gecko-dev/js2/semantics/JS20/Parser.lisp

645 строки
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Common Lisp

;;; The contents of this file are subject to the Netscape Public License
;;; Version 1.0 (the "NPL"); you may not use this file except in
;;; compliance with the NPL. You may obtain a copy of the NPL at
;;; http://www.mozilla.org/NPL/
;;;
;;; Software distributed under the NPL is distributed on an "AS IS" basis,
;;; WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
;;; for the specific language governing rights and limitations under the
;;; NPL.
;;;
;;; The Initial Developer of this code under the NPL is Netscape
;;; Communications Corporation. Portions created by Netscape are
;;; Copyright (C) 1999 Netscape Communications Corporation. All Rights
;;; Reserved.
;;;
;;; Sample JavaScript 2.0 grammar
;;;
;;; Waldemar Horwat (waldemar@netscape.com)
;;;
(declaim (optimize (debug 3)))
(progn
(defparameter *jw*
(generate-world
"J"
'((grammar code-grammar :lalr-1 :program)
(%section "Expressions")
(grammar-argument :beta allow-in no-in)
(%subsection "Identifiers")
(production :identifier ($identifier) identifier-identifier)
;(production :identifier (const) identifier-const)
(production :identifier (version) identifier-version)
(production :identifier (override) identifier-override)
;(production :identifier (field) identifier-field)
(production :identifier (method) identifier-method)
(production :identifier (getter) identifier-getter)
(production :identifier (setter) identifier-setter)
(production :identifier (traditional) identifier-traditional)
(production :identifier (constructor) identifier-constructor)
(production :qualified-identifier (:identifier) qualified-identifier-identifier)
(production :qualified-identifier (:qualified-identifier \:\: :identifier) qualified-identifier-multi-level)
(production :qualified-identifier (:parenthesized-expression \:\: :identifier) qualified-identifier-parenthesized-expression)
(%subsection "Primary Expressions")
(production :primary-expression (null) primary-expression-null)
(production :primary-expression (true) primary-expression-true)
(production :primary-expression (false) primary-expression-false)
(production :primary-expression ($number) primary-expression-number)
(production :primary-expression ($string) primary-expression-string)
(production :primary-expression (this) primary-expression-this)
(production :primary-expression (super) primary-expression-super)
(production :primary-expression (:qualified-identifier) primary-expression-qualified-identifier)
(production :primary-expression ($regular-expression) primary-expression-regular-expression)
(production :primary-expression (:parenthesized-expression) primary-expression-parenthesized-expression)
(production :primary-expression (:array-literal) primary-expression-array-literal)
(production :primary-expression (:object-literal) primary-expression-object-literal)
(production :primary-expression (:function-expression) primary-expression-function-expression)
(production :parenthesized-expression (\( (:expression allow-in) \)) parenthesized-expression-expression)
(%subsection "Function Expressions")
(production :function-expression (:anonymous-function) function-expression-anonymous-function)
(production :function-expression (:named-function) function-expression-named-function)
(%subsection "Object Literals")
(production :object-literal (\{ \}) object-literal-empty)
(production :object-literal (\{ :field-list \}) object-literal-list)
(production :field-list (:literal-field) field-list-one)
(production :field-list (:field-list \, :literal-field) field-list-more)
(production :literal-field (:qualified-identifier \: (:assignment-expression allow-in)) literal-field-assignment-expression)
(%subsection "Array Literals")
(production :array-literal ([ ]) array-literal-empty)
(production :array-literal ([ :element-list ]) array-literal-list)
(production :element-list (:literal-element) element-list-one)
(production :element-list (:element-list \, :literal-element) element-list-more)
(production :literal-element ((:assignment-expression allow-in)) literal-element-assignment-expression)
(%subsection "Postfix Unary Operators")
(production :postfix-expression (:full-postfix-expression) postfix-expression-full-postfix-expression)
(production :postfix-expression (:short-new-expression) postfix-expression-short-new-expression)
(production :full-postfix-expression (:primary-expression) full-postfix-expression-primary-expression)
