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mu/html/100trace_browser.cc.html
Kartik Agaram 08a0eed699 4891 
Couple more tweaks to html rendering:
a) SubX definitions no longer link redundantly to themselves. This long-standing
issue turns out to be tractable to solve for SubX files since the syntax
is so simple.
b) Fix links to SubX definitions in other directories. I forgot that I
have to always generate tags from the directory of the file being linkified.
c) Fix link colors. Before we lost all syntax highlighting for functions
and Globals. Now they maintain their colors, just add an underline.
2018-12-30 00:02:42 -08:00

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - 100trace_browser.cc</title>
<meta name="Generator" content="Vim/8.0">
<meta name="plugin-version" content="vim7.4_v2">
<meta name="syntax" content="cpp">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal-light">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; }
body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; }
a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
.LineNr { }
.Constant { color: #008787; }
.Delimiter { color: #c000c0; }
.Special { color: #d70000; }
.Identifier { color: #af5f00; }
.Normal { color: #000000; background-color: #c6c6c6; padding-bottom: 1px; }
.Comment { color: #005faf; }
.cSpecial { color: #008000; }
-->
</style>
<script type='text/javascript'>
<!--
/* function to open any folds containing a jumped-to line before jumping to it */
function JumpToLine()
{
var lineNum;
lineNum = window.location.hash;
lineNum = lineNum.substr(1); /* strip off '#' */
if (lineNum.indexOf('L') == -1) {
lineNum = 'L'+lineNum;
}
lineElem = document.getElementById(lineNum);
/* Always jump to new location even if the line was hidden inside a fold, or
* we corrected the raw number to a line ID.
*/
if (lineElem) {
lineElem.scrollIntoView(true);
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return true;
}
if ('onhashchange' in window) {
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</head>
<body onload='JumpToLine();'>
<a href='https://github.com/akkartik/mu/blob/master/100trace_browser.cc'>https://github.com/akkartik/mu/blob/master/100trace_browser.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: A debugging helper that lets you zoom in/out on a trace.</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: Warning: this tool has zero automated tests.</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">//:</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment">//: To try it out, first create an example trace:</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: mu --trace nqueens.mu</span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment">//: Then to browse the trace, which was stored in a file called 'last_run':</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment">//: mu browse-trace last_run</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">//:</span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment">//: You should now find yourself in a UI showing a subsequence of lines from</span>
<span id="L10" class="LineNr"> 10 </span><span class="Comment">//: the trace, each line starting with a numeric depth, and ending with a</span>
<span id="L11" class="LineNr"> 11 </span><span class="Comment">//: parenthetical count of trace lines hidden after it with greater depths.</span>
<span id="L12" class="LineNr"> 12 </span><span class="Comment">//:</span>
<span id="L13" class="LineNr"> 13 </span><span class="Comment">//: For example, this line:</span>
<span id="L14" class="LineNr"> 14 </span><span class="Comment">//: 2 app: line1 (30)</span>
<span id="L15" class="LineNr"> 15 </span><span class="Comment">//: indicates that it was logged with depth 2, and that 30 following lines</span>
<span id="L16" class="LineNr"> 16 </span><span class="Comment">//: have been hidden at a depth greater than 2.</span>
<span id="L17" class="LineNr"> 17 </span><span class="Comment">//:</span>
<span id="L18" class="LineNr"> 18 </span><span class="Comment">//: As an experiment, hidden counts of 1000 or more are in red to highlight</span>
<span id="L19" class="LineNr"> 19 </span><span class="Comment">//: where you might be particularly interested in expanding.</span>
<span id="L20" class="LineNr"> 20 </span><span class="Comment">//:</span>
<span id="L21" class="LineNr"> 21 </span><span class="Comment">//: The UI provides the following hotkeys:</span>
<span id="L22" class="LineNr"> 22 </span><span class="Comment">//:</span>
<span id="L23" class="LineNr"> 23 </span><span class="Comment">//: `q` or `ctrl-c`: Quit.</span>
<span id="L24" class="LineNr"> 24 </span><span class="Comment">//:</span>
<span id="L25" class="LineNr"> 25 </span><span class="Comment">//: `Enter`: 'Zoom into' this line. Expand some or all of the hidden lines</span>
<span id="L26" class="LineNr"> 26 </span><span class="Comment">//: at the next higher level, updating parenthetical counts of hidden lines.</span>
<span id="L27" class="LineNr"> 27 </span><span class="Comment">//:</span>
<span id="L28" class="LineNr"> 28 </span><span class="Comment">//: `Backspace`: 'Zoom out' on a line after zooming in, collapsing expanded</span>
<span id="L29" class="LineNr"> 29 </span><span class="Comment">//: lines below by some series of &lt;Enter&gt; commands.</span>
<span id="L30" class="LineNr"> 30 </span><span class="Comment">//:</span>
<span id="L31" class="LineNr"> 31 </span><span class="Comment">//: `j` or `down-arrow`: Move/scroll cursor down one line.</span>
<span id="L32" class="LineNr"> 32 </span><span class="Comment">//: `k` or `up-arrow`: Move/scroll cursor up one line.</span>
<span id="L33" class="LineNr"> 33 </span><span class="Comment">//: `J` or `ctrl-f` or `page-down`: Scroll cursor down one page.</span>
<span id="L34" class="LineNr"> 34 </span><span class="Comment">//: `K` or `ctrl-b` or `page-up`: Scroll cursor up one page.</span>
<span id="L35" class="LineNr"> 35 </span><span class="Comment">//: `h` or `left-arrow`: Scroll cursor left one character.</span>
<span id="L36" class="LineNr"> 36 </span><span class="Comment">//: `l` or `right-arrow`: Scroll cursor right one character.</span>
<span id="L37" class="LineNr"> 37 </span><span class="Comment">//: `H`: Scroll cursor left one screen-width.</span>
<span id="L38" class="LineNr"> 38 </span><span class="Comment">//: `L`: Scroll cursor right one screen-width.</span>
<span id="L39" class="LineNr"> 39 </span><span class="Comment">//:</span>
<span id="L40" class="LineNr"> 40 </span><span class="Comment">//: `g` or `home`: Move cursor to start of trace.</span>
<span id="L41" class="LineNr"> 41 </span><span class="Comment">//: `G` or `end`: Move cursor to end of trace.</span>
<span id="L42" class="LineNr"> 42 </span><span class="Comment">//:</span>
<span id="L43" class="LineNr"> 43 </span><span class="Comment">//: `t`: Move cursor to top line on screen.</span>
<span id="L44" class="LineNr"> 44 </span><span class="Comment">//: `c`: Move cursor to center line on screen.</span>
<span id="L45" class="LineNr"> 45 </span><span class="Comment">//: `b`: Move cursor to bottom line on screen.</span>
<span id="L46" class="LineNr"> 46 </span><span class="Comment">//: `T`: Scroll line at cursor to top of screen.</span>
<span id="L47" class="LineNr"> 47 </span><span class="Comment">//:</span>
<span id="L48" class="LineNr"> 48 </span><span class="Comment">//: `/`: Search forward for a pattern.</span>
<span id="L49" class="LineNr"> 49 </span><span class="Comment">//: '?': Search backward for a pattern.</span>
<span id="L50" class="LineNr"> 50 </span><span class="Comment">//: `n`: Repeat the previous '/' or '?'.</span>
<span id="L51" class="LineNr"> 51 </span><span class="Comment">//: `N`: Repeat the previous '/' or '?' in the opposite direction.</span>
<span id="L52" class="LineNr"> 52 </span><span class="Comment">//:</span>
<span id="L53" class="LineNr"> 53 </span><span class="Comment">//: After hitting `/`, a small editor on the bottom-most line supports the</span>
<span id="L54" class="LineNr"> 54 </span><span class="Comment">//: following hotkeys:</span>
<span id="L55" class="LineNr"> 55 </span><span class="Comment">//: ascii characters: add the key to the pattern.</span>
<span id="L56" class="LineNr"> 56 </span><span class="Comment">//: `Enter`: search for the pattern.</span>
<span id="L57" class="LineNr"> 57 </span><span class="Comment">//: `Esc` or `ctrl-c`: cancel the current search, setting the screen back</span>
<span id="L58" class="LineNr"> 58 </span><span class="Comment">//: to its state before the search.</span>
<span id="L59" class="LineNr"> 59 </span><span class="Comment">//: `left-arrow`: move cursor left.</span>
<span id="L60" class="LineNr"> 60 </span><span class="Comment">//: `right-arrow`: move cursor right.</span>
<span id="L61" class="LineNr"> 61 </span><span class="Comment">//: `ctrl-a` or `home`: move cursor to start of search pattern.</span>
<span id="L62" class="LineNr"> 62 </span><span class="Comment">//: `ctrl-e` or `end`: move cursor to end of search pattern.</span>
<span id="L63" class="LineNr"> 63 </span><span class="Comment">//: `ctrl-u`: clear search pattern before cursor</span>
<span id="L64" class="LineNr"> 64 </span><span class="Comment">//: `ctrl-k`: clear search pattern at and after cursor</span>
<span id="L65" class="LineNr"> 65 </span>
<span id="L66" class="LineNr"> 66 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L67" class="LineNr"> 67 </span>_BROWSE_TRACE<span class="Delimiter">,</span>
<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L69" class="LineNr"> 69 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;$browse-trace&quot;</span><span class="Delimiter">,</span> _BROWSE_TRACE<span class="Delimiter">);</span>
