diff --git a/cpp/generate.rb b/cpp/generate.rb
index 65958753..5263c2fb 100644
--- a/cpp/generate.rb
+++ b/cpp/generate.rb
@@ -209,14 +209,16 @@ def generateBlockFinder( name:"", tag_as:"", start_pattern:nil, needs_semicolon:
             :probably_a_parameter,
             :attributes_context,
             :comments_context,
-            :string_context,
-            :string_context_c,
             :storage_types,
-            :operators,
             :vararg_ellipses,
             :function_pointer,
             :comma,
-            :string
+            # the following are a temp workaround for defaulted arguments
+            # e.g. aFunc(int a = 10 + 10)
+            :language_constants,
+            :number_literal,
+            :string_context,
+            :operators,
         ]
     # eventually this context will be more exclusive (can't have class definitons inside of an evaluation)
     # but for now it just includes everything
@@ -823,7 +825,10 @@ def generateBlockFinder( name:"", tag_as:"", start_pattern:nil, needs_semicolon:
                     tag_as: "punctuation.section.parameters.end.bracket.round"
                     ),
                 includes: [
-                    :function_parameter_context
+                    :function_parameter_context,
+                    # TODO: the function_call_context is included here as workaround for function-initializations like issue #198
+                    # e.g. std::string ("hello");
+                    :function_call_context,
                 ]
             )
         ],
@@ -1004,7 +1009,7 @@ def generateBlockFinder( name:"", tag_as:"", start_pattern:nil, needs_semicolon:
                 tag_as: "punctuation.section.parameters.end.bracket.round.function.pointer"
             ).then(after_declaration),
         includes: [
-            :function_parameter_context
+            :function_parameter_context,
         ]
     )
 #
@@ -3236,6 +3241,7 @@ def generateBlockFinder( name:"", tag_as:"", start_pattern:nil, needs_semicolon:
             :attributes_context,
             :comments_context,
             :operators,
+            :string_context,
             :storage_types,
             :method_access,
             :member_access,
diff --git a/syntaxes/cpp.tmLanguage.json b/syntaxes/cpp.tmLanguage.json
index 481c1682..7f594bd0 100644
--- a/syntaxes/cpp.tmLanguage.json
+++ b/syntaxes/cpp.tmLanguage.json
@@ -336,28 +336,28 @@
           "include": "#comments_context"
         },
         {
-          "include": "#string_context"
+          "include": "#storage_types"
         },
         {
-          "include": "#string_context_c"
+          "include": "#vararg_ellipses"
         },
         {
-          "include": "#storage_types"
+          "include": "#function_pointer"
         },
         {
-          "include": "#operators"
+          "include": "#comma"
         },
         {
-          "include": "#vararg_ellipses"
+          "include": "#language_constants"
         },
         {
-          "include": "#function_pointer"
+          "include": "#number_literal"
         },
         {
-          "include": "#comma"
+          "include": "#string_context"
         },
         {
-          "include": "#string"
+          "include": "#operators"
         }
       ]
     },
@@ -2078,6 +2078,9 @@
               "patterns": [
                 {
                   "include": "#function_parameter_context"
+                },
+                {
+                  "include": "#function_call_context"
                 }
               ]
             }
@@ -5651,6 +5654,9 @@
         {
           "include": "#operators"
         },
+        {
+          "include": "#string_context"
+        },
         {
           "include": "#storage_types"
         },
diff --git a/syntaxes/cpp.tmLanguage.yaml b/syntaxes/cpp.tmLanguage.yaml
