philiprehberger_string_ext

String extension methods for case conversion, truncation, masking, and validation

Requirements

• Dart >= 3.6

Installation

Add to your pubspec.yaml:

dependencies:
  philiprehberger_string_ext: ^0.3.0

Then run:

dart pub get

Usage

import 'package:philiprehberger_string_ext/string_ext.dart';

print('hello world'.titleCase);   // Hello World
print('helloWorld'.snakeCase);    // hello_world
print('Hello World'.truncate(5)); // Hello...
print('user@example.com'.isEmail); // true

Case Conversion

'hello'.capitalized    // => 'Hello'
'hello world'.titleCase // => 'Hello World'
'hello world'.camelCase // => 'helloWorld'
'hello world'.pascalCase // => 'HelloWorld'
'helloWorld'.snakeCase  // => 'hello_world'
'helloWorld'.kebabCase  // => 'hello-world'

Counts and Whitespace

'hello world foo'.wordCount      // => 3
'a\nb\nc'.lineCount               // => 3
'a\r\nb\r\nc'.lines               // => ['a', 'b', 'c']
'  hi   there  '.squish           // => 'hi there'

Truncation & Masking

'Hello World'.truncate(5)                       // => 'Hello...'
'Hello World'.truncate(5, ellipsis: '…')        // => 'Hello…'
'4111111111111111'.mask(start: 4, end: 12)      // => '4111********1111'
'hello'.reversed                                 // => 'olleh'
'hello world foo'.words                          // => ['hello', 'world', 'foo']

Initials and Wrapping

import 'package:philiprehberger_string_ext/philiprehberger_string_ext.dart';

'John Doe'.initials;          // 'JD'
'alice bob charlie'.initials;  // 'ABC'

'The quick brown fox jumps over the lazy dog'.wrap(20);
// 'The quick brown fox\njumps over the lazy\ndog'

Validation

'user@example.com'.isEmail  // => true
'https://example.com'.isUrl // => true
'12345'.isNumeric           // => true
'  '.isBlank                // => true

API

Member	Type	Description
capitalized	String	Capitalize the first letter
titleCase	String	Capitalize first letter of each word
camelCase	String	Convert to camelCase
pascalCase	String	Convert to PascalCase
snakeCase	String	Convert to snake_case
kebabCase	String	Convert to kebab-case
truncate(maxLength, {ellipsis})	String	Truncate with ellipsis
mask({start, end, char})	String	Mask characters in range
reversed	String	Reverse the string
words	List<String>	Split into words by whitespace
initials	String	Extract first letter of each word
wrap(width)	String	Wrap text at word boundaries
lines	List<String>	Split into lines (handles \n, \r\n, \r)
lineCount	int	Number of lines (0 for empty string)
wordCount	int	Number of whitespace-separated tokens
squish	String	Collapse whitespace runs and trim ends
isEmail	bool	Whether string is a valid email
isUrl	bool	Whether string is a valid URL
isNumeric	bool	Whether string is numeric only
isBlank	bool	Whether string is empty or whitespace

Development

dart pub get
dart analyze --fatal-infos
dart test

Support

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License

MIT