<span id="L70" class="LineNr"> 70 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L71" class="LineNr"> 71 </span><span class="Normal">case</span> _BROWSE_TRACE: <span class="Delimiter">{</span>
<span id="L72" class="LineNr"> 72 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L73" class="LineNr"> 73 </span><span class="Delimiter">}</span>
<span id="L74" class="LineNr"> 74 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L75" class="LineNr"> 75 </span><span class="Normal">case</span> _BROWSE_TRACE: <span class="Delimiter">{</span>
<span id="L76" class="LineNr"> 76 </span> <a href='100trace_browser.cc.html#L101'>start_trace_browser</a><span class="Delimiter">();</span>
<span id="L77" class="LineNr"> 77 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L78" class="LineNr"> 78 </span><span class="Delimiter">}</span>
<span id="L79" class="LineNr"> 79 </span>
<span id="L80" class="LineNr"> 80 </span><span class="Comment">//: browse a trace loaded from a file</span>
<span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(after &quot;Commandline Parsing&quot;)</span>
<span id="L82" class="LineNr"> 82 </span><span class="Normal">if</span> <span class="Delimiter">(</span>argc == <span class="Constant">3</span> &amp;&amp; <a href='001help.cc.html#L73'>is_equal</a><span class="Delimiter">(</span>argv[<span class="Constant">1</span>]<span class="Delimiter">,</span> <span class="Constant">&quot;browse-trace&quot;</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L83" class="LineNr"> 83 </span> <a href='100trace_browser.cc.html#L494'>load_trace</a><span class="Delimiter">(</span>argv[<span class="Constant">2</span>]<span class="Delimiter">);</span>
<span id="L84" class="LineNr"> 84 </span> <a href='100trace_browser.cc.html#L101'>start_trace_browser</a><span class="Delimiter">();</span>
<span id="L85" class="LineNr"> 85 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span>
<span id="L87" class="LineNr"> 87 </span>
<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
<span id="L89" class="LineNr"> 89 </span>set&lt;<span class="Normal">int</span>&gt; <span class="Special">Visible</span><span class="Delimiter">;</span>
<span id="L90" class="LineNr"> 90 </span><span class="Normal">int</span> <span class="Special">Top_of_screen</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L91" class="LineNr"> 91 </span><span class="Normal">int</span> <span class="Special">Left_of_screen</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L92" class="LineNr"> 92 </span><span class="Normal">int</span> <span class="Special">Last_printed_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L93" class="LineNr"> 93 </span>map&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt; <span class="Special">Trace_index</span><span class="Delimiter">;</span> <span class="Comment">// screen row -&gt; trace index</span>
<span id="L94" class="LineNr"> 94 </span>string <span class="Special">Current_search_pattern</span> = <span class="Constant">&quot;&quot;</span><span class="Delimiter">;</span>
<span id="L95" class="LineNr"> 95 </span><span class="Delimiter">:(before &quot;End Types&quot;)</span>
<span id="L96" class="LineNr"> 96 </span><span class="Normal">enum</span> <a href='100trace_browser.cc.html#L96'>search_direction</a> <span class="Delimiter">{</span> <a href='100trace_browser.cc.html#L96'>FORWARD</a><span class="Delimiter">,</span> <a href='100trace_browser.cc.html#L96'>BACKWARD</a> <span class="Delimiter">};</span>
<span id="L97" class="LineNr"> 97 </span><span class="Delimiter">:(before &quot;End Globals&quot;)</span>
<span id="L98" class="LineNr"> 98 </span><a href='100trace_browser.cc.html#L96'>search_direction</a> <span class="Special">Current_search_direction</span> = <a href='100trace_browser.cc.html#L96'>FORWARD</a><span class="Delimiter">;</span>
<span id="L99" class="LineNr"> 99 </span>
<span id="L100" class="LineNr">100 </span><span class="Delimiter">:(code)</span>
<span id="L101" class="LineNr">101 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L101'>start_trace_browser</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L102" class="LineNr">102 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Trace_stream</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L103" class="LineNr">103 </span> cerr &lt;&lt; <span class="Constant">&quot;computing min depth to display\n&quot;</span><span class="Delimiter">;</span>
<span id="L104" class="LineNr">104 </span> <span class="Normal">int</span> min_depth = <span class="Constant">9999</span><span class="Delimiter">;</span>
<span id="L105" class="LineNr">105 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L106" class="LineNr">106 </span> trace_line&amp; curr_line = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L107" class="LineNr">107 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &lt; min_depth<span class="Delimiter">)</span> min_depth = curr_line<span class="Delimiter">.</span>depth<span class="Delimiter">;</span>
<span id="L108" class="LineNr">108 </span> <span class="Delimiter">}</span>
<span id="L109" class="LineNr">109 </span> cerr &lt;&lt; <span class="Constant">&quot;min depth is &quot;</span> &lt;&lt; min_depth &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L110" class="LineNr">110 </span> cerr &lt;&lt; <span class="Constant">&quot;computing lines to display\n&quot;</span><span class="Delimiter">;</span>
<span id="L111" class="LineNr">111 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L112" class="LineNr">112 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>depth == min_depth<span class="Delimiter">)</span>
<span id="L113" class="LineNr">113 </span> <span class="Special">Visible</span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L114" class="LineNr">114 </span> <span class="Delimiter">}</span>
<span id="L115" class="LineNr">115 </span> tb_init<span class="Delimiter">();</span>
<span id="L116" class="LineNr">116 </span> tb_clear<span class="Delimiter">();</span>
<span id="L117" class="LineNr">117 </span> <span class="Special">Display_row</span> = <span class="Special">Display_column</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L118" class="LineNr">118 </span> <span class="Special">Top_of_screen</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L119" class="LineNr">119 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L120" class="LineNr">120 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L121" class="LineNr">121 </span> <a href='100trace_browser.cc.html#L417'>render</a><span class="Delimiter">();</span>
<span id="L122" class="LineNr">122 </span> <span class="Normal">int</span> key = <a href='100trace_browser.cc.html#L522'>read_key</a><span class="Delimiter">();</span>
<span id="L123" class="LineNr">123 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'q'</span> || key == <span class="Constant">'Q'</span> || key == TB_KEY_CTRL_C<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L124" class="LineNr">124 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'j'</span> || key == TB_KEY_ARROW_DOWN<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L125" class="LineNr">125 </span> <span class="Comment">// move cursor one line down</span>
<span id="L126" class="LineNr">126 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_row</span> &lt; <span class="Special">Last_printed_row</span><span class="Delimiter">)</span> ++<span class="Special">Display_row</span><span class="Delimiter">;</span>
<span id="L127" class="LineNr">127 </span> <span class="Delimiter">}</span>
<span id="L128" class="LineNr">128 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'k'</span> || key == TB_KEY_ARROW_UP<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L129" class="LineNr">129 </span> <span class="Comment">// move cursor one line up</span>
<span id="L130" class="LineNr">130 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Display_row</span> &gt; <span class="Constant">0</span><span class="Delimiter">)</span> --<span class="Special">Display_row</span><span class="Delimiter">;</span>
<span id="L131" class="LineNr">131 </span> <span class="Delimiter">}</span>
<span id="L132" class="LineNr">132 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'t'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L133" class="LineNr">133 </span> <span class="Comment">// move cursor to top of screen</span>
<span id="L134" class="LineNr">134 </span> <span class="Special">Display_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L135" class="LineNr">135 </span> <span class="Delimiter">}</span>
<span id="L136" class="LineNr">136 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'c'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L137" class="LineNr">137 </span> <span class="Comment">// move cursor to center of screen</span>
<span id="L138" class="LineNr">138 </span> <span class="Special">Display_row</span> = tb_height<span class="Delimiter">()</span>/<span class="Constant">2</span><span class="Delimiter">;</span>
<span id="L139" class="LineNr">139 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">))</span>
<span id="L140" class="LineNr">140 </span> --<span class="Special">Display_row</span><span class="Delimiter">;</span>
<span id="L141" class="LineNr">141 </span> <span class="Delimiter">}</span>
<span id="L142" class="LineNr">142 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'b'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L143" class="LineNr">143 </span> <span class="Comment">// move cursor to bottom of screen</span>
<span id="L144" class="LineNr">144 </span> <span class="Special">Display_row</span> = tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L145" class="LineNr">145 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">))</span>
