1 files changed, 46 insertions, 0 deletions
diff --git a/db/json.cpp b/db/json.cpp
new file mode 100644
index 00000000000..6c875ab95d4
--- /dev/null
+++ b/db/json.cpp
@@ -0,0 +1,46 @@
+// json.cpp
+
+#include "stdafx.h"
+#include "json.h"
+#include "../util/builder.h"
+
+/* partial implementation for now */
+
+void skipWhite(const char *&p) { 
+	while( *p == ' ' || *p == '\r' || *p == '\n' || *p == '\t' )
+		p++;
+}
+
+void value(JSObjBuilder& b, const char *&p, string& id) { 
+	if( strncmp(p, "ObjId()", 7) == 0 ) {
+		p += 7;
+		b.appendOID(id.c_str());
+	}
+}
+
+void _fromjson(JSObjBuilder& b, const char *&p) { 
+	while( 1 ) { 
+		skipWhite(p);
+		if( *p == 0 )
+			break;
+		if( *p == '{' ) { _fromjson(b,++p); continue; }
+		if( *p == '}' ) { ++p; break; }
+		if( *p == '_' || isalpha(*p) ) { 
+			string id;
+			while( *p == '_' || isalpha(*p) || isdigit(*p)  ) { 
+				id += *p++;
+			}
+			skipWhite(p);
+			assert( *p == ':' ); p++;
+			skipWhite(p);
+			value(b, p, id);
+			continue;
+		}
+	}
+}
+
+JSObj fromjson(const char *str) { 
+	JSObjBuilder b;
+	_fromjson(b,str);
+	return b.doneAndDecouple();
+}