Scan for non-decimal in n_digits2

src/parser3.h

@@ -8,7 +8,6 @@
 #include <cstring>
 #include <initializer_list>
 #include <tuple>
-#include <utility>
 
 #ifdef __x86_64__
 #include <immintrin.h>
@@ -836,23 +835,17 @@ inline PRESERVE_NONE WeaselJsonStatus n_digits2(Parser3 *self) {
     self->pop();
     MUSTTAIL return Parser3::keepGoing(self);
   }
-  switch (*self->buf) {
-  case '0':
-  case '1':
-  case '2':
-  case '3':
-  case '4':
-  case '5':
-  case '6':
-  case '7':
-  case '8':
-  case '9':
+
+  // Advance self->buf to the first non-decimal character
+  while (self->buf != self->bufEnd && '0' <= *self->buf && *self->buf <= '9') {
     ++self->buf;
-    MUSTTAIL return Parser3::keepGoing(self);
-  default:
-    self->pop();
-    MUSTTAIL return Parser3::keepGoing(self);
   }
+  if (self->buf == self->bufEnd) {
+    self->flushNumber(false);
+    return WeaselJson_AGAIN;
+  }
+  self->pop();
+  MUSTTAIL return Parser3::keepGoing(self);
 }
 
 inline PRESERVE_NONE WeaselJsonStatus n_fraction(Parser3 *self) {