Added support for amalgated source and header generation (a la sqlite). Refer to README.txt section "Generating amalgated source and header" for detail.

The amalgated sources are generated by concatenating JsonCpp source in the correct order and defining macro JSON_IS_AMALGATED to prevent inclusion of other headers. Sources and header has been modified to prevent any inclusion when this macro is defined.

The script amalgate.py handle the generation.

NEWS.txt

@@ -13,6 +13,10 @@
     Notes: you need to setup the environment by running vcvars32.bat 
     (e.g. MSVC 2008 command prompt in start menu) before running scons.
     
+  - Added support for amalgated source and header generation (a la sqlite).
+    Refer to README.txt section "Generating amalgated source and header"
+    for detail.
+    
 * Value
 
   - Removed experimental ValueAllocator, it caused static 

README.txt

@@ -90,11 +90,37 @@ Notes that the documentation is also available for download as a tarball.
 The documentation of the latest release is available online at:
 http://jsoncpp.sourceforge.net/
 
+* Generating amalgated source and header
+  ======================================
+
+JsonCpp is provided with a script to generate a single header and a single
+source file to ease inclusion in an existing project.
+
+The amalgated source can be generated at any time by running the following
+command from the top-directory (requires python 2.6):
+
+python amalgate.py
+
+It is possible to specify header name. See -h options for detail. By default,
+the following files are generated:
+- dist/jsoncpp.cpp: source file that need to be added to your project
+- dist/json/json.h: header file corresponding to use in your project. It is
+equivalent to including json/json.h in non-amalgated source. This header
+only depends on standard headers. 
+- dist/json/json-forwards.h: header the provides forward declaration
+of all JsonCpp types. This typically what should be included in headers to
+speed-up compilation.
+
+The amalgated sources are generated by concatenating JsonCpp source in the
+correct order and defining macro JSON_IS_AMALGATED to prevent inclusion of
+other headers.
 
 * Using json-cpp in your project:
   ===============================
 
-include/ should be added to your compiler include path. jsoncpp headers should be included as follow:
+include/ should be added to your compiler include path. jsoncpp headers 
+should be included as follow:
+
 #include <json/json.h>
   
 

include/json/config.h

@@ -28,6 +28,12 @@
 /// instead of C assert macro.
 # define JSON_USE_EXCEPTION 1
 
+/// If defined, indicates that the source file is amalgated
+/// to prevent private header inclusion.
+/// Remarks: it is automatically defined in the generated amalgated header.
+// #define JSON_IS_AMALGATED
+
+
 # ifdef JSON_IN_CPPTL
 #  include <cpptl/config.h>
 #  ifndef JSON_USE_CPPTL

include/json/features.h

@@ -6,7 +6,9 @@
 #ifndef CPPTL_JSON_FEATURES_H_INCLUDED
 # define CPPTL_JSON_FEATURES_H_INCLUDED
 
+#if !defined(JSON_IS_AMALGATED)
 # include "forwards.h"
+#endif // if !defined(JSON_IS_AMALGATED)
 
 namespace Json {
 

include/json/forwards.h

@@ -6,7 +6,9 @@
 #ifndef JSON_FORWARDS_H_INCLUDED
 # define JSON_FORWARDS_H_INCLUDED
 
+#if !defined(JSON_IS_AMALGATED)
 # include "config.h"
+#endif // if !defined(JSON_IS_AMALGATED)
 
 namespace Json {
 

include/json/reader.h

@@ -6,8 +6,10 @@
 #ifndef CPPTL_JSON_READER_H_INCLUDED
 # define CPPTL_JSON_READER_H_INCLUDED
 
+#if !defined(JSON_IS_AMALGATED)
 # include "features.h"
 # include "value.h"
+#endif // if !defined(JSON_IS_AMALGATED)
 # include <deque>
 # include <stack>
 # include <string>

include/json/value.h

@@ -6,7 +6,9 @@
 #ifndef CPPTL_JSON_H_INCLUDED
 # define CPPTL_JSON_H_INCLUDED
 
+#if !defined(JSON_IS_AMALGATED)
 # include "forwards.h"
+#endif // if !defined(JSON_IS_AMALGATED)
 # include <string>
 # include <vector>
 

include/json/writer.h

@@ -6,7 +6,9 @@
 #ifndef JSON_WRITER_H_INCLUDED
 # define JSON_WRITER_H_INCLUDED
 
+#if !defined(JSON_IS_AMALGATED)
 # include "value.h"
+#endif // if !defined(JSON_IS_AMALGATED)
 # include <vector>
 # include <string>
 # include <iostream>

src/lib_json/json_internalarray.inl

@@ -4,7 +4,8 @@
 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
 
 // included by json_value.cpp
-// everything is within Json namespace
+
+namespace Json {
 
