Upgrade to 2.0.0, see changelog

lib/src/scraping.dart

@@ -0,0 +1,75 @@
+/// Remove all newlines from a string
+String removeNewlines(String str) {
+  return str.replaceAll(RegExp(r'(?:\r|\n)'), '').trim();
+}
+
+/// Remove alltext between two positions, and remove all newlines 
+String getStringBetweenIndicies(String data, int startIndex, int endIndex) {
+  final result = data.substring(startIndex, endIndex);
+  return removeNewlines(result).trim();
+}
+
+/// Try to find a string between two pieces of text
+String? getStringBetweenStrings(
+  String data,
+  String startString,
+  String endString,
+) {
+  final regex = RegExp(
+    '${RegExp.escape(startString)}(.*?)${RegExp.escape(endString)}',
+    dotAll: true,
+  );
+
+  final match = regex.allMatches(data).toList();
+  return match.isNotEmpty ? match[0].group(1).toString() : null;
+}
+
+/// Try to find an int inbetween two pieces of text
+int? getIntBetweenStrings(
+  String data,
+  String startString,
+  String endString,
+) {
+  final stringBetweenStrings =
+      getStringBetweenStrings(data, startString, endString);
+  return stringBetweenStrings != null ? int.parse(stringBetweenStrings) : null;
+}
+
+/// Get all regex matches
+List<String> getAllGlobalGroupMatches(String str, RegExp regex) {
+  final regexResults = regex.allMatches(str).toList();
+  final results = <String>[];
+  for (var match in regexResults) {
+    final m = match.group(1);
+    if (m != null) results.add(m);
+  }
+
+  return results;
+}
+
+/// Get all matches of `<a>DATA</a>`
+List<String> parseAnchorsToArray(String str) {
+  final regex = RegExp(r'<a href=".*?">(.*?)<\/a>');
+  return getAllGlobalGroupMatches(str, regex);
+}
+
+/// An exception to be thrown whenever a parser fails by not finding an expected pattern.
+class ParserException implements Exception {
+  /// The error message to report
+  final String message;
+
+  // ignore: public_member_api_docs
+  const ParserException(this.message);
+}
+
+/// Throw a `ParserException` if variable is null
+dynamic assertNotNull({
+  required dynamic variable,
+  String errorMessage =
+      "Unexpected null-value occured. Is the provided document corrupt, or has Jisho been updated?",
+}) {
+  if (variable == null) {
+    throw ParserException(errorMessage);
+  }
+  return variable!;
+}