Handling special characters in WString
Added by Alan Finley over 11 years ago
I get a QString from a database, then convert it to a WString and set to a widget:
QString str = ...
Wt::WString text = Wt::WString::fromUTF8(str.toUtf8().data());
Wt::WText *textWidget = new Wt::WText;
textWidget->setTextFormat(Wt::PlainText);
textWidget->setText(text);
If a string from database contains some special characters (for exmaple 'square' symbol), my page doesn't load and I get a popup "Wt internal error: SyntaxError".
How do I handle special non-printable characters in WString?
Replies (2)
RE: Handling special characters in WString - Added by Alan Finley over 11 years ago
Alan Finley wrote:
for exmaple 'square' symbol
Sorry, it's not the 'square' symbol causes that problem. It's some character ofQChar::Separator_Linecategory. But I have no idea what it is.
RE: Handling special characters in WString - Added by Wim Dumon over 11 years ago
Can reproduce this with the following change to the hello example:
greeting_->setText(WString::fromUTF8("Hello there,\xE2\x80\xA8 ", true) + nameEdit_->text());
Learning every day. Line separator characters (which may not occur in string literals) in JS are:
\u000A Line Feed <LF>
\u000D Carriage Return <CR>
\u2028 Line separator <LS>
\u2029 Paragraph separator <PS>
Wt escapes and , but not or . That should be considered a bug, since it will cause parse errors in the browser.
I created #1996 for you.
BR,
Wim.