/* This is for all cases with a single index, including 1D arrays and
matrix indexing of arrays */
static SEXP VectorSubset(SEXP x, SEXP s, SEXP call)
{
R_xlen_t n;
int mode;
R_xlen_t stretch = 1;
SEXP indx, result, attrib, nattrib;
if (s == R_MissingArg) return duplicate(x);
PROTECT(s);
attrib = getAttrib(x, R_DimSymbol);
/* Check to see if we have special matrix subscripting. */
/* If we do, make a real subscript vector and protect it. */
if (isMatrix(s) && isArray(x) && ncols(s) == length(attrib)) {
if (isString(s)) {
s = strmat2intmat(s, GetArrayDimnames(x), call);
UNPROTECT(1);
PROTECT(s);
}
if (isInteger(s) || isReal(s)) {
s = mat2indsub(attrib, s, call);
UNPROTECT(1);
PROTECT(s);
}
}
/* Convert to a vector of integer subscripts */
/* in the range 1:length(x). */
PROTECT(indx = makeSubscript(x, s, &stretch, call));
n = XLENGTH(indx);
/* Allocate the result. */
mode = TYPEOF(x);
/* No protection needed as ExtractSubset does not allocate */
result = allocVector(mode, n);
if (mode == VECSXP || mode == EXPRSXP)
/* we do not duplicate the values when extracting the subset,
so to be conservative mark the result as NAMED = 2 */
SET_NAMED(result, 2);
PROTECT(result = ExtractSubset(x, result, indx, call));
if (result != R_NilValue) {
if (
((attrib = getAttrib(x, R_NamesSymbol)) != R_NilValue) ||
( /* here we might have an array. Use row names if 1D */
isArray(x) && LENGTH(getAttrib(x, R_DimNamesSymbol)) == 1 &&
(attrib = getAttrib(x, R_DimNamesSymbol)) != R_NilValue &&
(attrib = GetRowNames(attrib)) != R_NilValue
)
) {
PROTECT(attrib);
nattrib = allocVector(TYPEOF(attrib), n);
PROTECT(nattrib); /* seems unneeded */
nattrib = ExtractSubset(attrib, nattrib, indx, call);
setAttrib(result, R_NamesSymbol, nattrib);
UNPROTECT(2); /* attrib, nattrib */
}
if ((attrib = getAttrib(x, R_SrcrefSymbol)) != R_NilValue &&
TYPEOF(attrib) == VECSXP) {
nattrib = allocVector(VECSXP, n);
PROTECT(nattrib); /* seems unneeded */
nattrib = ExtractSubset(attrib, nattrib, indx, call);
setAttrib(result, R_SrcrefSymbol, nattrib);
UNPROTECT(1);
}
/* FIXME: this is wrong, because the slots are gone, so result is an invalid object of the S4 class! JMC 3/3/09 */
#ifdef _S4_subsettable
if(IS_S4_OBJECT(x)) { /* e.g. contains = "list" */
setAttrib(result, R_ClassSymbol, getAttrib(x, R_ClassSymbol));
SET_S4_OBJECT(result);
}
#endif
}
UNPROTECT(3);
return result;
}
static void PrintGenericVector(SEXP s, SEXP env)
{
int i, taglen, ns, w, d, e, wr, dr, er, wi, di, ei;
SEXP dims, t, names, newcall, tmp;
char pbuf[115], *ptag, save[TAGBUFLEN0];
ns = length(s);
if((dims = getAttrib(s, R_DimSymbol)) != R_NilValue && length(dims) > 1) {
// special case: array-like list
PROTECT(dims);
PROTECT(t = allocArray(STRSXP, dims));
/* FIXME: check (ns <= R_print.max +1) ? ns : R_print.max; */
for (i = 0; i < ns; i++) {
switch(TYPEOF(PROTECT(tmp = VECTOR_ELT(s, i)))) {
case NILSXP:
snprintf(pbuf, 115, "NULL");
break;
case LGLSXP:
if (LENGTH(tmp) == 1) {
const int *x = LOGICAL_RO(tmp);
formatLogical(x, 1, &w);
snprintf(pbuf, 115, "%s",
EncodeLogical(x[0], w));
} else
snprintf(pbuf, 115, "Logical,%d", LENGTH(tmp));
break;
case INTSXP:
/* factors are stored as integers */
if (inherits(tmp, "factor")) {
snprintf(pbuf, 115, "factor,%d", LENGTH(tmp));
} else {
if (LENGTH(tmp) == 1) {
const int *x = INTEGER_RO(tmp);
formatInteger(x, 1, &w);
snprintf(pbuf, 115, "%s",
EncodeInteger(x[0], w));
} else
snprintf(pbuf, 115, "Integer,%d", LENGTH(tmp));
}
break;
case REALSXP:
if (LENGTH(tmp) == 1) {
const double *x = REAL_RO(tmp);
formatReal(x, 1, &w, &d, &e, 0);
snprintf(pbuf, 115, "%s",
EncodeReal0(x[0], w, d, e, OutDec));
} else
snprintf(pbuf, 115, "Numeric,%d", LENGTH(tmp));
break;
case CPLXSXP:
