Separate parser and generator from plugin
Change-Id: I7db134fe882c73fc6fec730f6d6e44f49ada0422
diff --git a/parser/src/main/resources/CopyrightHeader.txt b/parser/src/main/resources/CopyrightHeader.txt
new file mode 100644
index 0000000..2cbed45
--- /dev/null
+++ b/parser/src/main/resources/CopyrightHeader.txt
@@ -0,0 +1,14 @@
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
diff --git a/parser/src/main/resources/GeneratedYang.g4 b/parser/src/main/resources/GeneratedYang.g4
new file mode 100644
index 0000000..0362cb0
--- /dev/null
+++ b/parser/src/main/resources/GeneratedYang.g4
@@ -0,0 +1,1347 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * This is a YANG grammar for parser based on which ANTLR will generate YANG parser.
+ */
+
+grammar GeneratedYang;
+import YangLexer;
+
+@header {
+package org.onosproject.yangutils.parser.antlrgencode;
+}
+
+ yangfile : moduleStatement EOF
+ | subModuleStatement EOF;
+
+ /**
+ * module-stmt = optsep module-keyword sep identifier-arg-str
+ * optsep
+ * "{" stmtsep
+ * module-header-stmts
+ * linkage-stmts
+ * meta-stmts
+ * revision-stmts
+ * body-stmts
+ * "}" optsep
+ */
+
+ moduleStatement : MODULE_KEYWORD identifier LEFT_CURLY_BRACE moduleBody RIGHT_CURLY_BRACE;
+
+ moduleBody : moduleHeaderStatement linkageStatements metaStatements revisionStatements bodyStatements;
+
+ /**
+ * module-header-stmts = ;; these stmts can appear in any order
+ * [yang-version-stmt stmtsep]
+ * namespace-stmt stmtsep
+ * prefix-stmt stmtsep
+ */
+
+ moduleHeaderStatement : yangVersionStatement? namespaceStatement prefixStatement
+ | yangVersionStatement? prefixStatement namespaceStatement
+ | namespaceStatement yangVersionStatement? prefixStatement
+ | namespaceStatement prefixStatement yangVersionStatement?
+ | prefixStatement namespaceStatement yangVersionStatement?
+ | prefixStatement yangVersionStatement? namespaceStatement
+ ;
+
+ /**
+ * linkage-stmts = ;; these stmts can appear in any order
+ * *(import-stmt stmtsep)
+ * *(include-stmt stmtsep)
+ */
+ linkageStatements : (importStatement
+ | includeStatement)*;
+
+ /**
+ * meta-stmts = ;; these stmts can appear in any order
+ * [organization-stmt stmtsep]
+ * [contact-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ */
+ metaStatements : organizationStatement? contactStatement? descriptionStatement? referenceStatement?
+ | organizationStatement? contactStatement? referenceStatement? descriptionStatement?
+ | organizationStatement? descriptionStatement? contactStatement? referenceStatement?
+ | organizationStatement? descriptionStatement? referenceStatement? contactStatement?
+ | organizationStatement? referenceStatement? contactStatement? descriptionStatement?
+ | organizationStatement? referenceStatement? descriptionStatement? contactStatement?
+ | contactStatement? organizationStatement? descriptionStatement? referenceStatement?
+ | contactStatement? organizationStatement? referenceStatement? descriptionStatement?
+ | contactStatement? referenceStatement? organizationStatement? descriptionStatement?
+ | contactStatement? referenceStatement? descriptionStatement? organizationStatement?
+ | contactStatement? descriptionStatement? referenceStatement? organizationStatement?
+ | contactStatement? descriptionStatement? organizationStatement? referenceStatement?
+ | referenceStatement? contactStatement? organizationStatement? descriptionStatement?
+ | referenceStatement? contactStatement? descriptionStatement? organizationStatement?
+ | referenceStatement? organizationStatement? contactStatement? descriptionStatement?
+ | referenceStatement? organizationStatement? descriptionStatement? contactStatement?
+ | referenceStatement? descriptionStatement? organizationStatement? contactStatement?
+ | referenceStatement? descriptionStatement? contactStatement? organizationStatement?
+ | descriptionStatement? referenceStatement? contactStatement? organizationStatement?
+ | descriptionStatement? referenceStatement? organizationStatement? contactStatement?
+ | descriptionStatement? contactStatement? referenceStatement? organizationStatement?
+ | descriptionStatement? contactStatement? organizationStatement? referenceStatement?
+ | descriptionStatement? organizationStatement? contactStatement? referenceStatement?
+ | descriptionStatement? organizationStatement? referenceStatement? contactStatement?
+ ;
+
+ // revision-stmts = *(revision-stmt stmtsep)
+ revisionStatements : revisionStatement*;
+
+ /**
+ * body-stmts = *((extension-stmt /
+ * feature-stmt /
+ * identity-stmt /
+ * typedef-stmt /
+ * grouping-stmt /
+ * data-def-stmt /
+ * augment-stmt /
+ * rpc-stmt /
+ * notification-stmt /
+ * deviation-stmt) stmtsep)
+ */
+ bodyStatements : (extensionStatement
+ | featureStatement
+ | identityStatement
+ | typedefStatement
+ | groupingStatement
+ | dataDefStatement
+ | augmentStatement
+ | rpcStatement
+ | notificationStatement
+ | deviationStatement
+ | compilerAnnotationStatement)*
+ ;
+
+ /**
+ * yang-version-stmt = yang-version-keyword sep yang-version-arg-str
+ * optsep stmtend
+ */
+ yangVersionStatement : YANG_VERSION_KEYWORD version STMTEND;
+
+
+ /**
+ * namespace-stmt = namespace-keyword sep uri-str optsep stmtend
+ * For namespace validation TODO in Listener
+ */
+ namespaceStatement : NAMESPACE_KEYWORD string STMTEND;
+
+ /**
+ * prefix-stmt = prefix-keyword sep prefix-arg-str
+ * optsep stmtend
+ */
+ prefixStatement : PREFIX_KEYWORD identifier STMTEND;
+
+ /**
+ * import-stmt = import-keyword sep identifier-arg-str optsep
+ * "{" stmtsep
+ * prefix-stmt stmtsep
+ * [revision-date-stmt stmtsep]
+ * "}"
+ */
+ importStatement : IMPORT_KEYWORD identifier LEFT_CURLY_BRACE importStatementBody RIGHT_CURLY_BRACE;
+
+ importStatementBody : prefixStatement revisionDateStatement?;
+
+ // revision-date-stmt = revision-date-keyword sep revision-date stmtend
+ revisionDateStatement : REVISION_DATE_KEYWORD dateArgumentString STMTEND;
+
+ /**
+ * include-stmt = include-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * [revision-date-stmt stmtsep]
+ * "}")
+ */
+ includeStatement : INCLUDE_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE revisionDateStatement? RIGHT_CURLY_BRACE);
+
+ /**
+ * organization-stmt = organization-keyword sep string
+ * optsep stmtend
+ */
+ organizationStatement : ORGANIZATION_KEYWORD string STMTEND;
+
+ // contact-stmt = contact-keyword sep string optsep stmtend
+ contactStatement : CONTACT_KEYWORD string STMTEND;
+
+ // description-stmt = description-keyword sep string optsep stmtend
+ descriptionStatement : DESCRIPTION_KEYWORD string STMTEND;
+
+ // reference-stmt = reference-keyword sep string optsep stmtend
+ referenceStatement : REFERENCE_KEYWORD string STMTEND;
+
+ /**
+ * revision-stmt = revision-keyword sep revision-date optsep
+ * (";" /
+ * "{" stmtsep
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ revisionStatement : REVISION_KEYWORD dateArgumentString (STMTEND | LEFT_CURLY_BRACE revisionStatementBody RIGHT_CURLY_BRACE);
+ revisionStatementBody : descriptionStatement? referenceStatement?;
+
+ /**
+ * submodule-stmt = optsep submodule-keyword sep identifier-arg-str
+ * optsep
+ * "{" stmtsep
+ * submodule-header-stmts
+ * linkage-stmts
+ * meta-stmts
+ * revision-stmts
+ * body-stmts
+ * "}" optsep
+ */
+ subModuleStatement : SUBMODULE_KEYWORD identifier LEFT_CURLY_BRACE submoduleBody RIGHT_CURLY_BRACE;
+ submoduleBody : submoduleHeaderStatement linkageStatements metaStatements revisionStatements bodyStatements;
+
+ /** submodule-header-stmts =
+ * ;; these stmts can appear in any order
+ * [yang-version-stmt stmtsep]
+ * belongs-to-stmt stmtsep
+ */
+ submoduleHeaderStatement : yangVersionStatement? belongstoStatement
+ | belongstoStatement yangVersionStatement?
