test: add test for caseInsensitive + formatting

Author: pdubroy

packages/ohm-js/src/UnicodeCategories.js

@@ -9,37 +9,37 @@
     | awk '{printf "\x27%s\x27,\n",$1}'
  */
 export const UnicodeCategories = Object.fromEntries(
-  [
-    'Cc',
-    'Cf',
-    'Cn',
-    'Co',
-    'Cs',
-    'Ll',
-    'Lm',
-    'Lo',
-    'Lt',
-    'Lu',
-    'Mc',
-    'Me',
-    'Mn',
-    'Nd',
-    'Nl',
-    'No',
-    'Pc',
-    'Pd',
-    'Pe',
-    'Pf',
-    'Pi',
-    'Po',
-    'Ps',
-    'Sc',
-    'Sk',
-    'Sm',
-    'So',
-    'Zl',
-    'Zp',
-    'Zs'
-  ].map(alias => [alias, new RegExp(String.raw`\p{${alias}}`, 'u')])
+    [
+      'Cc',
+      'Cf',
+      'Cn',
+      'Co',
+      'Cs',
+      'Ll',
+      'Lm',
+      'Lo',
+      'Lt',
+      'Lu',
+      'Mc',
+      'Me',
+      'Mn',
+      'Nd',
+      'Nl',
+      'No',
+      'Pc',
+      'Pd',
+      'Pe',
+      'Pf',
+      'Pi',
+      'Po',
+      'Ps',
+      'Sc',
+      'Sk',
+      'Sm',
+      'So',
+      'Zl',
+      'Zp',
+      'Zs',
+    ].map(alias => [alias, new RegExp(String.raw`\p{${alias}}`, 'u')]),
 );
 UnicodeCategories['Ltmo'] = /\p{Lt}|\p{Lm}|\p{Lo}/u;

packages/ohm-js/test/test-built-in-rules.js

@@ -72,6 +72,13 @@ test('case-insensitive matching', t => {
       {message: /Incorrect argument type/},
       'throws when argument is a Range',
   );
+
+  const g2 = ohm.grammar(`
+    G2 {
+      start = caseInsensitive<"!">
+      caseInsensitive<x> := x
+    }`);
+  t.is(g2.match('!').succeeded(), true, 'caseInsensitive can be overridden');
 });
 
 test('applySyntactic - basics', t => {