. [GitHub#83][Reported by ff2248]

Thanks¶ ↑

• Alyssa Ross

• 284km

• Chi Leung

• Danillo Souza

• Andrés Torres

• Genadi Samokovarov

• krororo

• ff2248

3.0.4 - 2019-01-25¶ ↑

Improvements¶ ↑

• Removed duplicated CSV::Row#include? implementations. [GitHub#69][Patch by Max Schwenk]

• Removed duplicated CSV::Row#header? implementations. [GitHub#70][Patch by Max Schwenk]

Fixes¶ ↑

• Fixed a typo in document. [GitHub#72][Patch by Artur Beljajev]

• Fixed a compatibility bug when row headers are changed. [GitHub#71][Reported by tomoyuki kosaka]

Thanks¶ ↑

• Max Schwenk

• Artur Beljajev

• tomoyuki kosaka

3.0.3 - 2019-01-12¶ ↑

Improvements¶ ↑

• Migrated benchmark tool to benchmark-driver from benchmark-ips. [GitHub#57][Patch by 284km]

• Added liberal_parsing: {double_quote_outside_quote: true} parse option. [GitHub#66][Reported by Watson]

• Added quote_empty: write option. [GitHub#35][Reported by Dave Myron]

Fixes¶ ↑

• Fixed a compatibility bug that CSV.generate always return ASCII-8BIT encoding string. [GitHub#63][Patch by Watson]

• Fixed a compatibility bug that CSV.parse("", headers: true) doesn't return CSV::Table. [GitHub#64][Reported by Watson][Patch by 284km]

• Fixed a compatibility bug that multiple-characters column separator doesn't work. [GitHub#67][Reported by Jesse Reiss]

• Fixed a compatibility bug that double #each parse twice. [GitHub#68][Reported by Max Schwenk]

Thanks¶ ↑

• Watson

• 284km

• Jesse Reiss

• Dave Myron

• Max Schwenk

3.0.2 - 2018-12-23¶ ↑

Improvements¶ ↑

• Changed to use strscan in parser. [GitHub#52][Patch by 284km]

• Improves CSV write performance. 3.0.2 will be about 2 times faster than 3.0.1.

• Improves CSV parse performance for complex case. 3.0.2 will be about 2 times faster than 3.0.1.

Fixes¶ ↑

• Fixed a parse error bug for new line only input with headers option. [GitHub#53][Reported by Chris Beer]

• Fixed some typos in document. [GitHub#54][Patch by Victor Shepelev]

Thanks¶ ↑

• 284km

• Chris Beer

• Victor Shepelev

3.0.1 - 2018-12-07¶ ↑

Improvements¶ ↑

• Added a test. [GitHub#38][Patch by 284km]

• CSV::Row#dup: Changed to duplicate internal data. [GitHub#39][Reported by André Guimarães Sakata]

• Documented :nil_value and :empty_value options. [GitHub#41][Patch by OwlWorks]

• Added support for separator detection for non-seekable inputs. [GitHub#45][Patch by Ilmari Karonen]

• Removed needless code. [GitHub#48][Patch by Espartaco Palma]

• Added support for parsing header only CSV with headers: true. [GitHub#47][Patch by Kazuma Shibasaka]

• Added support for coverage report in CI. [GitHub#48][Patch by Espartaco Palma]

• Improved auto CR row separator detection. [GitHub#51][Reported by Yuki Kurihara]

Fixes¶ ↑

• Fixed a typo in document. [GitHub#40][Patch by Marcus Stollsteimer]

Thanks¶ ↑

• 284km

• André Guimarães Sakata

• Marcus Stollsteimer

• OwlWorks

• Ilmari Karonen

• Espartaco Palma

• Kazuma Shibasaka

• Yuki Kurihara

3.0.0 - 2018-06-06¶ ↑

Fixes¶ ↑

• Fixed a bug that header isn't returned for empty row. [GitHub#37][Patch by Grace Lee]

Thanks¶ ↑

• Grace Lee

1.0.2 - 2018-05-03¶ ↑

Improvements¶ ↑

• Split file for CSV::VERSION

• Code cleanup: Split csv.rb into a more manageable structure [GitHub#19][Patch by Espartaco Palma] [GitHub#20][Patch by Steven Daniels]

• Use CSV::MalformedCSVError for invalid encoding line [GitHub#26][Reported by deepj]

• Support implicit Row <-> Array conversion [Bug #10013][Reported by Dawid Janczak]

• Update class docs [GitHub#32][Patch by zverok]

• Add Row#each_pair [GitHub#33][Patch by zverok]

• Improve CSV performance [GitHub#30][Patch by Watson]

• Add :nil_value and :empty_value option

Fixes¶ ↑

• Fix a bug that "bom|utf-8" doesn't work [GitHub#23][Reported by Pavel Lobashov]

• CSV::Row#to_h, #to_hash: uses the same value as Row#[] [Bug #14482][Reported by tomoya ishida]

• Make row separator detection more robust [GitHub#25][Reported by deepj]

• Fix a bug that too much separator when col_sep is " " [Bug #8784][Reported by Sylvain Laperche]

Thanks¶ ↑

• Espartaco Palma

• Steven Daniels

• deepj

• Dawid Janczak

• zverok

• Watson

• Pavel Lobashov

• tomoya ishida

• Sylvain Laperche

• Ryunosuke Sato

1.0.1 - 2018-02-09¶ ↑

Improvements¶ ↑

• CSV::Table#delete: Added bulk delete support. You can delete multiple rows and columns at once. [GitHub#4][Patch by Vladislav]

• Updated Gem description. [GitHub#11][Patch by Marcus Stollsteimer]

• Code cleanup. [GitHub#12][Patch by Marcus Stollsteimer] [GitHub#14][Patch by Steven Daniels] [GitHub#18][Patch by takkanm]

• CSV::Table#dig: Added. [GitHub#15][Patch by Tomohiro Ogoke]

• CSV::Row#dig: Added. [GitHub#15][Patch by Tomohiro Ogoke]

• Added ISO 8601 support to date time converter. [GitHub#16]

Fixes¶ ↑

• Fixed wrong CSV::VERSION. [GitHub#10][Reported by Marcus Stollsteimer]

• CSV.generate: Fixed a regression bug that String argument is ignored. [GitHub#13][Patch by pavel]

Thanks¶ ↑

• Vladislav

• Marcus Stollsteimer

• Steven Daniels

• takkanm

• Tomohiro Ogoke

• pavel