if (LENGTH(tmp) == 1) {
const Rcomplex *x = COMPLEX_RO(tmp);
if (ISNA(x[0].r) || ISNA(x[0].i))
/* formatReal(NA) --> w=R_print.na_width, d=0, e=0 */
snprintf(pbuf, 115, "%s",
EncodeReal0(NA_REAL, R_print.na_width, 0, 0, OutDec));
else {
formatComplex(x, 1, &wr, &dr, &er, &wi, &di, &ei, 0);
snprintf(pbuf, 115, "%s",
EncodeComplex(x[0],
wr, dr, er, wi, di, ei, OutDec));
}
} else
snprintf(pbuf, 115, "Complex,%d", LENGTH(tmp));
break;
case STRSXP:
if (LENGTH(tmp) == 1) {
const void *vmax = vmaxget();
/* This can potentially overflow */
const char *ctmp = translateChar(STRING_ELT(tmp, 0));
int len = (int) strlen(ctmp);
if(len < 100)
snprintf(pbuf, 115, "\"%s\"", ctmp);
else {
snprintf(pbuf, 101, "\"%s\"", ctmp);
pbuf[100] = '"'; pbuf[101] = '\0';
strcat(pbuf, " [truncated]");
}
vmaxset(vmax);
} else
snprintf(pbuf, 115, "Character,%d", LENGTH(tmp));
break;
case RAWSXP:
snprintf(pbuf, 115, "Raw,%d", LENGTH(tmp));
break;
case LISTSXP:
case VECSXP:
snprintf(pbuf, 115, "List,%d", length(tmp));
break;
case LANGSXP:
snprintf(pbuf, 115, "Expression");
break;
default:
snprintf(pbuf, 115, "?");
break;
}
UNPROTECT(1); /* tmp */
pbuf[114] = '\0';
SET_STRING_ELT(t, i, mkChar(pbuf));
}
if (LENGTH(dims) == 2) {
SEXP rl, cl;
const char *rn, *cn;
GetMatrixDimnames(s, &rl, &cl, &rn, &cn);
/* as from 1.5.0: don't quote here as didn't in array case */
printMatrix(t, 0, dims, 0, R_print.right, rl, cl,
rn, cn);
}
else {
PROTECT(names = GetArrayDimnames(s));
printArray(t, dims, 0, Rprt_adj_left, names);
UNPROTECT(1);
}
UNPROTECT(2);
}
else { // no dim()
PROTECT(names = getAttrib(s, R_NamesSymbol));
taglen = (int) strlen(tagbuf);
ptag = tagbuf + taglen;
PROTECT(newcall = allocList(2));
SETCAR(newcall, install("print"));
SET_TYPEOF(newcall, LANGSXP);
if(ns > 0) {
int n_pr = (ns <= R_print.max +1) ? ns : R_print.max;
/* '...max +1' ==> will omit at least 2 ==> plural in msg below */
for (i = 0; i < n_pr; i++) {
if (i > 0) Rprintf("\n");
if (names != R_NilValue &&
STRING_ELT(names, i) != R_NilValue &&
*CHAR(STRING_ELT(names, i)) != '\0') {
const void *vmax = vmaxget();
/* Bug for L <- list(`a\\b` = 1, `a\\c` = 2) :
const char *ss = translateChar(STRING_ELT(names, i));
*/
const char *ss = EncodeChar(STRING_ELT(names, i));
#ifdef Win32
/* FIXME: double translation to native encoding, in
EncodeChar and translateChar; it is however necessary
to call isValidName() on a string without Rgui
escapes, because Rgui escapes cause a name to be
regarded invalid;
note also differences with printList
*/
const char *st = ss;
if (WinUTF8out)
st = translateChar(STRING_ELT(names, i));
#endif
if (taglen + strlen(ss) > TAGBUFLEN) {
if (taglen <= TAGBUFLEN)
sprintf(ptag, "$...");
} else {
/* we need to distinguish character NA from "NA", which
is a valid (if non-syntactic) name */
if (STRING_ELT(names, i) == NA_STRING)
sprintf(ptag, "$<NA>");
#ifdef Win32
else if( isValidName(st) )
#else
else if( isValidName(ss) )
#endif
sprintf(ptag, "$%s", ss);
else
sprintf(ptag, "$`%s`", ss);
}
vmaxset(vmax);
}
else {
if (taglen + IndexWidth(i) > TAGBUFLEN) {
if (taglen <= TAGBUFLEN)
sprintf(ptag, "$...");
} else
sprintf(ptag, "[[%d]]", i+1);
}
Rprintf("%s\n", tagbuf);
if(isObject(VECTOR_ELT(s, i))) {
SEXP x = VECTOR_ELT(s, i);
int nprot = 0;
if (TYPEOF(x) == LANGSXP) {
// quote(x) to not accidentally evaluate it with newcall() below:
x = PROTECT(lang2(R_Primitive("quote"), x)); nprot++;
}
/* need to preserve tagbuf */
strcpy(save, tagbuf);
SETCADR(newcall, x);
eval(newcall, env);
strcpy(tagbuf, save);
UNPROTECT(nprot);
}
else PrintValueRec(VECTOR_ELT(s, i), env);
*ptag = '\0';
}
Rprintf("\n");
if(n_pr < ns)
Rprintf(" [ reached getOption(\"max.print\") -- omitted %d entries ]\n",
ns - n_pr);
}