(production :full-postfix-expression (:full-new-expression) full-postfix-expression-full-new-expression)
(production :full-postfix-expression (:full-postfix-expression :member-operator) full-postfix-expression-member-operator)
(production :full-postfix-expression (:full-postfix-expression :arguments) full-postfix-expression-call)
(production :full-postfix-expression (:postfix-expression ++) full-postfix-expression-increment)
(production :full-postfix-expression (:postfix-expression --) full-postfix-expression-decrement)
(production :full-new-expression (new :full-new-subexpression :arguments) full-new-expression-new)
(production :short-new-expression (new :short-new-subexpression) short-new-expression-new)
(production :full-new-subexpression (:primary-expression) full-new-subexpression-primary-expression)
(production :full-new-subexpression (:full-new-subexpression :member-operator) full-new-subexpression-member-operator)
(production :full-new-subexpression (:full-new-expression) full-new-subexpression-full-new-expression)
(production :short-new-subexpression (:full-new-subexpression) short-new-subexpression-new-full)
(production :short-new-subexpression (:short-new-expression) short-new-subexpression-new-short)
(production :member-operator ([ :argument-list ]) member-operator-array)
(production :member-operator (\. :qualified-identifier) member-operator-property)
(production :member-operator (\. :parenthesized-expression) member-operator-indirect-property)
(production :member-operator (@ :qualified-identifier) member-operator-coerce)
(production :member-operator (@ :parenthesized-expression) member-operator-indirect-coerce)
(production :arguments (\( :argument-list \)) arguments-argument-list)
(production :argument-list () argument-list-none)
(production :argument-list (:argument-list-prefix) argument-list-some)
(production :argument-list-prefix ((:assignment-expression allow-in)) argument-list-prefix-one)
(production :argument-list-prefix (:argument-list-prefix \, (:assignment-expression allow-in)) argument-list-prefix-more)
(%subsection "Prefix Unary Operators")
(production :unary-expression (:postfix-expression) unary-expression-postfix)
(production :unary-expression (delete :postfix-expression) unary-expression-delete)
(production :unary-expression (typeof :unary-expression) unary-expression-typeof)
(production :unary-expression (eval :unary-expression) unary-expression-eval)
(production :unary-expression (++ :postfix-expression) unary-expression-increment)
(production :unary-expression (-- :postfix-expression) unary-expression-decrement)
(production :unary-expression (+ :unary-expression) unary-expression-plus)
(production :unary-expression (- :unary-expression) unary-expression-minus)
(production :unary-expression (~ :unary-expression) unary-expression-bitwise-not)
(production :unary-expression (! :unary-expression) unary-expression-logical-not)
(%subsection "Multiplicative Operators")
(production :multiplicative-expression (:unary-expression) multiplicative-expression-unary)
(production :multiplicative-expression (:multiplicative-expression * :unary-expression) multiplicative-expression-multiply)
(production :multiplicative-expression (:multiplicative-expression / :unary-expression) multiplicative-expression-divide)
(production :multiplicative-expression (:multiplicative-expression % :unary-expression) multiplicative-expression-remainder)
(%subsection "Additive Operators")
(production :additive-expression (:multiplicative-expression) additive-expression-multiplicative)
(production :additive-expression (:additive-expression + :multiplicative-expression) additive-expression-add)
(production :additive-expression (:additive-expression - :multiplicative-expression) additive-expression-subtract)
(%subsection "Bitwise Shift Operators")
(production :shift-expression (:additive-expression) shift-expression-additive)
(production :shift-expression (:shift-expression << :additive-expression) shift-expression-left)
(production :shift-expression (:shift-expression >> :additive-expression) shift-expression-right-signed)
(production :shift-expression (:shift-expression >>> :additive-expression) shift-expression-right-unsigned)
(%subsection "Relational Operators")
(production (:relational-expression :beta) (:shift-expression) relational-expression-shift)
(production (:relational-expression :beta) ((:relational-expression :beta) < :shift-expression) relational-expression-less)
