From 1f778c16527f08e0924dc6d7cf67e4660d58d4d2 Mon Sep 17 00:00:00 2001 From: mike dupont Date: Mon, 13 Nov 2023 15:47:42 -0500 Subject: [PATCH] segfault --- grammars/ebnf.ebnf | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 grammars/ebnf.ebnf diff --git a/grammars/ebnf.ebnf b/grammars/ebnf.ebnf new file mode 100644 index 000000000..8d737d9ea --- /dev/null +++ b/grammars/ebnf.ebnf @@ -0,0 +1,30 @@ +letter ::= "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" | "J" | "K" | "L" | "M" | "N" | "O" | "P" | "Q" | "R" | "S" | "T" | "U" | "V" | "W" | "X" | "Y" | "Z" | "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z" + +digit ::= "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" +# removed " | "\f" | "\b" +symbol ::= "[" | "]" | "{" | "}" | "(" | ")" | "<" | ">" | "'" | "=" | "|" | "." | "," | ";" | "-" | "+" | "*" | "?" | "\n" | "\t" | "\r" + +character ::= letter | digit | symbol | "_" | " " +identifier ::= letter ( letter | digit | "_" ) + +#| "\f" | "\b" +S ::= ( " " | "\n" | "\t" | "\r" ) + +terminal ::= "'" character - "'" ( character - "'" ) "'" + #| '"' character - '"' ( character - '"' ) '"' + +terminator ::= (";" | ".") + +term ::= "(" S rhs S ")" | "[" S rhs S "]" | "{" S rhs S "}" | terminal | identifier + +factor ::= term S "?" | term S "*" | term S "+" | term S "-" S term | term S + +concatenation ::= ( S factor S "," ? ) + +alternation ::= ( S concatenation S "|" ? ) + + +rhs ::= alternation +lhs ::= identifier + +rule ::= lhs S "=" S rhs S terminator + +root ::= ( S rule S ) *