+ ;
+
+ /**
+ * belongs-to-stmt = belongs-to-keyword sep identifier-arg-str
+ * optsep
+ * "{" stmtsep
+ * prefix-stmt stmtsep
+ * "}"
+ */
+ belongstoStatement : BELONGS_TO_KEYWORD identifier LEFT_CURLY_BRACE belongstoStatementBody RIGHT_CURLY_BRACE;
+ belongstoStatementBody : prefixStatement;
+
+ /**
+ * extension-stmt = extension-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [argument-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ extensionStatement : EXTENSION_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE extensionBody RIGHT_CURLY_BRACE);
+ extensionBody : argumentStatement? statusStatement? descriptionStatement? referenceStatement?
+ | argumentStatement? statusStatement? referenceStatement? descriptionStatement?
+ | argumentStatement? descriptionStatement? statusStatement? referenceStatement?
+ | argumentStatement? descriptionStatement? referenceStatement? statusStatement?
+ | argumentStatement? referenceStatement? descriptionStatement? statusStatement?
+ | argumentStatement? referenceStatement? statusStatement? descriptionStatement?
+ | statusStatement? referenceStatement? argumentStatement? descriptionStatement?
+ | statusStatement? referenceStatement? descriptionStatement? argumentStatement?
+ | statusStatement? descriptionStatement? referenceStatement? argumentStatement?
+ | statusStatement? descriptionStatement? argumentStatement? referenceStatement?
+ | statusStatement? argumentStatement? referenceStatement? descriptionStatement?
+ | statusStatement? argumentStatement? descriptionStatement? referenceStatement?
+ | descriptionStatement? argumentStatement? statusStatement? referenceStatement?
+ | descriptionStatement? argumentStatement? referenceStatement? statusStatement?
+ | descriptionStatement? statusStatement? argumentStatement? referenceStatement?
+ | descriptionStatement? statusStatement? referenceStatement? argumentStatement?
+ | descriptionStatement? referenceStatement? statusStatement? argumentStatement?
+ | descriptionStatement? referenceStatement? argumentStatement? statusStatement?
+ | referenceStatement? descriptionStatement? argumentStatement? statusStatement?
+ | referenceStatement? descriptionStatement? statusStatement? argumentStatement?
+ | referenceStatement? statusStatement? argumentStatement? descriptionStatement?
+ | referenceStatement? statusStatement? descriptionStatement? argumentStatement?
+ | referenceStatement? argumentStatement? descriptionStatement? statusStatement?
+ | referenceStatement? argumentStatement? statusStatement? descriptionStatement?
+ ;
+
+ /**
+ * argument-stmt = argument-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * [yin-element-stmt stmtsep]
+ * "}")
+ */
+ argumentStatement : ARGUMENT_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE argumentBody RIGHT_CURLY_BRACE);
+ argumentBody : yinElementStatement?;
+
+ /**
+ * yin-element-stmt = yin-element-keyword sep yin-element-arg-str
+ * stmtend
+ */
+ yinElementStatement : YIN_ELEMENT_KEYWORD (TRUE_KEYWORD | FALSE_KEYWORD) STMTEND;
+
+ /**
+ * identity-stmt = identity-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [base-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ identityStatement : IDENTITY_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE identityBody RIGHT_CURLY_BRACE);
+ identityBody : baseStatement? statusStatement? descriptionStatement? referenceStatement?
+ | baseStatement? statusStatement? referenceStatement? descriptionStatement?
+ | baseStatement? descriptionStatement? statusStatement? referenceStatement?
+ | baseStatement? descriptionStatement? referenceStatement? statusStatement?
+ | baseStatement? referenceStatement? descriptionStatement? statusStatement?
+ | baseStatement? referenceStatement? statusStatement? descriptionStatement?
+ | referenceStatement? baseStatement? statusStatement? descriptionStatement?
+ | referenceStatement? baseStatement? descriptionStatement? statusStatement?
+ | referenceStatement? statusStatement? baseStatement? descriptionStatement?
+ | referenceStatement? statusStatement? descriptionStatement? baseStatement?
+ | referenceStatement? descriptionStatement? statusStatement? baseStatement?
+ | referenceStatement? descriptionStatement? baseStatement? statusStatement?
+ | descriptionStatement? referenceStatement? statusStatement? baseStatement?
+ | descriptionStatement? referenceStatement? statusStatement? baseStatement?
+ | descriptionStatement? referenceStatement? baseStatement? statusStatement?
+ | descriptionStatement? statusStatement? baseStatement? referenceStatement?
+ | descriptionStatement? statusStatement? referenceStatement? baseStatement?
+ | descriptionStatement? baseStatement? referenceStatement? statusStatement?
+ | descriptionStatement? baseStatement? statusStatement? referenceStatement?
+ | statusStatement? baseStatement? descriptionStatement? referenceStatement?
+ | statusStatement? baseStatement? referenceStatement? descriptionStatement?
+ | statusStatement? descriptionStatement? baseStatement? referenceStatement?
+ | statusStatement? descriptionStatement? referenceStatement? baseStatement?
+ | statusStatement? referenceStatement? descriptionStatement? baseStatement?
+ | statusStatement? referenceStatement? baseStatement? descriptionStatement?
+ ;
+
+ /**
+ * base-stmt = base-keyword sep identifier-ref-arg-str
+ * optsep stmtend*
+ * identifier-ref-arg = [prefix ":"] identifier
+ */
+ baseStatement : BASE_KEYWORD string STMTEND;
+
+ /**
+ * feature-stmt = feature-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * *(if-feature-stmt stmtsep)
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ featureStatement : FEATURE_KEYWORD string (STMTEND | LEFT_CURLY_BRACE featureBody RIGHT_CURLY_BRACE);
+ featureBody : ifFeatureStatement* statusStatement? descriptionStatement? referenceStatement?
+ | ifFeatureStatement* statusStatement? referenceStatement? descriptionStatement?
+ | ifFeatureStatement* descriptionStatement? statusStatement? referenceStatement?
