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A grammar describes the syntax of a programming language, and might be defined in Backus-Naur form (BNF). A lexer performs lexical analysis, turning text into tokens. A parser takes tokens and builds a data structure like an abstract syntax tree (AST). The parser is concerned with context: does the sequence of tokens fit the grammar? A compiler is a combined lexer and parser, built for a specific grammar.

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prohippo / ActiveWatch

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Recovery of ActiveWatch statistical text analysis from 20th Century Java code saved on a CD-ROM disk. This probably should be rewritten, but can now demonstrate AW mapping of dynamic text content and detection of unusual activity.

nlp text-mining news-aggregator n-grams statistical-analysis lexical-analysis cluster-analysis vector-model signal-to-noise dynamic-datasource content-mapping github-config finite-indexing zipf-s-law indexing-entropy indications-and-warning
  • Updated Mar 19, 2024
  • Java

melgoharyme / Java-compiler-5-phases

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A project focused on implementing the "Allocate Cursor" statement in a programming language. This repository contains code and documentation for a compiler that parses, analyzes, and generates executable code. Contributions welcome. Licensed under MIT.

java oop lexical-analysis code-generation syntax-analysis java-compiler lexical-analyzer semantic-analysis code-optimization javacompiler java-compiler-in-memory
  • Updated May 27, 2023
  • Java
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