Class: Mote

Inherits:
Object
  • Object
show all
Defined in:
lib/mote.rb

Overview

Copyright © 2011 Michel Martens

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Defined Under Namespace

Modules: Helpers

Constant Summary collapse

VERSION = 
"1.3.0"
PATTERN =

The regex has three alternative blocks that capture the embedded Ruby code. The rest is left as is.

/
  ^[^\S\n]*(%)[^\S\n]*(.*?)(?:\n|\Z) | # Ruby evaluated lines
  (<\?)\s+(.*?)\s+\?>                | # Multiline Ruby blocks
  (\{\{)(.*?)\}\}                      # Ruby evaluated to strings
/mx

Class Method Summary collapse

Class Method Details

.parse(template, context = self, vars = [], name = "template") ⇒ Object 



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# File 'lib/mote.rb', line 52

def self.parse(template, context = self, vars = [], name = "template")
  context.instance_eval(src(template, vars), name, -1)
end

.src(template, vars = []) ⇒ Object 



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# File 'lib/mote.rb', line 31

def self.src(template, vars = [])
  terms = template.split(PATTERN)

  code = "Proc.new do |params, __o| params ||= {}; __o ||= '';"

  vars.each do |var|
    code << "%s = params[%p];" % [var, var]
  end

  while (term = terms.shift)
    case term
    when "<?" then code << "#{terms.shift}\n"
    when "%"  then code << "#{terms.shift}\n"
    when "{{" then code << "__o << (#{terms.shift}).to_s\n"
    else           code << "__o << #{term.dump}\n"
    end
  end

  code << "__o; end"
end