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(meg/match ~{:close-tag (drop (* "</" (cmt (* (backref :tag-name) (capture :w+)) "<function =>") ">")) :main (* :tagged -1) :open-tag (* (constant :tag) "<" (capture :w+ :tag-name) ">") :tagged (unref (replace (* :open-tag :value :close-tag) "<cfunction struct>")) :untagged (capture (some (if-not "<" 1))) :value (* (constant :value) (group (any (+ :tagged :untagged))))}
           "<p><em>Hello</em> <strong>world</strong>!</p>")

captures and tags

captures: @[:tag "p" :value :tag "em" :value @["Hello"] "em"]

tagged-captures:
  tags: @[nil :tag-name nil nil :tag-name nil nil nil :tag-name]
  values: @[:tag "p" :value :tag "em" :value "Hello" @["Hello"] "em"]

current frame

status: exiting frame 103 with value: 16

peg: (some :w)

text: <p><em>Hello</em> <strong>world</strong>!</p>

index: 14 advanced to: 16

matched: em

frames call stack

103 (some :w)
102 :w+
101 (capture :w+)
99 (* (backref :tag-name) (capture :w+))
98 (cmt (* (backref :tag-name) (capture :w+)) "<function =>")
96 (* "</" (cmt (* (backref :tag-name) (capture :w+)) "<function =>") ">")
95 (drop (* "</" (cmt (* (backref :tag-name) (capture :w+)) "<function =>") ">"))
94 :close-tag
26 (* :open-tag :value :close-tag)
25 (replace (* :open-tag :value :close-tag) "<cfunction struct>")
24 (unref (replace (* :open-tag :value :close-tag) "<cfunction struct>"))
23 :tagged
22 (+ :tagged :untagged)
21 (any (+ :tagged :untagged))
20 (group (any (+ :tagged :untagged)))
18 (* (constant :value) (group (any (+ :tagged :untagged))))
17 :value
4 (* :open-tag :value :close-tag)
3 (replace (* :open-tag :value :close-tag) "<cfunction struct>")
2 (unref (replace (* :open-tag :value :close-tag) "<cfunction struct>"))
1 :tagged
0 (* :tagged -1)