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// Copyright (c) 2013 by Michael Dvorkin. All Rights Reserved.
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//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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package main
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import (
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"fmt"
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"bytes"
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"regexp"
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"strings"
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"text/template"
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)
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type Market struct {
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Dow map[string]string
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Nasdaq map[string]string
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Sp500 map[string]string
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Advances map[string]string
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Declines map[string]string
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Unchanged map[string]string
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Highs map[string]string
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Lows map[string]string
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}
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//-----------------------------------------------------------------------------
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func main() {
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html := `
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...
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<table id="yfimktsumm" border="0" cellspacing="0" cellpadding="0" class="rts" summary="Market Summary">
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<thead>
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<th class="first">Symbol</th>
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<th>Last</th>
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<th>Change</th>
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</thead>
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<tbody>
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<tr class="e">
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<td><a href="/q?s=%5EDJI">Dow</a></td><td class="idx">
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<span id="yfs_l10_^dji">15,300.34</span></td>
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<td class="cu"><span id="yfs_c10_^dji"><img width="10" height="14" style="margin-right:-2px;" border="0" src="http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png" class="pos_arrow" alt="Up"> <b style="color:#008800;">75.65</b></span><span id="yfs_p20_^dji"><b style="color:#008800;"> (0.50%)</b></span></td>
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</tr>
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<tr class="">
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<td><a href="/q?s=%5EIXIC">Nasdaq</a></td>
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<td class="idx"><span id="yfs_l10_^ixic">3,504.26</span></td>
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<td class="cu"><span id="yfs_c10_^ixic"><img width="10" height="14" style="margin-right:-2px;" border="0" src="http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png" class="pos_arrow" alt="Up"> <b style="color:#008800;">19.43</b></span><span id="yfs_p20_^ixic"><b style="color:#008800;"> (0.56%)</b></span></td>
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</tr>
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<tr class="e">
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<td><a href="/q?s=%5EGSPC">S&P 500</a></td>
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<td class="idx"><span id="yfs_l10_^gspc">1,652.32</span></td>
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<td class="cu"><span id="yfs_c10_^gspc"><img width="10" height="14" style="margin-right:-2px;" border="0" src="http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png" class="pos_arrow" alt="Up"> <b style="color:#008800;">11.86</b></span><span id="yfs_p20_^gspc"><b style="color:#008800;"> (0.72%)</b></span></td>
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</tr>
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<tr class="">
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<td><a href="/q?s=%5ETNX">10-Yr Bond</a></td>
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<td class="idx"><span id="yfs_l10_^tnx">2.63</span>%
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</td>
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<td class="idx"><span id="yfs_c10_^tnx"><img width="10" height="14" style="margin-right:-2px;" border="0" src="http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png" class="neg_arrow" alt="Down"> <b style="color:#cc0000;">0.02</b></span></td>
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</tr>
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<tr class="e">
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<td colspan="2"><a href="/q?s=%5ETV.N">NYSE Volume</a></td>
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<td class="idx"><span id="yfs_lt0_^tv.n">3,490,723,250.00</span></td>
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</tr>
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<tr class="">
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<td colspan="2"><a href="/q?s=%5ETV.O">Nasdaq Volume...</a></td>
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<td class="idx"><span id="yfs_lt0_^tv.o">1,594,900,625.00</span></td>
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</tr>
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</tbody>
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</table>
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<div id="ma">
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<strong>Indices:</strong> <a href="http://us.rd.yahoo.com/finance/finhome/usindices/*http://finance.yahoo.com/indices?e=dow_jones">US</a> - <a href="http://us.rd.yahoo.com/finance/finhome/worldindices/*http://finance.yahoo.com/intlindices?e=americas">World</a> | <a href="http://us.rd.yahoo.com/finance/finhome/mostactives/*http://finance.yahoo.com/actives?e=o">Most Actives</a>
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</div>
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</div>
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</div>
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<div class="tba"><h3>Advances & Declines</h3></div>
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<div class="ob">
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<table id="yfimktsumm" border="0" cellspacing="0" cellpadding="0" class="rts">
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<thead>
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<th class="first"> </th>
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<th>NYSE</th>
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<th>NASDAQ</th>
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</thead>
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<tbody>
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<tr class="e">
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<td class="first">Advances</td>
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<td align="right">2,992
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(72%)
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</td>
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<td align="right">1,445
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(57%)
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</td>
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</tr>
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<tr>
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<td class="first">Declines</td>
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<td align="right">1,040
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(25%)
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</td>
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<td align="right">950
