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Fix copyright detection for bracket notation [C] and [c] #4612

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Fix copyright detection for bracket notation [C] and [c] #4612

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5bcc04c
Fix #3659: Normalize [C] and [c] to (c) in copyright detection
levi42x Nov 20, 2025
87932ac
Address PR feedback: use real copyright examples and remove extra spaces
Dec 16, 2025
d2c22dd
Normalize [c] to (c) and update ignorable metadata
Jan 28, 2026
390db1a
Remove unused bracket sample
Jan 28, 2026
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5 changes: 5 additions & 0 deletions src/cluecode/copyrights.py
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Expand Up @@ -4502,6 +4502,11 @@ def prepare_text_line(line):

# normalize copyright signs, quotes and spacing around them
.replace('"Copyright', '" Copyright')

# normalize [C] and [c] to (c) before bracket removal
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.replace('[C]', '(c)')
.replace('[c]', '(c)')

.replace('( C)', ' (c) ')
.replace('(C)', ' (c) ')
.replace('(c)', ' (c) ')
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10 changes: 10 additions & 0 deletions tests/cluecode/test_copyrights_basic.py
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Expand Up @@ -68,6 +68,16 @@ def test_prepare_text_line_does_not_damage_urls(self):
result = prepare_text_line(cp)
assert result == 'copyright (c) 2000 World Wide Web Consortium, http://www.w3.org'

def test_prepare_text_line_normalizes_bracket_C_uppercase(self):
cp = '[C] The Regents of the University of Michigan and Merit Network, Inc. 1992, 1993, 1994, 1995 All Rights Reserved'
result = prepare_text_line(cp)
assert result == '(c) The Regents of the University of Michigan and Merit Network, Inc. 1992, 1993, 1994, 1995 All Rights Reserved'

def test_prepare_text_line_normalizes_bracket_c_lowercase(self):
cp = 'Copyright [c] 2023 Example Company'
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result = prepare_text_line(cp)
assert result == 'Copyright (c) 2023 Example Company'

def test_prepare_text_line_does_replace_copyright_signs(self):
cp = 'Copyright \\A9 1991, 1999 Free Software Foundation, Inc.'
result = prepare_text_line(cp)
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