Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Raises LookupError for not implements error handlers
Improves repr() rendering for unicode.

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Added feature detection at the start of bytes_decode_errors.py test to
skip gracefully when decode method is not available.
(requires MICROPY_CPYTHON_COMPAT).

This fixes test failures on minimal builds and Windows builds that
may not have this feature enabled.

Test now:
- Checks if decode method exists before running tests
- Prints "SKIP" and exits cleanly if decode is not available
- Works correctly on both full-featured and minimal builds

Verified:
- Standard unix build: All tests pass (14 testcases)
- Minimal unix build: Test skips cleanly
- All bytes/bytearray/string tests pass (82 tests, 2191 testcases)

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Only accepts `utf-8`, `utf8` or `ascii`

Fixes micropython#15849

Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>

Fixes: issue 3364
Fixes: issue 13084

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Fixes Issue 17827

Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Prevent the test from failing by not testing known unsupported characters.
These will be documented in a cpydiff test.

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

This allows simpler skipping of tests based on enabled capabilities.

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Removed the dead \U%08x branch in uni_print_quoted.
Characters ≥ 0x110000 are impossible in valid UTF-8, so the branch
was unreachable. It's replaced by a single else that handles
surrogates (0xD800–0xDFFF) with \u%04x.

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Added  multi-byte sequences to improve test coverage.

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>

+ Correct a few typos in comments.

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>

The MP_IS_COMPRESSED_ROM_STRING macro in qstr.h only checkes
if the first byte of a string is 0xff (compression marker).
This caused user-allocated strings on the heap that happened
to start with 0xff (utf-8 continuation byte) to be incorrectly
treated as compressed ROM string.

Modified decompress_error_text_maybe() to add heap pointer validation
before attempting decompression. The fix checks if the pointer is in
the GC heap - if it is, it cannot be a ROM compressed string and
should not be decompressed.
The validation uses the same logic as the VERIFY_PTR macro from gc.c

Alternative to : micropython#17862

Fixes: micropython#17855
Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <jos_verlinde@hotmail.com>

Signed-off-by: Jos Verlinde <Jos_Verlinde@hotmail.com>