Add QUtil::hex_decode

1 files changed, 8 insertions, 0 deletions

diff --git a/include/qpdf/QUtil.hh b/include/qpdf/QUtil.hh
index e8b9e8e1..a6be68f8 100644
--- a/include/qpdf/QUtil.hh
+++ b/include/qpdf/QUtil.hh
@@ -104,6 +104,14 @@ namespace QUtil
     QPDF_DLL
     std::string hex_encode(std::string const&);
 
+    // Returns a string that is the result of decoding the input
+    // string. The input string may consist of mixed case hexadecimal
+    // digits. Any characters that are not hexadecimal digits will be
+    // silently ignored. If there are an odd number of hexadecimal
+    // digits, a trailing 0 will be assumed.
+    QPDF_DLL
+    std::string hex_decode(std::string const&);
+
     // Set stdin, stdout to binary mode
     QPDF_DLL
     void binary_stdout();