feat: add SPARQL* support

Author: blake-regalia

src/color-schemes/macaron-dark.js

@@ -93,6 +93,12 @@ module.exports = {
 			background: 'hsla(280, 70%, 10%, 0.2)',
 		},
 
+		// nested reified statement
+		{
+			scope: 'meta.triple.reified-nested',
+			background: 'hsla(280, 70%, 10%, 0.4)',
+		},
+
 
 		// shared regex scopes
 		...a_regex_scopes,

src/color-schemes/macaron-light.js

@@ -89,6 +89,14 @@ module.exports = {
 			foreground_adjust: 'saturation(55%)',
 		},
 
+		// nested reified statement
+		{
+			scope: 'meta.triple.reified-nested',
+			background: 'hsla(140, 80%, 70%, 0.4)',
+			foreground_adjust: 'saturation(55%)',
+		},
+
+
 		// shared regex scopes
 		...a_regex_scopes,
 	],

src/syntax/sparql.syntax-source

@@ -696,7 +696,7 @@ contexts:
 
   bind_AFTER_BIND:
     - open.paren: section.bind
-      set: [bind_AFTER_EXPRESSION, expression]
+      set: [bind_AFTER_EXPRESSION, expressionOrEmbTP]
 
   bind_AFTER_EXPRESSION:
     - word: as
@@ -850,11 +850,48 @@ contexts:
       set: constructTriples_OPTIONAL
     - bail
 
+  ###################################
+  # < SPARQL* >
+  ###################################
+  embeddedTriplePattern:
+    - match: '<<'
+      scope: punctuation.definition.triple-x.begin.SYNTAX meta.triple.reified.SYNTAX
+      mask: meta.triple.reified.SYNTAX
+      set: [embeddedTriplePattern_TERMINATE, embeddedTriplePattern_THING, verb, embeddedTriplePattern_THING]
+
+  embeddedTriplePatternNested:
+    - goto: embeddedTriplePattern
+      mask: meta.triple.reified-nested.SYNTAX
+
+  embeddedTriplePattern_THING:
+    - switch:
+      - embeddedTriplePatternNested
+      - varOrTerm
+
+  embeddedTriplePattern_TERMINATE:
+    - match: '>>'
+      scope: punctuation.definition.triple-x.end.SYNTAX meta.triple.reified.SYNTAX
+      pop: true
+
+  varOrTermOrEmbTP:
+    - switch:
+      - embeddedTriplePattern
+    - include: varOrTerm
+
+  expressionOrEmbTP:
+    - switch:
+      - embeddedTriplePattern
+    - include: expression
+
+  ###################################
+  # </ SPARQL* >
+  ###################################
+
   triplesSameSubject:
     - switch:
         - hollowAnonymousBlankNode: [propertyListNotEmpty, hollowAnonymousBlankNode]
         - anonymousBlankNode: anonymousBlankNode_LATENT_PL_PLNE
-        - varOrTerm: [propertyListNotEmpty_REQUIRED, varOrTerm]
+        - varOrTermOrEmbTP: [propertyListNotEmpty_REQUIRED, varOrTermOrEmbTP]
         - triplesNode: [propertyList, triplesNode]
 
   anonymousBlankNode_LATENT:
@@ -934,7 +971,7 @@ contexts:
     - switch:
         - hollowAnonymousBlankNode: [propertyListPathNotEmpty, hollowAnonymousBlankNode]
         - anonymousBlankNode: anonymousBlankNode_LATENT_PLP_PLPNE
-        - varOrTerm: [propertyListPathNotEmpty, varOrTerm]
+        - varOrTermOrEmbTP: [propertyListPathNotEmpty, varOrTermOrEmbTP]
         - triplesNode: [propertyListPath, triplesNodePath]
 
   anonymousBlankNode_LATENT_PLP_PLPNE:
@@ -1105,14 +1142,14 @@ contexts:
     - switch:
         - hollowAnonymousBlankNode
         - anonymousBlankNode: anonymousBlankNode_LATENT
-        - varOrTerm
+        - varOrTermOrEmbTP
         - triplesNode
 
   graphNodePath:
     - switch:
         - hollowAnonymousBlankNode
         - anonymousBlankNode: anonymousBlankNodePath_LATENT
-        - varOrTerm
+        - varOrTermOrEmbTP
         - triplesNodePath
 
   varOrTerm:

src/syntax/terse.syntax-source

@@ -130,6 +130,7 @@ contexts:
     - switch:
         - collection
         - labeledBlankNode
+        - tripleX
         - namedNode
       mask: meta.term.role.object.SYNTAX
     - goto: literal
@@ -138,7 +139,9 @@ contexts:
   literal:
     - switch:
         - stringLiteral: rdfLiteral
-    - words: ['true', 'false']
+    - words:
+      - 'true'
+      - 'false'
       scope: constant.language.boolean.WORD.SYNTAX
       pop: true
     - include: numericLiteral
@@ -347,9 +350,13 @@ contexts:
       mask: meta.triple.reified.SYNTAX
       set: [tripleX_TERMINATE, tripleX_AFTER_BEGIN]
 
+  tripleXNested:
+    - goto: tripleX
+      mask: meta.triple.reified-nested.SYNTAX
+
   tripleX_AFTER_BEGIN:
     - switch:
-      - tripleX: [predicateObjectListX^, tripleX]
+      - tripleX: [predicateObjectListX^, tripleXNested]
       - hollowAnonymousBlankNode: [predicateObjectListX^, hollowAnonymousBlankNode]
       - anonymousBlankNode: [predicateObjectListX?, blankNodePropertyList]
       - collection: [predicateObjectListX^, collection]
@@ -363,7 +370,7 @@ contexts:
 
   objectX:
     - switch:
-      - tripleX
+      - tripleXNested
     - goto: object
 
   tripleX_TERMINATE: