[ANN] lua-discount 1.2.10

["A.S. Bradbury" <asb@...>]

I'm pleased to announce the release of lua-discount 1.2.10.
lua-discount is a binding to Discount, a fast C implementation of the
Markdown text to HTML markup system. The biggest feature of this
release is the addition of the "nohtml" flag, which disables embedded
html. See the readme copied below for a full changelog, and a simple
benchmark against markdown.lua.

# lua-discount

A binding to [Discount](http://www.pell.portland.or.us/~orc/Code/discount/), a
fast C implementation of the
[Markdown](http://daringfireball.net/projects/markdown) text to HTML markup
system. Discount passes the Markdown test suite.

## Project links
* [Home](http://asbradbury.org/projects/lua-discount/)
* [Download](http://luaforge.net/projects/lua-discount/)
* [Documentation](http://asbradbury.org/projects/lua-discount/#usage)
* [Source](http://github.com/asb/lua-discount/)

## Release history
* lua-discount-1.2.10 (2008-09-03)
  * update to upstream Discount 1.2.10
  * support the `"nohtml"` option, to disable embedded html.
  * compile to use relaxed emphasis, meaning underscores don't count when
    they're in the middle of a word.
  * add some tests
  * include results of a simple benchmark in the readme
* lua-discount-1.2.7 (2008-08-03)
  * first public release

## See also
* [Discount](http://www.pell.portland.or.us/~orc/Code/discount/)
* [Markdown syntax](http://daringfireball.net/projects/markdown/syntax)
* [markdown.lua](http://www.frykholm.se/files/markdown.lua)

## Performance
Thanks to the underlying Discount implementation, lua-discount is incredibly
fast. Benchmarking markdown.lua 0.32 against lua-discount 1.2.10 by parsing
the [Markdown syntax
document](http://daringfireball.net/projects/markdown/syntax.text) 100 times
gives the following result (all figures are in seconds):

                       user     system      total       real
    lua-discount   0.170000   0.000000   0.170000   0.177374
    markdown.lua  48.530000   0.000000  48.530000  48.524910

## [Usage](id:usage)
Note that `require("discount")` returns a single function, which you are
responsible for giving a suitable name. Example:

    discount = require("discount")

    local markdown_string = [[
      # Demonstration
      This is a demonstration of lua-discount. Passing the options `"nolinks"`
      disables links such as [this](http://example.com).
      ]]

      local html_string = discount(markdown_string, "nolinks")

The `discount` function takes as its first argument the Markdown string to
convert, and for its subsequent arguments takes any combination of the
following strings as options:

=`"nolinks"`=
    do not allow `<a` or expand Markdown links.
=`"noimages"`=
    do not allow `<img` or expand Markdown images.
=`"nopants"`=
    disable [SmartyPants](http://daringfireball.net/projects/smartypants/)
    processing.
=`"nohtml"`=
    disallow embedded html by replacing all `<` with `&lt;`.
=`"tagtext"`=
    don't expand `*` or `_` when used for emphasis.
=`"noext"`=
    do not process
    [pseudo-protocols](http://www.pell.portland.or.us/~orc/Code/discount/#pseudo)
=`"cdata"`=
    generate output suitable for use as data in an XML document.
= `"embed"`=
    equivalent to specifying `"nolinks"`, `"noimages"` and `"tagtext"`.

## License and acknowledgements
lua-discount is distributed under [a BSD-style
license](http://github.com/asb/lua-discount/tree/master/LICENSE).

This product includes software developed by [David Loren
Parsons](http://www.pell.portland.or.us/~orc).

## Contact
Author: A.S. Bradbury
Email: <asb@asbradbury.org>
Homepage: <http://asbradbury.org/>