awidegreen · December 16, 2015 09:58 · Apr 18, 2013 · Apr 18, 2013
diff --git a/csh_complete_wrapper.rb b/csh_complete_wrapper.rb
@@ -7,7 +7,7 @@
 #
 # A call returns a space-seperated string 
 # of the possible completions, e.g.:
-#  ParameterCompletion.getCompletionList("cmd1 diff")
+#  ParameterCompletion.getCompletionString("cmd1 diff")
 #  returns: "-1 -2 -s -r"
 #
 # The definition of possible completions is done in a hash, see below. 
@@ -58,11 +58,11 @@ def self.getCompletion(comp_hash, tokens, position)
     end
   end
 
-  def self.getCompletionList(command)
+  def self.getCompletionString(command)
     tokens = command.split(" ")
     getCompletion(@@complete_hash, tokens, 0)
   end
 end
 
 ### example call
-puts ParameterCompletion.getCompletionList(ARGV.join(" "))
+puts ParameterCompletion.getCompletionString(ARGV.join(" "))
diff --git a/csh_complete_wrapper.rb b/csh_complete_wrapper.rb
@@ -0,0 +1,68 @@
+#!/usr/bin/env ruby
+#
+# This is a wrapper to query the appropiate command/parameter 
+# completions for (t)csh.
+#
+# Armin Widegreen (c) 2013
+#
+# A call returns a space-seperated string 
+# of the possible completions, e.g.:
+#  ParameterCompletion.getCompletionList("cmd1 diff")
+#  returns: "-1 -2 -s -r"
+#
+# The definition of possible completions is done in a hash, see below. 
+# The implementation relies on the termination of the last hash-element entry
+# with nil.
+#
+# More examples: 
+#  in: cm > "cmd1 cmd2"
+#  in: cmd1 di > "diff history"
+#  in: cmd2 d  > "" ; no return needed
+
+class ParameterCompletion
+  @@complete_hash = {
+    "cmd1" => 
+    {
+      "diff"    => 
+      { 
+        "-1" => nil,
+        "-2" => nil, 
+        "-s" => nil,
+        "-r" => nil
+      }, 
+      "history" => 
+      {
+        "-l" => nil,
+        "-a" => nil
+      }
+    },
+    "cmd2" => 
+    {
+      "s" => nil,
+      "d" => nil
+    }
+  }
+
+  def self.getCompletion(comp_hash, tokens, position)
+    token = tokens[position]
+    if comp_hash[token].is_a?(Hash) 
+      # has sub-hash with sub-param
+      return getCompletion(comp_hash[token], tokens, position+1)
+    elsif position == tokens.length - 1 &&  
+          comp_hash.has_key?(token)
+      # last element and has key, no completion!
+      return ""
+    else 
+      # last element (no hash), but no match 
+      return comp_hash.keys.join(" ")
+    end
+  end
+
+  def self.getCompletionList(command)
+    tokens = command.split(" ")
+    getCompletion(@@complete_hash, tokens, 0)
+  end
+end
+
+### example call
+puts ParameterCompletion.getCompletionList(ARGV.join(" "))