Ampersand entities

ruby-talk
1

Hi all

How can I convert from utf-8 to HMTL ampersand entities and from HTML
ampersand entities to utf-8 (I'm searching it a lot but I can found it)?

Thanks in advance

···

--

Miquel (a.k.a. Ton)
Linux User #286784
GPG Key : 4D91EF7F
Debian GNU/Linux (Linux Wolverine 2.6.14)

Welcome to the jungle, we got fun and games
Guns n' Roses

______________________________________________
LLama Gratis a cualquier PC del Mundo.
Llamadas a fijos y móviles desde 1 céntimo por minuto.
http://es.voice.yahoo.com

2

Miquel Oliete wrote:

Hi all

How can I convert from utf-8 to HMTL ampersand entities and from HTML
ampersand entities to utf-8 (I'm searching it a lot but I can found it)?

Thanks in advance

iconv from UTF8 to UTF16, add up the two bytes, pray it wasn't a
surrogate pair, and convert to hex?

David Vallner

3

UTF-8 to HTML convertion is trivial.
HTML to UTF-8 is almost trivial, you just need to decide the set of
supported &-entities. This example handles only &#xHEX; and &,
but it should be obvious how to extend it to other entities (if you
want to do so).

class String
    def utf8_to_html
        gsub(/([^\000-\177])|(&)/u) {
            if $2
                "&"
            else
                sprintf("&#x%x;", $1.unpack("U")[0])
            end
        }
    end
    def html_to_utf8
        gsub(/&(?:#x([0-9a-fA-F]+)|(amp));/) {
            if $2
                "&"
            else
                [$1.hex].pack "U"
            end
        }
    end
end

···

On 11/13/06, Miquel Oliete <ktalanet@yahoo.es> wrote:

Hi all

How can I convert from utf-8 to HMTL ampersand entities and from HTML
ampersand entities to utf-8 (I'm searching it a lot but I can found it)?

Thanks in advance

--
Tomasz Wegrzanowski [ http://t-a-w.blogspot.com/ ]

4

Hello,

Try this:

str = 'äñÇáè&#8364;'
str.unpack("U*").collect { |s| (s > 127 ? "&##{s};" : s.chr) }.join("")

···

--
Pau Garcia i Quiles
http://www.elpauer.org
(Due to the amount of work, I usually need 10 days to answer)

Quoting Miquel Oliete <ktalanet@yahoo.es>:

Hi all

How can I convert from utf-8 to HMTL ampersand entities and from HTML
ampersand entities to utf-8 (I'm searching it a lot but I can found it)?

Thanks in advance

--

Miquel (a.k.a. Ton)
Linux User #286784
GPG Key : 4D91EF7F
Debian GNU/Linux (Linux Wolverine 2.6.14)

Welcome to the jungle, we got fun and games
Guns n' Roses

______________________________________________
LLama Gratis a cualquier PC del Mundo.
Llamadas a fijos y móviles desde 1 céntimo por minuto.
http://es.voice.yahoo.com

5

Thanks to everybody. I will try your answers tonight at home.

Bye

···

On Tue, 14 Nov 2006 09:18:44 +0900 "Tomasz Wegrzanowski" <tomasz.wegrzanowski@gmail.com> wrote:

On 11/13/06, Miquel Oliete <ktalanet@yahoo.es> wrote:
> Hi all
>
> How can I convert from utf-8 to HMTL ampersand entities and from
> HTML ampersand entities to utf-8 (I'm searching it a lot but I can
> found it)?
>
> Thanks in advance

UTF-8 to HTML convertion is trivial.
HTML to UTF-8 is almost trivial, you just need to decide the set of
supported &-entities. This example handles only &#xHEX; and &amp;,
but it should be obvious how to extend it to other entities (if you
want to do so).

class String
    def utf8_to_html
        gsub(/([^\000-\177])|(&)/u) {
            if $2
                "&amp;"
            else
                sprintf("&#x%x;", $1.unpack("U")[0])
            end
        }
    end
    def html_to_utf8
        gsub(/&(?:#x([0-9a-fA-F]+)|(amp));/) {
            if $2
                "&"
            else
                [$1.hex].pack "U"
            end
        }
    end
end

______________________________________________
LLama Gratis a cualquier PC del Mundo.
Llamadas a fijos y móviles desde 1 céntimo por minuto.
http://es.voice.yahoo.com