Nvu 0.3 For Mac

Nvu is a WYSIWYGHTML editor, based on the Composer component of the Mozilla Application Suite. It is intended to be an open-source alternative to proprietary software like Microsoft Expression Web and Adobe Dreamweaver; as a WYSIWYG editor, it is designed to be easy for novice users, does not require any knowledge of HTML or CSS to use. It runs on Mac OS Windows and Linux. Nvu was the brainchild of Kevin Carmony, CEO for Linspire, who wanted an easy-to-use, WYSIWYG HTML editor for Linux users. Under Carmony's direction, Linspire started and sponsored Nvu, hiring Daniel Glazman, former Netscape Communications Corporation employee, to be the lead developer; as Nvu was discontinued, the Mozilla community has created KompoZer. The original plan in June 2005 was to merge back the numerous changes into Mozilla Composer's source code tree. Since the Mozilla Suite has been discontinued, no one has merged the Nvu code back into Composer. Daniel Glazman announced in September 2006 that he had stopped official development on Nvu, he would be developing a successor to it.

Web Acappella for Mac OS X edit screenshot - Download Notice. Using Web Acappella for Mac OS X Free Download crack, warez, password, serial numbers, torrent, keygen, registration codes, key generators is illegal and your business could subject you to lawsuits and leave your operating systems without patches. We do not host any torrent files or links of Web Acappella for Mac OS X on rapidshare. Kompozer portable free download. KompoZer KompoZer is a wysiwyg HTML editor using the Mozilla Composer codebase. As Nvu's development has been.

A community-driven fork, KompoZer, has continued the development of Nvu with the support of Mozilla Foundation. In September 2008 Daniel Glazman announced a new WYSIWYG HTML editor, BlueGriffon, written from scratch and based on Mozilla Gecko and XULRunner. Nvu complies with the W3C's web standards. By default, pages are created in accordance to HTML 4.01 Transitional and use CSS for styling, but the user can change the settings and choose between: Strict and transitional DTD's HTML 4.01 and XHTML 1.0 CSS styling or the old <font> based styling. The application includes a built-in HTML validator, which uploads pages to the W3C's HTML Validator and checks for compliance. 0.1 was released on February 4, 2004 0.20 was released on March 25, 2004 0.3 was released on June 11, 2004 0.4 was released on August 10, 2004 0.5 was released on October 6, 2004 0.6 was pre-released on November 26, 2004 0.7 was pre-released on January 6, 2005 0.8 was pre-released on February 2, 2005 0.81 was pre-released on February 9, 2005 0.90RC1 was released on March 4, 2005 0.90 was released on March 11, 2005 1.0PR was released on April 5, 2005 1.0 was released on June 28, 2005 Comparison of HTML editorsActiveState Komodo BlueGriffon KompoZer List of HTML editorsMozilla Composer Official website Extensions and themes

A computing platform or digital platform is the environment in which a piece of software is executed. It may be the hardware or the operating system a web browser and associated application programming interfaces, or other underlying software, as long as the program code is executed with it. Computing platforms have different abstraction levels, including a computer architecture, an OS, or runtime libraries. A computing platform is the stage. A platform can be seen both as a constraint on the software development process, in that different platforms provide different functionality and restrictions. For example, an OS may be a platform that abstracts the underlying differences in hardware and provides a generic command for saving files or accessing the network. Platforms may include: Hardware alone, in the case of small embedded systems. Embedded systems can access hardware directly, without an OS. A browser in the case of web-based software; the browser itself runs on a hardware+OS platform, but this is not relevant to software running within the browser.

An application, such as a spreadsheet or word processor, which hosts software written in an application-specific scripting language, such as an Excel macro. This can be extended to writing fully-fledged applications with the Microsoft Office suite as a platform. Software frameworks. Cloud computing and Platform as a Service. Extending the idea of a software framework, these allow application developers to build software out of components that are hosted not by the developer, but by the provider, with internet communication linking them together; the social networking sites Twitter and Facebook are considered development platforms. A virtual machine such as the Java virtual machine or. NET CLR. Applications are compiled into a format similar to machine code, known as bytecode, executed by the VM. A virtualized version of a complete system, including virtualized hardware, OS, storage; these allow, for instance, a typical Windows program to run on. Some architectures have multiple layers, with each layer acting as a platform to the one above it.

