Following POSIX Regular Expression will be needed commonly while developing application,
ALPHA_REG_EXPRESSION = "[a-zA-Z ]*"
ALPHA_UNDERSCORE_REG_EXPRESSION = "[a-zA-Z_ ]*"
ALPHA_NUMERIC_REG_EXPRESSION = "[a-zA-Z0-9 ]*"
ALPHA_NUMERIC_UNDERSCORE_REG_EXPRESSION = "[a-zA-Z0-9_ ]*"
ALPHA_NUMERIC_UNDERSCORE_DASH_REG_EXPRESSION = "[a-zA-Z0-9_[-] ]*"
DECIMAL_REG_EXPRESSION = "[0-9]*[.][0-9]*"
INTEGER_REG_EXPRESSION = "([1-9][0-9]*)|0"
ADDRESS_REG_EXPRESSION = "[,.#_a-zA-Z0-9- ]*"
IP_REG_EXPRESSION = "(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)"
EMAIL_REG_EXPRESSION = "[a-zA-Z0-9._]*@[a-zA-Z0-9 ]*.[a-zA-Z]*"
EMAIL_REG_EXPRESSION = "\\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}\\b"
MAC_REG_EXPREESION = "([0-9a-fA-F][0-9a-fA-F]-){5}([0-9a-fA-F][0-9a-fA-F])"
MAC_REG_EXPREESION = "[0-9A-Fa-f[-] ]*"
ZIPCODE_REG_EXPRESSION = "([0-9a-zA-Z]{5})|([0-9a-zA-Z]{7})|([0-9a-zA-Z]{9})|([0-9a-zA-Z]{11})"
NUMERIC_DASH_REG_EXPRESSION = "[0-9- ]*"
