REGEX匹配如果字符串包含新行或不包含（多行）
我正在尝试解析其中一些是单行日志的日志文件，有些是多行的。我的正则是单行的正则效果不错，但对多线效果不佳。
^(?<timestamp>\d+-\d+-\d+T\d+:\d+:\d+\.\d+(\+|-)\d+:\d+)\s+\[(?<severity>\w+)\](?<message>.*)$
这是比赛失败的地方，因为它在新行之后未检测到字符串。
2022-06-27T15:22:35.508+00:00 [Info] New settings received:
{"indexer.settings.compaction.days_of_week":"Sunday,Monday"}
新行应包括在“消息”组中，直到它检测到新的时间戳为止。
我尝试了多种方法，以包括要匹配的新线，但尚未找到任何解决方案。我在链接中粘贴了两种日志格式： https://regex101.com/r/r/r/ftj3uz/1 < /a>。
I am trying to parse log files where some of them are single line logs, some are multiline. The regex I have works fine for single lines but not for multi-lines.
^(?<timestamp>\d+-\d+-\d+T\d+:\d+:\d+\.\d+(\+|-)\d+:\d+)\s+\[(?<severity>\w+)\](?<message>.*)$
This is where the match is failing because it does not detect the string after the new line.
2022-06-27T15:22:35.508+00:00 [Info] New settings received:
{"indexer.settings.compaction.days_of_week":"Sunday,Monday"}
The new line should be included in the "message" group until it detects a new timestamp.
I tried multiple approaches to include the newline to be matched but didn't find any solution yet. I have pasted both log formats in the link: https://regex101.com/r/ftJ3UZ/1.
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如果支持lookahead，则可以在
消息组中放置一个可选的重复组，该组检查下一行是否不以Datelike模式开头或完整的时间戳。If a lookahead is supported, you can put an optional repeating group in the
messagegroup checking that the next line does not start with a datelike pattern, or the full timestamp.Regex demo
看来这是匹配的：
我已删除
$，并添加了\ n（？：{。代码> {}括号。It seems this would match:
I've removed
$and added\n(?:{.*})?to the end to be able to match optional part inside{}braces.