/* Moves cursor to the beginning of the current or previous word on Meta+B. */
static void
find_prev_word(void)
{
while(input_stat.index > 0 && iswspace(input_stat.line[input_stat.index - 1]))
{
input_stat.curs_pos -= vifm_wcwidth(input_stat.line[input_stat.index - 1]);
input_stat.index--;
}
while(input_stat.index > 0 &&
!iswspace(input_stat.line[input_stat.index - 1]))
{
input_stat.curs_pos -= vifm_wcwidth(input_stat.line[input_stat.index - 1]);
input_stat.index--;
}
}
/* Returns width of the character in the terminal. */
static size_t
get_char_screen_width(const char str[], size_t char_width)
{
const wchar_t wide = utf8_char_to_wchar(str, char_width);
const size_t result = vifm_wcwidth(wide);
return (result == (size_t)-1) ? 1 : result;
}
/* Handles backspace. */
static void
cmd_ctrl_h(key_info_t key_info, keys_info_t *keys_info)
{
input_stat.history_search = HIST_NONE;
stop_completion();
if(should_quit_on_backspace())
{
cmd_ctrl_c(key_info, keys_info);
return;
}
if(input_stat.index == 0)
{
return;
}
input_stat.index--;
input_stat.len--;
input_stat.curs_pos -= vifm_wcwidth(input_stat.line[input_stat.index]);
if(input_stat.index == input_stat.len)
{
input_stat.line[input_stat.index] = L'\0';
}
else
{
wcsdel(input_stat.line, input_stat.index + 1, 1);
}
update_cmdline_text();
}
/* Moves cursor to the end of the current or next word on Meta+F. */
static void
find_next_word(void)
{
while(input_stat.index < input_stat.len
&& iswspace(input_stat.line[input_stat.index]))
{
input_stat.curs_pos += vifm_wcwidth(input_stat.line[input_stat.index]);
input_stat.index++;
}
while(input_stat.index < input_stat.len
&& !iswspace(input_stat.line[input_stat.index]))
{
input_stat.curs_pos += vifm_wcwidth(input_stat.line[input_stat.index]);
input_stat.index++;
}
}
/* Handler of Ctrl-W shortcut, which remove all to the left until beginning of
* the word is found (i.e. until first delimiter character). */
static void
cmd_ctrl_w(key_info_t key_info, keys_info_t *keys_info)
{
int old;
input_stat.history_search = HIST_NONE;
stop_completion();
old = input_stat.index;
while(input_stat.index > 0 && iswspace(input_stat.line[input_stat.index - 1]))
{
input_stat.curs_pos -= vifm_wcwidth(input_stat.line[input_stat.index - 1]);
input_stat.index--;
}
if(iswalnum(input_stat.line[input_stat.index - 1]))
{
while(input_stat.index > 0 &&
iswalnum(input_stat.line[input_stat.index - 1]))
{
const wchar_t curr_wchar = input_stat.line[input_stat.index - 1];
input_stat.curs_pos -= vifm_wcwidth(curr_wchar);
input_stat.index--;
}
}
else
{
while(input_stat.index > 0 &&
!iswalnum(input_stat.line[input_stat.index - 1]) &&
!iswspace(input_stat.line[input_stat.index - 1]))
{
const wchar_t curr_wchar = input_stat.line[input_stat.index - 1];
input_stat.curs_pos -= vifm_wcwidth(curr_wchar);
input_stat.index--;
}
}
if(input_stat.index != old)
{
wcsdel(input_stat.line, input_stat.index + 1, old - input_stat.index);
input_stat.len -= old - input_stat.index;
}
update_cmdline_text();
}
static void
cmd_right(key_info_t key_info, keys_info_t *keys_info)
{
input_stat.history_search = HIST_NONE;
stop_completion();
if(input_stat.index < input_stat.len)
{
input_stat.curs_pos += vifm_wcwidth(input_stat.line[input_stat.index]);
input_stat.index++;
update_cursor();
}
}
static void
cmd_left(key_info_t key_info, keys_info_t *keys_info)
{
input_stat.history_search = HIST_NONE;
stop_completion();
if(input_stat.index > 0)
{
input_stat.index--;
input_stat.curs_pos -= vifm_wcwidth(input_stat.line[input_stat.index]);
update_cursor();
}
}
static int
def_handler(wchar_t key)
{
void *p;
wchar_t buf[2] = {key, L'\0'};
input_stat.history_search = HIST_NONE;
if(input_stat.complete_continue
&& input_stat.line[input_stat.index - 1] == L'/' && key == '/')
{
stop_completion();
return 0;
}
stop_completion();
if(key != L'\r' && !iswprint(key))
return 0;
p = realloc(input_stat.line, (input_stat.len + 2) * sizeof(wchar_t));
if(p == NULL)
{
leave_cmdline_mode();
return 0;
}
input_stat.line = (wchar_t *) p;
if(input_stat.len == 0)
input_stat.line[0] = L'\0';
input_stat.index++;
wcsins(input_stat.line, buf, input_stat.index);
input_stat.len++;
input_stat.curs_pos += vifm_wcwidth(key);
update_cmdline_size();
update_cmdline_text();
return 0;
}
/* Converts the leading character of the str string to a printable string. Puts
* number of screen character positions taken by the resulting string
* representation of a character into *screen_width. Returns pointer to a
* statically allocated buffer. */
TSTATIC const char *
strchar2str(const char str[], int pos, size_t *screen_width)
{
static char buf[32];
const size_t char_width = utf8_chrw(str);
if(char_width != 1 || (unsigned char)str[0] >= (unsigned char)' ')
{
memcpy(buf, str, char_width);
buf[char_width] = '\0';
*screen_width = vifm_wcwidth(get_first_wchar(str));
}
else if(str[0] == '\n')
{
buf[0] = '\0';
*screen_width = 0;
}
else if(str[0] == '\b')
{
strcpy(buf, "");
*screen_width = 0;
}
else if(str[0] == '\r')
{
strcpy(buf, "<cr>");
*screen_width = 4;
}
else if(str[0] == '\t')
{
const size_t space_count = cfg.tab_stop - pos%cfg.tab_stop;
memset(buf, ' ', space_count);
buf[space_count] = '\0';
*screen_width = space_count;
}
else if(str[0] == '\033')
{
char *dst = buf;
while(*str != 'm' && *str != '\0' && (size_t)(dst - buf) < sizeof(buf) - 2)
{
*dst++ = *str++;
}
if(*str != 'm')
{
buf[0] = '\0';
}
else
{
*dst++ = 'm';
*dst = '\0';
}
*screen_width = 0;
}
else if((unsigned char)str[0] < (unsigned char)' ')
{
buf[0] = '^';
buf[1] = ('A' - 1) + str[0];
buf[2] = '\0';
*screen_width = 2;
}
else
{
buf[0] = str[0];
buf[1] = '\0';
*screen_width = 1;
}
return buf;
}
static int
locale_works(void)
{
return (vifm_wcwidth(L'丝') == 2);
}
