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Jared Hancock b3cd41dd4b py/lexer: Allow conversion specifiers in f-strings (e.g. !r). 
PEP-498 allows for conversion specifiers like !r and !s to convert the
expression declared in braces to be passed through repr() and str()
respectively.

This updates the logic that detects the end of the expression to also stop
when it sees "![rs]" that is either at the end of the f-string or before
the ":" indicating the start of the format specifier. The "![rs]" is now
retained in the format string, whereas previously it stayed on the end
of the expression leading to a syntax error.

Previously: `f"{x!y:z}"` --> `"{:z}".format(x!y)`
Now: `f"{x!y:z}"` --> `"{!y:z}".format(x)`

Note that "!a" is not supported by `str.format` as MicroPython has no
`ascii()`, but now this will raise the correct error.

Updated cpydiff and added tests.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
 		2023-06-14 19:11:04 +10:00
..
modules tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules2/subpkg tests/cpydiff/core_import_split_ns_pkgs: Test for split namespace packages. 2017-05-03 17:16:19 +03:00
modules3 tests/cpydiff: Add cpydiff test for __all__ used in imported package. 2020-05-02 17:41:04 +10:00
builtin_next_arg2.py tests/cpydiff: Fix markup where "`" (xref) was used instead of "``" (code). 2017-12-03 15:32:09 +02:00
core_class_delnotimpl.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
core_class_mro.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
core_class_supermultiple.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
core_class_superproperty.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
core_fstring_concat.py tests/cpydiff: Clarify f-string diffs regarding concatenation. 2021-11-25 22:09:59 +11:00
core_fstring_parser.py py/lexer: Support nested [] and {} characters within f-string params. 2021-11-25 21:50:58 +11:00
core_fstring_raw.py py: Implement partial PEP-498 (f-string) support. 2021-08-14 16:58:40 +10:00
core_fstring_repr.py py/lexer: Allow conversion specifiers in f-strings (e.g. !r). 2023-06-14 19:11:04 +10:00
core_function_argcount.py tests/cpydiff/core_arguments: Move under Functions subsection. 2017-07-09 13:36:28 +03:00
core_function_moduleattr.py tests/cpydiff: Add test and workaround for function.__module__ attr. 2021-05-16 11:06:46 +10:00
core_function_userattr.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
core_generator_noexit.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
core_import_all.py tests/cpydiff: Add cpydiff test for __all__ used in imported package. 2020-05-02 17:41:04 +10:00
core_import_path.py all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
core_import_split_ns_pkgs.py all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
core_locals.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
core_locals_eval.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
module_array_comparison.py py/objarray: Prohibit comparison of mismatching types. 2021-05-13 22:16:14 +10:00
module_array_constructor.py tests/cpydiff: Add test for array constructor with overflowing value. 2021-06-13 10:30:14 +10:00
modules_array_containment.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_array_deletion.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_array_subscrstep.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_deque.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_json_nonserializable.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_os_environ.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_os_getenv.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_random_getrandbits.py extmod/modurandom: Add error message when getrandbits has bad value. 2021-05-30 16:41:30 +10:00
modules_random_randint.py all: Update Python formatting to latest Black version 22.1.0. 2022-02-02 16:49:55 +11:00
modules_struct_fewargs.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_struct_manyargs.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
modules_struct_whitespace_in_format.py tests/cpydiff/modules_struct_whitespace_in_format: Run black. 2021-07-06 18:19:55 -05:00
modules_sys_stdassign.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
syntax_arg_unpacking.py py/runtime: Allow multiple *args in a function call. 2022-03-31 16:59:30 +11:00
syntax_assign_expr.py tests/cpydiff: Add CPy diff test for assignment expression behaviour. 2020-06-16 22:06:47 +10:00
syntax_spaces.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
syntax_unicode_nameesc.py tests/cpydiff: Add initial set of tests for uPy-CPython differences. 2017-02-20 16:50:34 +11:00
types_bytearray_sliceassign.py tests/cpydiff: Add initial set of tests for uPy-CPython differences. 2017-02-20 16:50:34 +11:00
types_bytes_format.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_bytes_keywords.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_bytes_subscrstep.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_dict_keys_set.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_exception_attrs.py py/objexcept: Support errno attribute on OSError exceptions. 2021-04-23 22:03:46 +10:00
types_exception_chaining.py tests/cpydiff: Add initial set of tests for uPy-CPython differences. 2017-02-20 16:50:34 +11:00
types_exception_instancevar.py tests/cpydiff/: Improve wording, add more workarounds. 2017-07-09 14:33:55 +03:00
types_exception_loops.py tests/cpydiff/: Improve wording, add more workarounds. 2017-07-09 14:33:55 +03:00
types_exception_subclassinit.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_float_implicit_conversion.py tests/cpydiff: Fix formatting of code snippet to use double quotes. 2022-07-29 12:23:05 +10:00
types_float_rounding.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_int_bit_length.py extmod/modurandom: Add error message when getrandbits has bad value. 2021-05-30 16:41:30 +10:00
types_int_subclassconv.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_list_delete_subscrstep.py tests/cpydiff/: Improve wording, add more workarounds. 2017-07-09 14:33:55 +03:00
types_list_store_noniter.py tests/cpydiff: Add a test for storing iterable to a list slice. 2017-02-20 17:22:12 +11:00
types_list_store_subscrstep.py tests/cpydiff/: Improve wording, add more workarounds. 2017-07-09 14:33:55 +03:00
types_str_endswith.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_str_formatsubscr.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_str_keywords.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_str_ljust_rjust.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_str_rsplitnone.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_str_subscrstep.py tests: Format all Python code with black, except tests in basics subdir. 2020-03-30 13:21:58 +11:00
types_tuple_subscrstep.py tests/cpydiff: Add initial set of tests for uPy-CPython differences. 2017-02-20 16:50:34 +11:00