logfilter

Overview ¶

Package logfilter provides a simple query syntax for filtering logs. The syntax supports:

• Word matching: `error` matches logs containing "error" (case-insensitive)
• Quoted phrases: `"error message"` or `'error message'` matches exact phrase (case-insensitive)
• Regex matching: `/pattern/` matches logs matching the regex pattern
• Negation: `-word` excludes logs containing "word"
• Multiple terms: `error timeout` requires both terms to match (AND)

Examples:

• `error` - logs containing "error"
• `"connection failed"` - logs containing exact phrase "connection failed"
• `error timeout` - logs containing both "error" AND "timeout"
• `-debug` - logs NOT containing "debug"
• `error -debug` - logs containing "error" but NOT "debug"
• `/err(or)?/` - logs matching the regex
• `error /warn(ing)?/` - logs containing "error" AND matching the regex