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pr-output.cc
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C/C++ Source or Header
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1996-09-28
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1,459 lines
// pr-output.cc -*- C++ -*-
/*
Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton
This file is part of Octave.
Octave 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, or (at your option) any
later version.
Octave 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 Octave; see the file COPYING. If not, write to the Free
Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <iostream.h>
#include <strstream.h>
#include <string.h>
#include <math.h>
#include <float.h>
#include <Complex.h>
#include "dMatrix.h"
#include "CMatrix.h"
#include "Range.h"
#include "tree-const.h"
#include "variables.h"
#include "user-prefs.h"
#include "pr-output.h"
#include "mappers.h"
#include "pager.h"
#include "help.h"
#include "error.h"
#include "utils.h"
#include "defun.h"
// Current format string for real numbers and the real part of complex
// numbers.
static char *curr_real_fmt = 0;
// Current format string for the imaginary part of complex numbers.
static char *curr_imag_fmt = 0;
// Nonzero means don\'t do any fancy formatting.
static int free_format = 0;
// Nonzero means print plus sign for nonzero, blank for zero.
static int plus_format = 0;
// Nonzero means always print like dollars and cents.
static int bank_format = 0;
// Nonzero means use an e format.
static int print_e = 0;
// Nonzero means print E instead of e for exponent field.
static int print_big_e = 0;
static int
any_element_is_negative (const Matrix& a)
{
int nr = a.rows ();
int nc = a.columns ();
for (int j = 0; j < nc; j++)
for (int i = 0; i < nr; i++)
if (a.elem (i, j) < 0.0)
return 1;
return 0;
}
static int
any_element_is_inf_or_nan (const Matrix& a)
{
int nr = a.rows ();
int nc = a.columns ();
for (int j = 0; j < nc; j++)
for (int i = 0; i < nr; i++)
{
double val = a.elem (i, j);
if (xisinf (val) || xisnan (val))
return 1;
}
return 0;
}
static int
any_element_is_inf_or_nan (const ComplexMatrix& a)
{
int nr = a.rows ();
int nc = a.columns ();
for (int j = 0; j < nc; j++)
for (int i = 0; i < nr; i++)
{
Complex val = a.elem (i, j);
if (xisinf (val) || xisnan (val))
return 1;
}
return 0;
}
static int
all_elements_are_int_or_inf_or_nan (const Matrix& a)
{
int nr = a.rows ();
int nc = a.columns ();
for (int j = 0; j < nc; j++)
for (int i = 0; i < nr; i++)
{
double val = a.elem (i, j);
if (xisnan (val) || D_NINT (val) == val)
continue;
else
return 0;
}
return 1;
}
static Matrix
abs (const Matrix& a)
{
int nr = a.rows ();
int nc = a.columns ();
Matrix retval (nr, nc);
for (int j = 0; j < nc; j++)
for (int i = 0; i < nr; i++)
retval.elem (i, j) = fabs (a.elem (i, j));
return retval;
}
static double
pr_max_internal (const Matrix& m)
{
int nr = m.rows ();
int nc = m.columns ();
double result = DBL_MIN;
for (int j = 0; j < nc; j++)
for (int i = 0; i < nr; i++)
{
double val = m.elem (i, j);
if (xisinf (val) || xisnan (val))
continue;
if (val > result)
result = val;
}
return result;
}
static double
pr_min_internal (const Matrix& m)
{
int nr = m.rows ();
int nc = m.columns ();
