Clarifying the clarification: Actually, what OP said was "The version is not always of the same format." The request is for sufficient info to have some notion of the range of variant formulae possible.

If all the possibilities in that range are (readily) amenable to recognition with a regex, then the question of which kind of "'Multibyte' characters" might help in writing a regex.

If the range would make regex|regexen unacceptable (read, for example, as: 'so complex as to make execution unacceptably slow'), then another approach is required.

Perhaps the above is simply a more precise reforumulation of your intent in para 1. If so, well done!

In reply to Re^3: Regex for Multibyte Characters by ww
in thread Regex for Multibyte Characters by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.