index c62520b1..71315dca 100644
--- a/syntaxes/cpp.tmLanguage.yaml
+++ b/syntaxes/cpp.tmLanguage.yaml
@@ -155,14 +155,14 @@
     - include: "#probably_a_parameter"
     - include: "#attributes_context"
     - include: "#comments_context"
-    - include: "#string_context"
-    - include: "#string_context_c"
     - include: "#storage_types"
-    - include: "#operators"
     - include: "#vararg_ellipses"
     - include: "#function_pointer"
     - include: "#comma"
-    - include: "#string"
+    - include: "#language_constants"
+    - include: "#number_literal"
+    - include: "#string_context"
+    - include: "#operators"
   evaluation_context:
     patterns:
     - include: "$base"
@@ -1096,6 +1096,7 @@
             name: punctuation.section.parameters.end.bracket.round.cpp
         patterns:
         - include: "#function_parameter_context"
+        - include: "#function_call_context"
     - name: meta.body.function.definition.cpp
       begin: "(?<=\\{)"
       end: "(\\})"
@@ -3055,6 +3056,7 @@
     - include: "#attributes_context"
     - include: "#comments_context"
     - include: "#operators"
+    - include: "#string_context"
     - include: "#storage_types"
     - include: "#method_access"
     - include: "#member_access"
diff --git a/test/fixtures/issues/198.cpp b/test/fixtures/issues/198.cpp
new file mode 100644
index 00000000..ee960d19
--- /dev/null
+++ b/test/fixtures/issues/198.cpp
@@ -0,0 +1,5 @@
+#include <string>
+
+std::string s = "correct";
+std::string s("incorrect");
+std::string s("?"); // incorrect
\ No newline at end of file
diff --git a/test/specs/issues/002.cpp.yaml b/test/specs/issues/002.cpp.yaml
index 22e4b0a5..19702fe9 100644
--- a/test/specs/issues/002.cpp.yaml
+++ b/test/specs/issues/002.cpp.yaml
@@ -69,8 +69,7 @@
 - source: '::'
   scopes:
     - punctuation.separator.namespace.access
-    - >-
-      punctuation.separator.scope-resolution.function.definition.operator-overload
+    - punctuation.separator.scope-resolution.function.definition.operator-overload
 - source: string &
   scopesEnd:
     - entity.name.operator.overloadee
diff --git a/test/specs/issues/055.cpp.yaml b/test/specs/issues/055.cpp.yaml
index 51a6cd4d..fa9f6680 100644
--- a/test/specs/issues/055.cpp.yaml
+++ b/test/specs/issues/055.cpp.yaml
@@ -49,20 +49,27 @@
 - source: (
   scopes:
     - punctuation.section.parameters.begin.bracket.round
-- source: 'enum foo::bar::baz '
+- source: 'enum'
   scopesBegin:
     - meta.function.definition.parameters
-- source: quix
+    - meta.block.enum
+    - meta.head.enum
   scopes:
-    - variable.parameter
-  scopesEnd:
-    - meta.function.definition.parameters
-- source: )
+    - storage.type.enum
+- source: foo
+  scopes:
+    - entity.name.type.enum
+- source: '::'
+- source: bar
   scopes:
-    - punctuation.section.parameters.end.bracket.round
+    - entity.name.scope-resolution
+- source: '::'
+  scopes:
+    - punctuation.separator.namespace.access
+    - punctuation.separator.scope-resolution
+- source: 'baz quix)'
   scopesEnd:
-    - meta.function.definition
-    - meta.head.function.definition
+    - meta.head.enum
 - source: ;
   scopes:
     - punctuation.terminator.statement
diff --git a/test/specs/issues/158.cpp.yaml b/test/specs/issues/158.cpp.yaml
index bee53d66..a1d44f56 100644
--- a/test/specs/issues/158.cpp.yaml
+++ b/test/specs/issues/158.cpp.yaml
@@ -71,7 +71,9 @@
 - source: =
   scopes:
     - keyword.operator.assignment
-- source: ' false'
+- source: 'false'
+  scopes:
+    - constant.language.false
   scopesEnd:
     - meta.function.definition.parameters
 - source: )
diff --git a/test/specs/issues/198.cpp.yaml b/test/specs/issues/198.cpp.yaml
new file mode 100644
index 00000000..fcef9621
--- /dev/null
+++ b/test/specs/issues/198.cpp.yaml
@@ -0,0 +1,142 @@
+- source: '#'
+  scopesBegin:
+    - meta.preprocessor.include
