Regex不适用于行首或行尾



我试过[^A-Za-z0-9]帐篷[^A-Za-z0-9]。。具有?+*的多种组合

以及类似[^|[^A-Za-z0-9]]帐篷[^A-Za-z0-9]|$]的东西

我想匹配:

  • 注意-否
  • 看看帐篷-是的
  • 帐篷很不错-是的
  • 帐篷什么的-是的
  • 露营、帐篷、户外-是(有些非字母数字分隔符)

如果它让它变得更容易,像"tenting"这样的东西也可以是匹配

我想我看的所有页面都遗漏了一些东西,但我真的被困在这里了。我需要在句子或分隔列表的开头、中间或结尾找到一个搜索词。我需要做多个陈述吗?

我希望有一种方法可以说使用这个表达式,但如果它是行的开始或行的结束

带有w(非字母数字)

SQL> select str
  2    from (select 'attention' str from dual union all
  3          select 'look at the tent' str from dual union all
  4          select 'tent''s are nice' str from dual union all
  5          select 'something tent something' str from dual union all
  6          select 'camping,tent,outdoors' str from dual)
  7   where REGEXP_LIKE(str, '(W|^)tent(W|$)', 'i') ;
STR
------------------------
look at the tent
tent's are nice
something tent something
camping,tent,outdoors
SQL> select str,
  2         case when REGEXP_LIKE(str, '(W|^)tent(W|$)', 'i') then 'YES' else 'NO' end matches
  3    from (select 'attention' str from dual union all
  4          select 'look at the tent' str from dual union all
  5          select 'tent''s are nice' str from dual union all
  6          select 'something tent something' str from dual union all
  7          select 'tent' str from dual union all
  8          select 'camping,tent,outdoors' str from dual);
STR                      MAT
------------------------ ---
attention                NO
look at the tent         YES
tent's are nice          YES
something tent something YES
tent                     YES
camping,tent,outdoors    YES

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