xHarbour is a portable implementation of the xBase language (Compiler & complete Run-time libraries). Hybrid Language. . Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator '&'. The "core" language can be seen as C# with an xBase syntax. 2e and 5. Xbase Model » 2. But these tools needed tighter integration with the language and the Fox style of working. Appropriate uses for DBFree: - Run DBFree and DBMax web applicationsThe Xbase language library does not only provide a compiler that generates Java code, but also an interpreter. Alaska Software pioneered with Xbase++ the implementation of intelligent and easy-to-use multi-threading technology as well as automated ISAM to SQL migration. Harbour is not an exception. 1. Xbase (formerly known as xdb, also formerly known as xBase) is a collection of specifiations, programs, utilities and a C++ class library for manipulating Xbase type datafiles and indices. Deleting a record in FoxPro (and in any other Xbase language) is a dance—a two-step—because it takes two steps to really and truly make a record go away. It is used to create or extend software programs that originally operated primarily under MS-DOS. xHarbour is a portable implementation of the xBase language (Compiler & Run-time libraries). if your SHIFT key is broken, you might want to design a case insensitive language. 0, that extends the XBase language: grammar org. Xbase Generic term for the dBASE family of database languages. xBase. 0: Tags: eclipse web: Date: Nov 21, 2023: Files: pom (3 KB) jar (11 KB) View All: Repositories: Central. The first attempt, with the FoxCode product, introduced yet another template language and a generator to write FoxBase code. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. It's practically 100% backward compatible with CA-Clipper 5. Skip to main content. X# has been built on top of Roslyn, the open source architecture behind the current Microsoft C# and Visual Basic . Visual FoxPro, commonly abbreviated as VFP, is tightly integrated with its own relational database engine, which extends FoxPro's xBase capabilities to support SQL query and data manipulation. Xbase Language Reference. 2e and 5. You can. It is a Clipper-compatible compiler which is cross-platform, running on many operating systems (DOS, Microsoft Windows, Linux, Unix variants, several BSD descendants, Mac OS X, MINIX 3, Windows CE, Pocket PC, Symbian, iPhone, QNX, VxWorks, OS/2/eComStation, BeOS/Haiku, AIX) using the. BI & Analytics. FoxCode/FoxView were included with FoxPro 1 but never really caught on; I used something called SCRIMMAGE, written by Russell Freeland, which was a generic Xbase tool. eclipse. See moreVisual FoxPro originated as a member of the class of languages commonly referred to as "xBase" languages, which have syntax based on the dBase programming language. Language compatibility is the reason that Xbase++ is the most natural migration path for Clipper and FoxPro Xbase is a partial programming language implemented in Xtext and is meant to be embedded and extended within other programming languages and domain-specific languages (DSL) written in Xtext. While there was a non-commercial predecessor to the Ashton-Tate product (Vulcan. The OODML method of performing a replace is: form. X# is an open-source development language for . Any xBase language provides a very productive way to build business and data intensive applications. You have to put the Xtend library on the classpath of the project that contains the DSL file. Clipper is an xBase compiler that implements a variant of the xBase language. You need some basic understanding of VFP, the xBASE language and SQL language to use these functions. After all an interpreter is just a big visitor. Examples: 1. These are sometimes informally known as dBASE "clones". NET, based on the xBase language. eclipse. The compiler produces portable, optimized code for a number of platforms, including Linux, Windows, macOS, Android, and iOS. Harbour's implementation of the Macro Operator allows for runtime compilation of. Harbour is not an exception. We will learn later how to define and use functions and procedures. Share. The language is based on a programming paradigm called. As a result you get a full infrastructure, including parser, linker, typechecker, compiler as well as editing support for Eclipse. g. In the third step, you will map your own DSL’s concepts to Java concepts. GitHub is where people build software. 3c, and offers many mod. Q: What are relations and differences between this 3 services you’ve been provided: Harbour Compiler, Harbour HMG, HMG-IDE. Language compatibility is the reason that Xbase++ is the most natural migration path for Clipper and FoxProXbase Language Reference. 3) Open the ODBC Data Source Administrator and click Add to create a data source name. Xtest is a sibling of Xtend (also inherits from Xbase) and an uncle of Jnario (inherits from Xtend), so their documentation may be useful as well. In this article we are going to see the history of XBASE languages and how the creation of Harbour. 