double result = DBL_MAX;
for (int j = 0; j < nc; j++)
for (int i = 0; i < nr; i++)
{
double val = m.elem (i, j);
if (xisinf (val) || xisnan (val))
continue;
if (val < result)
result = val;
}
return result;
}
static void
set_format (double d, int& fw)
{
curr_real_fmt = 0;
curr_imag_fmt = 0;
if (free_format)
return;
static char fmt_buf[128];
int sign = (d < 0.0);
int inf_or_nan = (xisinf (d) || xisnan (d));
double d_abs = d < 0.0 ? -d : d;
int digits = (inf_or_nan || d_abs == 0.0) ? 0
: (int) floor (log10 (d_abs) + 1.0);
int prec = user_pref.output_precision;
int ld, rd;
if (bank_format)
{
fw = digits < 0 ? 4 : digits + 3;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
rd = 2;
}
else if (xisnan (d) || D_NINT (d) == d)
{
fw = digits;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
rd = 0;
}
else
{
if (digits > 0)
{
ld = digits;
rd = prec - digits;
digits++;
}
else
{
ld = 1;
rd = prec - digits;
digits = -digits + 1;
}
fw = ld + 1 + rd;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
}
if (! bank_format && (fw > user_pref.output_max_field_width || print_e))
{
int exp_field = 4;
if (digits > 100)
exp_field++;
fw = 2 + prec + exp_field;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
if (print_big_e)
sprintf (fmt_buf, "%%%d.%dE", fw, prec - 1);
else
sprintf (fmt_buf, "%%%d.%de", fw, prec - 1);
}
else
{
sprintf (fmt_buf, "%%%d.%df", fw, rd);
}
curr_real_fmt = &fmt_buf[0];
}
static inline void
set_format (double d)
{
int fw;
set_format (d, fw);
}
static void
set_format (const Matrix& m, int& fw)
{
curr_real_fmt = 0;
curr_imag_fmt = 0;
if (free_format)
return;
static char fmt_buf[128];
int sign = any_element_is_negative (m);
int inf_or_nan = any_element_is_inf_or_nan (m);
Matrix m_abs = abs (m);
double max_abs = pr_max_internal (m_abs);
double min_abs = pr_min_internal (m_abs);
int x_max = max_abs == 0.0 ? 0 : (int) floor (log10 (max_abs) + 1.0);
int x_min = min_abs == 0.0 ? 0 : (int) floor (log10 (min_abs) + 1.0);
int prec = user_pref.output_precision;
int ld, rd;
if (bank_format)
{
int digits = x_max > x_min ? x_max : x_min;
fw = digits <= 0 ? 4 : digits + 3;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
rd = 2;
}
else if (all_elements_are_int_or_inf_or_nan (m))
{
int digits = x_max > x_min ? x_max : x_min;
fw = digits <= 0 ? 1 : digits;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
rd = 0;
}
else
{
int ld_max, rd_max;
if (x_max > 0)
{
ld_max = x_max;
rd_max = prec - x_max;
x_max++;
}
else
{
ld_max = 1;
rd_max = prec - x_max;
x_max = -x_max + 1;
}
int ld_min, rd_min;
if (x_min > 0)
{
ld_min = x_min;
rd_min = prec - x_min;
x_min++;
}
else
{
ld_min = 1;
rd_min = prec - x_min;
x_min = -x_min + 1;
}
ld = ld_max > ld_min ? ld_max : ld_min;
rd = rd_max > rd_min ? rd_max : rd_min;
fw = ld + 1 + rd;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
}
if (! bank_format && (fw > user_pref.output_max_field_width || print_e))
{
int exp_field = 4;
if (x_max > 100 || x_min > 100)
exp_field++;
fw = 2 + prec + exp_field;
if (inf_or_nan && fw < 3)
fw = 3;
fw += sign;
if (print_big_e)
sprintf (fmt_buf, "%%%d.%dE", fw, prec - 1);
else
sprintf (fmt_buf, "%%%d.%de", fw, prec - 1);
}
else
{
sprintf (fmt_buf, "%%%d.%df", fw, rd);
}
curr_real_fmt = &fmt_buf[0];
}
static inline void
