64 lines
1.5 KiB
Dart
64 lines
1.5 KiB
Dart
extension StringExtensions on String {
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String substringAfter(String pattern) {
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final startIndex = indexOf(pattern);
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if (startIndex == -1) return substring(0);
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final start = startIndex + pattern.length;
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return substring(start);
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}
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String substringAfterLast(String pattern) {
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return split(pattern).last;
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}
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String substringBefore(String pattern) {
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final endIndex = indexOf(pattern);
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if (endIndex == -1) return substring(0);
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return substring(0, endIndex);
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}
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String substringBeforeLast(String pattern) {
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final endIndex = lastIndexOf(pattern);
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if (endIndex == -1) return substring(0);
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return substring(0, endIndex);
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}
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String substringBetween(String left, String right) {
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int startIndex = 0;
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int index = indexOf(left, startIndex);
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if (index == -1) return "";
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int leftIndex = index + left.length;
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int rightIndex = indexOf(right, leftIndex);
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if (rightIndex == -1) return "";
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startIndex = rightIndex + right.length;
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return substring(leftIndex, rightIndex);
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}
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String replaceForbiddenCharacters(String source) {
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return replaceAll(
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RegExp(
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r'[\\/:*?"<>|\0]|(^CON$|^PRN$|^AUX$|^NUL$|^COM[1-9]$|^LPT[1-9]$)'),
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source);
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}
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bool isMediaVideo() {
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return [
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"3gp",
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"avi",
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"mpg",
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"mpeg",
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"webm",
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"ogg",
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"flv",
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"m4v",
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"mvp",
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"mp4",
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"wmv",
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"mkv",
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"mov",
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"ts"
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].any((extension) => toLowerCase().endsWith(extension));
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}
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}
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