From 119f2a4b684aae7cec8841412a5fc89bcbae404d Mon Sep 17 00:00:00 2001
From: Jay Berkenbilt <ejb@ql.org>
Date: Sun, 3 Mar 2013 15:48:31 -0500
Subject: Add method to terminate content stream parsing

---
 libqpdf/QPDFObjectHandle.cc | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

(limited to 'libqpdf')

diff --git a/libqpdf/QPDFObjectHandle.cc b/libqpdf/QPDFObjectHandle.cc
index e6f53d08..0c6b0a9d 100644
--- a/libqpdf/QPDFObjectHandle.cc
+++ b/libqpdf/QPDFObjectHandle.cc
@@ -23,6 +23,16 @@
 #include <stdlib.h>
 #include <ctype.h>
 
+class TerminateParsing
+{
+};
+
+void
+QPDFObjectHandle::ParserCallbacks::terminateParsing()
+{
+    throw TerminateParsing();
+}
+
 QPDFObjectHandle::QPDFObjectHandle() :
     initialized(false),
     objid(0),
@@ -728,7 +738,14 @@ QPDFObjectHandle::parseContentStream(QPDFObjectHandle stream_or_array,
             throw std::logic_error(
                 "QPDFObjectHandle: parseContentStream called on non-stream");
         }
-        parseContentStream_internal(stream, callbacks);
+        try
+        {
+            parseContentStream_internal(stream, callbacks);
+        }
+        catch (TerminateParsing&)
+        {
+            return;
+        }
     }
     callbacks->handleEOF();
 }
-- 
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