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--- a/src/common/textsplit.cpp
+++ b/src/common/textsplit.cpp
@@ -136,6 +136,14 @@
     }
 };
 static const CharClassInit charClassInitInstance;
+
+void TextSplit::backslashAsLetter(bool on) {
+    if (on) {
+        charclasses[int('\\')] = A_LLETTER;
+    } else {
+        charclasses[int('\\')] = SPACE;
+    }
+}
 
 static inline int whatcc(unsigned int c)
 {