+ | ifFeatureStatement* descriptionStatement? referenceStatement? statusStatement?
+ | ifFeatureStatement* referenceStatement? statusStatement? descriptionStatement?
+ | ifFeatureStatement* referenceStatement? descriptionStatement? statusStatement?
+ | statusStatement? ifFeatureStatement* descriptionStatement? referenceStatement?
+ | statusStatement? ifFeatureStatement* referenceStatement? descriptionStatement?
+ | statusStatement? descriptionStatement? ifFeatureStatement* referenceStatement?
+ | statusStatement? descriptionStatement? referenceStatement? ifFeatureStatement*
+ | statusStatement? referenceStatement? ifFeatureStatement* descriptionStatement?
+ | statusStatement? referenceStatement? descriptionStatement? ifFeatureStatement*
+ | descriptionStatement? ifFeatureStatement* statusStatement? referenceStatement?
+ | descriptionStatement? ifFeatureStatement* referenceStatement? statusStatement?
+ | descriptionStatement? statusStatement? ifFeatureStatement* referenceStatement?
+ | descriptionStatement? statusStatement? referenceStatement? ifFeatureStatement*
+ | descriptionStatement? referenceStatement* statusStatement? ifFeatureStatement*
+ | descriptionStatement? referenceStatement* ifFeatureStatement? statusStatement?
+ | referenceStatement? ifFeatureStatement* statusStatement? descriptionStatement?
+ | referenceStatement? ifFeatureStatement* descriptionStatement? statusStatement?
+ | referenceStatement? descriptionStatement? statusStatement? ifFeatureStatement*
+ | referenceStatement? descriptionStatement? ifFeatureStatement* statusStatement?
+ | referenceStatement? statusStatement? descriptionStatement? ifFeatureStatement*
+ | referenceStatement? statusStatement? ifFeatureStatement* descriptionStatement?
+ ;
+
+ /**
+ * data-def-stmt = container-stmt /
+ * leaf-stmt /
+ * leaf-list-stmt /
+ * list-stmt /
+ * choice-stmt /
+ * anyxml-stmt /
+ * uses-stmt
+ */
+ dataDefStatement : containerStatement
+ | leafStatement
+ | leafListStatement
+ | listStatement
+ | choiceStatement
+ | anyxmlStatement
+ | usesStatement;
+
+ /**
+ * if-feature-stmt = if-feature-keyword sep identifier-ref-arg-str
+ * optsep stmtend
+ */
+ ifFeatureStatement : IF_FEATURE_KEYWORD string STMTEND;
+
+ /**
+ * units-stmt = units-keyword sep string optsep stmtend
+ */
+ unitsStatement : UNITS_KEYWORD string STMTEND;
+
+ /**
+ * typedef-stmt = typedef-keyword sep identifier-arg-str optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * type-stmt stmtsep
+ * [units-stmt stmtsep]
+ * [default-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}"
+ * TODO : 0..1 occurance to be validated in listener
+ */
+ typedefStatement : TYPEDEF_KEYWORD identifier LEFT_CURLY_BRACE
+ (typeStatement | unitsStatement | defaultStatement | statusStatement | descriptionStatement | referenceStatement)*
+ RIGHT_CURLY_BRACE;
+
+ /**
+ * type-stmt = type-keyword sep identifier-ref-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * type-body-stmts
+ * "}")
+ */
+ typeStatement : TYPE_KEYWORD string (STMTEND | LEFT_CURLY_BRACE typeBodyStatements RIGHT_CURLY_BRACE);
+
+ /**
+ * type-body-stmts = numerical-restrictions /
+ * decimal64-specification /
+ * string-restrictions /
+ * enum-specification /
+ * leafref-specification /
+ * identityref-specification /
+ * instance-identifier-specification /
+ * bits-specification /
+ * union-specification
+ *
+ */
+ typeBodyStatements : numericalRestrictions | decimal64Specification | stringRestrictions | enumSpecification
+ | leafrefSpecification | identityrefSpecification | instanceIdentifierSpecification
+ | bitsSpecification | unionSpecification;
+
+ /**
+ * decimal64-specification = ;; these stmts can appear in any order
+ * fraction-digits-stmt
+ * [range-stmt]
+ */
+ decimal64Specification : fractionDigitStatement rangeStatement?;
+
+ /**
+ * fraction-digits-stmt = fraction-digits-keyword sep
+ * fraction-digits-arg-str stmtend
+ *
+ * fraction-digits-arg-str = < a string that matches the rule
+ * fraction-digits-arg >
+ *
+ * fraction-digits-arg = ("1" ["0" / "1" / "2" / "3" / "4" /
+ * "5" / "6" / "7" / "8"])
+ * / "2" / "3" / "4" / "5" / "6" / "7" / "8" / "9"
+ */
+ fractionDigitStatement : FRACTION_DIGITS_KEYWORD fraction STMTEND;
+
+ /**
+ * numerical-restrictions = range-stmt stmtsep
+ */
+ numericalRestrictions : rangeStatement;
+
+ /**
+ * range-stmt = range-keyword sep range-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [error-message-stmt stmtsep]
+ * [error-app-tag-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ rangeStatement : RANGE_KEYWORD range (STMTEND | LEFT_CURLY_BRACE commonStatements RIGHT_CURLY_BRACE);
+
+ commonStatements : errorMessageStatement? errorAppTagStatement? descriptionStatement? referenceStatement?
+ | errorMessageStatement? errorAppTagStatement? referenceStatement? descriptionStatement?
+ | errorMessageStatement? descriptionStatement? errorAppTagStatement? referenceStatement?
+ | errorMessageStatement? descriptionStatement? referenceStatement? errorAppTagStatement?
+ | errorMessageStatement? referenceStatement? errorAppTagStatement? descriptionStatement?
+ | errorMessageStatement? referenceStatement? descriptionStatement? errorAppTagStatement?
+ | errorAppTagStatement? errorMessageStatement? descriptionStatement? referenceStatement?
+ | errorAppTagStatement? errorMessageStatement? referenceStatement? descriptionStatement?
+ | errorAppTagStatement? descriptionStatement? descriptionStatement? errorMessageStatement?
+ | errorAppTagStatement? descriptionStatement? errorMessageStatement? descriptionStatement?
+ | errorAppTagStatement? referenceStatement? errorMessageStatement? descriptionStatement?
+ | errorAppTagStatement? referenceStatement? descriptionStatement? errorMessageStatement?
+ | descriptionStatement? errorMessageStatement? errorAppTagStatement? referenceStatement?
+ | descriptionStatement? errorMessageStatement? referenceStatement? errorAppTagStatement?
+ | descriptionStatement? errorAppTagStatement? errorMessageStatement? referenceStatement?
+ | descriptionStatement? errorAppTagStatement? referenceStatement? errorMessageStatement?
+ | descriptionStatement? referenceStatement? errorMessageStatement? errorAppTagStatement?
+ | descriptionStatement? referenceStatement? errorAppTagStatement? errorMessageStatement?
+ | referenceStatement? errorMessageStatement? descriptionStatement? errorAppTagStatement?
+ | referenceStatement? errorMessageStatement? errorAppTagStatement? descriptionStatement?
+ | referenceStatement? errorAppTagStatement? descriptionStatement? errorMessageStatement?
+ | referenceStatement? errorAppTagStatement? errorMessageStatement? descriptionStatement?