(production (:relational-expression :beta) ((:relational-expression :beta) > :shift-expression) relational-expression-greater)
(production (:relational-expression :beta) ((:relational-expression :beta) <= :shift-expression) relational-expression-less-or-equal)
(production (:relational-expression :beta) ((:relational-expression :beta) >= :shift-expression) relational-expression-greater-or-equal)
(production (:relational-expression :beta) ((:relational-expression :beta) instanceof :shift-expression) relational-expression-instanceof)
(production (:relational-expression allow-in) ((:relational-expression allow-in) in :shift-expression) relational-expression-in)
(%subsection "Equality Operators")
(production (:equality-expression :beta) ((:relational-expression :beta)) equality-expression-relational)
(production (:equality-expression :beta) ((:equality-expression :beta) == (:relational-expression :beta)) equality-expression-equal)
(production (:equality-expression :beta) ((:equality-expression :beta) != (:relational-expression :beta)) equality-expression-not-equal)
(production (:equality-expression :beta) ((:equality-expression :beta) === (:relational-expression :beta)) equality-expression-strict-equal)
(production (:equality-expression :beta) ((:equality-expression :beta) !== (:relational-expression :beta)) equality-expression-strict-not-equal)
(%subsection "Binary Bitwise Operators")
(production (:bitwise-and-expression :beta) ((:equality-expression :beta)) bitwise-and-expression-equality)
(production (:bitwise-and-expression :beta) ((:bitwise-and-expression :beta) & (:equality-expression :beta)) bitwise-and-expression-and)
(production (:bitwise-xor-expression :beta) ((:bitwise-and-expression :beta)) bitwise-xor-expression-bitwise-and)
(production (:bitwise-xor-expression :beta) ((:bitwise-xor-expression :beta) ^ (:bitwise-and-expression :beta)) bitwise-xor-expression-xor)
(production (:bitwise-xor-expression :beta) ((:bitwise-xor-expression :beta) ^ *) bitwise-xor-expression-null)
(production (:bitwise-xor-expression :beta) ((:bitwise-xor-expression :beta) ^ ?) bitwise-xor-expression-undefined)
(production (:bitwise-or-expression :beta) ((:bitwise-xor-expression :beta)) bitwise-or-expression-bitwise-xor)
(production (:bitwise-or-expression :beta) ((:bitwise-or-expression :beta) \| (:bitwise-xor-expression :beta)) bitwise-or-expression-or)
(production (:bitwise-or-expression :beta) ((:bitwise-or-expression :beta) \| *) bitwise-or-expression-null)
(production (:bitwise-or-expression :beta) ((:bitwise-or-expression :beta) \| ?) bitwise-or-expression-undefined)
(%subsection "Binary Logical Operators")
(production (:logical-and-expression :beta) ((:bitwise-or-expression :beta)) logical-and-expression-bitwise-or)
(production (:logical-and-expression :beta) ((:logical-and-expression :beta) && (:bitwise-or-expression :beta)) logical-and-expression-and)
(production (:logical-or-expression :beta) ((:logical-and-expression :beta)) logical-or-expression-logical-and)
(production (:logical-or-expression :beta) ((:logical-or-expression :beta) \|\| (:logical-and-expression :beta)) logical-or-expression-or)
(%subsection "Conditional Operator")
(production (:conditional-expression :beta) ((:logical-or-expression :beta)) conditional-expression-logical-or)
(production (:conditional-expression :beta) ((:logical-or-expression :beta) ? (:assignment-expression :beta) \: (:assignment-expression :beta)) conditional-expression-conditional)
(production (:non-assignment-expression :beta) ((:logical-or-expression :beta)) non-assignment-expression-logical-or)
(production (:non-assignment-expression :beta) ((:logical-or-expression :beta) ? (:non-assignment-expression :beta) \: (:non-assignment-expression :beta)) non-assignment-expression-conditional)
(%subsection "Assignment Operators")
(production (:assignment-expression :beta) ((:conditional-expression :beta)) assignment-expression-conditional)
(production (:assignment-expression :beta) (:postfix-expression = (:assignment-expression :beta)) assignment-expression-assignment)
(production (:assignment-expression :beta) (:postfix-expression :compound-assignment (:assignment-expression :beta)) assignment-expression-compound)
(production :compound-assignment (*=) compound-assignment-multiply)
(production :compound-assignment (/=) compound-assignment-divide)
(production :compound-assignment (%=) compound-assignment-remainder)
(production :compound-assignment (+=) compound-assignment-add)
