| /* |
| * R : A Computer Language for Statistical Data Analysis |
| * Copyright (C) 2001-2005 The R Core Team. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, a copy is available at |
| * https://www.R-project.org/Licenses/ |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| #define NO_NLS |
| #include <Defn.h> |
| |
| #include "methods.h" |
| |
| /* substitute in an _evaluated_ object, with an explicit list as |
| second arg (although old-style lists and environments are allowed). |
| |
| */ |
| |
| SEXP do_substitute_direct(SEXP f, SEXP env) |
| { |
| SEXP s; |
| if (TYPEOF(env) == VECSXP) |
| env = NewEnvironment(R_NilValue, VectorToPairList(env), R_BaseEnv); |
| else if (TYPEOF(env) == LISTSXP) |
| env = NewEnvironment(R_NilValue, duplicate(env), R_BaseEnv); |
| if(TYPEOF(env) != ENVSXP) |
| error(_("invalid list for substitution")); |
| PROTECT(env); |
| PROTECT(f); |
| s = substitute(f, env); |
| UNPROTECT(2); |
| return(s); |
| } |
| |