🚀 go-pugleaf

Here you go. This assumes that your character style is at the top level of the panel. If you're using style groups, you'll need to write code to get at the style you want to use.

//DESCRIPTION: Delete text in named character style

(function() { 
  if (app.documents.length > 0) { 
    deleteStyledText(app.documents[0]); 
  } 
  function deleteStyledText(aDoc) { 
    var cStyle = aDoc.characterStyles.item("CharStyleName"); 
    setupFindText(); 
    app.findTextPreferences.appliedCharacterStyle = cStyle; 
    aDoc.changeText(); 
  } 
  function setupFindText(find, change, wholeWd, caseSense, foots, hidLayers, lockedLayers, lockedStories, masters) { 
    app.findTextPreferences = null; 
    app.changeTextPreferences = null; 
    try { app.findTextPreferences.findWhat = find } catch(e) {}; 
    try {app.changeTextPreferences.changeTo = change } catch(e) {}; 
    app.findChangeTextOptions.properties = { 
      caseSensitive:(caseSense == null ? false : caseSense), 
      wholeWord:(wholeWd == null ? false : wholeWd), 
      includeFootnotes:(foots == null ? false : foots), 
      includeHiddenLayers:(hidLayers == null ? false : hidLayers), 
      includeLockedLayersForFind:(lockedLayers == null ? false : lockedLayers), 
      includeLockedStoriesForFind:(lockedStories == null ? false : lockedStories), 
      includeMasterPages:(masters == null ? false : masters) 
    } 
  } // end setupFindText 
}()) 


Dave