path: root/gnu/packages/language.scm

;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2015, 2016 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2017, 2018 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2018 ng0 <ng0@n0.is>
;;; Copyright © 2019 Alex Vong <alexvong1995@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (gnu packages language)
  #:use-module (gnu packages)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages ocr)
  #:use-module (gnu packages perl)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages python)
  #:use-module (gnu packages perl-check)
  #:use-module (gnu packages swig)
  #:use-module (gnu packages web)
  #:use-module (gnu packages xorg)
  #:use-module (guix packages)
  #:use-module (guix build-system perl)
  #:use-module (guix build-system python)
  #:use-module ((guix licenses)
                #:select (bsd-3 gpl2 gpl2+ gpl3 gpl3+ perl-license zpl2.1))
  #:use-module (guix download)
  #:use-module (guix utils))

(define-public perl-lingua-en-findnumber
  (package
    (name "perl-lingua-en-findnumber")
    (version "1.32")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/N/NE/NEILB/"
                           "Lingua-EN-FindNumber-" version ".tar.gz"))
       (sha256
        (base32
         "015ximzdp42v824llwlg2pd77vd0d172lb4xs55q9f9zhqf6s5qx"))))
    (build-system perl-build-system)
    (propagated-inputs
     `(("perl-lingua-en-words2nums" ,perl-lingua-en-words2nums)))
    (home-page "https://metacpan.org/release/Lingua-EN-FindNumber")
    (synopsis "Locate (written) numbers in English text ")
    (description "This module provides a regular expression for finding
numbers in English text.  It also provides functions for extracting and
manipulating such numbers.")
    (license perl-license)))

(define-public perl-lingua-en-inflect
  (package
    (name "perl-lingua-en-inflect")
    (version "1.903")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/D/DC/DCONWAY/"
                           "Lingua-EN-Inflect-" version ".tar.gz"))
       (sha256
        (base32
         "0j8d1f1wvmgc11d71pc8xp8fv5a1nb2yfw1dgd19xhscn1klpvzw"))))
    (build-system perl-build-system)
    (native-inputs `(("perl-module-build" ,perl-module-build)))
    (home-page "https://metacpan.org/release/Lingua-EN-Inflect")
    (synopsis "Convert singular to plural")
    (description "Lingua::EN::Inflect provides plural inflections,
\"a\"/\"an\" selection for English words, and manipulation of numbers as
words.  Plural forms of all nouns, most verbs, and some adjectives are
provided.  Where appropriate, \"classical\" variants (for example: \"brother\"
-> \"brethren\", \"dogma\" -> \"dogmata\", etc.) are also provided.")
    (license perl-license)))

(define-public perl-lingua-en-inflect-number
  (package
    (name "perl-lingua-en-inflect-number")
    (version "1.12")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/N/NE/NEILB/"
                           "Lingua-EN-Inflect-Number-" version ".tar.gz"))
       (sha256
        (base32
         "1gxccynkaqav43ww43jp4rzkyr36x97jd03yb5f6yx0jhn1k7yv6"))))
    (build-system perl-build-system)
    (propagated-inputs
     `(("perl-lingua-en-inflect" ,perl-lingua-en-inflect)))
    (home-page "https://metacpan.org/release/Lingua-EN-Inflect-Number")
    (synopsis "Force number of words to singular or plural")
    (description "This module extends the functionality of Lingua::EN::Inflect
with three new functions for determining plurality of a word and forcefully
converting a word to singular or plural.")
    (license perl-license)))

(define-public perl-lingua-en-inflect-phrase
  (package
    (name "perl-lingua-en-inflect-phrase")
    (version "0.20")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/R/RK/RKITOVER/"
                           "Lingua-EN-Inflect-Phrase-" version ".tar.gz"))
       (sha256
        (base32
         "1a6y1l2pjim2242wcpgz066di4pbzfgsjjdl7vg5a5wzm48qj1am"))))
    (build-system perl-build-system)
    (native-inputs
     `(("perl-test-nowarnings" ,perl-test-nowarnings)))
    (propagated-inputs
     `(("perl-lingua-en-findnumber" ,perl-lingua-en-findnumber)
       ("perl-lingua-en-inflect" ,perl-lingua-en-inflect)
       ("perl-lingua-en-inflect-number" ,perl-lingua-en-inflect-number)
       ("perl-lingua-en-number-isordinal" ,perl-lingua-en-number-isordinal)
       ("perl-lingua-en-tagger" ,perl-lingua-en-tagger)))
    (home-page "https://metacpan.org/release/Lingua-EN-Inflect-Phrase")
    (synopsis "Inflect short English phrases")
    (description "This module attempts to pluralize or singularize short
English phrases.")
    (license perl-license)))

