Merge pull request #133 from benjaminBrownlee/preproc-define-fix

fix: allow preproc define without value to preceed a line with whitespace

grammar.js

@@ -127,7 +127,7 @@ module.exports = grammar({
     ...preprocIf('_in_field_declaration_list', $ => $._field_declaration_list_item),
 
     preproc_directive: _ => /#[ \t]*[a-zA-Z]\w*/,
-    preproc_arg: _ => token(prec(-1, repeat1(/.|\\\r?\n/))),
+    preproc_arg: _ => token(prec(-1, /\S(.|\\\r?\n)*/)),
 
     _preproc_expression: $ => choice(
       $.identifier,

src/grammar.json

@@ -792,11 +792,8 @@
         "type": "PREC",
         "value": -1,
         "content": {
-          "type": "REPEAT1",
-          "content": {
-            "type": "PATTERN",
-            "value": ".|\\\\\\r?\\n"
-          }
+          "type": "PATTERN",
+          "value": "\\S(.|\\\\\\r?\\n)*"
         }
       }
     },

test/corpus/preprocessor.txt

@@ -23,7 +23,7 @@ Object-like macro definitions
 ============================================
 
 #define ONE
-#define TWO int a = b;
+    #define TWO int a = b;
 #define THREE \
   c == d ? \
   e : \