Convert a list of SNAKE_CASE strings into a Dart enum/map declaration

main.dart

void main() {
  const enumName = "Status";
  const text = """
  PRE_TRADING, TRADING, POST_TRADING, END_OF_DAY, HALT, AUCTION_MATCH, BREAK
  """;

  final valueList = _sanitize(text);
  final camelList = _camelize(valueList);
  
  print(_buildEnumDeclaration(enumName, camelList));
  print(_buildMapDeclaration(enumName, valueList, camelList));
}

/// Sanitizes a string list of keys separated by commas and whitespace
List<String> _sanitize(String s) => s.replaceAll(RegExp(r'\s'), "").split(',');

/// Camelizes a list of SNAKE_CASE_STRINGS
List<String> _camelize(List<String> list) => list.map((l) {
      final words = l.split("_");
      final firstWord = words.first.toLowerCase();

      final lastWords = words.sublist(1).map((w) => _capitalize(w));

      return firstWord + lastWords.join("");
    }).toList();

/// Generates a Dart enum declaration
String _buildEnumDeclaration(String enumName, List<String> camelList) => """
enum $enumName {
  ${camelList.join(",\n  ")}
}
  """;

/// Generates a Dart map declaration for converting string values to enums
String _buildMapDeclaration(
    String enumName, List<String> list, List<String> camelList) {
  final entries = Map.fromIterables(list, camelList).entries;

  return """
const ${enumName.toLowerCase()}Map = <String, $enumName>{
  ${entries.map((e) => "'${e.key}': $enumName.${e.value}").join(",\n  ")}
};
  """;
}

/// Capitalize a string
String _capitalize(String s) =>
    s[0].toUpperCase() + s.substring(1).toLowerCase();

DartPad:

https://dartpad.dartlang.org/a4b516cf0a5f5e2a27f67e85f7d0dda5

Input:

Status
PRE_TRADING, TRADING, POST_TRADING, END_OF_DAY, HALT, AUCTION_MATCH, BREAK

Output:

enum Status {
  preTrading,
  trading,
  postTrading,
  endOfDay,
  halt,
  auctionMatch,
  break
}
  
const statusMap = <String, Status>{
  'PRE_TRADING': Status.preTrading,
  'TRADING': Status.trading,
  'POST_TRADING': Status.postTrading,
  'END_OF_DAY': Status.endOfDay,
  'HALT': Status.halt,
  'AUCTION_MATCH': Status.auctionMatch,
  'BREAK': Status.break
};

Does not filter reserved keywords like "break"