diff --git a/deps/simdutf/simdutf.cpp b/deps/simdutf/simdutf.cpp
index 712bf0cf85833a..eb3c53ba069ede 100644
--- a/deps/simdutf/simdutf.cpp
+++ b/deps/simdutf/simdutf.cpp
@@ -1,8 +1,8 @@
-/* auto-generated on 2023-06-05 08:58:28 -0400. Do not edit! */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf.cpp
+/* auto-generated on 2023-08-11 13:30:54 -0400. Do not edit! */
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf.cpp
 /* begin file src/simdutf.cpp */
 #include "simdutf.h"
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=implementation.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=implementation.cpp
 /* begin file src/implementation.cpp */
 #include <initializer_list>
 #include <climits>
@@ -26,7 +26,7 @@ std::string toBinaryString(T b) {
 
 // Implementations
 // The best choice should always come first!
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64.h
 /* begin file src/simdutf/arm64.h */
 #ifndef SIMDUTF_ARM64_H
 #define SIMDUTF_ARM64_H
@@ -53,7 +53,7 @@ namespace arm64 {
 } // namespace arm64
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/implementation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/implementation.h
 /* begin file src/simdutf/arm64/implementation.h */
 #ifndef SIMDUTF_ARM64_IMPLEMENTATION_H
 #define SIMDUTF_ARM64_IMPLEMENTATION_H
@@ -130,14 +130,14 @@ class implementation final : public simdutf::implementation {
 #endif // SIMDUTF_ARM64_IMPLEMENTATION_H
 /* end file src/simdutf/arm64/implementation.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/begin.h
 /* begin file src/simdutf/arm64/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "arm64"
 // #define SIMDUTF_IMPLEMENTATION arm64
 /* end file src/simdutf/arm64/begin.h */
 
 // Declarations
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/intrinsics.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/intrinsics.h
 /* begin file src/simdutf/arm64/intrinsics.h */
 #ifndef SIMDUTF_ARM64_INTRINSICS_H
 #define SIMDUTF_ARM64_INTRINSICS_H
@@ -149,7 +149,7 @@ class implementation final : public simdutf::implementation {
 
 #endif //  SIMDUTF_ARM64_INTRINSICS_H
 /* end file src/simdutf/arm64/intrinsics.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/bitmanipulation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/bitmanipulation.h
 /* begin file src/simdutf/arm64/bitmanipulation.h */
 #ifndef SIMDUTF_ARM64_BITMANIPULATION_H
 #define SIMDUTF_ARM64_BITMANIPULATION_H
@@ -169,7 +169,7 @@ simdutf_really_inline int count_ones(uint64_t input_num) {
 
 #endif // SIMDUTF_ARM64_BITMANIPULATION_H
 /* end file src/simdutf/arm64/bitmanipulation.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/simd.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/simd.h
 /* begin file src/simdutf/arm64/simd.h */
 #ifndef SIMDUTF_ARM64_SIMD_H
 #define SIMDUTF_ARM64_SIMD_H
@@ -782,7 +782,7 @@ simdutf_really_inline int16x8_t make_int16x8_t(int16_t x1,  int16_t x2,  int16_t
       ).to_bitmask();
     }
   }; // struct simd8x64<T>
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/simd16-inl.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/simd16-inl.h
 /* begin file src/simdutf/arm64/simd16-inl.h */
 template<typename T>
 struct simd16;
@@ -1095,7 +1095,7 @@ simdutf_really_inline simd16<int16_t>::operator simd16<uint16_t>() const { retur
 #endif // SIMDUTF_ARM64_SIMD_H
 /* end file src/simdutf/arm64/simd.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/end.h
 /* begin file src/simdutf/arm64/end.h */
 /* end file src/simdutf/arm64/end.h */
 
@@ -1103,7 +1103,7 @@ simdutf_really_inline simd16<int16_t>::operator simd16<uint16_t>() const { retur
 
 #endif // SIMDUTF_ARM64_H
 /* end file src/simdutf/arm64.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake.h
 /* begin file src/simdutf/icelake.h */
 #ifndef SIMDUTF_ICELAKE_H
 #define SIMDUTF_ICELAKE_H
@@ -1155,7 +1155,7 @@ namespace icelake {
 //
 // These two need to be included outside SIMDUTF_TARGET_REGION
 //
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake/intrinsics.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake/intrinsics.h
 /* begin file src/simdutf/icelake/intrinsics.h */
 #ifndef SIMDUTF_ICELAKE_INTRINSICS_H
 #define SIMDUTF_ICELAKE_INTRINSICS_H
@@ -1265,7 +1265,7 @@ inline __m512i _mm512_set_epi8(uint8_t a0, uint8_t a1, uint8_t a2, uint8_t a3, u
 
 #endif // SIMDUTF_HASWELL_INTRINSICS_H
 /* end file src/simdutf/icelake/intrinsics.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake/implementation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake/implementation.h
 /* begin file src/simdutf/icelake/implementation.h */
 #ifndef SIMDUTF_ICELAKE_IMPLEMENTATION_H
 #define SIMDUTF_ICELAKE_IMPLEMENTATION_H
@@ -1348,7 +1348,7 @@ class implementation final : public simdutf::implementation {
 //
 // The rest need to be inside the region
 //
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake/begin.h
 /* begin file src/simdutf/icelake/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "icelake"
 // #define SIMDUTF_IMPLEMENTATION icelake
@@ -1364,7 +1364,7 @@ SIMDUTF_DISABLE_GCC_WARNING(-Wmaybe-uninitialized)
 #endif // end of workaround
 /* end file src/simdutf/icelake/begin.h */
 // Declarations
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake/bitmanipulation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake/bitmanipulation.h
 /* begin file src/simdutf/icelake/bitmanipulation.h */
 #ifndef SIMDUTF_ICELAKE_BITMANIPULATION_H
 #define SIMDUTF_ICELAKE_BITMANIPULATION_H
@@ -1390,7 +1390,7 @@ simdutf_really_inline long long int count_ones(uint64_t input_num) {
 
 #endif // SIMDUTF_ICELAKE_BITMANIPULATION_H
 /* end file src/simdutf/icelake/bitmanipulation.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake/end.h
 /* begin file src/simdutf/icelake/end.h */
 #if SIMDUTF_CAN_ALWAYS_RUN_ICELAKE
 // nothing needed.
@@ -1409,7 +1409,7 @@ SIMDUTF_POP_DISABLE_WARNINGS
 #endif // SIMDUTF_IMPLEMENTATION_ICELAKE
 #endif // SIMDUTF_ICELAKE_H
 /* end file src/simdutf/icelake.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell.h
 /* begin file src/simdutf/haswell.h */
 #ifndef SIMDUTF_HASWELL_H
 #define SIMDUTF_HASWELL_H
@@ -1455,7 +1455,7 @@ namespace haswell {
 //
 // These two need to be included outside SIMDUTF_TARGET_REGION
 //
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/implementation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/implementation.h
 /* begin file src/simdutf/haswell/implementation.h */
 #ifndef SIMDUTF_HASWELL_IMPLEMENTATION_H
 #define SIMDUTF_HASWELL_IMPLEMENTATION_H
@@ -1534,7 +1534,7 @@ class implementation final : public simdutf::implementation {
 
 #endif // SIMDUTF_HASWELL_IMPLEMENTATION_H
 /* end file src/simdutf/haswell/implementation.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/intrinsics.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/intrinsics.h
 /* begin file src/simdutf/haswell/intrinsics.h */
 #ifndef SIMDUTF_HASWELL_INTRINSICS_H
 #define SIMDUTF_HASWELL_INTRINSICS_H
@@ -1603,7 +1603,7 @@ SIMDUTF_POP_DISABLE_WARNINGS
 //
 // The rest need to be inside the region
 //
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/begin.h
 /* begin file src/simdutf/haswell/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "haswell"
 // #define SIMDUTF_IMPLEMENTATION haswell
@@ -1619,7 +1619,7 @@ SIMDUTF_DISABLE_GCC_WARNING(-Wmaybe-uninitialized)
 #endif // end of workaround
 /* end file src/simdutf/haswell/begin.h */
 // Declarations
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/bitmanipulation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/bitmanipulation.h
 /* begin file src/simdutf/haswell/bitmanipulation.h */
 #ifndef SIMDUTF_HASWELL_BITMANIPULATION_H
 #define SIMDUTF_HASWELL_BITMANIPULATION_H
@@ -1645,7 +1645,7 @@ simdutf_really_inline long long int count_ones(uint64_t input_num) {
 
