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PO"En dash" being garbled during http response handling or text manipulation
 

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  1. PO"En dash" being garbled during http response handling or text manipulation
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    <p>I'm writing code to work with text from Wikipedia and am having issues with en dashes being garbled. I haven't worked with en dashes or other non-standard characters before (non-standard to me being character that don't appear on my keyboard ;), so I'm not sure where to point the finger at what I'm doing wrong. Here's what is happening, along with code snippets.....</p> <p>I send a request to Wikipedia (I'm using the Apache HttpComponents client API for communicating with Wikipedia) for the contents of an article and save it in a String:</p> <pre><code>DefaultHttpClient client = new DefaultHttpClient(); HttpGet queryRequest = new HttpGet(query); // query is the URL for retrieving the article contents. ResponseHandler&lt;String&gt; responseHandler = new BasicResponseHandler(); String responseBody = client.execute(queryRequest, responseHandler); </code></pre> <p>At this point if I were to send "responseBody" to System.out, en dashes are displayed in my Eclipse console as '?'. This might just be an Eclipse console display issue so I'll move on.</p> <p>I manipulate the text, ignoring the en dashes, and then send the text back to Wikipedia. </p> <pre><code>List&lt;NameValuePair&gt; postParams = new ArrayList&lt;NameValuePair&gt;(); postParams.add(new BasicNameValuePair("text", content); // content is a String with the article text UrlEncodedFormEntity entity = new UrlEncodedFormEntity(postParams, "UTF-8"); HttpPost queryRequest = new HttpPost(url); // url is the basic URL for the Wikipedia api queryRequest.setEntity(entity); queryRequest.addHeader("Content-Type", "application/x-www-form-urlencoded"); ResponseHandler&lt;String&gt; responseHandler = new BasicResponseHandler(); String responseBody = client.execute(queryRequest, responseHandler); </code></pre> <p>When the text, now uploaded to Wikipedia, is displayed in a web browser what was en dashes before are now displayed as '?' in a box (unknown character?). Therefore, somewhere I am inadvertently changing or miscoding the en dashes, but I'm not sure exactly where. </p> <p>Can someone point me in the right direction?</p>
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    1. COThe Eclipse console is usually pretty good at getting the encoding right, so I suspect the String is already mangled.
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    2. COI am assuming the Wikipedia servers are sending the correct encoding, so it comes down to my handling of what I am receiving. I've been thinking this is the case but I wasn't totally sure. I guess I need to read up more on the ResponseHandler (and not just copy from the Apache tutorial).
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    3. COIf you haven't read http://www.joelonsoftware.com/articles/Unicode.html, read it first. It's unusual that the HttpClient library isn't getting it right though, since your code looks correct.
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