int utf8len(const char *s, int len){
const char *p = s;
int n = 0, nc = 0;
while(*p != '\0' && n < len){
int k = utf8charlen(*p);
n += k;
nc++;
p += k;
}
if(n > len) return -1;
return nc;
}
static inline const char* skipChar( const char* si)
{
unsigned char charsize = utf8charlen( *si);
if (!charsize)
{
throw strus::runtime_error(_TXT( "illegal UTF-8 character in input: %u"), (unsigned int)(unsigned char)*si);
}
else
{
return si+charsize;
}
}
char *utf8substr(const char *s, int len){
int n = 0, size = 0;
const char *p = s;
int l;
while((l = utf8charlen(*p)) && n != len){
p += l;
size += l;
n++;
}
if(l == 0) size++;
char *str = new char[size + 1];
strncpy(str, s, size);
str[size] = '\0';
return str;
}
static widget_handler_status_T
display_button(struct dialog_data *dlg_data, struct widget_data *widget_data)
{
struct terminal *term = dlg_data->win->term;
struct color_pair *color, *shortcut_color;
struct el_box *pos = &widget_data->box;
int len, x;
int sel = is_selected_widget(dlg_data, widget_data);
if (sel) {
shortcut_color = get_bfu_color(term, "dialog.button-shortcut-selected");
color = get_bfu_color(term, "dialog.button-selected");
} else {
shortcut_color = get_bfu_color(term, "dialog.button-shortcut");
color = get_bfu_color(term, "dialog.button");
}
if (!color || !shortcut_color) return EVENT_PROCESSED;
#ifdef CONFIG_UTF8
if (term->utf8_cp) {
int button_left_len = utf8_ptr2cells(BUTTON_LEFT, NULL);
int button_right_len = utf8_ptr2cells(BUTTON_RIGHT, NULL);
x = pos->x + button_left_len;
len = widget_data->box.width -
(button_left_len + button_right_len);
} else
#endif /* CONFIG_UTF8 */
{
x = pos->x + BUTTON_LEFT_LEN;
len = widget_data->box.width - BUTTON_LR_LEN;
}
draw_dlg_text(dlg_data, pos->x, pos->y, BUTTON_LEFT, BUTTON_LEFT_LEN, 0, color);
if (len > 0) {
unsigned char *text = widget_data->widget->text;
int hk_pos = widget_data->widget->info.button.hotkey_pos;
int attr;
attr = get_opt_bool("ui.dialogs.underline_button_shortcuts",
NULL)
? SCREEN_ATTR_UNDERLINE : 0;
#ifdef CONFIG_UTF8
if (term->utf8_cp) {
if (hk_pos >= 0) {
int hk_bytes = utf8charlen(&text[hk_pos+1]);
int cells_to_hk = utf8_ptr2cells(text,
&text[hk_pos]);
int right = widget_data->widget->info.button.truetextlen
- hk_pos
- hk_bytes;
int hk_cells = utf8_char2cells(&text[hk_pos
+ 1],
NULL);
if (hk_pos)
draw_dlg_text(dlg_data, x, pos->y,
text, hk_pos, 0, color);
draw_dlg_text(dlg_data, x + cells_to_hk, pos->y,
&text[hk_pos + 1], hk_bytes,
attr, shortcut_color);
if (right > 1)
draw_dlg_text(dlg_data, x+cells_to_hk+hk_cells,
pos->y,
&text[hk_pos + hk_bytes + 1],
right - 1, 0, color);
} else {
int hk_width = utf8_char2cells(text, NULL);
int hk_len = utf8charlen(text);
int len_to_display =
utf8_cells2bytes(&text[hk_len],
len - hk_width,
NULL);
draw_dlg_text(dlg_data, x, pos->y,
text, hk_len,
attr, shortcut_color);
draw_dlg_text(dlg_data, x + hk_width, pos->y,
&text[hk_len], len_to_display,
0, color);
}
} else
#endif /* CONFIG_UTF8 */
if (hk_pos >= 0) {
int right = widget_data->widget->info.button.truetextlen - hk_pos - 1;
