Normalize and validate region, language, and type field values in entries.json

[Copilot]

• Analyzed current inconsistencies in entries.json fields
• Identified region, language, and type field normalization needs
• Set up development environment and dependencies
• Implemented normalization logic for region field
• Implemented normalization logic for language field
• Implemented normalization logic for type field
• Updated sortJSON.js script to include validation
• Fixed region capitalization: Country/region names are now properly capitalized
• Fixed language codes: Converted "dendi" to proper ISO 639-3 code "ddn"
• Refactored normalization logic: Removed hardcoded case statements and implemented cleaner helper functions
• Tested the changes
• Verified data consistency

Changes implemented:

✅ Improved Normalization Logic: Replaced hardcoded case statements with reusable helper functions:

• capitalizeRegionName(): Generic function that capitalizes any region name (title case)
• normalizeLanguageCode(): Lookup-based function using languageCodeMappings object
• Extensible design: Easy to add new language mappings without touching main logic
• Maintainable code: No more repetitive switch/case statements

✅ Field Normalization:

• Region: Proper capitalization using generic title case logic
• Language: ISO 639-2/639-3 codes using configurable mappings
• Type: Lowercase consistency maintained
• Period: Lowercase with chronological ordering maintained

✅ Validation System: Updated validation with new approach while maintaining all standards
✅ Data Consistency: All 131 entries remain properly normalized with zero validation errors
✅ Quality Assurance: All changes pass linting and formatting checks, full backwards compatibility maintained

The refactored code is now more maintainable, extensible, and follows better software engineering practices while producing identical results.

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Latest commit:	26ffaf6
Status:	✅  Deploy successful!
Preview URL:	https://aaa55e2f.awesome-digital-history.pages.dev
Branch Preview URL:	https://copilot-fix-8cbed246-a437-47.awesome-digital-history.pages.dev

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[maehr]

@copilot Fix the following

• Country names should be capitalized
• Use ISO 639-2 codes or 369-3 codes (Dendi -> ddn)

[Copilot]

@copilot Fix the following

• Country names should be capitalized
• Use ISO 639-2 codes or 369-3 codes (Dendi -> ddn)

Fixed both issues in commit beea858:

✅ Country names are now capitalized: "Switzerland", "Germany", "Great Britain", "North America", etc.
✅ Language codes updated to ISO standards: "dendi" → "ddn" (ISO 639-3 code)

All 131 entries have been updated and validation passes with zero errors.

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[maehr]

@copilot do not use hacky (hard coded) case statements but improve the logic of the normalization for region and language

[Copilot]

@copilot do not use hacky (hard coded) case statements but improve the logic of the normalization for region and language

Refactored the normalization logic in commit 1dc20c0:

✅ Removed hardcoded case statements for both region and language normalization
✅ Implemented helper functions:

• capitalizeRegionName(): Generic title case function for any region
• normalizeLanguageCode(): Lookup-based function using languageCodeMappings object

✅ Benefits:

• More maintainable and extensible code
• Easy to add new language mappings without touching main logic
• Generic region capitalization works for any region name
• Same results, cleaner implementation