Thanks for mentioning this. I too have encountered this problem. Ken Wolcott
On Sun, Sep 18, 2022 at 11:33 AM Mats Bengtsson <matsboxergr...@gmail.com> wrote: > > Hi, > > I've been pondering about a missing feature in LilyPond, namely the > possibility to get a warning printout if there isn't an explicit bar check > ("|") in the input file at the end of each measure. This would catch many of > the typos I personally do when entering music, where I happen to forget to > change a duration, or enter the wrong duration, so that the current default > duration happens to be, say, double the correct duration. > > Example: Let's say I want to type > > \relative c' { > c4 d e2 | > g1 | > g4 f e d | > c1 > } > but forget to add the duration "4" in the third measure:\relative c' { > c4 d e2 | > g1 | > g f e d | > c1 > } > Obviously, this will not give any bar check warning, but if there was a > possibility to get a warning also for missing bar checks, I would immediately > catch those mistakes. This feature should not be on by default, but for those > of us who consequently add bar checks in the input files, it would be > extremely helpful. > > In another email thread today, Valentine provided an implementation of a > Bar_check_warning_egraver is somewhat along the same lines, but that > unfortunatly fails to catch the typo in the above example since it only > detects notes where the duration crosses a bar line. As far as I can see, > the idea of Valentine's implementation cannot easily be extended to do what > I'm after and it's not immediately obvious to me how hard it would be to > implement it. Perhaps some of you clever LilyPond hackers on the list have an > idea, otherwise I will send it as a feature request to the bug list. > > /Mats