Academic literature on the topic 'Regular expressions and languages'

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Journal articles on the topic "Regular expressions and languages"

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HAN, YO-SUB, YAJUN WANG, and DERICK WOOD. "INFIX-FREE REGULAR EXPRESSIONS AND LANGUAGES." International Journal of Foundations of Computer Science 17, no. 02 (2006): 379–93. http://dx.doi.org/10.1142/s0129054106003887.

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We study infix-free regular languages. We observe the structural properties of finite-state automata for infix-free languages and develop a polynomial-time algorithm to determine infix-freeness of a regular language using state-pair graphs. We consider two cases: 1) A language is specified by a nondeterministic finite-state automaton and 2) a language is specified by a regular expression. Furthermore, we examine the prime infix-free decomposition of infix-free regular languages and design an algorithm for the infix-free primality test of an infix-free regular language. Moreover, we show that w
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Hashiguchi, Kosaburo, Yoshito Wada, and Shuji Jimbo. "Regular binoid expressions and regular binoid languages." Theoretical Computer Science 304, no. 1-3 (2003): 291–313. http://dx.doi.org/10.1016/s0304-3975(03)00137-3.

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Nagy, Benedek. "Union-Freeness Revisited — Between Deterministic and Nondeterministic Union-Free Languages." International Journal of Foundations of Computer Science 32, no. 05 (2021): 551–73. http://dx.doi.org/10.1142/s0129054121410070.

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Union-free expressions are regular expressions without using the union operation. Consequently, (nondeterministic) union-free languages are described by regular expressions using only concatenation and Kleene star. The language class is also characterised by a special class of finite automata: 1CFPAs have exactly one cycle-free accepting path from each of their states. Obviously such an automaton has exactly one accepting state. The deterministic counterpart of such class of automata defines the deterministic union-free (d-union-free, for short) languages. In this paper [Formula: see text]-fre
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Barceló, Pablo, Juan Reutter, and Leonid Libkin. "Parameterized regular expressions and their languages." Theoretical Computer Science 474 (February 2013): 21–45. http://dx.doi.org/10.1016/j.tcs.2012.12.036.

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CÂMPEANU, CEZAR, KAI SALOMAA, and SHENG YU. "A FORMAL STUDY OF PRACTICAL REGULAR EXPRESSIONS." International Journal of Foundations of Computer Science 14, no. 06 (2003): 1007–18. http://dx.doi.org/10.1142/s012905410300214x.

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Regular expressions are used in many practical applications. Practical regular expressions are commonly called "regex". It is known that regex are different from regular expressions. In this paper, we give regex a formal treatment. We make a distinction between regex and extended regex; while regex represent regular languages, extended regex represent a family of languages larger than regular languages. We prove a pumping lemma for the languages expressed by extended regex. We show that the languages represented by extended regex are incomparable with context-free languages and a proper subset
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Kutrib, Martin, and Matthias Wendlandt. "Expressive capacity of subregular expressions." RAIRO - Theoretical Informatics and Applications 52, no. 2-3-4 (2018): 201–18. http://dx.doi.org/10.1051/ita/2018014.

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Different types of subregular expressions are studied. Each type is obtained by either omitting one of the regular operations or replacing it by complementation or intersection. For uniformity and in order to allow non-trivial languages to be expressed, the set of literals is a finite set of words instead of letters. The power and limitations as well as relations with each other are considered, which is often done in terms of unary languages. Characterizations of some of the language families are obtained. A finite hierarchy is shown that reveals that the operation complementation is generally
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Gelle, Kitti, and Szabolcs Iván. "Regular Expressions for Muller Context-Free Languages." Acta Cybernetica 23, no. 1 (2017): 349–69. http://dx.doi.org/10.14232/actacyb.23.1.2017.19.

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Breveglieri, L. "Fair expressions and regular languages over lists." RAIRO - Theoretical Informatics and Applications 31, no. 1 (1997): 15–66. http://dx.doi.org/10.1051/ita/1997310100151.

