diff --git a/xfa/fxfa/parser/cxfa_dataexporter.cpp b/xfa/fxfa/parser/cxfa_dataexporter.cpp
index 70748f2..dda93a3 100644
--- a/xfa/fxfa/parser/cxfa_dataexporter.cpp
+++ b/xfa/fxfa/parser/cxfa_dataexporter.cpp
@@ -49,25 +49,9 @@
   return textBuf.MakeString();
 }
 
-const uint16_t g_XMLValidCharRange[][2] = {{0x09, 0x09},
-                                           {0x0A, 0x0A},
-                                           {0x0D, 0x0D},
-                                           {0x20, 0xD7FF},
-                                           {0xE000, 0xFFFD}};
 bool IsXMLValidChar(wchar_t ch) {
-  int32_t iStart = 0;
-  int32_t iEnd = FX_ArraySize(g_XMLValidCharRange) - 1;
-  while (iStart <= iEnd) {
-    int32_t iMid = (iStart + iEnd) / 2;
-    if (ch < g_XMLValidCharRange[iMid][0]) {
-      iEnd = iMid - 1;
-    } else if (ch > g_XMLValidCharRange[iMid][1]) {
-      iStart = iMid + 1;
-    } else {
-      return true;
-    }
-  }
-  return false;
+  return ch == 0x09 || ch == 0x0A || ch == 0x0D ||
+         (ch >= 0x20 && ch <= 0xD7FF) || (ch >= 0xE000 && ch <= 0xFFFD);
 }
 
 CFX_WideString ExportEncodeContent(const CFX_WideStringC& str) {