swh:1:snp:7d9f1bc35e120776766db9334626062f837c20ad
Tip revision: 92489f2f770ea51a89a8c0e9cae37789d39b9c49 authored by Duncan Temple Lang on 19 May 2005, 00:00:00 UTC
version 0.97-6
version 0.97-6
Tip revision: 92489f2
RUtils.c
#include "RUtils.h"
/*
Utilities used in the R XML parsing facilities for invoking user-level functions from C.
* See Copyright for the license status of this software.
*/
#include "Rinternals.h" /* Macros, etc. */
USER_OBJECT_ R_InternalRecursiveApply(USER_OBJECT_ top, USER_OBJECT_ func, USER_OBJECT_ klasses);
USER_OBJECT_
RS_XML(invokeFunction)(USER_OBJECT_ fun, USER_OBJECT_ opArgs, USER_OBJECT_ data)
{
int i;
long n;
USER_OBJECT_ c, call;
USER_OBJECT_ ans;
n = GET_LENGTH(opArgs);
if(data)
n++;
if(n > 0) {
PROTECT(c = call = allocList(n));
for (i = 0; i < GET_LENGTH(opArgs); i++) {
SETCAR(c, VECTOR_ELT(opArgs, i));
c = CDR(c);
}
if(data) {
SETCAR(c, data);
SET_TAG(c, Rf_install(".state"));
}
call = LCONS(fun, call);
UNPROTECT(1);
} else {
call = allocVector(LANGSXP,1);
SETCAR(call, fun);
}
PROTECT(call);
ans = eval(call, R_GlobalEnv);
UNPROTECT(1);
return(ans);
}
USER_OBJECT_
RS_XML(RecursiveApply)(USER_OBJECT_ top, USER_OBJECT_ func, USER_OBJECT_ klasses)
{
USER_OBJECT_ ans;
PROTECT(top = duplicate(top));
ans = R_InternalRecursiveApply(top, func, klasses);
UNPROTECT(1);
return(ans);
}
USER_OBJECT_
R_InternalRecursiveApply(USER_OBJECT_ top, USER_OBJECT_ func, USER_OBJECT_ klasses)
{
int CHILD_NODE = 2, i;
USER_OBJECT_ kids;
int numChildren;
USER_OBJECT_ args, tmp;
if(GET_LENGTH(top) > CHILD_NODE) {
kids = VECTOR_ELT(top, CHILD_NODE);
numChildren = GET_LENGTH(kids);
/* Do the children first. */
PROTECT(args = NEW_LIST(1));
PROTECT(tmp = NEW_LIST(numChildren));
for(i = 0; i < numChildren; i++) {
SET_VECTOR_ELT(tmp, i, R_InternalRecursiveApply(VECTOR_ELT(kids, i), func, klasses));
}
SET_VECTOR_ELT(top, CHILD_NODE, tmp);
UNPROTECT(2);
}
PROTECT(args = NEW_LIST(1));
SET_VECTOR_ELT(args, 0, top);
tmp = RS_XML(invokeFunction)(func, args, NULL);
UNPROTECT(1);
return(tmp);
}
#include <R_ext/Rdynload.h>
/* Simple macro for expanding ENTRY(x, n) to {"<x>", (DL_FUNC) &<x>, <n>} */
#define ENTRY(name, n) { #name, (DL_FUNC) &name, n }
static R_CallMethodDef callMethods[] = {
ENTRY(RS_XML_RecursiveApply, 3),
ENTRY(RS_XML_HtmlParseTree, 7),
ENTRY(RS_XML_getDTD, 4),
ENTRY(RS_XML_libxmlVersion, 0),
ENTRY(RS_XML_Parse, 10),
ENTRY(RS_XML_ParseTree, 12),
ENTRY(R_newXMLDtd, 4),
ENTRY(R_newXMLDoc, 2),
ENTRY(R_newXMLNode, 4),
ENTRY(R_newXMLTextNode, 1),
ENTRY(R_xmlNewComment, 1),
ENTRY(R_newXMLCDataNode, 2),
ENTRY(R_newXMLPINode, 3),
ENTRY(R_xmlNewNs, 3),
ENTRY(R_xmlSetNs, 2),
ENTRY(R_insertXMLNode, 2),
ENTRY(R_saveXMLDOM, 5),
{NULL, NULL, 0}
};
static R_CMethodDef cmethods[] = {
ENTRY(RSXML_setErrorHandlers, 0),
{NULL, NULL, 0}
};
void
R_init_XML(DllInfo *dll)
{
R_useDynamicSymbols(dll, FALSE);
R_registerRoutines(dll, cmethods, callMethods, NULL, NULL);
}