set_format (const Matrix& m)
{
int fw;
set_format (m, fw);
}
static void
set_format (const Complex& c, int& r_fw, int& i_fw)
{
curr_real_fmt = 0;
curr_imag_fmt = 0;
if (free_format)
return;
static char r_fmt_buf[128];
static char i_fmt_buf[128];
double rp = c.real ();
double ip = c.imag ();
int sign = (rp < 0.0);
int inf_or_nan = (xisinf (c) || xisnan (c));
double r_abs = rp < 0.0 ? -rp : rp;
double i_abs = ip < 0.0 ? -ip : ip;
int r_x = r_abs == 0.0 ? 0 : (int) floor (log10 (r_abs) + 1.0);
int i_x = i_abs == 0.0 ? 0 : (int) floor (log10 (i_abs) + 1.0);
int x_max, x_min;
if (r_x > i_x)
{
x_max = r_x;
x_min = i_x;
}
else
{
x_max = i_x;
x_min = r_x;
}
int prec = user_pref.output_precision;
int ld, rd;
if (bank_format)
{
int digits = r_x;
i_fw = 0;
r_fw = digits <= 0 ? 4 : digits + 3;
if (inf_or_nan && r_fw < 3)
r_fw = 3;
r_fw += sign;
rd = 2;
}
else if (inf_or_nan || (D_NINT (rp) == rp && D_NINT (ip) == ip))
{
int digits = x_max > x_min ? x_max : x_min;
i_fw = r_fw = digits <= 0 ? 1 : digits;
if (inf_or_nan && i_fw < 3)
i_fw = r_fw = 3;
r_fw += sign;
rd = 0;
}
else
{
int ld_max, rd_max;
if (x_max > 0)
{
ld_max = x_max;
rd_max = prec - x_max;
x_max++;
}
else
{
ld_max = 1;
rd_max = prec - x_max;
x_max = -x_max + 1;
}
int ld_min, rd_min;
if (x_min > 0)
{
ld_min = x_min;
rd_min = prec - x_min;
x_min++;
}
else
{
ld_min = 1;
rd_min = prec - x_min;
x_min = -x_min + 1;
}
ld = ld_max > ld_min ? ld_max : ld_min;
rd = rd_max > rd_min ? rd_max : rd_min;
i_fw = r_fw = ld + 1 + rd;
if (inf_or_nan && i_fw < 3)
i_fw = r_fw = 3;
r_fw += sign;
}
if (! bank_format && (r_fw > user_pref.output_max_field_width || print_e))
{
int exp_field = 4;
if (x_max > 100 || x_min > 100)
exp_field++;
i_fw = r_fw = 1 + prec + exp_field;
if (inf_or_nan && i_fw < 3)
i_fw = r_fw = 3;
r_fw += sign;
if (print_big_e)
{
sprintf (r_fmt_buf, "%%%d.%dE", r_fw, prec - 1);
sprintf (i_fmt_buf, "%%%d.%dE", i_fw, prec - 1);
}
else
{
sprintf (r_fmt_buf, "%%%d.%de", r_fw, prec - 1);
sprintf (i_fmt_buf, "%%%d.%de", i_fw, prec - 1);
}
}
else
{
sprintf (r_fmt_buf, "%%%d.%df", r_fw, rd);
sprintf (i_fmt_buf, "%%%d.%df", i_fw, rd);
}
curr_real_fmt = &r_fmt_buf[0];
curr_imag_fmt = &i_fmt_buf[0];
}
static inline void
set_format (const Complex& c)
{
int r_fw, i_fw;
set_format (c, r_fw, i_fw);
}
static void
set_format (const ComplexMatrix& cm, int& r_fw, int& i_fw)
{
curr_real_fmt = 0;
curr_imag_fmt = 0;
if (free_format)
return;
static char r_fmt_buf[128];
static char i_fmt_buf[128];
Matrix rp = real (cm);
Matrix ip = imag (cm);
int sign = any_element_is_negative (rp);
int inf_or_nan = any_element_is_inf_or_nan (cm);
Matrix r_m_abs = abs (rp);
double r_max_abs = pr_max_internal (r_m_abs);
double r_min_abs = pr_min_internal (r_m_abs);
Matrix i_m_abs = abs (ip);
double i_max_abs = pr_max_internal (i_m_abs);
double i_min_abs = pr_min_internal (i_m_abs);
int r_x_max = r_max_abs == 0.0 ? 0 : (int) floor (log10 (r_max_abs) + 1.0);
int r_x_min = r_min_abs == 0.0 ? 0 : (int) floor (log10 (r_min_abs) + 1.0);
int i_x_max = i_max_abs == 0.0 ? 0 : (int) floor (log10 (i_max_abs) + 1.0);
int i_x_min = i_min_abs == 0.0 ? 0 : (int) floor (log10 (i_min_abs) + 1.0);
int x_max = r_x_max > i_x_max ? r_x_max : i_x_max;
int x_min = r_x_min > i_x_min ? r_x_min : i_x_min;
