Lunamark

Lunamark is a lua library for conversion between markup formats. Currently markdown is the only supported input format, and HTML and LaTeX are the only supported output formats. But lunamark's modular architecture makes it easy to add new parsers and writers. Parsers are written using a PEG grammar.

Installing

Lunamark can be installed using luarocks:

git pull http://github.com/jgm/lunamark.git
cd lunamark
luarocks make

Using

lunamark.converter(in_format, out_format, options)

returns a function from string to string. in_format is currently limited to markdown; out_format can be html or latex. options is a table; currently the only supported option is modify_syntax, a function from a grammar table to a grammar table that can ring changes on the standard markdown syntax.

require "luarocks.require"
require "lunamark"

-- read stdin
inp = io.read("*a")

-- note: these are functions:
markdown2html = lunamark.converter("markdown", "html")
markdown2latex = lunamark.converter("markdown", "latex")
-- this one changes the syntax definition:
markdown2htmlCAPS = lunamark.converter("markdown", "html",
                     { modify_syntax = function(t) t.Str = t.Str / string.upper; return t end })

io.write("HTML:\n",markdown2html(inp))
io.write("-----\n")
io.write("LaTeX:\n",markdown2latex(inp))
io.write("-----\n")
io.write("HTML CAPS:\n",markdown2htmlCAPS(inp))