0 so, I was wondering of someone knows a language similar to FoxPro with a development environment similar to Visual FoxPro 9. Other members of the xBase language family include Clipper and Recital (database). By extending the Xbase language in a DSL definition, it is also possible to introduce new operators and define a 3. As a true compiler, it translates the very popular database 4GL xBase source. It's practically 100% backward compatible with CA-Clipper 5. ERNIE-3. Harbour is not an exception. September 2015XSharp Announcement The X# Compiler -1 • Will support many dialects of XBase Core Visual Objects / Vulcan Xbase++ FoxPro dBase (X)Harbour • The Core dialect could be seen as a C# compiler with Xbase syntax. For detailed documentation, please refer to the Xbase Language Reference. Any xBase language provides a very productive way to build business and data intensive applications. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. We will learn later how to define and use functions and procedures. C# 3 361 0 0 Updated on Mar 6, 2021. In the preferred environment, the application program 1 and the Xbase language environment 21 and the client network communication means. dll; *. xBase language used in ERP PHC. SQLRDD was created to access SQL database servers like Oracle, Microsoft SQL Server, IBM DB/2, Postgres, Sybase, MySQL, Firebird and others, from xHarbour xBase language just like you are used to use DBFCDX or any other regular xBase database driver. We will learn later how to define and use functions and procedures. Every xBase language is case insensitive, which means that all the following lines are the same: function MAIN FUNCTION main FuNcTiOn mAiN Of course, this feature is beneficial only if you use it to improve the code readability. – Alex. In fact, automated and intelligent multithreading, full data-access abstraction including SQL for DBF tables and ISAM access for PostgreSQL tables, websockets/webhandlers and the object oriented programming model are just the tip of. It's practically 100% backward compatible with CA-Clipper 5. Harbour is a cross-platform compiler and is known to compile and run on MS-DOS, Windows (32 &. Browse Encyclopedia. xBase is the generic term for all programming languages that derive from the original dBASE (Ashton-Tate) programming language and database formats. Technical Details about xHarbour Extended Harbour Compiler. It is a modernized, open sourced and cross-platform version of the older Clipper system, which in turn developed from the dBase database market of the 1980s and 90s. Originally almost identical to dBASE, new commands and features over the years made Xbase languages only partially dBASE compatible. In this tutorial we will basically implement the domain model language again, but this time we will make use of the special JVM support shipped with Xtext 2. The rules are a Domain Specific Language based on the Xbase language and it bares the most resemblance to the Xtend language with some missing features (e. Xbase relies on a small runtime library on the class path. 3c, and offers many modern language extensions, and extensive Run-time libraries. org. ) The name “SQL” is read by some folks as a series of letters (“ess queue ell”) and by. In addition, the Xbase programming languages hide data type mapping from the programmer, and so does Xbase++/PostgreSQL (the value of a memo field has type. dbCreate () Creates an empty database from a array. Posts about Xailer written by vivaclipper. Easy and Safe Multithreading. NET platform. FlagShip is available for and is cross- compatible to different computer platforms, such as Linux, Unix and Microsoft Windows. Binaries (and sources) for. dBFast is an xBase compiler for DOS introduced in the latter half of the 80s that offered dBase III compatibility. They all were languages dedicated to the management of databases and equipped with specific functions to facilitate such management. (1) A dBASE-like language. No impedance mismatch. It is a Clipper-compatible compiler which is cross-platform, running on many operating systems (DOS, Microsoft Windows, Linux, Unix variants, several BSD descendants, Mac OS X, MINIX 3, Windows CE, Pocket PC, Symbian, iPhone, QNX,. With infrastructure monitoring, modern operations teams get complete observability of complex and hybrid systems,. xHarbour is a portable implementation of the xBase language ( Compiler & Run-time libraries). Last Release on Nov 21, 2023 6. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. xHarbour is a portable implementation of the Clipper/xBase language (Compiler & complete Run-time libraries). These are sometimes informally known as dBASE "clones". Alaska Software - The next generation of Xbase technology. 2e and 5. The application of Xbase is presented by means of a domain model language which serves as a tutorial example and by the implementation of the programming language Xtend. 