Proposal: GSOC 2015 project -- Rewrite the Pandoc Markdown Parser

Proposal: GSOC 2015 project -- Rewrite the Pandoc Markdown Parser

[Vincent Zhao]

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Hi my name is Vincent and I'm from Peking University, China. It's my third 
year of studying computer science. Basically my research projects are 
related to high performance computing, I've got a CGO2015 submission last 
summer(if you're interested: Optimizing and auto-tuning scale-free sparse 
matrix-vector multiplication on Intel Xeon Phi 
<https://scholar.google.com/citations?view_op=view_citation&hl=en&user=RX1JK2IAAAAJ&citation_for_view=RX1JK2IAAAAJ:u5HHmVD_uO8C>). 
Besides this, I'm really into Haskell, both its theory and practice. Pandoc 
is the best application in Haskell that I've ever seen. 

So I really want to contribute in this project: Rewrite the Pandoc Markdown 
Parser <https://ghc.haskell.org/trac/summer-of-code/ticket/1660>.

It seems that you're arguing that Pandoc too large to serve some slim 
applications(Proposal: Alternate Granular Package Organization 
<https://groups.google.com/forum/#!topic/pandoc-discuss/RqX0GkpqH04>), for 
example, a simple Markdown parser which could conform CommonMark standard. 
And I think that might what I could do.

Here're the formal content:

1. I'll read through the core part of Pandoc, including the Parser 
libraries. After reading that, I'll try to extract lines that a CommonMark 
parser should need. If the size is still large, I may rewrite a small 
Parser for that standard(Basically I know how to use Parsec, and that might 
be the way I should choose).
2. After a small workable application finished, I'll work on enhancing its 
performance, as it is said that Parsec could only achieve 1/3 of JS version 
performance. Then, try to optimize this small set of Pandoc.
3. Extra: If time permits, I could help building a framework for small 
extensions just like the CommonMark parser I'll build. But I think this one 
needs all of us to discuss.

Hope to hear from you guys!

Thanks,
Vincent

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