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-rw-r--r--lib/node.rb44
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/node.rb b/lib/node.rb
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+++ b/lib/node.rb
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+module VFSM
+ class Node
+ def initialize id, accepting = false
+ @id = id
+ @accepting = accepting
+ @edges = []
+ end
+
+ def id
+ return @id
+ end
+
+ def accepting! accepting=true
+ @accepting = accepting
+ end
+
+ def accepting?
+ return @accepting
+ end
+
+ def pushedge on, to
+ tempto = @edges.select do |edge|
+ edge[0] == on
+ end
+ @edges.push [on, to]
+ end
+
+ def goto on
+ to = @edges.select do |edge|
+ edge[0] == on
+ end
+
+ if to.length == 0 then
+ return :reject
+ else
+ ret = []
+ to.each do |x|
+ ret.push x[1]
+ end
+ return ret
+ end
+ end
+ end
+end