Extend the pmParseMetricSpec interface to allow local context to
be specified, in addition to the host & archive contexts already
supported. Local context is specified through the value 2 in the
"isarch" parameter, and the "@:" symbol in a metric spec string.
Extend the pmParseMetricSpec interface to allow local context to
be specified, in addition to the host & archive contexts already
supported. Local context is specified through the value 2 in the
"isarch" parameter, and the "@:" symbol in a metric spec string.