cmark: Fast, accurate CommonMark (Markdown) parser and renderer
This package provides Haskell bindings for libcmark, the reference parser for CommonMark, a fully specified variant of Markdown. It includes sources for libcmark (as of commit f40e098, implementing version 0.18 of the CommonMark spec) and does not require prior installation of the C library.
cmark provides the following advantages over existing Markdown libraries for Haskell:
Speed: Conversion speed is on par with the sundown library. We were unable to measure precisely against sundown, which raised a malloc error when compiled into our benchmark suite. Relative to other implementations: cmark was 82 times faster than cheapskate, 59 times faster than markdown, 105 times faster than pandoc, and 2.8 times faster than discount.
Memory footprint: Memory footprint is on par with sundown. On one sample, the library uses a fourth the memory that markdown uses, and less than a tenth the memory that pandoc uses.
Robustness: cmark can handle whatever is thrown at it, without the exponential blowups in parsing time one can sometimes get with other libraries. (The input
bench/full-sample.md, for example, causes both pandoc and markdown to grind to a halt.)Accuracy: cmark passes the CommonMark spec's suite of over 500 conformance tests.
Standardization: Since there is a spec and a comprehensive suite of tests, we can have a high degree of confidence that any two CommonMark implementations will behave the same. Thus, for example, one could use this library for server-side rendering and commonmark.js for client-side previewing.
Ease of installation: cmark is portable and has minimal dependencies.
cmark does not provide Haskell versions of the whole
libcmark API, which is
built around mutable cmark_node objects. Instead, it
provides functions for converting CommonMark to HTML
(and other formats), and a function for converting
CommonMark to a Node tree that can be processed
further using Haskell.
A note on security: This library does not attempt to sanitize HTML output. We recommend using xss-sanitize to filter the output.
A note on stability: There is a good chance the API will change significantly after this early release.
[Skip to Readme]
Downloads
- cmark-0.3.1.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
| Versions [RSS] | 0.1.0.0, 0.1.0.1, 0.2, 0.2.0.1, 0.2.0.2, 0.3, 0.3.0.1, 0.3.1, 0.3.2, 0.3.3, 0.3.3.1, 0.3.4, 0.3.5, 0.4.0.1, 0.4.1, 0.5.0, 0.5.1, 0.5.2, 0.5.2.1, 0.5.3, 0.5.3.1, 0.5.4, 0.5.5, 0.5.5.1, 0.5.6, 0.5.6.1, 0.5.6.3, 0.6, 0.6.1 (info) |
|---|---|
| Change log | changelog |
| Dependencies | base (>=4.5 && <4.9), ghc-prim (>=0.2), text [details] |
| Tested with | ghc ==7.4.2, ghc ==7.6.3, ghc ==7.8.2 |
| License | BSD-3-Clause |
| Copyright | (C) 2015 John MacFarlane |
| Author | John MacFarlane |
| Maintainer | jgm@berkeley.edu |
| Category | Text |
| Home page | https://github.com/jgm/commonmark-hs |
| Source repo | head: git clone git://github.com/jgm/cmark-hs.git |
| Uploaded | by JohnMacFarlane at 2015-03-30T06:38:14Z |
| Distributions | Debian:0.6, Fedora:0.6.1, FreeBSD:0.4.0.1, LTSHaskell:0.6.1, NixOS:0.6.1, Stackage:0.6.1 |
| Reverse Dependencies | 11 direct, 167 indirect [details] |
| Downloads | 41261 total (228 in the last 30 days) |
| Rating | 2.25 (votes: 2) [estimated by Bayesian average] |
| Your Rating | |
| Status | Docs available [build log] Last success reported on 2015-03-30 [all 1 reports] |