My first post in this thread pointed out there is NO inherent distinction. Any distinction would have to be imposed by you, the designer. Any distinction we come up with would be arbitrary and thus have limitations, so we can't answer your question.
We really can't help you until you explain what \dth\d\file.txt should become.
- Should the first "\" should be escaped?
- Yes? What if the user wants to match "4th..." and "5th...", but not "\dth..."?
- No? What if the user wants to match "\dth...", but not "4th..." and "5th..."?
- Should the second "\" should be escaped?
- Yes? What if the user wants to match "...th4..." and "...th5...", but not "...th\d..."?
- No? What if the user wants to match "...th\d...", but not "...th4..." and "...th5..."?
- Should the "." should be escaped?
- Yes? What if the user wants to match "...file_txt"?
- No? What if the user doesn't want to match "...file_txt"?
We can show you how if you tell us what you want, but you haven't given us nearly enough information.
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Are you posting in the right place? Check out Where do I post X? to know for sure.
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Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
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Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
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Want more info? How to link
or How to display code and escape characters
are good places to start.
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