+ | referenceStatement? descriptionStatement? errorMessageStatement? errorAppTagStatement?
+ | referenceStatement? descriptionStatement? errorAppTagStatement? errorMessageStatement?
+ ;
+
+ /**
+ * string-restrictions = ;; these stmts can appear in any order
+ * [length-stmt stmtsep]
+ * *(pattern-stmt stmtsep)
+ */
+ stringRestrictions : ((lengthStatement)? (patternStatement)*) | ((patternStatement)* (lengthStatement)?);
+
+ /**
+ * length-stmt = length-keyword sep length-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [error-message-stmt stmtsep]
+ * [error-app-tag-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ lengthStatement : LENGTH_KEYWORD length
+ (STMTEND | LEFT_CURLY_BRACE commonStatements RIGHT_CURLY_BRACE);
+
+ /**
+ * pattern-stmt = pattern-keyword sep string optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [error-message-stmt stmtsep]
+ * [error-app-tag-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ patternStatement : PATTERN_KEYWORD string (STMTEND | LEFT_CURLY_BRACE commonStatements RIGHT_CURLY_BRACE);
+
+ /**
+ * default-stmt = default-keyword sep string stmtend
+ */
+ defaultStatement : DEFAULT_KEYWORD string STMTEND;
+
+ /**
+ * enum-specification = 1*(enum-stmt stmtsep)
+ */
+ enumSpecification : enumStatement+;
+
+ /**
+ * enum-stmt = enum-keyword sep string optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [value-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ enumStatement : ENUM_KEYWORD string (STMTEND | LEFT_CURLY_BRACE enumStatementBody RIGHT_CURLY_BRACE);
+
+ enumStatementBody : valueStatement? statusStatement? descriptionStatement? referenceStatement?
+ | valueStatement? statusStatement? referenceStatement? descriptionStatement?
+ | valueStatement? descriptionStatement? statusStatement? referenceStatement?
+ | valueStatement? descriptionStatement? referenceStatement? statusStatement?
+ | valueStatement? referenceStatement? statusStatement? descriptionStatement?
+ | valueStatement? referenceStatement? descriptionStatement? statusStatement?
+ | statusStatement? valueStatement? descriptionStatement? referenceStatement?
+ | statusStatement? valueStatement? referenceStatement? descriptionStatement?
+ | statusStatement? descriptionStatement? descriptionStatement? valueStatement?
+ | statusStatement? descriptionStatement? valueStatement? descriptionStatement?
+ | statusStatement? referenceStatement? valueStatement? descriptionStatement?
+ | statusStatement? referenceStatement? descriptionStatement? valueStatement?
+ | descriptionStatement? valueStatement? statusStatement? referenceStatement?
+ | descriptionStatement? valueStatement? referenceStatement? statusStatement?
+ | descriptionStatement? statusStatement? valueStatement? referenceStatement?
+ | descriptionStatement? statusStatement? referenceStatement? valueStatement?
+ | descriptionStatement? referenceStatement? valueStatement? statusStatement?
+ | descriptionStatement? referenceStatement? statusStatement? valueStatement?
+ | referenceStatement? valueStatement? descriptionStatement? statusStatement?
+ | referenceStatement? valueStatement? statusStatement? descriptionStatement?
+ | referenceStatement? statusStatement? descriptionStatement? valueStatement?
+ | referenceStatement? statusStatement? valueStatement? descriptionStatement?
+ | referenceStatement? descriptionStatement? valueStatement? statusStatement?
+ | referenceStatement? descriptionStatement? statusStatement? valueStatement?
+ ;
+
+ /**
+ * leafref-specification =
+ * ;; these stmts can appear in any order
+ * path-stmt stmtsep
+ * [require-instance-stmt stmtsep]
+ */
+ leafrefSpecification : (pathStatement (requireInstanceStatement)?) | ((requireInstanceStatement)? pathStatement);
+
+ /**
+ * path-stmt = path-keyword sep path-arg-str stmtend
+ */
+ pathStatement : PATH_KEYWORD path STMTEND;
+
+ /**
+ * require-instance-stmt = require-instance-keyword sep
+ * require-instance-arg-str stmtend
+ * require-instance-arg-str = < a string that matches the rule
+ * require-instance-arg >
+ * require-instance-arg = true-keyword / false-keyword
+ */
+ requireInstanceStatement : REQUIRE_INSTANCE_KEYWORD requireInstance STMTEND;
+
+ /**
+ * instance-identifier-specification =
+ * [require-instance-stmt stmtsep]
+ */
+ instanceIdentifierSpecification : requireInstanceStatement?;
+
+ /**
+ * identityref-specification =
+ * base-stmt stmtsep
+ */
+ identityrefSpecification : baseStatement;
+
+ /**
+ * union-specification = 1*(type-stmt stmtsep)
+ */
+ unionSpecification : typeStatement+;
+
+ /**
+ * bits-specification = 1*(bit-stmt stmtsep)
+ */
+ bitsSpecification : bitStatement+;
+
+ /**
+ * bit-stmt = bit-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [position-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}"
+ * "}")
+ */
+ bitStatement : BIT_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE bitBodyStatement RIGHT_CURLY_BRACE);
+
+ bitBodyStatement : positionStatement? statusStatement? descriptionStatement? referenceStatement?
+ | positionStatement? statusStatement? referenceStatement? descriptionStatement?
+ | positionStatement? descriptionStatement? statusStatement? referenceStatement?
+ | positionStatement? descriptionStatement? referenceStatement? statusStatement?
+ | positionStatement? referenceStatement? statusStatement? descriptionStatement?
+ | positionStatement? referenceStatement? descriptionStatement? statusStatement?
+ | statusStatement? positionStatement? descriptionStatement? referenceStatement?
+ | statusStatement? positionStatement? referenceStatement? descriptionStatement?
+ | statusStatement? descriptionStatement? descriptionStatement? positionStatement?
+ | statusStatement? descriptionStatement? positionStatement? descriptionStatement?
+ | statusStatement? referenceStatement? positionStatement? descriptionStatement?
+ | statusStatement? referenceStatement? descriptionStatement? positionStatement?
+ | descriptionStatement? positionStatement? statusStatement? referenceStatement?
+ | descriptionStatement? positionStatement? referenceStatement? statusStatement?
+ | descriptionStatement? statusStatement? positionStatement? referenceStatement?
+ | descriptionStatement? statusStatement? referenceStatement? positionStatement?
+ | descriptionStatement? referenceStatement? positionStatement? statusStatement?
+ | descriptionStatement? referenceStatement? statusStatement? positionStatement?
+ | referenceStatement? positionStatement? descriptionStatement? statusStatement?
+ | referenceStatement? positionStatement? statusStatement? descriptionStatement?
+ | referenceStatement? statusStatement? descriptionStatement? positionStatement?
+ | referenceStatement? statusStatement? positionStatement? descriptionStatement?
+ | referenceStatement? descriptionStatement? positionStatement? statusStatement?
+ | referenceStatement? descriptionStatement? statusStatement? positionStatement?
