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Unicode Latin-1 show non valid characters #186

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merged 2 commits into from Apr 9, 2019
Merged

Unicode Latin-1 show non valid characters #186

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166b8ae
Show non valid latin code characters when LatinValidator fails.
michaelmairegger Apr 9, 2019
59e014c
Use HashSet to display each wrong letter only once
michaelmairegger Apr 9, 2019
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41 changes: 38 additions & 3 deletions Validators/LatinValidators.cs
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@@ -1,16 +1,19 @@
using System.Text.RegularExpressions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using FluentValidation;
using FluentValidation.Validators;

namespace FatturaElettronica.Validators
{

public abstract class LatinBaseValidator<T> : PropertyValidator
{
private readonly Charsets _charset;


public LatinBaseValidator(Charsets charset)
: base($"Testo contenente caratteri non validi ({(charset == Charsets.BasicLatin ? "Unicode Basic Latin" : "Unicode Latin-1 Supplement")})")
: base($"Testo contenente caratteri non validi ({(charset == Charsets.BasicLatin ? "Unicode Basic Latin" : "Unicode Latin-1 Supplement")}). valori non accettati: {{NonLatinCode}}")
{
_charset = charset;
}
Expand All @@ -30,6 +33,38 @@ protected override bool IsValid(PropertyValidatorContext context)
}
return Regex.Match(context.PropertyValue.ToString(), challenge).Success;
}

protected override void PrepareMessageFormatterForValidationError(PropertyValidatorContext context)
{
base.PrepareMessageFormatterForValidationError(context);

var invalidLetters = new HashSet<char>();
if (context.PropertyValue != null)
{
foreach (var letter in context.PropertyValue.ToString())
{
int upperLimit;
switch (_charset)
{
case Charsets.BasicLatin:
upperLimit = 0x7F;
break;
case Charsets.Latin1Supplement:
upperLimit = 0xFF;
break;
default:
throw new ArgumentOutOfRangeException();
}

if (letter > upperLimit)
{
invalidLetters.Add(letter);
}
}
}

context.MessageFormatter.AppendArgument("NonLatinCode", new string(invalidLetters.ToArray()));
}
}

public class BasicLatinValidator<T> : LatinBaseValidator<T>
Expand Down