dollar.rb in ruote-0.9.20

- old
+ new

@@ -1,43 +1,29 @@
-#
 #--
-# Copyright (c) 2006-2008, John Mettraux, OpenWFE.org
-# All rights reserved.
+# Copyright (c) 2006-2009, John Mettraux, jmettraux@gmail.com
 #
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are met:
+# 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:
 #
-# . Redistributions of source code must retain the above copyright notice, this
-#   list of conditions and the following disclaimer.
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
 #
-# . Redistributions in binary form must reproduce the above copyright notice,
-#   this list of conditions and the following disclaimer in the documentation
-#   and/or other materials provided with the distribution.
+# 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.
 #
-# . Neither the name of the "OpenWFE" nor the names of its contributors may be
-#   used to endorse or promote products derived from this software without
-#   specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
+# Made in Japan.
 #++
-#
 
-#
-# "made in Japan"
-#
-# John Mettraux at openwfe.org
-#
 
 require 'rufus/dollar' # gem 'rufus-dollar'
 
 require 'openwfe/utils'
 require 'openwfe/util/treechecker'
@@ -49,36 +35,36 @@
   # Performs 'dollar substitution' on a piece of text with as input
   # a flow expression and a workitem (fields and variables).
   #
   def OpenWFE.dosub (text, flow_expression, workitem)
 
-  #
-  # patch by Nick Petrella (2008/03/20)
-  #
+    #
+    # patch by Nick Petrella (2008/03/20)
+    #
 
-  if text.is_a?(String)
+    if text.is_a?(String)
 
-    Rufus::dsub(text, FlowDict.new(flow_expression, workitem))
+      Rufus::dsub(text, FlowDict.new(flow_expression, workitem))
 
-  elsif text.is_a?(Array)
+    elsif text.is_a?(Array)
 
-    text.collect { |e| dosub(e, flow_expression, workitem) }
+      text.collect { |e| dosub(e, flow_expression, workitem) }
 
-  elsif text.is_a?(Hash)
+    elsif text.is_a?(Hash)
 
-    text.inject({}) do |r, (k, v)|
+      text.inject({}) do |h, (k, v)|
 
-    r[dosub(k, flow_expression, workitem)] =
-      dosub(v, flow_expression, workitem)
-    r
-    end
+        h[dosub(k, flow_expression, workitem)] =
+          dosub(v, flow_expression, workitem)
+        h
+      end
 
-  else
+    else
 
-    text
+      text
+    end
   end
-  end
 
   #
   # Wrapping a process expression and the current workitem as a
   # Hash object ready for lookup at substitution time.
   #
@@ -96,10 +82,11 @@
     pr, k = extract_prefix key
 
     # stage 0
 
     v = lookup(pr[0, 1], k)
+
     return v if v != nil
 
     # stage 1
 
     return '' if pr.size < 2
@@ -112,15 +99,15 @@
     pr, k = extract_prefix key
     pr = pr[0, 1]
 
     if pr == 'f'
 
-    @workitem.set_attribute k, value
+      @workitem.set_attribute(k, value)
 
     elsif @flow_expression
 
-    @flow_expression.set_variable k, value
+      @flow_expression.set_variable(k, value)
     end
   end
 
   def has_key? (key)
 
@@ -133,29 +120,29 @@
 
   protected
 
     def lookup (pr, key)
 
-    case pr
-      when 'v' then @flow_expression.lookup_variable(key)
-      when 'f' then @workitem.lookup_attribute(key)
-      when 'r' then call_ruby(key)
-      else nil
+      case pr
+        when 'v' then @flow_expression.lookup_variable(key)
+        when 'f' then @workitem.lookup_attribute(key)
+        when 'r' then call_ruby(key)
+        else nil
+      end
     end
-    end
 
     def extract_prefix (key)
 
-    i = key.index(':')
+      i = key.index(':')
 
-    return [ @default_prefix, key ] if not i
+      return [ @default_prefix, key ] if not i
 
-    pr = key[0..i-1] # until ':'
-    pr = pr[0, 2] # the first two chars
+      pr = key[0..i-1] # until ':'
+      pr = pr[0, 2] # the first two chars
 
-    pr = pr[0, 1] unless (pr == 'vf') or (pr == 'fv')
+      pr = pr[0, 1] unless (pr == 'vf') or (pr == 'fv')
 
-    [ pr, key[i+1..-1] ]
+      [ pr, key[i+1..-1] ]
     end
 
     #--
     #def call_function (function_name)
     #  #"function '#{function_name}' is not implemented"