+ ;
+
+ /**
+ * position-stmt = position-keyword sep
+ * position-value-arg-str stmtend
+ * position-value-arg-str = < a string that matches the rule
+ * position-value-arg >
+ * position-value-arg = non-negative-integer-value
+ */
+ positionStatement : POSITION_KEYWORD position STMTEND;
+
+ /**
+ * status-stmt = status-keyword sep status-arg-str stmtend
+ * status-arg-str = < a string that matches the rule
+ * status-arg >
+ * status-arg = current-keyword /
+ * obsolete-keyword /
+ * deprecated-keyword
+ */
+ statusStatement : STATUS_KEYWORD status STMTEND;
+
+ /**
+ * config-stmt = config-keyword sep
+ * config-arg-str stmtend
+ * config-arg-str = < a string that matches the rule
+ * config-arg >
+ * config-arg = true-keyword / false-keyword
+ */
+ configStatement : CONFIG_KEYWORD config STMTEND;
+
+ /**
+ * mandatory-stmt = mandatory-keyword sep
+ * mandatory-arg-str stmtend
+ *
+ * mandatory-arg-str = < a string that matches the rule
+ * mandatory-arg >
+ *
+ * mandatory-arg = true-keyword / false-keyword
+ */
+ mandatoryStatement : MANDATORY_KEYWORD mandatory STMTEND;
+
+ /**
+ * presence-stmt = presence-keyword sep string stmtend
+ */
+ presenceStatement : PRESENCE_KEYWORD string STMTEND;
+
+ /**
+ * ordered-by-stmt = ordered-by-keyword sep
+ * ordered-by-arg-str stmtend
+ *
+ * ordered-by-arg-str = < a string that matches the rule
+ * ordered-by-arg >
+ *
+ * ordered-by-arg = user-keyword / system-keyword
+ */
+ orderedByStatement : ORDERED_BY_KEYWORD orderedBy STMTEND;
+
+ /**
+ * must-stmt = must-keyword sep string optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [error-message-stmt stmtsep]
+ * [error-app-tag-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ mustStatement : MUST_KEYWORD string (STMTEND | LEFT_CURLY_BRACE commonStatements RIGHT_CURLY_BRACE);
+
+ /**
+ * error-message-stmt = error-message-keyword sep string stmtend
+ */
+ errorMessageStatement : ERROR_MESSAGE_KEYWORD string STMTEND;
+
+ /**
+ * error-app-tag-stmt = error-app-tag-keyword sep string stmtend
+ */
+ errorAppTagStatement : ERROR_APP_TAG_KEYWORD string STMTEND;
+
+ /**
+ * min-elements-stmt = min-elements-keyword sep
+ * min-value-arg-str stmtend
+ * min-value-arg-str = < a string that matches the rule
+ * min-value-arg >
+ * min-value-arg = non-negative-integer-value
+ */
+ minElementsStatement : MIN_ELEMENTS_KEYWORD minValue STMTEND;
+
+ /**
+ * max-elements-stmt = max-elements-keyword sep
+ * max-value-arg-str stmtend
+ * max-value-arg-str = < a string that matches the rule
+ * max-value-arg >
+ * max-value-arg = unbounded-keyword /
+ * positive-integer-value
+ */
+ maxElementsStatement : MAX_ELEMENTS_KEYWORD maxValue STMTEND;
+
+ /**
+ * value-stmt = value-keyword sep integer-value stmtend
+ */
+ valueStatement : VALUE_KEYWORD value STMTEND;
+
+ /**
+ * grouping-stmt = grouping-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *((typedef-stmt /
+ * grouping-stmt) stmtsep)
+ * *(data-def-stmt stmtsep)
+ * "}")
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ groupingStatement : GROUPING_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE
+ (statusStatement | descriptionStatement | referenceStatement | typedefStatement | groupingStatement
+ | dataDefStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * container-stmt = container-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * *(must-stmt stmtsep)
+ * [presence-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *((typedef-stmt /
+ * grouping-stmt) stmtsep)
+ * *(data-def-stmt stmtsep)
+ * "}")
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ containerStatement : CONTAINER_KEYWORD identifier
+ (STMTEND | LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | mustStatement | presenceStatement | configStatement
+ | statusStatement | descriptionStatement | referenceStatement | typedefStatement | groupingStatement
+ | dataDefStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * leaf-stmt = leaf-keyword sep identifier-arg-str optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * type-stmt stmtsep
+ * [units-stmt stmtsep]
+ * *(must-stmt stmtsep)
+ * [default-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}"
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ leafStatement : LEAF_KEYWORD identifier LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | typeStatement | unitsStatement
+ | mustStatement | defaultStatement | configStatement | mandatoryStatement | statusStatement | descriptionStatement
+ | referenceStatement)* RIGHT_CURLY_BRACE;
+
+ /**
+ * leaf-list-stmt = leaf-list-keyword sep identifier-arg-str optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * type-stmt stmtsep
+ * [units-stmt stmtsep]
+ * *(must-stmt stmtsep)
+ * [config-stmt stmtsep]
+ * [min-elements-stmt stmtsep]
+ * [max-elements-stmt stmtsep]
+ * [ordered-by-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}"
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ leafListStatement : LEAF_LIST_KEYWORD identifier LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | typeStatement
+ | unitsStatement | mustStatement | configStatement | minElementsStatement | maxElementsStatement | orderedByStatement
+ | statusStatement | descriptionStatement | referenceStatement)* RIGHT_CURLY_BRACE;
+
+ /**
+ * list-stmt = list-keyword sep identifier-arg-str optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * *(must-stmt stmtsep)
+ * [key-stmt stmtsep]
+ * *(unique-stmt stmtsep)
+ * [config-stmt stmtsep]
+ * [min-elements-stmt stmtsep]
+ * [max-elements-stmt stmtsep]
+ * [ordered-by-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *((typedef-stmt /
+ * grouping-stmt) stmtsep)
+ * 1*(data-def-stmt stmtsep)
+ * "}"
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ listStatement : LIST_KEYWORD identifier LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | mustStatement | keyStatement
+ | uniqueStatement | configStatement | minElementsStatement | maxElementsStatement | orderedByStatement | statusStatement
+ | descriptionStatement | referenceStatement | typedefStatement | groupingStatement| dataDefStatement)* RIGHT_CURLY_BRACE;
+
+ /**
+ * key-stmt = key-keyword sep key-arg-str stmtend
+ */
+ keyStatement : KEY_KEYWORD key STMTEND;
+
+ /**
+ * unique-stmt = unique-keyword sep unique-arg-str stmtend
+ */
+ uniqueStatement: UNIQUE_KEYWORD unique STMTEND;
+
+ /**
+ * choice-stmt = choice-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * [default-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *((short-case-stmt / case-stmt) stmtsep)
+ * "}")
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ choiceStatement : CHOICE_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | defaultStatement
+ | configStatement | mandatoryStatement | statusStatement | descriptionStatement | referenceStatement | shortCaseStatement
+ | caseStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * short-case-stmt = container-stmt /
+ * leaf-stmt /
+ * leaf-list-stmt /
+ * list-stmt /
+ * anyxml-stmt
+ */
+ shortCaseStatement : containerStatement | leafStatement | leafListStatement | listStatement | anyxmlStatement;
+
+ /**
+ * case-stmt = case-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *(data-def-stmt stmtsep)
+ * "}")
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ caseStatement : CASE_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | statusStatement
+ | descriptionStatement | referenceStatement | dataDefStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * anyxml-stmt = anyxml-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * *(must-stmt stmtsep)
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ */
