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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2008 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/normal.h>
#include <grub/term.h>
#include <grub/i18n.h>
/* Borrowed from GRUB Legacy */
static const char *color_list[16] =
{
"black",
"blue",
"green",
"cyan",
"red",
"magenta",
"brown",
"light-gray",
"dark-gray",
"light-blue",
"light-green",
"light-cyan",
"light-red",
"light-magenta",
"yellow",
"white"
};
static int
parse_color_name (grub_uint8_t *ret, char *name)
{
grub_uint8_t i;
for (i = 0; i < ARRAY_SIZE(color_list); i++)
if (! grub_strcmp (name, color_list[i]))
{
*ret = i;
return 0;
}
return -1;
}
int
grub_parse_color_name_pair (grub_uint8_t *color, const char *name)
{
int result = 1;
grub_uint8_t fg, bg;
char *fg_name, *bg_name;
/* nothing specified by user */
if (name == NULL)
return result;
fg_name = grub_strdup (name);
if (fg_name == NULL)
{
/* "out of memory" message was printed by grub_strdup() */
grub_wait_after_message ();
return result;
}
bg_name = grub_strchr (fg_name, '/');
if (bg_name == NULL)
{
grub_printf_ (N_("Warning: syntax error (missing slash) in `%s'\n"), fg_name);
grub_wait_after_message ();
goto free_and_return;
}
*(bg_name++) = '\0';
if (parse_color_name (&fg, fg_name) == -1)
{
grub_printf_ (N_("Warning: invalid foreground color `%s'\n"), fg_name);
grub_wait_after_message ();
goto free_and_return;
}
if (parse_color_name (&bg, bg_name) == -1)
{
grub_printf_ (N_("Warning: invalid background color `%s'\n"), bg_name);
grub_wait_after_message ();
goto free_and_return;
}
*color = (bg << 4) | fg;
result = 0;
free_and_return:
grub_free (fg_name);
return result;
}
static void
set_colors (void)
{
struct grub_term_output *term;
FOR_ACTIVE_TERM_OUTPUTS(term)
{
/* Propagates `normal' color to terminal current color. */
grub_term_setcolorstate (term, GRUB_TERM_COLOR_NORMAL);
}
}
/* Replace default `normal' colors with the ones specified by user (if any). */
char *
grub_env_write_color_normal (struct grub_env_var *var __attribute__ ((unused)),
const char *val)
{
if (grub_parse_color_name_pair (&grub_term_normal_color, val))
return NULL;
set_colors ();
return grub_strdup (val);
}
/* Replace default `highlight' colors with the ones specified by user (if any). */
char *
grub_env_write_color_highlight (struct grub_env_var *var __attribute__ ((unused)),
const char *val)
{
if (grub_parse_color_name_pair (&grub_term_highlight_color, val))
return NULL;
set_colors ();
return grub_strdup (val);
}
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