regex 正则表达式帮助要求连续2行中的第一个单词

hfyxw5xn 于 2022-11-18 发布在其他

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我需要一个正则表达式为以下示例文本：

Doe printing and typesetting industry.
Name Ipsum has been the industry's standard.

正则表达式必须根据其下一行中的固定“Name”字符串得出“Doe”（可以是任何其他名称或单词）。这两个单词都是该行的第一个单词。
这个正则表达式给我每一行的第一个单词，但需要帮助检查“名称”：

(^\w+)

regex

来源：https://stackoverflow.com/questions/70794556/regex-help-requested-first-words-in-2-consecutive-lines

2条答案

按热度按时间

ajsxfq5m1#

用途

^(\S+)(?=.*\r?\nName\b)

请参阅regex proof。

说明

--------------------------------------------------------------------------------
  ^                        the beginning of the string
--------------------------------------------------------------------------------
  (                        group and capture to \1:
--------------------------------------------------------------------------------
    \S+                      non-whitespace (all but \n, \r, \t, \f,
                             and " ") (1 or more times (matching the
                             most amount possible))
--------------------------------------------------------------------------------
  )                        end of \1
--------------------------------------------------------------------------------
  (?=                      look ahead to see if there is:
--------------------------------------------------------------------------------
    .*                       any character except \n (0 or more times
                             (matching the most amount possible))
--------------------------------------------------------------------------------
    \r?                      '\r' (carriage return) (optional
                             (matching the most amount possible))
--------------------------------------------------------------------------------
    \n                       '\n' (newline)
--------------------------------------------------------------------------------
    Name                     'Name'
--------------------------------------------------------------------------------
    \b                       the boundary between a word char (\w)
                             and something that is not a word char
--------------------------------------------------------------------------------
  )                        end of look-ahead

赞(0）回复(0）举报 2022-11-18

q7solyqu2#

请尝试：