In general, a component only has to be adapted to the layer beneath it. For instance, a Java program has to be written to use the Java virtual machine and associated libraries as a platform but does not have to be adapted to run for the Windows, Linux or Macintosh OS platforms. However, the JVM, the layer beneath the application, does have to be built separately for each OS. AmigaOS, AmigaOS 4 FreeBSD, NetBSD, OpenBSD IBM i Linux Microsoft WindowsOpenVMSClassic Mac OSmacOSOS/2SolarisTru64 UNIX VM QNX z/OSAndroid Bada BlackBerry OSFirefox OS iOS Embedded LinuxPalm OSSymbianTizenWebOSLuneOSWindows MobileWindows Phone Binary Runtime Environment for Wireless CocoaCocoa TouchCommon Language Infrastructure Mono. NET Framework Silverlight Flash AIR GNU Java platform Java MEJava SEJava EEJavaFXJavaFX MobileLiveCodeMicrosoft XNAMozilla Prism, XUL and XULRunnerOpen Web PlatformOracle Database Qt SAP NetWeaverShockwave Smartface Universal Windows PlatformWindows Runtime Vexi Ordered from more common types to less common types: Commodity computing platforms Wintel, that is, Intel x86 or compatible personal computer hardware with Windows operating system Macintosh, custom Apple Inc. hardware and Classic Mac OS and macOS operating systems 68k-based PowerPC-based, now migrated to x86 ARM architecture based mobile devices iPhonesmartphones and iPad tablet computers devices running iOS from Apple Gumstix or Raspberry Pi full function miniature computers with Linux Newton devices running the Newton OS from Apple x86 with Unix-like systems such as Linux or BSD variants CP/M computers based on the S-100 bus, maybe the earliest microcomputer platform Video game consoles, any variety 3DO Interactive Multiplayer, licensed to manufacturers Apple Pippin, a multimedia player platform for video game console development RISC processor based machines running Unix variants SPARC architecture computers running Solaris or illumos operating systems DEC Alpha cluster running OpenVMS or Tru64 UNIX Midrange computers with their custom operating systems, such as IBM OS/400Mainframe computers with their custom operating systems, such as IBM z/OS Supercomputer architectures Cross-platform Platform virtualization Third platform Ryan Sarver: What is a platform

A computer programmer, sometimes called more a coder, is a person who creates computer software. The term computer programmer can refer to a specialist in one area of computers, or to a generalist who writes code for many kinds of software. A programmer's most oft-used computer language may be prefixed to the term programmer; some who work with web programming languages prefix their titles with web. A range of occupations that involve programming often require a range of other, similar skills, for example: developer, web developer, mobile applications developer, embedded firmware developer, software engineer, computer scientist, game programmer, game developer and software analyst; the use of the term programmer as applied to these positions is sometimes considered an insulting simplification or derogatory. British countess and mathematicianAda Lovelace is considered to be the first computer programmer, as she was the first to publish part of a program intended for implementation on Charles Babbage's analytical engine, in October 1842.

The algorithm was used to calculate Bernoulli numbers. Because Babbage's machine was never completed as a functioning standard in Lovelace's time, she never had the opportunity to see the algorithm in action; the first person to execute a program on a functioning, electronic computer was the renowned computer scientist Konrad Zuse, in 1941. The ENIAC programming team, consisting of Kay McNulty, Betty Jennings, Betty Snyder, Marlyn Wescoff, Fran Bilas and Ruth Lichterman were the first working programmers. International Programmers' Day is celebrated annually on 7 January. In 2009, the government of Russia decreed a professional annual holiday known as Programmers' Day to be celebrated on 13 September, it had been an unofficial holiday before that in many countries. The word software was used as early as 1953, but did not appear in print until the 1960s. Before this time, computers were programmed either by customers or the few commercial computer manufacturers of the time, such as UNIVAC and IBM.

The first company founded to provide software products and services was the Computer Usage Company, in 1955. The software industry expanded in the early 1960s immediately after computers were first sold in mass-produced quantities. Universities and businesses created a demand for software. Many of these programs were written in-house by full-time staff programmers, and others were developed on a commercial basis. Other firms, such as Computer Sciences Corporation started to grow; the computer/hardware manufacturers soon started bundling operating systems, system software and programming environments with their machines. The industry expanded with the rise of the personal computer in the mid-1970s, which brought computing to the average office worker. In the following years the PC helped create a constantly-growing market for games and utilities software. CP/M replaced by DOS, Microsoft's Windows popular operating system of the time. In the early years of the 21st century, another successful business model has arisen for hosted software, called software-as-a-service, or SaaS.