<span id="L146" class="LineNr">146 </span> --<span class="Special">Display_row</span><span class="Delimiter">;</span>
<span id="L147" class="LineNr">147 </span> <span class="Delimiter">}</span>
<span id="L148" class="LineNr">148 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'T'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L149" class="LineNr">149 </span> <span class="Comment">// scroll line at cursor to top of screen</span>
<span id="L150" class="LineNr">150 </span> <span class="Special">Top_of_screen</span> = get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
<span id="L151" class="LineNr">151 </span> <span class="Special">Display_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L152" class="LineNr">152 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L153" class="LineNr">153 </span> <span class="Delimiter">}</span>
<span id="L154" class="LineNr">154 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'h'</span> || key == TB_KEY_ARROW_LEFT<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L155" class="LineNr">155 </span> <span class="Comment">// pan screen one character left</span>
<span id="L156" class="LineNr">156 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Left_of_screen</span> &gt; <span class="Constant">0</span><span class="Delimiter">)</span> --<span class="Special">Left_of_screen</span><span class="Delimiter">;</span>
<span id="L157" class="LineNr">157 </span> <span class="Delimiter">}</span>
<span id="L158" class="LineNr">158 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'l'</span> || key == TB_KEY_ARROW_RIGHT<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L159" class="LineNr">159 </span> <span class="Comment">// pan screen one character right</span>
<span id="L160" class="LineNr">160 </span> ++<span class="Special">Left_of_screen</span><span class="Delimiter">;</span>
<span id="L161" class="LineNr">161 </span> <span class="Delimiter">}</span>
<span id="L162" class="LineNr">162 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'H'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L163" class="LineNr">163 </span> <span class="Comment">// pan screen one screen-width left</span>
<span id="L164" class="LineNr">164 </span> <span class="Special">Left_of_screen</span> -= <span class="Delimiter">(</span>tb_width<span class="Delimiter">()</span> - <span class="Constant">5</span><span class="Delimiter">);</span>
<span id="L165" class="LineNr">165 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Left_of_screen</span> &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Special">Left_of_screen</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L166" class="LineNr">166 </span> <span class="Delimiter">}</span>
<span id="L167" class="LineNr">167 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'L'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L168" class="LineNr">168 </span> <span class="Comment">// pan screen one screen-width right</span>
<span id="L169" class="LineNr">169 </span> <span class="Special">Left_of_screen</span> += <span class="Delimiter">(</span>tb_width<span class="Delimiter">()</span> - <span class="Constant">5</span><span class="Delimiter">);</span>
<span id="L170" class="LineNr">170 </span> <span class="Delimiter">}</span>
<span id="L171" class="LineNr">171 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'J'</span> || key == TB_KEY_PGDN || key == TB_KEY_CTRL_F<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L172" class="LineNr">172 </span> <span class="Comment">// page-down</span>
<span id="L173" class="LineNr">173 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">.</span>find<span class="Delimiter">(</span>tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> != <span class="Special">Trace_index</span><span class="Delimiter">.</span><a href='003trace.cc.html#L225'>end</a><span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L174" class="LineNr">174 </span> <span class="Special">Top_of_screen</span> = get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> + <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L175" class="LineNr">175 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L176" class="LineNr">176 </span> <span class="Delimiter">}</span>
<span id="L177" class="LineNr">177 </span> <span class="Delimiter">}</span>
<span id="L178" class="LineNr">178 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'K'</span> || key == TB_KEY_PGUP || key == TB_KEY_CTRL_B<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L179" class="LineNr">179 </span> <span class="Comment">// page-up is more convoluted</span>
<span id="L180" class="LineNr">180 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> screen_row = tb_height<span class="Delimiter">();</span> screen_row &gt; <span class="Constant">0</span> &amp;&amp; <span class="Special">Top_of_screen</span> &gt; <span class="Constant">0</span><span class="Delimiter">;</span> --screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L181" class="LineNr">181 </span> --<span class="Special">Top_of_screen</span><span class="Delimiter">;</span>
<span id="L182" class="LineNr">182 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Top_of_screen</span> &lt;= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L183" class="LineNr">183 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Special">Top_of_screen</span> &gt; <span class="Constant">0</span> &amp;&amp; !contains_key<span class="Delimiter">(</span><span class="Special">Visible</span><span class="Delimiter">,</span> <span class="Special">Top_of_screen</span><span class="Delimiter">))</span>
<span id="L184" class="LineNr">184 </span> --<span class="Special">Top_of_screen</span><span class="Delimiter">;</span>
<span id="L185" class="LineNr">185 </span> <span class="Delimiter">}</span>
<span id="L186" class="LineNr">186 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Top_of_screen</span> &gt;= <span class="Constant">0</span><span class="Delimiter">)</span>
<span id="L187" class="LineNr">187 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L188" class="LineNr">188 </span> <span class="Delimiter">}</span>
<span id="L189" class="LineNr">189 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'g'</span> || key == TB_KEY_HOME<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L190" class="LineNr">190 </span> <span class="Special">Top_of_screen</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L191" class="LineNr">191 </span> <span class="Special">Last_printed_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L192" class="LineNr">192 </span> <span class="Special">Display_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L193" class="LineNr">193 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L194" class="LineNr">194 </span> <span class="Delimiter">}</span>
<span id="L195" class="LineNr">195 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'G'</span> || key == TB_KEY_END<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L196" class="LineNr">196 </span> <span class="Comment">// go to bottom of screen; largely like page-up, interestingly</span>
<span id="L197" class="LineNr">197 </span> <span class="Special">Top_of_screen</span> = <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L198" class="LineNr">198 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> screen_row = tb_height<span class="Delimiter">();</span> screen_row &gt; <span class="Constant">0</span> &amp;&amp; <span class="Special">Top_of_screen</span> &gt; <span class="Constant">0</span><span class="Delimiter">;</span> --screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L199" class="LineNr">199 </span> --<span class="Special">Top_of_screen</span><span class="Delimiter">;</span>
<span id="L200" class="LineNr">200 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Top_of_screen</span> &lt;= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L201" class="LineNr">201 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Special">Top_of_screen</span> &gt; <span class="Constant">0</span> &amp;&amp; !contains_key<span class="Delimiter">(</span><span class="Special">Visible</span><span class="Delimiter">,</span> <span class="Special">Top_of_screen</span><span class="Delimiter">))</span>
<span id="L202" class="LineNr">202 </span> --<span class="Special">Top_of_screen</span><span class="Delimiter">;</span>
<span id="L203" class="LineNr">203 </span> <span class="Delimiter">}</span>
<span id="L204" class="LineNr">204 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L205" class="LineNr">205 </span> <span class="Comment">// move cursor to bottom</span>
<span id="L206" class="LineNr">206 </span> <span class="Special">Display_row</span> = <span class="Special">Last_printed_row</span><span class="Delimiter">;</span>
<span id="L207" class="LineNr">207 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L208" class="LineNr">208 </span> <span class="Delimiter">}</span>
<span id="L209" class="LineNr">209 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_CARRIAGE_RETURN<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L210" class="LineNr">210 </span> <span class="Comment">// expand lines under current by one level</span>
<span id="L211" class="LineNr">211 </span> assert<span class="Delimiter">(</span><a href='001help.cc.html#L226'>contains_key</a><span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">));</span>
<span id="L212" class="LineNr">212 </span> <span class="Normal">int</span> start_index = get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
<span id="L213" class="LineNr">213 </span> <span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L214" class="LineNr">214 </span> <span class="Comment">// simultaneously compute end_index and min_depth</span>
<span id="L215" class="LineNr">215 </span> <span class="Normal">int</span> min_depth = <span class="Constant">9999</span><span class="Delimiter">;</span>