 // //////////////////////////////////////////////////////////////////
 // //////////////////////////////////////////////////////////////////
@@ -451,3 +452,5 @@ ValueInternalArray::compare( const ValueInternalArray &other ) const
    }
    return 0;
 }
+
+} // namespace Json

src/lib_json/json_internalmap.inl

@@ -4,7 +4,8 @@
 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
 
 // included by json_value.cpp
-// everything is within Json namespace
+
+namespace Json {
 
 // //////////////////////////////////////////////////////////////////
 // //////////////////////////////////////////////////////////////////
@@ -610,3 +611,5 @@ ValueInternalMap::distance( const IteratorState &x, const IteratorState &y )
       increment( it );
    return offset;
 }
+
+} // namespace Json

src/lib_json/json_reader.cpp

@@ -3,9 +3,11 @@
 // recognized in your jurisdiction.
 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
 
-#include <json/reader.h>
-#include <json/value.h>
-#include "json_tool.h"
+#if !defined(JSON_IS_AMALGATED)
+# include <json/reader.h>
+# include <json/value.h>
+# include "json_tool.h"
+#endif // if !defined(JSON_IS_AMALGATED)
 #include <utility>
 #include <cstdio>
 #include <cassert>

src/lib_json/json_value.cpp

@@ -3,9 +3,14 @@
 // recognized in your jurisdiction.
 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
 
+#if !defined(JSON_IS_AMALGATED)
+# include <json/value.h>
+# include <json/writer.h>
+# ifndef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
+#  include "json_batchallocator.h"
+# endif // #ifndef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
+#endif // if !defined(JSON_IS_AMALGATED)
 #include <iostream>
-#include <json/value.h>
-#include <json/writer.h>
 #include <utility>
 #include <stdexcept>
 #include <cstring>
@@ -14,9 +19,6 @@
 # include <cpptl/conststring.h>
 #endif
 #include <cstddef>    // size_t
-#ifndef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
-# include "json_batchallocator.h"
-#endif // #ifndef JSON_USE_SIMPLE_INTERNAL_ALLOCATOR
 
 #define JSON_ASSERT_UNREACHABLE assert( false )
 #define JSON_ASSERT( condition ) assert( condition );  // @todo <= change this into an exception throw
@@ -70,6 +72,7 @@ releaseStringValue( char *value )
       free( value );
 }
 
+} // namespace Json
 
 
 // //////////////////////////////////////////////////////////////////
@@ -79,13 +82,16 @@ releaseStringValue( char *value )
 // //////////////////////////////////////////////////////////////////
 // //////////////////////////////////////////////////////////////////
 // //////////////////////////////////////////////////////////////////
-#ifdef JSON_VALUE_USE_INTERNAL_MAP
+#if !defined(JSON_IS_AMALGATED)
+# ifdef JSON_VALUE_USE_INTERNAL_MAP
 #  include "json_internalarray.inl"
 #  include "json_internalmap.inl"
-#endif // JSON_VALUE_USE_INTERNAL_MAP
+# endif // JSON_VALUE_USE_INTERNAL_MAP
 
 # include "json_valueiterator.inl"
+#endif // if !defined(JSON_IS_AMALGATED)
 
+namespace Json {
 
 // //////////////////////////////////////////////////////////////////
 // //////////////////////////////////////////////////////////////////

src/lib_json/json_valueiterator.inl

@@ -4,8 +4,8 @@
 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
 
 // included by json_value.cpp
-// everything is within Json namespace
 
+namespace Json {
 
 // //////////////////////////////////////////////////////////////////
 // //////////////////////////////////////////////////////////////////
@@ -295,3 +295,5 @@ ValueIterator::operator =( const SelfType &other )
    copy( other );
    return *this;
 }
+
+} // namespace Json

src/lib_json/json_writer.cpp

@@ -3,8 +3,10 @@
 // recognized in your jurisdiction.
 // See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
 
-#include <json/writer.h>
-#include "json_tool.h"
+#if !defined(JSON_IS_AMALGATED)
+# include <json/writer.h>
+# include "json_tool.h"
+#endif // if !defined(JSON_IS_AMALGATED)
 #include <utility>
 #include <assert.h>
 #include <stdio.h>