 #endif // SIMDUTF_HASWELL_BITMANIPULATION_H
 /* end file src/simdutf/haswell/bitmanipulation.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/simd.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/simd.h
 /* begin file src/simdutf/haswell/simd.h */
 #ifndef SIMDUTF_HASWELL_SIMD_H
 #define SIMDUTF_HASWELL_SIMD_H
@@ -2041,7 +2041,7 @@ namespace simd {
     }
   }; // struct simd8x64<T>
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/simd16-inl.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/simd16-inl.h
 /* begin file src/simdutf/haswell/simd16-inl.h */
 #ifdef __GNUC__
 #if __GNUC__ < 8
@@ -2320,7 +2320,7 @@ struct simd16<uint16_t>: base16_numeric<uint16_t>  {
 #endif // SIMDUTF_HASWELL_SIMD_H
 /* end file src/simdutf/haswell/simd.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/end.h
 /* begin file src/simdutf/haswell/end.h */
 #if SIMDUTF_CAN_ALWAYS_RUN_HASWELL
 // nothing needed.
@@ -2337,7 +2337,7 @@ SIMDUTF_POP_DISABLE_WARNINGS
 #endif // SIMDUTF_IMPLEMENTATION_HASWELL
 #endif // SIMDUTF_HASWELL_COMMON_H
 /* end file src/simdutf/haswell.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere.h
 /* begin file src/simdutf/westmere.h */
 #ifndef SIMDUTF_WESTMERE_H
 #define SIMDUTF_WESTMERE_H
@@ -2378,7 +2378,7 @@ namespace westmere {
 //
 // These two need to be included outside SIMDUTF_TARGET_REGION
 //
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/implementation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/implementation.h
 /* begin file src/simdutf/westmere/implementation.h */
 #ifndef SIMDUTF_WESTMERE_IMPLEMENTATION_H
 #define SIMDUTF_WESTMERE_IMPLEMENTATION_H
@@ -2455,7 +2455,7 @@ class implementation final : public simdutf::implementation {
 
 #endif // SIMDUTF_WESTMERE_IMPLEMENTATION_H
 /* end file src/simdutf/westmere/implementation.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/intrinsics.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/intrinsics.h
 /* begin file src/simdutf/westmere/intrinsics.h */
 #ifndef SIMDUTF_WESTMERE_INTRINSICS_H
 #define SIMDUTF_WESTMERE_INTRINSICS_H
@@ -2504,7 +2504,7 @@ SIMDUTF_POP_DISABLE_WARNINGS
 //
 // The rest need to be inside the region
 //
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/begin.h
 /* begin file src/simdutf/westmere/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "westmere"
 // #define SIMDUTF_IMPLEMENTATION westmere
@@ -2517,7 +2517,7 @@ SIMDUTF_TARGET_WESTMERE
 /* end file src/simdutf/westmere/begin.h */
 
 // Declarations
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/bitmanipulation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/bitmanipulation.h
 /* begin file src/simdutf/westmere/bitmanipulation.h */
 #ifndef SIMDUTF_WESTMERE_BITMANIPULATION_H
 #define SIMDUTF_WESTMERE_BITMANIPULATION_H
@@ -2543,7 +2543,7 @@ simdutf_really_inline long long int count_ones(uint64_t input_num) {
 
 #endif // SIMDUTF_WESTMERE_BITMANIPULATION_H
 /* end file src/simdutf/westmere/bitmanipulation.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/simd.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/simd.h
 /* begin file src/simdutf/westmere/simd.h */
 #ifndef SIMDUTF_WESTMERE_SIMD_H
 #define SIMDUTF_WESTMERE_SIMD_H
@@ -2987,7 +2987,7 @@ namespace simd {
     }
   }; // struct simd8x64<T>
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/simd16-inl.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/simd16-inl.h
 /* begin file src/simdutf/westmere/simd16-inl.h */
 template<typename T>
 struct simd16;
@@ -3264,7 +3264,7 @@ template<typename T>
 #endif // SIMDUTF_WESTMERE_SIMD_INPUT_H
 /* end file src/simdutf/westmere/simd.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/end.h
 /* begin file src/simdutf/westmere/end.h */
 #if SIMDUTF_CAN_ALWAYS_RUN_WESTMERE
 // nothing needed.
@@ -3277,7 +3277,7 @@ SIMDUTF_UNTARGET_REGION
 #endif // SIMDUTF_IMPLEMENTATION_WESTMERE
 #endif // SIMDUTF_WESTMERE_COMMON_H
 /* end file src/simdutf/westmere.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64.h
 /* begin file src/simdutf/ppc64.h */
 #ifndef SIMDUTF_PPC64_H
 #define SIMDUTF_PPC64_H
@@ -3304,7 +3304,7 @@ namespace ppc64 {
 } // namespace ppc64
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/implementation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/implementation.h
 /* begin file src/simdutf/ppc64/implementation.h */
 #ifndef SIMDUTF_PPC64_IMPLEMENTATION_H
 #define SIMDUTF_PPC64_IMPLEMENTATION_H
@@ -3383,14 +3383,14 @@ class implementation final : public simdutf::implementation {
 #endif // SIMDUTF_PPC64_IMPLEMENTATION_H
 /* end file src/simdutf/ppc64/implementation.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/begin.h
 /* begin file src/simdutf/ppc64/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "ppc64"
 // #define SIMDUTF_IMPLEMENTATION ppc64
 /* end file src/simdutf/ppc64/begin.h */
 
 // Declarations
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/intrinsics.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/intrinsics.h
 /* begin file src/simdutf/ppc64/intrinsics.h */
 #ifndef SIMDUTF_PPC64_INTRINSICS_H
 #define SIMDUTF_PPC64_INTRINSICS_H
@@ -3411,7 +3411,7 @@ class implementation final : public simdutf::implementation {
 
 #endif //  SIMDUTF_PPC64_INTRINSICS_H
 /* end file src/simdutf/ppc64/intrinsics.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/bitmanipulation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/bitmanipulation.h
 /* begin file src/simdutf/ppc64/bitmanipulation.h */
 #ifndef SIMDUTF_PPC64_BITMANIPULATION_H
 #define SIMDUTF_PPC64_BITMANIPULATION_H
@@ -3437,7 +3437,7 @@ simdutf_really_inline int count_ones(uint64_t input_num) {
 
 #endif // SIMDUTF_PPC64_BITMANIPULATION_H
 /* end file src/simdutf/ppc64/bitmanipulation.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/simd.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/simd.h
 /* begin file src/simdutf/ppc64/simd.h */
 #ifndef SIMDUTF_PPC64_SIMD_H
 #define SIMDUTF_PPC64_SIMD_H
@@ -3929,7 +3929,7 @@ template <typename T> struct simd8x64 {
 #endif // SIMDUTF_PPC64_SIMD_INPUT_H
 /* end file src/simdutf/ppc64/simd.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/end.h
 /* begin file src/simdutf/ppc64/end.h */
 /* end file src/simdutf/ppc64/end.h */
 
@@ -3937,7 +3937,7 @@ template <typename T> struct simd8x64 {
 
 #endif // SIMDUTF_PPC64_H
 /* end file src/simdutf/ppc64.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/fallback.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/fallback.h
 /* begin file src/simdutf/fallback.h */
 #ifndef SIMDUTF_FALLBACK_H
 #define SIMDUTF_FALLBACK_H
@@ -3966,7 +3966,7 @@ namespace fallback {
 } // namespace fallback
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/fallback/implementation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/fallback/implementation.h
 /* begin file src/simdutf/fallback/implementation.h */
 #ifndef SIMDUTF_FALLBACK_IMPLEMENTATION_H
 #define SIMDUTF_FALLBACK_IMPLEMENTATION_H
@@ -4047,14 +4047,14 @@ class implementation final : public simdutf::implementation {
 #endif // SIMDUTF_FALLBACK_IMPLEMENTATION_H
 /* end file src/simdutf/fallback/implementation.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/fallback/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/fallback/begin.h
 /* begin file src/simdutf/fallback/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "fallback"
 // #define SIMDUTF_IMPLEMENTATION fallback
 /* end file src/simdutf/fallback/begin.h */
 
