C++ string template library

Question

I want simple C++ string based template library to replace strings at runtime.

For example, I will use

string template = \"My name is {{name}}\";
         


        

Answer 1

Update: The project has moved to Github and renamed into CTemplate: https://github.com/OlafvdSpek/ctemplate

From the new project page:

was originally called Google Templates, due to its origin as the template system used for Google search result pages. Now it has a more general name matching its community-owned nature.

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Have you tried Google's CTemplate library ? It seems to be exactly what you are looking for: http://code.google.com/p/google-ctemplate/

Your example would be implemented like this:

In example.tpl:

My name is {{name}}

In example.cc:

#include 
#include 
#include 
#include 

int main(int argc, char** argv)
{
  google::TemplateDictionary dict("example");
  dict.SetValue("name", "John Smith");
  google::Template* tpl = google::Template::GetTemplate("example.tpl",
                                                        google::DO_NOT_STRIP);
  std::string output;
  tpl->Expand(&output, &dict);
  std::cout << output;
  return 0;
}

Then:

$ gcc example.cc -lctemplate -pthread

$ ./a.out

My name is John Smith

Note that there is also a way to write templates as const strings if you don't want to bother writting your templates in separate files.