X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ffrontends%2Ftests%2Fbiblio.cpp;h=067cc9b4481b5bd6ae14385b3d1ba5a2e8a00a39;hb=273c67d8aa34a724ca03e01ae8e1792949c23297;hp=5a7a376d3e40a33086b9eb07cee86a7cb456eff2;hpb=dbce5cafcc16706a9d6b7e283daf3ac5bee487fb;p=lyx.git

diff --git a/src/frontends/tests/biblio.cpp b/src/frontends/tests/biblio.cpp
index 5a7a376d3e..067cc9b448 100644
--- a/src/frontends/tests/biblio.cpp
+++ b/src/frontends/tests/biblio.cpp
@@ -20,10 +20,17 @@ string const escape_special_chars(string const & expr)
 
 	// $& is a ECMAScript format expression that expands to all
 	// of the current match
-	// The '$' must be prefixed with the escape character '\' for
-	// boost to treat it as a literal.
-	// Thus, to prefix a matched expression with '\', we use:
+#ifdef LYX_USE_STD_REGEX
+	// To prefix a matched expression with a single literal backslash, we
+	// need to escape it for the C++ compiler and use:
+	return lyx::regex_replace(expr, reg, "\\$&");
+#else
+	// A backslash in the format string starts an escape sequence in boost.
+	// Thus, to prefix a matched expression with a single literal backslash,
+	// we need to give two backslashes to the regex engine, and escape both
+	// for the C++ compiler and use:
 	return lyx::regex_replace(expr, reg, "\\\\$&");
+#endif
 }