int prec = user_pref.output_precision;
int ld, rd;
if (bank_format)
{
int digits = r_x_max > r_x_min ? r_x_max : r_x_min;
i_fw = 0;
r_fw = digits <= 0 ? 4 : digits + 3;
if (inf_or_nan && i_fw < 3)
i_fw = r_fw = 3;
r_fw += sign;
rd = 2;
}
else if (all_elements_are_int_or_inf_or_nan (rp)
&& all_elements_are_int_or_inf_or_nan (ip))
{
int digits = x_max > x_min ? x_max : x_min;
i_fw = r_fw = digits <= 0 ? 1 : digits;
if (inf_or_nan && i_fw < 3)
i_fw = r_fw = 3;
r_fw += sign;
rd = 0;
}
else
{
int ld_max, rd_max;
if (x_max > 0)
{
ld_max = x_max;
rd_max = prec - x_max;
x_max++;
}
else
{
ld_max = 1;
rd_max = prec - x_max;
x_max = -x_max + 1;
}
int ld_min, rd_min;
if (x_min > 0)
{
ld_min = x_min;
rd_min = prec - x_min;
x_min++;
}
else
{
ld_min = 1;
rd_min = prec - x_min;
x_min = -x_min + 1;
}
ld = ld_max > ld_min ? ld_max : ld_min;
rd = rd_max > rd_min ? rd_max : rd_min;
i_fw = r_fw = ld + 1 + rd;
if (inf_or_nan && i_fw < 3)
i_fw = r_fw = 3;
r_fw += sign;
}
if (! bank_format && (r_fw > user_pref.output_max_field_width || print_e))
{
int exp_field = 4;
if (x_max > 100 || x_min > 100)
exp_field++;
i_fw = r_fw = 1 + prec + exp_field;
if (inf_or_nan && i_fw < 3)
i_fw = r_fw = 3;
r_fw += sign;
if (print_big_e)
{
sprintf (r_fmt_buf, "%%%d.%dE", r_fw, prec - 1);
sprintf (i_fmt_buf, "%%%d.%dE", i_fw, prec - 1);
}
else
{
sprintf (r_fmt_buf, "%%%d.%de", r_fw, prec - 1);
sprintf (i_fmt_buf, "%%%d.%de", i_fw, prec - 1);
}
}
else
{
sprintf (r_fmt_buf, "%%%d.%df", r_fw, rd);
sprintf (i_fmt_buf, "%%%d.%df", i_fw, rd);
}
curr_real_fmt = &r_fmt_buf[0];
curr_imag_fmt = &i_fmt_buf[0];
}
static int
all_elements_are_ints (const Range& r)
{
// If the base and increment are ints, the final value in the range
// will also be an integer, even if the limit is not.
double b = r.base ();
double i = r.inc ();
return (! (xisnan (b) || xisnan (i))
&& (double) NINT (b) == b && (double) NINT (i) == i);
}
static inline void
set_format (const ComplexMatrix& cm)
{
int r_fw, i_fw;
set_format (cm, r_fw, i_fw);
}
static void
set_format (const Range& r, int& fw)
{
curr_real_fmt = 0;
curr_imag_fmt = 0;
if (free_format)
return;
static char fmt_buf[128];
double r_min = r.base ();
double r_max = r.limit ();
if (r_max < r_min)
{
double tmp = r_max;
r_max = r_min;
r_min = tmp;
}
int sign = (r_min < 0.0);
double max_abs = r_max < 0.0 ? -r_max : r_max;
double min_abs = r_min < 0.0 ? -r_min : r_min;
int x_max = max_abs == 0.0 ? 0 : (int) floor (log10 (max_abs) + 1.0);
int x_min = min_abs == 0.0 ? 0 : (int) floor (log10 (min_abs) + 1.0);
int prec = user_pref.output_precision;
int ld, rd;
if (bank_format)
{
int digits = x_max > x_min ? x_max : x_min;
fw = sign + digits < 0 ? 4 : digits + 3;
rd = 2;
}
else if (all_elements_are_ints (r))
{
int digits = x_max > x_min ? x_max : x_min;
fw = sign + digits;
rd = 0;
}
else
{
int ld_max, rd_max;
if (x_max > 0)
{
ld_max = x_max;
rd_max = prec - x_max;
x_max++;
}
else
{
ld_max = 1;
rd_max = prec - x_max;
x_max = -x_max + 1;
}
int ld_min, rd_min;
if (x_min > 0)
{
ld_min = x_min;
rd_min = prec - x_min;
x_min++;
}
else
{
ld_min = 1;
rd_min = prec - x_min;
x_min = -x_min + 1;
}
ld = ld_max > ld_min ? ld_max : ld_min;
rd = rd_max > rd_min ? rd_max : rd_min;
fw = sign + ld + 1 + rd;
}
if (! bank_format && (fw > user_pref.output_max_field_width || print_e))
