static void
draw_window (size_t topline, Window wp)
{
size_t i, o;
Region r;
int highlight = calculate_highlight_region (wp, &r);
/* Find the first line to display on the first screen line. */
for (o = buffer_start_of_line (get_window_bp (wp), window_o (wp)), i = get_window_topdelta (wp);
i > 0 && o > 0;
assert ((o = buffer_prev_line (get_window_bp (wp), o)) != SIZE_MAX), --i)
;
/* Draw the window lines. */
size_t cur_tab_width = tab_width (get_window_bp (wp));
for (i = topline; i < get_window_eheight (wp) + topline; ++i)
{
/* Clear the line. */
term_move (i, 0);
term_clrtoeol ();
/* If at the end of the buffer, don't write any text. */
if (o == SIZE_MAX)
continue;
draw_line (i, get_window_start_column (wp), wp, o, r, highlight, cur_tab_width);
if (get_window_start_column (wp) > 0)
{
term_move (i, 0);
term_addstr("$");
}
o = buffer_next_line (get_window_bp (wp), o);
}
set_window_all_displayed (wp, o >= get_buffer_size (get_window_bp (wp)));
/* Draw the status line only if there is available space after the
buffer text space. */
if (get_window_fheight (wp) - get_window_eheight (wp) > 0)
draw_status_line (topline + get_window_eheight (wp), wp);
}
int Reader::buffer_next() {
assert(states.size() == 1);
assert(buff_written == 0);
if (input->eof()) return 0;
int seq_start = 0;
while (true) {
int start_offset = buff_written;
if (buffer_next_line() < 0) {
return -1;
}
// buff could change due to reallocation so we need to calculate it
// after reading a line.
const int line_start = start_offset;
const char* line = buff + start_offset;
assert(states.size() > 0);
auto state = states.top();
//std::cerr << state << " " << line << std::endl;
switch (state) {
case OUT:
if (strncmp(line, "{RED", 4) == 0) {
states.push(IN);
next_type_ = READ;
} else if (strncmp(line, "{OVL", 4) == 0) {
states.push(IN);
next_type_ = OVERLAP;
} else if (strncmp(line, "{UNV", 4) == 0) {
states.push(IN);
next_type_ = UNIVERSAL;
} else if (strncmp(line, "{LIB", 4) == 0) {
states.push(IN);
next_type_ = LIBRARY;
} else if (strncmp(line, "{FRG", 4) == 0) {
states.push(IN);
next_type_ = FRAGMENT;
} else {
std::cerr << line_num << ":" << line << std::endl;
assert(false);
}
buff_marks.push_back(BufferMark(ObjectDef, line_start, buff_written));
break;
case IN:
if (line[0] == '}') {
buff_marks.push_back(BufferMark(ObjectEnd, line_start, buff_written));
states.pop();
} else if (strncmp(line, "seq:", 4) == 0) {
states.push(IN_STR);
seq_start = line_start;
} else if (strncmp(line, "qlt:", 4) == 0) {
states.push(IN_STR);
seq_start = line_start;
} else if (strncmp(line, "com:", 4) == 0) {
states.push(IN_STR);
seq_start = line_start;
} else if (strncmp(line, "{DST", 4) == 0) {
buff_marks.push_back(BufferMark(ObjectDef, line_start, buff_written));
states.push(IN);
} else {
buff_marks.push_back(BufferMark(AttrDef, line_start, buff_written));
}
break;
case IN_STR:
if (line[0] == '.') {
// we do not want to include the '.' at the end
buff_marks.push_back(BufferMark(AttrDef, seq_start, buff_written - 1));
states.pop();
}
break;
default:
assert(false);
}
if (states.size() == 1) {
//cerr << "FILL " << buff << endl;
return buff_written;
}
}
return -1;
}
