4/18/2023 0 Comments Melody assistant 7.6.2 serialThe thesis describes the application of agent technology in product manufacturing and product support. As our studies and results directed us toward its necessity and value, we were inspired from previous studies in designing human involvement and customized our approaches to benefit from human input. Our experience confirms previous work that states that a well-designed human intervention or contribution in design, realization, or evaluation of an information system either improves its performance or enables its realization. We mostly first developed an automated approach, then we extended and improved it by integrating human intervention at various steps of the automated approach. Our efforts in this direction informed us about the extent this automation can be realized. Fully automatizing microtext analysis has been our goal since the first day of this research project. Finally, we propose a method to integrate the machine learning based relevant information classification method with a rule-based information classification technique to classify microtexts. Second, we suggest a method which facilitates the definition of relevance for an analyst's context and the use of this definition to analyze new data. First, we show that predicting time to event is possible for both in-domain and cross-domain scenarios. This dissertation proposes a semi-automatic method for extracting actionable information that serves this purpose. Moreover, a significant amount of this information, if aggregated, could complement existing information networks in a non-trivial way. ![]() Some of this aggregated information is referring to events that could or should be acted upon in the interest of e-governance, public safety, or other levels of public interest. Part of this information can be aggregated beyond the level of individual posts. Microblogs such as Twitter represent a powerful source of information. The value of the framework can be fully assessed after testing whether users can perform tasks better, faster and easier with a task assistant than with, for example, a manual A more definitive validation can be given if we implement the complete system and test it with human users. As a preliminary validation of our framework, we have presented a dialogue in which errors are detected and repaired, which can be constructed with the rules that we present in this thesis. Of our error handling module, only some aspects were implemented, leaving the rest of the implementation and validation for future work. ![]() Our basic framework was almost completely implemented, showing that it is indeed a valid framework. ![]() The error handling module can deal with errors such as misunderstandings and erroneous actions by the user. The basic dialogue system itself is only capable of producing and interpreting instructions that are part of the task at hand, based on principles from dialogue theory and cooperation. In order to make the system robust and generic, we present an error handling module that is separate from the basic dialogue system. We have also investigated a technique for natural language processing and generation. Then, we have constructed a framework for such a system, consisting of a basic system and an error handling module. Based on this, we have gathered a set of requirements that we believe any such system should adhere to. We have developed this framework by investigating human-human dialogues, principles of cooperation, and dialogue systems. This allows us to simulate human-computer dialogue by representing the user as a simple BDI agent itself. Its internals are represented according to the BDI (Belief-Desire-Intention) paradigm, which enables us to consider the program and the human user in similar terms. Being an agent, it is autonomous, social, reactive and goal-directed. The framework that we present in this thesis is modeled as a BDI agent. More specifically, we have studied the generation of dialogues in which the robot iCat instructs the user to perform a task, most notably the preparation of a recipe that is chosen by the user at the beginning of the dialogue. We focus on task-oriented dialogues, since they have a relatively high level of predictability and a clear goal. In this thesis, we present a number of tactics to make the generation of human-computer dialogues more robust. Although not all errors can be solved easily, we can at least attempt to avoid total communication breakdown. Humans are unpredictable, make mistakes, vary their pronunciation, change their minds halfway through utterances or actions, and so on. Because of this, programming human-computer dialogues is also a complicated task. ![]() Planning dialogues is a notoriously difficult task, consisting of several non-trivial components.
