24 lines
810 B
Dart
24 lines
810 B
Dart
//library inflection2.snake_case;
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import 'dart:convert';
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final _underscoreRE0 = RegExp(r'''([A-Z\d]+)([A-Z][a-z])''');
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final _underscoreRE1 = RegExp(r'''([a-z\d])([A-Z])''');
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final _underscoreRE2 = RegExp(r'[-\s]');
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class SnakeCaseEncoder extends Converter<String, String> {
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const SnakeCaseEncoder();
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/// Converts the input [phrase] to 'spinal case', i.e. a hyphen-delimited,
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/// lowercase form. Also known as 'kebab case' or 'lisp case'.
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@override
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String convert(String phrase) {
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return phrase
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.replaceAllMapped(_underscoreRE0, (match) => '${match[1]}_${match[2]}')
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.replaceAllMapped(_underscoreRE1, (match) => '${match[1]}_${match[2]}')
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.replaceAll(_underscoreRE2, '_')
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.toLowerCase();
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}
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}
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const Converter<String, String> SNAKE_CASE = SnakeCaseEncoder();
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