int
esc_print_line(const char line[], WINDOW *win, int col, int row, int max_width,
int dry_run, esc_state *state, int *printed)
{
int offset;
const char *curr = line;
size_t pos = 0U;
checked_wmove(win, row, col);
while(pos <= (size_t)max_width && *curr != '\0')
{
size_t screen_width;
const char *const char_str = strchar2str(curr, pos, &screen_width);
pos += screen_width;
if(pos <= (size_t)max_width)
{
if(!dry_run || screen_width == 0)
{
print_char_esc(win, char_str, state);
}
if(*curr == '\b')
{
if(!dry_run)
{
int y, x;
getyx(win, y, x);
if(x > 0)
{
checked_wmove(win, y, x - 1);
}
}
if(pos > 0)
{
pos--;
}
}
curr += get_char_width_esc(curr);
}
}
*printed = pos;
offset = curr - line;
/* Always process all escape sequences of the line in order to preserve all
* elements of highlighting even when lines are not fully drawn. */
curr--;
while((curr = strchr(curr + 1, '\033')) != NULL)
{
size_t screen_width;
const char *const char_str = strchar2str(curr, 0, &screen_width);
print_char_esc(win, char_str, state);
}
return offset;
}
TEST(cyrillic_character_width_is_determined_correctly, IF(locale_works))
{
size_t screen_width;
const char *const str = strchar2str("йклм", 0, &screen_width);
assert_string_equal("й", str);
assert_int_equal(1, screen_width);
}
TEST(chinese_character_width_is_determined_correctly, IF(locale_works))
{
size_t screen_width;
const char *const str = strchar2str("师从刀", 0, &screen_width);
assert_string_equal("师", str);
assert_int_equal(2, screen_width);
}