<span id="L216" class="LineNr">216 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L217" class="LineNr">217 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L226'>contains_key</a><span class="Delimiter">(</span><span class="Special">Visible</span><span class="Delimiter">,</span> index<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L218" class="LineNr">218 </span> trace_line&amp; curr_line = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L219" class="LineNr">219 </span> assert<span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &gt; <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>start_index<span class="Delimiter">).</span>depth<span class="Delimiter">);</span>
<span id="L220" class="LineNr">220 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &lt; min_depth<span class="Delimiter">)</span> min_depth = curr_line<span class="Delimiter">.</span>depth<span class="Delimiter">;</span>
<span id="L221" class="LineNr">221 </span> <span class="Delimiter">}</span>
<span id="L222" class="LineNr">222 </span> <span class="Normal">int</span> end_index = index<span class="Delimiter">;</span>
<span id="L223" class="LineNr">223 </span> <span class="Comment">// mark as visible all intervening indices at min_depth</span>
<span id="L224" class="LineNr">224 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>index = start_index<span class="Delimiter">;</span> index &lt; end_index<span class="Delimiter">;</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L225" class="LineNr">225 </span> trace_line&amp; curr_line = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L226" class="LineNr">226 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth == min_depth<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L227" class="LineNr">227 </span> <span class="Special">Visible</span><span class="Delimiter">.</span>insert<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L228" class="LineNr">228 </span> <span class="Delimiter">}</span>
<span id="L229" class="LineNr">229 </span> <span class="Delimiter">}</span>
<span id="L230" class="LineNr">230 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L231" class="LineNr">231 </span> <span class="Delimiter">}</span>
<span id="L232" class="LineNr">232 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_BACKSPACE || key == TB_KEY_BACKSPACE2<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L233" class="LineNr">233 </span> <span class="Comment">// collapse all lines under current</span>
<span id="L234" class="LineNr">234 </span> assert<span class="Delimiter">(</span><a href='001help.cc.html#L226'>contains_key</a><span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">));</span>
<span id="L235" class="LineNr">235 </span> <span class="Normal">int</span> start_index = get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
<span id="L236" class="LineNr">236 </span> <span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L237" class="LineNr">237 </span> <span class="Comment">// end_index is the next line at a depth same as or lower than start_index</span>
<span id="L238" class="LineNr">238 </span> <span class="Normal">int</span> initial_depth = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>start_index<span class="Delimiter">).</span>depth<span class="Delimiter">;</span>
<span id="L239" class="LineNr">239 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L240" class="LineNr">240 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Visible</span><span class="Delimiter">,</span> index<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L241" class="LineNr">241 </span> trace_line&amp; curr_line = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L242" class="LineNr">242 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>curr_line<span class="Delimiter">.</span>depth &lt;= initial_depth<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L243" class="LineNr">243 </span> <span class="Delimiter">}</span>
<span id="L244" class="LineNr">244 </span> <span class="Normal">int</span> end_index = index<span class="Delimiter">;</span>
<span id="L245" class="LineNr">245 </span> <span class="Comment">// mark as visible all intervening indices at min_depth</span>
<span id="L246" class="LineNr">246 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>index = start_index+<span class="Constant">1</span><span class="Delimiter">;</span> index &lt; end_index<span class="Delimiter">;</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L247" class="LineNr">247 </span> <span class="Special">Visible</span><span class="Delimiter">.</span>erase<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L248" class="LineNr">248 </span> <span class="Delimiter">}</span>
<span id="L249" class="LineNr">249 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L250" class="LineNr">250 </span> <span class="Delimiter">}</span>
<span id="L251" class="LineNr">251 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'/'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L252" class="LineNr">252 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='100trace_browser.cc.html#L271'>start_search_editor</a><span class="Delimiter">(</span><a href='100trace_browser.cc.html#L96'>FORWARD</a><span class="Delimiter">))</span>
<span id="L253" class="LineNr">253 </span> <a href='100trace_browser.cc.html#L360'>search</a><span class="Delimiter">(</span><span class="Special">Current_search_pattern</span><span class="Delimiter">,</span> <span class="Special">Current_search_direction</span><span class="Delimiter">);</span>
<span id="L254" class="LineNr">254 </span> <span class="Delimiter">}</span>
<span id="L255" class="LineNr">255 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'?'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L256" class="LineNr">256 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='100trace_browser.cc.html#L271'>start_search_editor</a><span class="Delimiter">(</span><a href='100trace_browser.cc.html#L96'>BACKWARD</a><span class="Delimiter">))</span>
<span id="L257" class="LineNr">257 </span> <a href='100trace_browser.cc.html#L360'>search</a><span class="Delimiter">(</span><span class="Special">Current_search_pattern</span><span class="Delimiter">,</span> <span class="Special">Current_search_direction</span><span class="Delimiter">);</span>
<span id="L258" class="LineNr">258 </span> <span class="Delimiter">}</span>
<span id="L259" class="LineNr">259 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'n'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L260" class="LineNr">260 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Current_search_pattern</span><span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
<span id="L261" class="LineNr">261 </span> <a href='100trace_browser.cc.html#L360'>search</a><span class="Delimiter">(</span><span class="Special">Current_search_pattern</span><span class="Delimiter">,</span> <span class="Special">Current_search_direction</span><span class="Delimiter">);</span>
<span id="L262" class="LineNr">262 </span> <span class="Delimiter">}</span>
<span id="L263" class="LineNr">263 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == <span class="Constant">'N'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L264" class="LineNr">264 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Current_search_pattern</span><span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
<span id="L265" class="LineNr">265 </span> <a href='100trace_browser.cc.html#L360'>search</a><span class="Delimiter">(</span><span class="Special">Current_search_pattern</span><span class="Delimiter">,</span> <a href='100trace_browser.cc.html#L365'>opposite</a><span class="Delimiter">(</span><span class="Special">Current_search_direction</span><span class="Delimiter">));</span>
<span id="L266" class="LineNr">266 </span> <span class="Delimiter">}</span>
<span id="L267" class="LineNr">267 </span> <span class="Delimiter">}</span>
<span id="L268" class="LineNr">268 </span> tb_shutdown<span class="Delimiter">();</span>
<span id="L269" class="LineNr">269 </span><span class="Delimiter">}</span>
<span id="L270" class="LineNr">270 </span>
<span id="L271" class="LineNr">271 </span><span class="Normal">bool</span> <a href='100trace_browser.cc.html#L271'>start_search_editor</a><span class="Delimiter">(</span><a href='100trace_browser.cc.html#L96'>search_direction</a> dir<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L272" class="LineNr">272 </span> <span class="Normal">const</span> <span class="Normal">int</span> bottom_screen_line = tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L273" class="LineNr">273 </span> <span class="Comment">// run a little editor just in the last line of the screen</span>
<span id="L274" class="LineNr">274 </span> <a href='100trace_browser.cc.html#L394'>clear_line</a><span class="Delimiter">(</span>bottom_screen_line<span class="Delimiter">);</span>
<span id="L275" class="LineNr">275 </span> <span class="Normal">int</span> col = <span class="Constant">0</span><span class="Delimiter">;</span> <span class="Comment">// screen column of cursor on bottom line. also used to update pattern.</span>
<span id="L276" class="LineNr">276 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L277" class="LineNr">277 </span> tb_print<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 id="L278" class="LineNr">278 </span> ++col<span class="Delimiter">;</span>
<span id="L279" class="LineNr">279 </span> string pattern<span class="Delimiter">;</span>
<span id="L280" class="LineNr">280 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L281" class="LineNr">281 </span> <span class="Normal">int</span> key = <a href='100trace_browser.cc.html#L522'>read_key</a><span class="Delimiter">();</span>