(production :compound-assignment (-=) compound-assignment-subtract)
(production :compound-assignment (<<=) compound-assignment-shift-left)
(production :compound-assignment (>>=) compound-assignment-shift-right)
(production :compound-assignment (>>>=) compound-assignment-shift-right-unsigned)
(production :compound-assignment (&=) compound-assignment-and)
(production :compound-assignment (^=) compound-assignment-or)
(production :compound-assignment (\|=) compound-assignment-xor)
(%subsection "Expressions")
(production (:expression :beta) ((:assignment-expression :beta)) expression-assignment)
(production (:expression :beta) ((:expression :beta) \, (:assignment-expression :beta)) expression-comma)
(production :optional-expression ((:expression allow-in)) optional-expression-expression)
(production :optional-expression () optional-expression-empty)
(%subsection "Type Expressions")
(production (:type-expression :beta) ((:non-assignment-expression :beta)) type-expression-non-assignment-expression)
(%section "Statements")
(grammar-argument :delta
top ;top level in a package or program
class ;top level in a class definition
block) ;top level in a block
(grammar-argument :omega
abbrev ;optional semicolon when followed by a '}', 'else', or 'while' in a do-while
abbrev-non-empty ;optional semicolon as long as statement isn't empty
abbrev-no-short-if ;optional semicolon, but statement must not end with an if without an else
full) ;semicolon required at the end
(grammar-argument :omega_3 abbrev abbrev-non-empty full)
(grammar-argument :omega_2 abbrev full)
(production (:statement :delta :omega_3) ((:code-statement :omega_3)) statement-code-statement)
(production (:statement :delta :omega_3) ((:definition :delta :omega_3)) statement-definition)
(production (:code-statement :omega) ((:empty-statement :omega)) code-statement-empty-statement)
(production (:code-statement :omega) (:expression-statement (:semicolon :omega)) code-statement-expression-statement)
(production (:code-statement :omega) ((:block block)) code-statement-block)
(production (:code-statement :omega) ((:labeled-statement :omega)) code-statement-labeled-statement)
(production (:code-statement :omega) ((:if-statement :omega)) code-statement-if-statement)
(production (:code-statement :omega) (:switch-statement) code-statement-switch-statement)
(production (:code-statement :omega) (:do-statement (:semicolon :omega)) code-statement-do-statement)
(production (:code-statement :omega) ((:while-statement :omega)) code-statement-while-statement)
(production (:code-statement :omega) ((:for-statement :omega)) code-statement-for-statement)
(production (:code-statement :omega) ((:with-statement :omega)) code-statement-with-statement)
(production (:code-statement :omega) (:continue-statement (:semicolon :omega)) code-statement-continue-statement)
(production (:code-statement :omega) (:break-statement (:semicolon :omega)) code-statement-break-statement)
(production (:code-statement :omega) (:return-statement (:semicolon :omega)) code-statement-return-statement)
(production (:code-statement :omega) (:throw-statement (:semicolon :omega)) code-statement-throw-statement)
(production (:code-statement :omega) (:try-statement) code-statement-try-statement)
(production (:code-statement :omega) ((:import-statement :omega)) code-statement-import-statement)
(production (:semicolon :omega) (\;) semicolon-semicolon)
(production (:semicolon abbrev) () semicolon-abbrev)
(production (:semicolon abbrev-non-empty) () semicolon-abbrev-non-empty)
(production (:semicolon abbrev-no-short-if) () semicolon-abbrev-no-short-if)
(%subsection "Empty Statement")
(production (:empty-statement :omega) (\;) empty-statement-semicolon)
(production (:empty-statement abbrev) () empty-statement-abbrev)
(production (:empty-statement abbrev-no-short-if) () empty-statement-abbrev-no-short-if)
(%subsection "Expression Statement")
(production :expression-statement ((:- function {) (:expression allow-in)) expression-statement-expression)
(%subsection "Block")
(exclude (:block top))
(production (:block :delta) ({ (:statements :delta) }) block-statements)
(production (:statements :delta) ((:statement :delta abbrev)) statements-one)
(production (:statements :delta) ((:statements-prefix :delta) (:statement :delta abbrev-non-empty)) statements-more)
(production (:statements-prefix :delta) ((:statement :delta full)) statements-prefix-one)