 // Declarations
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/fallback/bitmanipulation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/fallback/bitmanipulation.h
 /* begin file src/simdutf/fallback/bitmanipulation.h */
 #ifndef SIMDUTF_FALLBACK_BITMANIPULATION_H
 #define SIMDUTF_FALLBACK_BITMANIPULATION_H
@@ -4089,7 +4089,7 @@ static unsigned char _BitScanReverse64(unsigned long* ret, uint64_t x) {
 #endif // SIMDUTF_FALLBACK_BITMANIPULATION_H
 /* end file src/simdutf/fallback/bitmanipulation.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/fallback/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/fallback/end.h
 /* begin file src/simdutf/fallback/end.h */
 /* end file src/simdutf/fallback/end.h */
 
@@ -4978,7 +4978,7 @@ const implementation * builtin_implementation() {
 } // namespace simdutf
 
 /* end file src/implementation.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=encoding_types.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=encoding_types.cpp
 /* begin file src/encoding_types.cpp */
 
 namespace simdutf {
@@ -5040,7 +5040,7 @@ encoding_type check_bom(const char* byte, size_t length) {
 }
 }
 /* end file src/encoding_types.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=error.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=error.cpp
 /* begin file src/error.cpp */
 namespace simdutf {
 
@@ -5052,7 +5052,7 @@ namespace simdutf {
 /* end file src/error.cpp */
 // The large tables should be included once and they
 // should not depend on a kernel.
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=tables/utf8_to_utf16_tables.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=tables/utf8_to_utf16_tables.h
 /* begin file src/tables/utf8_to_utf16_tables.h */
 #ifndef SIMDUTF_UTF8_TO_UTF16_TABLES_H
 #define SIMDUTF_UTF8_TO_UTF16_TABLES_H
@@ -9391,7 +9391,7 @@ const uint8_t utf8bigindex[4096][2] =
 
 #endif // SIMDUTF_UTF8_TO_UTF16_TABLES_H
 /* end file src/tables/utf8_to_utf16_tables.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=tables/utf16_to_utf8_tables.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=tables/utf16_to_utf8_tables.h
 /* begin file src/tables/utf16_to_utf8_tables.h */
 // file generated by scripts/sse_convert_utf16_to_utf8.py
 #ifndef SIMDUTF_UTF16_TO_UTF8_TABLES_H
@@ -9932,7 +9932,7 @@ namespace utf16_to_utf8 {
 // End of tables.
 
 // The scalar routines should be included once.
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/ascii.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/ascii.h
 /* begin file src/scalar/ascii.h */
 #ifndef SIMDUTF_ASCII_H
 #define SIMDUTF_ASCII_H
@@ -9993,7 +9993,7 @@ inline simdutf_warn_unused result validate_with_errors(const char *buf, size_t l
 
 #endif
 /* end file src/scalar/ascii.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf8.h
 /* begin file src/scalar/utf8.h */
 #ifndef SIMDUTF_UTF8_H
 #define SIMDUTF_UTF8_H
@@ -10138,7 +10138,11 @@ inline simdutf_warn_unused result validate_with_errors(const char *buf, size_t l
 
 // Finds the previous leading byte and validates with errors from there
 // Used to pinpoint the location of an error when an invalid chunk is detected
-inline simdutf_warn_unused result rewind_and_validate_with_errors(const char *buf, size_t len) noexcept {
+inline simdutf_warn_unused result rewind_and_validate_with_errors(const char *start, const char *buf, size_t len) noexcept {
+  // First check that we start with a leading byte
+  if ((*start & 0b11000000) == 0b10000000) {
+    return result(error_code::TOO_LONG, 0);
+  }
   size_t extra_len{0};
   // A leading byte cannot be further than 4 bytes away
   for(int i = 0; i < 5; i++) {
@@ -10183,7 +10187,7 @@ inline size_t utf16_length_from_utf8(const char* buf, size_t len) {
 
 #endif
 /* end file src/scalar/utf8.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf16.h
 /* begin file src/scalar/utf16.h */
 #ifndef SIMDUTF_UTF16_H
 #define SIMDUTF_UTF16_H
@@ -10297,7 +10301,7 @@ simdutf_really_inline void change_endianness_utf16(const char16_t* in, size_t si
 
 #endif
 /* end file src/scalar/utf16.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf32.h
 /* begin file src/scalar/utf32.h */
 #ifndef SIMDUTF_UTF32_H
 #define SIMDUTF_UTF32_H
@@ -10372,7 +10376,7 @@ inline size_t utf16_length_from_utf32(const char32_t* buf, size_t len) {
 #endif
 /* end file src/scalar/utf32.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf8/valid_utf32_to_utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf8/valid_utf32_to_utf8.h
 /* begin file src/scalar/utf32_to_utf8/valid_utf32_to_utf8.h */
 #ifndef SIMDUTF_VALID_UTF32_TO_UTF8_H
 #define SIMDUTF_VALID_UTF32_TO_UTF8_H
@@ -10439,7 +10443,7 @@ inline size_t convert_valid(const char32_t* buf, size_t len, char* utf8_output)
 
 #endif
 /* end file src/scalar/utf32_to_utf8/valid_utf32_to_utf8.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf8/utf32_to_utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf8/utf32_to_utf8.h
 /* begin file src/scalar/utf32_to_utf8/utf32_to_utf8.h */
 #ifndef SIMDUTF_UTF32_TO_UTF8_H
 #define SIMDUTF_UTF32_TO_UTF8_H
@@ -10555,7 +10559,7 @@ inline result convert_with_errors(const char32_t* buf, size_t len, char* utf8_ou
 #endif
 /* end file src/scalar/utf32_to_utf8/utf32_to_utf8.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf16/valid_utf32_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf16/valid_utf32_to_utf16.h
 /* begin file src/scalar/utf32_to_utf16/valid_utf32_to_utf16.h */
 #ifndef SIMDUTF_VALID_UTF32_TO_UTF16_H
 #define SIMDUTF_VALID_UTF32_TO_UTF16_H
@@ -10600,7 +10604,7 @@ inline size_t convert_valid(const char32_t* buf, size_t len, char16_t* utf16_out
 
 #endif
 /* end file src/scalar/utf32_to_utf16/valid_utf32_to_utf16.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf16/utf32_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf32_to_utf16/utf32_to_utf16.h
 /* begin file src/scalar/utf32_to_utf16/utf32_to_utf16.h */
 #ifndef SIMDUTF_UTF32_TO_UTF16_H
 #define SIMDUTF_UTF32_TO_UTF16_H
@@ -10676,7 +10680,7 @@ inline result convert_with_errors(const char32_t* buf, size_t len, char16_t* utf
 #endif
 /* end file src/scalar/utf32_to_utf16/utf32_to_utf16.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf8/valid_utf16_to_utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf8/valid_utf16_to_utf8.h
 /* begin file src/scalar/utf16_to_utf8/valid_utf16_to_utf8.h */
 #ifndef SIMDUTF_VALID_UTF16_TO_UTF8_H
 #define SIMDUTF_VALID_UTF16_TO_UTF8_H
@@ -10751,7 +10755,7 @@ inline size_t convert_valid(const char16_t* buf, size_t len, char* utf8_output)
 
 #endif
 /* end file src/scalar/utf16_to_utf8/valid_utf16_to_utf8.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf8/utf16_to_utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf8/utf16_to_utf8.h
 /* begin file src/scalar/utf16_to_utf8/utf16_to_utf8.h */
 #ifndef SIMDUTF_UTF16_TO_UTF8_H
 #define SIMDUTF_UTF16_TO_UTF8_H
@@ -10887,7 +10891,7 @@ inline result convert_with_errors(const char16_t* buf, size_t len, char* utf8_ou
 #endif
 /* end file src/scalar/utf16_to_utf8/utf16_to_utf8.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf32/valid_utf16_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf32/valid_utf16_to_utf32.h
 /* begin file src/scalar/utf16_to_utf32/valid_utf16_to_utf32.h */
 #ifndef SIMDUTF_VALID_UTF16_TO_UTF32_H
 #define SIMDUTF_VALID_UTF16_TO_UTF32_H
@@ -10929,7 +10933,7 @@ inline size_t convert_valid(const char16_t* buf, size_t len, char32_t* utf32_out
 