<span id="L282" class="LineNr">282 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_ENTER<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L283" class="LineNr">283 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!pattern<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L284" class="LineNr">284 </span> <span class="Special">Current_search_pattern</span> = pattern<span class="Delimiter">;</span>
<span id="L285" class="LineNr">285 </span> <span class="Special">Current_search_direction</span> = dir<span class="Delimiter">;</span>
<span id="L286" class="LineNr">286 </span> <span class="Delimiter">}</span>
<span id="L287" class="LineNr">287 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L288" class="LineNr">288 </span> <span class="Delimiter">}</span>
<span id="L289" class="LineNr">289 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_ESC || key == TB_KEY_CTRL_C<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L290" class="LineNr">290 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L291" class="LineNr">291 </span> <span class="Delimiter">}</span>
<span id="L292" class="LineNr">292 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_ARROW_LEFT<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L293" class="LineNr">293 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>col &gt; <span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L294" class="LineNr">294 </span> --col<span class="Delimiter">;</span>
<span id="L295" class="LineNr">295 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L296" class="LineNr">296 </span> <span class="Delimiter">}</span>
<span id="L297" class="LineNr">297 </span> <span class="Delimiter">}</span>
<span id="L298" class="LineNr">298 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_ARROW_RIGHT<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L299" class="LineNr">299 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>col-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span> &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L300" class="LineNr">300 </span> ++col<span class="Delimiter">;</span>
<span id="L301" class="LineNr">301 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L302" class="LineNr">302 </span> <span class="Delimiter">}</span>
<span id="L303" class="LineNr">303 </span> <span class="Delimiter">}</span>
<span id="L304" class="LineNr">304 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_HOME || key == TB_KEY_CTRL_A<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L305" class="LineNr">305 </span> col = <span class="Comment">/*</span><span class="Comment">skip slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L306" class="LineNr">306 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L307" class="LineNr">307 </span> <span class="Delimiter">}</span>
<span id="L308" class="LineNr">308 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_END || key == TB_KEY_CTRL_E<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L309" class="LineNr">309 </span> col = <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">)</span>+<span class="Comment">/*</span><span class="Comment">skip slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L310" class="LineNr">310 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L311" class="LineNr">311 </span> <span class="Delimiter">}</span>
<span id="L312" class="LineNr">312 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_BACKSPACE || key == TB_KEY_BACKSPACE2<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L313" class="LineNr">313 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>col &gt; <span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L314" class="LineNr">314 </span> assert<span class="Delimiter">(</span>col &lt;= <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L315" class="LineNr">315 </span> --col<span class="Delimiter">;</span>
<span id="L316" class="LineNr">316 </span> <span class="Comment">// update pattern</span>
<span id="L317" class="LineNr">317 </span> pattern<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>col-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">len</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L318" class="LineNr">318 </span> <span class="Comment">// update screen</span>
<span id="L319" class="LineNr">319 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L320" class="LineNr">320 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = col<span class="Delimiter">;</span> x &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">)</span>+<span class="Comment">/*</span><span class="Comment">skip slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> ++x<span class="Delimiter">)</span>
<span id="L321" class="LineNr">321 </span> tb_print<span class="Delimiter">(</span>pattern<span class="Delimiter">.</span>at<span class="Delimiter">(</span>x-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">),</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
<span id="L322" class="LineNr">322 </span> tb_print<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 id="L323" class="LineNr">323 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L324" class="LineNr">324 </span> <span class="Delimiter">}</span>
<span id="L325" class="LineNr">325 </span> <span class="Delimiter">}</span>
<span id="L326" class="LineNr">326 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_CTRL_K<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L327" class="LineNr">327 </span> <span class="Normal">int</span> old_pattern_size = <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">);</span>
<span id="L328" class="LineNr">328 </span> pattern<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>col-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">)</span> - <span class="Delimiter">(</span>col-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">));</span>
<span id="L329" class="LineNr">329 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L330" class="LineNr">330 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = col<span class="Delimiter">;</span> x &lt; old_pattern_size+<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> ++x<span class="Delimiter">)</span>
<span id="L331" class="LineNr">331 </span> tb_print<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 id="L332" class="LineNr">332 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L333" class="LineNr">333 </span> <span class="Delimiter">}</span>
<span id="L334" class="LineNr">334 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key == TB_KEY_CTRL_U<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L335" class="LineNr">335 </span> <span class="Normal">int</span> old_pattern_size = <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">);</span>
<span id="L336" class="LineNr">336 </span> pattern<span class="Delimiter">.</span>erase<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> col-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L337" class="LineNr">337 </span> col = <span class="Comment">/*</span><span class="Comment">skip slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L338" class="LineNr">338 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L339" class="LineNr">339 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = <span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> x &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">)</span>+<span class="Comment">/*</span><span class="Comment">skip slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> ++x<span class="Delimiter">)</span>
<span id="L340" class="LineNr">340 </span> tb_print<span class="Delimiter">(</span>pattern<span class="Delimiter">.</span>at<span class="Delimiter">(</span>x-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">),</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
<span id="L341" class="LineNr">341 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">)</span>+<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> x &lt; old_pattern_size+<span class="Comment">/*</span><span class="Comment">skip slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> ++x<span class="Delimiter">)</span>
<span id="L342" class="LineNr">342 </span> tb_print<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 id="L343" class="LineNr">343 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L344" class="LineNr">344 </span> <span class="Delimiter">}</span>
<span id="L345" class="LineNr">345 </span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>key &lt; <span class="Constant">128</span><span class="Delimiter">)</span> <span class="Delimiter">{</span> <span class="Comment">// ascii only</span>
<span id="L346" class="LineNr">346 </span> <span class="Comment">// update pattern</span>
<span id="L347" class="LineNr">347 </span> <span class="Normal">char</span> c = <span class="Normal">static_cast</span>&lt;<span class="Normal">char</span>&gt;<span class="Delimiter">(</span>key<span class="Delimiter">);</span>
<span id="L348" class="LineNr">348 </span> assert<span class="Delimiter">(</span>col-<span class="Constant">1</span> &gt;= <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L349" class="LineNr">349 </span> assert<span class="Delimiter">(</span>col-<span class="Constant">1</span> &lt;= <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">));</span>
<span id="L350" class="LineNr">350 </span> pattern<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>col-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">num</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> c<span class="Delimiter">);</span>
<span id="L351" class="LineNr">351 </span> <span class="Comment">// update screen</span>
