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<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
_BROWSE_TRACE<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"$browse-trace"</span><span class="Delimiter">,</span> _BROWSE_TRACE<span class="Delimiter">);</span>
<span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
case _BROWSE_TRACE: <span class="Delimiter">{</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case _BROWSE_TRACE: <span class="Delimiter">{</span>
start_trace_browser<span class="Delimiter">();</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Globals")</span>
set<long long int> Visible<span class="Delimiter">;</span>
long long int Top_of_screen = <span class="Constant">0</span><span class="Delimiter">;</span>
long long int Last_printed_row = <span class="Constant">0</span><span class="Delimiter">;</span>
map<int<span class="Delimiter">,</span> long long int> Trace_index<span class="Delimiter">;</span> <span class="Comment">// screen row -> trace index</span>
<span class="Delimiter">:(code)</span>
void start_trace_browser<span class="Delimiter">()</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!Trace_stream<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
cerr << <span class="Constant">"computing depth to display</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
long long int min_depth = <span class="Constant">9999</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace_line& curr_line = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth < min_depth<span class="Delimiter">)</span> min_depth = curr_line<span class="Delimiter">.</span>depth<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
cerr << <span class="Constant">"depth is "</span> << min_depth << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
cerr << <span class="Constant">"computing lines to display</span><span class="cSpecial">\n</span><span class="Constant">"</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i < SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>depth == min_depth<span class="Delimiter">)</span>
Visible<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
tb_init<span class="Delimiter">();</span>
Display_row = Display_column = <span class="Constant">0</span><span class="Delimiter">;</span>
tb_event event<span class="Delimiter">;</span>
Top_of_screen = <span class="Constant">0</span><span class="Delimiter">;</span>
refresh_screen_rows<span class="Delimiter">();</span>
while <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
render<span class="Delimiter">();</span>
do <span class="Delimiter">{</span>
tb_poll_event<span class="Delimiter">(</span>&event<span class="Delimiter">);</span>
<span class="Delimiter">}</span> while <span class="Delimiter">(</span>event<span class="Delimiter">.</span>type != TB_EVENT_KEY<span class="Delimiter">);</span>
long long int key = event<span class="Delimiter">.</span>key ? event<span class="Delimiter">.</span>key : event<span class="Delimiter">.</span>ch<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'q'</span> || key == <span class="Constant">'Q'</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'j'</span> || key == TB_KEY_ARROW_DOWN<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// move cursor one line down</span>
if <span class="Delimiter">(</span>Display_row < Last_printed_row<span class="Delimiter">)</span> ++Display_row<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'k'</span> || key == TB_KEY_ARROW_UP<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// move cursor one line up</span>
if <span class="Delimiter">(</span>Display_row > <span class="Constant">0</span><span class="Delimiter">)</span> --Display_row<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'H'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// move cursor to top of screen</span>
Display_row = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'M'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// move cursor to center of screen</span>
Display_row = tb_height<span class="Delimiter">()</span>/<span class="Constant">2</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'L'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// move cursor to bottom of screen</span>
Display_row = tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'J'</span> || key == TB_KEY_PGDN<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// page-down</span>
if <span class="Delimiter">(</span>Trace_index<span class="Delimiter">.</span>find<span class="Delimiter">(</span>tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> != Trace_index<span class="Delimiter">.</span>end<span class="Delimiter">())</span> <span class="Delimiter">{</span>
Top_of_screen = Trace_index[tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span>]+<span class="Constant">1</span><span class="Delimiter">;</span>
refresh_screen_rows<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'K'</span> || key == TB_KEY_PGUP<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// page-up is more convoluted</span>
for <span class="Delimiter">(</span>int screen_row = tb_height<span class="Delimiter">();</span> screen_row > <span class="Constant">0</span> && Top_of_screen > <span class="Constant">0</span><span class="Delimiter">;</span> --screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
--Top_of_screen<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Top_of_screen <= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>Top_of_screen > <span class="Constant">0</span> && !contains_key<span class="Delimiter">(</span>Visible<span class="Delimiter">,</span> Top_of_screen<span class="Delimiter">))</span>
--Top_of_screen<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>Top_of_screen > <span class="Constant">0</span><span class="Delimiter">)</span>
refresh_screen_rows<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == <span class="Constant">'G'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// go to bottom of screen; largely like page-up, interestingly</span>