(define-public perl-lingua-en-number-isordinal
  (package
    (name "perl-lingua-en-number-isordinal")
    (version "0.05")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/R/RK/RKITOVER/"
                           "Lingua-EN-Number-IsOrdinal-" version ".tar.gz"))
       (sha256
        (base32
         "1mhqjvh2ad30gjab5b3a6mbr4aysyrscp4wp42yy5x6001a6km98"))))
    (build-system perl-build-system)
    (native-inputs
     `(("perl-try-tiny" ,perl-try-tiny)
       ("perl-test-fatal" ,perl-test-fatal)))
    (propagated-inputs
     `(("perl-lingua-en-findnumber" ,perl-lingua-en-findnumber)))
    (home-page "https://metacpan.org/release/Lingua-EN-Number-IsOrdinal")
    (synopsis "Detect if English number is ordinal or cardinal")
    (description "This module will tell you if a number, either in words or as
digits, is a cardinal or ordinal number.")
    (license perl-license)))

(define-public perl-lingua-en-tagger
  (package
    (name "perl-lingua-en-tagger")
    (version "0.30")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/A/AC/ACOBURN/"
                           "Lingua-EN-Tagger-" version ".tar.gz"))
       (sha256
        (base32
         "0nrnkvsf9f0a7lp82sanmy89ms2nqq1lvjqicvsagsvzp513bl5b"))))
    (build-system perl-build-system)
    (propagated-inputs
     `(("perl-memoize-expirelru" ,perl-memoize-expirelru)
       ("perl-lingua-stem" ,perl-lingua-stem)
       ("perl-html-parser" ,perl-html-parser)
       ("perl-html-tagset" ,perl-html-tagset)))
    (home-page "https://metacpan.org/release/Lingua-EN-Tagger")
    (synopsis "Part-of-speech tagger for English natural language processing")
    (description "This module is a probability based, corpus-trained tagger
that assigns part-of-speech tags to English text based on a lookup dictionary
and a set of probability values.  The tagger assigns appropriate tags based on
conditional probabilities - it examines the preceding tag to determine the
appropriate tag for the current word.  Unknown words are classified according
to word morphology or can be set to be treated as nouns or other parts of
speech.  The tagger also extracts as many nouns and noun phrases as it can,
using a set of regular expressions.")
    (license gpl3)))

(define-public perl-lingua-en-words2nums
  (package
    (name "perl-lingua-en-words2nums")
    (version "0.18")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/J/JO/JOEY/"
                           "Lingua-EN-Words2Nums-" version ".tar.gz"))
       (sha256
        (base32
         "118xx8qr1zbx30psv7ic55w65h15mc1vz6zicshfm96jgiwmcrb8"))))
    (build-system perl-build-system)
    (home-page "https://metacpan.org/release/Lingua-EN-Words2Nums")
    (synopsis "Convert English text to numbers")
    (description "This module converts English text into numbers.  It supports
both ordinal and cardinal numbers, negative numbers, and very large numbers.")
    (license perl-license)))

(define-public perl-lingua-pt-stemmer
  (package
    (name "perl-lingua-pt-stemmer")
    (version "0.02")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/N/NE/NEILB/"
                           "Lingua-PT-Stemmer-" version ".tar.gz"))
       (sha256
        (base32
         "17c48sfbgwd2ivlgf59sr6jdhwa3aim8750f8pyzz7xpi8gz0var"))))
    (build-system perl-build-system)
    (home-page "https://metacpan.org/release/Lingua-PT-Stemmer")
    (synopsis "Portuguese language stemming")
    (description "This module implements a Portuguese stemming algorithm
proposed in the paper A Stemming Algorithm for the Portuguese Language by
Moreira, V. and Huyck, C.")
    (license perl-license)))

(define-public perl-lingua-stem
  (package
    (name "perl-lingua-stem")
    (version "0.84")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/S/SN/SNOWHARE/"
                           "Lingua-Stem-" version ".tar.gz"))
       (sha256
        (base32
         "12avh2mnnc7llmmshrr5bgb473fvydxnlqrqbl2815mf2dp4pxcg"))))
    (build-system perl-build-system)
    (native-inputs
     `(("perl-module-build" ,perl-module-build)))
    (propagated-inputs
     `(("perl-lingua-pt-stemmer" ,perl-lingua-pt-stemmer)
       ("perl-lingua-stem-fr" ,perl-lingua-stem-fr)
       ("perl-lingua-stem-it" ,perl-lingua-stem-it)
       ("perl-lingua-stem-ru" ,perl-lingua-stem-ru)
       ("perl-lingua-stem-snowball-da" ,perl-lingua-stem-snowball-da)
       ("perl-snowball-norwegian" ,perl-snowball-norwegian)
       ("perl-snowball-swedish" ,perl-snowball-swedish)
       ("perl-text-german" ,perl-text-german)))
    (home-page "https://metacpan.org/release/Lingua-Stem")
    (synopsis "Stemming of words in various languages")
    (description "This routine applies stemming algorithms to its parameters,
returning the stemmed words as appropriate to the selected locale.")
    (license perl-license)))

