;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016 José Miguel Sánchez García <jmi2k@openmailbox.org>
;;; Copyright © 2016 Carlo Zancanaro <carlo@zancanaro.id.au>
;;; Copyright © 2017 Eric Bavier <bavier@member.fsf.org>
;;; Copyright © 2017 Feng Shu <tumashu@163.com>
;;; Copyright © 2017 ng0 <ng0@infotropique.org>
;;; Copyright © 2014 Taylan Ulrich Bayırlı/Kammer <taylanbayirli@gmail.org>
;;; Copyright © 2017 Tobias Geerinckx-Rice <me@tobias.gr>
;;;
;;; 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 text-editors)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix git-download)
  #:use-module (guix utils)
  #:use-module (guix build-system gnu)
  #:use-module (guix build-system glib-or-gtk)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (gnu packages)
  #:use-module (gnu packages assembly)
  #:use-module (gnu packages boost)
  #:use-module (gnu packages documentation)
  #:use-module (gnu packages gcc)
  #:use-module (gnu packages glib)
  #:use-module (gnu packages gtk)
  #:use-module (gnu packages libbsd)
  #:use-module (gnu packages lua)
  #:use-module (gnu packages ncurses)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages regex)
  #:use-module (gnu packages ruby)
  #:use-module (gnu packages terminals)
  #:use-module (gnu packages xml))

(define-public vis
  (package
    (name "vis")
    (version "0.4")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://github.com/martanne/"
                                  name "/archive/v" version ".tar.gz"))
              (file-name (string-append name "-" version ".tar.gz"))
              (sha256
               (base32
                "1iclfsc9vn40fqfiz56vrw6dmr4x8q9gvav0b53kkpc6zcfa86zi"))))
    (build-system gnu-build-system)
    (arguments
     `(#:test-target "test"
       #:tests? #f                  ; no releases; snapshots are missing tests
       #:phases
       (modify-phases %standard-phases
         (add-after 'install 'wrap-binary
           (lambda* (#:key inputs outputs #:allow-other-keys)
             (let* ((out (assoc-ref outputs "out"))
                    (lpeg (assoc-ref inputs "lua-lpeg"))
                    (lua-version ,(version-major+minor (package-version lua)))
                    (LUA_PATH (string-append lpeg "/share/lua/"
                                             lua-version "/?.lua"))
                    (LUA_CPATH (string-append lpeg "/lib/lua/"
                                              lua-version "/?.so")))
               (wrap-program (string-append out "/bin/vis")
                 `("LUA_PATH" ":" prefix (,LUA_PATH))
                 `("LUA_CPATH" ":" prefix (,LUA_CPATH)))
               #t))))))
    (native-search-paths
     (list (search-path-specification
            (variable "VIS_PATH")
            (files '("share/vis")))))
    (inputs `(("lua", lua)
              ("ncurses", ncurses)
              ("libtermkey", libtermkey)
              ("lua-lpeg", lua-lpeg)
              ("tre" ,tre)))
    (synopsis "Vim-like text editor")
    (description
     "Vis aims to be a modern, legacy free, simple yet efficient vim-like text
editor.  It extends vim's modal editing with built-in support for multiple
cursors/selections and combines it with sam's structural regular expression
based command language.")
    (home-page "https://github.com/martanne/vis")
    (license (list license:isc               ; Main distribution.
                   license:public-domain     ; map.[ch]
                   license:expat))))         ; lexers and libutf.[ch]

(define-public kakoune
  (let ((commit "125c8b7e80995732e0d8c87b82040025748f1b4f")
        (revision "1"))
    (package
      (name "kakoune")
      (version (string-append "0.0.0-" revision "." (string-take commit 7)))
      (source
       (origin
         (file-name (string-append "kakoune-" version "-checkout"))
         (method git-fetch)
         (uri (git-reference
               (url "https://github.com/mawww/kakoune.git")
               (commit commit)))
         (sha256
          (base32
           "19qs99l8r9p1vi5pxxx9an22fvi7xx40qw3jh2cnh2mbacawvdyb"))))
      (build-system gnu-build-system)
      (arguments
       `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out")))
         #:phases
         (modify-phases %standard-phases
           (add-after 'unpack 'patch-source
             (lambda _
               ;; kakoune uses confstr with _CS_PATH to find out where to find
               ;; a posix shell, but this doesn't work in the build
               ;; environment. This substitution just replaces that result
               ;; with the "sh" path.
               (substitute* "src/shell_manager.cc"
                 (("if \\(m_shell.empty\\(\\)\\)" line)
                  (string-append "m_shell = \"" (which "sh")
                                 "\";\n        " line)))
               #t))
           (delete 'configure)
           ;; kakoune requires us to be in the src/ directory to build
           (add-before 'build 'chdir
             (lambda _ (chdir "src") #t))
           (add-before 'check 'fix-test-permissions
             (lambda _
               ;; Out git downloader doesn't give us write permissions, but
               ;; without them the tests fail.
               (zero? (system* "chmod" "-R" "u+w" "../test")))))))
      (native-inputs `(("asciidoc" ,asciidoc)
                       ("ruby" ,ruby)))
      (inputs `(("ncurses" ,ncurses)
                ("boost" ,boost)))
      (synopsis "Vim-inspired code editor")
      (description
       "Kakoune is a code editor heavily inspired by Vim, as such most of its
commands are similar to Vi's ones, and it shares Vi's \"keystrokes as a text
editing language\" model.  Kakoune has a strong focus on interactivity, most
commands provide immediate and incremental results, while still being
competitive (as in keystroke count) with Vim.")
      (home-page "http://kakoune.org/")
      (license license:unlicense))))

