Rules changed
This commit is contained in:
Valk Richard Li
GitHub
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8abc674887
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5b01409079
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@ -1,127 +1,76 @@
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/*
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<>术语符号
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[]最多出现一次
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{}可以出现任意次，包括0次
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()分组
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|并列选项，只能选一个
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*/
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<long long int> ::= <long long int>
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<double> ::= <double>
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<char> ::= <char>
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<string> ::= <string>
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<array> ::= <array>
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<hash> ::= <hash>
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<key> ::= <identifier>
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<number> ::= <long long int>|<double>
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<class_function> ::= <identifier> [<(> { <,> <identifier> } <)>] <{> { <statement> <;> } <}>
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<initial_value> ::= <number>|<char>|<string>
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<array_initial_value> ::= <[> { <,> <number>|<char>|<string>|<array>|<hash> } <]>
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<hash_initial_value> ::= <{> { <string_as_name> <:> <number>|<char>|<string>|<array>|<hash> } <}>
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<class_initial_value> ::= <{> { <string_as_name> <:> <number>|<char>|<string>|<array>|<hash>|<class_function> } <}>
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<definition_var> ::= <var> <identifier> <=> <initial_value>|<array_initial_value>|<hash_initial_value> <;>
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<definition_class> ::= <var> <identifier> <=> <class_initial_value> <;>
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<change_var> ::= <identifier> <=> <initial_value>|<array_initial_value>|<hash_initial_value> <;>
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<not_global_var> ::= <identifier> <=> <initial_value>|<array_initial_value>|<hash_initial_value> <;>
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<change_array> ::= <array> <[> <long long int> <]> <=> <initial_value>|<array_initial_value>|<hash_initial_value> <;>
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<change_hash> ::= <hash> <[> <key> <]> <=> <initial_value>|<array_initial_value>|<hash_initial_value> <;>
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<append> ::= <(><array> { <,> <number>|<char>|<string>|<array>|<hash> } <)> <;>
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<setsize> ::= <(> <array> <,> <long long int> <)> <;>
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<subvec> ::= <(> <array> <,> <long long int> <,> <long long int> <)> <;>
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<pop> ::= <(> <array> <)> <;>
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<sort> ::= <(> <array> <,> <func> <(> <identifier> <,> <identifier> <)> (<identifier> <-> <identifier>)|(<cmp> <(> <identifier> <,> <identifier> <)>) <)> <;>
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<contains> ::= <(> <hash> <,> <key> <)> <;>
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<delete> ::= <(> <hash> <,> <key> <)> <;>
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<keys> ::= <(> <hash> <)> <;>
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<choose> ::= [ <if> ] <(> <condition> <)> (<statement> <;>)|(<{> { <statement> <;> } <}>)
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{ (<else> <if>)|<elsif> }|[ <else> ] <(> <condition> <)> (<statement> <;>)|(<{> { <statement> <;> } <}>)
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<loop> ::= <for> <(> <var> <identifier> <=> <number> <;> <condition> <;> <identifier> <=> <identifier> <+> <number> <)>
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<{>
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{ <statement> <;> }
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<}>
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<loop> ::= <while> <(> <condition> <)>
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<{>
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{ <statement> <;> }
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<}>
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<loop> ::= <foreach>|<forindex> <(> <identifier> <,> <array> <)>
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<{>
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{ <statement> <;> }
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<}>
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<function_definition> ::= <var> <identifier> <func> [<(> { <identifier> } <)>]
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<{>
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{ <statement> <;> }
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<}>
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<function_use> ::= <identifier> <(> { ({<,> <number>|<char>|<string>|<array>|<hash>})|({<,> <identifier> <:> <number>|<char>|<string>|<array>|<hash>}) } <)>
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<function_reload> ::= <var> <identifier> <func> [<(> { <identifier> } <)>]
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<{>
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{ <if> <(> <typeof> <(> <identifier> <)> <==> <typename_string> <)> ([<{> {<statement> <;>} <}>])|(<statement> <;>) }
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<die> <(> <string> <)> <;>
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<}>