(define-public perl-lingua-stem-fr
  (package
    (name "perl-lingua-stem-fr")
    (version "0.02")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/S/SD/SDP/"
                           "Lingua-Stem-Fr-" version ".tar.gz"))
       (sha256
        (base32
         "0vyrspwzaqjxm5mqshf4wvwa3938mkajd1918d9ii2l9m2rn8kwx"))))
    (build-system perl-build-system)
    (home-page "https://metacpan.org/release/Lingua-Stem-Fr")
    (synopsis "Porter's stemming algorithm for French")
    (description "This module uses a modified version of the Porter Stemming
Algorithm to return a stemmed French word.")
    (license perl-license)))

(define-public perl-lingua-stem-it
  (package
    (name "perl-lingua-stem-it")
    (version "0.02")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/A/AC/ACALPINI/"
                           "Lingua-Stem-It-" version ".tar.gz"))
       (sha256
        (base32
         "1207r183s5hlh4mfwa6p46vzm0dhvrs2dnss5s41a0gyfkxp7riq"))))
    (build-system perl-build-system)
    (home-page "https://metacpan.org/release/Lingua-Stem-It")
    (synopsis "Porter's stemming algorithm for Italian")
    (description "This module applies the Porter Stemming Algorithm to its
parameters, returning the stemmed Italian word.")
    (license perl-license)))

(define-public perl-lingua-stem-ru
  (package
    (name "perl-lingua-stem-ru")
    (version "0.04")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/N/NE/NEILB/"
                           "Lingua-Stem-Ru-" version ".tar.gz"))
       (sha256
        (base32
         "0a2jmdz7jn32qj5hyiw5kbv8fvlpmws8i00a6xcbkzb48yvwww0j"))))
    (build-system perl-build-system)
    (home-page "https://metacpan.org/release/Lingua-Stem-Ru")
    (synopsis "Porter's stemming algorithm for Russian")
    (description "This module applies the Porter Stemming Algorithm to its
parameters, returning the stemmed Russian (KOI8-R only) word.")
    (license perl-license)))

(define-public perl-lingua-stem-snowball-da
  (package
    (name "perl-lingua-stem-snowball-da")
    (version "1.01")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/C/CI/CINE/"
                           "Lingua-Stem-Snowball-Da-" version ".tar.gz"))
       (sha256
        (base32
         "0mm0m7glm1s6i9f6a78jslw6wh573208arxhq93yriqmw17bwf9f"))))
    (build-system perl-build-system)
    (home-page "https://metacpan.org/release/Lingua-Stem-Snowball-Da")
    (synopsis "Porters stemming algorithm for Danish")
    (description "Lingua::Stem::Snowball::Da is a perl port of the danish
stemmer at http://snowball.sourceforge.net, it was originally altered from the
Lingua::Stem::Snowball::Se.")
    (license gpl2)))

(define-public perl-snowball-norwegian
  (package
    (name "perl-snowball-norwegian")
    (version "1.2")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/A/AS/ASKSH/"
                           "Snowball-Norwegian-" version ".tar.gz"))
       (sha256
        (base32
         "0675v45bbsh7vr7kpf36xs2q79g02iq1kmfw22h20xdk4rzqvkqx"))))
    (build-system perl-build-system)
    (native-inputs `(("perl-module-build" ,perl-module-build)))
    (home-page "https://metacpan.org/release/Snowball-Norwegian")
    (synopsis "Porters stemming algorithm for Norwegian")
    (description "Lingua::Stem::Snowball::No is a perl port of the norwegian
stemmer at http://snowball.tartarus.org.")
    (license perl-license)))

