Python parser for the CommonMark Markdown spec
Pure Python port of jgm’s stmd.js, a Markdown parser and renderer for the CommonMark specification, using only native modules. Once both this project and the CommonMark specification are stable we will release the first 1.0 version and attempt to keep up to date with changes in stmd.js.
We are currently at the same development stage (actually a bit ahead because we have implemented HTML entity conversion and href URL escaping) as stmd.js. Since Python versions pre-3.4 use outdated (i.e. not HTML5 spec) entity conversion, I’ve converted the 3.4 implementation into a single file, entitytrans.py which so far seems to work (all tests pass on 2.7, 3.3, and 3.4).
Current version: 0.5.3
rolands@kamaji:~$ pip install commonmark
import CommonMark parser = CommonMark.DocParser() renderer = CommonMark.HTMLRenderer() print(renderer.render(parser.parse("Hello *World*"))) ----- or ----- rolands@kamaji:~$ cmark.py README.md -o README.html rolands@kamaji:~$ cmark.py README.md -o README.json -aj # output AST as JSON rolands@kamaji:~$ cmark.py README.md -a # pretty print generated AST rolands@kamaji:~$ cmark.py -h usage: cmark.py [-h] [-o [O]] [-a] [-aj] [infile] Process Markdown according to the CommonMark specification. positional arguments: infile Input Markdown file to parse, defaults to stdin optional arguments: -h, --help show this help message and exit -o [O] Output HTML/JSON file, defaults to stdout -a Print formatted AST -aj Output JSON AST
The tests script, CommonMark-tests.py, is pretty much a devtool. As well as running all the tests embeded in spec.txt it also allows you to run specific tests using the -t argument, provide information about passed tests with -p, percentage passed by category of test with -s, and enter markdown interactively with -i (In interactive mode end a block by inputing a line with just end, to quit do the same but with quit). -d can be used to print call tracing.
rolands@kamaji:~/utils/CommonMark-py$ python CommonMark-tests.py -h usage: CommonMark-tests.py [-h] [-t T] [-p] [-f] [-i] [-d] [-np] [-s] script to run the CommonMark specification tests against the CommonMark.py parser optional arguments: -h, --help show this help message and exit -t T Single test to run or comma seperated list of tests (-t 10 or -t 10,11,12,13) -p Print passed test information -f Print failed tests (during -np...) -i Interactive Markdown input mode -d Debug, trace calls -np Only print section header, tick, or cross -s Print percent of tests passed by category
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