2 Answers. As xBase languages and utilities are very popular (perhaps the most popular) for data handling applications, many parties to the ADIF proposal discussion favored using xBase files as the physical specification. Harbour is a modern computer programming language. The following chapter demonstrates how to integrate your own DSL with Java. the Xbase language uses the '^' character as an escape character; if for any reason there is a problem with writing a keyword, you can prefix it with '^', and it would work. domainmodel. Xtend is a functional and. “xBase programming language” means a set of “dialects” derived ultimately from DBIII (in the 80s) and subsequent improvements (FoxBASE, Clipper, QuickSilver in the 80s and 90s, etc. Note that due to a name collision with an earlier programming language called Go!, the language may change its name in the future. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Harbour is a free software compiler for the xBase superset language often referred to as Clipper (the language that is implemented by the compiler Clipper). Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. It will have the same features as C# 6, but will of course use the well known xBase syntax. 2e and 5. 2. In MS-Access the language world. Predefined operators can also be Xbase is a statically typed language, based on the Java removed by overriding and deactivating their default defini- type system. NET, based on the xBase language. This is an object oriented adaptation of the MiniGUI library, that supports existing code and adds new and powerful advantages from the object oriented programming. 2e and 5. By this time, the . References . On Sunday, February 28, 2016 at 5:55:23 PM UTC+1, Robert van der Hulst wrote: > We are very happy to announce the first public beta of XSharp (X#), the new XBase language for . To add this, right-click on the project and go to Java Build Path → Libraries → Add Library and. Language limited and optimized for data management. PDFOriginally is was used as a replacement programming language for Ashton Tate’s dbase II database environment that could be compiled and executed as a standalone application. " I would be happy to correct these but don't wish to step on anyone's toes in the program's community. To do so I am inheriting from XbaseInterpreter, adding my own run method and override the dispatch method doEvaluateProgram with my new abstract concepts. Large-scale knowledge enhanced pre-training for language understanding and generation}, author={Sun, Yu and Wang, Shuohuan and Feng, Shikun and Ding, Siyu and Pang, Chao and Shang, Junyuan and Liu, Jiaxiang and. Harbour is a modern computer programming language. A repository for showcasing my knowledge of the XBase programming language, and continuing to learn the language. Harbour is not an exception. SET COMPATIBLE was an attempt by Fox Software to maintain its goal of 100% compatibility with dBASE, while still innovating within the Xbase language. We would like to show you a description here but the site won’t allow us. Which is xBase language does Visual FoxPro use? Other members of the xBase language family include Clipper and Recital (database). It's practically 100% backward compatible with CA-Clipper 5. xHarbour is a portable implementation of the xBase language (Compiler & complete Run-time libraries). 2e and 5. • The other dialects will add datatypes and language constructs that are Xbase specific, such as USUAL, DATE. This is the default in SQL. A few years ago, Clipper was my bread and butter language. ). The Core language will be much like an xBase language version of the Microsoft C# compiler. These are sometimes informally known as dBASE "clones". DBFree is a freeware: originally born to keep alive the art of programming and saving the beatiful Xbase language from oblivion is nowaday a good choice for creating Rich Web Applications thanks to its support for AJAX, HTML5 and CSS3. It's practically 100% backward compatible with CA-Clipper 5. The result of a DML command is then returned to the. One major dBase feature not. Harbour is not an exception. Harbour is not an exception. has been a leading provider of software and IT services since 1991 in Puerto Rico. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Recognizing its importance as a legacy application platform and format, they have made it easier to use old database applications and associated workflows. The Xbase language is an enhanced version of the dBase programming language used to access database files whose formats were originally developed for dBase on the PC. It is 100% Clipper compatible language supporting multiple inheritance, polymorphism, object oriented programming. 2e and 5. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Our clients are using a simple file server and under 20 PCs in a small LAN. FlagShip is available for and is cross-compatible to different computer platforms, such as Linux, Unix and Microsoft Windows. xtext. Basic; Arrays; Database; Extensions; Web; How to build/run applicationsThe application of Xbase is presented by means of a domain model language which serves as a tutorial example and by the implementation of the programming language Xtend. xtext. The record pointer always points to a single record. dBase's underlying file format, the . 