1 files changed, 117 insertions, 0 deletions
diff --git a/boost/vmd/is_identifier.hpp b/boost/vmd/is_identifier.hpp
new file mode 100644
index 0000000000..b41b1b4eed
--- /dev/null
+++ b/boost/vmd/is_identifier.hpp
@@ -0,0 +1,117 @@
+
+//  (C) Copyright Edward Diener 2011-2015
+//  Use, modification and distribution are subject to the Boost Software License,
+//  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt).
+
+#if !defined(BOOST_VMD_IS_IDENTIFIER_HPP)
+#define BOOST_VMD_IS_IDENTIFIER_HPP
+
+#include <boost/vmd/detail/setup.hpp>
+
+#if BOOST_PP_VARIADICS
+
+#include <boost/vmd/detail/is_identifier.hpp>
+
+/*
+
+  The succeeding comments in this file are in doxygen format.
+
+*/
+
+/** \file
+*/
+
+/** \def BOOST_VMD_IS_IDENTIFIER(...)
+
+    \brief Tests whether a parameter is an identifier.
+
+    ...       = variadic parameters
+    
+    The first variadic parameter is required and it is the input to test.
+    
+    Further variadic parameters are optional and are identifiers to match.
+    The data may take one of two forms; it is either one or more single identifiers
+    or a single Boost PP tuple of identifiers.
+
+    returns   = 1 if the parameter is an identifier, otherwise 0.
+                
+                If the parameter is not an identifier, 
+                or if optional identifiers are specified and the identifier
+                does not match any of the optional identifiers, the macro returns 0.
+                
+    Identifiers are registered in VMD with:
+    
+        #define BOOST_VMD_REG_XXX (XXX) where XXX is a v-identifier.
+    
+    The identifier must be registered to be found.
+    
+    Identifiers are pre-detected in VMD with:
+    
+        #define BOOST_VMD_DETECT_XXX_XXX where XXX is an identifier.
+    
+    If you specify optional identifiers and have not specified the detection
+    of an optional identifier, that optional identifier will never match the input.
+                
+    If the input is not a VMD data type this macro could lead to
+    a preprocessor error. This is because the macro
+    uses preprocessor concatenation to determine if the input
+    is an identifier once it is determined that the input does not
+    start with parenthesis. If the data being concatenated would
+    lead to an invalid preprocessor token the compiler can issue
+    a preprocessor error.
+    
+*/
+
+#define BOOST_VMD_IS_IDENTIFIER(...) \
+    BOOST_VMD_DETAIL_IS_IDENTIFIER(__VA_ARGS__) \
+/**/
+
+/** \def BOOST_VMD_IS_IDENTIFIER_D(d,...)
+
+    \brief Tests whether a parameter is an identifier. Re-entrant version.
+
+    d         = The next available BOOST_PP_WHILE iteration. 
+    ...       = variadic parameters
+    
+    The first variadic parameter is required and it is the input to test.
+    
+    Further variadic parameters are optional and are identifiers to match.
+    The data may take one of two forms; it is either one or more single identifiers
+    or a single Boost PP tuple of identifiers.
+
+    returns   = 1 if the parameter is an identifier, otherwise 0.
+                
+                If the parameter is not an identifier, 
+                or if optional identifiers are specified and the identifier
+                does not match any of the optional identifiers, the macro returns 0.
+                
+    Identifiers are registered in VMD with:
+    
+        #define BOOST_VMD_REG_XXX (XXX) where XXX is a v-identifier.
+    
+    The identifier must be registered to be found.
+    
+    Identifiers are pre-detected in VMD with:
+    
+        #define BOOST_VMD_DETECT_XXX_XXX where XXX is an identifier.
+    
+    If you specify optional identifiers and have not specified the detection
+    of an optional identifier, that optional identifier will never match the input.
+                
+    If the input is not a VMD data type this macro could lead to
+    a preprocessor error. This is because the macro
+    uses preprocessor concatenation to determine if the input
+    is an identifier once it is determined that the input does not
+    start with parenthesis. If the data being concatenated would
+    lead to an invalid preprocessor token the compiler can issue
+    a preprocessor error.
+    
+*/
+
+#define BOOST_VMD_IS_IDENTIFIER_D(d,...) \
+    BOOST_VMD_DETAIL_IS_IDENTIFIER_D(d,__VA_ARGS__) \
+/**/
+
+#endif /* BOOST_PP_VARIADICS */
+#endif /* BOOST_VMD_IS_IDENTIFIER_HPP */