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Sakharov, Alexander. "Annotated regular expressions and input-driven languages." Information Processing Letters 159-160 (July 2020): 105958. http://dx.doi.org/10.1016/j.ipl.2020.105958.

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Hashiguchi, Kosaburo, Naoto Sakakibara, and Shuji Jimbo. "Equivalence of regular binoid expressions and regular expressions denoting binoid languages over free binoids." Theoretical Computer Science 312, no. 2-3 (2004): 251–66. http://dx.doi.org/10.1016/j.tcs.2003.09.005.

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Dissertations / Theses on the topic "Regular expressions and languages"

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Andersson, Adam, and Ludwig Hansson. "Modernizing the Syntax of Regular Expressions." Thesis, Blekinge Tekniska Högskola, Institutionen för programvaruteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-19895.

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Context Writing and working with regular expressions could be a slow and tedious task,which is mainly because of its syntax, but also because there exist several different dialectswhich easily could cause confusion. Even though regular expression has been widely used forparsing and programming language design, they are now frequently used for input validationand seen in common applications such as text editors. Objectives The main objectives of our thesis are to determine whether or not a regularexpression language that is more like the surrounding programming language would increaseusability,
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Miklarz, Clément. "Etude d'extensions des langages déterministes." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMR059/document.

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Cette thèse a pour but d’étudier des propriétés structurelles d’automates étendant celle du déterminisme, et les langages pouvant être dénotés par une expression rationnelle dont l’automate des positions présente l’une de ces propriétés. Si Book et al. ont montré que tous les langages rationnels peuvent être reconnus par un automate des positions non-ambigu, Brüggemann-Klein et Wood ont montré que ceux pouvant l’être par un automate des positions déterministe forment une famille strictement incluse dans celle des rationnels. Nous nous intéressons aux extensions de cette famille, en cherchant à
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Teichmann, Markus. "Expressing Context-Free Tree Languages by Regular Tree Grammars." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-224756.

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In this thesis, three methods are investigated to express context-free tree languages by regular tree grammars. The first method is a characterization. We show restrictions to context-free tree grammars such that, for each restricted context-free tree grammar, a regular tree grammar can be constructed that induces the same tree language. The other two methods are approximations. An arbitrary context-free tree language can be approximated by a regular tree grammar with a restricted pushdown storage. Furthermore, we approximate weighted context-free tree languages, induced by weighted linear non
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Chandrasekhar, Muthyala. "Area efficient PLA's for the recognition of regular expression languages." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65399.

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Aljaloud, Saud. "An investigation into the performance of regular expressions within SPARQL query language." Thesis, University of Southampton, 2019. https://eprints.soton.ac.uk/428044/.

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SPARQL has not simply been the standard querying language for the Resource Description Framework (RDF) within the Semantic Web, but it has also gradually become one of the main querying languages for the graph model, in general. To be able to process SPARQL in a more efficient manner, an RDF store (as a DBMS) has to be used. However, SPARQL faces huge performance challenges for various reasons: the high exibility of RDF model, the fact that the SPARQL standardisation does not always focus on the performance side, or the immaturity of RDF and SPARQL in comparison to some other models such as SQ
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Memeti, Suejb. "Automatic Java Code Generator for Regular Expressions and Finite Automata." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-20486.

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Fransson, Tobias. "Simulators for formal languages, automata and theory of computation with focus on JFLAP." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-18351.

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This report discusses simulators in automata theory and which one should be best for use in laboratory assignments. Currently, the Formal Languages, Automata and Theory of Computation course (FABER) at Mälardalen University uses the JFLAP simulator for extra exercises. To see if any other simulators would be useful either along with JFLAP or standalone, tests were made with nine programs that are able to graphically simulate automata and formal languages. This thesis work started by making an overview of simulators currently available.After the reviews it has become clear to the author that JF
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Ulus, Dogan. "Pattern Matching with Time : Theory and Applications." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAM003/document.