From the point of view of producers of some proprietary software, SaaS reduces the concerns about unauthorized copying, since it can only be accessed through the Web, by definition, no client software is loaded onto the end user's PC. By 2014, the role of cloud developer had been defined. Computer programmers write, test and maintain the detailed instructions, called computer programs, that computers must follow to perform their functions. Programmers conceive and test logical structures for solving problems by computer. Many technical innovations in programming — advanced computing technologies and sophisticated new languages and programming tools — have redefined the role of a programmer and elevated much of the programming work done today. Job titles and descriptions may vary, depending on the organization. Programmers work in many settings, including corporate information technology departments, big software companies, small service firms and government entities of all sizes. Many professional programmers work for consulting companies at client sites as contractors.

Licensing is not required to work as a programmer, although professional certifications are held by programmers. Programming is considered a profession. Programmers' work varies depending on the type of business for which they are writing programs. For example, the instructions involved in updating financial records are different from those required to duplicate conditions on an aircraft for pilots training in a flight simulator. Simple programs can be written in a few hours, more complex ones may require more than a year of work, while others are never considered'complete' but rather are continuously improved as long as they stay in use. In most cases, several programmers work together as a team under a senior programmer's supervision. Programmers write programs according to the specifications determined by more se

The GNU General Public License is a widely-used free software license that guarantees end users the freedom to run, study and modify the software. The license was written by Richard Stallman, former head of the Free Software Foundation, for the GNU Project, grants the recipients of a computer program the rights of the Free Software Definition; the GPL is a copyleft license, which means that derivative work must be distributed under the same or equivalent license terms. This is in distinction to permissive software licenses, of which the BSD licenses and the MIT License are widely-used less-restrictive examples. GPL was the first copyleft license for general use; the GPL license family has been one of the most popular software licenses in the free and open-source software domain. Prominent free-software programs licensed under the GPL include the Linux kernel and the GNU Compiler Collection. David A. Wheeler argues that the copyleft provided by the GPL was crucial to the success of Linux-based systems, giving the programmers who contributed to the kernel the assurance that their work would benefit the whole world and remain free, rather than being exploited by software companies that would not have to give anything back to the community.

In 2007, the third version of the license was released to address some perceived problems with the second version which were discovered during the latter's long-time usage. To keep the license up to date, the GPL license includes an optional 'any version' clause, allowing users to choose between the original terms or the terms in new versions as updated by the FSF. Developers can omit it; the GPL was written by Richard Stallman in 1989, for use with programs released as part of the GNU project. The original GPL was based on a unification of similar licenses used for early versions of GNU Emacs, the GNU Debugger, the GNU C Compiler; these licenses contained similar provisions to the modern GPL, but were specific to each program, rendering them incompatible, despite being the same license. Stallman's goal was to produce one license that could be used for any project, thus making it possible for many projects to share code; the second version of the license, version 2, was released in 1991. Over the following 15 years, members of the free software community became concerned over problems in the GPLv2 license that could let someone exploit GPL-licensed software in ways contrary to the license's intent.

These problems included tivoization, compatibility issues similar to those of the Affero General Public License—and patent deals between Microsoft and distributors of free and open-source software, which some viewed as an attempt to use patents as a weapon against the free software community. Version 3 was developed to attempt to address these concerns and was released on 29 June 2007. Version 1 of the GNU GPL, released on 25 February 1989, prevented what were the two main ways that software distributors restricted the freedoms that define free software; the first problem was that distributors may publish binary files only—executable, but not readable or modifiable by humans. To prevent this, GPLv1 stated that copying and distributing copies or any portion of the program must make the human-readable source code available under the same licensing terms; the second problem was that distributors might add restrictions, either to the license, or by combining the software with other software that had other restrictions on distribution.

The union of two sets of restrictions would apply to the combined work, thus adding unacceptable restrictions. To prevent this, GPLv1 stated that modified versions, as a whole, had to be distributed under the terms in GPLv1. Therefore, software distributed under the terms of GPLv1 could be combined with software under more permissive terms, as this would not change the terms under which the whole could be distributed. However, software distributed under GPLv1 could not be combined with software distributed under a more restrictive license, as this would conflict with the requirement that the whole be distributable under the terms of GPLv1. According to Richard Stallman, the major change in GPLv2 was the 'Liberty or Death' clause, as he calls it – Section 7; the section says that licensees may distribute a GPL-covered work only if they can satisfy all of the license's obligations, despite any other legal obligations they might have. Richard burns rally download. In other words, the obligations of the license may not be severed due to conflicting obligations.

