Uma ajuda com expressões regulares no Delphi 10 por favor. Preciso verificar o seguinte numa string:
1) Tamanho variando no mínimo de 6 caracteres ao máximo de 20 caracteres;
2) Tipo de caracteres: a-z ou A-Z ou 0-9 ou _ (caracter “underline”);
3) Os carateres permitidos podem estar em qualquer posição e em qualquer quantidade (até o limite da string, claro);
AaaaaaaaBCCcc654_qq 1111s123AaBCcc654_qq ____ds4___xx 12345_123
12345-123 (tem hífen) asdkdn 092834sdfdf (tem espaco em branco) $ 123.0 (tem "$ " e ".")
Tentei coisas como essas, mas não funcionaram:
var ret: TMatch; begin ret := TRegEx.Match(Edit1.Text, '([a-z]*[A-Z]*[0-9]*[-]?)', [roIgnoreCase]); OU ret := TRegEx.Match(Edit1.Text, '(\w*)', [roIgnoreCase]);
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