Add new writeJSON methods

Create an alternative to getJSON to allow an object handle to be written as JSON without the overhead of creating a JSON object.

1 files changed, 16 insertions, 0 deletions

diff --git a/libqpdf/QPDF_Real.cc b/libqpdf/QPDF_Real.cc
index 1d954dcd..af96c9df 100644
--- a/libqpdf/QPDF_Real.cc
+++ b/libqpdf/QPDF_Real.cc
@@ -1,5 +1,6 @@
 #include <qpdf/QPDF_Real.hh>
 
+#include <qpdf/JSON_writer.hh>
 #include <qpdf/QUtil.hh>
 
 QPDF_Real::QPDF_Real(std::string const& val) :
@@ -56,3 +57,18 @@ QPDF_Real::getJSON(int json_version)
     }
     return JSON::makeNumber(result);
 }
+
+void
+QPDF_Real::writeJSON(int json_version, JSON::Writer& p)
+{
+    if (this->val.length() == 0) {
+        // Can't really happen...
+        p << "0";
+    } else if (this->val.at(0) == '.') {
+        p << "0" << this->val;
+    } else if (this->val.length() >= 2 && this->val.at(0) == '-' && this->val.at(1) == '.') {
+        p << "-0." << this->val.substr(2);
+    } else {
+        p << this->val;
+    }
+}