This provision is intended to discourage any party from using a patent infringement claim or other litigation to impair users' freedom under the license. By 1990, it was becoming apparent that a less restrictive license would be strategically useful for the C library and for software libraries that did the job of existing proprietary ones; the version numbers diverged in 1999 when version 2.1 of the LGPL was released, which renamed it the GNU Lesser General Public License to reflect its place in the philosophy. Most 'GPLv2 or any version' is stated by users of the license, to allow upgrading to GPLv3. In late 2005, the Free Software Foundation announced work on version 3 of the GPL. On 16 January 2006, the first 'discussion draft' of GPLv3 was published, the public consultation began; the public co

A software licence is a legal instrument governing the use or redistribution of software. Under United States copyright law, all software is copyright protected, in both source code and object code forms, unless that software was developed by the United States Government, in which case it cannot be copyrighted. Authors of copyrighted software can donate their software to the public domain, in which case it is not covered by copyright and, as a result, cannot be licensed. A typical software licence grants the licensee an end-user, permission to use one or more copies of software in ways where such a use would otherwise constitute copyright infringement of the software owner's exclusive rights under copyright. Most distributed. Two common categories for software under copyright law, therefore with licenses which grant the licensee specific rights, are proprietary software and free and open-source software; the distinct conceptual difference between the two is the granting of rights to modify and re-use a software product obtained by a customer: FOSS software licenses both rights to the customer and therefore bundles the modifiable source code with the software, while proprietary software does not license these rights and therefore keeps the source code hidden.

In addition to granting rights and imposing restrictions on the use of copyrighted software, software licenses contain provisions which allocate liability and responsibility between the parties entering into the license agreement. In enterprise and commercial software transactions, these terms include limitations of liability and warranty disclaimers, indemnity if the software infringes intellectual property rights of anyone. Unlicensed software outside the scope of copyright protection is either public domain software or software, non-distributed, non-licensed and handled as internal business trade secret. Contrary to popular belief, distributed unlicensed software is copyright protected, therefore unusable until it passes into public domain after the copyright term has expired. Examples of this are unauthorized software leaks or software projects which are placed on public software repositories like GitHub without a specified license; as voluntarily handing software into the public domain is problematic in some jurisdictions, there are licenses granting PD-like rights, for instance the CC0 or WTFPL.

Many proprietary or open source software houses sell the SW copy with a license to use it. There isn't any transferring of ownership of the good to the user, which hasn't the warranty of a for life availability of the software, nor isn't entitled to sell, give it to someone, copy or redistribute it on the Web. License terms and conditions may specify further legal clauses that users can't negotiate individually or by way of a consumer organization, can uniquely accept or refuse, returning the product back to the vendor; this right can be applied where the jurisdiction provides a mandatory time for the good decline right after the purchase, or a mandatory public advertisement of the license terms, so as to be made readable by users before their purchasing. In the United States, Section 117 of the Copyright Act gives the owner of a particular copy of software the explicit right to use the software with a computer if use of the software with a computer requires the making of incidental copies or adaptations.

Therefore, the owner of a copy of computer software is entitled to use that copy of software. Hence, if the end-user of software is the owner of the respective copy the end-user may use the software without a license from the software publisher; as many proprietary 'licenses' only enumerate the rights that the user has under 17 U. S. C. § 117, yet proclaim to take rights away from the user, these contracts may lack consideration. Proprietary software licenses proclaim to give software publishers more control over the way their software is used by keeping ownership of each copy of software with the software publisher. By doing so, Section 117 does not apply to the end-user and the software publisher may compel the end-user to accept all of the terms of the license agreement, many of which may be more restrictive than copyright law alone; the form of the relationship determines if it is a lease or a purchase, for example UMG v. Augusto or Vernor v. Autodesk, Inc; the ownership of digital goods, like software applications and video games, is challenged by 'licensed, not sold' EULAs of digital distributors like Steam.

