<p>We remove the underscore character temporarily from the wordchars<br>
to make Scintilla split words on underscore.<br>
After splitting the current line into words, we add the underscore again<br>
to the document's wordchars setting if it was in before.</p>
<p>Fixes <a href="https://github.com/geany/geany-plugins/issues/496" class="issue-link js-issue-link" data-url="https://github.com/geany/geany-plugins/issues/496" data-id="187296009" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#496</a>.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/geany/geany-plugins/pull/512'>https://github.com/geany/geany-plugins/pull/512</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>SpellCheck: Treat underscore as word seperator</li>
  <li>SpellCheck: Reset wordchars only if we modified it before</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/geany/geany-plugins/pull/512/files#diff-0">spellcheck/src/speller.c</a>
    (29)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/geany/geany-plugins/pull/512.patch'>https://github.com/geany/geany-plugins/pull/512.patch</a></li>
  <li><a href='https://github.com/geany/geany-plugins/pull/512.diff'>https://github.com/geany/geany-plugins/pull/512.diff</a></li>
</ul>

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