Support for Jetbrains plugin special marks

Supported markers:

- <caret>
- <error>
- <fold>

Author: kshchepanovskyi

build.gradle

@@ -32,7 +32,7 @@ dependencies {
         exclude group: 'com.jetbrains'
     }
     compile 'com.google.guava:guava:21.0'
-    compile 'io.protostuff:protostuff-parser:2.1.11'
+    compile 'io.protostuff:protostuff-parser:2.1.12'
 }
 
 apply plugin: 'idea'

src/main/java/io/protostuff/jetbrains/plugin/ProtoParserDefinition.java

@@ -3,6 +3,7 @@
 import static io.protostuff.compiler.parser.ProtoLexer.COMMENT;
 import static io.protostuff.compiler.parser.ProtoLexer.LINE_COMMENT;
 import static io.protostuff.compiler.parser.ProtoLexer.NL;
+import static io.protostuff.compiler.parser.ProtoLexer.PLUGIN_DEV_MARKER;
 import static io.protostuff.compiler.parser.ProtoLexer.STRING_VALUE;
 import static io.protostuff.compiler.parser.ProtoLexer.WS;
 import static io.protostuff.compiler.parser.ProtoParser.RULE_customFieldReference;
@@ -199,7 +200,8 @@ public class ProtoParserDefinition implements ParserDefinition {
     );
     public static final TokenSet COMMENT_TOKEN_SET = ELEMENT_FACTORY.createTokenSet(
             ProtoLexer.COMMENT,
-            ProtoLexer.LINE_COMMENT
+            ProtoLexer.LINE_COMMENT,
+            ProtoLexer.PLUGIN_DEV_MARKER
     );
     public static final TokenSet LITERAL_TOKEN_SET = ELEMENT_FACTORY.createTokenSet(
             ProtoLexer.STRING_VALUE,
@@ -267,7 +269,7 @@ public class ProtoParserDefinition implements ParserDefinition {
     public static final IElementType R_FIELD_NAME = RULE_TYPES.get(RULE_fieldName);
     public static final IElementType R_TAG = RULE_TYPES.get(RULE_tag);
     private static final IFileElementType FILE = new IFileElementType(ProtoLanguage.INSTANCE);
-    private static final TokenSet COMMENTS = ELEMENT_FACTORY.createTokenSet(COMMENT, LINE_COMMENT);
+    private static final TokenSet COMMENTS = ELEMENT_FACTORY.createTokenSet(COMMENT, LINE_COMMENT, PLUGIN_DEV_MARKER);
     private static final TokenSet STRING = ELEMENT_FACTORY.createTokenSet(STRING_VALUE);
     private final Map<Integer, Function<ASTNode, AntlrPsiNode>> elementFactories = new HashMap<>();
 

src/main/java/io/protostuff/jetbrains/plugin/ProtoSyntaxHighlighter.java

@@ -47,6 +47,8 @@ public class ProtoSyntaxHighlighter extends SyntaxHighlighterBase {
             createTextAttributesKey("PROTO_BLOCK_COMMENT", DefaultLanguageHighlighterColors.BLOCK_COMMENT);
     static final TextAttributesKey ENUM_CONSTANT =
             createTextAttributesKey("PROTO_ENUM_CONSTANT", DefaultLanguageHighlighterColors.CONSTANT);
+    static final TextAttributesKey METADATA =
+            createTextAttributesKey("PROTO_METADATA", DefaultLanguageHighlighterColors.METADATA);
 
     private static final TextAttributesKey[] EMPTY_KEYS = new TextAttributesKey[0];
 
@@ -80,6 +82,9 @@ public TextAttributesKey[] getTokenHighlights(IElementType tokenType) {
             case ProtoLexer.LINE_COMMENT:
                 attrKey = LINE_COMMENT;
                 break;
+            case ProtoLexer.PLUGIN_DEV_MARKER:
+                attrKey = METADATA;
+                break;
             default:
                 return EMPTY_KEYS;
         }