+    - keyword.control.directive.include
+  scopes:
+    - punctuation.definition.directive
+- source: include
+  scopesEnd:
+    - keyword.control.directive.include
+- source: <
+  scopesBegin:
+    - string.quoted.other.lt-gt.include
+  scopes:
+    - punctuation.definition.string.begin
+- source: string
+- source: '>'
+  scopes:
+    - punctuation.definition.string.end
+  scopesEnd:
+    - meta.preprocessor.include
+    - string.quoted.other.lt-gt.include
+- source: std
+  scopes:
+    - entity.name.scope-resolution
+- source: '::'
+  scopes:
+    - punctuation.separator.namespace.access
+    - punctuation.separator.scope-resolution
+- source: 'string s '
+- source: =
+  scopes:
+    - keyword.operator.assignment
+- source: '"'
+  scopesBegin:
+    - string.quoted.double
+  scopes:
+    - punctuation.definition.string.begin
+- source: correct
+- source: '"'
+  scopes:
+    - punctuation.definition.string.end
+  scopesEnd:
+    - string.quoted.double
+- source: ;
+  scopes:
+    - punctuation.terminator.statement
+- source: std
+  scopesBegin:
+    - meta.function.definition
+    - meta.qualified_type
+  scopes:
+    - entity.name.scope-resolution
+- source: '::'
+  scopes:
+    - punctuation.separator.namespace.access
+    - punctuation.separator.scope-resolution
+- source: string
+  scopes:
+    - entity.name.type
+  scopesEnd:
+    - meta.qualified_type
+- source: s
+  scopesBegin:
+    - meta.head.function.definition
+  scopes:
+    - entity.name.function.definition
+- source: (
+  scopes:
+    - punctuation.section.parameters.begin.bracket.round
+- source: '"'
+  scopesBegin:
+    - meta.function.definition.parameters
+    - string.quoted.double
+  scopes:
+    - punctuation.definition.string.begin
+- source: incorrect
+- source: '"'
+  scopes:
+    - punctuation.definition.string.end
+  scopesEnd:
+    - meta.function.definition.parameters
+    - string.quoted.double
+- source: )
+  scopes:
+    - punctuation.section.parameters.end.bracket.round
+  scopesEnd:
+    - meta.function.definition
+    - meta.head.function.definition
+- source: ;
+  scopes:
+    - punctuation.terminator.statement
+- source: std
+  scopesBegin:
+    - meta.function.definition
+    - meta.qualified_type
+  scopes:
+    - entity.name.scope-resolution
+- source: '::'
+  scopes:
+    - punctuation.separator.namespace.access
+    - punctuation.separator.scope-resolution
+- source: string
+  scopes:
+    - entity.name.type
+  scopesEnd:
+    - meta.qualified_type
+- source: s
+  scopesBegin:
+    - meta.head.function.definition
+  scopes:
+    - entity.name.function.definition
+- source: (
+  scopes:
+    - punctuation.section.parameters.begin.bracket.round
+- source: '"'
+  scopesBegin:
+    - meta.function.definition.parameters
+    - string.quoted.double
+  scopes:
+    - punctuation.definition.string.begin
+- source: '?'
+- source: '"'
+  scopes:
+    - punctuation.definition.string.end
+  scopesEnd:
+    - meta.function.definition.parameters
+    - string.quoted.double
+- source: )
+  scopes:
+    - punctuation.section.parameters.end.bracket.round
+  scopesEnd:
+    - meta.function.definition
+    - meta.head.function.definition
+- source: ;
+  scopes:
+    - punctuation.terminator.statement
+- source: //
+  scopesBegin:
+    - comment.line.double-slash
+  scopes:
+    - punctuation.definition.comment
+- source: ' incorrect'
diff --git a/test/specs/test.cpp.yaml b/test/specs/test.cpp.yaml
index e80c45bd..aa83242d 100644
--- a/test/specs/test.cpp.yaml
+++ b/test/specs/test.cpp.yaml
@@ -45,7 +45,7 @@
 - source: ' a comment /* no nest */'
   scopesEnd:
     - comment.line.double-slash
-- source: /*
+- source: '/*'
   scopesBegin:
     - comment.block
   scopes:
@@ -54,3 +54,5 @@
 - source: '*/'
   scopes:
     - punctuation.definition.comment.end
+  scopesEnd:
+    - comment.block