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Les systèmes dynamiques présentent des comportements temporels qui peuvent être exprimés sous diverses formes séquentielles telles que des signaux, des ondes, des séries chronologiques et des suites d'événements. Détecter des motifs sur de tels comportements temporels est une tâche fondamentale pour comprendre et évaluer ces systèmes. Étant donné que de nombreux comportements du système impliquent certaines caractéristiques temporelles, le besoin de spécifier et de détecter des motifs de comportements qui implique des exigences de synchronisation, appelées motifs temporisés, est évidente.Cepen
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Berglund, Martin. "Complexities of Order-Related Formal Language Extensions." Doctoral thesis, Umeå universitet, Institutionen för datavetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-88235.

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The work presented in this thesis discusses various formal language formalisms that extend classical formalisms like regular expressions and context-free grammars with additional abilities, most relating to order. This is done while focusing on the impact these extensions have on the efficiency of parsing the languages generated. That is, rather than taking a step up on the Chomsky hierarchy to the context-sensitive languages, which makes parsing very difficult, a smaller step is taken, adding some mechanisms which permit interesting spatial (in)dependencies to be modeled. The most immediate e
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Teichmann, Markus [Verfasser], Heiko [Akademischer Betreuer] [Gutachter] Vogler, and Frank [Gutachter] Drewes. "Expressing Context-Free Tree Languages by Regular Tree Grammars / Markus Teichmann ; Gutachter: Heiko Vogler, Frank Drewes ; Betreuer: Heiko Vogler." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://d-nb.info/1133109616/34.

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Books on the topic "Regular expressions and languages"

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Oram, Andy, ed. Mastering Regular Expressions. 2nd ed. O'Reilly, 2002.

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Oram, Andy, ed. Mastering Regular Expressions. 3rd ed. O'Reilly Media, 2006.

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Automating InDesign with regular expressions. O'Reilly, 2006.

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Sams teach yourself regular expressions in 10 minutes. Sams, 2004.

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Habibi, Mehran. Java regular expressions: Taming the java.util.regex engine. Apress, 2004.

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Friedl, Jeffrey E. F. Mastering Regular Expressions: Powerful techniques for Perl and other tools. Edited by Andy Oram. O'Reilly, 1998.

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Friedl, Jeffrey E. F. Mastering Regular Expressions: Powerful techniques for Perl and other tools. O'Reilly, 1997.

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Oram, Andy, ed. Regular Expression: Pocket Reference. 2nd ed. O’Reilly Media, 2009.

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Regular Expression: Pocket Reference. O’Reilly Media, 2003.

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Regular expression recipes: A problem-solution approach. Apress, 2005.

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Book chapters on the topic "Regular expressions and languages"

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Wang, Jiacun, and William Tepfenhart. "Regular Expressions and Languages." In Formal Methods in Computer Science. Chapman and Hall/CRC, 2019. http://dx.doi.org/10.1201/9780429184185-3.

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Aiken, Alexander, and Brian R. Murphy. "Implementing regular tree expressions." In Functional Programming Languages and Computer Architecture. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/3540543961_21.

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Lopes, Raul, Rodrigo Ribeiro, and Carlos Camarão. "Certified Derivative-Based Parsing of Regular Expressions." In Programming Languages. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45279-1_7.

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Baeza-Yates, Ricardo A., and Gaston H. Gonnet. "Efficient text searching of regular expressions." In Automata, Languages and Programming. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/bfb0035751.

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Gruber, Hermann, and Stefan Gulan. "Simplifying Regular Expressions." In Language and Automata Theory and Applications. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-13089-2_24.

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Sulzmann, Martin, and Peter Thiemann. "Forkable Regular Expressions." In Language and Automata Theory and Applications. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-30000-9_15.

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Lee, Jonathan, and Jeffrey Shallit. "Enumerating Regular Expressions and Their Languages." In Implementation and Application of Automata. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/978-3-540-30500-2_2.

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Gruber, Hermann, Jonathan Lee, and Jeffrey Shallit. "Enumerating regular expressions and their languages." In Handbook of Automata Theory. European Mathematical Society Publishing House, 2021. http://dx.doi.org/10.4171/automata-1/13.

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Berglund, Martin, Henrik Björklund, Frank Drewes, Brink van der Merwe, and Bruce Watson. "Cuts in Regular Expressions." In Developments in Language Theory. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38771-5_8.

