stringo 1.0.0

Zero-dependency Dart string toolkit - case conversion, word splitting, slugify, truncate, mask, and whitespace normalization.

CHANGELOG

1.0.0

Initial release.

stringo is the string toolkit extracted from dart_helper_utils into a standalone, zero-dependency package. dart_helper_utils 6.1.0 and later re-export it, so existing code keeps working without an import change.

Included

• Case conversion: toWords plus 15 case styles (toCamelCase, toPascalCase, toSnakeCase, toKebabCase, toDotCase, toTitleCase, toScreamingSnakeCase, toScreamingKebabCase, toPascalSnakeCase, toPascalKebabCase, toTrainCase, toCamelSnakeCase, toCamelKebabCase, toFlatCase, toScreamingCase), toTitle, capitalizeFirstLetter, lowercaseFirstLetter, capitalizeFirstLowerRest, shouldIgnoreCapitalization, tryToLowerCase, tryToUpperCase.
• Transforms: slugify, truncate, mask, normalizeWhitespace, clean, toOneLine, removeWhiteSpaces, removeEmptyLines, words, lines, nullIfEmpty, nullIfBlank, orEmpty, insert, toCharArray, equalsIgnoreCase, removeSurrounding, replaceBefore, replaceAfter.
• Checks: isBlank / isEmptyOrNull (and negations), isNumeric, isAlphabet, isAlphanumeric, startsWithNumber, containsDigits, hasCapitalLetter, hasMatch, and the six backing regex constants.

Changes from the dart_helper_utils originals

• toTitleCase and toTitle now always capitalize the first word. Previously a leading stop word was lowercased, so 'the lord of the rings'.toTitleCase produced 'the Lord of the Rings'. It now produces 'The Lord of the Rings', matching conventional title casing and the behavior the original documentation already described.
• titleCaseExceptions is now public and backed by a Set for constant-time lookup instead of a private List.
• mask rejects negative visibleStart / visibleEnd with an ArgumentError instead of failing later with a RangeError.
• insert is implemented with substring rather than a List<String> round-trip. Behavior is unchanged; out-of-range indices still throw a RangeError.
• Extension type names dropped the DHU prefix and are grouped by concern: StringCaseExtensions, NullableStringCaseExtensions, StringTransformExtensions, NullableStringTransformExtensions, and StringChecksExtensions.

Deliberately not included

Domain validation (isValidEmail, isValidPhoneNumber, isValidUrl, isValidUsername, isValidCurrency, isUuid, isValidIp4), MIME and file type checks, parseDuration, and base64 helpers all remain in dart_helper_utils. Those judge real-world formats rather than transform text, and their correct behavior varies by project.