Top_of_screen = SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>int screen_row = tb_height<span class="Delimiter">();</span> screen_row > <span class="Constant">0</span> && Top_of_screen > <span class="Constant">0</span><span class="Delimiter">;</span> --screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
--Top_of_screen<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>Top_of_screen <= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
while <span class="Delimiter">(</span>Top_of_screen > <span class="Constant">0</span> && !contains_key<span class="Delimiter">(</span>Visible<span class="Delimiter">,</span> Top_of_screen<span class="Delimiter">))</span>
--Top_of_screen<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
refresh_screen_rows<span class="Delimiter">();</span>
<span class="Comment">// move cursor to bottom</span>
Display_row = Last_printed_row<span class="Delimiter">;</span>
refresh_screen_rows<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == TB_KEY_CARRIAGE_RETURN<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// expand lines under current by one level</span>
assert<span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Trace_index<span class="Delimiter">,</span> Display_row<span class="Delimiter">));</span>
long long int start_index = Trace_index[Display_row]<span class="Delimiter">;</span>
long long int index = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Comment">// simultaneously compute end_index and min_depth</span>
int min_depth = <span class="Constant">9999</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index < SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Visible<span class="Delimiter">,</span> index<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
trace_line& curr_line = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
assert<span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth > Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>start_index<span class="Delimiter">).</span>depth<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth < min_depth<span class="Delimiter">)</span> min_depth = curr_line<span class="Delimiter">.</span>depth<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
long long int end_index = index<span class="Delimiter">;</span>
<span class="Comment">// mark as visible all intervening indices at min_depth</span>
for <span class="Delimiter">(</span>index = start_index<span class="Delimiter">;</span> index < end_index<span class="Delimiter">;</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace_line& curr_line = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == min_depth<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Visible<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
refresh_screen_rows<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
if <span class="Delimiter">(</span>key == TB_KEY_BACKSPACE || key == TB_KEY_BACKSPACE2<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// collapse all lines under current</span>
assert<span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Trace_index<span class="Delimiter">,</span> Display_row<span class="Delimiter">));</span>
long long int start_index = Trace_index[Display_row]<span class="Delimiter">;</span>
long long int index = <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Comment">// end_index is the next line at a depth same as or lower than start_index</span>
int initial_depth = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>start_index<span class="Delimiter">).</span>depth<span class="Delimiter">;</span>
for <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index < SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Visible<span class="Delimiter">,</span> index<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
trace_line& curr_line = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth <= initial_depth<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
long long int end_index = index<span class="Delimiter">;</span>
<span class="Comment">// mark as visible all intervening indices at min_depth</span>
for <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index < end_index<span class="Delimiter">;</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
Visible<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
refresh_screen_rows<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
tb_shutdown<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Comment">// update Trace_indices for each screen_row on the basis of Top_of_screen and Visible</span>
void refresh_screen_rows<span class="Delimiter">()</span> <span class="Delimiter">{</span>
long long int screen_row = <span class="Constant">0</span><span class="Delimiter">,</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>
Trace_index<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
for <span class="Delimiter">(</span>screen_row = <span class="Constant">0</span><span class="Delimiter">,</span> index = Top_of_screen<span class="Delimiter">;</span> screen_row < tb_height<span class="Delimiter">()</span> && index < SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">);</span> ++screen_row<span class="Delimiter">,</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// skip lines without depth for now</span>
while <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Visible<span class="Delimiter">,</span> index<span class="Delimiter">))</span> <span class="Delimiter">{</span>
++index<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>index >= SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">))</span> <span class="Identifier">goto</span> done<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
assert<span class="Delimiter">(</span>index < SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">));</span>
Trace_index[screen_row] = index<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
