Note that DSLs for C are a well-trod path, from lex and yacc to some mix-SQL-and-C tools. Also consider the number of compilers emitting C. Also, are you aware

Note that DSLs for C are a well-trod path, from lex and yacc to some mix-SQL-and-C tools. Also consider the number of compilers emitting C. Also, are you aware of http://p99.gforge.inria.fr/p99-html/ http://p99.gforge.inria.fr/p99-html/? (Neither of those are what you're asking for, but they do partially solve the problem you're trying to solve.)