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XmlLayout - Optimize XML escape to reduce string enumeration - #6095
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WalkthroughModified the XML escaping logic in NLog's XmlHelper to remove pre-escape character sanitization, adjusted the EscapeXmlString method signature by removing the startIndex parameter, and restructured control flow to handle surrogate pairs and defer invalid character removal to fallback scenarios. Changes
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem
🚥 Pre-merge checks | ✅ 1 | ❌ 2❌ Failed checks (1 warning, 1 inconclusive)
✅ Passed checks (1 passed)
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🧪 Generate unit tests (beta)
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🧹 Nitpick comments (1)
src/NLog/Internal/XmlHelper.cs (1)
154-167:startIndexvariable name is now misleading — consider renamingAfter removing the
startIndexparameter fromEscapeXmlString, the local variablestartIndexcomputed at line 156 is only tested as>= 0; its numeric value is never consumed. The name implies a positional offset that is no longer used.♻️ Suggested rename for clarity
- var startIndex = text.IndexOfAny(xmlEncodeNewlines ? XmlEscapeNewlineChars : XmlEscapeChars); - if (startIndex >= 0) + var needsEscape = text.IndexOfAny(xmlEncodeNewlines ? XmlEscapeNewlineChars : XmlEscapeChars) >= 0; + if (needsEscape)🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed. In `@src/NLog/Internal/XmlHelper.cs` around lines 154 - 167, The local variable startIndex in EscapeXmlWhenNeeded is misleading because its numeric value is unused after checking >= 0; rename it to a boolean-like name (e.g., needsEscape or hasEscapeChar) and update the conditional to check that boolean to make intent clear, and keep calls to EscapeXmlString(text, xmlEncodeNewlines, sb) and RemoveInvalidXmlChars(text, builder) unchanged; reference: EscapeXmlWhenNeeded, EscapeXmlString, RemoveInvalidXmlChars.
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.
Nitpick comments:
In `@src/NLog/Internal/XmlHelper.cs`:
- Around line 154-167: The local variable startIndex in EscapeXmlWhenNeeded is
misleading because its numeric value is unused after checking >= 0; rename it to
a boolean-like name (e.g., needsEscape or hasEscapeChar) and update the
conditional to check that boolean to make intent clear, and keep calls to
EscapeXmlString(text, xmlEncodeNewlines, sb) and RemoveInvalidXmlChars(text,
builder) unchanged; reference: EscapeXmlWhenNeeded, EscapeXmlString,
RemoveInvalidXmlChars.
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snakefoot
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Followup to #6094