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4/17/2023 0 Comments Gamesalad success stories![]() “We’ve seen many developers build big businesses with GameSalad. GameSalad has attracted a strong following among established game makers who prefer GameSalad to traditional coding for the speed with which games can be brought to market.īecause the tools include monetization, and game makers can sell games in app marketplaces. Game makers simply “click to publish” and can choose to publish to the web (HTML5), Android and iOS platforms. The tools, available on Mac and PC, are simple to use thanks to a streamlined process that makes bringing games to market easy. GameSalad helps users create, publish, and monetize games. Investors are excited about GameSalad because of the end to end game platform that the company has created. Since then, the company has gone on to raise $7.1 million in venture funding from some of the biggest names in the business, including Greycroft Partners, DFJ Mercury, ff Venture Capital, and Steamboat Ventures. What he noticed was he had come up with a tool that was accessible to non-programmers and helped democratize game development by making it useful to users that don’t have a computer science background. Michael Agustin began thinking about a tool set that extracted the most common features in a game and figured if he could abstract those features into an easy-to-use tool set, it would help studios develop games quickly. The initial concept was to develop tools for “rapid prototyping” in the gaming industry. The company now has studios in Austin and Los Angeles. That summer Gendai Games joined the Austin Technology Incubator before changing the name of the company to GameSalad in 2010. Founded in 2007 by Michael Agustin, Tan Tran, Joshua Seaver, and Dan Treiman, the company released its first open beta of the GameSalad Game Creator product as Gendai Games, Inc. The San Francisco-based GameSalad provides a platform used by creators to rapidly design, publish and distribute original cross platform games. Now, a company called GameSalad wants to turn everyone into a game designer, no coding required. Which will, in about 2 months, bring me between $500,000 to $1 Million per year.Thanks to the explosion of mobile and social media games like Angry Birds and Farmville in the past five years, everyone is a gamer. Doing these things, it opened up a window for me to do these things with a company, which landed me a percentage of ownership of said company. So their own game in a sense.ĮDIT: Forgot to mentioned the big part. I also reached out to authors, musicians etc and gained rights to make their books into games or use them in a game. AT the rate im going now, If i purely focus on the Draw apps, I will easily make $10,000 a month very soon just off them. Aiming first for things that have a Nich appeal, Like Minecraft. lol Trees, Minecraft, Boats, Guns, Cars, Scenery, Superheroes, Anime etc. ![]() SO im making How To Draw.every dern thing. But ive learned that HOW TO apps get alot of hit. I only use Admob, banner and interstitial ads. Which i give the client 2 options, one Pay me X amount to straight up own the app and receive all source codes for all platforms, or pay me NOTHING and let me place ads in it. Then i use BB to make business apps for businesses that showcase information etc. A few of my How To Draw apps i made with BB brings in about $250 each.each month. 4/17/2023 0 Comments Rip bullet woundThose who survive long enough are whisked to operating rooms, but often the injuries cannot be repaired. Organs are damaged, blood vessels rip and many victims bleed to death before they reach a hospital. “Then the bullet starts tumbling, causing more and more destruction.” Even a bullet that misses bone can result in surprising damage as the blast wave travels through the body, it pushes tissues and organs aside in a temporary cavity larger than the bullet itself. Striking bone can also cause bone fragments that radiate outward, cutting tissue in each fragment’s path. And the yaw can contribute to the larger exit wound. The high energy bullet creates a blast wave around the bullet. Such bullets, which can cause wider wound channels, are proscribed in most military use. Surgeons say the weapons produce the same sort of horrific injuries seen on battlefields.Ĭivilian owners of military-style weapons can also buy soft-nosed or hollow-point ammunition, often used for hunting, that lacks a full metal jacket and can expand and fragment on impact. The AR-15, like the M4 and M16 rifles issued to American soldiers, shoots lightweight, high-speed bullets that can cause grievous bone and soft tissue wounds, in part by turning sideways, or “yawing,” when they hit a person. ![]() Many factors determine the severity of a wound, including a bullet’s mass, velocity and composition, and where it strikes. It was legal there for Nikolas Cruz, 19, the suspect in the shooting, to buy a civilian version of the military’s standard rifle, while he would have had to be 21 to buy a less powerful and accurate handgun. The doctors say they are haunted by their experiences confronting injuries so dire they struggle to find words to describe them.Īt a high school in Parkland, Fla., 17 people were recently killed with just such a weapon - a semiautomatic AR-15. Perhaps no one knows the devastating wounds inflicted by assault-style rifles better than the trauma surgeons who struggle to repair them. 4/17/2023 0 Comments Narita boy length![]() Zunesha can suck up and expel massive amounts of sea water, and with it lots of fish, using its trunk. Due to its gigantic size, it can carry the whole island of Zou on its back, and as a result of seemingly incredible endurance has been able to spend an entire millennium continuously carrying Zou whilst walking. ![]() Zunesha has immense longevity, given its so-far more than 1000 years of life. He planned to force the elephant to its knees in order to reach its head and kill it in sadistic ways however, Zunesha was determined to protect the minks, and with Momonosuke's permission, it annihilated Jack's fleet with one swing of its trunk. Luffy's presence to the individual Zunesha knew long ago.