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(meg/match ~(split :s+ (capture (to -1)))
           "a b  c")

captures and tags
captures: @["a"]

current frame
status: entered frame 30
peg: -1
text: a b
index: 3

frames call stack
30 -1
28 (to -1)
27 (capture (to -1))
0 (split :s+ (capture (to -1)))