LaTeX like macro for markdown
tl;dr: I made a simple macro system for my blog. Now I juste have to write %latex and it show as LaTeX.
I added a macro system for my blog system. When we are used to LaTeX this lack can be hard to handle. Particularly when using mathematical notations. In the header of my files I simply write:
macros:
test: "This is a macro test"
latex: '<span style="text-transform: uppercase">L<sup style="vertical-align: 0.15em; margin-left: -0.36em; margin-right: -0.15em; font-size: .85em">a</sup>T<sub style="vertical-align: -0.5ex; margin-left: -0.1667em; margin-right: -0.125em; font-size: 1em">e</sub>X</span>'
In the body it will replace every occurrence of:
- %test by This is a macro test,
- and %latex by LaTeX.
The source code is really simple.
For nanoc
user, simply put this file in your lib
directory.
# usage:
# ---
# ...
# macros:
# test: "passed test"
# ---
# ...
# Here is a This is a macro test.
#
class Macros < Nanoc3::Filter
identifier :falacy
attr_accessor :macro
def initialize(arg)
super
@macro={}
@macro[:tlal] = %{<span class="sc"><abbr title="Trop long à lire">tlàl</abbr> : </span>}
@macro[:tldr] = %{<span class="sc"><abbr title="Too long; didn't read">tl;dr</abbr>: </span>}
if @item.nil?
if not arg.nil?
@macro.merge!( arg )
end
else
if not @item[:macros].nil?
@macro.merge!( @item[:macros] )
end
end
end
def macro_value_for(macro_name)
if macro_name.nil? or macro_name=="" or @macro[macro_name.intern].nil?
return %{%#{macro_name}}
end
return @macro[macro_name.intern]
end
def run(content, params={})
content.gsub(/%(\w*)/) do |m|
if m != '%'
macro_value_for($1)
else
m
end
end
end
end
Macros could be very useful, read this article for example.
comments
Created: 10/26/2010
Modified: 10/26/2011