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javaswingjtextpane

JTextPane replace string in document

I had JTextPane with content type HTML 

JTextPane editor = new JTextPane();
editor.setContentType("text/html");

When user input "\" I want to be inputted "&#92" (code of "\"). How can I do it?

Solution

  • When user input "\" I want to be inputted "&#92" (code of "\"). How can I do it?

    Use a DocumentFilter to translate the string before it is entered into the Document.

    Read the section from the Swing tutorial on How to Implement a DocumentFilter for more information to get you started.

    To override the replace(...) method you might do something like:

    public void replace(final FilterBypass fb, final int offs, final int length, final String str, final AttributeSet a)
{
    if (str.equals("\"))
        super.replace(fb, ofs, length, "&#92", a);
    else
        super.replace(fb, offs, length, str, a);
}