同步 b7516

2026-01-23 11:34:20 +08:00
parent d3752412b3
commit b1cf23ae3e
2015 changed files with 935048 additions and 1 deletions
--- a/grammars/arithmetic.gbnf
+++ b/grammars/arithmetic.gbnf
@@ -0,0 +1,6 @@
+root  ::= (expr "=" ws term "\n")+
+expr  ::= term ([-+*/] term)*
+term  ::= ident | num | "(" ws expr ")" ws
+ident ::= [a-z] [a-z0-9_]* ws
+num   ::= [0-9]+ ws
+ws    ::= [ \t\n]*