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POset<string>: how to list not strings starting with given string and ending with `/`?
 

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  1. POset<string>: how to list not strings starting with given string and ending with `/`?
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    <p>for example we have in our set:</p> <pre><code> bin/obj/Debug/CloudServerPrototype/ra.write.1.tlog bin/obj/Debug/CloudServerPrototype/rc.write.1.tlog bin/obj/Debug/vc100.idb bin/obj/Debug/vc100.pdb </code></pre> <p>So this is what I tried based on this <a href="https://stackoverflow.com/questions/7169320/setstring-how-to-list-not-strings-starting-with-given-string-and-ending-with/7169544#7169544">grate answer</a>:</p> <pre><code>#include &lt;iostream&gt; #include &lt;algorithm&gt; #include &lt;set&gt; #include &lt;string&gt; #include &lt;iterator&gt; using namespace std; struct get_pertinent_part { const std::string given_string; get_pertinent_part(const std::string&amp; s) :given_string(s) { } std::string operator()(const std::string&amp; s) { std::string::size_type first = 0; if (s.find(given_string) == 0) { first = given_string.length() + 1; } std::string::size_type count = std::string::npos; std::string::size_type pos = s.find_last_of("/"); if (pos != std::string::npos &amp;&amp; pos &gt; first) { count = pos + 1 - first; } return s.substr(first, count); } }; void directory_listning_without_directories_demo() { set&lt;string&gt; output; set&lt;string&gt; demo_set; demo_set.insert("file1"); demo_set.insert("file2"); demo_set.insert("folder/file1"); demo_set.insert("folder/file2"); demo_set.insert("folder/folder/file1"); demo_set.insert("folder/folder/file2"); demo_set.insert("bin/obj/Debug/CloudServerPrototype/ra.write.1.tlog"); demo_set.insert("bin/obj/Debug/CloudServerPrototype/rc.write.1.tlog"); demo_set.insert("bin/obj/Debug/vc100.idb"); demo_set.insert("bin/obj/Debug/vc100.pdb"); std::transform(demo_set.begin(), demo_set.end(), std::inserter(output, output.end()), get_pertinent_part("bin/obj/Debug/")); std::copy(output.begin(), output.end(), std::ostream_iterator&lt;std::string&gt;(std::cout, "\n")); } int main() { directory_listning_without_directories_demo(); cin.get(); return 0; } </code></pre> <p>This outputs:</p> <pre><code>CloudServerPrototype/ file1 file2 folder/ folder/folder/ vc100.idb vc100.pdb </code></pre> <p>and we are given with <code>bin/obj/Debug/</code>string. We want to cout:</p> <pre><code>vc100.idb vc100.pdb CloudServerPrototype/ </code></pre> <p>How to do such thing?</p>
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    1. USRella
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    1. COLooks like a combination of `string::find()` and `string::substr()` would do the trick.
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      1. USKerrek SB
    2. CO@Kerrek as for so many other things.
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      1. POset<string>: how to list not strings starting with given string and ending with `/`?
      1. USSeth Carnegie
    3. COWith which part of the `set` iteration, `string` manipulation or `cout` did you get stuck when you tried this?
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      1. POset<string>: how to list not strings starting with given string and ending with `/`?
      1. USJohnsyweb
 

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