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/*
 *  R : A Computer Language for Statistical Data Analysis
 *  Copyright (C) 1995, 1996  Robert Gentleman and Ross Ihaka
 *
 *  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 of the License, 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, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 *  EXPORTS printMatrix()
 *          printArray()
 *
 *  See ./printutils.c   for general remarks on Printing
 *                       and the Encode.. utils.
 *
 *  See ./format.c   for the  format_FOO_  functions used below.
 */

#include "Defn.h"
#include "Print.h"

static void printLogicalMatrix(SEXP sx, int offset, int r, int c,
                   SEXP rl, SEXP cl)
{
    SEXP sw;
    int *x, *w;
    int width, rlabw, clabw;
    int i, j, jmin, jmax;

    if (!isNull(rl))
    formatString(STRING(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;
    sw = allocVector(INTSXP, c);
    x = INTEGER(sx) + offset;
    w = INTEGER(sw);

    for (j = 0; j < c; j++) {
    formatLogical(&x[j * r], r, &w[j]);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING(cl)[j]));
    else
        clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += PRINT_GAP;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width + w[jmax] < PRINT_WIDTH);
    Rprintf("%*s", rlabw, " ");
    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%s", EncodeLogical(x[i + j * r], w[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printIntegerMatrix(SEXP sx, int offset, int r, int c,
                   SEXP rl, SEXP cl)
{
    SEXP sw;
    int *x, *w;
    int width, rlabw, clabw;
    int i, j, jmin, jmax;

    if (!isNull(rl))
    formatString(STRING(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;
    sw = allocVector(INTSXP, c);
    x = INTEGER(sx) + offset;
    w = INTEGER(sw);
    for (j = 0; j < c; j++) {
    formatInteger(&x[j * r], r, &w[j]);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING(cl)[j]));
    else
        clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += PRINT_GAP;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width + w[jmax] < PRINT_WIDTH);
    Rprintf("%*s", rlabw, " ");
    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%s", EncodeInteger(x[i + j * r], w[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printRealMatrix(SEXP sx, int offset, int r, int c,
                SEXP rl, SEXP cl)
{
    SEXP sd, se, sw;
    double *x;
    int *d, *e, *w;
    int width, rlabw, clabw;
    int i, j, jmin, jmax;

    if (!isNull(rl))
    formatString(STRING(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;
    PROTECT(sd = allocVector(INTSXP, c));
    PROTECT(se = allocVector(INTSXP, c));
    sw = allocVector(INTSXP, c);
    UNPROTECT(2);
    x = REAL(sx) + offset;
    d = INTEGER(sd);
    e = INTEGER(se);
    w = INTEGER(sw);

    for (j = 0; j < c; j++) {
    formatReal(&x[j * r], r, &w[j], &d[j], &e[j]);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING(cl)[j]));
    else
        clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += PRINT_GAP;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width + w[jmax] < PRINT_WIDTH);
    Rprintf("%*s", rlabw, " ");
    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%s", EncodeReal(x[i + j * r], w[j], d[j], e[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printComplexMatrix(SEXP sx, int offset, int r, int c,
                   SEXP rl, SEXP cl)
{
    SEXP sdr, ser, swr, sdi, sei, swi, sw;
    complex *x;
    int *dr, *er, *wr, *di, *ei, *wi, *w;
    int width, rlabw, clabw;
    int i, j, jmin, jmax;

    if (!isNull(rl))
    formatString(STRING(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;
    PROTECT(sdr = allocVector(INTSXP, c));
    PROTECT(ser = allocVector(INTSXP, c));
    PROTECT(swr = allocVector(INTSXP, c));
    PROTECT(sdi = allocVector(INTSXP, c));
    PROTECT(sei = allocVector(INTSXP, c));
    PROTECT(swi = allocVector(INTSXP, c));
    PROTECT(sw = allocVector(INTSXP, c));
    UNPROTECT(7);
    x = COMPLEX(sx) + offset;
    dr = INTEGER(sdr);
    er = INTEGER(ser);
    wr = INTEGER(swr);
    di = INTEGER(sdi);
    ei = INTEGER(sei);
    wi = INTEGER(swi);
    w = INTEGER(sw);

    /* Determine the column widths */

    for (j = 0; j < c; j++) {
    formatComplex(&x[j * r], r, &wr[j], &dr[j], &er[j],
              &wi[j], &di[j], &ei[j]);
    if (!isNull(cl))
        clabw = strlen(CHAR(STRING(cl)[j]));
    else
        clabw = IndexWidth(j + 1) + 3;
    w[j] = wr[j] + wi[j] + 2;
    if (w[j] < clabw)
        w[j] = clabw;
    w[j] += PRINT_GAP;
    }

