size_t text_customword_end_next(Text *txt, size_t pos, int (*isboundary)(int)) {
char c;
Iterator it = text_iterator_get(txt, pos);
while (text_iterator_char_next(&it, &c) && space(c));
if (boundary(c))
do pos = it.pos; while (text_iterator_char_next(&it, &c) && boundary(c) && !space(c));
else
do pos = it.pos; while (text_iterator_char_next(&it, &c) && !isboundary(c));
return pos;
}
size_t text_customword_start_next(Text *txt, size_t pos, int (*isboundary)(int)) {
char c;
Iterator it = text_iterator_get(txt, pos);
if (!text_iterator_byte_get(&it, &c))
return pos;
if (boundary(c))
while (boundary(c) && !space(c) && text_iterator_char_next(&it, &c));
else
while (!boundary(c) && text_iterator_char_next(&it, &c));
while (space(c) && text_iterator_char_next(&it, &c));
return it.pos;
}
size_t text_line_char_set(Text *txt, size_t pos, int count) {
char c;
size_t bol = text_line_begin(txt, pos);
Iterator it = text_iterator_get(txt, bol);
while (count-- > 0 && text_iterator_byte_get(&it, &c) && c != '\r' && c != '\n')
text_iterator_char_next(&it, NULL);
return it.pos;
}
size_t text_line_char_next(Text *txt, size_t pos) {
char c;
Iterator it = text_iterator_get(txt, pos);
if (!text_iterator_byte_get(&it, &c) || c == '\r' || c == '\n')
return pos;
if (!text_iterator_char_next(&it, &c) || c == '\r' || c == '\n')
return pos;
return it.pos;
}
void vis_replace(Vis *vis, size_t pos, const char *data, size_t len) {
Text *txt = vis->win->file->text;
Iterator it = text_iterator_get(txt, pos);
int chars = text_char_count(data, len);
for (char c; chars-- > 0 && text_iterator_byte_get(&it, &c) && c != '\r' && c != '\n'; )
text_iterator_char_next(&it, NULL);
text_delete(txt, pos, it.pos - pos);
vis_insert(vis, pos, data, len);
}
static size_t op_replace(Vis *vis, Text *txt, OperatorContext *c) {
size_t count = 0;
Iterator it = text_iterator_get(txt, c->range.start);
while (it. pos < c->range.end && text_iterator_char_next(&it, NULL))
count++;
op_delete(vis, txt, c);
size_t pos = c->range.start;
for (size_t len = strlen(c->arg->s); count > 0; pos += len, count--)
text_insert(txt, pos, c->arg->s, len);
return pos;
}
int text_line_char_get(Text *txt, size_t pos) {
char c;
int count = 0;
size_t bol = text_line_begin(txt, pos);
Iterator it = text_iterator_get(txt, bol);
while (text_iterator_byte_get(&it, &c) && it.pos < pos && c != '\r' && c != '\n') {
text_iterator_char_next(&it, NULL);
count++;
}
return count;
}
size_t text_char_next(Text *txt, size_t pos) {
Iterator it = text_iterator_get(txt, pos);
text_iterator_char_next(&it, NULL);
return it.pos;
}