(production (:statements-prefix :delta) ((:statements-prefix :delta) (:statement :delta full)) statements-prefix-more)
(%subsection "Labeled Statements")
(production (:labeled-statement :omega) (:identifier \: (:code-statement :omega)) labeled-statement-label)
(%subsection "If Statement")
(production (:if-statement abbrev) (if :parenthesized-expression (:code-statement abbrev)) if-statement-if-then-abbrev)
(production (:if-statement abbrev-non-empty) (if :parenthesized-expression (:code-statement abbrev-non-empty)) if-statement-if-then-abbrev-non-empty)
(production (:if-statement full) (if :parenthesized-expression (:code-statement full)) if-statement-if-then-full)
(production (:if-statement :omega) (if :parenthesized-expression (:code-statement abbrev-no-short-if)
else (:code-statement :omega)) if-statement-if-then-else)
(%subsection "Switch Statement")
(production :switch-statement (switch :parenthesized-expression { }) switch-statement-empty)
(production :switch-statement (switch :parenthesized-expression { :case-groups :last-case-group }) switch-statement-cases)
(production :case-groups () case-groups-empty)
(production :case-groups (:case-groups :case-group) case-groups-more)
(production :case-group (:case-guards :case-statements-prefix) case-group-case-statements-prefix)
(production :last-case-group (:case-guards :case-statements) last-case-group-case-statements)
(production :case-guards (:case-guard) case-guards-one)
(production :case-guards (:case-guards :case-guard) case-guards-more)
(production :case-guard (case (:expression allow-in) \:) case-guard-case)
(production :case-guard (default \:) case-guard-default)
(production :case-statements ((:code-statement abbrev)) case-statements-one)
(production :case-statements (:case-statements-prefix (:code-statement abbrev-non-empty)) case-statements-more)
(production :case-statements-prefix ((:code-statement full)) case-statements-prefix-one)
(production :case-statements-prefix (:case-statements-prefix (:code-statement full)) case-statements-prefix-more)
(%subsection "Do-While Statement")
(production :do-statement (do (:code-statement abbrev-non-empty) while :parenthesized-expression) do-statement-do-while)
(%subsection "While Statement")
(production (:while-statement :omega) (while :parenthesized-expression (:code-statement :omega)) while-statement-while)
(%subsection "For Statements")
(production (:for-statement :omega) (for \( :for-initializer \; :optional-expression \; :optional-expression \)
(:code-statement :omega)) for-statement-c-style)
(production (:for-statement :omega) (for \( :for-in-binding in (:expression allow-in) \) (:code-statement :omega)) for-statement-in)
(production :for-initializer () for-initializer-empty)
(production :for-initializer ((:expression no-in)) for-initializer-expression)
(production :for-initializer (:variable-definition-kind (:variable-binding-list no-in)) for-initializer-variable-definition)
(production :for-in-binding (:postfix-expression) for-in-binding-expression)
(production :for-in-binding (:variable-definition-kind (:variable-binding no-in)) for-in-binding-variable-definition)
(%subsection "With Statement")
(production (:with-statement :omega) (with :parenthesized-expression (:code-statement :omega)) with-statement-with)
(%subsection "Continue and Break Statements")
(production :continue-statement (continue :optional-label) continue-statement-optional-label)
(production :break-statement (break :optional-label) break-statement-optional-label)
(production :optional-label () optional-label-default)
(production :optional-label (:identifier) optional-label-identifier)
(%subsection "Return Statement")
(production :return-statement (return :optional-expression) return-statement-optional-expression)
(%subsection "Throw Statement")
(production :throw-statement (throw (:expression allow-in)) throw-statement-throw)
(%subsection "Try Statement")
(production :try-statement (try (:block block) :catch-clauses) try-statement-catch-clauses)
(production :try-statement (try (:block block) :finally-clause) try-statement-finally-clause)
(production :try-statement (try (:block block) :catch-clauses :finally-clause) try-statement-catch-clauses-finally-clause)
(production :catch-clauses (:catch-clause) catch-clauses-one)
(production :catch-clauses (:catch-clauses :catch-clause) catch-clauses-more)
(production :catch-clause (catch \( (:typed-identifier allow-in) \) (:block block)) catch-clause-block)
(production :finally-clause (finally (:block block)) finally-clause-block)