{
int exp_field = 4;
if (x_max > 100 || x_min > 100)
exp_field++;
fw = sign + 2 + prec + exp_field;
if (print_big_e)
sprintf (fmt_buf, "%%%d.%dE", fw, prec - 1);
else
sprintf (fmt_buf, "%%%d.%de", fw, prec - 1);
}
else
{
sprintf (fmt_buf, "%%%d.%df", fw, rd);
}
curr_real_fmt = &fmt_buf[0];
}
static inline void
set_format (const Range& r)
{
int fw;
set_format (r, fw);
}
static inline void
pr_any_float (const char *fmt, ostream& os, double d, int fw = 0)
{
if (d == -0.0)
d = 0.0;
if (fmt)
{
if (xisinf (d))
{
char *s;
if (d < 0.0)
s = "-Inf";
else
s = "Inf";
if (fw > 0)
os.form ("%*s", fw, s);
else
os << s;
}
else if (xisnan (d))
{
if (fw > 0)
os.form ("%*s", fw, "NaN");
else
os << "NaN";
}
else
os.form (fmt, d);
}
else
os << d;
}
static inline void
pr_float (ostream& os, double d, int fw = 0)
{
pr_any_float (curr_real_fmt, os, d, fw);
}
static inline void
pr_imag_float (ostream& os, double d, int fw = 0)
{
pr_any_float (curr_imag_fmt, os, d, fw);
}
static inline void
pr_complex (ostream& os, const Complex& c, int r_fw = 0, int i_fw = 0)
{
double r = c.real ();
pr_float (os, r, r_fw);
if (! bank_format)
{
double i = c.imag ();
if (i < 0)
{
os << " - ";
i = -i;
pr_imag_float (os, i, i_fw);
}
else
{
os << " + ";
pr_imag_float (os, i, i_fw);
}
os << "i";
}
}
static void
print_empty_matrix (ostream& os, int nr, int nc, int pr_as_read_syntax)
{
assert (nr == 0 || nc == 0);
if (pr_as_read_syntax)
{
if (nr == 0 && nc == 0)
os << "[]";
else
os << "zeros (" << nr << ", " << nc << ")";
}
else
{
os << "[]";
if (user_pref.print_empty_dimensions)
os << "(" << nr << "x" << nc << ")";
os << "\n";
}
}
void
octave_print_internal (ostream& os, double d, int pr_as_read_syntax)
{
if (plus_format)
{
if (d == 0.0)
os << " ";
else
os << "+";
}
else
{
set_format (d);
if (free_format)
os << d;
else
pr_float (os, d);
}
if (! pr_as_read_syntax)
os << "\n";
}
void
octave_print_internal (ostream& os, const Matrix& m, int pr_as_read_syntax)
{
int nr = m.rows ();
int nc = m.columns ();
if (nr == 0 || nc == 0)
print_empty_matrix (os, nr, nc, pr_as_read_syntax);
else if (plus_format && ! pr_as_read_syntax)
{
for (int i = 0; i < nr; i++)
{
for (int j = 0; j < nc; j++)
{
if (j == 0)
os << " ";
if (m.elem (i, j) == 0.0)
os << " ";
else
os << "+";
}
os << "\n";
}
}
else
{
int fw;
set_format (m, fw);
int column_width = fw + 2;
int total_width = nc * column_width;
int max_width = terminal_columns ();
if (pr_as_read_syntax)
max_width -= 4;
if (free_format)
{
if (pr_as_read_syntax)
os << "[\n";
os << m;
if (pr_as_read_syntax)
os << "]";
return;
}
int inc = nc;
if (total_width > max_width && user_pref.split_long_rows)
{
inc = max_width / column_width;
if (inc == 0)
inc++;
}
if (pr_as_read_syntax)
{
for (int i = 0; i < nr; i++)
{
int col = 0;
while (col < nc)
{
int lim = col + inc < nc ? col + inc : nc;
for (int j = col; j < lim; j++)
{
if (i == 0 && j == 0)
os << "[ ";
else
{
if (j > col && j < lim)
os << ", ";
else
os << " ";
}
pr_float (os, m.elem (i, j));
}
col += inc;
if (col >= nc)
{
if (i == nr - 1)
os << " ]";
else
os << ";\n";
}
else
os << " ...\n";
}
}
}
else
{
for (int col = 0; col < nc; col += inc)
{
int lim = col + inc < nc ? col + inc : nc;
if (total_width > max_width && user_pref.split_long_rows)
{