 #endif
 /* end file src/scalar/utf16_to_utf32/valid_utf16_to_utf32.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf32/utf16_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf16_to_utf32/utf16_to_utf32.h
 /* begin file src/scalar/utf16_to_utf32/utf16_to_utf32.h */
 #ifndef SIMDUTF_UTF16_TO_UTF32_H
 #define SIMDUTF_UTF16_TO_UTF32_H
@@ -11001,7 +11005,7 @@ inline result convert_with_errors(const char16_t* buf, size_t len, char32_t* utf
 #endif
 /* end file src/scalar/utf16_to_utf32/utf16_to_utf32.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf16/valid_utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf16/valid_utf8_to_utf16.h
 /* begin file src/scalar/utf8_to_utf16/valid_utf8_to_utf16.h */
 #ifndef SIMDUTF_VALID_UTF8_TO_UTF16_H
 #define SIMDUTF_VALID_UTF8_TO_UTF16_H
@@ -11086,7 +11090,7 @@ inline size_t convert_valid(const char* buf, size_t len, char16_t* utf16_output)
 
 #endif
 /* end file src/scalar/utf8_to_utf16/valid_utf8_to_utf16.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf16/utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf16/utf8_to_utf16.h
 /* begin file src/scalar/utf8_to_utf16/utf8_to_utf16.h */
 #ifndef SIMDUTF_UTF8_TO_UTF16_H
 #define SIMDUTF_UTF8_TO_UTF16_H
@@ -11336,7 +11340,7 @@ inline result rewind_and_convert_with_errors(size_t prior_bytes, const char* buf
 #endif
 /* end file src/scalar/utf8_to_utf16/utf8_to_utf16.h */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf32/valid_utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf32/valid_utf8_to_utf32.h
 /* begin file src/scalar/utf8_to_utf32/valid_utf8_to_utf32.h */
 #ifndef SIMDUTF_VALID_UTF8_TO_UTF32_H
 #define SIMDUTF_VALID_UTF8_TO_UTF32_H
@@ -11402,7 +11406,7 @@ inline size_t convert_valid(const char* buf, size_t len, char32_t* utf32_output)
 
 #endif
 /* end file src/scalar/utf8_to_utf32/valid_utf8_to_utf32.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf32/utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=scalar/utf8_to_utf32/utf8_to_utf32.h
 /* begin file src/scalar/utf8_to_utf32/utf8_to_utf32.h */
 #ifndef SIMDUTF_UTF8_TO_UTF32_H
 #define SIMDUTF_UTF8_TO_UTF32_H
@@ -11622,9 +11626,9 @@ SIMDUTF_DISABLE_UNDESIRED_WARNINGS
 
 
 #if SIMDUTF_IMPLEMENTATION_ARM64
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/implementation.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/implementation.cpp
 /* begin file src/arm64/implementation.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/begin.h
 /* begin file src/simdutf/arm64/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "arm64"
 // #define SIMDUTF_IMPLEMENTATION arm64
@@ -11660,7 +11664,7 @@ simdutf_really_inline simd8<bool> must_be_2_3_continuation(const simd8<uint8_t>
     return is_third_byte ^ is_fourth_byte;
 }
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_detect_encodings.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_detect_encodings.cpp
 /* begin file src/arm64/arm_detect_encodings.cpp */
 template<class checker>
 // len is known to be a multiple of 2 when this is called
@@ -11868,7 +11872,7 @@ int arm_detect_encodings(const char * buf, size_t len) {
 }
 /* end file src/arm64/arm_detect_encodings.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_validate_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_validate_utf16.cpp
 /* begin file src/arm64/arm_validate_utf16.cpp */
 template <endianness big_endian>
 const char16_t* arm_validate_utf16(const char16_t* input, size_t size) {
@@ -12018,7 +12022,7 @@ const result arm_validate_utf16_with_errors(const char16_t* input, size_t size)
     return result(error_code::SUCCESS, input - start);
 }
 /* end file src/arm64/arm_validate_utf16.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_validate_utf32le.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_validate_utf32le.cpp
 /* begin file src/arm64/arm_validate_utf32le.cpp */
 
 const char32_t* arm_validate_utf32le(const char32_t* input, size_t size) {
@@ -12083,7 +12087,7 @@ const result arm_validate_utf32le_with_errors(const char32_t* input, size_t size
 }
 /* end file src/arm64/arm_validate_utf32le.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf8_to_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf8_to_utf16.cpp
 /* begin file src/arm64/arm_convert_utf8_to_utf16.cpp */
 // Convert up to 12 bytes from utf8 to utf16 using a mask indicating the
 // end of the code points. Only the least significant 12 bits of the mask
@@ -12270,7 +12274,7 @@ size_t convert_masked_utf8_to_utf16(const char *input,
   return consumed;
 }
 /* end file src/arm64/arm_convert_utf8_to_utf16.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf8_to_utf32.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf8_to_utf32.cpp
 /* begin file src/arm64/arm_convert_utf8_to_utf32.cpp */
 // Convert up to 12 bytes from utf8 to utf32 using a mask indicating the
 // end of the code points. Only the least significant 12 bits of the mask
@@ -12407,7 +12411,7 @@ size_t convert_masked_utf8_to_utf32(const char *input,
 }
 /* end file src/arm64/arm_convert_utf8_to_utf32.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf16_to_utf8.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf16_to_utf8.cpp
 /* begin file src/arm64/arm_convert_utf16_to_utf8.cpp */
 /*
     The vectorized algorithm works on single SSE register i.e., it
@@ -12987,7 +12991,7 @@ std::pair<result, char*> arm_convert_utf16_to_utf8_with_errors(const char16_t* b
   return std::make_pair(result(error_code::SUCCESS, buf - start), reinterpret_cast<char*>(utf8_output));
 }
 /* end file src/arm64/arm_convert_utf16_to_utf8.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf16_to_utf32.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf16_to_utf32.cpp
 /* begin file src/arm64/arm_convert_utf16_to_utf32.cpp */
 /*
     The vectorized algorithm works on single SSE register i.e., it
@@ -13164,7 +13168,7 @@ std::pair<result, char32_t*> arm_convert_utf16_to_utf32_with_errors(const char16
 }
 /* end file src/arm64/arm_convert_utf16_to_utf32.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf32_to_utf8.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf32_to_utf8.cpp
 /* begin file src/arm64/arm_convert_utf32_to_utf8.cpp */
 std::pair<const char32_t*, char*> arm_convert_utf32_to_utf8(const char32_t* buf, size_t len, char* utf8_out) {
   uint8_t * utf8_output = reinterpret_cast<uint8_t*>(utf8_out);
@@ -13636,7 +13640,7 @@ std::pair<result, char*> arm_convert_utf32_to_utf8_with_errors(const char32_t* b
   return std::make_pair(result(error_code::SUCCESS, buf - start), reinterpret_cast<char*>(utf8_output));
 }
 /* end file src/arm64/arm_convert_utf32_to_utf8.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf32_to_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=arm64/arm_convert_utf32_to_utf16.cpp
 /* begin file src/arm64/arm_convert_utf32_to_utf16.cpp */
 template <endianness big_endian>
 std::pair<const char32_t*, char16_t*> arm_convert_utf32_to_utf16(const char32_t* buf, size_t len, char16_t* utf16_out) {
@@ -13769,7 +13773,7 @@ std::pair<result, char16_t*> arm_convert_utf32_to_utf16_with_errors(const char32
 } // unnamed namespace
 } // namespace arm64
 } // namespace simdutf
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
 /* begin file src/generic/buf_block_reader.h */
 namespace simdutf {
 namespace arm64 {
@@ -13864,7 +13868,7 @@ simdutf_really_inline void buf_block_reader<STEP_SIZE>::advance() {
 } // namespace arm64
 } // namespace simdutf
 /* end file src/generic/buf_block_reader.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
 /* begin file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
 namespace simdutf {
 namespace arm64 {
@@ -14053,7 +14057,7 @@ using utf8_validation::utf8_checker;
 } // namespace arm64
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
 /* begin file src/generic/utf8_validation/utf8_validator.h */
 namespace simdutf {
 namespace arm64 {
@@ -14098,7 +14102,7 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
       c.check_next_input(in);
       if(c.errors()) {
         if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
-        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input + count), length - count);
+        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input + count), length - count);
         res.count += count;
         return res;
       }
@@ -14112,7 +14116,8 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
     reader.advance();
     c.check_eof();
     if (c.errors()) {
-      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input) + count, length - count);
+      if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
+      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input) + count, length - count);
       res.count += count;
       return res;
     } else {
@@ -14180,7 +14185,7 @@ result generic_validate_ascii_with_errors(const char * input, size_t length) {
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_validator.h */
 // transcoding from UTF-8 to UTF-16
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
 
