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Optimize algorithm implementations

RooCodeInc/Roo-Code
Based on 4 comments
Typescript

When implementing algorithms, ensure they are both efficient and correct across all input cases. Key considerations: 1. **Pattern matching edge cases**: Ensure regex patterns handle all edge cases, including matches at the beginning of strings. For example, replace `/[^\\]`[^`\n]+`/` with `/(?:^|[^\\])`[^`\n]+`/` to catch backticks at string start.

Algorithms Typescript

Reviewer Prompt

When implementing algorithms, ensure they are both efficient and correct across all input cases. Key considerations:

  1. Pattern matching edge cases: Ensure regex patterns handle all edge cases, including matches at the beginning of strings. For example, replace /[^\\][^\n]+/ with /(?:^ [^\])[^\n]+/ to catch backticks at string start.
  2. Algorithmic complexity: Prevent potential denial-of-service vulnerabilities by analyzing time complexity of algorithms, especially regular expressions on user input. For example, avoid patterns like /^\[([^\]]*)\]\s*(.*)$/ that can cause performance issues with certain inputs.

  3. False positive prevention: Configure pattern detection algorithms to avoid false matches. Start pattern searches from length 2 instead of 1 to prevent single repeated elements from being incorrectly identified as patterns:
    // Instead of:
    for (let patternLength = 1; patternLength <= maxPatternLength; patternLength++) {
    // Use:
    for (let patternLength = 2; patternLength <= maxPatternLength; patternLength++) {
    
  4. Precise matching: For keyword detection, use word boundaries instead of simple substring matching to improve accuracy:
    // Instead of:
    return keywords.some((keyword) => text.includes(keyword))
    // Use:
    return keywords.some((keyword) => new RegExp(`\\b${keyword}\\b`).test(text))
    

Following these practices helps create algorithms that are not only computationally efficient but also robust against edge cases and potential security exploits.

4
Comments Analyzed
Typescript
Primary Language
Algorithms
Category

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