Fix silly mistake 2: Not setting aux location, and add test for nested aux files

Author: CraftSpider

crates/engine_bibtex/src/c_api/pool.rs

@@ -285,7 +285,8 @@ pub unsafe extern "C" fn pre_def_certain_strings(ctx: *mut Bibtex) -> CResult {
     let ctx = &mut *ctx;
     let res = with_hash_mut(|hash| {
         with_pool_mut(|pool| {
-            pool.lookup_str_insert(hash, b".aux", StrIlk::FileExt)?;
+            let res = pool.lookup_str_insert(hash, b".aux", StrIlk::FileExt)?;
+            ctx.s_aux_extension = hash.text(res.loc);
 
             let res = pool.lookup_str_insert(hash, b"\\citation", StrIlk::AuxCommand)?;
             hash.set_ilk_info(res.loc, 2);

tests/bibtex.rs

@@ -160,3 +160,8 @@ fn test_single_preamble() {
 fn test_many_preamble() {
     TestCase::new("many", Some("preamble")).go();
 }
+
+#[test]
+fn test_nested_aux() {
+    TestCase::new("nested", Some("aux")).go();
+}

tests/bibtex/aux/nested.aux

@@ -0,0 +1 @@
+\@input{nested2.aux}

tests/bibtex/aux/nested.bbl

@@ -0,0 +1,8 @@
+\begin{thebibliography}{1}
+
+\bibitem{Book01}
+Author McAuthor.
+\newblock {\em The book of all time}.
+\newblock Publisher, 1998.
+
+\end{thebibliography}

tests/bibtex/aux/nested.bib

@@ -0,0 +1,6 @@
+@book { Book01,
+    author = "Author McAuthor",
+    title = "The book of all time",
+    year = "1998",
+    publisher = "Publisher",
+}

tests/bibtex/aux/nested.blg

@@ -0,0 +1,7 @@
+This is BibTeX, Version 0.99d
+Capacity: max_strings=35307, hash_size=35307, hash_prime=30011
+The top-level auxiliary file: nested.aux
+A level-1 auxiliary file: nested2.aux
+A level-2 auxiliary file: nested3.aux
+The style file: ../plain.bst
+Database file #1: nested.bib

tests/bibtex/aux/nested2.aux

@@ -0,0 +1 @@
+\@input{nested3.aux}

tests/bibtex/aux/nested3.aux

@@ -0,0 +1,4 @@
+\relax
+\citation{Book01}
+\bibstyle{../plain}
+\bibdata{nested}