 
@@ -14255,7 +14260,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace arm64
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 
 
@@ -14563,7 +14568,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 // transcoding from UTF-8 to UTF-32
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
 
 namespace simdutf {
@@ -14609,7 +14614,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace arm64
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 
 
@@ -14910,7 +14915,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 // other functions
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8.h
 /* begin file src/generic/utf8.h */
 
 namespace simdutf {
@@ -14957,7 +14962,7 @@ simdutf_really_inline size_t utf32_length_from_utf8(const char* in, size_t size)
 } // namespace arm64
 } // namespace simdutf
 /* end file src/generic/utf8.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf16.h
 /* begin file src/generic/utf16.h */
 namespace simdutf {
 namespace arm64 {
@@ -15492,15 +15497,15 @@ simdutf_warn_unused size_t implementation::utf32_length_from_utf8(const char * i
 } // namespace arm64
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/arm64/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/arm64/end.h
 /* begin file src/simdutf/arm64/end.h */
 /* end file src/simdutf/arm64/end.h */
 /* end file src/arm64/implementation.cpp */
 #endif
 #if SIMDUTF_IMPLEMENTATION_FALLBACK
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=fallback/implementation.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=fallback/implementation.cpp
 /* begin file src/fallback/implementation.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/fallback/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/fallback/begin.h
 /* begin file src/simdutf/fallback/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "fallback"
 // #define SIMDUTF_IMPLEMENTATION fallback
@@ -15744,17 +15749,17 @@ simdutf_warn_unused size_t implementation::utf32_length_from_utf8(const char * i
 } // namespace fallback
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/fallback/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/fallback/end.h
 /* begin file src/simdutf/fallback/end.h */
 /* end file src/simdutf/fallback/end.h */
 /* end file src/fallback/implementation.cpp */
 #endif
 #if SIMDUTF_IMPLEMENTATION_ICELAKE
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/implementation.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/implementation.cpp
 /* begin file src/icelake/implementation.cpp */
 
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake/begin.h
 /* begin file src/simdutf/icelake/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "icelake"
 // #define SIMDUTF_IMPLEMENTATION icelake
@@ -15775,7 +15780,7 @@ namespace {
 #ifndef SIMDUTF_ICELAKE_H
 #error "icelake.h must be included"
 #endif
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_utf8_common.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_utf8_common.inl.cpp
 /* begin file src/icelake/icelake_utf8_common.inl.cpp */
 // Common procedures for both validating and non-validating conversions from UTF-8.
 enum block_processing_mode { SIMDUTF_FULL, SIMDUTF_TAIL};
@@ -16440,7 +16445,7 @@ simdutf_really_inline __m512i expand_utf8_to_utf32(__m512i input) {
     return expanded_utf8_to_utf32(char_class, input);
 }
 /* end file src/icelake/icelake_utf8_common.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_macros.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_macros.inl.cpp
 /* begin file src/icelake/icelake_macros.inl.cpp */
 
 /*
@@ -16576,7 +16581,7 @@ simdutf_really_inline __m512i expand_utf8_to_utf32(__m512i input) {
                 }                                                                         \
         }
 /* end file src/icelake/icelake_macros.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_from_valid_utf8.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_from_valid_utf8.inl.cpp
 /* begin file src/icelake/icelake_from_valid_utf8.inl.cpp */
 // file included directly
 
@@ -16715,7 +16720,7 @@ std::pair<const char*, OUTPUT*> valid_utf8_to_fixed_length(const char* str, size
 
 using utf8_to_utf16_result = std::pair<const char*, char16_t*>;
 /* end file src/icelake/icelake_from_valid_utf8.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_utf8_validation.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_utf8_validation.inl.cpp
 /* begin file src/icelake/icelake_utf8_validation.inl.cpp */
 // file included directly
 
@@ -16845,7 +16850,7 @@ simdutf_really_inline __m512i check_special_cases(__m512i input, const __m512i p
 
   }; // struct avx512_utf8_checker
 /* end file src/icelake/icelake_utf8_validation.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_from_utf8.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_from_utf8.inl.cpp
 /* begin file src/icelake/icelake_from_utf8.inl.cpp */
 // file included directly
 
@@ -17148,7 +17153,7 @@ std::tuple<const char*, OUTPUT*, bool> validating_utf8_to_fixed_length_with_cons
     return {ptr, output, true};
 }
 /* end file src/icelake/icelake_from_utf8.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf16_to_utf32.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf16_to_utf32.inl.cpp
 /* begin file src/icelake/icelake_convert_utf16_to_utf32.inl.cpp */
 // file included directly
 
@@ -17260,7 +17265,7 @@ std::tuple<const char16_t*, char32_t*, bool> convert_utf16_to_utf32(const char16
   return std::make_tuple(buf+carry, utf32_output, true);
 }
 /* end file src/icelake/icelake_convert_utf16_to_utf32.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf32_to_utf8.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf32_to_utf8.inl.cpp
 /* begin file src/icelake/icelake_convert_utf32_to_utf8.inl.cpp */
 // file included directly
 
@@ -17746,7 +17751,7 @@ std::pair<result, char*> avx512_convert_utf32_to_utf8_with_errors(const char32_t
   return std::make_pair(result(error_code::SUCCESS, buf - start), utf8_output);
 }
 /* end file src/icelake/icelake_convert_utf32_to_utf8.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf32_to_utf16.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf32_to_utf16.inl.cpp
 /* begin file src/icelake/icelake_convert_utf32_to_utf16.inl.cpp */
 // file included directly
 
@@ -17881,7 +17886,7 @@ std::pair<result, char16_t*> avx512_convert_utf32_to_utf16_with_errors(const cha
   return std::make_pair(result(error_code::SUCCESS, buf - start), utf16_output);
 }
 /* end file src/icelake/icelake_convert_utf32_to_utf16.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_ascii_validation.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_ascii_validation.inl.cpp
 /* begin file src/icelake/icelake_ascii_validation.inl.cpp */
 // file included directly
 
@@ -17900,7 +17905,7 @@ bool validate_ascii(const char* buf, size_t len) {
   return (_mm512_test_epi8_mask(running_or, running_or) == 0);
 }
 /* end file src/icelake/icelake_ascii_validation.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_utf32_validation.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_utf32_validation.inl.cpp
 /* begin file src/icelake/icelake_utf32_validation.inl.cpp */
 // file included directly
 
@@ -17932,7 +17937,7 @@ const char32_t* validate_utf32(const char32_t* buf, size_t len) {
     return buf;
 }
 /* end file src/icelake/icelake_utf32_validation.inl.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf16_to_utf8.inl.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=icelake/icelake_convert_utf16_to_utf8.inl.cpp
 /* begin file src/icelake/icelake_convert_utf16_to_utf8.inl.cpp */
 // file included directly
 