3c, and offers many modern language extensions, and extensive Run-time libraries. Any xBase language provides a very productive way to build business and data intensive applications. This reference documentation gets automatically refreshed. XSharp BV is the legal entity behind the new XSharp (X#) development language, a new xBase language for DotNet. Harbour consists of a compiler and runtime libraries with multiple UI and database backends, its own make system and a large collection of libraries and. Xbase is a partial programming language implemented in Xtext and is meant to be embedded and extended within other programming languages and domain-specific languages (DSL) written in Xtext. The dBase system includes the core database engine, a query system, a forms engine, and a programming language that ties all of these components together. Xbase expressions provide both control structures and program expressions in a uniform way. Last Release on Nov 21, 2023 7. Windows (MingW32, OpenWatcom, PellesC, BCC, and MSVC)Harbour is a modern computer programming language. The Core language will be much like an xBase language version of the Microsoft C# compiler. 3c, and offers many modern language extensions, and extensive Run-time libraries. Eclipse Platform and JDT Maven dependencies were updated to the 4. Harbour is not an exception. pdf) or read online for free. Our motivation behind Codex is to supplement developers’ work and increase. SQLRDD is not just SQL access. NET platform. Xbase++ is an object oriented programming language which has multiple inheritance and polymorphism. Any xBase language provides a very productive way to build business and data intensive applications. In other words, the PostgreSQL DatabaseEngine. It comes in different flavors, such as Core, Visual Objects, Vulcan. Xtext offers options on some of its generator fragments for this purpose. Harbour is a modern computer programming language. Any xBase language provides a very productive way to build business and data intensive applications. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. xHarbour Builder is a set of tools built around the open source xHarbour compiler from xHarbour. Language Engineering For Everyone! Eclipse Xtext™ is a framework for development of programming languages and domain-specific languages. The term xBase (or Xbase or XDB) is used to refer to programming languages and compatible software that derive from the original dBASE language and products. 6. It is used to create or extend software programs that originally operated primarily under MS-DOS. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Visual FoxPro 5. From HandWiki. As a true compiler, it translates the very popular database 4GL xBase source code to native. Upgrades. 3 dBase / xBase programming language. specifically came about. Harbour is the free software implementation of a multi-platform, multi-threading, object-oriented, scriptable programming language, backward compatible with Clipper/xBase. These are. SourceAI is an AI-powered tool that can generate code in any programming language from any human language description. The current plan consists of two introductory chapters, then the first part of the tutorial will cover the basic of the language, up to the procedural programming facilities and the native database-DBF file support. We would like to show you a description here but the site won’t allow us. The dBase system includes the core database engine, a query system, a forms engine, and a programming language that ties all of these components together. It is 100% Clipper compatible language supporting multiple inheritance, polymorphism, object oriented programming. * It's written in AdvPL, a xBase Language. Unlike MS-Access, there was an easy path to ad-hoc manipulations and script writing. In the new workbench, create a Java project (File → New → Project… → Java Project). All replies text/html 10/8/2008 9:32:35 PM MarciaAkins 0. Xbase is a partial programming language implemented in Xtext and is meant to be embedded and extended within other programming languages and domain-specific languages (DSL) written in Xtext. Harbour is a modern computer programming language. Download Xbase (formerly XDB) - Xbase compatible for free. Clipper is an xBase compiler that implements a variant of the xBase computer programming language. In Section 5, we take. The SML code also generated numeric quadrangle code attributes. 3c,. xBase is the generic term for all programming languages that derive from the original dBASE (Ashton-Tate) programming language and database formats. xHarbour is a portable implementation of the Clipper/xBase language (Compiler & complete Run-time libraries). 