Downcase Accented characters - Erlang Programming

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Message from discussion Downcase Accented characters
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Date: Sun, 21 Oct 2012 12:45:21 -0700
Message-ID: <CAM5fRyqN2s9UGHH=gDJeXs8B-y3m-q95h=pJvRr5WiCQiZm...@mail.gmail.com>
From: Roberto Ostinelli <robe...@widetag.com>
To: =?ISO-8859-1?Q?Lo=EFc_Hoguin?= <es...@ninenines.eu>
Cc: Erlang <erlang-questi...@erlang.org>
Subject: Re: [erlang-questions] Downcase Accented characters
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BTW,

ux dependencies are unsatisfied:

=3D=3D> ux (get-deps)
Pulling abnfc from {git,"git://github.com/nygge/abnfc.git","master"}
Cloning into 'abnfc'...
Pulling metamodule from {git,"git://github.com/freeakk/metamodule.git",
                             "master"}
fatal: remote error:
  Repository not found.
Cloning into 'metamodule'...
ERROR: git clone -n git://github.com/freeakk/metamodule.git metamodule
failed with error: 128 and output:
fatal: remote error:
  Repository not found.
Cloning into 'metamodule'...

ERROR: 'get-deps' failed while processing



On Sun, Oct 21, 2012 at 12:39 PM, Roberto Ostinelli <robe...@widetag.com>wr=
ote:

> For the records, this just works..
>
> start() ->
> Unicode =3D list_to_binary("=E2=88=9E-HOpe@=E2=98=BA.EXAMple.com/My=E2=9D=
=A4"),
>  Result =3D list_to_binary(string:to_lower(binary_to_list(Unicode))),
> "=E2=88=9E-hope@=E2=98=BA.example.com/my=E2=9D=A4" =3D binary_to_list(Res=
ult).
>
> any downsides I'm not seeing?
>
> On Sun, Oct 21, 2012 at 12:25 PM, Roberto Ostinelli <robe...@widetag.com>=
wrote:
>
>> Thank you Lo=C3=AFc,
>>
>> did you happen to benchmark it? Would that be better/faster than a simpl=
e
>> list_to_binary(string:to_lower(binary_to_list(Bin)))?
>>
>>
>> On Sun, Oct 21, 2012 at 12:18 PM, Lo=C3=AFc Hoguin <es...@ninenines.eu> =
wrote:
>>
>>> On 10/21/2012 09:14 PM, Roberto Ostinelli wrote:
>>>
>>>> Dear list,
>>>>
>>>> I've a binary string which includes accented characters and unicode,
>>>> that i need to downcase.
>>>>
>>>> Is my real best option here to convert everything to list and downcase
>>>> that?
>>>>
>>>
>>> Your current best option is ux_string:to_lower/1 from the ux library
>>> which will properly lower all characters, not just A-Z.
>>>
>>> Should be at https://github.com/erlang-**unicode/ux<https://github.com/=
erlang-unicode/ux>
>>>
>>> --
>>> Lo=C4=8Fc Hoguin
>>> Erlang Cowboy
>>> Nine Nines
>>> http://ninenines.eu
>>>
>>
>>
>

