[Rd] Parsing code with newlines

[Duncan Murdoch]

On 04/08/2008 8:50 AM, Peter Jaeger wrote:
> Dear List,
> 
> When I try to parse code containing newline characters with R_ParseVector, I
> get a compilation error. How can I compile code that includes comments and
> newlines?
> 
> I am using the following:
> 
> void* my_compile(char *code)
> {
>     SEXP cmdSexp, cmdExpr = R_NilValue;
>     ParseStatus status;
> 
>     PROTECT (cmdSexp = allocVector (STRSXP, 1));
>     SET_STRING_ELT (cmdSexp, 0, mkChar (code));
>     PROTECT (cmdExpr = R_ParseVector (cmdSexp,-1,&status,
>         R_NilValue));
>     UNPROTECT_PTR (cmdSexp);
> 
>     if (status != PARSE_OK) {
>         return (void*)0;
>     } else {
>         return (void*)cmdExpr;
>     }
> }

You need to put together a reproducible example if you want help. 
parse() uses R_ParseVector, and it handles newlines fine.

Duncan Murdoch