In the European Union, the European Court of Justice held that a copyright holder cannot oppose the resale of a digitally sold software, in accordance with the rule of copyright exhaustion on first sale as ownership is transferred, questions therefore the 'licensed, not sold' EULA. The Swiss-based company UsedSoft innovated the resale of business software and fought for this right in court. In Europe, EU Directive 2009/24/EC expressly permits trading used computer programs; the hallmark of proprietary software licenses is that the software publisher grants the use of one or more copies of software under the end-user license agreement, but ownership of those copies remains with the software publisher. This feature of proprietary software licenses means that certain rights re

Alba Giselle Reyes Santos is a Puerto Rican actress and beauty pageant titleholder. Who won the title of Miss Puerto Rico Universe 2004 in which on she placed 2nd runner-up at the Miss Universe 2004 pageant, won the award of Miss Photogenic, she is known for being the first woman with noticeably mixed features to represent Puerto Rico at Miss Universe, different from past titleholders who all have distinct European features. She obtained a Juris DoctorMagna Cum Laude from the University of Puerto Rico School of Law in 2011, although she never became a licensed lawyer. In 2013, Reyes was a contestant on Ready for Love, in which she competed for the attention of Ernesto Arguello where she finished as runner-up to Shandi Finnessey, whom she had competed against in Miss Universe 2004

Villars-le-Grand is a former municipality in the district of Broye-Vully in the canton of Vaud in Switzerland. The municipalities of Bellerive, Constantine, Mur and Villars-le-Grand merged on 1 July 2011 into the new municipality of Vully-les-Lacs. Villars-le-Grand is first mentioned in 1246 as Uilar. Villars-le-Grand has an area, as of 2009, of 4.2 square kilometers. Of this area, 3.68 km2 or 87.6% is used for agricultural purposes, while 0.13 km2 or 3.1% is forested. Of the rest of the land, 0.35 km2 or 8.3 % is settled, 0.08 km2 or 1.9 % is either lakes. Of the built up area and buildings made up 2.9% and transportation infrastructure made up 5.2%. Out of the forested land, 1.7% of the total land area is forested and 1.4% is covered with orchards or small clusters of trees. Of the agricultural land, 77.4% is used for growing crops and 7.9% is pastures, while 2.4% is used for orchards or vine crops. All the water in the municipality is flowing water; the municipality was part of the Avenches District until it was dissolved on 31 August 2006, Villars-le-Grand became part of the new district of Broye-Vully.

The blazon of the municipal coat of arms is a Grill Sable. Villars-le-Grand has a population of 275; as of 2008, 5.4% of the population are resident foreign nationals. Over the last 10 years the population has changed at a rate of -3.5%. It has changed at a rate of -1.1 % due to births and deaths. Most of the population speaks French, with German being second most common and Portuguese being third. There is 1 person. Of the population in the municipality 134 or about 46.2% were born in Villars-le-Grand and lived there in 2000. There were 55 or 19.0% who were born in the same canton, while 72 or 24.8% were born somewhere else in Switzerland, 16 or 5.5% were born outside of Switzerland. In 2008 there were 2 births to non-Swiss citizens. Ignoring immigration and emigration, the population of Swiss citizens increased by 2 while the foreign population increased by 2; the total Swiss population change in 2008 was a decrease of 10 and the non-Swiss population increased by 2 people. This represents a population growth rate of -2.8%.

The age distribution, as of 2009, in Villars-le-Grand is. Of the adult population, 23 people or 8.4 % of the population are between 29 years old. 24 people or 8.7% are between 30 and 39, 44 people or 16.0% are between 40 and 49, 38 people or 13.8% are between 50 and 59. The senior population distribution is 49 people or 17.8% of the population are between 60 and 69 years old, 23 people or 8.4% are between 70 and 79, there are 14 people or 5.1% who are between 80 and 89, there are 4 people or 1.5% who are 90 and older. As of 2000, there were 115 people who never married in the municipality. There were 9 individuals who are divorced; as of 2000 the average number of residents per living room was 0.61, about equal to the cantonal average of 0.61 per room. In this case, a room is defined as space of a housing unit of at least 4 m2 as normal bedrooms, dining rooms, living rooms and habitable cellars and attics. About 66.7 % of the total households were in other words did not pay rent. As of 2000, there were 107 private households in the municipality, an average of 2.7 persons per household.

There were 19 households that consist of 9 households with five or more people. Out of a total of 109 households that answered this question, 17.4% were households made up of just one person and there were 2 adults who lived with their parents. Of the rest of the households, there are 39 married couples without children, 41 married couples with children There were 6 single parents with a child or children. In 2000 there were 47 single family homes out of a total of 90 inhabited buildings. There were 10 multi-family buildings, along with 30 multi-purpose buildings that were used for housing and 3 other use buildings that had some housing. Of the single family homes 17 were built before 1919, while 6 were built between 1990 and 2000; the most multi-family homes were built before 1919 and the next most were built between 1919 and 1945. There was 1 multi-family house built between 1996 and 2000. In 2000 there were 115 apartments in the municipality; the most common apartment size was 4 rooms of which there were 39.

