Merge pull request #14 from Jblew/_jl_fix_sigsegv_on_entry_without_an…

…y_fields fix: SIGSEGV on empty fields, closes #13
nickng · Apr 25, 2022 · 61c36c5 · 61c36c5
2 parents 8943063 + e86f514
commit 61c36c5
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Showing 3 changed files with 48 additions and 41 deletions.
diff --git a/bibtex.y b/bibtex.y
@@ -69,7 +69,7 @@ tag : /* empty */                { }
     | tBAREIDENT tEQUAL longstring { $$ = &bibTag{key: $1, val: $3} }
     ;
 
-tags : tag            { $$ = []*bibTag{$1} }
+tags : tag            { if $1 != nil { $$ = []*bibTag{$1}; } }
      | tags tCOMMA tag { if $3 == nil { $$ = $1 } else { $$ = append($1, $3) } }
      ;
 

diff --git a/bibtex.y.go b/bibtex.y.go
diff --git a/example/empty-fields.bib b/example/empty-fields.bib
@@ -0,0 +1,4 @@
+
+@misc{noauthor_notitle_nodate,
+}
+