html-parsing - w3toppers.com

Beautiful Soup and Table Scraping – lxml vs html parser

Short answer. If you already installed lxml, just use it. html.parser – BeautifulSoup(markup, “html.parser”) Advantages: Batteries included, Decent speed, Lenient (as of Python 2.7.3 and 3.2.) Disadvantages: Not very lenient (before Python 2.7.3 or 3.2.2) lxml – BeautifulSoup(markup, “lxml”) Advantages: Very fast, Lenient Disadvantages: External C dependency html5lib – BeautifulSoup(markup, “html5lib”) Advantages: Extremely lenient, Parses … Read more

What to do when a regular expression pattern doesn’t match anywhere in a string?

Oh Yes You Can Use Regexes to Parse HTML! For the task you are attempting, regexes are perfectly fine! It is true that most people underestimate the difficulty of parsing HTML with regular expressions and therefore do so poorly. But this is not some fundamental flaw related to computational theory. That silliness is parroted a … Read more

How to find/replace text in html while preserving html tags/structure

Use a DOM library, not regular expressions, when dealing with manipulating HTML: lxml: a parser, document, and HTML serializer. Also can use BeautifulSoup and html5lib for parsing. BeautifulSoup: a parser, document, and HTML serializer. html5lib: a parser. It has a serializer. ElementTree: a document object, and XML serializer cElementTree: a document object implemented as a … Read more

Simple libxml2 HTML parsing example, using Objective-c, Xcode, and HTMLparser.h

I used Ben Reeves’ HTML Parser to achieve what I wanted: NSError *error = nil; NSString *html = @”<ul>” “<li><input type=”image” name=”input1″ value=”string1value” /></li>” “<li><input type=”image” name=”input2″ value=”string2value” /></li>” “</ul>” “<span class=”spantext”><b>Hello World 1</b></span>” “<span class=”spantext”><b>Hello World 2</b></span>”; HTMLParser *parser = [[HTMLParser alloc] initWithString:html error:&error]; if (error) { NSLog(@”Error: %@”, error); return; } HTMLNode *bodyNode … Read more

ItextSharp Error on trying to parse html for pdf conversion

`HTMLWorker’ has been deprecated in favor of XMLWorker. Here is a working example tested with a snippet of HTML like you used above: StringReader html = new StringReader(@” <div style=”font-size: 18pt; font-weight: bold;”> Mouser Electronics <br />Authorized Distributor</div><br /> <br /> <div style=”font-size: 14pt;”>Click to View Pricing, Inventory, Delivery & Lifecycle Information: </div> <br /> … Read more

Convert html to plain text in VBA

Set a reference to “Microsoft HTML object library”. Function HtmlToText(sHTML) As String Dim oDoc As HTMLDocument Set oDoc = New HTMLDocument oDoc.body.innerHTML = sHTML HtmlToText = oDoc.body.innerText End Function Tim

How to get img/src or a/hrefs using Html Agility Pack?

The first example on the home page does something very similar, but consider: HtmlDocument doc = new HtmlDocument(); doc.Load(“file.htm”); // would need doc.LoadHtml(htmlSource) if it is not a file foreach(HtmlNode link in doc.DocumentElement.SelectNodes(“//a[@href”]) { string href = link[“href”].Value; // store href somewhere } So you can imagine that for img@src, just replace each a with … Read more

Speeding up beautifulsoup

Okay, you can really speed this up by: go down to the low-level – see what underlying requests are being made and simulate them let BeautifulSoup use lxml parser use SoupStrainer for parsing only relevant parts of a page Since this is ASP.NET generated form and due to it’s security features, things get a bit … Read more

Android ImageGetter images overlapping text

You could change your cointainer c (view) to a textView and then make your onPostExecute look like this: @Override protected void onPostExecute(Drawable result) { // set the correct bound according to the result from HTTP call Log.d(“height”,””+result.getIntrinsicHeight()); Log.d(“width”,””+result.getIntrinsicWidth()); urlDrawable.setBounds(0, 0, 0+result.getIntrinsicWidth(), 0+result.getIntrinsicHeight()); // change the reference of the current drawable to the result // from … Read more

CodeIgniter: A Class/Library to help get meta tags from a web page?

You should have a look at this class: PHP Simple HTML DOM it works this way: include(‘simple_html_dom.php’); $html = file_get_html(‘http://www.codeigniter.com/’); echo $html->find(‘title’, 0)->innertext; // get <title> echo “<pre>”; foreach($html->find(‘meta’) as $element) echo $element->name . ” : ” . $element->content . ‘<br>’; //prints every META tag echo “</pre>”;