1 Type Inference method mapping for them. In spite of this, it is always necessary to develop UDFs to execute certain technical financial computations. Annotation Libraries. The domain-model example seems to just be xtext based, is there another version of the example built using xbase instead? I've installed the 2. Overview Harbour is the open/free software implementation of a cross-platform, multi-threading, object-oriented, scriptable programming language, backwards compatible. It's a complete toolset for quick migration of your complete. We would like to show you a description here but the site won’t allow us. The following list defines the convention for. HTTP Clients. It comes in different flavors, such as Core, Visual Objects, Vulcan. Thi. Harbour is a cross-platform compiler and is known to compile and run on MS-DOS, Windows (32 & 64), Windows CE, Pocket PC, OS/2, GNU/Linux and Mac OSX. The term xBase (or Xbase or XDB) is used to refer to programming languages and compatible software that derive from the original dBASE language and products. Language compatibility is the reason that Xbase++ is the most natural migration path for VFP developers. texts include essays, biographies, short stories, and poetry. X# is an open-source development language for . Harbour is not an exception. Harbour is not an exception. texts include consumer and workplace texts. Although it worked quite well, learning yet another language just to code screens was a burden, and acceptance was not universal. Contents. the full version of the xHarbour Language Reference Guide in the demo installer (the . Other members of the xBase language family include Clipper and Recital (database). Xbase++ is a 100% Clipper compatible xbase language, enriched. dBase's underlying file format, the . Use this tag for questions about coding in that language. It supports the xBase data types, including Codeblocks. Browse free open source XBase/Clipper Software and projects below. Many commands operate on the record pointed to. 00. It supports multiple dialects and is still a partly closed source language. These are sometimes informally known as dBASE "clones". Multi-threading and workspaces. It is based on the XBase language dialect and conventions. You can tell it was invented by people who had to deal with data and tables all day long. 17 / Eclipse 2020-09 versions. This section contains functions that make many date computations easier to perform. More documentation here. Xbasic is Alpha Anywheres built-in programming language. success, the package was subsequently sold to George Tate (founder of Ashton Tate). 2e and 5. As xBase languages and utilities are very popular (perhaps the most popular) for data handling applications, many parties to the ADIF proposal discussion favored using xBase files as the physical specification. xbase. It is a modernized, open sourced and cross-platform version of the older Clipper system, which in turn developed from the dBase database market of the 1980s and 1990s. Unlike most database management systems, Visual FoxPro is a full-featured, dynamic programming language that does not require the use of an additional. Harbour consists of the xBase language compiler and the runtime libraries with different terminal plugins and different databases (not just DBF). More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Clipper compiled application into an EXE file which help in protecting source code as well as greatly increasing the speed of such ap- plication. • Store data, such as for global replacements and updates to field data (LOOKUP. Its intuitive design, xBASE language, an active multitiered repository make it easy to use—its power and extendibility will keep you using it. xHarbour Builder is a set of tools built around the open source xHarbour compiler from xHarbour. The dBase system includes the core database engine, a query system, a forms engine, and a programming language that ties all of these components together. We would like to show you a description here but the site won’t allow us. About Alaska Software: founded in 1997 with offices in Grand Junction, CO, New York City, NY, and in the metropolitan area of Frankfurt/Main, Germany concentrating solely upon the development and improvement of Xbase++ as a technology platform. example. In the third step, you will map your own DSL’s concepts to Java concepts. However, modern database management systems often are case-sensitive, so upper or mixed case names should no longer be used! dBase (also stylized dBASE) was one of the first database management systems for microcomputers and the most successful in its day. Limited to Server. Xtend is a functional and. Click here to review the Harbour. For questions about the line and polygon clipping library use the tag clipperlib instead. . , Set (“Deleted”) These commands and functions control deletion of records from a table. Besides the mentioning of xHarbour, I would appreciate mentioning the Harbour-project, the originating source for xHarbour, that's just as mature as xHarbour in the xBase language, but lacking the optional GUI and some RDD libraries, that maybe you won't be using, when switching from plain Clipper. We will do this in four stages: First, you will learn how to refer to existing Java elements from within your language. fields ["fieldName"]. Although they never got their GUI conventions right, the XBase language was outstanding for ad-hoc and small-scale data chomping. Clipper is an xBase compiler that implements a variant of the xBase computer programming language. If you really have to go your own way you can still study the Xbase grammar or the OCL grammar in org. It supports multiple dialects of xBase. