/* Initialize the screen. */
void
grub_normal_init_page (struct grub_term_output *term)
{
int msg_len;
int posx;
const char *msg = _("GNU GRUB version %s");
char *msg_formatted;
grub_uint32_t *unicode_msg;
grub_uint32_t *last_position;
grub_term_cls (term);
msg_formatted = grub_xasprintf (msg, PACKAGE_VERSION);
if (!msg_formatted)
return;
msg_len = grub_utf8_to_ucs4_alloc (msg_formatted,
&unicode_msg, &last_position);
grub_free (msg_formatted);
if (msg_len < 0)
{
return;
}
posx = grub_getstringwidth (unicode_msg, last_position, term);
posx = (grub_term_width (term) - posx) / 2;
grub_term_gotoxy (term, posx, 1);
grub_print_ucs4 (unicode_msg, last_position, 0, 0, term);
grub_putcode ('\n', term);
grub_putcode ('\n', term);
grub_free (unicode_msg);
}
static int
grub_print_message_indented_real (const char *msg, int margin_left,
int margin_right,
struct grub_term_output *term, int dry_run)
{
grub_uint32_t *unicode_msg;
grub_uint32_t *last_position;
int msg_len;
int ret = 0;
msg_len = grub_utf8_to_ucs4_alloc (msg, &unicode_msg, &last_position);
if (msg_len < 0)
{
return 0;
}
if (dry_run)
ret = grub_ucs4_count_lines (unicode_msg, last_position, margin_left,
margin_right, term);
else
grub_print_ucs4 (unicode_msg, last_position, margin_left,
margin_right, term);
grub_free (unicode_msg);
return ret;
}
static grub_err_t
grub_cmd_help (grub_extcmd_t ext __attribute__ ((unused)), int argc,
char **args)
{
int cnt = 0;
char *currarg;
auto int print_command_info (grub_command_t cmd);
auto int print_command_help (grub_command_t cmd);
int print_command_info (grub_command_t cmd)
{
if ((cmd->prio & GRUB_PRIO_LIST_FLAG_ACTIVE) &&
(cmd->flags & GRUB_COMMAND_FLAG_CMDLINE))
{
struct grub_term_output *term;
const char *summary_translated = _(cmd->summary);
char *command_help;
grub_uint32_t *unicode_command_help;
grub_uint32_t *unicode_last_position;
command_help = grub_xasprintf ("%s %s", cmd->name, summary_translated);
if (!command_help)
return 1;
grub_utf8_to_ucs4_alloc (command_help, &unicode_command_help,
&unicode_last_position);
FOR_ACTIVE_TERM_OUTPUTS(term)
{
unsigned stringwidth;
grub_uint32_t *unicode_last_screen_position;
unicode_last_screen_position = unicode_command_help;
stringwidth = 0;
while (unicode_last_screen_position < unicode_last_position &&
stringwidth < ((grub_term_width (term) / 2) - 2))
{
stringwidth
+= grub_term_getcharwidth (term,
*unicode_last_screen_position);
unicode_last_screen_position++;
}
grub_print_ucs4 (unicode_command_help,
unicode_last_screen_position, term);
if (!(cnt % 2))
grub_print_spaces (term, grub_term_width (term) / 2
- stringwidth);
}
if (cnt % 2)
grub_printf ("\n");
cnt++;
grub_free (command_help);
grub_free (unicode_command_help);
}
return 0;
}
int print_command_help (grub_command_t cmd)
{
if (cmd->prio & GRUB_PRIO_LIST_FLAG_ACTIVE)
{
if (! grub_strncmp (cmd->name, currarg, grub_strlen (currarg)))
{
if (cnt++ > 0)
grub_printf ("\n\n");
if (cmd->flags & GRUB_COMMAND_FLAG_EXTCMD)
grub_arg_show_help ((grub_extcmd_t) cmd->data);
else
grub_printf ("%s %s %s\n%s\b", _("Usage:"), cmd->name, _(cmd->summary),
_(cmd->description));
}
}
return 0;
}
if (argc == 0)
{
grub_command_iterate (print_command_info);
if (!(cnt % 2))
grub_printf ("\n");
}
else
{
int i;
for (i = 0; i < argc; i++)
{
currarg = args[i];
grub_command_iterate (print_command_help);
}
}
return 0;
}
static grub_err_t
grub_cmd_help (grub_extcmd_t ext __attribute__ ((unused)), int argc,
char **args)
{
int cnt = 0;
char *currarg;
if (argc == 0)
{
grub_command_t cmd;
FOR_COMMANDS(cmd)
{
if ((cmd->prio & GRUB_PRIO_LIST_FLAG_ACTIVE) &&
(cmd->flags & GRUB_COMMAND_FLAG_CMDLINE))
{
struct grub_term_output *term;
const char *summary_translated = _(cmd->summary);
char *command_help;
grub_uint32_t *unicode_command_help;
grub_uint32_t *unicode_last_position;
command_help = grub_xasprintf ("%s %s", cmd->name, summary_translated);
if (!command_help)
break;
grub_utf8_to_ucs4_alloc (command_help, &unicode_command_help,
&unicode_last_position);
FOR_ACTIVE_TERM_OUTPUTS(term)
{
unsigned stringwidth;
grub_uint32_t *unicode_last_screen_position;
unicode_last_screen_position = unicode_command_help;
stringwidth = 0;
while (unicode_last_screen_position < unicode_last_position &&
stringwidth < ((grub_term_width (term) / 2) - 2))
{
struct grub_unicode_glyph glyph;
unicode_last_screen_position
+= grub_unicode_aglomerate_comb (unicode_last_screen_position,
unicode_last_position
- unicode_last_screen_position,
&glyph);
stringwidth
+= grub_term_getcharwidth (term, &glyph);
}
grub_print_ucs4 (unicode_command_help,
unicode_last_screen_position, 0, 0, term);
if (!(cnt % 2))
grub_print_spaces (term, grub_term_width (term) / 2
- stringwidth);
}
if (cnt % 2)
grub_printf ("\n");
cnt++;
grub_free (command_help);
grub_free (unicode_command_help);
}
}
if (!(cnt % 2))
grub_printf ("\n");
}