Results 11 to 20 of about 26,553 (178)
From regexes to parsing expression grammars [PDF]
Most scripting languages nowadays use regex pattern-matching libraries. These regex libraries borrow the syntax of regular expressions, but have an informal semantics that is different from the semantics of regular expressions, removing the commutativity of alternation and adding ad-hoc extensions that cannot be expressed by formalisms for efficient ...
Sérgio Queiroz de Medeiros+2 more
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The computational power of parsing expression grammars [PDF]
We study the computational power of parsing expression grammars (PEGs). We begin by constructing PEGs with unexpected behaviour, and surprising new examples of languages with PEGs, including the language of palindromes whose length is a power of two, and a binary-counting language.
Bruno Loff, Nelma Moreira, Rogério Reis
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Computational Model for Parsing Expression Grammars [PDF]
We present a computational model for Parsing Expression Grammars (PEGs). The predecessor of PEGs top-down parsing languages (TDPLs) were discovered by A. Birman and J. Ullman in the 1960-s, B. Ford showed in 2004 that both formalisms recognize the same class named Parsing Expression Languages (PELs). A. Birman and J.
Alexander A. Rubtsov, Nikita Chudinov
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Syntax error recovery in parsing expression grammars [PDF]
Parsing Expression Grammars (PEGs) are a formalism used to describe top-down parsers with backtracking. As PEGs do not provide a good error recovery mechanism, PEG-based parsers usually do not recover from syntax errors in the input, or recover from syntax errors using ad-hoc, implementation-specific features.
Sérgio Queiroz de Medeiros+1 more
openalex +4 more sources
XML schema validation using parsing expression grammars
Schema validation is an integral part of reliable information exchange on the Web. However, implementing an efficient schema validation tool is not easy. We highlight the use of parsing expression grammars (PEGs), a recognition-based foundation for describing syntax, and apply it to the XML/DTD validation.
Kimio Kuramitsu, Shin’ya Yamaguchi
+5 more sources
Error reporting in Parsing Expression Grammars
Preprint (plus appendix) submitted to Science of Computer ...
André Murbach Maidl+3 more
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CONVERSÃO DE REGEXES PARA PARSING EXPRESSION GRAMMARS [PDF]
MARCELO OIKAWA
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Left recursion in Parsing Expression Grammars [PDF]
Las gramáticas de expresión de análisis (PEG) son un formalismo que puede describir todos los lenguajes libres de contexto deterministas a través de un conjunto de reglas que especifican un analizador de arriba hacia abajo para algún lenguaje. Los PEG son fáciles de usar y hay implementaciones eficientes de bibliotecas de PEG en varios lenguajes de ...
Sérgio Queiroz de Medeiros+2 more
openalex +6 more sources
Automatic Syntax Error Reporting and Recovery in Parsing Expression Grammars [PDF]
Error recovery is an essential feature for a parser that should be plugged in Integrated Development Environments (IDEs), which must build Abstract Syntax Trees (ASTs) even for syntactically invalid programs in order to offer features such as automated refactoring and code completion.
Sérgio Queiroz de Medeiros+2 more
+9 more sources
A verified packrat parser interpreter for parsing expression grammars [PDF]
15 pages, 15 figures, Certified Proofs and ...
Clément Blaudeau, Natarajan Shankar
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