if (col != 0)
os << "\n";
int num_cols = lim - col;
if (num_cols == 1)
os << " Column " << col + 1 << ":\n\n";
else if (num_cols == 2)
os << " Columns " << col + 1 << " and " << lim
<< ":\n\n";
else
os << " Columns " << col + 1 << " through " << lim
<< ":\n\n";
}
for (int i = 0; i < nr; i++)
{
for (int j = col; j < lim; j++)
{
os << " ";
pr_float (os, m.elem (i, j), fw);
}
os << "\n";
}
}
}
}
}
void
octave_print_internal (ostream& os, const Complex& c,
int pr_as_read_syntax)
{
if (plus_format)
{
if (c == 0.0)
os << " ";
else
os << "+";
}
else
{
set_format (c);
if (free_format)
os << c;
else
pr_complex (os, c);
}
if (! pr_as_read_syntax)
os << "\n";
}
void
octave_print_internal (ostream& os, const ComplexMatrix& cm,
int pr_as_read_syntax)
{
int nr = cm.rows ();
int nc = cm.columns ();
if (nr == 0 || nc == 0)
print_empty_matrix (os, nr, nc, pr_as_read_syntax);
else if (plus_format && ! pr_as_read_syntax)
{
for (int i = 0; i < nr; i++)
{
for (int j = 0; j < nc; j++)
{
if (j == 0)
os << " ";
if (cm.elem (i, j) == 0.0)
os << " ";
else
os << "+";
}
os << "\n";
}
}
else
{
int r_fw, i_fw;
set_format (cm, r_fw, i_fw);
int column_width = i_fw + r_fw;
column_width += bank_format ? 2 : 7;
int total_width = nc * column_width;
int max_width = terminal_columns ();
if (pr_as_read_syntax)
max_width -= 4;
if (free_format)
{
if (pr_as_read_syntax)
os << "[\n";
os << cm;
if (pr_as_read_syntax)
os << "]";
return;
}
int inc = nc;
if (total_width > max_width && user_pref.split_long_rows)
{
inc = max_width / column_width;
if (inc == 0)
inc++;
}
if (pr_as_read_syntax)
{
for (int i = 0; i < nr; i++)
{
int col = 0;
while (col < nc)
{
int lim = col + inc < nc ? col + inc : nc;
for (int j = col; j < lim; j++)
{
if (i == 0 && j == 0)
os << "[ ";
else
{
if (j > col && j < lim)
os << ", ";
else
os << " ";
}
pr_complex (os, cm.elem (i, j));
}
col += inc;
if (col >= nc)
{
if (i == nr - 1)
os << " ]";
else
os << ";\n";
}
else
os << " ...\n";
}
}
}
else
{
for (int col = 0; col < nc; col += inc)
{
int lim = col + inc < nc ? col + inc : nc;
if (total_width > max_width && user_pref.split_long_rows)
{
if (col != 0)
os << "\n";
int num_cols = lim - col;
if (num_cols == 1)
os << " Column " << col + 1 << ":\n\n";
else if (num_cols == 2)
os << " Columns " << col + 1 << " and " << lim
<< ":\n\n";
else
os << " Columns " << col + 1 << " through " << lim
<< ":\n\n";
}
for (int i = 0; i < nr; i++)
{
for (int j = col; j < lim; j++)
{
os << " ";
pr_complex (os, cm.elem (i, j));
}
os << "\n";
}
}
}
}
}
void
octave_print_internal (ostream& os, const Range& r,
int pr_as_read_syntax)
{
double base = r.base ();
double increment = r.inc ();
double limit = r.limit ();
int num_elem = r.nelem ();
if (plus_format && ! pr_as_read_syntax)
{
os << " ";
for (int i = 0; i < num_elem; i++)
{
double val = base + i * increment;
if (val == 0.0)
os << " ";
else
os << "+";
}
}
else
{
int fw;
set_format (r, fw);
if (pr_as_read_syntax)
{
if (free_format)
{
os << base << " : ";
if (increment != 1.0)
os << increment << " : ";
os << limit;
}
else
{
pr_float (os, base, fw);
os << " : ";
if (increment != 1.0)
{
pr_float (os, increment, fw);
os << " : ";
}
pr_float (os, limit, fw);
}
}
else
{
int column_width = fw + 2;
int total_width = num_elem * column_width;
