A linear node includes a begin option-node that has a direct link to an end option
node. The begin option node has a single entry, and also includes a list of links
with each entry in the list being a link to one of a plurality of parallel branches.
Each of the plurality of branches represents one possible value of a command element
of the configuration command. Each branch is connected back to the begin option
node through a next option node. During parsing of a command, each command element
is represented by a different linear node. Also, during parsing of the command,
a linear command regeneration template is generated that includes a begin option
node template, a next option node template, and an end option node template. The
linear command regeneration template is used to recreate the original command using
data in a system configuration database.