ĭuring his second attack on Zou, Jack decided to slaughter the minks by bringing down Zunesha. Zunesha holds nostalgic feelings for Joy Boy and was able to tell their return during the Raid on Onigashima, comparing Monkey D. Outside of that, the specifics of their relationship are still a mystery. Zunesha came to Wano to assist Momonosuke and await his orders.Īccording to Momonosuke, Zunesha was a comrade of Joy Boy back during the Void Century. Momonosuke obliged and gave the order, allowing the elephant to save itself. While under attack from an enemy fleet, Zunesha used the "Voice of All Things" to telepathically speak to Momonosuke so that he can give him the order to retaliate. Miyagi was excited to learn that Zunesha could understand his tribe and wanted to ask where it is going after traveling over a millennia. The minks also tended to Zunesha's leg, which had been injured by Jack's attack, as they expressed gratitude to it for protecting them. ![]() After Zunesha defeated Jack, the minks were surprised to learn that it possessed a will of its own in all the time that they have lived there. When Jack and his fleet were attacking it, Zunesha worried about the minks dying if it were to fall into the sea and begged Kozuki Momonosuke to allow it to fight before this happened. Zunesha has a commensal relationship with the Mink Tribe and the island of Zou twice per day, it showers itself with seawater, which helps the minks acquire food in the form of fish and water via a filtration system, causing them to consider it a blessing. Miyagi speculates that Zunesha is not walking aimlessly and may, in fact, be looking for a certain location. ![]() Īs part of the sentence for whatever crime it committed in the past, Zunesha is not allowed to do anything but wander around, requiring permission from someone who can understand it to act against threats to its well-being. Most of Zunesha's personality is a mystery, but it does not mind carrying a civilization on its back, and in fact cares greatly about the Mink Tribe. Its gray skin is heavily wrinkled, reflecting its old age, and its ears are tattered and frayed at the edges. However, Zunesha has comparatively small eyes (shown to have turquoise, ringed irises in the anime) sunken deep into their sockets, being barely visible at most times and giving the impression that it has no eyes at all. Zunesha is a gargantuan elephant, comparable to an island in sheer scale its two-jointed legs are disproportionately and extremely long, such that it can walk on the sea floor while its upper body, including about a third of each leg, remains above the water. 4/17/2023 0 Comments Gradius gaiden different musicWhen we did that, we realized that having everything “upside down” conveyed a certain feeling of discomfiture, in a good sense. ![]() One day we were testing the vertical inversion hardware feature, and we tried inverting the volcano stage as an experiment. Though now when I think of it, I don’t really know why I thought they should be shooting rings from their mouths. ![]() (laughs) I said we can’t just leave it like this, and so I worked hard with the background designer, suggesting they shoot rings from their mouths and can be destroyed. But I personally thought the Moai were memorable characters and I really wanted to add them. Stage 3: MoaiĪt first the Moai were just part of the background, and I remember it wasn’t very interesting. From that we got the image for Moai or Stonehenge floating on a continent in outer space, and everyone thought “this is cool!” That was the origin of those creative stage designs. As we talked about what the theme for each stage would be, the idea came up for ancient ruins and mysterious fantasy worlds. Originally, we had the basic idea for Gradius that you would warp to a different dimension for each stage. His major works for Konami include Contra, Ajax, and Kyuukyoku Sentai Dadandaan. Responsible for the basic world setting and enemy characters. Movie Gallery - Watch the intro movies taken from the PlayStation games, these have been converted to the PSP video format from the digital masters so the quality is superb.Participated in Gradius from the planning stage. ![]() There are a few extra bits in this pack which is very nice to see. The only problem I have found is that it does not save exactly where you were but at the last route level. The PSP Full Screen Mode is just like the PlayStation version of Gradius Deluxe Pack, this means you have more playing area and makes the games a bit easier.Īll the games have a save game option where you can Pause and save your game for later, the good thing is the save game is kept even if you carry on at a later date, which means you can save and carry on from that point as many times as you want.