int max_width = terminal_columns ();
if (free_format)
{
os << r;
return;
}
int inc = num_elem;
if (total_width > max_width && user_pref.split_long_rows)
{
inc = max_width / column_width;
if (inc == 0)
inc++;
}
int col = 0;
while (col < num_elem)
{
int lim = col + inc < num_elem ? col + inc : num_elem;
if (total_width > max_width && user_pref.split_long_rows)
{
if (col != 0)
os << "\n";
int num_cols = lim - col;
if (num_cols == 1)
os << " Column " << col + 1 << ":\n\n";
else if (num_cols == 2)
os << " Columns " << col + 1 << " and " << lim
<< ":\n\n";
else
os << " Columns " << col + 1 << " through " << lim
<< ":\n\n";
}
for (int i = col; i < lim; i++)
{
double val = base + i * increment;
os << " ";
pr_float (os, val, fw);
}
os << "\n";
col += inc;
}
}
}
}
DEFUN ("disp", Fdisp, Sdisp, 1, 1,
"disp (X): display value without name tag")
{
Octave_object retval;
int nargin = args.length ();
if (nargin == 1)
args(0).eval (1);
else
print_usage ("disp");
return retval;
}
static void
init_format_state (void)
{
free_format = 0;
plus_format = 0;
bank_format = 0;
print_e = 0;
print_big_e = 0;
}
static void
set_output_prec_and_fw (int prec, int fw)
{
tree_constant *tmp = 0;
tmp = new tree_constant ((double) prec);
bind_builtin_variable ("output_precision", tmp);
tmp = new tree_constant ((double) fw);
bind_builtin_variable ("output_max_field_width", tmp);
}
void
set_format_style (int argc, char **argv)
{
if (--argc > 0)
{
argv++;
if (*argv[0])
{
if (strcmp (*argv, "short") == 0)
{
if (--argc > 0)
{
argv++;
if (strcmp (*argv, "e") == 0)
{
init_format_state ();
print_e = 1;
}
else if (strcmp (*argv, "E") == 0)
{
init_format_state ();
print_e = 1;
print_big_e = 1;
}
else
{
error ("format: unrecognized option `short %s'", *argv);
return;
}
}
else
init_format_state ();
set_output_prec_and_fw (3, 8);
}
else if (strcmp (*argv, "long") == 0)
{
if (--argc > 0)
{
argv++;
if (strcmp (*argv, "e") == 0)
{
init_format_state ();
print_e = 1;
}
else if (strcmp (*argv, "E") == 0)
{
init_format_state ();
print_e = 1;
print_big_e = 1;
}
else
{
error ("format: unrecognized option `long %s'", *argv);
return;
}
}
else
init_format_state ();
set_output_prec_and_fw (15, 24);
}
else if (strcmp (*argv, "hex") == 0)
error ("format: format state `hex' not implemented yet");
else if (strcmp (*argv, "+") == 0)
{
init_format_state ();
plus_format = 1;
}
else if (strcmp (*argv, "bank") == 0)
{
init_format_state ();
bank_format = 1;
}
else if (strcmp (*argv, "free") == 0)
{
init_format_state ();
free_format = 1;
}
else if (strcmp (*argv, "none") == 0)
{
init_format_state ();
free_format = 1;
}
else if (strcmp (*argv, "compact") == 0)
error ("format: format state `compact' not implemented yet");
else if (strcmp (*argv, "loose") == 0)
error ("format: format state `loose' not implemented yet");
else
error ("format: unrecognized format state `%s'", *argv);
}
else
usage ("format [format_state]");
}
else
{
init_format_state ();
set_output_prec_and_fw (5, 10);
}
}
DEFUN_TEXT ("format", Fformat, Sformat, -1, 1,
"format [style]\n\
\n\
set output formatting style")
{
Octave_object retval;
DEFINE_ARGV("format");
set_format_style (argc, argv);
DELETE_ARGV;
return retval;
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; page-delimiter: "^/\\*" ***
;;; End: ***
*/