Merge branch 'notmatch-pr' into validators

# Conflicts:
#	CHANGELOG.md

Author: martijn00

CHANGELOG.md

@@ -8,6 +8,7 @@
 * Add uppercase
 * Add lowercase
 * Add file extension
+* Add notMatch
 
 ## 10.0.2
 * Reland generated l10n files

README.md

@@ -59,6 +59,7 @@ Available built-in validators include:
 - `FormBuilderValidators.integer()` - requires the field's value to be an integer.
 - `FormBuilderValidators.ip()` - requires the field's value to be a valid IP address.
 - `FormBuilderValidators.match()` - requires the field's value to match the provided regex pattern.
+- `FormBuilderValidators.notMatch()` - requires the field's value to not match the provided regex pattern.
 - `FormBuilderValidators.max()` - requires the field's value to be less than or equal to the provided number.
 - `FormBuilderValidators.maxLength()` - requires the length of the field's value to be less than or equal to the provided maximum size.
 - `FormBuilderValidators.maxWordsCount()` - requires the word count of the field's value to be less than or equal to the provided maximum count.

lib/src/form_builder_validators.dart

@@ -270,6 +270,16 @@ class FormBuilderValidators {
           ? errorText ?? FormBuilderLocalizations.current.matchErrorText
           : null;
 
+  /// [FormFieldValidator] that requires the field's value not to match the provided regex pattern.
+  static FormFieldValidator<String> notMatch(
+    String pattern, {
+    String? errorText,
+  }) =>
+      (valueCandidate) => true == valueCandidate?.isNotEmpty &&
+              RegExp(pattern).hasMatch(valueCandidate!)
+          ? errorText ?? FormBuilderLocalizations.current.matchErrorText
+          : null;
+
   /// [FormFieldValidator] that requires the field's value to be a valid number.
   static FormFieldValidator<String> numeric({
     String? errorText,