在撇号和连字符之前或之后禁止任何空格

Question

我需要这个要求的详细验证：

1. 接受字母表(a或a)
2. 可能包括这一特殊的查尔(奥塞耶内埃瓦·努伊内勒)*美元
3. 接受空格、撇号和连字符
4. 可以在非空格字符之间使用撇号和连字符，例如：

• Le'brahm
• Ben-John

不能接受Le' brahm、Ben -John或Ben- John

我目前使用此regex，但不能完全填充数字4的要求和数字3的部分。

^[a-zA-Z åçêëèïîìæôöòûùÿáíóúñ]*$

如果我像这样加催眠药

^[a-zA-Z -'åçêëèïîìæôöòûùÿáíóúñ]*$

正则表达式变成错误，它接受数字字符(不应该是)

Answer 1

您可以试试这个正则表达式：

^[a-zA-Zåçêëèïîìæôöòûùÿáíóúñ]+(?:[-' ][a-zA-Zåçêëèïîìæôöòûùÿáíóúñ]+)*$

RegEx演示

RegEx详细信息：

• [a-zA-Zåçêëèïîìæôöòûùÿáíóúñ]+：匹配[...]中给定字母的1+
• (?:[-' ][a-zA-Zåçêëèïîìæôöòûùÿáíóúñ]+)*：匹配由-、'或空格分隔的同一组字符中的0或多个。

Answer 2

使用观景台：

^(?!.*[-'‘’ ]{2})(?![-'‘’ ])(?!.*[-'‘’ ]$)[a-zA-Zåçêëèïîìæôöòûùÿáíóúñ '‘’-]+$

见证明。

解释

--------------------------------------------------------------------------------
  ^                        the beginning of the string
--------------------------------------------------------------------------------
  (?!                      look ahead to see if there is not:
--------------------------------------------------------------------------------
    .*                       any character except \n (0 or more times
                             (matching the most amount possible))
--------------------------------------------------------------------------------
    [-‘’' ]{2}               any character of: '-', ''', ' ', '‘', '’' (2
                             times)
--------------------------------------------------------------------------------
  )                        end of look-ahead
--------------------------------------------------------------------------------
  (?!                      look ahead to see if there is not:
--------------------------------------------------------------------------------
    [-'‘’ ]                    any character of: '-', ''', ' ', '‘', '’'
--------------------------------------------------------------------------------
  )                        end of look-ahead
--------------------------------------------------------------------------------
  (?!                      look ahead to see if there is not:
--------------------------------------------------------------------------------
    .*                       any character except \n (0 or more times
                             (matching the most amount possible))
--------------------------------------------------------------------------------
    [-'‘’ ]                    any character of: '-', ''', ' ', '‘', '’'
--------------------------------------------------------------------------------
    $                        before an optional \n, and the end of
                             the string
--------------------------------------------------------------------------------
  )                        end of look-ahead
--------------------------------------------------------------------------------
  [a-zA-                    any character of: 'a' to 'z', 'A' to 'Z',
  Zåçêëèïîìæôöòûùÿáíóú     'å', 'ç', 'ê', 'ë', 'è', 'ï', 'î', 'ì',
  ñ '‘’-]+                   'æ', 'ô', 'ö', 'ò', 'û', 'ù', 'ÿ', 'á',
                           'í', 'ó', 'ú', 'ñ', ' ', ''', '-', '‘', '’' (1 or
                           more times (matching the most amount
                           possible))
--------------------------------------------------------------------------------
  $                        before an optional \n, and the end of the
                           string