Using special characters in XML documents

Question

I would like to know how to use the character "
" (LINE FEED) to separate some information in an attribute. Look the example below:

<element attrinfo="info1=109&#xA;info2=108&#xA;info3=107" />

I use SetAttribute() to set the attribute's text, but when the I save the XML, the information in attrinfo looks like that:

<element attrinfo="info1=109&amp;#xA;info2=108&amp;#xA;info3=107" />

The "&" is a special character, so the XML substitutes it by "&"

How can I solve this? I saw something about use Entity Reference but I don't understand how to use it.

Here is my code using \n:

ls_DadosAdicionais = "volume=1800;peso=78;altura=157"
ll_pos = POS( ls_DadosAdicionais, ";" ) 
DO
    ls_DadosAdicionais = REPLACE( ls_DadosAdicionais, ll_pos, 1, '~n' )
    ll_pos = POS( ls_DadosAdicionais, ";", ll_pos + 1 )
LOOP WHILE ll_pos > 0
lo_exm = io_xml.createElement( "exame")
lo_exm.SetAttribute( "dados_adicionais", ls_DadosAdicionais )

Answer 1

You should save the actual line feed character to the attribute. The escaping is taken care of by the API.

In other words: If you save the string "
", the API correctly escapes it as "
", so that you get back the string "
" when you read the data again. Always store the data you want to store, never do any manual escaping.

Answer 2

SetAttributes does the entity translation automatically. Don't substitute the newline manually. Just include the \n in the string you pass to SetAttribute. It should get translated to the proper entity when you save.