有谁知道如何处理以下情况?
if-section:
if-group [ elif-groups ] [ else-group ] endif-line
if-group:
....
elif-groups:
elif-group
elif-groups elif-group
elif-group:
"#" "elif" constant-expression new-line [ group ]
else-group:
"#" "else" new-line [ group ]
endif-line:
"#" "endif" new-line
if-group 之后的 if-section 中的所有非终结符都以“#”开头。我认为在这种情况下,左分解是不可能的。是否有任何“默认解决方案”来确定我是否必须调用两个(或两个)可选非终端之一?
谢谢。