Searcharoo 5 runs in Medium Trust and refactored FilterDocument into DownloadDocument and its subclasses for indexing Office files. Back in October '08, SMeledath asked how the description shown in the results could be taken from the page itself I proposed an approach but did not have time to implement - until now. In previous versions of Searcharoo, the index contains only a 'link' between each word and the URL of documents that contain it. The number of times that word appears or where that word appears is lost during the indexing process see version 5 for discussion of the old catalog structure.
This made it impossible to display an 'excerpt' on the results page since the index only stores the first characters or the META description tag - mainly because it was much easier to program.
Version 7 significantly alters the 'structure' of the index to store more data: for each word-document pairing, we also store the positions of that word in the source document. For example: after parsing out punctuation and whitespace, each word is assigned an index, with the first word given position zero and each subsequent word adding one. We also store the complete text of the document and can therefore extract any given part of the text.
Only in the Search. Once we've loaded the file contents from the cache into an array , we loop through it with some funky positioning to find the first matching word in the content, grab around words around it, then loop through those words and highlight ALL matches.
If it sounds like a hack: it is kinda. Google results often identify multiple parts of the document where matches appear, and display more than one separated by an ellipsis This equated to a 1. Using the new, improved Xml format , the file shrunk to Kb ; and after applying XmlElement attributes to shorten the element names shrunk even further to 97 Kb - actually smaller than the Binary version. So that's the Xml format we need - how do we get it? Unfortunately, just replacing the Word[] with CatalogWordFile[] isn't all we needed to do to make this work.
The FileId needs to be 'in-sync' between the CatalogWordFile and File arrays, but we don't really know what order the XmlSerializer will access the properties nor whether they'll be accessed multiple times. If you check the Catalog. Load code, you'll also notice the XmlSerialization uses the Kelvin generic serialization helper another CodeProject article.
One final note: rather than remove the Binary Serialization feature, both methods are still available, controlled by a new web. It explains the basic structure of OpenXML documents: they are actually a series of related Xml and other files, 'hidden' inside a single ZIP file with an Office file extension like docs, xlsx, pptx , etc. A Microsoft Word file looks like this 'inside' the ZIP: You can read all about the details of the format in the references , but the key file we're interested in is the document.
To search it, we'll need to do the following steps:. The new Office classes need the same behaviour, so the SaveDownloadedFile method is pushed up to a superclass they can all implement. In this file you will need to uncomment all lines related to cache. I am talking about the following lines:. That would be all. All you have to now is to rebuild the Searcharoo project and you are ready to go. Building an index running a spider - continued.
When you make the above mentioned changes and rebuild the project, you need to do the following steps to build your index:. And that would be all. A nice thing you can do about this is to put 'Searcharoo. Indexing usually takes around a few minutes only for smaller sites and is not a resource intensive operation. Asian markets fell Friday as a string of top Federal Reserve officials pressed their cases for fighting inflation, raising concerns the bank will embark on an aggressive campaign that could see four interest rate hikes this year.
The used car market in the United States is seeing an unprecedented phenomenon: owners selling vehicles for as much or more than they paid for them. The proposed acquisition by Singapore's UOB will be its biggest in two decades and double its retail customer base in the four markets in Southeast Asia, where the bank already has a substantial presence and competes with larger rivals including DBS Group and OCBC. The EU on Thursday blocked the merger of two South Korean ship-making giants over concerns the deal would restrict the supply of large liquefied gas carriers, posing a threat to Europe's energy security.
President Joe Biden has picked former Federal Reserve Governor Sarah Bloom Raskin for the Fed's key regulatory post and two Black economists - Lisa Cook and Philip Jefferson - to serve on its board in what would represent a landmark demographic overhaul of the world's most powerful central bank.
The White House sent the nominations to the Senate late on Thursday, according to two sources familiar with the process. The appointments would fill out the ranks of a seven-member panel that wields tremendous influence over the world's largest economy, and would make the Fed's top leadership the most diverse by race and gender in its year history.
Singapore is open to imposing a smoking ban on young adults on the lines of similarly strict rules proposed in New Zealand last month. Bond markets in Asia are likely to stay resilient even as the U. Federal Reserve begins to unwind stimulus and hike interest rates this year, economists said. More measured inflation will keep financial conditions relatively easier in Asia, where bond supply is also more adequately matched to demand, said Robert Tipp, chief investment strategist and head of global bonds at PGIM Fixed Income.
Asian bond markets are likely to be more resilient in terms of risk appetite, and there is less upside risk for rates, "despite the situation in China," Tipp told the Reuters Global Markets Forum GMF. Britain and India began hammering out a post-Brexit trade deal on Thursday, with London seeking a cut in tariffs on Scotch whisky and greater access to the Asian giant's services and tech sectors.
As a programme of vast infrastructure building throughout the country's neighbours, it comprises of two major components: A land trade route known as the Silk Road Economic Belt that links China to Europe via Central Asia and Russia as well as to other Asian countries, and a sea route known as the
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