[REBOL] Parsing question
From: gilette:echo at: 14-Apr-2003 12:15
Hello,
I have a parsing question. I am trying to parse a string of PGN format.
it is the formalize way to notee a chess game, for those who don't know.
I want to explicitly say that the space or the newline can end some
sub-pattern. But i have an error message if i use the commented line
below...
Any idea ? Is there a smarter way of doing this ?
digit: charset [#"0" - #"9"]
spacer: #" "
;--- spacer: [#" " | #"^/"] <-- does not work
round_number: [copy x some digit #"." (print join "tour=" x)]
round_played: [copy y to spacer (print join "played=" y)]
round_comment: [#"{" copy comm to #"}" (print comm) to spacer]
round: [round_number round_played round_played opt round_comment]
game: [some round]
rules: [game to end]
parse "1.d3 d5 2.Nf3 Nf6 3.Bd2 c5 4.g3 Nc6 {a comment} 5.Na3 e6 6.b3
Be7" rules
Thank you !
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