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Here is the general approach: Read a dictionary file and organize all words in a trie data structure. Many Unix systems have such files in the /usr/share/dict/ directory. Find possible matches of a prefix of your input in the trie. This will usually produce multiple matches, for example theologyisabout begins with theology and the. If we remove the matched ...


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Or is it possible to parse it at all? Some say it's possible, and that even webbrowsers use this feature to display web pages. what are the right ways to parse HTML? Basically you need a parser able to express the idea that an html element can be composed of other html elements. <div> some text <div> nested element!! ...


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This doesn't directly answer your question, but Russ Cox calls these "one-pass regular expressions." Given such a regexp, it's possible to implement an optimization where an NFA simulation only takes "one pass" (i.e., never backs up), which means you don't have to do as much work tracking capture groups. Here's what he has to say: Let's define a ...


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You can use JQuery. In this example, you can't enter 'w' into the text box. <input type='text' id='t' value='texttext' /> $("#t").keypress(function(e) { if (e.which === "w".charCodeAt(0)) { e.preventDefault(); } });


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I'm surprised you didn't find your answer in Sebesta's Concepts of Programming Languages... In short: Recogniser: sentences -> grammar. Application: to check if given sentences are part of the language grammar. This is an essential part of a compiler or interpreter. Generator: grammar -> sentences. Application: to provide examples of valid sentences in the ...



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