done:<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
void render<span class="Delimiter">()</span> <span class="Delimiter">{</span>
long long int screen_row = <span class="Constant">0</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>screen_row = <span class="Constant">0</span><span class="Delimiter">;</span> screen_row < tb_height<span class="Delimiter">();</span> ++screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Trace_index<span class="Delimiter">,</span> screen_row<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
trace_line& curr_line = Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>Trace_index[screen_row]<span class="Delimiter">);</span>
ostringstream out<span class="Delimiter">;</span>
out << std::setw<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">)</span> << curr_line<span class="Delimiter">.</span>depth << <span class="Constant">' '</span> << curr_line<span class="Delimiter">.</span>label << <span class="Constant">": "</span> << curr_line<span class="Delimiter">.</span>contents<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>screen_row < tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
long long int delta = lines_hidden<span class="Delimiter">(</span>screen_row<span class="Delimiter">);</span>
<span class="Comment">// home-brew escape sequence for red</span>
if <span class="Delimiter">(</span>delta > <span class="Constant">999</span><span class="Delimiter">)</span> out << <span class="Constant">"{"</span><span class="Delimiter">;</span>
out << <span class="Constant">" ("</span> << lines_hidden<span class="Delimiter">(</span>screen_row<span class="Delimiter">)</span> << <span class="Constant">")"</span><span class="Delimiter">;</span>
if <span class="Delimiter">(</span>delta > <span class="Constant">999</span><span class="Delimiter">)</span> out << <span class="Constant">"}"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
render_line<span class="Delimiter">(</span>screen_row<span class="Delimiter">,</span> out<span class="Delimiter">.</span>str<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
<span class="Comment">// clear rest of screen</span>
Last_printed_row = screen_row-<span class="Constant">1</span><span class="Delimiter">;</span>
for <span class="Delimiter">(;</span> screen_row < tb_height<span class="Delimiter">();</span> ++screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
render_line<span class="Delimiter">(</span>screen_row<span class="Delimiter">,</span> <span class="Constant">"~"</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Comment">// move cursor back to display row at the end</span>
tb_set_cursor<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> Display_row<span class="Delimiter">);</span>
tb_present<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
long long int lines_hidden<span class="Delimiter">(</span>long long int screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>Trace_index<span class="Delimiter">,</span> screen_row<span class="Delimiter">));</span>
if <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Trace_index<span class="Delimiter">,</span> screen_row+<span class="Constant">1</span><span class="Delimiter">))</span>
<span class="Identifier">return</span> SIZE<span class="Delimiter">(</span>Trace_stream<span class="Delimiter">-></span>past_lines<span class="Delimiter">)</span>-Trace_index[screen_row]<span class="Delimiter">;</span>
else
<span class="Identifier">return</span> Trace_index[screen_row+<span class="Constant">1</span>] - Trace_index[screen_row]<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
void render_line<span class="Delimiter">(</span>int screen_row<span class="Delimiter">,</span> const string& s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
long long int col = <span class="Constant">0</span><span class="Delimiter">;</span>
int color = TB_WHITE<span class="Delimiter">;</span>
for <span class="Delimiter">(</span>col = <span class="Constant">0</span><span class="Delimiter">;</span> col < tb_width<span class="Delimiter">()</span> && col < SIZE<span class="Delimiter">(</span>s<span class="Delimiter">);</span> ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span>
char c = s<span class="Delimiter">.</span>at<span class="Delimiter">(</span>col<span class="Delimiter">);</span> <span class="Comment">// todo: unicode</span>
if <span class="Delimiter">(</span>c == <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> c = <span class="Constant">';'</span><span class="Delimiter">;</span> <span class="Comment">// replace newlines with semi-colons</span>
<span class="Comment">// escapes. hack: can't start a line with them.</span>
if <span class="Delimiter">(</span>c == <span class="Constant">'{'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> color = <span class="Comment">/*</span><span class="Comment">red</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> c = <span class="Constant">' '</span><span class="Delimiter">;</span> <span class="Delimiter">}</span>
if <span class="Delimiter">(</span>c == <span class="Constant">'}'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> color = TB_WHITE<span class="Delimiter">;</span> c = <span class="Constant">' '</span><span class="Delimiter">;</span> <span class="Delimiter">}</span>
tb_change_cell<span class="Delimiter">(</span>col<span class="Delimiter">,</span> screen_row<span class="Delimiter">,</span> c<span class="Delimiter">,</span> color<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
for <span class="Delimiter">(;</span> col < tb_width<span class="Delimiter">();</span> ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span>
tb_change_cell<span class="Delimiter">(</span>col<span class="Delimiter">,</span> screen_row<span class="Delimiter">,</span> <span class="Constant">' '</span><span class="Delimiter">,</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
</pre>
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