@@ -18299,7 +18304,7 @@ simdutf_warn_unused result implementation::validate_utf8_with_errors(const char
       checker.check_next_input(utf8);
       if(checker.errors()) {
         if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
-        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(buf + count), len - count);
+        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(buf), reinterpret_cast<const char*>(buf + count), len - count);
         res.count += count;
         return res;
       }
@@ -18310,7 +18315,7 @@ simdutf_warn_unused result implementation::validate_utf8_with_errors(const char
       checker.check_next_input(utf8);
       if(checker.errors()) {
         if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
-        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(buf + count), len - count);
+        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(buf), reinterpret_cast<const char*>(buf + count), len - count);
         res.count += count;
         return res;
       } else {
@@ -19244,7 +19249,7 @@ simdutf_warn_unused size_t implementation::utf32_length_from_utf8(const char * i
 } // namespace icelake
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/icelake/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/icelake/end.h
 /* begin file src/simdutf/icelake/end.h */
 #if SIMDUTF_CAN_ALWAYS_RUN_ICELAKE
 // nothing needed.
@@ -19260,10 +19265,10 @@ SIMDUTF_POP_DISABLE_WARNINGS
 /* end file src/icelake/implementation.cpp */
 #endif
 #if SIMDUTF_IMPLEMENTATION_HASWELL
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/implementation.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/implementation.cpp
 /* begin file src/haswell/implementation.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/begin.h
 /* begin file src/simdutf/haswell/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "haswell"
 // #define SIMDUTF_IMPLEMENTATION haswell
@@ -19306,7 +19311,7 @@ simdutf_really_inline simd8<bool> must_be_2_3_continuation(const simd8<uint8_t>
   return simd8<int8_t>(is_third_byte | is_fourth_byte) > int8_t(0);
 }
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_detect_encodings.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_detect_encodings.cpp
 /* begin file src/haswell/avx2_detect_encodings.cpp */
 template<class checker>
 // len is known to be a multiple of 2 when this is called
@@ -19496,7 +19501,7 @@ int avx2_detect_encodings(const char * buf, size_t len) {
 }
 /* end file src/haswell/avx2_detect_encodings.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_validate_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_validate_utf16.cpp
 /* begin file src/haswell/avx2_validate_utf16.cpp */
 /*
     In UTF-16 words in range 0xD800 to 0xDFFF have special meaning.
@@ -19697,7 +19702,7 @@ const result avx2_validate_utf16_with_errors(const char16_t* input, size_t size)
     return result(error_code::SUCCESS, input - start);
 }
 /* end file src/haswell/avx2_validate_utf16.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_validate_utf32le.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_validate_utf32le.cpp
 /* begin file src/haswell/avx2_validate_utf32le.cpp */
 /* Returns:
    - pointer to the last unprocessed character (a scalar fallback should check the rest);
@@ -19763,7 +19768,7 @@ const result avx2_validate_utf32le_with_errors(const char32_t* input, size_t siz
 }
 /* end file src/haswell/avx2_validate_utf32le.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf8_to_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf8_to_utf16.cpp
 /* begin file src/haswell/avx2_convert_utf8_to_utf16.cpp */
 // depends on "tables/utf8_to_utf16_tables.h"
 
@@ -19946,7 +19951,7 @@ size_t convert_masked_utf8_to_utf16(const char *input,
   return consumed;
 }
 /* end file src/haswell/avx2_convert_utf8_to_utf16.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf8_to_utf32.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf8_to_utf32.cpp
 /* begin file src/haswell/avx2_convert_utf8_to_utf32.cpp */
 // depends on "tables/utf8_to_utf16_tables.h"
 
@@ -20075,7 +20080,7 @@ size_t convert_masked_utf8_to_utf32(const char *input,
 }
 /* end file src/haswell/avx2_convert_utf8_to_utf32.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf16_to_utf8.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf16_to_utf8.cpp
 /* begin file src/haswell/avx2_convert_utf16_to_utf8.cpp */
 /*
     The vectorized algorithm works on single SSE register i.e., it
@@ -20608,7 +20613,7 @@ std::pair<result, char*> avx2_convert_utf16_to_utf8_with_errors(const char16_t*
   return std::make_pair(result(error_code::SUCCESS, buf - start), utf8_output);
 }
 /* end file src/haswell/avx2_convert_utf16_to_utf8.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf16_to_utf32.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf16_to_utf32.cpp
 /* begin file src/haswell/avx2_convert_utf16_to_utf32.cpp */
 /*
     The vectorized algorithm works on single SSE register i.e., it
@@ -20793,7 +20798,7 @@ std::pair<result, char32_t*> avx2_convert_utf16_to_utf32_with_errors(const char1
 }
 /* end file src/haswell/avx2_convert_utf16_to_utf32.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf32_to_utf8.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf32_to_utf8.cpp
 /* begin file src/haswell/avx2_convert_utf32_to_utf8.cpp */
 std::pair<const char32_t*, char*> avx2_convert_utf32_to_utf8(const char32_t* buf, size_t len, char* utf8_output) {
   const char32_t* end = buf + len;
@@ -21276,7 +21281,7 @@ std::pair<result, char*> avx2_convert_utf32_to_utf8_with_errors(const char32_t*
   return std::make_pair(result(error_code::SUCCESS, buf - start), utf8_output);
 }
 /* end file src/haswell/avx2_convert_utf32_to_utf8.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf32_to_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=haswell/avx2_convert_utf32_to_utf16.cpp
 /* begin file src/haswell/avx2_convert_utf32_to_utf16.cpp */
 template <endianness big_endian>
 std::pair<const char32_t*, char16_t*> avx2_convert_utf32_to_utf16(const char32_t* buf, size_t len, char16_t* utf16_output) {
@@ -21412,7 +21417,7 @@ std::pair<result, char16_t*> avx2_convert_utf32_to_utf16_with_errors(const char3
 } // namespace haswell
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
 /* begin file src/generic/buf_block_reader.h */
 namespace simdutf {
 namespace haswell {
@@ -21507,7 +21512,7 @@ simdutf_really_inline void buf_block_reader<STEP_SIZE>::advance() {
 } // namespace haswell
 } // namespace simdutf
 /* end file src/generic/buf_block_reader.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
 /* begin file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
 namespace simdutf {
 namespace haswell {
@@ -21696,7 +21701,7 @@ using utf8_validation::utf8_checker;
 } // namespace haswell
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
 /* begin file src/generic/utf8_validation/utf8_validator.h */
 namespace simdutf {
 namespace haswell {
@@ -21741,7 +21746,7 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
       c.check_next_input(in);
       if(c.errors()) {
         if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
-        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input + count), length - count);
+        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input + count), length - count);
         res.count += count;
         return res;
       }
@@ -21755,7 +21760,8 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
     reader.advance();
     c.check_eof();
     if (c.errors()) {
-      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input) + count, length - count);
+      if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
+      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input) + count, length - count);
       res.count += count;
       return res;
     } else {
@@ -21823,7 +21829,7 @@ result generic_validate_ascii_with_errors(const char * input, size_t length) {
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_validator.h */
 // transcoding from UTF-8 to UTF-16
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
 
 
@@ -21898,7 +21904,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace haswell
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 
 
@@ -22206,7 +22212,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 // transcoding from UTF-8 to UTF-32
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
 
 namespace simdutf {
@@ -22252,7 +22258,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace haswell
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 
 
@@ -22553,7 +22559,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 // other functions
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8.h
 /* begin file src/generic/utf8.h */
 
 namespace simdutf {
@@ -22600,7 +22606,7 @@ simdutf_really_inline size_t utf32_length_from_utf8(const char* in, size_t size)
 } // namespace haswell
 } // namespace simdutf
 /* end file src/generic/utf8.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf16.h
 /* begin file src/generic/utf16.h */
 namespace simdutf {
 namespace haswell {
@@ -23128,7 +23134,7 @@ simdutf_warn_unused size_t implementation::utf32_length_from_utf8(const char * i
 } // namespace haswell
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/haswell/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/haswell/end.h
 /* begin file src/simdutf/haswell/end.h */
 #if SIMDUTF_CAN_ALWAYS_RUN_HASWELL
 // nothing needed.
@@ -23144,14 +23150,14 @@ SIMDUTF_POP_DISABLE_WARNINGS
 /* end file src/haswell/implementation.cpp */
 #endif
 #if SIMDUTF_IMPLEMENTATION_PPC64
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=ppc64/implementation.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=ppc64/implementation.cpp
 /* begin file src/ppc64/implementation.cpp */
 
 
 
