This should improve string performance in ondemand by making the string processing runtime dispatched.

src/westmere/dom_parser_implementation.cpp

@@ -110,6 +110,7 @@ simdjson_really_inline simd8<bool> must_be_2_3_continuation(const simd8<uint8_t>
 //
 // Stage 2
 //
+#include "generic/stage2/stringparsing.h"
 #include "generic/stage2/tape_builder.h"
 
 //
@@ -151,6 +152,10 @@ simdjson_warn_unused error_code dom_parser_implementation::stage2_next(dom::docu
   return stage2::tape_builder::parse_document<true>(*this, _doc);
 }
 
+simdjson_warn_unused uint8_t *implementation::parse_string(const uint8_t *src, uint8_t *dst) const noexcept {
+  return westmere::stringparsing::parse_string(src, dst);
+}
+
 simdjson_warn_unused error_code dom_parser_implementation::parse(const uint8_t *_buf, size_t _len, dom::document &_doc) noexcept {
   auto error = stage1(_buf, _len, stage1_mode::regular);
   if (error) { return error; }