    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax];
        jmax++;
    }
    while (jmax < c && width+w[jmax] < PRINT_WIDTH);
    Rprintf("%*s", rlabw, " ");
    for (j = jmin; j < jmax ; j++)
        MatrixColumnLabel(cl, j, w[j]);
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw);
        for (j = jmin; j < jmax; j++) {
        if (ISNA(x[i + j * r].r) || ISNA(x[i + j * r].i))
            Rprintf("%s", EncodeReal(NA_REAL, w[j], 0, 0));
        else
            Rprintf("%s", EncodeComplex(x[i + j * r],
                wr[j] + PRINT_GAP, dr[j], er[j],
                wi[j], dr[j], er[j]));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

static void printStringMatrix(SEXP sx, int offset, int r, int c,
                  int quote, int right, SEXP rl, SEXP cl)
{
    SEXP sw;
    SEXP *x;
    int *w;
    int width, rlabw, clabw;
    int i, j, jmin, jmax;

    if (!isNull(rl))
    formatString(STRING(rl), r, &rlabw, 0);
    else
    rlabw = IndexWidth(r + 1) + 3;
    sw = allocVector(INTSXP, c);
    x = STRING(sx)+offset;
    w = INTEGER(sw);
    for (j = 0; j < c; j++) {
    formatString(&x[j * r], r, &w[j], quote);
    if (!isNull(cl)) clabw = strlen(CHAR(STRING(cl)[j]));
    else clabw = IndexWidth(j + 1) + 3;
    if (w[j] < clabw)
        w[j] = clabw;
    }
    jmin = 0;
    jmax = 0;
    while (jmin < c) {
    width = rlabw;
    do {
        width += w[jmax] + PRINT_GAP;
        jmax++;
    }
    while (jmax < c && width + w[jmax] + PRINT_GAP < PRINT_WIDTH);
    Rprintf("%*s", rlabw, " ");
    if (right) {
        for (j = jmin; j < jmax ; j++)
        RightMatrixColumnLabel(cl, j, w[j]);
    }
    else {
        for (j = jmin; j < jmax ; j++)
        LeftMatrixColumnLabel(cl, j, w[j]);
    }
    for (i = 0; i < r; i++) {
        MatrixRowLabel(rl, i, rlabw);
        for (j = jmin; j < jmax; j++) {
        Rprintf("%*s%s", PRINT_GAP, "",
            EncodeString(CHAR(x[i + j * r]), w[j], quote, right));
        }
    }
    Rprintf("\n");
    jmin = jmax;
    }
}

void printMatrix(SEXP x, int offset, SEXP dim, int quote, int right,
        SEXP rl, SEXP cl)
{
    SEXP dimnames;
    int r, c;

    r = INTEGER(dim)[0];
    c = INTEGER(dim)[1];
    switch (TYPEOF(x)) {
    case LGLSXP:
    printLogicalMatrix(x, offset, r, c, rl, cl);
    break;
    case INTSXP:
    printIntegerMatrix(x, offset, r, c, rl, cl);
    break;
    case REALSXP:
    printRealMatrix(x, offset, r, c, rl, cl);
    break;
    case CPLXSXP:
    printComplexMatrix(x, offset, r, c, rl, cl);
    break;
    case STRSXP:
    if (quote) quote = '"';
    printStringMatrix(x, offset, r, c, quote, right, rl, cl);
    break;
    }
}

static void printArrayGeneral(SEXP x, SEXP dim, int quote, SEXP dimnames)
{
    SEXP ii, nn, dn;
    int i, j, k, l, b, nb, ndim;
    int nr, nc;

    ndim = LENGTH(dim);
    if (ndim == 1)
    printVector(x, 1, quote);
    else if (ndim == 2) {
    SEXP rl, cl;
    GetMatrixDimnames(x, &rl, &cl);
    printMatrix(x, 0, dim, quote, 0, rl, cl);
    }
    else {
    SEXP dn0, dn1;
    PROTECT(ii = allocVector(INTSXP, ndim));
    PROTECT(nn = allocVector(INTSXP, ndim));
    nr = INTEGER(dim)[0];
    nc = INTEGER(dim)[1];
    b = nr * nc;
    nb = 1;
    for (i = 2 ; i < ndim ; i++)
        nb *= INTEGER(dim)[i];
    if (dimnames == R_NilValue) {
        dn0 = R_NilValue;
        dn1 = R_NilValue;
    }
    else {
        dn0 = VECTOR(dimnames)[0];
        dn1 = VECTOR(dimnames)[1];
    }
    for (i = 0; i < nb; i++) {
        Rprintf(", ");
        k = 1;
        for (j = 2 ; j < ndim; j++) {
        l = (i / k) % INTEGER(dim)[j] + 1;
        dn = VECTOR(dimnames)[j];
        if (dn != R_NilValue)
            Rprintf(", %s", CHAR(STRING(dn)[l - 1]));
        else
            Rprintf(", %d", l);
        k = k * INTEGER(dim)[j];
        }
        printf("\n\n");
        switch (TYPEOF(x)) {
        case LGLSXP:
        printLogicalMatrix(x, i * b, nr, nc, dn0, dn1);
        break;
        case INTSXP:
        printIntegerMatrix(x, i * b, nr, nc, dn0, dn1);
        break;
        case REALSXP:
        printRealMatrix(x, i * b, nr, nc, dn0, dn1);
        break;
        case CPLXSXP:
        printComplexMatrix(x, i * b, nr, nc, dn0, dn1);
        break;
        case STRSXP:
        if (quote) quote = '"';
        printStringMatrix(x, i * b, nr, nc, quote, 0, dn0, dn1);
        break;
        }
        Rprintf("\n");
    }
    UNPROTECT(2);
    }
}

void printArray(SEXP x, SEXP dim, int quote, SEXP dimnames)
{
    printArrayGeneral(x, dim, quote, dimnames);
}