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    <p>You can use StringReplace:</p> <pre><code>var str:String; begin str:='The_aLiEn'+Chr(VK_TAB)+'Delphi'; ShowMessage(str); str:=StringReplace(str, chr(VK_Tab), '', [rfReplaceAll]); ShowMessage(str); end; </code></pre> <p>This omits all Tab characters from given string. But you can improve it, if you want leading and trailing tabs to be removed then you can use Pos function also.</p> <p><strong>Edit:</strong> For the comment asking how to do it with Pos, here it is:</p> <pre><code>var str:String; s, e: PChar; begin str:=Chr(VK_TAB)+Chr(VK_TAB)+'The_aLiEn'+Chr(VK_TAB)+'Delphi'+Chr(VK_TAB)+Chr(VK_TAB); s:=PChar(str); while Pos(Chr(VK_TAB), s)=1 do inc(s); e:=s; inc(e, length(s)-1); while Pos(Chr(VK_TAB), e)=1 do dec(e); str:=Copy(s, 1, length(s)-length(e)+1); ShowMessage(str); end; </code></pre> <p>It is of course <strong>the same</strong> approach by Maksee's and a bit more job to do as it is. But if there isn't much time to finish the work and if <strong>Pos</strong> is what you've thought first, then this is how it can be done. You, the programmer <strong>should</strong> and <strong>have to</strong> think about optimizations, not me. And if we're talking constraints of optimization, with a little tweak to replace Pos with char compare, this will run faster than Maksee's code.</p> <p><strong>Edit for Substr search generalization:</strong></p> <pre><code>function TrimStr(const Source, SubStr: String): String; var s, e: PChar; l: Integer; begin s:=PChar(Source); l:=Length(SubStr); while Pos(SubStr, s)=1 do inc(s, l); e:=s; inc(e, length(s)-l); while Pos(SubStr, e)=1 do dec(e, l); Result:=Copy(s, 1, length(s)-length(e)+l); end; </code></pre>
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    1. POHow to trim any character (or a substring) from a string?
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    1. CODid you read my question? I need to trim the string, but not replace all the tabs in it
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    2. COI was adding an edit ;)
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    3. COFor this answer to be any good at all, you'd need to at least demonstrate or describe how you think the Pos function would work for this task. Otherwise, I feel like you haven't understood the question at all.
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