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Rob Pike

A Wisdom Archive on Rob Pike

Rob Pike

A selection of articles related to Rob Pike

Rob Pike

ARTICLES RELATED TO Rob Pike

Rob Pike: Encyclopedia II - X Window System - Implementations

The X.Org reference implementation serves as the canonical implementation of X. Due to the liberal licensing, a number of variations, both free and proprietary, have appeared. Commercial UNIX vendors have tended to take the reference implementation and adapt it for their hardware, usually customising it heavily and adding proprietary extensions. Up to 2004, XFree86 provided the most common X variant on free Unix-like systems. XFree86 started as a port of X for 386-compatible PCs and, by the end of the 1990s, had become the greatest so ...

See also:

X Window System, X Window System - The X client-server model and network transparency, X Window System - Design principles of X, X Window System - User interfaces, X Window System - Implementations, X Window System - X terminals, X Window System - Limitations and criticisms of X, X Window System - Video hardware, X Window System - User interface features, X Window System - Network, X Window System - Competitors to X, X Window System - History, X Window System - Predecessors, X Window System - Origin and early development, X Window System - The MIT X Consortium and the X Consortium Inc., X Window System - The Open Group, X Window System - X.Org and XFree86, X Window System - The X.Org Foundation, X Window System - Future directions, X Window System - Nomenclature, X Window System - Release history

Read more here: » X Window System: Encyclopedia II - X Window System - Implementations

Rob Pike: Encyclopedia II - X Window System - Future directions

With the X.Org Foundation and freedesktop.org, the main line of X development has started to progress rapidly once more. The developers intend to release present and future versions as usable finished products, not merely as bases for vendors to build a product upon. X.Org has separated the architecture of the reference implementation into independent modules, each maintainable in separate projects. X11R6.9 provides the monolithic source code for legacy users, but X11R7.0 contains a modular build system for the same set of features [2 ...

See also:

X Window System, X Window System - The X client-server model and network transparency, X Window System - Design principles of X, X Window System - User interfaces, X Window System - Implementations, X Window System - X terminals, X Window System - Limitations and criticisms of X, X Window System - Video hardware, X Window System - User interface features, X Window System - Network, X Window System - Competitors to X, X Window System - History, X Window System - Predecessors, X Window System - Origin and early development, X Window System - The MIT X Consortium and the X Consortium Inc., X Window System - The Open Group, X Window System - X.Org and XFree86, X Window System - The X.Org Foundation, X Window System - Future directions, X Window System - Nomenclature, X Window System - Release history

Read more here: » X Window System: Encyclopedia II - X Window System - Future directions

Rob Pike: Encyclopedia II - UTF-8 - History

UTF-8 was invented by Ken Thompson on September 2, 1992, on a placemat in a New Jersey diner with Rob Pike. The day after, Pike and Thompson implemented it and updated their Plan 9 operating system to use it throughout. UTF-8 was first officially presented at the USENIX conference in San Diego January 25-29 1993. ...

See also:

UTF-8, UTF-8 - Description, UTF-8 - Modified UTF-8 in Java, UTF-8 - Rationale behind UTF-8's mechanics, UTF-8 - Overlong forms invalid input and security considerations, UTF-8 - Advantages and disadvantages, UTF-8 - History

Read more here: » UTF-8: Encyclopedia II - UTF-8 - History

Rob Pike: Encyclopedia II - List of text editors - Historical

List of text editors - Visual and full-screen editors. Edit application edit - A menu-based editor introduced to supersede edlin in MS-DOS version 5.0 and up. Still available under Microsoft Windows, but seldom used. EDT - A character based editor used on DEC PDP-11s and VAXen. le Red - A VAX/VMS editor, written in Forth variant STOIC. TeachText TPU List of text editors - Line editors. ed - (1) Unix's earl ...

See also:

List of text editors, List of text editors - Graphical, List of text editors - System default, List of text editors - Free software, List of text editors - Freeware, List of text editors - Commercial, List of text editors - Text-based, List of text editors - Collaborative, List of text editors - ASCII art, List of text editors - Historical, List of text editors - Visual and full-screen editors, List of text editors - Line editors

Read more here: » List of text editors: Encyclopedia II - List of text editors - Historical

Rob Pike: Encyclopedia II - Hacker - Recognized hackers

Due to the overlapping nature of the hacker concept space, many of these individuals could be included in more than one category. See also Hacker (computer security), which has a list of people in that category, including criminal and unethical hackers. Hacker - Recognized programmers. Linus Torvalds, who was a computer science student at the University of Helsinki when he began writing the Linux kernel in 1991. Mel Kaye, a near-legendary figure and the archetypal Real Programmer[ ...

