diff --git a/all.h b/all.h
index ce29b53..31d9add 100644
--- a/all.h
+++ b/all.h
@@ -686,6 +686,7 @@ fn u32 stringLineStartByteOffset(String s, u32 line_number);
 fn bool stringInsertBytesAt(String* s, str bytes, u32 at);
 fn bool stringInsertBytesAtMaybeAlloc(Arena* a, String* s, str bytes, u32 at);
 fn u32 stringFindNextCharPosFrom(String s, u32 from, u8 c);
+fn bool textPosEq(TextPos a, TextPos b);
 
 ///// OS-wrapped apis
 void      osInit();
diff --git a/string.c b/string.c
index 4d801a7..373eb23 100644
--- a/string.c
+++ b/string.c
@@ -505,3 +505,8 @@ fn u32 stringFindNextCharPosFrom(String s, u32 from, u8 c) {
   }
   return s.length;
 }
+
+fn bool textPosEq(TextPos a, TextPos b) {
+  return a.line == b.line && a.column == b.column;
+}
+