Dr Parse

Dr Parse is a powerful program that deploys LR-DFA and LR1 language independent parse generators
Dr Parse is a powerful program that deploys LR-DFA and LR1 language independent parse generators with capabilities to support multiple DFA/LR parse engines in a single application. Dr Parse's grammar and rich set of utilities, tools, C/C++ Parser Foundation Classes (PFC - source optional) parse engines, coupled with complete error and grammar statistics is the key to accelerated parser development and quality.

Using Dr Parse to design and debug your next parser, will cut your development time to a mere fraction. In fact, you can create a new template project and have a simple expression parser built in less than 15 minutes.

Are you building a special language and would like to accelerate your design? Great, Dr Parse™ includes the LR-Parse Generators/Debuggers and has with over 30,000 lines of ANSI C/C++ code (optional) designed to accelerate your language development and have complete control. The source code is completely ANSI C/C++ compatible and can be ported to any platform supporting an ANSI C/C++ compiler.

Dr Parse's grammar is designed to work synergistically with semantic actions, node insertion, node deletion, operator manipulation, and error recovery which is coupled with the String, Keyword, Symbol, Type, DAG classes supplied by the Parser Foundation Classes, PFC or your own set of foundation classes.
Note: Dr Parse Pro includes full C/C++ PFC Source
Note: Dr Parse Std includes C/C++ PFC headers and Libraries. No Source

In any case, deploying Dr Parse will significantly enhance your ability to develop faster, more robust parsing applications in less time for Compilers, Languages and Data Parsing applications.

Dr Parse performs the task of reading from a source grammar and constructing the appropriate parse tables. This information is saved to a file or embedded into a language which is later used by the parse engine.

Main features of Dr Parse:

Stand Alone command line version

Complete grammar error reporting

Build and test your grammar without compiling

Parse Engines : LR-DFA thru LR1 Parse engines

Full 8-bit character support. i.e. 0x00 thru 0xFF

LR-DFA thru LR1 table sizes are dependent on grammar size

Pre/Post stack reduce Semantic action operators

Operator Precedence overrides

Conflict Shift/Reduce overrides

Case sensitivity on Keywords and/or Tokens

Pre/Post stack reduce Input token processing

Pre/Post stack reduce Keyword token processing

Automaton support: LR-DFA and LR1

Company and Vendor sections

PDF/Printed Manuals

Parser Foundation Classes (PFC) - PFC Version (Source Optional)

Object Oriented Parse Engines: Static and Dynamic

String, String Set, String Array

Keyword, Keyword Table

Symbol, Symbol Table

Type, Type Table

Cross Reference, Cross Reference Array

DAG, DAG Node

over 30,000+ lines of C/C++ code


Requirements of Dr Parse:

32 MB RAM

Borland C/C++ Builder 6 or Microsoft Visual C/C++ 12.0 or greater


Limitations of Dr Parse:

No libraries, some features disabled

30 days trial


What's New in This Release:

Complete Grammar/Action Visual

Extreme Table Optimizations

Extended Grammar for Node Support

Node/AST foundation classes

Pre/Post keyword actions

Fixed several Table generation bugs

Free Download ( Evaluation | 5.4 MB )