4/17/2023 0 Comments Newsbar meme![]() Who spawned this particular crypto acronym? Do your own research. Anywhere there’s dissatisfaction with the status quo, “Buy bitcoin” street art and slogans will follow. Bitcoin Sign Guy became the stuff of legend, and the invocation to “Buy bitcoin” has been shoehorned into the unlikeliest of places over the years, from the yellow vest protests in France to the streets of Hong Kong. Federal Reserve chair Janet Yellen with a “Buy bitcoin” sign as she testified to Congress. For a wholesome example, we can go to 2017 when a guy photobombed U.S. Not all crypto memes are about scams, just as not all cryptocurrencies are scams, despite what the opening entries in this compendium may suggest. “Technically you kinda lost your money” remains Trevon’s defining catchphrase, and one which has been applied to many subsequent crypto projects. Not only was shameless Bitconnect promoter Trevon James wrong about the project’s legitimacy, but he lost out to Carlos when it came to conjuring its most enduring meme. Still, at least we got a nice meme out of it. In crypto, everything is apparently a scam, which has the unfortunate effect of making nothing a scam, and thus enabling blatant scams. While we’re dabbing all over Bitconnect, Carlos Matos’ “That’s a scam!” refrain has been liberally applied to any crypto project that the community takes a dislike to – particularly when the haters are bitcoin maximalists, to whom everything bar BTC is a scam, including Ethereum and Monero.Ī fine example of an iterating meme, in the vein of Pepe or Wojak, “That’s a scam!” has evolved over time, characterized by Leigh Cuen’s “Scam or Iteration?” Coindesk article on Ethereum at Devcon 2019, which was itself then memed by Aaron Van Wirdum in “Scam or Iteration - in Berlin, Bitcoin Diehards Still Believe in Lightning.” ![]() If you don’t begin each day by greeting your Telegram buddies and bemused pillow partner with these words, do you even crypto? For Carlos’ three-minute presentation alone, every line of which is a memetic classic, the Bitconnect ponzi was worth it. There will inevitably be some that have slipped the net, but give or take, these are the crypto memes that shaped the last decade. ![]() What follows is its crypto counterpart an exhaustive attempt to document the memes that have shaped crypto culture since Bitcoin’s inception. While some of its selections can be questioned, the herculean effort that went into compiling it cannot. In December, Buzzfeed published the 100 Best Memes of the Decade. These are the 50 greatest cryptocurrency memes of all time.Īlso read: Cryptocurrency Memes: The Only Assets That Can Survive a Bear Market Dank Memes from the Decade That Bitcoin Built To mark the dawn of a new decade, has endeavored to catalog the crypto memes that came to define the last one. Exploitable image macros, shareable acronyms, and obscure in-jokes are the stuff that crypto is made of. Memes are the fuel that powers the cryptoconomy. 4/17/2023 0 Comments Descent legends of the dark news![]() You’ll also uncover a wealth of activity between scenarios, such as crafting, shopping in the city, upgrading equipment, and more.īecause of these various differences, Descent: Legends of the Dark is not compatible with Descent: Journeys in the Dark content.ĭescent: Legends of the Dark invites you to become one of six heroes, each eager to adventure across Terrinoth and brought to gorgeous life with stunning art and a beautifully crafted miniature. The app also brings new changes to gameplay, introducing enemies with adaptable strategies, complex status effects and triggers fully managed by the app, and the ability to develop your heroes based on the choices you make in scenarios. ![]() Legends of the Dark harnesses its integrated companion app to deliver a cooperative game from the very beginning, freeing you and your friends to fully focus on becoming the heroes of Terrinoth.Ĭore gameplay mechanics such as combat, fatigue, skills, items, and more have received completely new interpretations with Legends of the Dark, while a new approach to scenario layout and 3D terrain creates striking multi-level scenarios. Although it shares the realm of Terrinoth and the top-level identity as a dungeon-crawling board game indicated by the Descent title, we see Legends of the Dark as a new addition to our catalog, rather than a third edition of Journeys in the Dark.Īlthough Journeys in the Dark featured the Road to Legend companion app, that game was always designed as a competitive experience, pitting one to four hero players against a single overlord player. ![]() Is this the third edition of Descent: Journeys in the Dark?ĭescent: Legends of the Dark is not the third edition of Descent: Journeys in the Dark. ![]() With 46 pieces of 3D terrain and 40 stunning hero and monster miniatures to draw you into the game, your greatest adventure is yet before you! Throughout your campaign, you’ll face undead lurking in the mists, demonic barbarians stalking the wilds, and even more terrifying threats. Together with your unlikely companions, you’ll begin an unexpected adventure-an adventure told across the sixteen quests of the Blood and Flame campaign. And in the northern barony of Forthyn, the stage is set for the next great confrontation between Terrinoth and the forces of darkness…įor years, your journeys have taken you across the fantasy realm of Terrinoth, venturing into dark forests, shadowy cities, ancient crypts, and misty swamps… but your true legend is about to begin.įantasy Flight Games is proud to announce Descent: Legends of the Dark, the definitive cooperative dungeon-crawling board game for one to four players!