<span id="L352" class="LineNr">352 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> x = col<span class="Delimiter">;</span> x &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>pattern<span class="Delimiter">)</span>+<span class="Comment">/*</span><span class="Comment">skip slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> ++x<span class="Delimiter">)</span>
<span id="L353" class="LineNr">353 </span> tb_print<span class="Delimiter">(</span>pattern<span class="Delimiter">.</span>at<span class="Delimiter">(</span>x-<span class="Comment">/*</span><span class="Comment">slash</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">),</span> TB_WHITE<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">);</span>
<span id="L354" class="LineNr">354 </span> ++col<span class="Delimiter">;</span>
<span id="L355" class="LineNr">355 </span> tb_set_cursor<span class="Delimiter">(</span>col<span class="Delimiter">,</span> bottom_screen_line<span class="Delimiter">);</span>
<span id="L356" class="LineNr">356 </span> <span class="Delimiter">}</span>
<span id="L357" class="LineNr">357 </span> <span class="Delimiter">}</span>
<span id="L358" class="LineNr">358 </span><span class="Delimiter">}</span>
<span id="L359" class="LineNr">359 </span>
<span id="L360" class="LineNr">360 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L360'>search</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; pat<span class="Delimiter">,</span> <a href='100trace_browser.cc.html#L96'>search_direction</a> dir<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L361" class="LineNr">361 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>dir == <a href='100trace_browser.cc.html#L96'>FORWARD</a><span class="Delimiter">)</span> <a href='100trace_browser.cc.html#L370'>search_next</a><span class="Delimiter">(</span>pat<span class="Delimiter">);</span>
<span id="L362" class="LineNr">362 </span> <span class="Normal">else</span> <a href='100trace_browser.cc.html#L382'>search_previous</a><span class="Delimiter">(</span>pat<span class="Delimiter">);</span>
<span id="L363" class="LineNr">363 </span><span class="Delimiter">}</span>
<span id="L364" class="LineNr">364 </span>
<span id="L365" class="LineNr">365 </span><a href='100trace_browser.cc.html#L96'>search_direction</a> <a href='100trace_browser.cc.html#L365'>opposite</a><span class="Delimiter">(</span><a href='100trace_browser.cc.html#L96'>search_direction</a> dir<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L366" class="LineNr">366 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>dir == <a href='100trace_browser.cc.html#L96'>FORWARD</a><span class="Delimiter">)</span> <span class="Identifier">return</span> <a href='100trace_browser.cc.html#L96'>BACKWARD</a><span class="Delimiter">;</span>
<span id="L367" class="LineNr">367 </span> <span class="Normal">else</span> <span class="Identifier">return</span> <a href='100trace_browser.cc.html#L96'>FORWARD</a><span class="Delimiter">;</span>
<span id="L368" class="LineNr">368 </span><span class="Delimiter">}</span>
<span id="L369" class="LineNr">369 </span>
<span id="L370" class="LineNr">370 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L370'>search_next</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; pat<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L371" class="LineNr">371 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> trace_index = get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">)</span>+<span class="Constant">1</span><span class="Delimiter">;</span> trace_index &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++trace_index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L372" class="LineNr">372 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Visible</span><span class="Delimiter">,</span> trace_index<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L373" class="LineNr">373 </span> <span class="Normal">const</span> trace_line&amp; line = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>trace_index<span class="Delimiter">);</span>
<span id="L374" class="LineNr">374 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>line<span class="Delimiter">.</span>label<span class="Delimiter">.</span>find<span class="Delimiter">(</span>pat<span class="Delimiter">)</span> == string::npos &amp;&amp; line<span class="Delimiter">.</span>contents<span class="Delimiter">.</span>find<span class="Delimiter">(</span>pat<span class="Delimiter">)</span> == string::npos<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L375" class="LineNr">375 </span> <span class="Special">Top_of_screen</span> = trace_index<span class="Delimiter">;</span>
<span id="L376" class="LineNr">376 </span> <span class="Special">Display_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L377" class="LineNr">377 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L378" class="LineNr">378 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L379" class="LineNr">379 </span> <span class="Delimiter">}</span>
<span id="L380" class="LineNr">380 </span><span class="Delimiter">}</span>
<span id="L381" class="LineNr">381 </span>
<span id="L382" class="LineNr">382 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L382'>search_previous</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; pat<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L383" class="LineNr">383 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> trace_index = get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">)</span>-<span class="Constant">1</span><span class="Delimiter">;</span> trace_index &gt;= <span class="Constant">0</span><span class="Delimiter">;</span> --trace_index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L384" class="LineNr">384 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Visible</span><span class="Delimiter">,</span> trace_index<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L385" class="LineNr">385 </span> <span class="Normal">const</span> trace_line&amp; line = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>trace_index<span class="Delimiter">);</span>
<span id="L386" class="LineNr">386 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>line<span class="Delimiter">.</span>label<span class="Delimiter">.</span>find<span class="Delimiter">(</span>pat<span class="Delimiter">)</span> == string::npos &amp;&amp; line<span class="Delimiter">.</span>contents<span class="Delimiter">.</span>find<span class="Delimiter">(</span>pat<span class="Delimiter">)</span> == string::npos<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L387" class="LineNr">387 </span> <span class="Special">Top_of_screen</span> = trace_index<span class="Delimiter">;</span>
<span id="L388" class="LineNr">388 </span> <span class="Special">Display_row</span> = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L389" class="LineNr">389 </span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">();</span>
<span id="L390" class="LineNr">390 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L391" class="LineNr">391 </span> <span class="Delimiter">}</span>
<span id="L392" class="LineNr">392 </span><span class="Delimiter">}</span>
<span id="L393" class="LineNr">393 </span>
<span id="L394" class="LineNr">394 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L394'>clear_line</a><span class="Delimiter">(</span><span class="Normal">int</span> screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L395" class="LineNr">395 </span> tb_set_cursor<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">);</span>
<span id="L396" class="LineNr">396 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> col = <span class="Constant">0</span><span class="Delimiter">;</span> col &lt; tb_width<span class="Delimiter">();</span> ++col<span class="Delimiter">)</span>
<span id="L397" class="LineNr">397 </span> tb_print<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 id="L398" class="LineNr">398 </span> tb_set_cursor<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">);</span>
<span id="L399" class="LineNr">399 </span><span class="Delimiter">}</span>
<span id="L400" class="LineNr">400 </span>
<span id="L401" class="LineNr">401 </span><span class="Comment">// update Trace_indices for each screen_row on the basis of Top_of_screen and Visible</span>
<span id="L402" class="LineNr">402 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L402'>refresh_screen_rows</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L403" class="LineNr">403 </span> <span class="Normal">int</span> screen_row = <span class="Constant">0</span><span class="Delimiter">,</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L404" class="LineNr">404 </span> <span class="Special">Trace_index</span><span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L405" class="LineNr">405 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>screen_row = <span class="Constant">0</span><span class="Delimiter">,</span> index = <span class="Special">Top_of_screen</span><span class="Delimiter">;</span> screen_row &lt; tb_height<span class="Delimiter">()</span> &amp;&amp; index &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">);</span> ++screen_row<span class="Delimiter">,</span> ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L406" class="LineNr">406 </span> <span class="Comment">// skip lines without depth for now</span>
<span id="L407" class="LineNr">407 </span> <span class="Normal">while</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Visible</span><span class="Delimiter">,</span> index<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L408" class="LineNr">408 </span> ++index<span class="Delimiter">;</span>
<span id="L409" class="LineNr">409 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>index &gt;= <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">))</span> <span class="Identifier">goto</span> done<span class="Delimiter">;</span>
