Re: generate a warning/error if tag is not specified

[Gianmaria Lari]

[ Is there any way to make lilypond complaint with a compilation error/warning in case I don't  specify a \keepWithTag or \removeWithTag?]

On 13 April 2018 at 15:17, Knute Snortum <address@hidden> wrote:

One way would be to use bar line checks (|) and \barNumberCheck:

%%% Start

\version "2.19.81"

var = {

  \time 3/4

  a 

  \tag#'vera a 

  \tag#'verb b

  a |

}

{\var}  %this should generate a warning   

{\keepWithTag #'vera \var} %this is ok!

{\keepWithTag #'verb \var} %this is ok!

{\removeWithTag #'vera \var} %this is ok!

%%% End

Great! I was thinking to something like that but I have no idea what to use to generate the dummy warning/error.

The reason of my question is that when I put a tag sometimes my variable makes sense only if I use it with \keepWithTag or \removeWithTag so I want a warning if I forgot to do it.

Thank you Knute!

g.