I have a Aplicação Web
that has a user registry, I would like to know how do I prevent the user from sending as a name, email (cadastral data) a Zalgo Text
.
Zalgo Example Text:
̵̵̵̵̵̴̷̷̢̢̢̢̢̡̢̢̥͍̫̻͚̦͖͇͖̩͙͖̩͙̼̙̳̼̙̳̼̙̳̟̗̹̻̜͕̼̙̳̼̙̳̫̻̮̤̫̫̌ͪ̇ͤ̑̐͋̾͐͑ͬ̄̿̍͐͑ͬ̄̿̍̒̄ͥ̋̐̒̄ͥ̋̐̒̄ͥ̋̐ͣ̐ͤͤ͒̒̄ͥ̋̐̒̄ͥ̋̐̿̆̊ͤͨ̏ͤͧͤͨ̏ͤͧ̍͆͑̈̕̚̚͘҉͍̤̘͔̹̭̍͆͑̈͢҉͍̤̘͔̹̭̍͆͑̈͢҉͍̤̘͔̹̭̍͆͑̈͢҉͍̤̘͔̹̭̍͆͑̈͢҉͍̤̘͔̹̭͢ ̥̮̘ͨ̄͢S̯̮̖͒.̥̮̘ͨ̄͢ B. ̝̥̰͋ͬ̋͛͑̚W̶̹̹̣̟͕ͪͤ̽i̳̪͉͇͇̟̇ͧ̾ͭ̿̆ͯ͡t̬̪̬̑̿͊͊̚h̋͑̈̇͋҉̴͖̜o̴̠̭̯̫̽ͨṳ̡̟͕̝̦͓͖̪̇͢t̬̙̖̝͈͔̻͛͊ ̵̛̗̝̝̰̫̞̠̙̽̄̊͆o̺̮͆ͯ͊͑ͭ̚̕ṙ̶̟̺̜̺̻̘̰͊ͮ͡ḋ̢̰ͦͥe̛̩͍̯̍ͭͩͤͦ̚r͍̾ͯ̊͛͡.̮̙͙̠̦̜̳̋̓ͩ͒̓̒͜͝ ̷͋͢͏̬̤̼T̸̯̞̥ͤ̽͛̈̚͜ȟ̨̌͋͏͚̪̩͚̺͖̠é̻̰̞̣̍̕͟ ̧̩͔̥̘͓̘̽͑̏ͣ͑̓͝N̬̙͈̗͍̣̻̓ͨͫͮ͘͜͡e͍̜̠͓̹̙͓͑͡z̵̙̦̳͓ͭ̑ͮp͒͐҉̹͎̯̰͜ȩ̨̗̝͓̥̳̣̈̽ͧ͋͑ͯ̚͞r̮̖̟̆ͩḑ͍͉͚̪̭͈̮ͮͬͣͭ̽̐̄̓̑͜i̶̪͎̹̰̭͎͋͗ͧ͌͛͜͢a͉̦͇̖͓̰ͣͭ̾͗n̮̞̣̝̤̤͔̊͜ ̧̗͐̊͢h̴͙̳͉̺͕͌̉ͫ͐͒̋͊i̢̳͓̤̖͎̼ͤ̓ͫ̐ͬ̆͌̕͢ṽ͎͉̳̭̭̠̠̬̠͐͊̾͊ȩ̣̺̖̒̏̌͠-Mind of ̑͘҉̯̤̘͕̺͡c̢̭̭̜̙̥͊̓ͤ̍ͨẖ̫̖̆ͪ̌ͭ͞ä̷̫̺̩̘̪͍ͤͫͫ̒ͦ͆͠͡o̥̖̥͚̾̋͋͊ͨ̆s̘͉͔̫̪͕̠̟ͯ̒͋ͦ̒͢.̣̦̦̞ͮͬͩ ̰̦̤̞̹̮̟ͩ̓̓̉͒̏ͫ͢Z̉͘͏̗̮a̧͌͋͛̏͏͏̣̩͍̞l̛̟̥͎ͨ͒̐ͤ͛g̰̣ͫͣ̋͊ô̷̶͕̩͎̳̻̣̯̘̋̊̅ͧ̏ͫ.̴̮̯̺̻̻̣̿ͯ͒ ̣̗ B. ̴͙̼̭̺̙͚̳̪ͨ̈Z̵̶̘̗̩̜̍ͭ̿͒̊ͫA̴̸ͧ̊̚҉̺͖̠͖̜̠̩͇L̶̠̾͗ͦ͐͌ͯͤ̇G̫̞͔̭̻̖̥̜̗͊ͪͦͧ̔ͩ͘͜Õ̷͉͈̖̭̰̪̾ͭͯ͆̚! ̴͙̼̭̺̙͚̳̪ͨ̈ B. ̣̠̥̥̝͓ͯ̒̽̽̒͌̉ͣ͞