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. 0-xbase-zh Introduction ERNIE 3. In India, for 20+ years, we were all using dBase, FoxBase, FoxPro in one vertical. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. So, in each open table, Xbase maintains a record pointer. Download xHarbour Extended Harbour Compiler for free. It's practically 100% backward compatible with CA-Clipper 5. These are sometimes informally known as dBASE "clones". Harbour is not an exception. 0. X# (X-sharp) is a free and open source language based on XBASE language, developed for the compiler and also based on the Roslyn compiler for C#. Find an online education degree for you. 3c, and offers many modern language extensions, and extensive Run-time libraries. Any xBase language provides a very productive way to build business and data intensive applications. Originally almost identical to dBASE, new commands and features over the. Though xHarbour is 100% backward compatible with the Clipper Language, xHarbour Builder adds many modern features and tools found in. More than 100 million people use GitHub to discover, fork, and contribute to over 330 million projects. XBase is a general-purpose database programming language. res, *. NET. It will have the same features as C# 6, but will of course use the well known xBase syntax. The principal players in the MS-DOS portion of this. Any xBase language provides a very productive way to build business and data intensive applications. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. The Five Steps to Your JVM Language tutorial says this, I had just forgotten to do it :-. 3c, and offers many modern language. X# has been built on top of Roslyn, the open source architecture behind the current Microsoft C# and Visual Basic . examples. The X# front-end framework is used to design web applications and websites, including HTML allowed in buttons, forms. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. Harbour consists of the xBase language compiler and the runtime libraries with different terminal plugins and different databases (not just DBF). They are known as xBase Language. It is used to create or extend software programs that originally operated primarily under MS-DOS. Built-in data types [edit | edit source] Harbour has 6 scalar types : Nil, String, Date, Logical, Number, Pointer, and 4 complex types: Array, Object, CodeBlock, and Hash. We would like to show you a description here but the site won’t allow us. 1 Type Inference method mapping for them. NET, based on the xBase language. The Xbase++ language reference uses capitalization and type styles to distinguish between language elements and discussion of them. Harbour is a modern computer programming language, primarily used to create database/business programs. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. NET platform to the Visual Objects language, opening up a whole. eclipse. Harbour is a modern computer programming language. NET compilers. dbCommit () Updates all index and database buffers for a given work area. exe; *. The grammar specifications for Xbase and Xtest are also available for your reference. PostgreSQL ISAM: With the PostgreSQL DatabaseEngine (PGDBE), for the first time it is possible to move existing . The PAD SPACE option pads the shorter string with spaces and then begins comparing the strings character by character from left to right. NET, based on the xBase language. Toggle dBase / xBase programming language subsection. BI & Analytics. Mocking. (Structured GUI Language) programming. Posts about RDDSQL written by vivaclipper. See. September 2015XSharp Announcement The X# Compiler -1 • Will support many dialects of XBase Core Visual Objects / Vulcan Xbase++ FoxPro dBase (X)Harbour • The Core dialect could be seen as a C# compiler with Xbase syntax. "Harbour as every xBase language is case insensitive and can optionally accept keywords written just by first four characters. Some predefined language constructs might be useful for you, e. Then you will use Xbase to refer to generic types. Any xBase language provides a very productive way to build business and data intensive applications. NO PAD follows the xBase convention of truncating the longer string before doing the comparison. Alaska Software The Company. 1 Type Inference method mapping for them. Xbase is a programming language that combines both traditional programming concepts and database management functions. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. All of these solutions help their customers boost their productivity. . With Xtext™ you define your. We would like to show you a description here but the site won’t allow us. Clipper is an xBase compiler that implements a variant of the xBase computer programming language. (The Xbase concept most similar to SQL’s point of view is the FOR clause.