Jul 20, 2023

Recursive descent parsing framework for Perl

RecDescent incrementally generates top-down recursive-descent text parsers from simple yacc-like grammar specifications. It provides

  • Regular expressions or literal strings as terminals tokens
  • Multiple non-contiguous productions for any rule
  • Repeated, optional and alternate subrules within productions
  • Late-bound run-time dispatched subrules
  • Full access to Perl within actions specified as part of the grammar
  • Simple automated error reporting during generation and parsing
  • The ability to commit to, uncommit to, or reject particular productions during a parse
  • Incremental extension of the parsing grammar even during a parse
  • The ability to retrieve the generated parsing code.

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