Writing BibTex parser

How should I start writing a parser for BibTex files. As the initial design I see following steps.

1. List down grammar
2. Build a tokenizer
3. Do parsing of token stream against开发者_开发知识库 grammar

We also need some error mechanism, so the users uploading bibtex files can know line numbers where is the error in their BibTex files. I am looking for community opinion to target this problem.

(please point if there are any existing open source C# or VB.NET BibTex parsers.)

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There are many tools available to assist you with this, such as ANTLR or the GOLD Parsing System. I usually use the latter to create my parser grammars.

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I've published an open source library for BibTex format (load/save/export to Excel), allowing both non-typed (Key/Value dictionary) and strong typed access to the BibTex entries.

It might not fit well your purpose, as it is weak on validation (has none of it :) ), but might help anyway:

• Nuget Package
• GitHub repository
• About the package on my web site