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refactor: simplify ampersand segment check

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Maintainer edit: keep the single-ampersand guard behavior, but fold the redirect exceptions into one condition instead of carrying temporary previous/next character variables.
This commit is contained in:
chengyongru 2026-07-01 14:38:40 +08:00 committed by Xubin Ren
parent 12c52c11d3
commit ab6ceef1a1
1 changed files with 4 additions and 5 deletions
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9
nanobot/agent/tools/shell.py
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@ -879,11 +879,10 @@ class ExecTool(Tool):
if paren_depth == 0:
if command.startswith(("&&", "||"), i):
operator_len = 2
elif ch == "&":
prev_ch = command[i - 1] if i > 0 else ""
next_ch = command[i + 1] if i + 1 < len(command) else ""
if prev_ch not in {"<", ">"} and next_ch != ">":
operator_len = 1
elif ch == "&" and not (
(i > 0 and command[i - 1] in "<>") or command.startswith("&>", i)
):
operator_len = 1
elif ch in {";", "|"}:
operator_len = 1