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(38%)
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</td>
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</tr>
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<tr class="e">
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<td class="first">Unchanged</td>
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<td align="right">113
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(3%)
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</td>
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<td align="right">128
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(5%)
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</td>
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</tr>
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<tr>
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<td class="first">Up Vol*</td>
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<td align="right">2,582
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(74%)
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</td>
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<td align="right">950
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(60%)
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</td>
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</tr>
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<tr class="e">
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<td class="first">Down Vol*</td>
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<td align="right">863
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(25%)
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</td>
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<td align="right">625
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(39%)
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</td>
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</tr>
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<tr>
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<td class="first">Unch. Vol*</td>
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<td align="right">46
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(1%)
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</td>
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<td align="right">20
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(1%)
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</td>
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</tr>
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<tr class="e">
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<td class="first">New Hi's</td>
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<td align="right">350</td>
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<td align="right">314</td>
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</tr>
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<tr>
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<td class="first">New Lo's</td>
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<td align="right">117</td>
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<td align="right">19</td>
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</tr>
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</tbody>
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</table>
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...
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<table id="yfimktsumm" border="0" cellspacing="0" cellpadding="0" class="rts">
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<thead>
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<th class="first">NYSE</th>
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<th>LAST</th>
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<th>CHANGE</th>
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</thead>
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`
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html = `
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...
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<table id="yfimktsumm" border="0" cellspacing="0" cellpadding="0" class="rts" summary="Market Summary">
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<thead>
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<th class="first">Symbol</th>
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<th>Last</th>
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<th>Change</th>
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</thead>
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<tbody>
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<tr class="e">
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<td><a href="/q?s=%5EDJI">Dow</a></td>
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<td class="idx"><span id="yfs_l10_^dji">15,464.30</span></td>
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<td class="cu"><span id="yfs_c10_^dji"><img width="10" height="14" style="margin-right:-2px;" border="0" src="http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png" class="pos_arrow" alt="Up"> <b style="color:#008800;">3.38</b></span><span id="yfs_p20_^dji"><b style="color:#008800;"> (0.02%)</b></span></td>
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</tr>
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<tr class="">
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<td><a href="/q?s=%5EIXIC">Nasdaq</a></td>
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<td class="idx"><span id="yfs_l10_^ixic">3,600.08</span></td>
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<td class="cu"><span id="yfs_c10_^ixic"> <b style="color:#000000;">0.00</b></span><span id="yfs_p20_^ixic"><b style="color:#000000;"> (0.00%)</b></span></td>
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</tr>
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<tr class="e">
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<td><a href="/q?s=%5EGSPC">S&P 500</a></td>
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<td class="idx"><span id="yfs_l10_^gspc">1,680.19</span></td>
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<td class="cu"><span id="yfs_c10_^gspc"><img width="10" height="14" style="margin-right:-2px;" border="0" src="http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png" class="pos_arrow" alt="Up"> <b style="color:#008800;">5.17</b></span><span id="yfs_p20_^gspc"><b style="color:#008800;"> (0.31%)</b></span></td>
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</tr>
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<tr class="">
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<td><a href="/q?s=%5ETNX">10-Yr Bond</a></td>
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<td class="idx"><span id="yfs_l10_^tnx">2.60</span>%
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</td>
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<td class="idx"><span id="yfs_c10_^tnx"><img width="10" height="14" style="margin-right:-2px;" border="0" src="http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png" class="pos_arrow" alt="Up"> <b style="color:#008800;">0.03</b></span></td>
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</tr>
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<tr class="e">
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<td colspan="2"><a href="/q?s=%5ETV.N">NYSE Volume</a></td>
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<td class="idx"><span id="yfs_lt0_^tv.n">3,315,714,000.00</span></td>
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</tr>
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<tr class="">
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<td colspan="2"><a href="/q?s=%5ETV.O">Nasdaq Volume...</a></td>
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<td class="idx"><span id="yfs_lt0_^tv.o">1,578,376,875.00</span></td>
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</tr>
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</tbody>
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</table>
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<div id="ma">