(define-public perl-snowball-swedish
  (package
    (name "perl-snowball-swedish")
    (version "1.2")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/A/AS/ASKSH/"
                           "Snowball-Swedish-" version ".tar.gz"))
       (sha256
        (base32
         "0agwc12jk5kmabnpsplw3wf4ii5w1zb159cpin44x3srb0sr5apg"))))
    (build-system perl-build-system)
    (native-inputs `(("perl-module-build" ,perl-module-build)))
    (home-page "https://metacpan.org/release/Snowball-Swedish")
    (synopsis "Porters stemming algorithm for Swedish")
    (description "Lingua::Stem::Snowball::Se is a perl port of the swedish
stemmer at http://snowball.sourceforge.net.")
    (license perl-license)))

(define-public perl-string-toidentifier-en
  (package
    (name "perl-string-toidentifier-en")
    (version "0.12")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/R/RK/RKITOVER/"
                           "String-ToIdentifier-EN-" version ".tar.gz"))
       (sha256
        (base32
         "12nw7h2yiybhdw0vnnpc7bif8ylhsn6kqf6s39dsrf9h54iq9yrs"))))
    (build-system perl-build-system)
    (propagated-inputs
     `(("perl-lingua-en-inflect-phrase" ,perl-lingua-en-inflect-phrase)
       ("perl-text-unidecode" ,perl-text-unidecode)
       ("perl-namespace-clean" ,perl-namespace-clean)))
    (home-page "https://metacpan.org/release/String-ToIdentifier-EN")
    (synopsis "Convert strings to English program identifiers")
    (description "This module provides a utility method, \"to_identifier\" for
converting an arbitrary string into a readable representation using the ASCII
subset of \"\\w\" for use as an identifier in a computer program.  The intent
is to make unique identifier names from which the content of the original
string can be easily inferred by a human just by reading the identifier.")
    (license perl-license)))

(define-public perl-text-german
  (package
    (name "perl-text-german")
    (version "0.06")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "mirror://cpan/authors/id/U/UL/ULPFR/"
                           "Text-German-" version ".tar.gz"))
       (sha256
        (base32
         "1p87pgap99lw0nv62i3ghvsi7yg90lhn8vsa3yqp75rd04clybcj"))))
    (build-system perl-build-system)
    (home-page "https://metacpan.org/release/Text-German")
    (synopsis "German grundform reduction")
    (description "This module is a rather incomplete implementation of work
done by Gudrun Putze-Meier.")
    (license perl-license)))

(define* (tegaki-release-uri proj version
                             #:optional (ext "tar.gz"))
  (string-append "https://github.com/tegaki/tegaki/releases/download"
                 "/v" version "/" proj "-" version "." ext))

(define remove-pre-compiled-files
  (lambda exts
    "Return snippet for removing pre-compiled files matching one of the
extensions in EXTS."
    `(begin (for-each delete-file
                      (find-files "."
                                  (lambda (name _)
                                    (any (cut string-suffix? <> name)
                                         (map (cut string-append "." <>)
                                              ',exts)))))
            #t)))

;;; modules required for the above snippet
(define remove-pre-compiled-files-modules
  '((guix build utils)
    (srfi srfi-1)
    (srfi srfi-26)))

(define-public python2-tegaki-wagomu
  (package
    (name "python2-tegaki-wagomu")
    (version "0.3.1")
    (source
     (origin
       (method url-fetch)
       (uri (tegaki-release-uri "tegaki-wagomu" version))
       (sha256
        (base32
         "1pzdiq4zy1nyylaj9i6v2h4h0r05klahskzpafpp367p4rysi1x9"))
       (modules remove-pre-compiled-files-modules)
       (snippet (remove-pre-compiled-files "pyc"))))
    (build-system python-build-system)
    (arguments
     `(#:python ,python-2 ; only Python 2 is supported
       #:phases
       (modify-phases %standard-phases
         (add-after 'unpack 'fix-recognizer
           (lambda* (#:key inputs #:allow-other-keys)
             ;; fix missing module and function
             (substitute* "tegakiwagomu.py"
               (("import Results,")
                "import ")
               (("def _recognize")
                "def recognize")
               (("Results\\(candidates\\)")
                "candidates"))
             #t)))))
    (inputs
     `(("glib" ,glib)))
    (native-inputs
     `(("pkg-config" ,pkg-config)
       ("swig" ,swig)))
    (home-page "https://tegaki.github.io/")
    (synopsis
     "Chinese and Japanese Handwriting Recognition (Recognition engine)")
    (description
     "Tegaki is an ongoing project which aims to develop a free and open-source
modern implementation of handwriting recognition software, specifically
designed for Chinese (simplified and traditional) and Japanese, and that is
suitable for both the desktop and mobile devices.")
    (license gpl2+))) ; all files

