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    <p>If you were just looking to see if the string contains a <code>_</code>, <code>-</code>, <code>_</code>, <code>-</code> in that order with arbitrary random junk between, we could do that two ways (you can substitute other separators, but a <code>.</code> needs special treatment in a regexp; either <code>[.]</code> or <code>\.</code> will do):</p> <pre><code>regexp {_.+-.+_.+-} $stringToMatchAgainst </code></pre> <pre><code>string match {*_*-*_*-*} $stringToMatchAgainst </code></pre> <p>OK, technically the last one (which is glob matching) matches something slightly different, but the effect is similar.</p> <p>However I'm not sure that the above is what you're really looking for. At a guess you're really after the <code>word</code>s? Possibly also the separators.</p> <p>To get a list of the words, we use a somewhat different technique (can't use <code>\w</code> as that matches underline as well because that's common in identifiers):</p> <pre><code>set wordList [regexp -all -inline {[a-zA-Z0-9]+} $stringToMatchAgainst] </code></pre> <p>If you're after the separators too, the easiest method is to use <a href="http://tcllib.sourceforge.net/doc/textutil_split.html" rel="nofollow"><code>textutil::split::splitx</code></a> from Tcllib:</p> <pre><code>package require textutil::split set tokenList [textutil::split::splitx $stringToMatchAgainst {([-_.])} ] </code></pre> <p>In the last case, with an input string of <code>word_word-word_word_word-word</code> it gives this output:</p> <pre><code>word _ word - word _ word _ word - word </code></pre>
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    1. COthank you for your perfect answer, it is exactly what im looking for.
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