string to term:
ErlTerms = "{a,b,c,d}.".
{ok,Tokens,_} = erl_scan:string(ErlTerms).
{ok,Term} = erl_parse:parse_term(Tokens).
Term -> {a,b,c,d}.
string to expression (and eval):
StrTerm = "fun() -> result_atom end.".
{ok,Tokens,_} = erl_scan:string(StrTerm).
{ok,[Expr]} = erl_parse:parse_exprs(Tokens).
erl_eval:expr(Expr,[]).
resulted in: {value,#Fun,[]}
refs:
https://github.com/skruger/Surrogate/issues/3
http://stackoverflow.com/questions/1974236/string-to-abstract-syntax-tree
http://stackoverflow.com/questions/2008777/convert-a-string-into-a-fun
happy hackin'