(define-public python2-tegaki-python
  (package
    (inherit python2-tegaki-wagomu)
    (name "python2-tegaki-python")
    (version "0.3.1")
    (source
     (origin
       (method url-fetch)
       (uri (tegaki-release-uri "tegaki-python" version))
       (sha256
        (base32
         "0x93k7pw9nh0ywd97pr8pm7jv3f94nw044i5k0zvzhdpsjqvak7p"))
       (modules remove-pre-compiled-files-modules)
       (snippet (remove-pre-compiled-files "pyc"))))
    (arguments
     (substitute-keyword-arguments (package-arguments python2-tegaki-wagomu)
       ((#:phases _)
        `(modify-phases %standard-phases
           (add-after 'unpack 'pre-configure
             (lambda* (#:key inputs #:allow-other-keys)
               ;; Always convert string to unicode to avoid the following error
               ;; when running "tegaki-build" in python2-tegaki-tools:
               ;;
               ;; sqlite3.ProgrammingError: You must not use 8-bit bytestrings
               ;; unless you use a text_factory that can interpret 8-bit
               ;; bytestrings (like text_factory = str).
               ;; It is highly recommended that you instead just switch your
               ;; application to Unicode strings.
               (substitute* "tegaki/charcol.py"
                 (("sqlite3.OptimizedUnicode")
                  "lambda s: unicode(s, 'utf-8')"))
               (substitute* "tegaki/engine.py"
                 (("/usr(/local)?")
                  (assoc-ref inputs "python2-tegaki-wagomu")))
               #t))))))
    ;; override inherited inputs
    (inputs '())
    (native-inputs '())
    (propagated-inputs
     `(("python2-tegaki-wagomu" ,python2-tegaki-wagomu)
       ("python2-zinnia" ,python2-zinnia)))
    (synopsis
     "Chinese and Japanese Handwriting Recognition (Base python library)")
    (license (list gpl2+ ; all files except...
                   bsd-3 ; dictutils.py
                   zpl2.1)))) ; minjson.py

(define-public python2-tegaki-pygtk
  (package
    (inherit python2-tegaki-wagomu)
    (name "python2-tegaki-pygtk")
    (version "0.3.1")
    (source
     (origin
       (method url-fetch)
       (uri (tegaki-release-uri "tegaki-pygtk" version))
       (sha256
        (base32
         "1cip0azxhjdj2dg2z85cp1z3lz4qwx3w1j7z4xmcm7npapmsaqs2"))
       (modules remove-pre-compiled-files-modules)
       (snippet (remove-pre-compiled-files "pyc"))))
    (arguments
     (substitute-keyword-arguments (package-arguments python2-tegaki-wagomu)
       ((#:phases _)
        `(modify-phases %standard-phases
           (add-after 'unpack 'fix-paths
             (lambda* (#:key inputs #:allow-other-keys)
               (substitute* "tegakigtk/fakekey.py"
                 (("libX11.so.6" so)
                  (string-append (assoc-ref inputs "libx11") "/lib/" so))
                 (("libXtst.so.6" so)
                  (string-append (assoc-ref inputs "libxtst") "/lib/" so)))
               #t))))))
    (inputs ; required for sending key strokes
     `(("libx11" ,libx11)
       ("libxtst" ,libxtst)))
    (native-inputs '()) ; override inherited inputs
    (propagated-inputs
     `(("python2-pygtk" ,python2-pygtk)
       ("python2-tegaki-python" ,python2-tegaki-python)))
    (synopsis "Chinese and Japanese Handwriting Recognition (Base UI library)")
    (license gpl2+))) ; all files

(define-public python2-tegaki-tools
  (package
    (inherit python2-tegaki-wagomu)
    (name "python2-tegaki-tools")
    (version "0.3.1")
    (source
     (origin
       (method url-fetch)
       (uri (tegaki-release-uri "tegaki-tools" version))
       (sha256
        (base32
         "0xxv97ggh2jgldw3r7y59lv3fhz733r6l7mdn6nh4m0gvb0ja971"))
       (modules remove-pre-compiled-files-modules)
       (snippet (remove-pre-compiled-files "pyc"))))
    (arguments
     (substitute-keyword-arguments (package-arguments python2-tegaki-wagomu)
       ((#:phases _) '%standard-phases)))
    (inputs
     `(("python2-tegaki-pygtk" ,python2-tegaki-pygtk)))
    ;; override inherited inputs
    (native-inputs '())
    (propagated-inputs '())
    (synopsis "Chinese and Japanese Handwriting Recognition (Advanced tools)")
    ;; Files in gifenc/ are licensed under gpl3+ while other files are licensed
    ;; under gpl2+. Therefore, the combined work is licensed under gpl3+.
    (license gpl3+)))