More macros

Firmware/Configuration_adv.h

@@ -379,7 +379,7 @@ const unsigned int dropsegments=5; //everything with less than this number of st
 /**
  * Include capabilities in M115 output
  */
-// #define EXTENDED_CAPABILITIES_REPORT
+#define EXTENDED_CAPABILITIES_REPORT
 
 //===========================================================================
 //=============================  Define Defines  ============================

Firmware/macros.h

@@ -32,4 +32,59 @@
 #define TBI(N,B) (N ^= _BV(B))
 
 
+// Macros to chain up to 12 conditions
+#define _DO_1(W,C,A)       (_##W##_1(A))
+#define _DO_2(W,C,A,B)     (_##W##_1(A) C _##W##_1(B))
+#define _DO_3(W,C,A,V...)  (_##W##_1(A) C _DO_2(W,C,V))
+#define _DO_4(W,C,A,V...)  (_##W##_1(A) C _DO_3(W,C,V))
+#define _DO_5(W,C,A,V...)  (_##W##_1(A) C _DO_4(W,C,V))
+#define _DO_6(W,C,A,V...)  (_##W##_1(A) C _DO_5(W,C,V))
+#define _DO_7(W,C,A,V...)  (_##W##_1(A) C _DO_6(W,C,V))
+#define _DO_8(W,C,A,V...)  (_##W##_1(A) C _DO_7(W,C,V))
+#define _DO_9(W,C,A,V...)  (_##W##_1(A) C _DO_8(W,C,V))
+#define _DO_10(W,C,A,V...) (_##W##_1(A) C _DO_9(W,C,V))
+#define _DO_11(W,C,A,V...) (_##W##_1(A) C _DO_10(W,C,V))
+#define _DO_12(W,C,A,V...) (_##W##_1(A) C _DO_11(W,C,V))
+#define __DO_N(W,C,N,V...) _DO_##N(W,C,V)
+#define _DO_N(W,C,N,V...)  __DO_N(W,C,N,V)
+#define DO(W,C,V...)       _DO_N(W,C,NUM_ARGS(V),V)
+
+// Macros to support option testing
+#define _CAT(a,V...) a##V
+#define CAT(a,V...) _CAT(a,V)
+
+#define _ISENA_     ~,1
+#define _ISENA_1    ~,1
+#define _ISENA_0x1  ~,1
+#define _ISENA_true ~,1
+#define _ISENA(V...)        IS_PROBE(V)
+
+#define _ENA_1(O)           _ISENA(CAT(_IS,CAT(ENA_, O)))
+#define _DIS_1(O)           NOT(_ENA_1(O))
+#define ENABLED(V...)       DO(ENA,&&,V)
+#define DISABLED(V...)      DO(DIS,&&,V)
+
+#define TERN(O,A,B)         _TERN(_ENA_1(O),B,A)    // OPTION converted to '0' or '1'
+#define TERN0(O,A)          _TERN(_ENA_1(O),0,A)    // OPTION converted to A or '0'
+#define TERN1(O,A)          _TERN(_ENA_1(O),1,A)    // OPTION converted to A or '1'
+#define TERN_(O,A)          _TERN(_ENA_1(O),,A)     // OPTION converted to A or '<nul>'
+#define _TERN(E,V...)       __TERN(_CAT(T_,E),V)    // Prepend 'T_' to get 'T_0' or 'T_1'
+#define __TERN(T,V...)      ___TERN(_CAT(_NO,T),V)  // Prepend '_NO' to get '_NOT_0' or '_NOT_1'
+#define ___TERN(P,V...)     THIRD(P,V)              // If first argument has a comma, A. Else B.
+
+
+// Use NUM_ARGS(__VA_ARGS__) to get the number of variadic arguments
+#define _NUM_ARGS(_,Z,Y,X,W,V,U,T,S,R,Q,P,O,N,M,L,K,J,I,H,G,F,E,D,C,B,A,OUT,...) OUT
+#define NUM_ARGS(V...) _NUM_ARGS(0,V,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0)
+
+//
+// Primitives supporting precompiler REPEAT
+//
+#define FIRST(a,...)     a
+#define SECOND(a,b,...)  b
+#define THIRD(a,b,c,...) c
+
+#define IS_PROBE(V...) SECOND(V, 0)     // Get the second item passed, or 0
+#define NOT(x) IS_PROBE(_CAT(_NOT_, x)) // NOT('0') gets '1'. Anything else gets '0'.
+
 #endif //MACROS_H