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Good to hear it, versailles. &nbsp;Thanks for the points.<br />
<br />
How about my comments about '_' and leading '-'?
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Good to hear it, versailles.  Thanks for the points.

How about my comments about '_' and leading '-'?

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I used the leading - filter, Thx !<br />
_ are not permitted in DNs.<br />
best
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I used the leading - filter, Thx !
_ are not permitted in DNs.
best

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<i>&gt; &quot;I used the leading - filter, Thx !&quot;</i><br />
<br />
Does that mean that leading '-' are permitted or not?
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> "I used the leading - filter, Thx !"

Does that mean that leading '-' are permitted or not?

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<div class="content wysiwyg-content">
I have a filter in a perl script which works for a decade. I am not familiar anymore with perl. I wish to update it and I do not know how to do it.<br />
<br />
The filter reads as: &nbsp; if &nbsp;($dn !~ /^[a-zA-Z0-9\-]{3,}$/). This is to make sure a domain name string is longer than two chars and only made of letters, figures and &quot;-&quot;. I would like to add that the first character cannot be a &quot;0&quot; (zero).<br />
<br />
How is the string to read for obtaing that?<br />
Thanks a lot<br />
Best
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</div>


I have a filter in a perl script which works for a decade. I am not familiar anymore with perl. I wish to update it and I do not know how to do it.

The filter reads as:   if  ($dn !~ /^[a-zA-Z0-9\-]{3,}$/). This is to make sure a domain name string is longer than two chars and only made of letters, figures and "-". I would like to add that the first character cannot be a "0" (zero).

How is the string to read for obtaing that?
Thanks a lot
Best

Perl string filter

Perl is a high-level, general-purpose, interpreted, dynamic programming languages with over 25 years of development. Perl 5 runs on over 100 platforms from portables to mainframes and is suitable for both rapid prototyping and large-scale development projects.  Perl gained widespread popularity as a Common Gateway Interface (CGI) scripting language, in part due to its regular expression and string parsing abilities. In addition to CGI, Perl is used for graphics programming, system administration, network programming, finance, bioinformatics, and other applications.