There were 43 apartments with five or more rooms. Of these apartments, a total of 102 apartments were permanently occupied, while 6 apartments were seasonally occupied and 7 apartments were empty; as of 2009, the construction rate of new housing units was 3.6 new units per 1000 residents. The vacancy rate for the municipality, in 2010, was 0.79%. The historical population is given in the following chart: In the 2007 federal election the most popular party was the SVP which received 39.93% of the vote. The next three most popular parties were the FDP, the SP and the CVP. In the federal election, a total of 96 votes were cast, the voter turnout was 43.4%. As of 2010, Villars-le-Grand had an unemployment rate of 2.1%. As of 2008, there were 67 people employed in the pr

In computing, s-expressions, sexprs or sexps are a notation for nested list data, invented for and popularized by the programming language Lisp, which uses them for source code as well as data. In the usual parenthesized syntax of Lisp, an s-expression is classically defined as an atom, or an expression of the form where x and y are s-expressions; the second, recursive part of the definition represents an ordered pair, which means that s-expressions are binary trees. The definition of an atom varies per context. Most modern sexpr notations in addition use an abbreviated notation to represent lists in s-expressions, so that stands for where NIL is the special end-of-list object. In the Lisp family of programming languages, s-expressions are used to represent both source code and data. Other uses of S-expressions are in Lisp-derived languages such as DSSSL, as mark-up in communications protocols like IMAP and John McCarthy's CBCL. It's used as text representation of WebAssembly; the details of the syntax and supported data types vary in the different languages, but the most common feature among these languages is the use of S-expressions and prefix notation.

There are many variants of the S-expression format, supporting a variety of different syntaxes for different datatypes. The most supported are: Lists and pairs: Symbols: with-hyphen?@!$ a symbol with spaces Strings: 'Hello, world!' Integers: -9876543210 Floating-point numbers: -0.0 6.28318 6.023e23The character # is used to prefix extensions to the syntax, e.g. #x10 for hexadecimal integers, or #C for characters. When representing source code in Lisp, the first element of an S-expression is an operator or function name and any remaining elements are treated as arguments; this is called 'prefix notation' or 'Polish notation'. As an example, the Boolean expression written 4 in C, is represented as in Lisp's s-expr-based prefix notation; as noted above, the precise definition of 'atom' varies across LISP-like languages. A quoted string can contain anything but a quote, while an unquoted identifier atom can contain anything but quotes, whitespace characters, brackets, braces and semicolons.

In either case, a prohibited character can be included by escaping it with a preceding backslash. Unicode support varies; the recursive case of the s-expr definition is traditionally implemented using cons cells. S-expressions were intended only for data to be manipulated by M-expressions, but the first implementation of Lisp was an interpreter of S-expression encodings of M-expressions, Lisp programmers soon became accustomed to using S-expressions for both code and data; this means. Nested lists can be written as S-expressions: is a two-element S-expression whose elements are two-element S-expressions; the whitespace-separated notation used in Lisp is typical. Line breaks qualify as separators; this is a simple context-free grammar for a tiny subset of English written as an s-expression, where S=sentence, NP=Noun Phrase, VP=Verb Phrase, V=Verb: Program code can be written in S-expressions using prefix notation. Example in Common Lisp: S-expressions can be read in Lisp using the function READ.

READ returns Lisp data. The function PRINT can be used to output an s-expression; the output can be read with the function READ, when all printed data objects have a readable representation. Lisp has readable representations for numbers, symbols and many other data types. Program code can be formatted as pretty printed S-expressions using the function PPRINT. Lisp programs are valid s-expressions. Is a valid s-expression, but not a valid Lisp program, since Lisp uses prefix notation and a floating point number is not valid as an operation. An S-expression preceded by a single quotation mark, as in'x, is syntactic sugar for a quoted S-expression, in this case. S-Expressions are compared to XML, a key difference being that S-Expressions are far simpler in syntax, therefore being much easier to parse. Standards for some Lisp-derived programming languages include a specification for their S-expression syntax; these include Common Lisp, ISLISP. In May 1997, Ron Rivest submitted an Internet-Draft to be considered for publication as an RFC.

The draft defined a syntax based on Lisp S-expressions but intended for general-purpose data storage and exchange rather than for programming. It was never approved as an RFC, but it has since been cited and used by other RFCs and several other publications, it was intended for use in SPKI. Rivest's format defines an S-expression as being either an octet-string or a finite list of other S-expressions, it describes three interchange formats for expressing this structure. One is the 'adva