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Lilypond 2.17.26 coredumps on tuplet with only skips

From: Rutger Hofman
Subject: Lilypond 2.17.26 coredumps on tuplet with only skips
Date: Thu, 12 Sep 2013 10:40:54 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130804 Thunderbird/17.0.8

Good morning bug list,

I get a core dump with the current development version(s) 2.17.24-1, 2.17.26-1, Ubuntu 12.04 64-bit.

A very minimal example that triggers the bug is attached.

Lilypond reports:
/usr/share/lilypond/lilypond-2.17/bin/lilypond berg-adagio-snippet-coredump.ly
GNU LilyPond 2.17.26
Processing `berg-adagio-snippet-coredump.ly'
Interpreting music...
programming error: stopped tuplet bracket has neither left nor right bound
continuing, cross fingers
Preprocessing graphical objects...make: *** [berg-adagio-snippet-coredump.pdf] Segmentation fault (core dumped)

Of course, if a skip is replaced by a note, everything works fine.

Context: in one of my complicated scores (Berg Kammerkonzert Adagio), multiple TextSpanners must live at the same time to accomodate Berg's many, many instructions. Empty tuplets are required sometimes to bind the Spanners to the correct time. Or, dynamics start somewhere after the start of a note, and the dynamic must be bound to a skip.

This used to work up to 2.16 at least.

Rutger Hofman

Attachment: berg-adagio-snippet-coredump.ly
Description: Text Data

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