Thierry FOURNIER 0b2fe4a5cd MINOR: pattern: add support for compiling patterns for lookups
With this patch, patterns can be compiled for two modes :
  - match
  - lookup

The match mode is used for example in ACLs or maps. The lookup mode
is used to lookup a key for pattern maintenance. For example, looking
up a network is different from looking up one address belonging to
this network.

A special case is made for regex. In lookup mode they return the input
regex string and do not compile the regex.
2013-12-12 15:44:02 +01:00
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