• Syntastic API is undergoing changes
• 1. Checker directory structure
• 2. Checker anatomy
• 2.1. IsAvailable() callback (optional)
• 2.2. GetLocList() callback (mandatory)
• 2.3. GetHighlightRegex(item) callback (optional)
• 2.4. Call to g:SyntasticRegistry.CreateAndRegisterChecker() (mandatory)
• 3. Helper functions
• 3.1. SyntasticMake(options)
• 3.2. makeprgBuild(options)
• 4. Final steps
• 5. Duplicate checkers
• 6. Checkers disabled for security reasons
• 7. External checkers