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For version highlighting, don't rewind past number-letter boundaries.
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1 changed files with 19 additions and 5 deletions
24
src/nvd
24
src/nvd
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@ -106,6 +106,8 @@ PROFILE_LINK_REGEX = re.compile(r"^(?P<profile>.+)-(?P<version>[0-9]+)-link$")
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ALPHANUM_RE = re.compile(r"\w") # Alternatively [0-9a-zA-Z] would work.
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ALPHANUM_RE = re.compile(r"\w") # Alternatively [0-9a-zA-Z] would work.
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DIGIT_RE = re.compile("[0-9]")
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def raise_arg(e):
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def raise_arg(e):
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raise e
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raise e
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@ -688,12 +690,24 @@ def find_common_version_prefix_lists(*lsts: list[str]) -> int:
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# looks weird to show e.g. "1.15 -> 1.17" with only the 5 and 7 highlighted.
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# looks weird to show e.g. "1.15 -> 1.17" with only the 5 and 7 highlighted.
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# It's nicer to highlight 15 and 17.
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# It's nicer to highlight 15 and 17.
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#
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#
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# It might also make sense to rewind from the middle of a number, or from
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# Also, we want to rewind from the middle of a number but stop if we reach
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# the middle of a word, but *not* cross over from a word to a number or vice
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# the end of a preceeding word, or vice versa. For example, with
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# versa.
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# "1.9.15p2 -> 1.9.15p5", we should just highlight the final digit, not the
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# common "15p" part. This is consistent with Nix treating numbers and
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# letters as separate chunks.
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if not first and i < len(target) and i > 0 and ALPHANUM_RE.fullmatch(target[i]):
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if not first and i < len(target) and i > 0 and ALPHANUM_RE.fullmatch(target[i]):
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while i > 0 and ALPHANUM_RE.fullmatch(target[i - 1]):
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if DIGIT_RE.fullmatch(target[i]):
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i -= 1
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# Rewind only through digits.
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while i > 0 and DIGIT_RE.fullmatch(target[i - 1]):
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i -= 1
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else:
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# Rewind only through letters.
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while (
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i > 0
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and ALPHANUM_RE.fullmatch(target[i - 1])
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and not DIGIT_RE.fullmatch(target[i - 1])
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):
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i -= 1
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return i
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return i
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