Question

我在这里制作了一个正则表达式以显示我的问题： https://regex101.com/r/zV2oL1/1

前两行是正常的，但是当该行在末尾附近有一个“ - ”时，它不应该匹配，就像在这种情况下：第三行。

WILD CARROT - POTATOE 1 PIE 2
WILD CARROT - POTATOE 1 PIE 2 OK
WILD CARROT - POTATOE 1 PIE 2 - NOT OK

我不明白为什么要结束我的正则表达式：

($|[^-])

不起作用。

更新要清楚，只有前两行应匹配

Answer 1

尝试类似：

IF REGEXP_LIKE(subject, '.*?POTATOE.*?\d.*?PIE.*?\d', 'im') THEN
    -- Successful match
ELSE
    -- Match attempt failed
END IF;

说明：

.*?POTATOE.*?\d.*?PIE.*?\d

Options: Case insensitive; Exact spacing; Dot doesn't match line breaks; ^$ match at line breaks

Match any single character that is NOT a line break character (line feed) «.*?»
   Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the character string “POTATOE” literally (case insensitive) «POTATOE»
Match any single character that is NOT a line break character (line feed) «.*?»
   Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match a single character that is a “digit” (any decimal number in any Unicode script) «\d»
Match any single character that is NOT a line break character (line feed) «.*?»
   Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the character string “PIE” literally (case insensitive) «PIE»
Match any single character that is NOT a line break character (line feed) «.*?»
   Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match a single character that is a “digit” (any decimal number in any Unicode script) «\d»

Answer 2

你的正则表达式正在检查行结尾$或字符串中不是-的字符（因为坏字符串的结尾是匹配的）行和不是-的字符。要匹配任何地方没有-的字符串，请使用：
^[^-]*$
要匹配行尾没有字符-的字符串，请使用：
[^-]$
我希望这有帮助！

Answer 3

也许是这样的

.*POTATOE.*?\d.*?PIE.*?\d[^\-]*$

Answer 4

您可以尝试：

^.*POTATOE.*?\d.*?PIE \d[^-]*$

将“m”和“g”修饰符放在一起。导致：

/^.*POTATOE.*?\d.*?PIE \d[^-]*$/mg

正则表达式，行尾或其他字符而不是＆＃34; - ＆＃34;

4 个答案: