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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - No documentation about proper conversion of system file names into URLs in Calc"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=134896">134896</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>No documentation about proper conversion of system file names into URLs in Calc
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Documentation
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>libreoffice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mikekaganski@hotmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>erack@redhat.com, olivier.hallot@libreoffice.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>There is HYPERLINK function in Calc, that is documented [1] [2] to take
URL/IRI. There's also ENCODEURL [3] to properly URL-encode various strings.
Yet, the latter function is not enough to convert random system filepath into
proper file: URL on all platforms. E.g., on Windows, the conversion also
includes replacing backslashes '\' with forward-slashes '/'. A naive attempt to
concatenate "file://" with "c:\path to\file.ext" would result in invalid URL;
also concatenating "file://" with ENCODEURL("c:\path to\file.ext") is not
correct.

But in fact, LibreOffice does the magic of proper conversion of system
filepaths into URLs: clicking on a cell with

<span class="quote">> =HYPERLINK("c:\path to\file.ext")</span >

would result in attempt to open proper "file:///c:/path%20to/file.ext". The
magic happens in ScGlobal::OpenURL calling ScGlobal::GetAbsDocName.

I suppose it's worth mentioning that on HYPERLINK help page, to avoid users
trying to create file URLs in various wrong ways.

Refs: <a href="https://ask.libreoffice.org/en/question/255719/">https://ask.libreoffice.org/en/question/255719/</a>,
<a href="https://ask.libreoffice.org/en/question/142052/">https://ask.libreoffice.org/en/question/142052/</a>

[1]
<a href="https://help.libreoffice.org/6.4/en-US/text/scalc/01/04060109.html?DbPAR=CALC#bm_id9959410">https://help.libreoffice.org/6.4/en-US/text/scalc/01/04060109.html?DbPAR=CALC#bm_id9959410</a>
[2]
docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part2.html#__RefHeading__1018226_715980110
[3]
<a href="https://help.libreoffice.org/6.4/en-US/text/scalc/01/func_webservice.html?DbPAR=CALC#bm_id811517136840444">https://help.libreoffice.org/6.4/en-US/text/scalc/01/func_webservice.html?DbPAR=CALC#bm_id811517136840444</a></pre>
        </div>
      </p>


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