From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitry Nikolaev <cameltheman@gmail.com>
Subject: Ampersand sign (&) in URL.
Date: Tue, 4 Oct 2016 13:50:04 +0300
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Hello. I've tried to package PT Astra font

http://astralinux.com/fonts.html

But it's download URL contains ampersand sign (&).

http://astralinux.com/images/fonts/PTAstraSans&Serif_TTF_ver1001.zip

Guix returns

build failed: invalid character `&' in name
`PTAstraSans&Seif_TTF_ver1001.zip.drv'

How do I escape & in URL so guix accept it?

Dmitry Nikolaev

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<div dir=3D"ltr"><div><div><div><div>Hello. I&#39;ve tried to package PT As=
tra font<br><br><a href=3D"http://astralinux.com/fonts.html">http://astrali=
nux.com/fonts.html</a><br><br></div>But it&#39;s download URL contains ampe=
rsand sign (&amp;). <br><br><a href=3D"http://astralinux.com/images/fonts/P=
TAstraSans&amp;Serif_TTF_ver1001.zip">http://astralinux.com/images/fonts/PT=
AstraSans&amp;Serif_TTF_ver1001.zip</a><br><br>Guix returns<br><br></div>bu=
ild failed: invalid character `&amp;&#39; in name `PTAstraSans&amp;Seif_TTF=
_ver1001.zip.drv&#39;<br><br></div>How do I escape &amp; in URL so guix acc=
ept it?<br><br></div>Dmitry Nikolaev<br></div>

--001a11401bb8bcb220053e07d2cb--

From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hartmut Goebel <h.goebel@goebel-consult.de>
Subject: Re: Ampersand sign (&) in URL.
Date: Tue, 4 Oct 2016 12:56:56 +0200
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Am 04.10.2016 um 12:50 schrieb Dmitry Nikolaev:
> How do I escape & in URL so guix accept it?

Try "%26", which is the hex-representation of the ascii-code of "&".

--=20
Sch=C3=B6nen Gru=C3=9F
Hartmut Goebel
Dipl.-Informatiker (univ), CISSP, CSSLP, ISO 27001 Lead Implementer
Information Security Management, Security Governance, Secure Software
Development

Goebel Consult, Landshut
http://www.goebel-consult.de

Blog: http://www.goebel-consult.de/blog/feiertagsarbeit-bei-teletrust
Kolumne:
http://www.cissp-gefluester.de/2012-01-in-die-cloud-in-die-cloud-aber-wo-=
soll-die-sein



--------------090107090909020102050307
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<html>
  <head>
    <meta content=3D"text/html; charset=3Dutf-8" http-equiv=3D"Content-Ty=
pe">
  </head>
  <body text=3D"#000000" bgcolor=3D"#FFFFFF">
    <div class=3D"moz-cite-prefix">Am 04.10.2016 um 12:50 schrieb Dmitry
      Nikolaev:<br>
    </div>
    <blockquote
cite=3D"mid:CAH3JXcEka334NZ2FjmUNo6ZF30tkkqFXcJZDCSqVCvOdwXqr4w@mail.gmai=
l.com"
      type=3D"cite">How do I escape &amp; in URL so guix accept it?</bloc=
kquote>
    <br>
    Try "%26", which is the hex-representation of the ascii-code of
    "&amp;".<br>
    <br>
    <div class=3D"moz-signature">-- <br>
      <span style=3D"color:black">
        Sch=C3=B6nen Gru=C3=9F <br>
        Hartmut Goebel <br>
      </span>
      <span style=3D"font-size:smaller">Dipl.-Informatiker (univ), CISSP,=

