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Library For WWW In Perl
LWP - The World-Wide Web library for Perl (also called libwww-perl) is a set of Perl modules that give Perl programming easy access to sending requests to the World Wide Web. libwww-perl provides an application programming interface (API) to an HTTP client as well as a number of HTML utilities, and standard objects to represent HTTP requests and responses. History The first generation of libwww-perl was written by Roy Fielding using version 4.036 of Perl. Fielding's work on libwww-perl provided a backend HTTP interface for his MOMSpider Web crawler. Fielding's work on libwww-perl was informed by Tim Berners-Lee's work on libwww, and helped to clarify the architecture of the Web that was eventually documented in HTTP v1.0. The second generation of libwww-perl was based on version 5.004 of Perl, and written by Martijn Koster Martijn Koster (born ca 1970) is a Dutch software engineer noted for his pioneering work on Internet searching. Koster created ALIWEB, the Internet's firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perl Module
A Perl module is a discrete component of software for the Perl programming language. Technically, it is a particular set of conventions for using Perl's package mechanism that has become universally adopted. A module defines its source code to be in a ''package'' (much like a Java package), the Perl mechanism for defining namespaces, e.g. ''CGI'' or ''Net::FTP'' or ''XML::Parser''; the file structure mirrors the namespace structure (e.g. the source code for ''Net::FTP'' is in ''Net/FTP.pm''). Furthermore, a module is the Perl equivalent of the class when object-oriented programming is employed. A collection of modules, with accompanying documentation, build scripts, and usually a test suite, composes a distribution. The Perl community has a sizable library of distributions available for search and download via CPAN. Perl is a language allowing many different styles of programming. A developer is as likely to find a module written in a procedural style (for exampleTest::Simp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Wide Web
The World Wide Web (WWW), commonly known as the Web, is an information system enabling documents and other web resources to be accessed over the Internet. Documents and downloadable media are made available to the network through web servers and can be accessed by programs such as web browsers. Servers and resources on the World Wide Web are identified and located through character strings called uniform resource locators (URLs). The original and still very common document type is a web page formatted in Hypertext Markup Language (HTML). This markup language supports plain text, images, embedded video and audio contents, and scripts (short programs) that implement complex user interaction. The HTML language also supports hyperlinks (embedded URLs) which provide immediate access to other web resources. Web navigation, or web surfing, is the common practice of following such hyperlinks across multiple websites. Web applications are web pages that function as application s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Application Programming Interface
An application programming interface (API) is a way for two or more computer programs to communicate with each other. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how to build or use such a connection or interface is called an ''API specification''. A computer system that meets this standard is said to ''implement'' or ''expose'' an API. The term API may refer either to the specification or to the implementation. In contrast to a user interface, which connects a computer to a person, an application programming interface connects computers or pieces of software to each other. It is not intended to be used directly by a person (the end user) other than a computer programmer who is incorporating it into the software. An API is often made up of different parts which act as tools or services that are available to the programmer. A program or a programmer that uses one of these parts is said to ''call'' that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HTTP
The Hypertext Transfer Protocol (HTTP) is an application layer protocol in the Internet protocol suite model for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web, where hypertext documents include hyperlinks to other resources that the user can easily access, for example by a mouse click or by tapping the screen in a web browser. Development of HTTP was initiated by Tim Berners-Lee at CERN in 1989 and summarized in a simple document describing the behavior of a client and a server using the first HTTP protocol version that was named 0.9. That first version of HTTP protocol soon evolved into a more elaborated version that was the first draft toward a far future version 1.0. Development of early HTTP Requests for Comments (RFCs) started a few years later and it was a coordinated effort by the Internet Engineering Task Force (IETF) and the World Wide Web Consortium (W3C), with work later moving to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HTML
The HyperText Markup Language or HTML is the standard markup language for documents designed to be displayed in a web browser. It can be assisted by technologies such as Cascading Style Sheets (CSS) and scripting languages such as JavaScript. Web browsers receive HTML documents from a web server or from local storage and render the documents into multimedia web pages. HTML describes the structure of a web page semantically and originally included cues for the appearance of the document. HTML elements are the building blocks of HTML pages. With HTML constructs, images and other objects such as interactive forms may be embedded into the rendered page. HTML provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes, and other items. HTML elements are delineated by ''tags'', written using angle brackets. Tags such as and directly introduce content into the page. Other tags such as surround ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roy Fielding