<span id="L410" class="LineNr">410 </span> <span class="Delimiter">}</span>
<span id="L411" class="LineNr">411 </span> assert<span class="Delimiter">(</span>index &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">));</span>
<span id="L412" class="LineNr">412 </span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">,</span> index<span class="Delimiter">);</span>
<span id="L413" class="LineNr">413 </span> <span class="Delimiter">}</span>
<span id="L414" class="LineNr">414 </span><span class="Normal">done</span>:<span class="Delimiter">;</span>
<span id="L415" class="LineNr">415 </span><span class="Delimiter">}</span>
<span id="L416" class="LineNr">416 </span>
<span id="L417" class="LineNr">417 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L417'>render</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L418" class="LineNr">418 </span> <span class="Normal">int</span> screen_row = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L419" class="LineNr">419 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>screen_row = <span class="Constant">0</span><span class="Delimiter">;</span> screen_row &lt; tb_height<span class="Delimiter">();</span> ++screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L420" class="LineNr">420 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L421" class="LineNr">421 </span> trace_line&amp; curr_line = <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">));</span>
<span id="L422" class="LineNr">422 </span> ostringstream out<span class="Delimiter">;</span>
<span id="L423" class="LineNr">423 </span> out &lt;&lt; std::setw<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">)</span> &lt;&lt; curr_line<span class="Delimiter">.</span>depth &lt;&lt; <span class="Constant">' '</span> &lt;&lt; curr_line<span class="Delimiter">.</span>label &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; curr_line<span class="Delimiter">.</span>contents<span class="Delimiter">;</span>
<span id="L424" class="LineNr">424 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>screen_row &lt; tb_height<span class="Delimiter">()</span>-<span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L425" class="LineNr">425 </span> <span class="Normal">int</span> delta = <a href='100trace_browser.cc.html#L443'>lines_hidden</a><span class="Delimiter">(</span>screen_row<span class="Delimiter">);</span>
<span id="L426" class="LineNr">426 </span> <span class="Comment">// home-brew escape sequence for red</span>
<span id="L427" class="LineNr">427 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>delta &gt; <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L428" class="LineNr">428 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>delta &gt; <span class="Constant">999</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Normal">static_cast</span>&lt;<span class="Normal">char</span>&gt;<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L429" class="LineNr">429 </span> out &lt;&lt; <span class="Constant">&quot; (&quot;</span> &lt;&lt; delta &lt;&lt; <span class="Constant">&quot;)&quot;</span><span class="Delimiter">;</span>
<span id="L430" class="LineNr">430 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>delta &gt; <span class="Constant">999</span><span class="Delimiter">)</span> out &lt;&lt; <span class="Normal">static_cast</span>&lt;<span class="Normal">char</span>&gt;<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
<span id="L431" class="LineNr">431 </span> <span class="Delimiter">}</span>
<span id="L432" class="LineNr">432 </span> <span class="Delimiter">}</span>
<span id="L433" class="LineNr">433 </span> <a href='100trace_browser.cc.html#L451'>render_line</a><span class="Delimiter">(</span>screen_row<span class="Delimiter">,</span> out<span class="Delimiter">.</span>str<span class="Delimiter">(),</span> screen_row == <span class="Special">Display_row</span><span class="Delimiter">);</span>
<span id="L434" class="LineNr">434 </span> <span class="Delimiter">}</span>
<span id="L435" class="LineNr">435 </span> <span class="Comment">// clear rest of screen</span>
<span id="L436" class="LineNr">436 </span> <span class="Special">Last_printed_row</span> = screen_row-<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L437" class="LineNr">437 </span> <span class="Normal">for</span> <span class="Delimiter">(;</span> screen_row &lt; tb_height<span class="Delimiter">();</span> ++screen_row<span class="Delimiter">)</span>
<span id="L438" class="LineNr">438 </span> <a href='100trace_browser.cc.html#L451'>render_line</a><span class="Delimiter">(</span>screen_row<span class="Delimiter">,</span> <span class="Constant">&quot;~&quot;</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">cursor_line?</span><span class="Comment">*/</span><span class="Constant">false</span><span class="Delimiter">);</span>
<span id="L439" class="LineNr">439 </span> <span class="Comment">// move cursor back to display row at the end</span>
<span id="L440" class="LineNr">440 </span> tb_set_cursor<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> <span class="Special">Display_row</span><span class="Delimiter">);</span>
<span id="L441" class="LineNr">441 </span><span class="Delimiter">}</span>
<span id="L442" class="LineNr">442 </span>
<span id="L443" class="LineNr">443 </span><span class="Normal">int</span> <a href='100trace_browser.cc.html#L443'>lines_hidden</a><span class="Delimiter">(</span><span class="Normal">int</span> screen_row<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L444" class="LineNr">444 </span> assert<span class="Delimiter">(</span><a href='001help.cc.html#L226'>contains_key</a><span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">));</span>
<span id="L445" class="LineNr">445 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row+<span class="Constant">1</span><span class="Delimiter">))</span>
<span id="L446" class="LineNr">446 </span> <span class="Identifier">return</span> <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span><span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">)</span> - get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">);</span>
<span id="L447" class="LineNr">447 </span> <span class="Normal">else</span>
<span id="L448" class="LineNr">448 </span> <span class="Identifier">return</span> get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row+<span class="Constant">1</span><span class="Delimiter">)</span> - get<span class="Delimiter">(</span><span class="Special">Trace_index</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">);</span>
<span id="L449" class="LineNr">449 </span><span class="Delimiter">}</span>
<span id="L450" class="LineNr">450 </span>
<span id="L451" class="LineNr">451 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L451'>render_line</a><span class="Delimiter">(</span><span class="Normal">int</span> screen_row<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; s<span class="Delimiter">,</span> <span class="Normal">bool</span> cursor_line<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L452" class="LineNr">452 </span> <span class="Normal">int</span> col = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L453" class="LineNr">453 </span> <span class="Normal">int</span> color = TB_WHITE<span class="Delimiter">;</span>
<span id="L454" class="LineNr">454 </span> <span class="Normal">int</span> background_color = cursor_line ? <span class="Comment">/*</span><span class="Comment">subtle grey</span><span class="Comment">*/</span><span class="Constant">240</span> : TB_BLACK<span class="Delimiter">;</span>
<span id="L455" class="LineNr">455 </span> vector&lt;pair&lt;<span class="Normal">size_t</span><span class="Delimiter">,</span> <span class="Normal">size_t</span>&gt; &gt; highlight_ranges = <a href='100trace_browser.cc.html#L472'>find_all_occurrences</a><span class="Delimiter">(</span>s<span class="Delimiter">,</span> <span class="Special">Current_search_pattern</span><span class="Delimiter">);</span>
<span id="L456" class="LineNr">456 </span> tb_set_cursor<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> screen_row<span class="Delimiter">);</span>
<span id="L457" class="LineNr">457 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>col = <span class="Constant">0</span><span class="Delimiter">;</span> col &lt; tb_width<span class="Delimiter">()</span> &amp;&amp; col+<span class="Special">Left_of_screen</span> &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">);</span> ++col<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L458" class="LineNr">458 </span> <span class="Normal">char</span> c = s<span class="Delimiter">.</span>at<span class="Delimiter">(</span>col+<span class="Special">Left_of_screen</span><span class="Delimiter">);</span> <span class="Comment">// todo: unicode</span>
<span id="L459" class="LineNr">459 </span> <span class="Normal">if</span> <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 id="L460" class="LineNr">460 </span> <span class="Comment">// escapes. hack: can't start a line with them.</span>
<span id="L461" class="LineNr">461 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\1'</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>
<span id="L462" class="LineNr">462 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="cSpecial">'\2'</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>
<span id="L463" class="LineNr">463 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='100trace_browser.cc.html#L485'>in_range</a><span class="Delimiter">(</span>highlight_ranges<span class="Delimiter">,</span> col+<span class="Special">Left_of_screen</span><span class="Delimiter">))</span>
