;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
;;; Copyright © 2013, 2016, 2017 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2016 Efraim Flashner <efraim@flashner.co.il>
;;;
;;; 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 gv)
  #:use-module (gnu packages)
  #:use-module (gnu packages ghostscript)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages pkg-config)
  #:use-module (gnu packages xorg)
  #:use-module ((guix licenses) #:prefix license:)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu))

(define-public gv
  (package
   (name "gv")
   (version "3.7.4")
   (source (origin
            (method url-fetch)
            (uri (string-append "mirror://gnu/gv/gv-"
                                version ".tar.gz"))
            (sha256 (base32
                     "0q8s43z14vxm41pfa8s5h9kyyzk1fkwjhkiwbf2x70alm6rv6qi1"))))
   (build-system gnu-build-system)
   (arguments
    '(#:phases (modify-phases %standard-phases
                 (add-before 'configure 'set-gs-file-name
                   (lambda* (#:key inputs #:allow-other-keys)
                     ;; Set the value of 'GV.gsInterpreter' in the generated
                     ;; 'gv_system.ad' file.
                     (let ((gs (assoc-ref inputs "ghostscript")))
                       (with-fluids ((%default-port-encoding "ISO-8859-1"))
                        (substitute* "src/Makefile.in"
                          (("GV\\.gsInterpreter:([[:blank:]]+)gs" _ blank)
                           (string-append "GV.gsInterpreter:" blank
                                          gs "/bin/gs"))
                          (("GV\\.gsCmd([[:alpha:]]+):([[:blank:]]+)gs" _
                            command blank)
                           (string-append "GV.gsCmd" command ":"
                                          blank gs "/bin/gs"))))
                       #t))))))
   (inputs `(("ghostscript" ,ghostscript/x)
             ("libx11" ,libx11)
             ("libxaw3d" ,libxaw3d)
             ("libxinerama" ,libxinerama)
             ("libxpm" ,libxpm)
             ("zlib" ,zlib)))
   (native-inputs
     `(("pkg-config" ,pkg-config)))
   (synopsis "PostScript and PDF viewer using Ghostscript as a back-end")
   (description
    "GNU GV is a graphical user interface to the Ghostscript interpreter.
With it, one can view and navigate through PostScript and PDF documents in X
Windows.")
   (license license:gpl3+)
   (home-page "https://www.gnu.org/software/gv/")))
exception' form for protocol (0 1 1).
* tests/inferior.scm ("&amp;inferior-exception"): Check the value returned
by 'inferior-exception-stack'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-03-17 15:46:15 +0100'>2020-03-17</span></td><td><a href='/guix/commit/tests/inferior.scm?id=9d0c2c6e5226bbd11e710bd4efa8f25e9ffb5a86'>tests: Fix up reference to 'guile-2.2'.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a followup to b6bee63bed4f013064c0d902e7c8b83ed7514ade.

* tests/inferior.scm ("inferior-package-search-paths"): Refer to
'guile-3.0' instead of 'guile-2.2'.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-03-12 11:52:38 +0100'>2020-03-12</span></td><td><a href='/guix/commit/tests/inferior.scm?id=f7537e30b892cef09d91902547c00e5fa9b66f3b'>inferior: Distinguish inferior exceptions.</a><span class='msg-avail'>...<span class='msg-tooltip'>This avoids ambiguities when looking at a backtrace where the exception
was actually thrown by an inferior in a very different context.

* guix/inferior.scm (&amp;inferior-exception): New condition type.
(read-repl-response): Add optional 'inferior' parameter.  Raise
'&amp;inferior-exception' instead of rethrowing to KEY when receiving an
'exception' message.
(read-inferior-response): Pass INFERIOR to 'read-repl-response'.
* tests/inferior.scm ("&amp;inferior-exception"): New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-21 16:48:36 +0200'>2019-09-21</span></td><td><a href='/guix/commit/tests/inferior.scm?id=71507435225f10d8d944ba183cbcc77ef953e0e5'>inferior: Propagate '&amp;store-protocol-error' error conditions.</a><span class='msg-avail'>...<span class='msg-tooltip'>Until now '&amp;store-protocol-error' conditions raised in the inferior
would not be correctly propagated because SRFI-35 records lack a read
syntax.

Reported at &lt;https://bugs.gnu.org/37449&gt;
by Carl Dong &lt;contact@carldong.me&gt;.

* guix/inferior.scm (port-&gt;inferior): Import (srfi srfi-34) in the inferior.
(inferior-eval-with-store): Define 'error?' and 'error-message'.  Wrap
call to PROC in 'guard'.  Check the response of INFERIOR for a
'store-protocol-error' or a 'result' tag.
* tests/inferior.scm ("inferior-eval-with-store, &amp;store-protocol-error"):
New test.
</span></span></td><td>Ludovic Courtès</td></tr>