(%subsection "Import Statement")
(production (:import-statement :omega) (import :import-list (:semicolon :omega)) import-statement-import)
(production (:import-statement abbrev) (import :import-list (:block block)) import-statement-import-then-abbrev)
(production (:import-statement abbrev-non-empty) (import :import-list (:block block)) import-statement-import-then-abbrev-non-empty)
(production (:import-statement full) (import :import-list (:block block)) import-statement-import-then-full)
(production (:import-statement :omega) (import :import-list (:block block) else (:code-statement :omega)) import-statement-import-then-else)
(production :import-list (:import-item) import-list-one)
(production :import-list (:import-list \, :import-item) import-list-more)
(production :import-item (:import-source) import-item-import-source)
(production :import-item (:identifier = :import-source) import-item-named-import-source)
(production :import-item (protected :identifier = :import-source) import-item-protected-import-source)
(production :import-source ((:non-assignment-expression no-in)) import-source-no-version)
(production :import-source ((:non-assignment-expression no-in) \: :version) import-source-version)
(%section "Definitions")
(production (:definition :delta :omega_3) (:visibility (:global-definition :omega_3)) definition-global-definition)
(production (:definition :delta :omega_3) ((:local-definition :delta :omega_3)) definition-local-definition)
(production (:global-definition :omega_3) (:version-definition (:semicolon :omega_3)) global-definition-version-definition)
(production (:global-definition :omega_3) (:variable-definition (:semicolon :omega_3)) global-definition-variable-definition)
(production (:global-definition :omega_3) (:function-definition) global-definition-function-definition)
(production (:global-definition :omega_3) ((:member-definition :omega_3)) global-definition-member-definition)
(production (:global-definition :omega_3) (:class-definition) global-definition-class-definition)
(production (:local-definition top :omega_3) (:version-definition (:semicolon :omega_3)) local-definition-top-version-definition)
(production (:local-definition top :omega_3) (:variable-definition (:semicolon :omega_3)) local-definition-top-variable-definition)
(production (:local-definition top :omega_3) (:function-definition) local-definition-top-function-definition)
(production (:local-definition top :omega_3) (:class-definition) local-definition-top-class-definition)
(production (:local-definition class :omega_3) (:variable-definition (:semicolon :omega_3)) local-definition-class-variable-definition)
(production (:local-definition class :omega_3) (:function-definition) local-definition-class-function-definition)
(production (:local-definition class :omega_3) ((:member-definition :omega_3)) local-definition-class-member-definition)
(production (:local-definition class :omega_3) (:class-definition) local-definition-class-class-definition)
(production (:local-definition block :omega_3) (:variable-definition (:semicolon :omega_3)) local-definition-block-variable-definition)
(production (:local-definition block :omega_3) (:function-definition) local-definition-block-function-definition)
(%subsection "Visibility Specifications")
(production :visibility (private) visibility-private)
(production :visibility (package) visibility-package)
(production :visibility (public :versions-and-renames) visibility-public)
(production :versions-and-renames () versions-and-renames-none)
(production :versions-and-renames (:versions-and-renames-prefix) versions-and-renames-some)
(production :versions-and-renames-prefix (:version-range-and-alias) versions-and-renames-prefix-one)
(production :versions-and-renames-prefix (:versions-and-renames-prefix \, :version-range-and-alias) versions-and-renames-prefix-more)
(production :version-range-and-alias (:version-range) version-range-and-alias-version-range)
(production :version-range-and-alias (:version-range \: :identifier) version-range-and-alias-version-range-and-alias)
(production :version-range (:version) version-range-singleton)
(production :version-range (:optional-version \.\. :optional-version) version-range-range)
(%subsection "Versions")
(production :optional-version (:version) optional-version-version)
(production :optional-version () optional-version-none)
(production :version ($string) version-string)
(%subsection "Version Definition")