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<function_dynamic_spawn> ::= <var> <identifier> <func> [<(> { <identifier> } <)>]
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<{>
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{ <statement> <;> }
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<return> <func> [<(> {<,> <identifier>} <)>]
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<{>
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{ <statement> <;> }
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<}>
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<}>
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<array_print> ::= <array> <[> <number> <]>|[ <.> <key>|<array_print> ]
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<hash_print> ::= <hash> <.> <key>|<array_print>
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<print> ::= <(> { <,> <identifier>|<string>|<array_print>|<hash_print> } <)> <;>
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<error_occur> ::= <die> <(> <string> <)> <;>
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<multiple_declare> ::= <(> <var> { <,> <identifier> [<[> <number>|<string> <]>] } <)> <=> <(> { <number>|<char>|<string>|<array>|<hash> } <)> <;>
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<multiple_declare> ::= <var> <(> { <,> <identifier> [<[> <number>|<string> <]>] } <)> <=> <(> { <number>|<char>|<string>|<array>|<hash> } <)> <;>
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<swap_multiple_var> ::= <(> { <,> <identifier> [<[> <number>|<string> <]>] } <)> <=> <(> { <,> <identifier> [<[> <number>|<string> <]>] } <)> <;>
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<var_from_array> ::= <var> <(> { <,> <identifier> [<[> <number>|<string> <]>] } <)> <=> <array> <;>
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<sub_array> ::= <var> <identifier> <=> <identifier> <[> { <,> <number> }|(<number> <:> [ <number> ])|<number> <]> <;>
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<language type> nasal--
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<long long int> ::= <long long int>
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<double> ::= <double>
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<string> ::= <string>
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<array> ::= <array>
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<hash> ::= <hash>
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<number> ::= <long long int>|<double>
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<use_void_function> ::= <identifier> <(> {<identifier>} <)> <;>
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<use_return_function> ::= <identifier> <(> {<identifier>} <)>
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<definition> ::= <var> <identifier> <=> <number>|<string>|<array>|<hash>|<identifier>|<use_return_function> <;>
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<assignment> ::= <identifier> <=> <number>|<string>|<array>|<hash>|<identifier>|<use_function> <;>
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<function> ::= <var> <identifier> <=> <func> <(> {<identifier>} <)> <{> {<statement> <;>} <}>
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<loop> ::= <for> <(> <var> <identifier> <=> <number> <;> <condition> <;> <identifier> <=> <identifier> <+> <number> <)>
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<{>
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{ <statement> <;> }
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<}>
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<loop> ::= <while> <(> <condition> <)>
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<{>
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{ <statement> <;> }
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<}>
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<choose> ::= [ <if> ] <(> <condition> <)> (<statement> <;>)|(<{> { <statement> <;> } <}>)
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{ (<else> <if>)|<elsif> }|[ <else> ] <(> <condition> <)> (<statement> <;>)|(<{> { <statement> <;> } <}>)
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//basic elements
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<identifier> ::= IDENTIFIER
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<number> ::= NUMBER
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<string> ::= STRING
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<array_search> ::= <identifier> <[> <number> <]>
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<array_member> ::= (<number>|<string>|<array>|<hash>|<identifier>|<use_function>|<array_search>|<hash_search> <,>)|(<number>|<string>|<array>|<hash>|<identifier>|<use_function>|<array_search>|<hash_search>)
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<array> ::= <[> <array_member> <]>
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<hash_search> ::= <identifier> <[> <string> <]>
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<hash_member> ::= (<identifier> <:> <number>|<string>|<array>|<hash>|<function>|<use_function>|<array_search>|<hash_search> <,>)|(<identifier> <:> <number>|<string>|<array>|<hash>|<function>|<use_function>|<array_search>|<hash_search>)
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<hash> ::= <{> <hash_member> <}>
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<parameter> ::= (<identifier> <,>)|<identifier>
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<function> ::= <func> <(> <parameter> <)> <{> <statement> <}>
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<use_function> ::= <identifier> <(> <parameter> <)>
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<statement> ::= <definition>|<assignment>|<loop>|<ifelse>|<use_function>|<return> <;>
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//scalar
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<use_identifier> ::= <identifier>|<array_search>|<hash_search>
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<scalar> ::= <number>|<string>|<array>|<hash>|<use_identifier>|<use_function>