įorge your own legend together with your friends as you adventure across the vibrant fantasy realm of Terrinoth! Powered by its fully integrated free companion app, Descent: Legends of the Dark puts you in the role of a budding hero with their own playstyle and abilities. The leaders of Terrinoth are divided and fractious, unable to unite against these common threats. The demon-tainted Uthuk Y’llan barbarians stalk the realm and the undead servants of Waiqar the Undying venture beyond their borders for the first time in memory. Preorder from our online store or in person today 4/17/2023 0 Comments Arrsync incremental vs whole file![]() 1 egdoc egdoc 18 Jan 28 13:45 /home/egdoc/.bash_logout The count of hard links associated with an inode is reported in the output of the ls command when it is called with the -l option: $ ls -l ~/.bash_logout When the count of hard links for an inode reaches 0, the inode itself is deleted and so the referenced blocks on the disk become usable by the operating system (the actual data is not deleted, and can be sometimes recovered, unless it is overwritten by new data). Hard links have two major limitations: they don’t work across filesystems and cannot be used for directories. All files have (of course) at least one hard link. What we commonly call “file names” are just human-friendly references to inodes established inside directories.Ī directory can contain more then one reference to the same inode: those references are what we call hard_links. An inode is a data structure on the filesystem which contains various information about a file or a directory (which, by the way, is just a “special” kind of file), such as its permissions and the location of the hard disk blocks containing the actual data.Īt this point you may think the name of a file is also “stored” into its inode: this is not the case. To understand how hard_links work, we must focus on the concept of inode. The ln command generates hard links by default if we want to create symbolic links we must invoke it with the -s option (short for -symbolic). On Unix-based systems like Linux we have two types of “links”: hard and symbolic. In other words, it does not overwrite the existing file.Before we proceed further, and learn how to create incremental backups with rsync, we should take some time to clearly grasp the difference between symbolic and hard, links, since the latter will have a crucial role in our implementation (you can skip this part if it sounds obvious to you). Here, rsync correctly sees that all files total 4 bytes, but that only 2 need to be sent. This establishes that an initial rsync sends 2 bytes of data from source to target dirs. ![]() The source files and the existing files in the destination. Of data sent over the network by sending only the differences between In the general case this flag should not be used (and indeed it conflicts with some other options such as -sparse).įrom the man page: It is famous for its delta-transfer algorithm, which reduces the amount This is often less efficient in time but avoids having two full copies of the destination file on the remote filesystem simultaneously. The -inplace flag tells rsync to build the destination file directly in place. The disadvantage of this flag is that a file 90% transferred before interruption can end up being replaced with the same file only 10% transferred before interruption. (Otherwise, a partially transmitted file is discarded.) The advantage of this flag is that time and bandwidth spent transferring a file is not wasted when the rsync is interrupted and retried. The -partial flag tells rsync to keep and use any partially transmitted file as the target if the connection is interrupted for any reason. (See my answer for Smarter filetransfers than rsync? for some clarity over this difference.) changes between the source and destination, or as a full copy. The new version can be created either using deltas, i.e. Rsync will generally create a new version of a file alongside the destination, and then switch it across to the destination name at the last moment, when it is complete. 4/17/2023 0 Comments Heavy metal machines no abreFinally, there is a discussion of the genetic and molecular basis of metal tolerance in microbes, with special reference to the genomics of heavy metal accumulator plants and the identification of functional genes involved in tolerance and detoxification. ![]() An assessment of the current status of technology deployment and suggestions for future bioremediation research has also been included. Also, advances in bioremediation technologies and strategies to explore these immense and valuable biological resources for bioremediation are discussed. In view of this, the present review investigates the abilities of microorganisms and plants in terms of tolerance and degradation of heavy metals. The role of microorganisms and plants in biotransformation of heavy metals into nontoxic forms is well-documented, and understanding the molecular mechanism of metal accumulation has numerous biotechnological implications for bioremediation of metal-contaminated sites. Prolonged exposure and higher accumulation of such heavy metals can have deleterious health effects on human life and aquatic biota. Bandene bydde p en brutal metal aften, og supportbandet The Halo Effect som er et ganske nytt band med. En konsert som egentlig skulle foreg i Oslo Spektrum, men som ble flyttet til Sentrum Scene og dermed veldig utsolgt. into