See also:

Hacker, Hacker - Definitions of hack, Hacker - Categories of hacker, Hacker - Hacker: Highly skilled programmer, Hacker - Hacker: Computer and network security, Hacker - Hacker: Hardware modifier, Hacker - Hacker stereotypes, Hacker - Recognized hackers, Hacker - Recognized programmers, Hacker - Security Experts, Hacker - Hardware modifiers, Hacker - Hacker media personalities, Hacker - Related books

Read more here: » Hacker: Encyclopedia II - Hacker - Recognized hackers

Rob Pike: Encyclopedia II - UTF-8 - Overlong forms invalid input and security considerations

The exact response required of a UTF-8 decoder on invalid input is not uniformly defined by the standards. In general, there are several ways a UTF-8 decoder might behave in the event of an invalid byte sequence: Insert a replacement character (e.g. '?', '�'). Ignore the bytes. Interpret the bytes according to a different character encoding (often the ISO-8859-1 character map). Not notice and decode as if the bytes were some similar bit of UTF-8 (this would indicate the decoder is buggy). Stop decoding and report an error. It is possib ...

See also:

UTF-8, UTF-8 - Description, UTF-8 - Modified UTF-8 in Java, UTF-8 - Rationale behind UTF-8's mechanics, UTF-8 - Overlong forms invalid input and security considerations, UTF-8 - Advantages and disadvantages, UTF-8 - History

Read more here: » UTF-8: Encyclopedia II - UTF-8 - Overlong forms invalid input and security considerations

Rob Pike: Encyclopedia II - UTF-8 - Rationale behind UTF-8's mechanics

The encoding of UTF-8 is based loosely on Huffman coding, a way of representing frequency-sorted binary trees. As a consequence of the exact mechanics of UTF-8, the following properties of multi-byte sequences hold: The most significant bit of a single-byte character is always 0. The most significant bits of the first byte of a multi-byte sequence determine the length of the sequence. These most significant bits are 110 for two-byte sequences; 1110 for three-byte sequences, and so on. The remaining bytes in a multi-byte sequence hav ...

See also:

UTF-8, UTF-8 - Description, UTF-8 - Modified UTF-8 in Java, UTF-8 - Rationale behind UTF-8's mechanics, UTF-8 - Overlong forms invalid input and security considerations, UTF-8 - Advantages and disadvantages, UTF-8 - History

Read more here: » UTF-8: Encyclopedia II - UTF-8 - Rationale behind UTF-8's mechanics

Rob Pike: Encyclopedia II - Pike - Places

Pike - Counties. Pike County, Alabama, USA Pike County, Arkansas, USA Pike County, Georgia, USA Pike County, Illinois, USA Pike County, Indiana, USA Pike County, Kentucky, USA Pike County, Mississippi, USA Pike County, Missouri, USA Pike County, Ohio, USA Pike County, Pennsylvania, USA Pike - British mountains. Clougha Pike, mountain in Lancashire, England Cold Pike, hil ...

See also:

Pike, Pike - Pike as a Family Name, Pike - Persons named Pike, Pike - Places, Pike - Counties, Pike - British mountains, Pike - Fish, Pike - Other

Read more here: » Pike: Encyclopedia II - Pike - Places

Rob Pike: Encyclopedia II - UTF-8 - Modified UTF-8 in Java

The Java programming language, which uses UTF-16 for its internal text representation, supports a non-standard modification of UTF-8 for string serialization. This encoding is called modified UTF-8. There are two differences between modified and standard UTF-8. The first difference is that the null character (U+0000) is encoded with two bytes instead of one, specifically as 11000000 10000000. This ensures that there are no embedded nulls in the encoded string, presumably to address the concern that if the encoded string is processed in a language such as C where a null byte signifies the end of a string, an embed ...

See also:

UTF-8, UTF-8 - Description, UTF-8 - Modified UTF-8 in Java, UTF-8 - Rationale behind UTF-8's mechanics, UTF-8 - Overlong forms invalid input and security considerations, UTF-8 - Advantages and disadvantages, UTF-8 - History

Read more here: » UTF-8: Encyclopedia II - UTF-8 - Modified UTF-8 in Java

Rob Pike: Encyclopedia II - X Window System - Limitations and criticisms of X

The UNIX-HATERS Handbook devoted an entire chapter, "The X-Windows Disaster", to the problems of X in the late 1980s and early 1990s. Why X Is Not Our Ideal Window System (1990) by Gajewska, Manasse and McCormack detailed problems in the protocol with recommendations for improvement. X Window System - Video hardware. The performance edge for graphical computing is now in the most advanced graphics functions. Manufacturers typically implement these in proprietary drivers, generally writing for ...

See also:

X Window System, X Window System - The X client-server model and network transparency, X Window System - Design principles of X, X Window System - User interfaces, X Window System - Implementations, X Window System - X terminals, X Window System - Limitations and criticisms of X, X Window System - Video hardware, X Window System - User interface features, X Window System - Network, X Window System - Competitors to X, X Window System - History, X Window System - Predecessors, X Window System - Origin and early development, X Window System - The MIT X Consortium and the X Consortium Inc., X Window System - The Open Group, X Window System - X.Org and XFree86, X Window System - The X.Org Foundation, X Window System - Future directions, X Window System - Nomenclature, X Window System - Release history

Read more here: » X Window System: Encyclopedia II - X Window System - Limitations and criticisms of X

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