 
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/begin.h
 /* begin file src/simdutf/ppc64/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "ppc64"
 // #define SIMDUTF_IMPLEMENTATION ppc64
@@ -23189,7 +23195,7 @@ simdutf_really_inline simd8<bool> must_be_2_3_continuation(const simd8<uint8_t>
 } // namespace ppc64
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
 /* begin file src/generic/buf_block_reader.h */
 namespace simdutf {
 namespace ppc64 {
@@ -23284,7 +23290,7 @@ simdutf_really_inline void buf_block_reader<STEP_SIZE>::advance() {
 } // namespace ppc64
 } // namespace simdutf
 /* end file src/generic/buf_block_reader.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
 /* begin file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
 namespace simdutf {
 namespace ppc64 {
@@ -23473,7 +23479,7 @@ using utf8_validation::utf8_checker;
 } // namespace ppc64
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
 /* begin file src/generic/utf8_validation/utf8_validator.h */
 namespace simdutf {
 namespace ppc64 {
@@ -23518,7 +23524,7 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
       c.check_next_input(in);
       if(c.errors()) {
         if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
-        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input + count), length - count);
+        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input + count), length - count);
         res.count += count;
         return res;
       }
@@ -23532,7 +23538,8 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
     reader.advance();
     c.check_eof();
     if (c.errors()) {
-      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input) + count, length - count);
+      if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
+      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input) + count, length - count);
       res.count += count;
       return res;
     } else {
@@ -23600,7 +23607,7 @@ result generic_validate_ascii_with_errors(const char * input, size_t length) {
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_validator.h */
 // transcoding from UTF-8 to UTF-16
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
 
 
@@ -23675,7 +23682,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace ppc64
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 
 
@@ -23983,7 +23990,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 // transcoding from UTF-8 to UTF-32
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
 
 namespace simdutf {
@@ -24029,7 +24036,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace ppc64
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 
 
@@ -24330,7 +24337,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 // other functions
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8.h
 /* begin file src/generic/utf8.h */
 
 namespace simdutf {
@@ -24377,7 +24384,7 @@ simdutf_really_inline size_t utf32_length_from_utf8(const char* in, size_t size)
 } // namespace ppc64
 } // namespace simdutf
 /* end file src/generic/utf8.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf16.h
 /* begin file src/generic/utf16.h */
 namespace simdutf {
 namespace ppc64 {
@@ -24676,15 +24683,15 @@ simdutf_warn_unused size_t implementation::utf32_length_from_utf8(const char * i
 } // namespace ppc64
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/ppc64/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/ppc64/end.h
 /* begin file src/simdutf/ppc64/end.h */
 /* end file src/simdutf/ppc64/end.h */
 /* end file src/ppc64/implementation.cpp */
 #endif
 #if SIMDUTF_IMPLEMENTATION_WESTMERE
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/implementation.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/implementation.cpp
 /* begin file src/westmere/implementation.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/begin.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/begin.h
 /* begin file src/simdutf/westmere/begin.h */
 // redefining SIMDUTF_IMPLEMENTATION to "westmere"
 // #define SIMDUTF_IMPLEMENTATION westmere
@@ -24722,7 +24729,7 @@ simdutf_really_inline simd8<bool> must_be_2_3_continuation(const simd8<uint8_t>
   return simd8<int8_t>(is_third_byte | is_fourth_byte) > int8_t(0);
 }
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_detect_encodings.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_detect_encodings.cpp
 /* begin file src/westmere/sse_detect_encodings.cpp */
 template<class checker>
 // len is known to be a multiple of 2 when this is called
@@ -24932,7 +24939,7 @@ int sse_detect_encodings(const char * buf, size_t len) {
 }
 /* end file src/westmere/sse_detect_encodings.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_validate_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_validate_utf16.cpp
 /* begin file src/westmere/sse_validate_utf16.cpp */
 /*
     In UTF-16 words in range 0xD800 to 0xDFFF have special meaning.
@@ -25132,7 +25139,7 @@ const result sse_validate_utf16_with_errors(const char16_t* input, size_t size)
     return result(error_code::SUCCESS, input - start);
 }
 /* end file src/westmere/sse_validate_utf16.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_validate_utf32le.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_validate_utf32le.cpp
 /* begin file src/westmere/sse_validate_utf32le.cpp */
 /* Returns:
    - pointer to the last unprocessed character (a scalar fallback should check the rest);
@@ -25198,7 +25205,7 @@ const result sse_validate_utf32le_with_errors(const char32_t* input, size_t size
 }
 /* end file src/westmere/sse_validate_utf32le.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf8_to_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf8_to_utf16.cpp
 /* begin file src/westmere/sse_convert_utf8_to_utf16.cpp */
 // depends on "tables/utf8_to_utf16_tables.h"
 
@@ -25383,7 +25390,7 @@ size_t convert_masked_utf8_to_utf16(const char *input,
   return consumed;
 }
 /* end file src/westmere/sse_convert_utf8_to_utf16.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf8_to_utf32.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf8_to_utf32.cpp
 /* begin file src/westmere/sse_convert_utf8_to_utf32.cpp */
 // depends on "tables/utf8_to_utf16_tables.h"
 
@@ -25515,7 +25522,7 @@ size_t convert_masked_utf8_to_utf32(const char *input,
 }
 /* end file src/westmere/sse_convert_utf8_to_utf32.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf16_to_utf8.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf16_to_utf8.cpp
 /* begin file src/westmere/sse_convert_utf16_to_utf8.cpp */
 /*
     The vectorized algorithm works on single SSE register i.e., it
@@ -26043,7 +26050,7 @@ std::pair<result, char*> sse_convert_utf16_to_utf8_with_errors(const char16_t* b
   return std::make_pair(result(error_code::SUCCESS, buf - start), utf8_output);
 }
 /* end file src/westmere/sse_convert_utf16_to_utf8.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf16_to_utf32.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf16_to_utf32.cpp
 /* begin file src/westmere/sse_convert_utf16_to_utf32.cpp */
 /*
     The vectorized algorithm works on single SSE register i.e., it
@@ -26227,7 +26234,7 @@ std::pair<result, char32_t*> sse_convert_utf16_to_utf32_with_errors(const char16
 }
 /* end file src/westmere/sse_convert_utf16_to_utf32.cpp */
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf32_to_utf8.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf32_to_utf8.cpp
 /* begin file src/westmere/sse_convert_utf32_to_utf8.cpp */
 std::pair<const char32_t*, char*> sse_convert_utf32_to_utf8(const char32_t* buf, size_t len, char* utf8_output) {
   const char32_t* end = buf + len;
@@ -26728,7 +26735,7 @@ std::pair<result, char*> sse_convert_utf32_to_utf8_with_errors(const char32_t* b
   return std::make_pair(result(error_code::SUCCESS, buf - start), utf8_output);
 }
 /* end file src/westmere/sse_convert_utf32_to_utf8.cpp */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf32_to_utf16.cpp
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=westmere/sse_convert_utf32_to_utf16.cpp
 /* begin file src/westmere/sse_convert_utf32_to_utf16.cpp */
 template <endianness big_endian>
 std::pair<const char32_t*, char16_t*> sse_convert_utf32_to_utf16(const char32_t* buf, size_t len, char16_t* utf16_output) {
@@ -26867,7 +26874,7 @@ std::pair<result, char16_t*> sse_convert_utf32_to_utf16_with_errors(const char32
 } // namespace westmere
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/buf_block_reader.h
 /* begin file src/generic/buf_block_reader.h */
 namespace simdutf {
 namespace westmere {
@@ -26962,7 +26969,7 @@ simdutf_really_inline void buf_block_reader<STEP_SIZE>::advance() {
 } // namespace westmere
 } // namespace simdutf
 /* end file src/generic/buf_block_reader.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_lookup4_algorithm.h
 /* begin file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
 namespace simdutf {
 namespace westmere {
@@ -27151,7 +27158,7 @@ using utf8_validation::utf8_checker;
 } // namespace westmere
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_lookup4_algorithm.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_validation/utf8_validator.h
 /* begin file src/generic/utf8_validation/utf8_validator.h */
 namespace simdutf {
 namespace westmere {
@@ -27196,7 +27203,7 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
       c.check_next_input(in);
       if(c.errors()) {
         if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
-        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input + count), length - count);
+        result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input + count), length - count);
         res.count += count;
         return res;
       }
@@ -27210,7 +27217,8 @@ result generic_validate_utf8_with_errors(const uint8_t * input, size_t length) {
     reader.advance();
     c.check_eof();
     if (c.errors()) {
-      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input) + count, length - count);
+      if (count != 0) { count--; } // Sometimes the error is only detected in the next chunk
+      result res = scalar::utf8::rewind_and_validate_with_errors(reinterpret_cast<const char*>(input), reinterpret_cast<const char*>(input) + count, length - count);
       res.count += count;
       return res;
     } else {
@@ -27278,7 +27286,7 @@ result generic_validate_ascii_with_errors(const char * input, size_t length) {
 } // namespace simdutf
 /* end file src/generic/utf8_validation/utf8_validator.h */
 // transcoding from UTF-8 to UTF-16
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/valid_utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
 
