regexp  {Common\spoint:\s+(\S+)}  "Common point:  rt123_345_no/qwe_rty/sdf34x56/CFR" - g1
puts $g1
regexp  {Common\spoint:\s+(\S+)}  "Common point: NA" - g2
puts $g2
regexp  {Common\spoint:\s+(\S+)\y}  "Common point:  rt123_345_no/qwe_rty/sdf34x56/CFR" - g3
puts $g3
regexp {Common\spoint:\s+(\S+)\y}  "Common point: NA" - g4
puts $g4
regexp  {Common\spoint:\s+(\S+)(?:\s+|\Z)}  "Common point:  rt123_345_no/qwe_rty/sdf34x56/CFR" - g5
puts $g5
regexp {Common\spoint:\s+(\S+)(?:\s+|\Z)}  "Common point: NA" - g6
puts $g6
regexp  {Common\spoint:\s+(\S+)(?!\S)}  "Common point:  rt123_345_no/qwe_rty/sdf34x56/CFR" - g7
puts $g7
regexp {Common\spoint:\s+(\S+)(?!\S)}  "Common point: NA" - g8
puts $g8

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