(production :version-definition (version :version) version-definition-version)
(production :version-definition (version :version > :version-list) version-definition-ranked-version)
(production :version-definition (version :version = :version) version-definition-alias)
(production :version-list (:version) version-list-one)
(production :version-list (:version-list \, :version) version-list-more)
(%subsection "Variable Definition")
(production :variable-definition (:variable-definition-kind (:variable-binding-list allow-in)) variable-definition-definition)
(production :variable-definition-kind (var) variable-definition-kind-var)
(production :variable-definition-kind (const) variable-definition-kind-const)
(production (:variable-binding-list :beta) ((:variable-binding :beta)) variable-binding-list-one)
(production (:variable-binding-list :beta) ((:variable-binding-list :beta) \, (:variable-binding :beta)) variable-binding-list-more)
(production (:variable-binding :beta) ((:typed-identifier :beta) (:variable-initializer :beta)) variable-binding-initializer)
(production (:typed-identifier :beta) (:identifier) typed-identifier-identifier)
(production (:typed-identifier :beta) ((:type-expression :beta) :identifier) typed-identifier-type-and-identifier)
(production (:variable-initializer :beta) () variable-initializer-empty)
(production (:variable-initializer :beta) (= (:assignment-expression :beta)) variable-initializer-assignment-expression)
(%subsection "Function Definition")
(production :function-definition (:named-function) function-definition-named-function)
(production :function-definition (getter :named-function) function-definition-getter-function)
(production :function-definition (setter :named-function) function-definition-setter-function)
(production :function-definition (:traditional-function) function-definition-traditional-function)
(production :anonymous-function (function :function-signature (:block block)) anonymous-function-signature-and-body)
(production :named-function (function :identifier :function-signature (:block block)) named-function-signature-and-body)
(production :function-signature (:parameter-signature :result-signature) function-signature-parameter-and-result-signatures)
(production :parameter-signature (\( :parameters \)) parameter-signature-parameters)
(production :parameters () parameters-none)
(production :parameters (:rest-parameter) parameters-rest)
(production :parameters (:required-parameters) parameters-required-parameters)
(production :parameters (:optional-parameters) parameters-optional-parameters)
(production :parameters (:required-parameters \, :rest-parameter) parameters-required-and-rest)
(production :parameters (:optional-parameters \, :rest-parameter) parameters-optional-and-rest)
(production :required-parameters (:required-parameter) required-parameters-one)
(production :required-parameters (:required-parameters \, :required-parameter) required-parameters-more)
(production :optional-parameters (:optional-parameter) optional-parameters-one)
(production :optional-parameters (:required-parameters \, :optional-parameter) optional-parameters-required-more)
(production :optional-parameters (:optional-parameters \, :optional-parameter) optional-parameters-optional-more)
(production :required-parameter ((:typed-identifier allow-in)) required-parameter-typed-identifier)
(production :optional-parameter ((:typed-identifier allow-in) =) optional-parameter-default)
(production :optional-parameter ((:typed-identifier allow-in) = (:assignment-expression allow-in)) optional-parameter-assignment-expression)
(production :rest-parameter (\.\.\.) rest-parameter-none)
(production :rest-parameter (\.\.\. :identifier) rest-parameter-identifier)
(production :result-signature () result-signature-none)
(production :result-signature ((:- {) (:type-expression allow-in)) result-signature-type-expression)
(production :traditional-function (traditional function :identifier \( :traditional-parameter-list \) (:block block)) traditional-function-signature-and-body)
(production :traditional-parameter-list () traditional-parameter-list-none)
(production :traditional-parameter-list (:traditional-parameter-list-prefix) traditional-parameter-list-some)
(production :traditional-parameter-list-prefix (:identifier) traditional-parameter-list-prefix-one)
(production :traditional-parameter-list-prefix (:traditional-parameter-list-prefix \, :identifier) traditional-parameter-list-prefix-more)
(%subsection "Class Member Definitions")
