Rcpp Version 0.12.12
vector_from_string.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // vector_from_string.h: Rcpp R/C++ interface class library --
4 //
5 // Copyright (C) 2010 - 2013 Dirk Eddelbuettel and Romain Francois
6 //
7 // This file is part of Rcpp.
8 //
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21 
22 #ifndef Rcpp__vector__forward_vector_from_string_h
23 #define Rcpp__vector__forward_vector_from_string_h
24 
25 namespace Rcpp{
26 namespace internal{
27 
28  template <int RTYPE>
29  inline SEXP vector_from_string( const std::string& st ) {
30  Shield<SEXP> str(Rf_mkString(st.c_str()));
31  return r_cast<RTYPE>(str) ;
32  }
33 
34  template <int RTYPE>
35  SEXP vector_from_string_expr( const std::string& code) {
36  ParseStatus status;
37  Shield<SEXP> expr( Rf_mkString( code.c_str() ) ) ;
38  Shield<SEXP> res( R_ParseVector(expr, -1, &status, R_NilValue) );
39  switch( status ){
40  case PARSE_OK:
41  return(res) ;
42  break;
43  default:
44  throw parse_error() ;
45  }
46  return R_NilValue ; /* -Wall */
47  }
48 
49  template <>
50  inline SEXP vector_from_string<EXPRSXP>( const std::string& st ) {
51  return vector_from_string_expr<EXPRSXP>( st ) ;
52  }
53 
54 }
55 }
56 
57 #endif
SEXP vector_from_string< EXPRSXP >(const std::string &st)
SEXP r_cast(SEXP x)
Definition: r_cast.h:151
SEXP vector_from_string_expr(const std::string &code)
Rcpp API.
Definition: algo.h:28
SEXP vector_from_string(const std::string &st)