natural resources like the soil and aquatic environments. Oslo, 23.09.22: Fredags kveld fyller Sentrum Scene seg til randen for dobbeltkonsert med Machine Head og Amon Amarth. This results in excess release of heavy metals such as cadmium, copper, lead, nickel, zinc etc. Em suma, por mais estranho que esse jogo possa parecer para você, ele merece uma chance e garanto que você não irá se arrepender.Heavy metals are natural constituents of the environment, but indiscriminate use for human purposes has altered their geochemical cycles and biochemical balance. Heavy Metal Machines is a 4v4 multiplayer arena combat game where two teams battle it out across deadly arenas to be the first to score three points. Todavia, o HMM me chamou bastante atenção e está me prendendo há um bom tempo. There are 10 achievements to unlock in Heavy Metal Machines worth a total of 1000 gamerscore. Eu, particularmente, nunca gostei de MOBAs devido a essa enorme quantidade de variáveis e ao tempo de "estudo" do jogo demandado, já tento testado os mais populares, como League of Legends e Dota 2, mas não me agradando de nenhum deles. Aqui, a simplicidade foi exaltada, fazendo que seja muito mais fácil e rápido para um jogador novo se adaptar ao gameplay. Heavy Metal Machines is now free-to-play on Xbox One, Xbox Series XS, PS4 and PS5. Por outro lado, o HMM agrada principalmente àqueles jogadores mais casuais, que não possuem 140 horas disponíveis para testar cada estratégia com cada personagem e os 45 upgrades presentes em cada partida dos MOBAs. Diferentemente dos demais games nos quais HMM busca inspiração, ele possui muito mais freneticidade, tento em vista que o jogo se baseia em uma corrida e o jogador controla o piloto com o mouse. ![]() No entanto, o que chama a atenção para o título são as suas mecânicas e jogabilidade. After a successful launch on PC, Hoplon Infotainment will be inviting console players to get behind the wheel in the Free-to-Play Multiplayer Online Vehicular Combat game Heavy Metal Machines early next year. HMM, embora seja inovador, possui aspectos consolidados nos MOBAs, que agradam a quem curte o estilo de jogo, como as habilidades individuais de cada piloto, a possibilidade de criação de estratégias, classes de personagens etc. Get ready for some cross-platform mayhem Hoplon Infotainment is thrilled to announce that Heavy Metal Machines will be coming to consoles next year. ![]() Bandene bydde på en brutal metal aften, og supportbandet The Halo Effect som er et ganske nytt band med. En konsert som egentlig skulle foregå i Oslo Spektrum, men som ble flyttet til Sentrum Scene og dermed veldig utsolgt. Download Heavy Metal Machines Wallpaper for free in different resolution ( HD Widescreen 4K 5K 8K Ultra HD ), Wallpaper support different devices like Desktop PC or Laptop, Mobile and tablet. Heavy Metal Machines (HMM) tinha tudo pra ser apenas mais um MOBA, mas o título foge à mesmice e tenta inovar o gênero de uma maneira muito Heavy Metal Machines (HMM) tinha tudo pra ser apenas mais um MOBA, mas o título foge à mesmice e tenta inovar o gênero de uma maneira muito criativa. 2 days ago &0183 &32 Oslo, 23.09.22: Fredags kveld fyller Sentrum Scene seg til randen for dobbeltkonsert med Machine Head og Amon Amarth. Description: Heavy Metal Machines is part of Games Collection and its available for Desktop Laptop PC and Mobile Screen. 4/17/2023 0 Comments Regex expression![]() Among the first appearances of regular expressions in program form was when Ken Thompson built Kleene's notation into the editor QED as a means to match patterns in text files. Regular expressions entered popular use from 1968 in two uses: pattern matching in a text editor and lexical analysis in a compiler. Other early implementations of pattern matching include the SNOBOL language, which did not use regular expressions, but instead its own pattern matching constructs. These arose in theoretical computer science, in the subfields of automata theory (models of computation) and the description and classification of formal languages. Regular expressions originated in 1951, when mathematician Stephen Cole Kleene described regular languages using his mathematical notation called regular events. Stephen Cole Kleene, who introduced the concept Most general-purpose programming languages support regex capabilities either natively or via libraries, including Python, C, C++, Java, Rust, OCaml, and JavaScript. Regular expressions are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Different syntaxes for writing regular expressions have existed since the 1980s, one being the POSIX standard and another, widely used, being the Perl syntax. They came into common use with Unix text-processing utilities. The concept of regular expressions began in the 1950s, when the American mathematician Stephen Cole Kleene formalized the concept of a regular language. ![]() Regular expression techniques are developed in theoretical computer science and formal language theory. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation. ) (?= ) At least two spaces are matched, but only if they occur directly after a period (.) and before an uppercase letter.Ī regular expression (shortened as regex or regexp sometimes referred to as rational expression ) is a sequence of characters that specifies a search pattern in text. |
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