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BLAKE: A language designed for programming I

EDUCATION AND INFORMATION TECHNOLOGIES 2010年第4期15卷 277-291页

作者： Blake, Ben Cleveland State Univ 1860 E 18th Cleveland OH 44114 USA

The process of comprehending a problem, strategically developing a solution and translating the solution into an algorithm is arguably the single most important series of skills acquired during the education of an undergraduate computer science or information technology major. With this in mind, much care should be taken when choosing a programming language to deploy in the first University programming course. BLAKE, Beginners language for Acquiring Key programming Essentials, is designed specifically for use in a programming I class. BLAKE aids in enforcing fundamental object-oriented practices while simultaneously facilitating the transition to subsequent programming languages. BLAKE's major features include;consistent parameter passing, single inheritance, non-redundant control structures, a simple development environment, and hardware independent data types. The syntax remains relatively small while still facilitating a straightforward transition to industry standard programming languages.

关键词： programming language Object oriented Curriculum Syntax Grammar

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Transforming Conceptual Spatiotemporal Model into Object Model with Semantic Keeping

Transforming Conceptual Spatiotemporal Model into Object Mod...

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5th International Workshop on Semantic and Conceptual Issues in GIS

作者： Zaki, Chamseddine Servieres, Myriam Moreau, Guillaume LUNAM Univ Ecole Cent Nantes CERMA CNRSUMR 1563 Nantes France

ISBN: (纸本)9783642245732

Our work is developed in the context of spatiotemporal data modeling and more particularly of urban data modeling. Our goal is to propose a methodology describing the overall process of urban data modeling from the design phase to the implementation in an information system. For that, we propose, within a GIS, an approach based on a conceptual model specific to spatiotemporal data modeling MADS, and on an ODBMS for storing and manipulating data. MADS uses spatial and temporal types that are more precise than those of programming languages on which are based ODBMS. MADS is semantically richer than the object model, and the purpose of this paper is to present the transformation rules of this conceptual model into an object model that keeps (as close as possible) its semantics.

关键词： Spatiotemporal Modeling Conceptual Models ODBMS Transformation of models programming language GIS

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Steganography in Microsoft Office documents and ASP pages 2

Steganography in Microsoft Office documents and ASP pages

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2nd International Multi-Conference on Complexity, Informatics and Cybernetics (IMCIC 2011)

作者： Pejas, Magdalena Warsaw Univ Technol Warsaw Poland

ISBN: (纸本)9781936338207

In this paper I describe methods, how to use steganographic techniques to hide data in MS Office and Internet files. In the first chapter I present the idea of data hiding. Basic terms concerning steganography like steganographic data, function, key and capacity are explained here. In the second chapter I explain the object oriented construction of documents, which are created with MS Office software and with scripts included in dynamic web pages. I put the emphasis on the observation, how easy is to access wide range of files and their contents. The third chapter is dedicated to scripting programming. I draw attention to Visual Basic scripting language and its features. I include here the description of example objects and functions used to access basic data. which can be potentially used to hide secret information. Next chapter contains my conception how to estimate steganographic data capacity. Finally, in conclusion I underline the fact, that we do not really know, what documents and web pages really contain.

关键词： Steganography Scripts programming language Object Model Method Attribute and Data Capacity

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A Middleware for Software Evolution of Automation Software

A Middleware for Software Evolution of Automation Software

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16th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： Kuehl, Ingmar Fay, Alexander Nordex Energy Langenhorner Chaussee 600 D-22419 Hamburg Germany Helmut Schmidt Univ Fac Machine Constuct D-22043 Hamburg Germany

ISBN: (纸本)9781457700187

One of the key factors for automation systems in the domains smart grids, digital factories and modern process systems are the permanently shift of their requirements. Thus, software has to be evolve over time. This issue has been addressed by different solutions for evolving automation software. Though, they have their specific benefits, but lacks on deficiencies like a specific (non-standard) programming model, specific programming languages and a very narrow focus of a specific automation domain. In contrast to this a novel approach will be discussed to provide a more flexible and quite general solution, a common middleware, to reconfigure automation software dynamically with minimal downtime. A middleware to integrate different programming languages, container systems, frameworks, libraries, control applications and drivers as well.