+ anyxmlStatement : ANYXML_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement
+ | mustStatement | configStatement | mandatoryStatement | statusStatement | descriptionStatement
+ | referenceStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * uses-stmt = uses-keyword sep identifier-ref-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *(refine-stmt stmtsep)
+ * *(uses-augment-stmt stmtsep)
+ * "}")
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ usesStatement : USES_KEYWORD string (STMTEND | LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | statusStatement
+ | descriptionStatement | referenceStatement | refineStatement | augmentStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * refine-stmt = refine-keyword sep refine-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * (refine-container-stmts /
+ * refine-leaf-stmts /
+ * refine-leaf-list-stmts /
+ * refine-list-stmts /
+ * refine-choice-stmts /
+ * refine-case-stmts /
+ * refine-anyxml-stmts)
+ * "}")
+ */
+ refineStatement : REFINE_KEYWORD refine (STMTEND | LEFT_CURLY_BRACE (refineContainerStatements
+ | refineLeafStatements | refineLeafListStatements | refineListStatements | refineChoiceStatements
+ | refineCaseStatements | refineAnyxmlStatements) RIGHT_CURLY_BRACE);
+
+ /**
+ * refine-container-stmts =
+ * ;; these stmts can appear in any order
+ * *(must-stmt stmtsep)
+ * [presence-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ refineContainerStatements : (mustStatement | presenceStatement | configStatement | descriptionStatement | referenceStatement)* ;
+
+ /**
+ * refine-leaf-stmts = ;; these stmts can appear in any order
+ * *(must-stmt stmtsep)
+ * [default-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ refineLeafStatements : (mustStatement | defaultStatement | configStatement | mandatoryStatement | descriptionStatement | referenceStatement)*;
+
+ /**
+ * refine-leaf-list-stmts =
+ * ;; these stmts can appear in any order
+ * *(must-stmt stmtsep)
+ * [config-stmt stmtsep]
+ * [min-elements-stmt stmtsep]
+ * [max-elements-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ refineLeafListStatements : (mustStatement | configStatement | minElementsStatement | maxElementsStatement | descriptionStatement
+ | referenceStatement)*;
+
+ /**
+ * refine-list-stmts = ;; these stmts can appear in any order
+ * *(must-stmt stmtsep)
+ * [config-stmt stmtsep]
+ * [min-elements-stmt stmtsep]
+ * [max-elements-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ refineListStatements : (mustStatement | configStatement | minElementsStatement | maxElementsStatement | descriptionStatement
+ | referenceStatement)*;
+
+ /**
+ * refine-choice-stmts = ;; these stmts can appear in any order
+ * [default-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ refineChoiceStatements : (defaultStatement | configStatement | mandatoryStatement | descriptionStatement | referenceStatement)*;
+
+ /**
+ * refine-case-stmts = ;; these stmts can appear in any order
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ *
+ */
+ refineCaseStatements : (descriptionStatement | referenceStatement)? | (referenceStatement | descriptionStatement)?;
+
+ /**
+ * refine-anyxml-stmts = ;; these stmts can appear in any order
+ * *(must-stmt stmtsep)
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ */
+ refineAnyxmlStatements : (mustStatement | configStatement | mandatoryStatement | descriptionStatement
+ | referenceStatement)*;
+
+ /**
+ * augment-stmt = augment-keyword sep augment-arg-str optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [when-stmt stmtsep]
+ * *(if-feature-stmt stmtsep)
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * 1*((data-def-stmt stmtsep) /
+ * (case-stmt stmtsep))
+ * "}"
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ augmentStatement : AUGMENT_KEYWORD augment LEFT_CURLY_BRACE (whenStatement | ifFeatureStatement | statusStatement
+ | descriptionStatement | referenceStatement | dataDefStatement | caseStatement)* RIGHT_CURLY_BRACE;
+
+ /**
+ * when-stmt = when-keyword sep string optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * "}")
+ *
+ */
+ whenStatement : WHEN_KEYWORD string (STMTEND | LEFT_CURLY_BRACE ((descriptionStatement? referenceStatement?)
+ | (referenceStatement? descriptionStatement?)) RIGHT_CURLY_BRACE);
+
+ /**
+ * rpc-stmt = rpc-keyword sep identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * *(if-feature-stmt stmtsep)
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *((typedef-stmt /
+ * grouping-stmt) stmtsep)
+ * [input-stmt stmtsep]
+ * [output-stmt stmtsep]
+ * "}")
+ */
+ rpcStatement : RPC_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE (ifFeatureStatement | statusStatement | descriptionStatement
+ | referenceStatement | typedefStatement | groupingStatement | inputStatement | outputStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * input-stmt = input-keyword optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * *((typedef-stmt /
+ * grouping-stmt) stmtsep)
+ * 1*(data-def-stmt stmtsep)
+ * "}"
+ */
+ inputStatement : INPUT_KEYWORD LEFT_CURLY_BRACE (typedefStatement | groupingStatement | dataDefStatement)* RIGHT_CURLY_BRACE;
+
+ /**
+ * output-stmt = output-keyword optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * *((typedef-stmt /
+ * grouping-stmt) stmtsep)
+ * 1*(data-def-stmt stmtsep)
+ * "}"
+ */
+ outputStatement : OUTPUT_KEYWORD LEFT_CURLY_BRACE (typedefStatement | groupingStatement | dataDefStatement)* RIGHT_CURLY_BRACE;
+
+ /**
+ * notification-stmt = notification-keyword sep
+ * identifier-arg-str optsep
+ * (";" /
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * *(if-feature-stmt stmtsep)
+ * [status-stmt stmtsep]
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * *((typedef-stmt /
+ * grouping-stmt) stmtsep)
+ * *(data-def-stmt stmtsep)
+ * "}")
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ notificationStatement : NOTIFICATION_KEYWORD identifier (STMTEND | LEFT_CURLY_BRACE (ifFeatureStatement
+ | statusStatement | descriptionStatement | referenceStatement | typedefStatement
+ | groupingStatement | dataDefStatement)* RIGHT_CURLY_BRACE);
+
+ /**
+ * deviation-stmt = deviation-keyword sep
+ * deviation-arg-str optsep
+ * "{" stmtsep
+ * ;; these stmts can appear in any order
+ * [description-stmt stmtsep]
+ * [reference-stmt stmtsep]
+ * (deviate-not-supported-stmt /
+ * 1*(deviate-add-stmt /
+ * deviate-replace-stmt /
+ * deviate-delete-stmt))
+ * "}"
+ * TODO : 0..1 occurance to be checked in listener
+ */
+ deviationStatement: DEVIATION_KEYWORD deviation LEFT_CURLY_BRACE (descriptionStatement | referenceStatement
+ | deviateNotSupportedStatement | deviateAddStatement | deviateReplaceStatement
+ | deviateDeleteStatement)* RIGHT_CURLY_BRACE;
+
+ /**
+ * deviate-not-supported-stmt =
+ * deviate-keyword sep
+ * not-supported-keyword optsep
+ * (";" /
+ * "{" stmtsep
+ * "}")
+ */
+ deviateNotSupportedStatement: DEVIATE_KEYWORD NOT_SUPPORTED_KEYWORD (STMTEND | LEFT_CURLY_BRACE RIGHT_CURLY_BRACE);
+
+ /**
+ * deviate-add-stmt = deviate-keyword sep add-keyword optsep
+ * (";" /
+ * "{" stmtsep
+ * [units-stmt stmtsep]
+ * *(must-stmt stmtsep)
+ * *(unique-stmt stmtsep)
+ * [default-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [min-elements-stmt stmtsep]
+ * [max-elements-stmt stmtsep]
+ * "}")
+ */
+ deviateAddStatement: DEVIATE_KEYWORD ADD_KEYWORD (STMTEND | (LEFT_CURLY_BRACE unitsStatement? mustStatement* uniqueStatement*
+ defaultStatement? configStatement? mandatoryStatement? minElementsStatement? maxElementsStatement?
