add capture-syntactic-environment. close #96
add capture-syntactic-environment. close #96

dcurrie/picrin,koba-e964/picrin,koba-e964/picrin,omasanori/picrin,picrin-scheme/picrin,picrin-scheme/picrin,koba-e964/picrin,dcurrie/picrin,ktakashi/picrin,leavesbnw/picrin,ktakashi/picrin,leavesbnw/picrin,leavesbnw/picrin,omasanori/picrin,ktakashi/picrin