Add non-reserved keywords for some GPML keywords

Author: jpschorr

partiql-parser/src/parse/partiql.lalrpop

@@ -1312,6 +1312,8 @@ FunctionCall: CallSite = {
 #[inline]
 FunctionName: ast::SymbolPrimitive = {
     <SymbolPrimitive>,
+    <lo:@L> <ident:FnNonReservedKeyword> <hi:@R> =>
+        ast::SymbolPrimitive { value: ident.to_owned(), case: ast::CaseSensitivity::CaseInsensitive }
 }
 
 #[inline]
@@ -1437,6 +1439,10 @@ VarRef: ast::AstNode<ast::VarRef> = {
             name: ast::SymbolPrimitive { value: ident.to_owned(), case: ast::CaseSensitivity::CaseSensitive },
             qualifier: ast::ScopeQualifier::Unqualified
         },lo..hi),
+    <lo:@L> <ident:VarNonReservedKeyword> <hi:@R> => state.node(ast::VarRef {
+            name: ast::SymbolPrimitive { value: ident.to_owned(), case: ast::CaseSensitivity::CaseInsensitive },
+            qualifier: ast::ScopeQualifier::Unqualified
+        },lo..hi),
 }
 
 ExcludePath: ast::AstNode<ast::ExcludePath> = {
@@ -1668,6 +1674,25 @@ ByIdent: ast::SymbolPrimitive = {
 //                                                                                //
 // ------------------------------------------------------------------------------ //
 
+#[inline]
+VarNonReservedKeyword: &'static str = {
+    <NonReservedKeyword>
+}
+
+#[inline]
+FnNonReservedKeyword: &'static str = {
+    <NonReservedKeyword>
+}
+
+#[inline]
+NonReservedKeyword: &'static str = {
+    "ACYCLIC" => "ACYCLIC",
+    "ANY" => "ANY",
+    "SIMPLE" => "SIMPLE",
+    "SHORTEST" => "SHORTEST",
+    "TRAIL" => "TRAIL",
+}
+
 // The lexer is external; See [`lexer.rs`] for its definition.
 //
 // See also http://lalrpop.github.io/lalrpop/lexer_tutorial/002_writing_custom_lexer.html