+ RIGHT_CURLY_BRACE));
+
+ /**
+ * deviate-delete-stmt = deviate-keyword sep delete-keyword optsep
+ * (";" /
+ * "{" stmtsep
+ * [units-stmt stmtsep]
+ * *(must-stmt stmtsep)
+ * *(unique-stmt stmtsep)
+ * [default-stmt stmtsep]
+ * "}")
+ */
+ deviateDeleteStatement: DEVIATE_KEYWORD DELETE_KEYWORD (STMTEND
+ | (LEFT_CURLY_BRACE unitsStatement? mustStatement* uniqueStatement* defaultStatement? RIGHT_CURLY_BRACE));
+
+ /**
+ * deviate-replace-stmt = deviate-keyword sep replace-keyword optsep
+ * (";" /
+ * "{" stmtsep
+ * [type-stmt stmtsep]
+ * [units-stmt stmtsep]
+ * [default-stmt stmtsep]
+ * [config-stmt stmtsep]
+ * [mandatory-stmt stmtsep]
+ * [min-elements-stmt stmtsep]
+ * [max-elements-stmt stmtsep]
+ * "}")
+ */
+ deviateReplaceStatement: DEVIATE_KEYWORD REPLACE_KEYWORD (STMTEND | (LEFT_CURLY_BRACE typeStatement? unitsStatement?
+ defaultStatement? configStatement? mandatoryStatement? minElementsStatement?
+ maxElementsStatement? RIGHT_CURLY_BRACE));
+
+ /**
+ * compiler-annotation-stmt = prefix:compiler-annotation-keyword string
+ * "{"
+ * [app-data-structure-stmt stmtsep]
+ * [app-extended-stmt stmtsep]
+ * "}"
+ */
+ compilerAnnotationStatement : COMPILER_ANNOTATION string LEFT_CURLY_BRACE
+ compilerAnnotationBodyStatement RIGHT_CURLY_BRACE;
+
+ compilerAnnotationBodyStatement : appDataStructureStatement? appExtendedStatement? ;
+
+ /**
+ * app-data-structure-stmt = prefix:app-data-structure-keyword string
+ * (";" /
+ * "{"
+ * [data-structure-key-stmt stmtsep]
+ * "}")
+ */
+ appDataStructureStatement : APP_DATA_STRUCTURE appDataStructure (STMTEND | (LEFT_CURLY_BRACE
+ dataStructureKeyStatement? RIGHT_CURLY_BRACE));
+
+ /**
+ * data-structure-key-stmt = prefix:key-keyword string ";"
+ */
+ dataStructureKeyStatement : DATA_STRUCTURE_KEY string STMTEND;
+
+ /**
+ * app-extended-stmt = prefix:app-extended-name-keyword string ";"
+ */
+ appExtendedStatement : APP_EXTENDED extendedName STMTEND;
+
+ string : STRING (PLUS STRING)*
+ | IDENTIFIER
+ | INTEGER
+ | yangConstruct;
+
+ identifier : STRING (PLUS STRING)*
+ | IDENTIFIER
+ | yangConstruct;
+
+ dateArgumentString : DATE_ARG
+ | STRING (PLUS STRING)*;
+
+ version : string;
+
+ range : string;
+
+ length : string;
+
+ path : string;
+
+ position : string;
+
+ status : string;
+
+ config : string;
+
+ mandatory : string;
+
+ orderedBy : string;
+
+ minValue : string;
+
+ maxValue : string;
+
+ key : string;
+
+ unique : string;
+
+ refine : string;
+
+ requireInstance : string;
+
+ augment : string;
+
+ deviation : string;
+
+ value : string;
+
+ fraction : string;
+
+ appDataStructure : string;
+
+ extendedName : string;
+
+ yangConstruct : ANYXML_KEYWORD | ARGUMENT_KEYWORD | AUGMENT_KEYWORD | BASE_KEYWORD | BELONGS_TO_KEYWORD
+ | BIT_KEYWORD | CASE_KEYWORD | CHOICE_KEYWORD | CONFIG_KEYWORD | CONTACT_KEYWORD | CONTAINER_KEYWORD
+ | DEFAULT_KEYWORD | DESCRIPTION_KEYWORD | ENUM_KEYWORD | ERROR_APP_TAG_KEYWORD | ERROR_MESSAGE_KEYWORD
+ | EXTENSION_KEYWORD | DEVIATION_KEYWORD | DEVIATE_KEYWORD | FEATURE_KEYWORD
+ | FRACTION_DIGITS_KEYWORD | GROUPING_KEYWORD | IDENTITY_KEYWORD | IF_FEATURE_KEYWORD
+ | IMPORT_KEYWORD | INCLUDE_KEYWORD | INPUT_KEYWORD | KEY_KEYWORD | LEAF_KEYWORD | LEAF_LIST_KEYWORD
+ | LENGTH_KEYWORD | LIST_KEYWORD | MANDATORY_KEYWORD | MAX_ELEMENTS_KEYWORD | MIN_ELEMENTS_KEYWORD
+ | MODULE_KEYWORD | MUST_KEYWORD | NAMESPACE_KEYWORD | NOTIFICATION_KEYWORD | ORDERED_BY_KEYWORD
+ | ORGANIZATION_KEYWORD | OUTPUT_KEYWORD | PATH_KEYWORD | PATTERN_KEYWORD | POSITION_KEYWORD
+ | PREFIX_KEYWORD | PRESENCE_KEYWORD | RANGE_KEYWORD | REFERENCE_KEYWORD | REFINE_KEYWORD
+ | REQUIRE_INSTANCE_KEYWORD | REVISION_KEYWORD | REVISION_DATE_KEYWORD | RPC_KEYWORD
+ | STATUS_KEYWORD | SUBMODULE_KEYWORD | TYPE_KEYWORD | TYPEDEF_KEYWORD | UNIQUE_KEYWORD
+ | UNITS_KEYWORD | USES_KEYWORD | VALUE_KEYWORD | WHEN_KEYWORD | YANG_VERSION_KEYWORD
+ | YIN_ELEMENT_KEYWORD | ADD_KEYWORD | CURRENT_KEYWORD | DELETE_KEYWORD | DEPRECATED_KEYWORD
+ | FALSE_KEYWORD | MAX_KEYWORD | MIN_KEYWORD | NOT_SUPPORTED_KEYWORD | OBSOLETE_KEYWORD
+ | REPLACE_KEYWORD | SYSTEM_KEYWORD | TRUE_KEYWORD | UNBOUNDED_KEYWORD | USER_KEYWORD
+ | COMPILER_ANNOTATION_KEYWORD | APP_DATA_STRUCTURE_KEYWORD | DATA_STRUCTURE_KEYWORD
+ | APP_EXTENDED_KEYWORD;
diff --git a/parser/src/main/resources/YangLexer.g4 b/parser/src/main/resources/YangLexer.g4
new file mode 100644
index 0000000..51a9231
--- /dev/null
+++ b/parser/src/main/resources/YangLexer.g4
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * This is a YANG grammar for lexer based on which ANTLR will generate YANG lexer.
