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I have the labels, which include a few of the same characters "/". Unfortunately, I cannot simply use the "Wrap on character" option, because it wraps everywhere where this character occurs.
I am wondering about the option, which would allow me to wrap the text at some nth character instead of each.
Using QGIS expressions and @BERA suggestion:
in the label field write the expression:
regexp_replace ("FieldName", '(.+)(/)(.+)$','\\1:\\3')
then, use : to return the last part of the text
/, not necessarily the 4th and not every 4.
regexp_replace( 'VON/FLN/CBF-DUN2/A1/FDN199', '(.+)(/)(.+)(/)(.+)(/)(.+)(/)(.+)','\\1\\2\\3\\4\\5\\6\\7:\\9'): to replace the 4th /
array_to_string(array_slice( string_to_array('VON/FLN/CBF-DUN2/A1/FDN199','/'),0,3),'/') || '\n' || array_to_string( array_slice( string_to_array('VON/FLN/CBF-DUN2/A1/FDN199','/'),4,-1),'/')
Another solution using Arrays.
If you want to do it every x times, you can use arrays like this:
with_variable('pos',"pos",
array_to_string(array_slice( string_to_array("text",'/'),0,eval(@pos)),'/')
||'\n'|| -- new line
array_to_string( array_slice( string_to_array("text",'/'),eval(@pos)+1,-1),'/'))
the "pos" attribute has a range of 0-3, because arrays start at zero.