if (hk_pos) {
draw_dlg_text(dlg_data, x, pos->y, text, hk_pos, 0, color);
}
draw_dlg_text(dlg_data, x + hk_pos, pos->y,
&text[hk_pos + 1], 1, attr, shortcut_color);
if (right > 1) {
draw_dlg_text(dlg_data, x + hk_pos + 1, pos->y,
&text[hk_pos + 2], right - 1, 0, color);
}
} else {
draw_dlg_text(dlg_data, x, pos->y, text, 1, attr, shortcut_color);
draw_dlg_text(dlg_data, x + 1, pos->y, &text[1], len - 1, 0, color);
}
}
#ifdef CONFIG_UTF8
if (term->utf8_cp) {
int text_cells = utf8_ptr2cells(widget_data->widget->text, NULL);
int hk = (widget_data->widget->info.button.hotkey_pos >= 0);
draw_dlg_text(dlg_data, x + text_cells - hk, pos->y,
BUTTON_RIGHT, BUTTON_RIGHT_LEN, 0, color);
} else
#endif /* CONFIG_UTF8 */
draw_dlg_text(dlg_data, x + len, pos->y, BUTTON_RIGHT,
BUTTON_RIGHT_LEN, 0, color);
if (sel) {
set_dlg_cursor(term, dlg_data, x, pos->y, 1);
set_dlg_window_ptr(dlg_data, dlg_data->win, pos->x, pos->y);
}
return EVENT_PROCESSED;
}
const char *utf8nextchar(const char *s){
return s + utf8charlen(*s);
}
/** Allocates a line_info table describing the layout of the textarea buffer.
*
* @param text the text to format; must be in UTF-8
* @param width is max width and the offset at which @a text will be
* wrapped
* @param wrap controls how the wrapping of @a text is performed
* @param format is non zero the @a text will be modified to make it
* suitable for encoding it for form posting
*/
static struct line_info *
format_textutf8(unsigned char *text, int width, enum form_wrap wrap, int format)
{
struct line_info *line = NULL;
int line_number = 0;
int begin = 0;
int pos = 0;
unsigned char *text_end;
int skip;
unsigned char *wrappos=NULL;
int chars_cells=0; /* Number of console chars on line */
assert(text);
if_assert_failed return NULL;
/* Allocate the ending entries */
if (!realloc_line_info(&line, 0))
return NULL;
text_end = text + strlen(text);
while (text[pos]) {
int char_cells = utf8_char2cells(&text[pos], text_end);
if (text[pos] == ' ')
wrappos = &text[pos];
if (text[pos] == '\n') {
skip = 1;
} else if (wrap == FORM_WRAP_NONE || chars_cells + char_cells < width) {
pos += utf8charlen(&text[pos]);
chars_cells += char_cells;
continue;
} else {
if (wrappos) {
/* When formatting text for form submitting we
* have to apply the wrapping mode. */
if (wrap == FORM_WRAP_HARD && format)
*wrappos = '\n';
pos = wrappos - text;
}
skip = !!wrappos;
}
if (!realloc_line_info(&line, line_number)) {
mem_free_if(line);
return NULL;
}
line[line_number].last_char_width = char_cells;
line[line_number].split_next = !skip;
line[line_number].start = begin;
line[line_number++].end = pos;
line[line_number].split_prev = !skip;
begin = pos += skip;
chars_cells = 0;
wrappos = NULL;
}
line[line_number].split_next = 0;
/* Flush the last text before the loop ended */
line[line_number].start = begin;
line[line_number++].end = pos;
/* Add end marker */
line[line_number].start = line[line_number].end = -1;
line[line_number].split_next = line[line_number].split_prev = 0;
line[0].split_prev = 0;
return line;
}