+ */
+
+lexer grammar YangLexer;
+
+ // Statements keywords
+ ANYXML_KEYWORD : 'anyxml';
+ ARGUMENT_KEYWORD : 'argument';
+ AUGMENT_KEYWORD : 'augment';
+ BASE_KEYWORD : 'base';
+ BELONGS_TO_KEYWORD : 'belongs-to';
+ BIT_KEYWORD : 'bit';
+ CASE_KEYWORD : 'case';
+ CHOICE_KEYWORD : 'choice';
+ CONFIG_KEYWORD : 'config';
+ CONTACT_KEYWORD : 'contact';
+ CONTAINER_KEYWORD : 'container';
+ DEFAULT_KEYWORD : 'default';
+ DESCRIPTION_KEYWORD : 'description';
+ ENUM_KEYWORD : 'enum';
+ ERROR_APP_TAG_KEYWORD : 'error-app-tag';
+ ERROR_MESSAGE_KEYWORD : 'error-message';
+ EXTENSION_KEYWORD : 'extension';
+ DEVIATION_KEYWORD : 'deviation';
+ DEVIATE_KEYWORD : 'deviate';
+ FEATURE_KEYWORD : 'feature';
+ FRACTION_DIGITS_KEYWORD : 'fraction-digits';
+ GROUPING_KEYWORD : 'grouping';
+ IDENTITY_KEYWORD : 'identity';
+ IF_FEATURE_KEYWORD : 'if-feature';
+ IMPORT_KEYWORD : 'import';
+ INCLUDE_KEYWORD : 'include';
+ INPUT_KEYWORD : 'input';
+ KEY_KEYWORD : 'key';
+ LEAF_KEYWORD : 'leaf';
+ LEAF_LIST_KEYWORD : 'leaf-list';
+ LENGTH_KEYWORD : 'length';
+ LIST_KEYWORD : 'list';
+ MANDATORY_KEYWORD : 'mandatory';
+ MAX_ELEMENTS_KEYWORD : 'max-elements';
+ MIN_ELEMENTS_KEYWORD : 'min-elements';
+ MODULE_KEYWORD : 'module';
+ MUST_KEYWORD : 'must';
+ NAMESPACE_KEYWORD : 'namespace';
+ NOTIFICATION_KEYWORD: 'notification';
+ ORDERED_BY_KEYWORD : 'ordered-by';
+ ORGANIZATION_KEYWORD: 'organization';
+ OUTPUT_KEYWORD : 'output';
+ PATH_KEYWORD : 'path';
+ PATTERN_KEYWORD : 'pattern';
+ POSITION_KEYWORD : 'position';
+ PREFIX_KEYWORD : 'prefix';
+ PRESENCE_KEYWORD : 'presence';
+ RANGE_KEYWORD : 'range';
+ REFERENCE_KEYWORD : 'reference';
+ REFINE_KEYWORD : 'refine';
+ REQUIRE_INSTANCE_KEYWORD : 'require-instance';
+ REVISION_KEYWORD : 'revision';
+ REVISION_DATE_KEYWORD : 'revision-date';
+ RPC_KEYWORD : 'rpc';
+ STATUS_KEYWORD : 'status';
+ SUBMODULE_KEYWORD : 'submodule';
+ TYPE_KEYWORD : 'type';
+ TYPEDEF_KEYWORD : 'typedef';
+ UNIQUE_KEYWORD : 'unique';
+ UNITS_KEYWORD : 'units';
+ USES_KEYWORD : 'uses';
+ VALUE_KEYWORD : 'value';
+ WHEN_KEYWORD : 'when';
+ YANG_VERSION_KEYWORD: 'yang-version';
+ YIN_ELEMENT_KEYWORD : 'yin-element';
+ ADD_KEYWORD : 'add';
+ CURRENT_KEYWORD : 'current';
+ DELETE_KEYWORD : 'delete';
+ DEPRECATED_KEYWORD : 'deprecated';
+ FALSE_KEYWORD : 'false';
+ MAX_KEYWORD : 'max';
+ MIN_KEYWORD : 'min';
+ NOT_SUPPORTED_KEYWORD : 'not-supported';
+ OBSOLETE_KEYWORD : 'obsolete';
+ REPLACE_KEYWORD : 'replace';
+ SYSTEM_KEYWORD : 'system';
+ TRUE_KEYWORD : 'true';
+ UNBOUNDED_KEYWORD : 'unbounded';
+ USER_KEYWORD : 'user';
+ COMPILER_ANNOTATION_KEYWORD : 'compiler-annotation';
+ COMPILER_ANNOTATION : IDENTIFIER COLON COMPILER_ANNOTATION_KEYWORD;
+ APP_DATA_STRUCTURE_KEYWORD : 'app-data-structure';
+ APP_DATA_STRUCTURE : IDENTIFIER COLON APP_DATA_STRUCTURE_KEYWORD;
+ DATA_STRUCTURE_KEYWORD : 'data-structure';
+ DATA_STRUCTURE : IDENTIFIER COLON DATA_STRUCTURE_KEYWORD;
+ DATA_STRUCTURE_KEY : IDENTIFIER COLON KEY_KEYWORD;
+ APP_EXTENDED_KEYWORD : 'app-extended-name';
+ APP_EXTENDED : IDENTIFIER COLON APP_EXTENDED_KEYWORD;
+
+ // Lexer tokens to be skipped
+ COMMENT
+ : '/*' .*? '*/' -> channel(HIDDEN)
+ ;
+ WS : [ \r\t\u000C\n]+ -> channel(HIDDEN)
+ ;
+ LINE_COMMENT
+ : '//' ~[\r\n]* '\r'? '\n' -> channel(HIDDEN)
+ ;
+
+ // Additional rules
+ INTEGER : DIGIT+;
+ DATE_ARG : DIGIT DIGIT DIGIT DIGIT '-' DIGIT DIGIT '-' DIGIT DIGIT;
+ LEFT_CURLY_BRACE : '{';
+ RIGHT_CURLY_BRACE : '}';
+ IDENTIFIER : (ALPHA | '_')
+ (ALPHA | DIGIT | '_' | '-' | '.')*;
+ STMTEND : ';';
+ DQUOTE : '"';
+ COLON : ':';
+ PLUS : '+';
+ MINUS: '-';
+
+ STRING : ((~( '\r' | '\n' | '\t' | ' ' | ';' | '{' | '"' | '+' | '\'')~( '\r' | '\n' | '\t' | ' ' | ';' | '{' | '+')* ) | SUB_STRING );
+
+ //Fragment rules
+ fragment SUB_STRING : ('"' (ESC | ~["])*'"') | ('\'' (ESC | ~['])*'\'') ;
+ fragment ESC : '\\' (["\\/bfnrt] | UNICODE) ;
+ fragment UNICODE : 'u' HEX HEX HEX HEX ;
+ fragment HEX : [0-9a-fA-F] ;
+ fragment ALPHA : [A-Za-z];
+ fragment DIGIT : [0-9];
+ fragment URN : [u][r][n];
+ fragment HTTP : [h][t][t][p];
\ No newline at end of file