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- /*
-
- Copyright (C) 1996 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
-
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
-
- #include <string>
-
- #include <iostream.h>
-
- #include "oct-term.h"
- #include "str-vec.h"
-
- // Create a string vector from a NULL terminated list of C strings.
-
- string_vector::string_vector (const char * const *s)
- : Array<string> ()
- {
- int n = 0;
-
- while (*s++)
- n++;
-
- resize (n);
-
- for (int i = 0; i < n; i++)
- elem (i) = s[i];
- }
-
- // Create a string vector from up to N C strings. Assumes that N is
- // nonnegative.
-
- string_vector::string_vector (const char * const *s, int n)
- : Array<string> (n)
- {
- for (int i = 0; i < n; i++)
- elem (i) = s[i];
- }
-
- // Format a list in neat columns. Mostly stolen from GNU ls.
-
- ostream&
- string_vector::list_in_columns (ostream& os) const
- {
- // Compute the maximum name length.
-
- int max_name_length = 0;
- int total_names = length ();
-
- for (int i = 0; i < total_names; i++)
- {
- int name_length = elem (i).length ();
- if (name_length > max_name_length)
- max_name_length = name_length;
- }
-
- // Allow at least two spaces between names.
-
- max_name_length += 2;
-
- // Calculate the maximum number of columns that will fit.
-
- int line_length = terminal_columns ();
- int cols = line_length / max_name_length;
- if (cols == 0)
- cols = 1;
-
- // Calculate the number of rows that will be in each column except
- // possibly for a short column on the right.
-
- int rows = total_names / cols + (total_names % cols != 0);
-
- // Recalculate columns based on rows.
-
- cols = total_names / rows + (total_names % rows != 0);
-
- int count;
- for (int row = 0; row < rows; row++)
- {
- count = row;
- int pos = 0;
-
- // Print the next row.
-
- while (1)
- {
- string nm = elem (count);
-
- os << nm;
- int name_length = nm.length ();
-
- count += rows;
- if (count >= total_names)
- break;
-
- int spaces_to_pad = max_name_length - name_length;
- for (int i = 0; i < spaces_to_pad; i++)
- os << " ";
- pos += max_name_length;
- }
- os << "\n";
- }
-
- return os;
- }
-
- /*
- ;;; Local Variables: ***
- ;;; mode: C++ ***
- ;;; End: ***
- */
-