        CSSLP, ISO 27001 Lead Implementer</span><br>
      <span style=3D"font-size:smaller">Information Security Management,
        Security Governance, Secure Software Development</span>
      <p style=3D"color:black" lang=3D"de">
        Goebel Consult, Landshut <br>
        <a style=3D"color:black" href=3D"http://www.goebel-consult.de">ht=
tp://www.goebel-consult.de</a>
      </p>
      <p style=3D"color:grey;font-size:smaller">
        Blog:
        <a style=3D"color:grey !important;text-decoration:none !important=
"
href=3D"http://www.goebel-consult.de/blog/feiertagsarbeit-bei-teletrust">=
http://www.goebel-consult.de/blog/feiertagsarbeit-bei-teletrust</a>
        <br>
        Kolumne:
        <a style=3D"color:grey !important;text-decoration:none !important=
"
href=3D"http://www.cissp-gefluester.de/2012-01-in-die-cloud-in-die-cloud-=
aber-wo-soll-die-sein">http://www.cissp-gefluester.de/2012-01-in-die-clou=
d-in-die-cloud-aber-wo-soll-die-sein</a>
      </p>
    </div>
  </body>
</html>

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From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitry Nikolaev <cameltheman@gmail.com>
Subject: Re: Ampersand sign (&) in URL.
Date: Tue, 4 Oct 2016 15:44:37 +0300
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--001a11402c466bb355053e096c18
Content-Type: text/plain; charset=UTF-8

>>build failed: invalid character `&' in name `PTAstraSans&Seif_TTF_ver1001.
zip.drv

>Try "%26", which is the hex-representation of the ascii-code of "&".

build failed: invalid character `%' in name `PTAstraSans%26Seif_TTF_ver1001.
zip.drv

Dmitry Nikolaev

--001a11402c466bb355053e096c18
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<div dir=3D"ltr"><div dir=3D"ltr"><div><div>&gt;&gt;build failed: invalid c=
haracter `&amp;&#39; in name `PTAstraSans&amp;Seif_TTF_ver1001.<wbr>zip.drv=
<br></div></div></div><div class=3D"gmail_extra"><div class=3D"gmail_quote"=
><div><br><font color=3D"#000000">&gt;Try &quot;%26&quot;, which is the hex=
-representation of the ascii-code of
    &quot;&amp;&quot;.</font> <br><br>build failed: invalid character `%&#3=
9; in name `PTAstraSans%26Seif_TTF_ver1001.<wbr>zip.drv<br><br></div><div>D=
mitry Nikolaev<br></div></div></div></div>

--001a11402c466bb355053e096c18--

From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: Ampersand sign (&) in URL.
Date: Tue, 04 Oct 2016 15:35:06 +0200
Message-ID: <87d1jg8cfp.fsf@gnu.org>
References: <CAH3JXcEka334NZ2FjmUNo6ZF30tkkqFXcJZDCSqVCvOdwXqr4w@mail.gmail.com>
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	(Dmitry Nikolaev's message of "Tue, 4 Oct 2016 13:50:04 +0300")
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Dmitry Nikolaev <cameltheman@gmail.com> skribis:

> But it's download URL contains ampersand sign (&).
>
> http://astralinux.com/images/fonts/PTAstraSans&Serif_TTF_ver1001.zip
>
> Guix returns
>
> build failed: invalid character `&' in name
> `PTAstraSans&Seif_TTF_ver1001.zip.drv'
>
> How do I escape & in URL so guix accept it?

Instead of escaping it, add a =E2=80=98file-name=E2=80=99 field in the =E2=
=80=98origin=E2=80=99 form
that does not contain the offending character:

  (origin
    (method url-fetch)
    (uri =E2=80=A6)
    (sha256 =E2=80=A6)
    (file-name "the-font.zip"))

HTH!
Ludo=E2=80=99.

From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vincent Legoll <vincent.legoll@gmail.com>
Subject: Re: Ampersand sign (&) in URL.
Date: Tue, 4 Oct 2016 16:43:22 +0200
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Hello,

> Dmitry Nikolaev <cameltheman@gmail.com> skribis:
>> build failed: invalid character `&' in name

Where is this restriction coming from ?
Could the error message add some help/hint about "adding (file-name ...)" ?

-- 
Vincent Legoll