The following code snippet(Though in Java) converts from CamelCase to snake_case. What should I do to do this in the C/C++ macro (i.e in the #define line)?
String regex = "([a-z])([A-Z]+)";
String replacement = "$1_$2";
System.out.println("CamelCaseToSomethingElse".replaceAll(regex, replacement).toLowerCase());
Do this sort of transform in the build process.
Write a transform program which, given an input file of string, will produce a C/C++ header file containing defines for each transform required.
So, given an input file with an entry:
TOKEN="Hello World"
Create a transform which outputs a header file containing the following:
#define R_TOKEN="Hello World" // Regular text
#define U_TOKEN="HELLO_WORLD" // Upper case token transform
#define L_TOKEN="hello_world" // Lower case token transform
#define C_TOKEN="HelloWorld" // Capital CamelCase token transform
#define K_TOKEN="helloWorld" // Lowercase CamelCase token transform
And so forth...
Add the transform to your build rules, and the resultant header becomes a dependency on your source files which require it (google makedepends).
(trivial to do in make...)
What should I do to do this in the C/C++ macro (i.e in the #define line)?
You must study C++ very well, gain enough weight in the C++ community and become a member of the C++ standardization committee. Then you can propose a sound enhancement to the C++ standard which will allow this to be implemented as a macro. However don't hope for this to happen earlier than in c++2x. Therefore, revising your requirements may be a better way of solving your problem at hand.
