Allow template strings to be processed on runtime from a variable
I would find it very useful if such syntax or similar:
string result = @(template_string_as_variable);
could work in Vala.
Rationale: even having template strings generated during compile time would be nice, as such strings may be glued from different parts before being interpreted. Having such feature available during runtime would allow even more flexibility. In case of my hobby app I load a template string from a resource (one of few available strings and chosen only after a Widget is realized) and feed it as a style with custom replacements depending on said Widget state. At the moment I replace strings with variables values in place in a loop.
Replacement directly via a syntax supported template string could greatly simplify content generation. I know about template-glib, but it's a top heavy solution. An intermediate dynamic solution between it and printf may turn to be useful. Specifically given it being an extension of an existing element of syntax.