<span id="L464" class="LineNr">464 </span> tb_print<span class="Delimiter">(</span>c<span class="Delimiter">,</span> TB_BLACK<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">yellow</span><span class="Comment">*/</span><span class="Constant">11</span><span class="Delimiter">);</span>
<span id="L465" class="LineNr">465 </span> <span class="Normal">else</span>
<span id="L466" class="LineNr">466 </span> tb_print<span class="Delimiter">(</span>c<span class="Delimiter">,</span> color<span class="Delimiter">,</span> background_color<span class="Delimiter">);</span>
<span id="L467" class="LineNr">467 </span> <span class="Delimiter">}</span>
<span id="L468" class="LineNr">468 </span> <span class="Normal">for</span> <span class="Delimiter">(;</span> col &lt; tb_width<span class="Delimiter">();</span> ++col<span class="Delimiter">)</span>
<span id="L469" class="LineNr">469 </span> tb_print<span class="Delimiter">(</span><span class="Constant">' '</span><span class="Delimiter">,</span> TB_WHITE<span class="Delimiter">,</span> background_color<span class="Delimiter">);</span>
<span id="L470" class="LineNr">470 </span><span class="Delimiter">}</span>
<span id="L471" class="LineNr">471 </span>
<span id="L472" class="LineNr">472 </span>vector&lt;pair&lt;<span class="Normal">size_t</span><span class="Delimiter">,</span> <span class="Normal">size_t</span>&gt; &gt; <a href='100trace_browser.cc.html#L472'>find_all_occurrences</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; s<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; pat<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L473" class="LineNr">473 </span> vector&lt;pair&lt;<span class="Normal">size_t</span><span class="Delimiter">,</span> <span class="Normal">size_t</span>&gt; &gt; result<span class="Delimiter">;</span>
<span id="L474" class="LineNr">474 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>pat<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L475" class="LineNr">475 </span> <span class="Normal">size_t</span> idx = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L476" class="LineNr">476 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L477" class="LineNr">477 </span> <span class="Normal">size_t</span> next_idx = s<span class="Delimiter">.</span>find<span class="Delimiter">(</span>pat<span class="Delimiter">,</span> idx<span class="Delimiter">);</span>
<span id="L478" class="LineNr">478 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>next_idx == string::npos<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L479" class="LineNr">479 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;<span class="Normal">size_t</span><span class="Delimiter">,</span> <span class="Normal">size_t</span>&gt;<span class="Delimiter">(</span>next_idx<span class="Delimiter">,</span> next_idx+SIZE<span class="Delimiter">(</span>pat<span class="Delimiter">)));</span>
<span id="L480" class="LineNr">480 </span> idx = next_idx+SIZE<span class="Delimiter">(</span>pat<span class="Delimiter">);</span>
<span id="L481" class="LineNr">481 </span> <span class="Delimiter">}</span>
<span id="L482" class="LineNr">482 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L483" class="LineNr">483 </span><span class="Delimiter">}</span>
<span id="L484" class="LineNr">484 </span>
<span id="L485" class="LineNr">485 </span><span class="Normal">bool</span> <a href='100trace_browser.cc.html#L485'>in_range</a><span class="Delimiter">(</span><span class="Normal">const</span> vector&lt;pair&lt;<span class="Normal">size_t</span><span class="Delimiter">,</span> <span class="Normal">size_t</span>&gt; &gt;&amp; highlight_ranges<span class="Delimiter">,</span> <span class="Normal">size_t</span> idx<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L486" class="LineNr">486 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>highlight_ranges<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L487" class="LineNr">487 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>idx &gt;= highlight_ranges<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>first &amp;&amp; idx &lt; highlight_ranges<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second<span class="Delimiter">)</span>
<span id="L488" class="LineNr">488 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L489" class="LineNr">489 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>idx &lt; highlight_ranges<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>second<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L490" class="LineNr">490 </span> <span class="Delimiter">}</span>
<span id="L491" class="LineNr">491 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L492" class="LineNr">492 </span><span class="Delimiter">}</span>
<span id="L493" class="LineNr">493 </span>
<span id="L494" class="LineNr">494 </span><span class="Normal">void</span> <a href='100trace_browser.cc.html#L494'>load_trace</a><span class="Delimiter">(</span><span class="Normal">const</span> <span class="Normal">char</span>* filename<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L495" class="LineNr">495 </span> ifstream tin<span class="Delimiter">(</span>filename<span class="Delimiter">);</span>
<span id="L496" class="LineNr">496 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!tin<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L497" class="LineNr">497 </span> cerr &lt;&lt; <span class="Constant">&quot;no such file: &quot;</span> &lt;&lt; filename &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L498" class="LineNr">498 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L499" class="LineNr">499 </span> <span class="Delimiter">}</span>
<span id="L500" class="LineNr">500 </span> <span class="Special">Trace_stream</span> = <span class="Normal">new</span> trace_stream<span class="Delimiter">;</span>
<span id="L501" class="LineNr">501 </span> <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L239'>has_data</a><span class="Delimiter">(</span>tin<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L502" class="LineNr">502 </span> tin &gt;&gt; std::noskipws<span class="Delimiter">;</span>
<span id="L503" class="LineNr">503 </span> skip_whitespace_but_not_newline<span class="Delimiter">(</span>tin<span class="Delimiter">);</span>
<span id="L504" class="LineNr">504 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!isdigit<span class="Delimiter">(</span>tin<span class="Delimiter">.</span>peek<span class="Delimiter">()))</span> <span class="Delimiter">{</span>
<span id="L505" class="LineNr">505 </span> string dummy<span class="Delimiter">;</span>
<span id="L506" class="LineNr">506 </span> getline<span class="Delimiter">(</span>tin<span class="Delimiter">,</span> dummy<span class="Delimiter">);</span>
<span id="L507" class="LineNr">507 </span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L508" class="LineNr">508 </span> <span class="Delimiter">}</span>
<span id="L509" class="LineNr">509 </span> tin &gt;&gt; std::skipws<span class="Delimiter">;</span>
<span id="L510" class="LineNr">510 </span> <span class="Normal">int</span> depth<span class="Delimiter">;</span>
<span id="L511" class="LineNr">511 </span> tin &gt;&gt; depth<span class="Delimiter">;</span>
<span id="L512" class="LineNr">512 </span> string label<span class="Delimiter">;</span>
<span id="L513" class="LineNr">513 </span> tin &gt;&gt; label<span class="Delimiter">;</span>
<span id="L514" class="LineNr">514 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>*--label<span class="Delimiter">.</span><a href='003trace.cc.html#L225'>end</a><span class="Delimiter">()</span> == <span class="Constant">':'</span><span class="Delimiter">)</span> label<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>--label<span class="Delimiter">.</span><a href='003trace.cc.html#L225'>end</a><span class="Delimiter">());</span>
<span id="L515" class="LineNr">515 </span> string line<span class="Delimiter">;</span>
<span id="L516" class="LineNr">516 </span> getline<span class="Delimiter">(</span>tin<span class="Delimiter">,</span> line<span class="Delimiter">);</span>
<span id="L517" class="LineNr">517 </span> <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>trace_line<span class="Delimiter">(</span>depth<span class="Delimiter">,</span> label<span class="Delimiter">,</span> line<span class="Delimiter">));</span>
<span id="L518" class="LineNr">518 </span> <span class="Delimiter">}</span>
<span id="L519" class="LineNr">519 </span> cerr &lt;&lt; <span class="Constant">&quot;lines read: &quot;</span> &lt;&lt; <span class="Special">Trace_stream</span><span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>size<span class="Delimiter">()</span> &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span id="L520" class="LineNr">520 </span><span class="Delimiter">}</span>
<span id="L521" class="LineNr">521 </span>
<span id="L522" class="LineNr">522 </span><span class="Normal">int</span> <a href='100trace_browser.cc.html#L522'>read_key</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L523" class="LineNr">523 </span> tb_event event<span class="Delimiter">;</span>
<span id="L524" class="LineNr">524 </span> <span class="Normal">do</span> <span class="Delimiter">{</span>
<span id="L525" class="LineNr">525 </span> tb_poll_event<span class="Delimiter">(</span>&amp;event<span class="Delimiter">);</span>
<span id="L526" class="LineNr">526 </span> <span class="Delimiter">}</span> <span class="Normal">while</span> <span class="Delimiter">(</span>event<span class="Delimiter">.</span>type != TB_EVENT_KEY<span class="Delimiter">);</span>
<span id="L527" class="LineNr">527 </span> <span class="Identifier">return</span> event<span class="Delimiter">.</span>key ? event<span class="Delimiter">.</span>key : event<span class="Delimiter">.</span>ch<span class="Delimiter">;</span>
<span id="L528" class="LineNr">528 </span><span class="Delimiter">}</span>
</pre>
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