Enforce proper ordering of heading levels: specifically, ensure the

user doesn't skip a heading level (\H before any \C or \A, or \S
straight after \C with no intervening \H). The precise criterion is
that when creating section a.b.c.d, sections a.b.c, a.b and a should
already exist. This ensures the section tree really is a properly
formed tree with no missing nodes.

[originally from svn r1329]

1 files changed, 2 insertions, 0 deletions

diff --git a/main.c b/main.c
index 079aba8..b7be46f 100644
--- a/main.c
+++ b/main.c
@@ -197,6 +197,8 @@ int main(int argc, char **argv) {
 	sfree(infiles);
 
 	keywords = get_keywords(sourceform);
+	if (!keywords)
+	    exit(EXIT_FAILURE);
 	gen_citations(sourceform, keywords);
 	subst_keywords(sourceform, keywords);