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POHpple in Objective-C can't find a particular object (XML/HTML Parser)
 

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  1. POHpple in Objective-C can't find a particular object (XML/HTML Parser)
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    <p>For those veterans who haven't tried Hpple, it's great. It uses Xpath for searching through HTML/XML documents. It gets the job done and it's easy enough for a newbie like me to understand. However, I'm having trouble. </p> <p>I have this chunk of HTML:</p> <pre><code> &lt;ul class="challengesList dailyChallengesList"&gt; &lt;li&gt; &lt;div class="corner topLeft"&gt;&lt;/div&gt; &lt;img id="ctl00_mainContent_dailyChallengesRepeater_ctl00_challengeImage" title="Gunslinger" src="/images/reachstats/challenges/0.png" alt="Gunslinger" style="border-width:0px;"&gt; &lt;div class="info"&gt; &lt;div class="rFloat"&gt; &lt;p id="ctl00_mainContent_dailyChallengesRepeater_ctl00_challengeExpiration" class="timeDisplay dailyExpirationCountdown"&gt;&lt;span&gt;0d&lt;/span&gt;&lt;span&gt;19h&lt;/span&gt;&lt;span&gt;9m&lt;/span&gt;&lt;span class="seconds"&gt;37s&lt;/span&gt;&lt;/p&gt; &lt;p&gt;1500cR&lt;/p&gt; &lt;/div&gt; &lt;h5&gt;Gunslinger&lt;/h5&gt; &lt;p class="description"&gt;Kill 150 enemies in multiplayer Matchmaking.&lt;/p&gt; &lt;div class="reward"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl00_progressBox" class="barContainer"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl00_progressBar" class="bar" style="width:21%;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt; &lt;p&gt;31/150&lt;/p&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class="clear"&gt;&lt;/div&gt; &lt;/li&gt; &lt;li&gt; &lt;div class="corner topLeft"&gt;&lt;/div&gt; &lt;img id="ctl00_mainContent_dailyChallengesRepeater_ctl01_challengeImage" title="A Great Friend" src="/images/reachstats/challenges/0.png" alt="A Great Friend" style="border-width:0px;"&gt; &lt;div class="info"&gt; &lt;div class="rFloat"&gt; &lt;p id="ctl00_mainContent_dailyChallengesRepeater_ctl01_challengeExpiration" class="timeDisplay dailyExpirationCountdown"&gt;&lt;span&gt;0d&lt;/span&gt;&lt;span&gt;19h&lt;/span&gt;&lt;span&gt;9m&lt;/span&gt;&lt;span class="seconds"&gt;37s&lt;/span&gt;&lt;/p&gt; &lt;p&gt;1400cR&lt;/p&gt; &lt;/div&gt; &lt;h5&gt;A Great Friend&lt;/h5&gt; &lt;p class="description"&gt;Earn 15 assists today in multiplayer Matchmaking.&lt;/p&gt; &lt;div class="reward"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl01_progressBox" class="barContainer"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl01_progressBar" class="bar" style="width:40%;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt; &lt;p&gt;6/15&lt;/p&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class="clear"&gt;&lt;/div&gt; &lt;/li&gt; &lt;li&gt; &lt;div class="corner topLeft"&gt;&lt;/div&gt; &lt;img id="ctl00_mainContent_dailyChallengesRepeater_ctl02_challengeImage" title="Cannon Fodder" src="/images/reachstats/challenges/2.png" alt="Cannon Fodder" style="border-width:0px;"&gt; &lt;div class="info"&gt; &lt;div class="rFloat"&gt; &lt;p id="ctl00_mainContent_dailyChallengesRepeater_ctl02_challengeExpiration" class="timeDisplay dailyExpirationCountdown"&gt;&lt;span&gt;0d&lt;/span&gt;&lt;span&gt;19h&lt;/span&gt;&lt;span&gt;9m&lt;/span&gt;&lt;span class="seconds"&gt;37s&lt;/span&gt;&lt;/p&gt; &lt;p&gt;1000cR&lt;/p&gt; &lt;/div&gt; &lt;h5&gt;Cannon Fodder&lt;/h5&gt; &lt;p class="description"&gt;Kill 50 infantry-class foes in the Campaign today.&lt;/p&gt; &lt;div class="reward"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl02_progressBox" class="barContainer"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl02_progressBar" class="bar" style="width:0%;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt; &lt;p&gt;0/50&lt;/p&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class="clear"&gt;&lt;/div&gt; &lt;/li&gt; &lt;li&gt; &lt;div class="corner topLeft"&gt;&lt;/div&gt; &lt;img id="ctl00_mainContent_dailyChallengesRepeater_ctl03_challengeImage" title="Heroic Demon" src="/images/reachstats/challenges/3.png" alt="Heroic Demon" style="border-width:0px;"&gt; &lt;div class="info"&gt; &lt;div class="rFloat"&gt; &lt;p id="ctl00_mainContent_dailyChallengesRepeater_ctl03_challengeExpiration" class="timeDisplay dailyExpirationCountdown"&gt;&lt;span&gt;0d&lt;/span&gt;&lt;span&gt;19h&lt;/span&gt;&lt;span&gt;9m&lt;/span&gt;&lt;span class="seconds"&gt;37s&lt;/span&gt;&lt;/p&gt; &lt;p&gt;1500cR&lt;/p&gt; &lt;/div&gt; &lt;h5&gt;Heroic Demon&lt;/h5&gt; &lt;p class="description"&gt;Kill 30 Elites in Firefight Matchmaking on Heroic or harder.&lt;/p&gt; &lt;div class="reward"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl03_progressBox" class="barContainer"&gt; &lt;div id="ctl00_mainContent_dailyChallengesRepeater_ctl03_progressBar" class="bar" style="width:0%;"&gt;&lt;span&gt;&lt;/span&gt;&lt;/div&gt; &lt;p&gt;0/30&lt;/p&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;div class="clear"&gt;&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; </code></pre> <p>The nutty part is, I cannot get Hpple to "see" the <code>&lt;div class="reward"&gt;</code>. I'm using the following to find it: </p> <pre><code>NSArray * rawProgress = [doc search:@"//ul[@class='challengesList'] /li/div[@class='info'] /div[@class='reward']/p"]; </code></pre> <p>This always returns an empty array. It's driving me nuts, as the same kind of thing worked for all of the other elements in this project...</p> <p>Any help would be appreciated :)</p> <p><strong>EDIT</strong></p> <p>This works: </p> <pre><code>NSArray * rawDescriptions = [doc search:@"//ul[@class='challengesList'] /li/div[@class='info'] /p[@class='description']"]; </code></pre> <p>This doesn't:</p> <pre><code>NSArray * rawProgress = [doc search:@"//ul[@class='challengesList'] /li/div[@class='info'] /div[@class='reward'] /div[@id]//p"]; </code></pre> <p>Furthermore, trying to list the child nodes of rFloat or reward produces a crash :(</p>
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    1. CODon't forget to put backquotes around the `<div ...>` element in the text of your question... fixed it for you.
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    2. COIt got unfixed by your edit. I'll leave it to you to put the backquotes in where needed, after 'cannot get Hpple to "see" the'.
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    3. COCan you post more of your input HTML? And triple-check that what you posted is really what's coming in as input?
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