status_t
console_init(void)
{
update_screen_size();
console_hide_cursor();
console_clear_screen();
// enable stdio functionality
stdin = (FILE *)&sInput;
stdout = stderr = (FILE *)&sOutput;
return B_OK;
}
//------------------------------------------------------------------------------
static void display_matches(char** matches, int match_count, int max_length)
{
int i;
char** new_matches;
CONSOLE_SCREEN_BUFFER_INFO csbi;
WORD text_attrib;
HANDLE std_out_handle;
wchar_t buffer[512];
int show_matches = 2;
// The matches need to be processed so needless path information is removed
// (this is caused by the \ and / hurdles).
max_length = 0;
++match_count;
new_matches = (char**)calloc(1, match_count * sizeof(char**));
for (i = 0; i < match_count; ++i)
{
int len;
char* slash = strrchr(matches[i], '\\');
new_matches[i] = (slash != NULL) ? slash + 1 : matches[i];
len = (int)strlen(new_matches[i]);
max_length = len > max_length ? len : max_length;
}
--match_count;
std_out_handle = GetStdHandle(STD_OUTPUT_HANDLE);
GetConsoleScreenBufferInfo(std_out_handle, &csbi);
// Get the console's current colour settings
if (g_match_palette[0] == -1)
{
// Pick a suitable foreground colour, check fg isn't the same as bg, and set.
text_attrib = csbi.wAttributes;
text_attrib ^= 0x08;
if ((text_attrib & 0xf0) == (text_attrib & 0x0f))
{
text_attrib ^= FOREGROUND_INTENSITY;
}
}
else
{
text_attrib = csbi.wAttributes & 0xf0;
text_attrib |= (g_match_palette[0] & 0x0f);
}
SetConsoleTextAttribute(std_out_handle, text_attrib);
// If there's lots of matches, check with the user before displaying them
// This matches readline's behaviour, which will get skipped (annoyingly)
if ((rl_completion_query_items > 0) &&
(match_count >= rl_completion_query_items))
{
DWORD written;
_snwprintf(
buffer,
sizeof_array(buffer),
L"\nDisplay all %d possibilities? (y or n)",
match_count
);
WriteConsoleW(std_out_handle, buffer, wcslen(buffer), &written, NULL);
while (show_matches > 1)
{
int c = rl_read_key();
switch (c)
{
case 'y':
case 'Y':
case ' ':
show_matches = 1;
break;
case 'n':
case 'N':
case 0x7f:
show_matches = 0;
break;
}
}
}
// Get readline to display the matches. Flush stream so we catch set colours
update_screen_size();
if (show_matches > 0)
{
rl_display_match_list(new_matches, match_count, max_length);
}
else
{
rl_crlf();
}
fflush(rl_outstream);
// Reset console colour back to normal.
SetConsoleTextAttribute(std_out_handle, csbi.wAttributes);
rl_forced_update_display();
rl_display_fixed = 1;
free(new_matches);
}