我有以下字符串：
NoticeText:
NoticeType [str] = USER_TYPING_ON
Text [str] = "user is typing"
EventInfo:
PartyId [int] = 2
EventType [str] = MESSAGE
UserNickname [str] = "Michael"
EventId [int] = 4
Text [str] = "Hey, how are you?"
MsgCheck [str] = NONE
TimeOffset [int] = 23
UserType [str] = AGENT
NoticeText:
NoticeType [str] = USER_TYPING_ON
EventInfo:
PartyId [int] = 1
EventType [str] = MESSAGE
UserNickname [str] = "Bob Smith"
EventId [int] = 6
Text [str] = "I'm good, how are you?"
MsgCheck [str] = NONE
TimeOffset [int] = 28
UserType [str] = CLIENT
MessageType [str] = "text"
我需要能够检索“我很好，你好吗？”的句子。我完全陷入了困境。
我试图在“文本[str] =“之后检索短语，这会返回我所需的内容。但是它还会在“文本[str] =“之后”返回所有其他句子。
一个可能对你们有用的技巧是PartyId [int]字段。 1对应于客户端。我需要那个人的信息。
我只是不知道该如何缩小范围。
请帮忙！
最佳答案
描述^NoticeText:(?:(?!\nNoticeText:).)*\n\s+EventInfo(?:(?!\nNoticeText:).)*\n\s+Text\s*\[str\]\s*=\s*"([^"]*)"(?:(?!\nNoticeText:).)*\nNoticeText:(?:(?!\nNoticeText:).)*\n\s+EventInfo(?:(?!\nNoticeText:).)*\n\s+Text\s*\[str\]\s*=\s*"([^"]*)"(?:(?!\nNoticeText:).)*
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例
现场演示
https://regex101.com/r/tD6uV9/1
示例文本
NoticeText:
NoticeType [str] = USER_TYPING_ON
Text [str] = "user is typing"
EventInfo:
PartyId [int] = 2
EventType [str] = MESSAGE
UserNickname [str] = "Michael"
EventId [int] = 4
Text [str] = "Hey, how are you?"
MsgCheck [str] = NONE
TimeOffset [int] = 23
UserType [str] = AGENT
NoticeText:
NoticeType [str] = USER_TYPING_ON
EventInfo:
PartyId [int] = 1
EventType [str] = MESSAGE
UserNickname [str] = "Bob Smith"
EventId [int] = 6
Text [str] = "I'm good, how are you?"
MsgCheck [str] = NONE
TimeOffset [int] = 28
UserType [str] = CLIENT
MessageType [str] = "text"
比赛样本
捕获组0同时获得两个
NoticeText块捕获组1在第一个
Text [str]中的EventInfo之后获得第一个NoticeText捕获组2在第二个
Text [str]中的PartyID之后获得第二个NoticeTextMATCH 1
Capture Group 1. [246-263] `Hey, how are you?`
Capture Group 2. [566-588] `I'm good, how are you?`
说明
NODE EXPLANATION
----------------------------------------------------------------------
^ the beginning of the string
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
(?: group, but do not capture (0 or more times
(matching the most amount possible)):
----------------------------------------------------------------------
(?! look ahead to see if there is not:
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
) end of look-ahead
----------------------------------------------------------------------
. any character except \n
----------------------------------------------------------------------
)* end of grouping
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
\s+ whitespace (\n, \r, \t, \f, and " ") (1 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
EventInfo 'EventInfo'
----------------------------------------------------------------------
(?: group, but do not capture (0 or more times
(matching the most amount possible)):
----------------------------------------------------------------------
(?! look ahead to see if there is not:
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
) end of look-ahead
----------------------------------------------------------------------
. any character except \n
----------------------------------------------------------------------
)* end of grouping
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
\s+ whitespace (\n, \r, \t, \f, and " ") (1 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
Text 'Text'
----------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
\[ '['
----------------------------------------------------------------------
str 'str'
----------------------------------------------------------------------
\] ']'
----------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
= '='
----------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
( group and capture to \1:
----------------------------------------------------------------------
[^"]* any character except: '"' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
) end of \1
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
(?: group, but do not capture (0 or more times
(matching the most amount possible)):
----------------------------------------------------------------------
(?! look ahead to see if there is not:
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
) end of look-ahead
----------------------------------------------------------------------
. any character except \n
----------------------------------------------------------------------
)* end of grouping
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
(?: group, but do not capture (0 or more times
(matching the most amount possible)):
----------------------------------------------------------------------
(?! look ahead to see if there is not:
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
) end of look-ahead
----------------------------------------------------------------------
. any character except \n
----------------------------------------------------------------------
)* end of grouping
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
\s+ whitespace (\n, \r, \t, \f, and " ") (1 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
EventInfo 'EventInfo'
----------------------------------------------------------------------
(?: group, but do not capture (0 or more times
(matching the most amount possible)):
----------------------------------------------------------------------
(?! look ahead to see if there is not:
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
) end of look-ahead
----------------------------------------------------------------------
. any character except \n
----------------------------------------------------------------------
)* end of grouping
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
\s+ whitespace (\n, \r, \t, \f, and " ") (1 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
Text 'Text'
----------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
\[ '['
----------------------------------------------------------------------
str 'str'
----------------------------------------------------------------------
\] ']'
----------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
= '='
----------------------------------------------------------------------
\s* whitespace (\n, \r, \t, \f, and " ") (0 or
more times (matching the most amount
possible))
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
( group and capture to \2:
----------------------------------------------------------------------
[^"]* any character except: '"' (0 or more
times (matching the most amount
possible))
----------------------------------------------------------------------
) end of \2
----------------------------------------------------------------------
" '"'
----------------------------------------------------------------------
(?: group, but do not capture (0 or more times
(matching the most amount possible)):
----------------------------------------------------------------------
(?! look ahead to see if there is not:
----------------------------------------------------------------------
\n '\n' (newline)
----------------------------------------------------------------------
NoticeText: 'NoticeText:'
----------------------------------------------------------------------
) end of look-ahead
----------------------------------------------------------------------
. any character except \n
----------------------------------------------------------------------
)* end of grouping
----------------------------------------------------------------------
或者
如果这些
NoticeText块的列表很长，则可以使用同一表达式的简化版本将它们全部解析。^NoticeText:(?:(?!\nNoticeText:)[\s\S])*\n\s+Text\s*\[str\]\s*=\s*"([^"]*)"(?:(?!\nNoticeText:)[\s\S])*在此版本中，我正在使用全局标志和多行标志
例
从上方使用相同的示例文本，捕获组0将获得单个
NoticeText，捕获组1仅将块中的最后一个Text [str]值比赛样本
MATCH 1
Capture Group 1. [246-263] `Hey, how are you?`
MATCH 2
Capture Group 1. [566-588] `I'm good, how are you?`
现场演示
https://regex101.com/r/uW6cV6/1