I'm trying to extract Names from a HTML Response using a RegEx. So far I'm able to do so except I'm getting more than I need, I want to NOT match specific strings such as "Date" or "Today".
Here is my regex:
<li class="rcbItem">([^:()]{1,20})<\/li>
And here is a portion of the HTML response against which I'm running the pattern:
<div class="rcbSlide" style="z-index:6000;">
<div id="ctl07_ddInspector_DropDown" class="RadComboBoxDropDown RadComboBoxDropDown_Default " style="float:left;display:none;">
<div class="rcbScroll rcbWidth" style="width:100%;">
<ul class="rcbList" style="list-style:none;margin:0;padding:0;zoom:1;">
<li class="rcbItem">...Default Inspector (if any)</li>
<li class="rcbItem">Andy Schene</li>
<li class="rcbItem">gilberto hubner</li>
<li class="rcbItem">Jim Tinner</li>
<li class="rcbItem">Kenneth Donovan</li>
<li class="rcbItem">RENTAL REG INSPECTORS</li>
<li class="rcbItem">Rob Barker</li>
<li class="rcbItem">Robert Costello</li>
<li class="rcbItem">Ryan BalFour</li>
<li class="rcbItem">Sean Angeley</li>
<li class="rcbItem">Krissy King</li>
</ul>
</div>
</div>
</div>
<input id="ctl07_ddInspector_ClientState" name="ctl07_ddInspector_ClientState" type="hidden" />
</div>
<span id="ctl07_lblInspector" class="pnlData"/>
</td>
</tr>
<tr>
<td>
<span id="ctl07_lblSetDefaultLabel" class="pnlLabelLight">Set Default</span>
</td>
<td>
<div id="ctl07_ddSetDefault" class="RadComboBox RadComboBox_Default pnlDD" style="width:175px;">
<table summary="combobox" border="0" style="border-width:0;border-collapse:collapse;table-layout:fixed;width:100%">
<tr class="rcbReadOnly">
<td class="rcbInputCell rcbInputCellLeft" style="margin-top:-1px;margin-bottom:-1px;width:100%;">
<input name="ctl07$ddSetDefault" type="text" class="rcbInput radPreventDecorate" id="ctl07_ddSetDefault_Input" value="Next Day (Default)" style="display: block;" readonly="readonly" />
</td>
<td class="rcbArrowCell rcbArrowCellRight" style="margin-top:-1px;margin-bottom:-1px;">
<a id="ctl07_ddSetDefault_Arrow" style="overflow: hidden;display: block;position: relative;outline: none;">select</a>
</td>
</tr>
</table>
<div class="rcbSlide" style="z-index:6000;">
<div id="ctl07_ddSetDefault_DropDown" class="RadComboBoxDropDown RadComboBoxDropDown_Default " style="float:left;display:none;">
<div class="rcbScroll rcbWidth" style="width:100%;">
<ul class="rcbList" style="list-style:none;margin:0;padding:0;zoom:1;">
<li class="rcbItem">Next Day (Default)</li>
<li class="rcbItem">Today</li>
<li class="rcbItem">Specified Date</li>
<li class="rcbItem">Next Available (Insp Cap)</li>
<li class="rcbItem">No Specified Date</li>
</ul>
</div>
</div>
</div>
I'm aware of negative lookaheads and this other post: Regex that matches a pattern and doesn't match specific words . But I can't make that work for me. The following still brings back the unwanted matches:
<li class="rcbItem">((?!Date$)[^:()]{1,20})<\/li>
Date$
because the $
means "This is the very end of the string." </li>
, you want to put your negative lookaround right there, not earlier. <
in the middle of your ?!
) This ends up looking like:
<li class="rcbItem">([^:()]{1,20})(?<!Date)<\/li>
If you're also trying to remove "Today" entries, then make it Today|Date
:
<li class="rcbItem">([^:()]{1,20})(?<!Today|Date)<\/li>
PS: Do you really need to check for all that whitespace at the beginning?
As the location of 'Date' or 'Today' is not fixed, so here is my suggestion:
string[] filter = {"date","today"};
var result = Regex.Matches(yourhtml,"(?i) <li class=\"rcbItem\">([^:()]{1,20})<\/li>")
.Cast<Match>()
.Where(m=>!filter.Any(f=>m.Groups[1].Value.ToLower().Contains(f)));
You cannot use the $
because it indicates the end of the entire string.
Try this one:
<li class="rcbItem">((?!(.)*(Date|Today))[^:()]{1,20})<\/li>
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