Convert text links into html link

Question

Convert text links into html link

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#1 by (3 votes)

3

I saw the solution here Convert a link from text in a href link and several others and I ended up adapting to my need, but there are some problems.

I need to convert the links and the links from image to image and hyperlink I'm doing the following.

$reply = preg_replace(
            "/(?<![\>https?:\/\/|href=\"'])(?<http>(https?:[\/][\/]|www\.)([a-z]|[A-Z]|[0-9]|[\/.;&?=#_\-\+\ ]|[~])*)/",
            "<a href=\"$1\">$1</a>",
            $reply
        );

        $reply = preg_replace('~<a[^>]*?href="(.*?(gif|jpeg|jpg|png|GIF|JPEG|JPG))".*?</a>~', '<img src="$1" />', $reply);

        $reply = preg_replace("/<a(.*?)>/", "<a$1 target=\"_blank\">", $reply);

example:

&lt;center&gt; &lt;a href=&quot;http://www.yoble.com.br/Community/434&quot;&gt; &lt;img src=&quot;https://lh4.ggpht.com/-05_v3FOUAlc/VHPHsM_MObI/AAAAAAAABeQ/4FodgebUMe0/s00/FDS043.png&quot;&gt;

The above code is to be viewed as code so that address should not be converted.

Well I notice that I get any link and convert to a href, then I check if it is an image and I change the <a> by <img> and lastly I add to the target links. The problems, links containing "," do not work, when the user uses a link formatted with an image in the middle he tries to do this conversion, I would like to ignore these ready links and just add to target=\"_blank\">"

Thank you.

php regex

asked by anonymous 18.03.2015 / 01:57

1 answer

Return from Struct in C "Transparent" text in java

score 3 · Accepted Answer

To deal with HTML editing, regular expressions are not the best hit: solutions based on html / xml parsers are most appropriate.

However, keeping the initial question approach:

$reply = preg_replace('~(?<![\'"])(https?://\S+(gif|jpe?g|png))~i',  ## jpeg  -> img
                      "<img src='$1'>", $reply);

$reply = preg_replace('~(?<![\'"])(https?://\S+)~',                  ## http  -> a href
                      "<a href='$1' target='_blank'>$1</a>", $reply);

$reply = preg_replace('~(?<![\'"/])(www.\w\S+)~',                    ## www.x -> a href
                      "<a href='http://$1' target='_blank'>$1</a>", $reply);

EDIT 1 : (removed for being contained in issue 2)

EDIT2 : Replacing% with% with% with% will only occur if URL is not you are following URL or <f href='URL'>URL</a> .

To deal with situations of previously annotated links and other situations not to annotate, I added:

a ' tag before the address (because it drops a " to the address, this will not be annotated)

In the end we removed the mark

that is:

$contexto_esq = '   <a\s.*?>\s*           # proteger após <a...>
                  | &quot;                # proteger após &quot,
                ';

$txt= preg_replace("~($contexto_esq)( https? | www. )~ix",        # add ''PrOtEcT''
                      "$1''PrOtEcT''$2", $txt);

$txt= preg_replace('~(?<![\'"])(https?://\S+(gif|jpe?g|png))~i',  # jpeg -> img
                      "<img src='$1'>", $txt);

$txt= preg_replace('~(?<![\'"])(https?://\S+)~',                  # http -> a href
                      "<a href='$1' target='_blank'>$1</a>", $txt);

$txt= preg_replace('~(?<![\'"/])(www.\w\S+)~',                    # www. -> a hreg
                      "<a href='http://$1' target='_blank'>$1</a>", $txt);

$txt= preg_replace("~''PrOtEcT''~","",$txt);                      # remove ''PrOtEcT''

Test Policy As the exercise conditions are not set and are always changing, it is crucial to use a set of test samples (which ideally should being in the utterance)

$txt =  <<<EOD
1) anotar com <a>:
http://n.u.pt/  mais  www.di.br e http://www.di.br 
2) não anotar:
"http://n.u.pt/sss1"  e 'www.di.br' e 'http://www.di.br' 
3) anotar com <img>:
http://n.u.pt/sss2.jpg  e ainda http://www.di.br/dir/f.png
4) não anotar:
"http://n.u.pt/sss3.jpg"  e ainda 'http://www.di.br/dir/f.png'
5) já anotado:
<a href="http://n.u.pt/" target="_blank">http://n.u.pt/</a>
6) já anotadao
<a href="http://n.u.pt/" target="_blank">   http://n.u.pt/f.jpg</a>
7) não anotar:
href=&quot;http://www.yoble.com.br/Community/434&quot;&gt; &lt;img 

EOD;

In the present case you are producing:

1) anotar com <a>:
<a href='http://n.u.pt/' target='_blank'>http://n.u.pt/</a>  mais  <a href='http://www.di.br' target='_blank'>www.di.br</a> e <a href='http://www.di.br' target='_blank'>http://www.di.br</a>
2) não anotar:
"http://n.u.pt/sss1"  e 'www.di.br' e 'http://www.di.br'
3) anotar com <img>:
<img src='http://n.u.pt/sss2.jpg'>  e ainda <img src='http://www.di.br/dir/f.png'>
4) não anotar:
"http://n.u.pt/sss3.jpg"  e ainda 'http://www.di.br/dir/f.png'
5) já anotado:
<a href="http://n.u.pt/" target="_blank">http://n.u.pt/</a>
6) já anotadao
<a href="http://n.u.pt/" target="_blank">   http://n.u.pt/f.jpg</a>
7) não anotar:
href=&quot;http://www.yoble.com.br/Community/434&quot;&gt; &lt;img