Grep role for Sequences.

GrepRole.io

Regex

GrepRole := Object clone do(
    grep := method(x, 
        self split("\n") select(
            matchesOfRegex(x) map(k, k) size > 0
        ) map(k, k) 
    )
)

Sequence appendProto(GrepRole)

GrepRole_usage.io

// Usage:

GrepRole

Socket slotSummary asString grep("connect" asRegex caseless) foreach(println)

// Nb. grep uses matchesOfRegex which will accept plain strings too.

/* Output:

Io> Socket slotSummary asString grep("connect" asRegex caseless) foreach(println)
  asyncConnect     = Socket_asyncConnect()
  connect          = method(...)
  connectTimeout   = 60
  serverWaitForConnection = method(...)
  setConnectTimeout = method(...)
  syncConnect      = method(...)
==>   syncConnect      = method(...)
Io> 

*/