Hi Prashant, <div class="gmail_quote">2013/2/17 Prashant Pandey <<a href="mailto:prashant3.yishu@gmail.com" target="_blank">prashant3.yishu@gmail.com</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="HOEnZb"><div class="h5">Hi, <div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> I need some guidance as am stuck at a place. How should I replace 'erase' using guidelines given under <a href="https://wiki.documentfoundation.org/Development/String_Classes" target="_blank">https://wiki.documentfoundation.org/Development/String_Classes</a>. If I try to fit 'replaceAt' in place of 'erase' in the line bolded below: aRealStyle.Erase(aRealStyle.Search(aSep) + aSep.Len()); it will give me error (if I do : aRealStyle.replaceAt(aRealStyle.indexOf(aSep) + aSep.getLength());) Reason: replaceAt defined as: rtl::OUString rtl::OUString::replaceAt(sal_Int32, sal_Int32, const rtl::OUString&) const (candidate expects 3 arguments, 1 provided) error: no matching function for call to ‘rtl::OUString::replaceAt(sal_Int32) My question is, what should I pass inside the replaceAt() parameters/arguments? </blockquote></div></div></div></blockquote></div> I would suggest you write this: sal_int32 idx = aRealStyle.indexOf(aSep) + aSep.getLength(); aRealStyle = aRealStyle.replaceAt(idx, aRealStyle.getLength() - aRealStyle, ""); Because: <ul><li>If nIndex is set then can use replaceAt with an arg of an empty string (from the wiki page) </li><li>The second argument is the count, and here we replace until the end of the string</li><li>Since OUString is immutable, you must assign back the resulting OUString if you do not want to lose it</li> </ul>Cheers, Jean-Noël