resharp 0.4.2

high-performance regex engine with intersection and complement operations
Documentation 
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description = '''
negative tests for invalid patterns and parser error paths.
all tests use expect_error = true to verify Regex::new returns Err.
'''

[[test]]
name = "unclosed_class"
pattern = "[unclosed"
expect_error = true
reason = "ClassUnclosed"

[[test]]
name = "unclosed_group"
pattern = "(unclosed"
expect_error = true
reason = "GroupUnclosed"

[[test]]
name = "repetition_missing_operand"
pattern = "*"
expect_error = true
reason = "RepetitionMissing"

[[test]]
name = "class_range_invalid"
pattern = "[z-a]"
expect_error = true
reason = "ClassRangeInvalid"

[[test]]
name = "escape_hex_invalid"
pattern = '\xGG'
expect_error = true
reason = "EscapeHexInvalid"

[[test]]
name = "group_name_empty"
pattern = "(?P<>abc)"
expect_error = true
reason = "GroupNameEmpty"

[[test]]
name = "unclosed_repetition"
pattern = "a{3"
expect_error = true
reason = "RepetitionCountUnclosed"

[[test]]
name = "nested_unclosed_group"
pattern = "((abc)"
expect_error = true
reason = "GroupUnclosed - nested"

[[test]]
name = "invalid_escape"
pattern = '\p{InvalidPropertyName}'
expect_error = true
reason = "UnicodePropertyNotFound"

[[test]]
name = "empty_pattern_repetition"
pattern = "+abc"
expect_error = true
reason = "RepetitionMissing - plus"

[[test]]
name = "unclosed_class_negated"
pattern = "[^abc"
expect_error = true
reason = "ClassUnclosed - negated"

[[test]]
name = "swap_greed_flag_inline"
pattern = '(?U).*'
expect_error = true
reason = "SwapGreed flag unsupported"

[[test]]
name = "swap_greed_flag_group"
pattern = '(?U:.*?)'
expect_error = true
reason = "SwapGreed flag in group unsupported"