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<strong>Indices:</strong> <a href="http://us.rd.yahoo.com/finance/finhome/usindices/*http://finance.yahoo.com/indices?e=dow_jones">US</a> - <a href="http://us.rd.yahoo.com/finance/finhome/worldindices/*http://finance.yahoo.com/intlindices?e=americas">World</a> | <a href="http://us.rd.yahoo.com/finance/finhome/mostactives/*http://finance.yahoo.com/actives?e=o">Most Actives</a>
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</div>
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</div>
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</div>
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<div class="tba"><h3>Advances & Declines</h3></div>
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<div class="ob">
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<table id="yfimktsumm" border="0" cellspacing="0" cellpadding="0" class="rts">
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<thead>
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<th class="first"> </th>
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<th>NYSE</th>
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<th>NASDAQ</th>
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</thead>
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<tbody>
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<tr class="e">
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<td class="first">Advances</td>
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<td align="right">1,962
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(48%)
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</td>
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<td align="right">1,322
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(53%)
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</td>
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</tr>
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<tr>
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<td class="first">Declines</td>
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<td align="right">2,029
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(49%)
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</td>
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<td align="right">1,068
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(43%)
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</td>
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</tr>
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<tr class="e">
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<td class="first">Unchanged</td>
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<td align="right">126
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(3%)
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</td>
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<td align="right">115
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(5%)
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</td>
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</tr>
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<tr>
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<td class="first">Up Vol*</td>
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<td align="right">1,822
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(55%)
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</td>
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<td align="right">918
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(58%)
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</td>
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</tr>
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<tr class="e">
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<td class="first">Down Vol*</td>
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<td align="right">1,417
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(43%)
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</td>
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<td align="right">636
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(40%)
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</td>
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</tr>
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<tr>
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<td class="first">Unch. Vol*</td>
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<td align="right">76
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(2%)
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</td>
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<td align="right">24
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(2%)
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</td>
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</tr>
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<tr class="e">
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<td class="first">New Hi's</td>
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<td align="right">355</td>
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<td align="right">337</td>
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</tr>
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<tr>
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<td class="first">New Lo's</td>
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<td align="right">110</td>
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<td align="right">14</td>
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</tr>
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</tbody>
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</table>
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<div id="advdec_ftr" class="clear">
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<div>
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<sup>*</sup>in millions</div>
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<div class="more"><a href="/m0">more...</a></div>
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</div>
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</div>
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<div id="yfitn_last">
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<div class="tba"><h3>Most Actives</h3></div>
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<div class="ob oblast clear">
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<table id="yfimktsumm" border="0" cellspacing="0" cellpadding="0" class="rts">
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<thead>
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...
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`
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start := strings.Index(html, `<table id="yfimktsumm"`)
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finish := strings.LastIndex(html, `<table id="yfimktsumm"`)
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html = strings.Replace(html[start:finish], "\n", "", -1)
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html = strings.Replace(html, "&", "&", -1)
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const any = `\s*<.+?>`
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const some = `<.+?`
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const space = `\s*`
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const color = `#([08c]{6});">\s*`
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const price = `([\d\.,]+)`
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const percent = `\(([\d\.,%]+)\)`
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regex := []string{
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"(Dow)", any, price, some, color, price, some, percent, any,
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"(Nasdaq)", any, price, some, color, price, some, percent, any,
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"(S&P 500)", any, price, some, color, price, some, percent, any,
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"(Advances)", any, price, space, percent, any, price, space, percent, any,
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"(Declines)", any, price, space, percent, any, price, space, percent, any,
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"(Unchanged)", any, price, space, percent, any, price, space, percent, any,
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"(New Hi's)", any, price, any, price, any,
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"(New Lo's)", any, price, any, price, any,