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BTW,<div><br></div><div>ux dependencies are unsatisfied:</div><div><br></di=
v><div><div><font face=3D"courier new, monospace">=3D=3D&gt; ux (get-deps)<=
/font></div><div><font face=3D"courier new, monospace">Pulling abnfc from {=
git,&quot;git://<a href=3D"http://github.com/nygge/abnfc.git">github.com/ny=
gge/abnfc.git</a>&quot;,&quot;master&quot;}</font></div>
<div><font face=3D"courier new, monospace">Cloning into &#39;abnfc&#39;...<=
/font></div><div><font face=3D"courier new, monospace">Pulling metamodule f=
rom {git,&quot;git://<a href=3D"http://github.com/freeakk/metamodule.git">g=
ithub.com/freeakk/metamodule.git</a>&quot;,</font></div>
<div><font face=3D"courier new, monospace">=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0&q=
uot;master&quot;}</font></div><div><font face=3D"courier new, monospace">fa=
tal: remote error:=C2=A0</font></div><div><font face=3D"courier new, monosp=
ace">=C2=A0 Repository not found.</font></div>
<div><font face=3D"courier new, monospace">Cloning into &#39;metamodule&#39=
;...</font></div><div><font face=3D"courier new, monospace">ERROR: git clon=
e -n git://<a href=3D"http://github.com/freeakk/metamodule.git">github.com/=
freeakk/metamodule.git</a> metamodule failed with error: 128 and output:</f=
ont></div>
<div><font face=3D"courier new, monospace">fatal: remote error:=C2=A0</font=
></div><div><font face=3D"courier new, monospace">=C2=A0 Repository not fou=
nd.</font></div><div><font face=3D"courier new, monospace">Cloning into &#3=
9;metamodule&#39;...</font></div>
<div><font face=3D"courier new, monospace"><br></font></div><div><font face=
=3D"courier new, monospace">ERROR: &#39;get-deps&#39; failed while processi=
ng</font></div></div><div><br></div><div><br><br><div class=3D"gmail_quote"=
>On Sun, Oct 21, 2012 at 12:39 PM, Roberto Ostinelli <span dir=3D"ltr">&lt;=
<a href=3D"mailto:robe...@widetag.com" target=3D"_blank">robe...@widetag.co=
m</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">For the records, this just works..<div><br><=
/div><div><div><font face=3D"courier new, monospace">start() -&gt;</font></=
div>
<div><font face=3D"courier new, monospace"><span style=3D"white-space:pre-w=
rap">	</span>Unicode =3D list_to_binary(&quot;=E2=88=9E-HOpe@=E2=98=BA.EXAM=
ple.com/My=E2=9D=A4&quot;),</font></div>
<div><font face=3D"courier new, monospace"><span style=3D"white-space:pre-w=
rap">	</span>Result =3D list_to_binary(string:to_lower(binary_to_list(Unico=
de))),</font></div><div><font face=3D"courier new, monospace"><span style=
=3D"white-space:pre-wrap">	</span>&quot;=E2=88=9E-hope@=E2=98=BA.<a href=3D=
"http://example.com/my" target=3D"_blank">example.com/my</a>=E2=9D=A4&quot;=
 =3D binary_to_list(Result).</font></div>

<div><br></div><div>any downsides I&#39;m not seeing?</div><div><div class=
=3D"h5"><br><div class=3D"gmail_quote">On Sun, Oct 21, 2012 at 12:25 PM, Ro=
berto Ostinelli <span dir=3D"ltr">&lt;<a href=3D"mailto:robe...@widetag.com=
" target=3D"_blank">robe...@widetag.com</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Thank you Lo=C3=AFc,<div><br></div><div>did =
you happen to benchmark it? Would that be better/faster than a simple=C2=A0=
<font face=3D"courier new, monospace">list_to_binary(string:to_lower(binary=
_to_list(Bin)))</font>?<div>

<div><br><br><div class=3D"gmail_quote">
On Sun, Oct 21, 2012 at 12:18 PM, Lo=C3=AFc Hoguin <span dir=3D"ltr">&lt;<a=
 href=3D"mailto:es...@ninenines.eu" target=3D"_blank">es...@ninenines.eu</a=
>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0 =
0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">


<div><div>On 10/21/2012 09:14 PM, Roberto Ostinelli wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
Dear list,<br>
<br>
I&#39;ve a binary string which includes accented characters and unicode,<br=
>
that i need to downcase.<br>
<br>
Is my real best option here to convert everything to list and downcase that=
?<br>
</blockquote>
<br></div></div>
Your current best option is ux_string:to_lower/1 from the ux library which =
will properly lower all characters, not just A-Z.<br>
<br>
Should be at <a href=3D"https://github.com/erlang-unicode/ux" target=3D"_bl=
ank">https://github.com/erlang-<u></u>unicode/ux</a><span><font color=3D"#8=
88888"><br>
<br>
-- <br>
Lo=C4=8Fc Hoguin<br>
Erlang Cowboy<br>
Nine Nines<br>
<a href=3D"http://ninenines.eu" target=3D"_blank">http://ninenines.eu</a><b=
r>
</font></span></blockquote></div><br></div></div></div>
</blockquote></div><br></div></div></div>
</blockquote></div><br></div>

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