关键词： Automation Containers IEC standards Java Real time systems Software automation software automation system digital factories factory automation middleware middleware programming language programming languages programming model software evolution software m

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A programming language Where the Syntax and Semantics Are Mutable at Runtime

A Programming Language Where the Syntax and Semantics Are Mu...

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作者： Christopher Graham Seaton University of Bristol

学位级别：硕士

Katahdin is a programming language where the syntax and semantics are mu- table at runtime. The Katahdin interpreter parses and executes programs ac- cording to a language denition that can be modied by the running program. Commands to modify the language denition are similar to those that dene new types and functions in other languages, and can be collected into lan- guage denition modules. Katahdin can execute programs written in any language which it has a deni- tion module for. The denition of more than one language can be composed allowing more than one language to be used in the same program, the same le, and even the same function. Data and code is shared between all lan- guages, with a function dened in one language callable from another with no binding layer. Traditional language development involves using a parser generator tool to generate a static parser from the language grammar. Katahdin s approach is to just-in-time compile a parser from the grammar as the program runs. The grammar can be modied as the program runs because the parser can be recompiled to match it. Recent research into grammar theory with parsing expression grammars and parser theory with packrat parsers provided the basis for the techniques used in Katahdin and will be referenced in this thesis along with an introduction to my additions. Katahdin is intended as a language independent interpreter and a develop- ment platform that can replace traditional static parser generators for lan- guage development. With further development Katahdin should be useable as a drop in replacement for interpreters and compilers for a wide range of languages, and as a platform for development of new languages. Using a single runtime to execute any programming language will reduce de- velopment costs to businesses. For any combination of languages used in a system, only a single runtime has to be maintained, ported between platforms and supported. The ability to use multiple languages in the same program

关键词： grammar programming language parser generator Katahdin interpreter Traditional language

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Supporting language Interoperability by Dynamically Switched Behaviors

Supporting Language Interoperability by Dynamically Switched...

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Workshop on Current Trends on Databases, Information Retrieval, Algebraic Specification and Object Oriented programming (DATESO)

作者： Kurs, Jan Vrany, Jan Bergel, Alexandre Czech Tech Univ Fac Informat Software Engn Grp Prague Czech Republic Univ Chile Dept Comp Sci Pleiad Lab Santiago Region Metropol Chile

ISBN: (纸本)9788024823911

Software programs are often written in more than one programming language as the emergence of domain specific languages testifies. language interpreters are easily embeddable and performances are usually satisfactory. However, inter-language interaction remains a field tarnished by poor performances. The reason is that alien objects are wrapped, implying the use of expensive forwarding and converting mechanism. We propose to represent alien objects as the set of different states and behaviors it may have by moving between languages, thus avoiding wrapping and conversion. We have validated our solution on integration of Java and Smalltalk programming languages.

关键词： programming language Virtual Machine Object Transitions Java Smalltalk

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Specifying and detecting meaningful changes in programs 11

Specifying and detecting meaningful changes in programs

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2011 26th IEEE/ACM International Conference on Automated Software Engineering, ASE 2011

作者： Yu, Yijun Tun, Thein Than Nuseibeh, Bashar Open University Milton Keynes United Kingdom Lero Irish Software Engineering Research Centre Limerick Ireland

ISBN: (纸本)9781457716393

Software developers are often interested in particular changes in programs that are relevant to their current tasks: not all changes to evolving software are equally important. However, most existing differencing tools, such as diff, notify developers of more changes than they wish to see. In this paper, we propose a technique to specify and automatically detect only those changes in programs deemed meaningful, or relevant, to a particular development task. Using four elementary annotations on the grammar of any programming language, namely Ignore, Order, Prefer and Scope, developers can specify, with limited effort, the type of change they wish to detect. Our algorithms use these annotations to transform the input programs into a normalised form, and to remove clones across different normalised programs in order to detect non-trivial and relevant differences. We evaluate our tool on a benchmark of programs to demonstrate its improved precision compared to other differencing approaches. © 2011 IEEE.

