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Version 7 |
| Display document excerpt (with keywords highlighted) on the results page, plus bugfixes. NEW! Mar '09 |
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Version 6 |
| Index JPG images, index GPS location data for mapping results, address "No" Trust problem and fix a few bugs. |
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Version 5 |
| Remove Binary Serialization to solve Medium Trust problem; index OpenXML document formats. |
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Version 4 |
| Refactored codebase and ability to index and search Microsoft Word, Excel, PowerPoint and Acrobat PDFs. Little improvements like robots.txt and excluding regions of HTML also added. |
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Version 3 |
| Adds a "save to disk" for the catalog; feature suggestions, bug fixes and incorporation of code contributed by others from previous versions. |
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Version 2 |
| Extend Searcharoo to populate its search catalog by Spidering HTML pages - follow links and imagemaps to process both static and dynamicly generated pages! You can also search for multiple words. |
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Version 1 |
| How to build a simple, extensible search engine using ASP.NET that can crawl files and create a searchable catalog by processing the text from HTML source. |
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Searcharoo.net is an open-source C#/ACP.NET implementation of a search engine that you can download and use on your website. Pick the most recent version from the menu and look for a download link.
The default interface should be familiar (and is easily customizable in ASPX/HTML, jQuery/AJAX or Silverlight 2.0)!
The results can show not only the text, but geo-location information (and urls that open in Google Earth):
The articles describe how the engine itself is built, from a simple file-system crawler to
a fully-fledged web-spider. You can comment or ask questions on CodeProject.
In addition to information on this website, these search-related links might be interesting/useful.
Web search technology is a huge subject, encompassing:
- networking (spidering the web),
- string and markup-language manipulation (parsing HTML)
- proprietary file formats (searching Word, Excel, PDF, etc)
- language and text-parsing (finding words & sentences in documents, stemming and other linguistic analysis),
- algorithms (finding matches, AND/OR queries, combining multiple word results)
- performance (both increasing spidering speed, and making large catalogs fast to search)
- user interface (presenting search input options, and results)
and I would encourage you to read as much as you can about these subjects and modify Searcharoo for your own specific purpose.
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New in version 7.0
Search in Silverlight Search using jQuery and JSON Useful links
Craig's Blog
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