Consider sub-subfiles on log file parsing.

These are listed as (subfile.ext (sub-subfile.ext))

Fixes: #11112
(cherry picked from commit 1e1800a21a)

src/LaTeX.cpp

@@ -1081,8 +1081,8 @@ bool completeFilename(string const & ff, DepTable & head)
 }
 
 
-int iterateLine(string const & token, regex const & reg, string const & closing,
-		int fragment_pos, DepTable & head)
+int iterateLine(string const & token, regex const & reg, string const & opening,
+		string const & closing, int fragment_pos, DepTable & head)
 {
 	smatch what;
 	string::const_iterator first = token.begin();
@@ -1099,6 +1099,15 @@ int iterateLine(string const & token, regex const & reg, string const & closing,
 				// since we had a closing bracket,
 				// do not investigate further
 				fragment = false;
+			} else if (what.str(2) == opening) {
+				// if we have another opening bracket,
+				// we might have a nested file chain
+				// as is (file.ext (subfile.ext))
+				fragment = !handleFoundFile(rtrim(what.str(1)), head);
+				// decrease first position by one in order to
+				// consider the opening delimiter on next iteration
+				if (first > token.begin())
+					--first;
 			} else
 				// if we have no closing bracket,
 				// try to handle as file nevertheless
@@ -1282,7 +1291,7 @@ void LaTeX::deplog(DepTable & head)
 		if (regex_match(token, sub, reg5)) {
 			// search for strings in <...>
 			static regex const reg5_1("<([^>]+)(.)");
-			fragment_pos = iterateLine(token, reg5_1, ">",
+			fragment_pos = iterateLine(token, reg5_1, "<", ">",
 						   fragment_pos, head);
 			fragment = (fragment_pos != -1);
 		}
@@ -1295,7 +1304,7 @@ void LaTeX::deplog(DepTable & head)
 		if (regex_match(token, sub, reg6)) {
 			// search for strings in (...)
 			static regex const reg6_1("\\(([^()]+)(.)");
-			fragment_pos = iterateLine(token, reg6_1, ")",
+			fragment_pos = iterateLine(token, reg6_1, "(", ")",
 						   fragment_pos, head);
 			fragment = (fragment_pos != -1);
 		}

status.23x

@@ -130,6 +130,8 @@ What's new
 
 - Load hyperref with a suitable driver (bug 6418).
 
+- Recompile grandchildren when they have updated (bug 11112).
+
 
 * LYX2LYX