关键词： Cloning Grammar Java Optimized production technology Semantics Syntactics meaningful change specification meaningful changes detection normalised programs programming language software developers software engineering

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programming languages for synthetic biology

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Systems and Synthetic Biology 2010年第4期4卷 265-269页

作者： Umesh, P. Naveen, F. Rao, Chanchala Uma Maheswara Nair, Achuthsankar S. State Inter University Centre of Excellence in Bioinformatics University of Kerala Thiruvananthapuram India Travancore Analytics Technopark Trivandrum Kerala India Innovation Labs Tata Consultancy Services Madhapur Hyderabad Andhra Pradesh India

In the backdrop of accelerated efforts for creating synthetic organisms, the nature and scope of an ideal programming language for scripting synthetic organism in-silico has been receiving increasing attention. A few programming languages for synthetic biology capable of defining, constructing, networking, editing and delivering genome scale models of cellular processes have been recently attempted. All these represent important points in a spectrum of possibilities. This paper introduces Kera, a state of the art programming language for synthetic biology which is arguably ahead of similar languages or tools such as GEC, Antimony and GenoCAD. Kera is a full-fledged object oriented programming language which is tempered by biopart rule library named Samhita which captures the knowledge regarding the interaction of genome components and catalytic molecules. Prominent feature of the language are demonstrated through a toy example and the road map for the future development of Kera is also presented. © 2011 Springer Science+Business Media B.V.

关键词： Computational biology Design and construction of organisms programming language Synthetic biology

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Nástroj pro programování ve fyzikálním prostředí

Nástroj pro programování ve fyzikálním prostředí

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作者： Křen, Tomáš Charles University of Prague

The subject of this work is to implement the game conceived as an interactive physical environment in which a user creates a virtual world in hierarchical two-dimensional space by inserting, moving and connecting objects. However, the world, or his parts, also represents the syntax of a program. This is achieved mainly because the game includes different kinds of objects called functions, which occupy the same role, as a function in classic programming languages. The program also includes active agents controlled by an internal program, which is made up of these functions.

关键词： game programming language virtual world

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SHMEM+: A Multilevel-PGAS programming Model for Reconfigurable Supercomputing

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ACM TRANSACTIONS ON RECONFIGURABLE TECHNOLOGY AND SYSTEMS 2011年第3期4卷 26-26页

作者： Aggarwal, Vikas George, Alan D. Yoon, Changil Yalamanchili, Kishore Lam, Herman Univ Florida NSF Ctr High Performance Reconfigurable Comp CHRE Dept Elect & Comp Engn Gainesville FL 32611 USA

Reconfigurable Computing (RC) systems based on FPGAs are becoming an increasingly attractive solution to building parallel systems of the future. Applications targeting such systems have demonstrated superior performance and reduced energy consumption versus their traditional counterparts based on microprocessors. However, most of such work has been limited to small system sizes. Unlike traditional HPC systems, lack of integrated, system-wide, parallel-programming models and languages presents a significant design challenge for creating applications targeting scalable, reconfigurable HPC systems. In this article, we extend the traditional Partitioned Global Address Space (PGAS) model to provide a multilevel integration of memory, which simplifies development of parallel applications for such systems and improves developer productivity. The new multilevel-PGAS programming model captures the unique characteristics of reconfigurable HPC systems, such as the existence of multiple levels of memory hierarchy and heterogeneous computation resources. Based on this model, we extend and adapt the SHMEM communication library to become what we call SHMEM+, the first known SHMEM library enabling coordination between FPGAs and CPUs in a reconfigurable, heterogeneous HPC system. Applications designed with SHMEM+ yield improved developer productivity compared to current methods of multidevice RC design and exhibit a high degree of portability. In addition, our design of SHMEM+ library itself is portable and provides peak communication bandwidth comparable to vendor-proprietary versions of SHMEM. Application case studies are presented to illustrate the advantages of SHMEM+.

关键词： Design languages Performance Reconfigurable computing parallel programming programming language programming model productivity portability

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