我正在编写PowerShell语言的解析器，使用此处描述的语法：http://www.microsoft.com/en-us/download/details.aspx?id=9706。
我使用了Irony，而Irony Grammar Explorer报告了一些转移/减少和减少/减少错误。这个让我很难过，因为我不确定它告诉我的是什么。
State S79 (Inadequate)
Shift-reduce conflicts on inputs: [ , + dash ++ dashdash
Shift items:
cast_expression -> type_literal ·unary_expression
unary_expression -> ·primary_expression
primary_expression -> ·value
value -> ·parenthesized_expression
parenthesized_expression -> ·( pipeline )
value -> ·sub_expression
sub_expression -> ·$( statement_list_opt )
value -> ·array_expression
array_expression -> ·@( statement_list_opt )
value -> ·script_block_expression
script_block_expression -> ·{ script_block }
value -> ·hash_literal_expression
hash_literal_expression -> ·@{ hash_literal_body_opt }
value -> ·literal
literal -> ·integer_literal
integer_literal -> ·decimal_integer_literal
integer_literal -> ·hexadecimal_integer_literal
literal -> ·real_literal
literal -> ·string_literal
string_literal -> ·expandable_string_literal
string_literal -> ·verbatim_string_literal
value -> ·type_literal
type_literal -> ·[ type_spec ]
value -> ·variable
primary_expression -> ·member_access
member_access -> ·primary_expression Unnamed6 member_name
primary_expression -> ·element_access
element_access -> ·primary_expression [ expression ]
primary_expression -> ·post_increment_expression
post_increment_expression -> ·primary_expression ++
primary_expression -> ·post_decrement_expression
post_decrement_expression -> ·primary_expression dashdash
unary_expression -> ·expression_with_unary_operator
expression_with_unary_operator -> ·, unary_expression
expression_with_unary_operator -> ·-not unary_expression
expression_with_unary_operator -> ·! unary_expression
expression_with_unary_operator -> ·-bnot unary_expression
expression_with_unary_operator -> ·+ unary_expression
expression_with_unary_operator -> ·dash unary_expression
expression_with_unary_operator -> ·pre_increment_expression
pre_increment_expression -> ·++ unary_expression
expression_with_unary_operator -> ·pre_decrement_expression
pre_decrement_expression -> ·dashdash unary_expression
expression_with_unary_operator -> ·cast_expression
cast_expression -> ·type_literal unary_expression
expression_with_unary_operator -> ·-split unary_expression
expression_with_unary_operator -> ·-join unary_expression
Reduce items:
value -> type_literal · [assignment_operator . :: [ ++ dashdash , .. format_operator * / % + dash as ccontains ceq cge cgt cle clike clt cmatch cne cnotcontains cnotlike cnotmatch contains creplace csplit eq ge gt icontains ieq ige igt ile ilike ilt imatch ine inotcontains inotlike inotmatch ireplace is isnot isplit join le like lt match ne notcontains notlike notmatch replace split -band -bor -bxor -and -or -xor 2>&1 1>&2 file_redirection_operator | ; new_line_character EOF } ) = ]]
Transitions: unary_expression->S187, primary_expression->S158, value->S60, parenthesized_expression->S61, (->S62, sub_expression->S63, $(->S64, array_expression->S65, @(->S66, script_block_expression->S67, {->S68, hash_literal_expression->S69, @{->S70, literal->S71, integer_literal->S72, decimal_integer_literal->S73, hexadecimal_integer_literal->S74, real_literal->S75, string_literal->S76, expandable_string_literal->S77, verbatim_string_literal->S78, type_literal->S79, [->S80, variable->S81, member_access->S82, element_access->S83, post_increment_expression->S84, post_decrement_expression->S85, expression_with_unary_operator->S97, ,->S98, -not->S99, !->S100, -bnot->S101, +->S102, dash->S103, pre_increment_expression->S104, ++->S105, pre_decrement_expression->S106, dashdash->S107, cast_expression->S108, -split->S109, -join->S110
如果你想看看自己，代码在这里：https://github.com/Pash-Project/Pash/tree/method-invocation/Source/Pash.System.Management
编辑：我认为混淆的输入是：
[int] +7
这是加法还是演员？