ERB-like mruby gem
Ruby
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
mrblib
test
.gitignore
LICENSE
README.md
mrbgem.rake

README.md

mruby-merb

This is a mruby gem provinding an ERB-like mechanism for converting template files with embedded mruby code.

Installation

Simply add the following line to your build_config.rb file in mruby root:

conf.gem :github => "pbosetti/mruby-merb", :branch => "master"

and then recompile mruby with make clean; make.

Usage

Due to the fact that mruby lacks the Binding class, values must be passed from toplevel (or calling scope) to the code within the template by using global variables, as in the following example:

merb = MERB.new "The value of $x is: <%= $x -%>"
$x = 2.3
result = merb.run
puts result #=> The value of $x is: 2.3

Of course you can load the template string from an external file:

merb = Merb.new
result = merb.convert("test.erb")

Supported erb tags

  • <% ... %>: standard ruby code execution (no printout)
  • <%= ... %>: execute and insert the resulting value as a string; adds a newline
  • <%= ... -%>: execute and insert the resulting value as a string; no newline added (note the dash in the closing tag!)

An arbitrary pair of opening and closing tags can be specified instead of the <% and %> default:

merb.tags[:open] = '{-'
merb.tags[:close] = '-}'