(define-public joe
  (package
    (name "joe")
    (version "4.4")
    (source
     (origin
       (method url-fetch)
       (uri (string-append "https://sourceforge.net/projects/joe-editor/"
                           "files/JOE sources/joe-" version "/"
                           "joe-" version ".tar.gz"))
       (sha256
        (base32
         "0y898r1xlrv75m00y598rvwwsricabplyh80wawsqafapcl4hw55"))))
    (build-system gnu-build-system)
    (inputs `(("ncurses" ,ncurses)))
    (home-page "http://joe-editor.sourceforge.net/")
    (synopsis "Console screen editor")
    (description
     "JOE is a powerful console screen editor with a \"mode-less\" user
interface similar to many user-friendly editors.  JOE has some of the key
bindings and many of the powerful features of GNU Emacs.")
    (license license:gpl3+)))

(define-public leafpad
  (package
    (name "leafpad")
    (version "0.8.18.1")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://download.savannah.gnu.org/releases/"
                                  "leafpad/leafpad-" version ".tar.gz"))
              (sha256
               (base32
                "0b0az2wvqgvam7w0ns1j8xp2llslm1rx6h7zcsy06a7j0yp257cm"))))
    (build-system glib-or-gtk-build-system)
    (native-inputs
     `(("intltool" ,intltool)
       ("pkg-config" ,pkg-config)))
    (inputs
     `(("gtk+" ,gtk+-2)))
    (home-page "http://tarot.freeshell.org/leafpad/")
    (synopsis "GTK+ based text editor")
    (description "Leafpad is a GTK+ text editor that emphasizes simplicity.  As
development focuses on keeping weight down to a minimum, only the most essential
features are implemented in the editor.  Leafpad is simple to use, is easily
compiled, requires few libraries, and starts up quickly. ")
    (license license:gpl2+)))

(define-public e3
  (package
    (name "e3")
    (version "2.82")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://sites.google.com/site/e3editor/Home/"
                                  "e3-" version ".tgz"))
              (sha256
               (base32
                "0919kadkas020maqq37852isnzp053q2fnws2zh3mz81d1jiviak"))
              (modules '((guix build utils)))

              ;; Remove pre-built binaries.
              (snippet '(delete-file-recursively "bin"))))
    (build-system gnu-build-system)
    (arguments
     `(#:tests? #f
       #:make-flags (list (string-append "PREFIX="
                                         (assoc-ref %outputs "out")))
       #:phases (modify-phases %standard-phases
                  (delete 'configure))))
    (native-inputs
     `(("nasm" ,nasm)))
    (home-page "https://sites.google.com/site/e3editor/")
    (synopsis "Tiny text editor written in assembly")
    (description
     "e3 is a micro text editor with an executable code size between 3800 and
35000 bytes.  Except for ``syntax highlighting'', the e3 binary supports all
of the basic functions one expects plus built in arithmetic calculations.
UTF-8 coding of unicode characters is supported as well.  e3 can use
Wordstar-, EMACS-, Pico, Nedit or vi-like key bindings.  e3 can be used on
16, 32, and 64-bit CPUs.")
    (supported-systems '("x86_64-linux" "i686-linux"))
    (license license:gpl2+)))

(define-public mg
  (package
    (name "mg")
    (version "20170401")
    (source (origin
              (method url-fetch)
              (uri (string-append "https://homepage.boetes.org/software/mg/mg-"
                                  version ".tar.gz"))
              (sha256
               (base32
                "1arasswgdadbb265rahq3867r9s54jva6k4m3p5n0f8mgjqhhdha"))
              (modules '((guix build utils)))
              (snippet
               '(begin
                  (substitute* "GNUmakefile"
                    (("/usr/bin/") ""))))))
    (build-system gnu-build-system)
    (native-inputs
     `(("pkg-config" ,pkg-config)))
    (inputs
     `(("libbsd" ,libbsd)
       ("ncurses" ,ncurses)))
    (arguments
     ;; No test suite available.
     '(#:tests? #f
       #:make-flags (list (string-append "prefix=" %output)
                          "CURSES_LIBS=-lncurses"
                          "CC=gcc")
       #:phases (modify-phases %standard-phases
                  (delete 'configure)
                  (add-before 'build 'correct-location-of-difftool
                    (lambda _
                      (substitute* "buffer.c"
                        (("/usr/bin/diff")
                         (which "diff")))
                      #t))
                  (add-before 'install 'patch-tutorial-location
                    (lambda* (#:key outputs #:allow-other-keys)
                      (substitute* "mg.1"
                        (("/usr") (assoc-ref outputs "out")))
                      #t))
                  (add-after 'install 'install-tutorial
                    (lambda* (#:key outputs #:allow-other-keys)
                      (let* ((out (assoc-ref outputs "out"))
                             (doc (string-append out "/share/doc/mg")))
                        (install-file "tutorial" doc)
                        #t))))))
    (home-page "http://homepage.boetes.org/software/mg/")
    (synopsis "Microscopic GNU Emacs clone")
    (description
     "Mg (mg) is a GNU Emacs style editor, with which it is \"broadly\"
compatible.  This is a portable version of the mg maintained by the OpenBSD
team.")
    (license license:public-domain)))