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WalkthroughA new detection rule file for the FFN format has been added to the project. The file initializes with the format name "font" and contains a Changes
Sequence Diagram(s)sequenceDiagram
participant C as Caller
participant D as detect()
participant B as Binary.compare
C->>D: Invoke detect()
D->>B: Call Binary.compare with "'FNTF'"
B-->>D: Return comparison result
D-->>C: Return detection result (bDetected, sVersion)
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Actionable comments posted: 0
🧹 Nitpick comments (4)
db/Binary/font.FFN.sg (4)
8-8: Clarify compare vs. contains usage.There's a comment suggesting to "Use contains instead of compare" but the code is using
compare. This creates confusion about the intended behavior. Either update the comment or change the method based on what's actually needed.If
Binary.compareis checking for an exact match at a specific position, and that's what you need, update the comment. If you actually need to search for the string anywhere in the file, consider using a different method if one is available.
7-16: Consider adding more specific signature detection.The current detection relies solely on finding the string "'FNTF'" without specifying an offset or additional validation. This could potentially lead to false positives.
Consider adding:
- A check at a specific file offset if applicable
- Additional signature validations if they exist for FFN format
- File structure checks if appropriate
For example:
function detect() { - if (Binary.compare("'FNTF'")) { // Use contains instead of compare + // Check for 'FNTF' signature at offset 0 (or specific offset if different) + if (Binary.compare("'FNTF'", 0)) { sVersion = "Font"; // Set version if detected bDetected = true; // Mark as detected + + // Additional validation if applicable + // if (Binary.read(uint32, offset) == expectedValue) { + // bDetected = true; + // } } else { bDetected = false; // Mark as not detected if the string is not found } return result(); // Return the result of the detection }
11-13: Simplify the detection logic.Setting
bDetected = falsein the else clause may be redundant ifbDetectedis initialized tofalseby default in the system.Consider simplifying:
function detect() { if (Binary.compare("'FNTF'")) { // Use contains instead of compare sVersion = "Font"; // Set version if detected bDetected = true; // Mark as detected - } else { - bDetected = false; // Mark as not detected if the string is not found } return result(); // Return the result of the detection }
9-9: Consider providing more specific version information.The current version is set generically to "Font". If there are specific FFN format versions that can be detected, consider identifying them more precisely.
For example:
if (Binary.compare("'FNTF'")) { - sVersion = "Font"; // Set version if detected + // Extract or determine more specific version information if possible + sVersion = "FFN"; // Or specific version if detectable bDetected = true; }
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🔇 Additional comments (2)
db/Binary/font.FFN.sg (2)
1-4: Great documentation!Clear header comments that provide essential information about the file's purpose, authorship, and supported formats.
5-5: Appropriate initialization.Correct initialization for a font detection rule targeting the FFN format.
2 participants
This PR is done for this format. So this can be reviewed and merged if its good.
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