Mote is shared with the world.

Author: soveran

.gitignore

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+/pkg

LICENSE

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+Copyright (c) 2010 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.

README.markdown

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+Mote
+====
+
+Minimum Operational Template.
+
+Description
+-----------
+
+Mote is the little brother of ERB. It only provides a subset of ERB's
+features, but praises itself of being simple--both internally and externally--
+and super fast. It was born out of experimentations while discussing
+[NOLATE](https://github.com/antirez/nolate), another small library with the
+same goals and more features.
+
+Usage
+-----
+
+Usage is very similar to that of ERB:
+
+    template = Mote.parse("This is a template")
+    template.call #=> "This is a template"
+
+Silly example, you may say, and I would agree. What follows is a short list of
+the different use cases you may face:
+
+## Assignment
+
+    example = Mote.parse("<%= \"***\" %>")
+    assert_equal "***", example.call
+
+## Comment
+
+    example = Mote.parse("*<%# \"*\" %>*")
+    assert_equal "**", example.call
+
+## Control flow
+
+    example = Mote.parse("<% if false %>*<% else %>***<% end %>")
+    assert_equal "***", example.call
+
+## Block evaluation
+
+    example = Mote.parse("<% 3.times { %>*<% } %>")
+    assert_equal "***", example.call
+
+## Parameters
+
+    example = Mote.parse("<% params[:n].times { %>*<% } %>")
+    assert_equal "***", example[n: 3]
+    assert_equal "****", example[n: 4]
+
+Two things are worth noting in the last example: the first is that as the
+returned value is a `Proc`, you can call it with square brackets and anything
+you put inside becomes a parameter. Second, that within the template you have
+access to those parameters through the `params` hash, instead of the usual
+approach of converting each key to a local variable.
+
+# Helpers
+
+There are a couple helpers available in the `Mote::Helpers` module, and you are
+free to include it in your code. To do it, just type:
+
+    include Mote::Helpers
+
+Here are the available helpers:
+
+## `mote`
+
+The `mote` helper receives a template string and returns the rendered version
+of it:
+
+    assert_equal "1 2 3", mote("1 <%= 2 %> 3")
+
+It works with parameters too:
+
+    assert_equal "1 2 3", mote("1 <%= params[:n] %> 3", :n => 2)
+
+## `mote_file`
+
+The `mote_file` helper receives a file name without the `.erb` extension and
+returns the rendered version of its content. The compiled template is cached
+for subsequent calls.
+
+    assert_equal "***\n", mote_file("test/basic", :n => 3)
+
+Installation
+------------
+
+    $ gem install mote
+
+License
+-------
+
+Copyright (c) 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.

Rakefile

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+task :test do
+  require "cutest"
+  Cutest.run(Dir["test/*.rb"])
+end
+
+task :default => :test

lib/mote.rb

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+# Copyright (c) 2010 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.
+class Mote
+  VERSION = "0.0.1"
+
+  def self.parse(template, context = self)
+    terms = template.split(/(<%[=#]?)\s*(.*?)\s*%>/)
+
+    parts = "Proc.new do |params, __o|\n params ||= {}; __o ||= ''\n"
+
+    while term = terms.shift
+      case term
+      when "<%#" then terms.shift # skip
+      when "<%"  then parts << "#{terms.shift}\n"
+      when "<%=" then parts << "__o << (#{terms.shift}).to_s\n"
+      else            parts << "__o << #{term.inspect}\n"
+      end
+    end
+
+    parts << "__o; end"
+
+    context.instance_eval(parts)
+  end
+
+  module Helpers
+    def mote(template, params = {})
+      Mote.parse(template).call(params)
+    end
+
+    def mote_file(file_name, params = {})
+      @_mote ||= {}
+      @_mote[file_name] ||= Mote.parse(File.read("#{file_name}.erb"))
+      @_mote[file_name][params]
+    end
+  end
+end

mote.gemspec.erb

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+<% require "./lib/mote" -%>
+Gem::Specification.new do |s|
+  s.name              = "mote"
+  s.version           = "<%= Mote::VERSION %>"
+  s.summary           = "Minimum Operational Template."
+  s.description       = "Mote is the little brother of ERB. It only provides a subset of ERB's features, but praises itself of being simple--both internally and externally--and super fast."
+  s.authors           = ["Michel Martens"]
+  s.email             = ["[email protected]"]
+  s.homepage          = "https://github.com/soveran/mote"
+  s.files = <%= Dir[
+    "LICENSE",
+    "README.markdown",
+    "Rakefile",
+    "lib/**/*.rb",
+    "*.gemspec",
+    "test/**/*.rb"
+  ].inspect %>
+  s.add_development_dependency "cutest", "~> 0.1"
+end

test/basic.erb

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+<% 3.times do %>*<% end %>

test/mote_test.rb

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+require File.expand_path("../lib/mote", File.dirname(__FILE__))
+
+scope do
+  test "assignment" do
+    example = Mote.parse("<%= \"***\" %>")
+    assert_equal "***", example.call
+  end
+
+  test "comment" do
+    example = Mote.parse("*<%# \"*\" %>*")
+    assert_equal "**", example.call
+  end
+
+  test "control flow" do
+    example = Mote.parse("<% if false %>*<% else %>***<% end %>")
+    assert_equal "***", example.call
+  end
+
+  test "block evaluation" do
+    example = Mote.parse("<% 3.times { %>*<% } %>")
+    assert_equal "***", example.call
+  end
+
+  test "parameters" do
+    example = Mote.parse("<% params[:n].times { %>*<% } %>")
+    assert_equal "***", example[:n => 3]
+    assert_equal "****", example[:n => 4]
+  end
+end
+
+include Mote::Helpers
+
+scope do
+  test do
+    assert_equal "1 2 3", mote("1 <%= 2 %> 3")
+  end
+
+  test do
+    assert_equal "1 2 3", mote("1 <%= params[:n] %> 3", :n => 2)
+  end
+
+  test do
+    assert_equal "***\n", mote_file("test/basic", :n => 3)
+  end
+end