(production (:member-definition :omega_3) (:field-definition (:semicolon :omega_3)) member-definition-field-definition)
(production (:member-definition :omega_3) ((:method-definition :omega_3)) member-definition-method-definition)
(production (:member-definition :omega_3) (:constructor-definition) member-definition-constructor-definition)
(production :field-definition (field (:variable-binding-list allow-in)) field-definition-variable-binding-list)
(production (:method-definition :omega_3) (:concrete-method-definition) method-definition-concrete-method-definition)
(production (:method-definition :omega_3) ((:abstract-method-definition :omega_3)) method-definition-abstract-method-definition)
(production :concrete-method-definition (:method-prefix :identifier :function-signature (:block block)) concrete-method-definition-signature-and-body)
(production (:abstract-method-definition :omega_3) (:method-prefix :identifier :function-signature (:semicolon :omega_3)) abstract-method-definition-signature)
(production :method-prefix (:method-kind) method-prefix-method)
(production :method-prefix (override :method-kind) method-prefix-override-method)
(production :method-prefix (final :method-kind) method-prefix-final-method)
(production :method-prefix (final override :method-kind) method-prefix-final-override-method)
(production :method-kind (method) method-kind-method)
(production :method-kind (getter method) method-kind-getter-method)
(production :method-kind (setter method) method-kind-setter-method)
(production :constructor-definition (constructor :constructor-name :parameter-signature (:block block)) constructor-definition-signature-and-body)
(production :constructor-name (new) constructor-name-new)
(production :constructor-name (:identifier) constructor-name-identifier)
(%section "Class Definition")
(production :class-definition (class :identifier :superclasses (:block class)) class-definition-normal)
(production :class-definition (class extends (:type-expression allow-in) (:block class)) class-definition-augmented)
(production :superclasses () superclasses-none)
(production :superclasses (extends (:type-expression allow-in)) superclasses-one)
(%section "Programs")
(production :program ((:statements top)) program-statements)
)))
(defparameter *jg* (world-grammar *jw* 'code-grammar)))
(defun depict-js-terminals (markup-stream grammar)
(labels
((terminal-bin (terminal)
(if (and terminal (symbolp terminal))
(let ((name (symbol-name terminal)))
(if (> (length name) 0)
(let ((first-char (char name 0)))
(cond
((char= first-char #\$) 0)
((not (or (char= first-char #\_) (alphanumericp first-char))) 1)
((member terminal (rule-productions (grammar-rule grammar ':identifier))
:key #'(lambda (production) (first (production-rhs production))))
5)
(t 3)))
1))
1))
(depict-terminal-bin (bin-name bin-terminals)
(when bin-terminals
(depict-paragraph (markup-stream ':body-text)
(depict markup-stream bin-name)
(depict-list markup-stream #'depict-terminal bin-terminals :separator '(" " :spc " "))))))
(let ((bins (make-array 6 :initial-element nil))
(terminals (grammar-terminals grammar)))
(setf (svref bins 2) (list '\# '&&= '-> '@ '^^ '^^= '\|\|=))
(setf (svref bins 4) (list 'abstract 'debugger 'enum 'export 'goto 'implements 'native 'package 'protected 'static 'super 'synchronized
'throws 'transient 'volatile 'with))
(do ((i (length terminals)))
((zerop i))
(let ((terminal (aref terminals (decf i))))
(unless (eq terminal *end-marker*)
(setf (svref bins 2) (delete terminal (svref bins 2)))
(setf (svref bins 4) (delete terminal (svref bins 4)))
(push terminal (svref bins (terminal-bin terminal))))))
(depict-paragraph (markup-stream ':section-heading)
(depict markup-stream "Terminals"))
(mapc #'depict-terminal-bin '("General tokens: " "Punctuation tokens: " "Future punctuation tokens: "
"Reserved words: " "Future reserved words: " "Non-reserved words: ")
(coerce bins 'list)))))
#|
(depict-rtf-to-local-file
";JS20;ParserGrammar.rtf"
"JavaScript 2.0 Parser Grammar"
#'(lambda (markup-stream)
(depict-js-terminals markup-stream *jg*)
(depict-world-commands markup-stream *jw* :visible-semantics nil)))
(depict-html-to-local-file
";JS20;ParserGrammar.html"
"JavaScript 2.0 Parser Grammar"
t
#'(lambda (markup-stream)
(depict-js-terminals markup-stream *jg*)
(depict-world-commands markup-stream *jw* :visible-semantics nil)))
(with-local-output (s ";JS20;ParserGrammar.txt") (print-grammar *jg* s))
|#
(length (grammar-states *jg*))