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}
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re := regexp.MustCompile(strings.Join(regex, ""))
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matches := re.FindAllStringSubmatch(html, -1)
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if len(matches) > 0 {
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fmt.Printf("%d matches\n", len(matches[0]))
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for i, str := range matches[0][1:] {
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fmt.Printf("%d) [%s]\n", i, str)
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}
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} else {
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println("No matches")
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}
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return
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m := Market{
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Dow: make(map[string]string),
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Nasdaq: make(map[string]string),
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Sp500: make(map[string]string),
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Advances: make(map[string]string),
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Declines: make(map[string]string),
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Unchanged: make(map[string]string),
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Highs: make(map[string]string),
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Lows: make(map[string]string),
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}
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m.Dow[`name`] = matches[0][1]
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m.Dow[`latest`] = matches[0][2]
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m.Dow[`change`] = matches[0][4]
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if matches[0][3] == "Up" {
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m.Dow[`change`] = "+" + matches[0][4]
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m.Dow[`percent`] = "+" + matches[0][5]
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} else {
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m.Dow[`change`] = "-" + matches[0][4]
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m.Dow[`percent`] = "-" + matches[0][5]
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}
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m.Nasdaq[`name`] = matches[0][6]
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m.Nasdaq[`latest`] = matches[0][7]
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if matches[0][8] == "Up" {
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m.Nasdaq[`change`] = "+" + matches[0][9]
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m.Nasdaq[`percent`] = "+" + matches[0][10]
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} else {
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m.Nasdaq[`change`] = "-" + matches[0][9]
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m.Nasdaq[`percent`] = "-" + matches[0][10]
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}
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m.Sp500[`name`] = matches[0][11]
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m.Sp500[`latest`] = matches[0][12]
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if matches[0][13] == "Up" {
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m.Sp500[`change`] = "+" + matches[0][14]
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m.Sp500[`percent`] = "+" + matches[0][15]
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} else {
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m.Sp500[`change`] = "-" + matches[0][14]
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m.Sp500[`percent`] = "-" + matches[0][15]
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}
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m.Advances[`name`] = matches[0][16]
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m.Advances[`nyse`] = matches[0][17]
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m.Advances[`nysep`] = matches[0][18]
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m.Advances[`nasdaq`] = matches[0][19]
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m.Advances[`nasdaqp`] = matches[0][20]
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m.Declines[`name`] = matches[0][21]
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m.Declines[`nyse`] = matches[0][22]
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m.Declines[`nysep`] = matches[0][23]
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m.Declines[`nasdaq`] = matches[0][24]
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m.Declines[`nasdaqp`] = matches[0][25]
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m.Unchanged[`name`] = matches[0][26]
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m.Unchanged[`nyse`] = matches[0][27]
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m.Unchanged[`nysep`] = matches[0][28]
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m.Unchanged[`nasdaq`] = matches[0][29]
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m.Unchanged[`nasdaqp`] = matches[0][30]
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m.Highs[`name`] = matches[0][31]
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m.Highs[`nyse`] = matches[0][32]
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m.Highs[`nasdaq`] = matches[0][33]
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m.Lows[`name`] = matches[0][34]
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m.Lows[`nyse`] = matches[0][35]
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m.Lows[`nasdaq`] = matches[0][36]
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fmt.Printf("%q\n", m)
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println(Format(m))
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}
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//-----------------------------------------------------------------------------
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func Format(m Market) string {
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markup := `{{.Dow.name}}: {{.Dow.change}} ({{.Dow.percent}}) at {{.Dow.latest}}, `
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markup += `{{.Sp500.name}}: {{.Sp500.change}} ({{.Sp500.percent}}) at {{.Sp500.latest}}, `
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markup += `{{.Nasdaq.name}}: {{.Nasdaq.change}} ({{.Nasdaq.percent}}) at {{.Nasdaq.latest}}`
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markup += "\n"
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markup += `{{.Advances.name}}: {{.Advances.nyse}} ({{.Advances.nysep}}) on NYSE and {{.Advances.nasdaq}} ({{.Advances.nasdaqp}}) on Nasdaq. `
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markup += `{{.Declines.name}}: {{.Declines.nyse}} ({{.Declines.nysep}}) on NYSE and {{.Declines.nasdaq}} ({{.Declines.nasdaqp}}) on Nasdaq`
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markup += "\n"
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markup += `New highs: {{.Highs.nyse}} on NYSE and {{.Highs.nasdaq}} on Nasdaq. `
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markup += `New lows: {{.Lows.nyse}} on NYSE and {{.Lows.nasdaq}} on Nasdaq.`
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template, err := template.New("screen").Parse(markup)
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if err != nil {
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panic(err)
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}
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buffer := new(bytes.Buffer)
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err = template.Execute(buffer, m)
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if err != nil {
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panic(err)
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}
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return buffer.String()
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}
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