Roy Thomas Fielding (born 1965) is an American computer scientist, one of the principal authors of the HTTP specification and the originator of the Representational State Transfer (REST) architectural style. He is an authority on computer network architecture and co-founded the Apache HTTP Server project. Fielding works as a Senior Principal Scientist at Adobe Systems in San Jose, California. Biography Fielding was born in 1965 in Laguna Beach, California. He describes himself as "part Maori, Kiwi, Yank, Irish, Scottish, British, and California beach bum". In 1999, the Massachusetts Institute of Technology (MIT) Technology Review TR100 named him one of the top 100 innovators in the world under the age of 35. In 2000, he received his doctorate from the University of California, Irvine. Contributions ''Architectural Styles and the Design of Network-based Software Architectures'', Fielding's doctoral dissertation, describes Representational State Transfer (REST) as a key architect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perl
Perl is a family of two high-level, general-purpose, interpreted, dynamic programming languages. "Perl" refers to Perl 5, but from 2000 to 2019 it also referred to its redesigned "sister language", Perl 6, before the latter's name was officially changed to Raku in October 2019. Though Perl is not officially an acronym, there are various backronyms in use, including "Practical Extraction and Reporting Language". Perl was developed by Larry Wall in 1987 as a general-purpose Unix scripting language to make report processing easier. Since then, it has undergone many changes and revisions. Raku, which began as a redesign of Perl 5 in 2000, eventually evolved into a separate language. Both languages continue to be developed independently by different development teams and liberally borrow ideas from each other. The Perl languages borrow features from other programming languages including C, sh, AWK, and sed; They provide text processing facilities without the arbitrary data-le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Web Crawler
A Web crawler, sometimes called a spider or spiderbot and often shortened to crawler, is an Internet bot that systematically browses the World Wide Web and that is typically operated by search engines for the purpose of Web indexing (''web spidering''). Web search engines and some other websites use Web crawling or spidering software to update their web content or indices of other sites' web content. Web crawlers copy pages for processing by a search engine, which indexes the downloaded pages so that users can search more efficiently. Crawlers consume resources on visited systems and often visit sites unprompted. Issues of schedule, load, and "politeness" come into play when large collections of pages are accessed. Mechanisms exist for public sites not wishing to be crawled to make this known to the crawling agent. For example, including a robots.txt file can request bots to index only parts of a website, or nothing at all. The number of Internet pages is extremely large; ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tim Berners-Lee
Sir Timothy John Berners-Lee (born 8 June 1955), also known as TimBL, is an English computer scientist best known as the inventor of the World Wide Web. He is a Professorial Fellow of Computer Science at the University of Oxford and a professor at the Massachusetts Institute of Technology (MIT). Berners-Lee proposed an information management system on 12 March 1989, then implemented the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server via the Internet in mid-November. Berners-Lee is the director of the World Wide Web Consortium (W3C), which oversees the continued development of the Web. He co-founded (with his then wife-to-be Rosemary Leith) the World Wide Web Foundation. He is a senior researcher and holder of the 3Com founder's chair at the MIT Computer Science and Artificial Intelligence Laboratory (CSAIL). He is a director of the Web Science Research Initiative (WSRI) and a member of the advisory board of the MIT Center for Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Libwww
Libwww was an early World Wide Web software library providing core functions for browsers, implementing HTML, HTTP, and other technologies. Tim Berners-Lee, at CERN, released libwww (then also called the "Common Library") in late 1992, comprising reusable code from the first browsers (WorldWideWeb and Line Mode Browser). Libwww was relied upon by the popular browser Mosaic. By 1997, however, interest in libwww declined, and the W3C (which took over from CERN) reduced its commitment to the project. Later, the purpose of libwww was redefined to be "a testbed for protocol experiments", and in that vein it was maintained for the benefit of the W3C's standards-promoting browser Amaya. Active development of libwww stopped in 2000. libcurl is considered to be a modern replacement for libwww. History In 1991 and 1992, Tim Berners-Lee and a student at CERN named Jean-François Groff rewrote various components of the original WorldWideWeb browser for the NeXTstep operating system in p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martijn Koster
Martijn Koster (born ca 1970) is a Dutch software engineer noted for his pioneering work on Internet searching. Koster created ALIWEB, the Internet's first search engine, which was announced in November 1993 while working at Nexor and presented in May 1994 at the First International Conference on the World Wide Web. Koster also developed ArchiePlex, a search engine for FTP sites that pre-dates the Web, and CUSI, a simple tool that allowed you to search different search engines in quick succession, useful in the early days of search when services provided varying results. Koster also created the Robots Exclusion Standard The robots exclusion standard, also known as the robots exclusion protocol or simply robots.txt, is a standard used by websites to indicate to visiting web crawlers and other web robots which portions of the site they are allowed to visit. Th .... References Living people Dutch software engineers Dutch computer scientists 1970 births {{N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