 
@@ -27353,7 +27361,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace westmere
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/valid_utf8_to_utf16.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf16/utf8_to_utf16.h
 /* begin file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 
 
@@ -27661,7 +27669,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf16/utf8_to_utf16.h */
 // transcoding from UTF-8 to UTF-32
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/valid_utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
 
 namespace simdutf {
@@ -27707,7 +27715,7 @@ simdutf_warn_unused size_t convert_valid(const char* input, size_t size,
 } // namespace westmere
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/valid_utf8_to_utf32.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8_to_utf32/utf8_to_utf32.h
 /* begin file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 
 
@@ -28008,7 +28016,7 @@ using namespace simd;
 } // namespace simdutf
 /* end file src/generic/utf8_to_utf32/utf8_to_utf32.h */
 // other functions
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf8.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf8.h
 /* begin file src/generic/utf8.h */
 
 namespace simdutf {
@@ -28055,7 +28063,7 @@ simdutf_really_inline size_t utf32_length_from_utf8(const char* in, size_t size)
 } // namespace westmere
 } // namespace simdutf
 /* end file src/generic/utf8.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=generic/utf16.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=generic/utf16.h
 /* begin file src/generic/utf16.h */
 namespace simdutf {
 namespace westmere {
@@ -28587,7 +28595,7 @@ simdutf_warn_unused size_t implementation::utf32_length_from_utf8(const char * i
 } // namespace westmere
 } // namespace simdutf
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/src, filename=simdutf/westmere/end.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/src, filename=simdutf/westmere/end.h
 /* begin file src/simdutf/westmere/end.h */
 #if SIMDUTF_CAN_ALWAYS_RUN_WESTMERE
 // nothing needed.
diff --git a/deps/simdutf/simdutf.h b/deps/simdutf/simdutf.h
index f63c163c0f2b30..22a49f48c6bc95 100644
--- a/deps/simdutf/simdutf.h
+++ b/deps/simdutf/simdutf.h
@@ -1,11 +1,11 @@
-/* auto-generated on 2023-06-05 08:58:28 -0400. Do not edit! */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf.h
+/* auto-generated on 2023-08-11 13:30:54 -0400. Do not edit! */
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf.h
 /* begin file include/simdutf.h */
 #ifndef SIMDUTF_H
 #define SIMDUTF_H
 #include <cstring>
 
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/compiler_check.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/compiler_check.h
 /* begin file include/simdutf/compiler_check.h */
 #ifndef SIMDUTF_COMPILER_CHECK_H
 #define SIMDUTF_COMPILER_CHECK_H
@@ -43,13 +43,13 @@
 
 #endif // SIMDUTF_COMPILER_CHECK_H
 /* end file include/simdutf/compiler_check.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/common_defs.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/common_defs.h
 /* begin file include/simdutf/common_defs.h */
 #ifndef SIMDUTF_COMMON_DEFS_H
 #define SIMDUTF_COMMON_DEFS_H
 
 #include <cassert>
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/portability.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/portability.h
 /* begin file include/simdutf/portability.h */
 #ifndef SIMDUTF_PORTABILITY_H
 #define SIMDUTF_PORTABILITY_H
@@ -280,7 +280,7 @@ use a 64-bit target such as x64, 64-bit ARM or 64-bit PPC.")
 
 #endif // SIMDUTF_PORTABILITY_H
 /* end file include/simdutf/portability.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/avx512.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/avx512.h
 /* begin file include/simdutf/avx512.h */
 #ifndef SIMDUTF_AVX512_H_
 #define SIMDUTF_AVX512_H_
@@ -483,7 +483,7 @@ use a 64-bit target such as x64, 64-bit ARM or 64-bit PPC.")
 
 #endif // SIMDUTF_COMMON_DEFS_H
 /* end file include/simdutf/common_defs.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/encoding_types.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/encoding_types.h
 /* begin file include/simdutf/encoding_types.h */
 #include <string>
 
@@ -531,7 +531,7 @@ size_t bom_byte_size(encoding_type bom);
 } // BOM namespace
 } // simdutf namespace
 /* end file include/simdutf/encoding_types.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/error.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/error.h
 /* begin file include/simdutf/error.h */
 #ifndef ERROR_H
 #define ERROR_H
@@ -568,7 +568,7 @@ SIMDUTF_PUSH_DISABLE_WARNINGS
 SIMDUTF_DISABLE_UNDESIRED_WARNINGS
 
 // Public API
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/simdutf_version.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/simdutf_version.h
 /* begin file include/simdutf/simdutf_version.h */
 // /include/simdutf/simdutf_version.h automatically generated by release.py,
 // do not change by hand
@@ -576,7 +576,7 @@ SIMDUTF_DISABLE_UNDESIRED_WARNINGS
 #define SIMDUTF_SIMDUTF_VERSION_H
 
 /** The version of simdutf being used (major.minor.revision) */
-#define SIMDUTF_VERSION "3.2.14"
+#define SIMDUTF_VERSION "3.2.17"
 
 namespace simdutf {
 enum {
@@ -591,13 +591,13 @@ enum {
   /**
    * The revision (major.minor.REVISION) of simdutf being used.
    */
-  SIMDUTF_VERSION_REVISION = 14
+  SIMDUTF_VERSION_REVISION = 17
 };
 } // namespace simdutf
 
 #endif // SIMDUTF_SIMDUTF_VERSION_H
 /* end file include/simdutf/simdutf_version.h */
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/implementation.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/implementation.h
 /* begin file include/simdutf/implementation.h */
 #ifndef SIMDUTF_IMPLEMENTATION_H
 #define SIMDUTF_IMPLEMENTATION_H
@@ -607,7 +607,7 @@ enum {
 #endif
 #include <vector>
 #include <tuple>
-// dofile: invoked with prepath=/Users/lemire/CVS/github/simdutf/include, filename=simdutf/internal/isadetection.h
+// dofile: invoked with prepath=/Users/dlemire/CVS/github/simdutf/include, filename=simdutf/internal/isadetection.h
 /* begin file include/simdutf/internal/isadetection.h */
 /* From
 https://github.com/endorno/pytorch/blob/master/torch/lib/TH/generic/simd/simd.h
diff --git a/doc/contributing/maintaining/maintaining-dependencies.md b/doc/contributing/maintaining/maintaining-dependencies.md
index 21022b7c1421ae..aa93b638cce060 100644
--- a/doc/contributing/maintaining/maintaining-dependencies.md
+++ b/doc/contributing/maintaining/maintaining-dependencies.md
@@ -27,7 +27,7 @@ This a list of all the dependencies:
 * [npm 9.6.7][]
 * [openssl 3.0.8][]
 * [postject 1.0.0-alpha.6][]
-* [simdutf 3.2.14][]
+* [simdutf 3.2.17][]
 * [undici 5.23.0][]
 * [uvwasi 0.0.16][]
 * [V8 11.3.244.8][]
@@ -286,7 +286,7 @@ See [maintaining-openssl][] for more informations.
 The [postject](https://github.com/nodejs/postject) dependency is used for the
 [Single Executable strategic initiative](https://github.com/nodejs/single-executable).
 
-### simdutf 3.2.14
+### simdutf 3.2.17
 
 The [simdutf](https://github.com/simdutf/simdutf) dependency is
 a C++ library for fast UTF-8 decoding and encoding.
@@ -344,7 +344,7 @@ performance improvements not currently available in standard zlib.
 [npm 9.6.7]: #npm-967
 [openssl 3.0.8]: #openssl-308
 [postject 1.0.0-alpha.6]: #postject-100-alpha6
-[simdutf 3.2.14]: #simdutf-3214
+[simdutf 3.2.17]: #simdutf-3217
 [undici 5.23.0]: #undici-5230
 [update-openssl-action]: ../../../.github/workflows/update-openssl.yml
 [uvwasi 0.0.16]: #uvwasi-0016