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Kaminski, Michael, and Tony Tan. "Regular Expressions for Languages over Infinite Alphabets." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-27798-9_20.

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Conference papers on the topic "Regular expressions and languages"

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Losemann, Katja. "Foundations of regular expressions in XML schema languages and SPARQL." In the. ACM Press, 2012. http://dx.doi.org/10.1145/2213598.2213609.

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Alquezar, R., and A. Sanfeliu. "Learning of context-sensitive languages described by augmented regular expressions." In Proceedings of 13th International Conference on Pattern Recognition. IEEE, 1996. http://dx.doi.org/10.1109/icpr.1996.547663.

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Yongming Li and W. Pedrycz. "Regular expressions with truth values in lattice-monoid and their languages." In IEEE Annual Meeting of the Fuzzy Information, 2004. Processing NAFIPS '04. IEEE, 2004. http://dx.doi.org/10.1109/nafips.2004.1337364.

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Sakharov, Alexander. "Input-driven regular expressions (vision paper)." In SLE '18: 11th ACM SIGPLAN International Conference on Software Language Engineering. ACM, 2018. http://dx.doi.org/10.1145/3276604.3276606.

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Chen, Qiaochu, Xinyu Wang, Xi Ye, Greg Durrett, and Isil Dillig. "Multi-modal synthesis of regular expressions." In PLDI '20: 41st ACM SIGPLAN International Conference on Programming Language Design and Implementation. ACM, 2020. http://dx.doi.org/10.1145/3385412.3385988.

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Ribeiro, Rodrigo, and André Du Bois. "Certified Bit-Coded Regular Expression Parsing." In SBLP 2017: 21st Brazilian Symposium on Programming Languages. ACM, 2017. http://dx.doi.org/10.1145/3125374.3125381.

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Duru, Ismail, Banu Diri, M. Emir Özçevik, Kerim Ataseven, Gülüstan Dogan, and Su White. "Analysis of English Language Groups with Regular Expressions." In 2018 Innovations in Intelligent Systems and Applications Conference (ASYU). IEEE, 2018. http://dx.doi.org/10.1109/asyu.2018.8554018.

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Ranta, Aarne. "A multilingual natural-language interface to regular expressions." In the International Workshop. Association for Computational Linguistics, 1998. http://dx.doi.org/10.3115/1611533.1611541.

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Radanne, Gabriel, and Peter Thiemann. "Regenerate: a language generator for extended regular expressions." In GPCE '18: 17th ACM SIGPLAN International Conference on Generative Programming: Concepts and Experiences. ACM, 2018. http://dx.doi.org/10.1145/3278122.3278133.

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Ruiqi Song, Han Liu, and Tianming Xia. "Study on signatures of P2P protocols based on regular expressions." In 2008 International Conference on Audio, Language and Image Processing (ICALIP). IEEE, 2008. http://dx.doi.org/10.1109/icalip.2008.4590279.

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Reports on the topic "Regular expressions and languages"

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Leung, Hing. Regular Languages and Finite Automata. The MAA Mathematical Sciences Digital Library, 2013. http://dx.doi.org/10.4169/loci003993.

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Firoiu, Laura, Tim Oates, and Paul R. Cohen. Learning Regular Languages from Positive Evidence. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada459428.

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Benson, Vivienne, and Jenny C. Aker. Improving Adult Literacy in Niger Through Mobile Calls to Teachers. Institute of Development Studies and The Impact Initiative, 2021. http://dx.doi.org/10.35648/20.500.12413/11781/ii368.

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In Niger, one of the poorest countries in the world, 85 per cent of adults are unable to read or write, even in local languages. Adult education programmes can be a route to improving adult literacy rates, but non-governmental organisation (NGO) and government schemes are characterised with low enrolment, high dropout, and poor teacher attendance. In partnership with the Ministry of Education, Catholic Relief Services, the Sahel Group, and Tufts University, regular phone calls and motivational support were given to teachers to encourage and monitor attendance of adult education programmes betw
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