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hi everyone today weamp;#39;re diving into the world of sqlite editors and how to leverage lexer and parser components to analyze and execute SQL commands imagine you have an SQL editor and you wanted to understand and execute SQL queries this involves breaking down the query into s parsing these s into an abstract syntax tree as and finally executing the SQL operations letamp;#39;s see how it all comes together what is a lexer first we have the lexer also known as the lexical analyzer its job is to take the raw SQL query string and break it down into s each represents a meaningful sequence of characters like keywords operators and identifiers hereamp;#39;s a snippet of our lecture implementation as you can see it reads the input string character by character identifies patterns and generates s ing ly this function ize scans through the input and classifies each segment into s like keywords select from symbols asterisk and literals what is a parser after the laxer has ized the input