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<scalars> ::= <scalar> <,> <scalar>
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<scalars> ::= <scalars> <,> <scalar>
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<definition> ::= <var> <identifier> <=> <number>|<string>|<array>|<hash>|<identifier>|<function>|<use_function>|<array_search>|<hash_search> <;>
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<assignment> ::= <identifier> <=> <number>|<string>|<array>|<hash>|<identifier>|<function>|<use_function>|<array_search>|<hash_search> <;>
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//array
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<array_search> ::= <use_identifier> <[> <number> <]>
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<array> ::= <[> <scalar>|<scalars> <]>
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//hash
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<hash_search> ::= <use_identifier> <[> <string> <]>
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<hash_member> ::= <identifier> <:> <scalar>
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<hash_members> ::= <hash_member> <,> <hash_member>
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<hash_members> ::= <hash_members> <,> <hash_member>
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<hash> ::= <{> <hash_member>|<hash_members> <}>
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//function
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<parameter> ::= <scalar>
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<parameters> ::= <scalars>
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<function> ::= <func> <(> <parameter>|<parameters> <)> <{> <statement>|<statements> <}>
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<use_function> ::= <use_identifier> <(> <parameter>|<parameters> <)>
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//definition & assignment
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<definition> ::= <var> <identifier> <=> <scalar>|<function> <;>
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<assignment> ::= <identifier> <=> <scalar> <;>
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//loop
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<loop_condition> ::= <statement>|<statements> <;> <condition>|<conditions> <;> <statement>|<statements>
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<loop> ::= <for> <(> <loop_condition> <)> <statement>|<{> <statement>|<statements> <}>
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<loop> ::= <while> <(> <condition>|<conditions> <)> <statement>|<{> <statement>|<statements> <}>
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//if else
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<condition_link_operator> ::= <and>|<or>|<!>
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<cmp_operator> ::= <==>|<>>|<<>|<<=>|<>=>|<!=>|<condition_link_operator>
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<condition> ::= <scalar>
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<condition> ::= <scalar> <cmp_operator> <scalar>
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<conditions> ::= <(> <condition> <)> <condition_link_operator> <(> <condition> <)>
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<conditions> ::= <(> <conditions> <)> <condition_link_operator> <(> <condition> <)>
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<conditions> ::= <(> <condition> <)> <condition_link_operator> <(> <conditions> <)>
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<conditions> ::= <conditions> <condition_link_operator> <(> <condition> <)>
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<conditions> ::= <conditions> <condition_link_operator> <(> <conditions> <)>
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//(e==1) && (e==2)
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//((e==1) && (e==2)) && (e==3)
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//(e==1) && ((e==2) && (e==3))
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//(e==1) && (e==2) && (e==3) && ((e==4) && (e==5))
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<_if> ::= <if> <(> <condition>|<conditions> <)> <statement>
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<_if> ::= <if> <(> <condition>|<conditions> <)> <{> <statement>|<statements> <}>
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<_else> ::= <else> <statement>
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<_else> ::= <else> <{> <statement>|<statements> <}>
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<else_if> ::= <else> <if> <(> <condition>|<conditions> <)> <statement>
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<else_if> ::= <else> <if> <(> <condition>|<conditions> <)> <{> <statement>|<statements> <}>
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<else_ifs> ::= <else_if> <else_if>
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<else_ifs> ::= <else_ifs> <else_if>
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<choose> ::= <_if>
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<choose> ::= <_if> <_else>
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<choose> ::= <_if> <else_if>
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<choose> ::= <_if> <else_ifs>
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<choose> ::= <_if> <else_if> <_else>
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<choose> ::= <_if> <else_ifs> <_else>
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//statement
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<func_return> ::= <return> <scalar>
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<statement> ::= <definition>|<assignment>|<loop>|<choose>|<use_function>|<func_return> <;>
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<statements> ::= <statement> <statement>
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<statements> ::= <statements> <statement>
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