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Text between two characters...


selecttextcharacterregular-language

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Regular expression for L = {w|w doesn't contain the substring 110} over the alphabet Σ = {0,1}...


regexregular-languagefinite-automata

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Whether this is the general approach for making a DFA for accepting prefix language of a given regul...


regular-languageautomata

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Is the language {0^n 1^n 0^k | k != n} context free?...


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Automaton that recognizes a language without 3 consecutive zeros...


regular-languagefinite-automata

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How to write a generical REGEX expression to: Σ = {a, b, c}, L = {w ∈ Σ ∗ / the first symbol of w is...


regexregular-language

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How can I allow a single space in a regex in Dart but allow other characters to be 1 or more?...


regexflutterdartregular-language

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Which programming languages have a regular grammar?...


programming-languagescompiler-theoryregular-language

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Automata theory: Formal definition of indistinguishable & distinguishable strings and example co...


regular-languagefinite-automatadfanfaautomata-theory

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Why is {a^n a^n | n >= 0} regular?...


regular-languagefsm

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Is this languages REGULAR / CONTEXT FREE but not REG / Nothing?...


context-free-grammarregular-languagecontext-free-language

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Need simple regex (regular expression) for dynamic expression...


regexexpressionregular-language

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Regular expression for [a-zA-Z]...


regexregular-language

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Regular expression without "Double or more" spaces...


htmlregular-language

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Split a string by punctuation marks (.!?;:) while excluding abbreviations...


python-3.xregexregular-language

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How should one proceed to prove (or find) if two regular expressions are same or equivalent?...


regexfinite-automataregular-languageequivalence

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Why do we use pumping lemma to prove the non-regularity of languages? WHY?...


regular-languagedfanfapumping-lemma

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Regex to Detect Zalgo...


javascriptregexstringregular-languagezalgo

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Regex-How to prevent repeated special characters?...


javac#regexpcreregular-language

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Closure property of regular languages under concatenation and star operation...


closuresregular-languagecomputation-theory

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Using string of set length with pumping lemma to prove irregularity...


regular-languagecomputation-theorypumping-lemma

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Why L={wxw^R| w, x belongs to {a,b}^+ } is a regular language...


automationregular-languagedfanfapumping-lemma

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Regular expression for the following condition...


regular-language

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Checking a string with a regular expression...


javascriptregexregular-language

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Are there any languages such that they are proper subsets of each other and satisfy these conditions...


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Given a binary alphabet {0,1}, write a regular expression that recognises all words that have an eve...


compiler-constructionregular-language

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Validating a url path with regex and excluding special characters...


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Explain regular expression in Python...


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rregexregular-language

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Regular Expression for Strings with even number of b's followed by the letter c followed by an o...


regexregular-language

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