描述

Question

我正在尝试编写正则表达式以匹配作为sql过程调用的参数传递的所有单词。

输入ex：

exec GetNextSequence 'abc', @brokerId out, 'fds'
insert into [ttt](id, code, description, startDate, endDate)
values (@bid, @code, @code, getdate(), '099999')
....

所以我需要得到'abc'和'fds'。

你能帮我写一下正则表达式，让它们介于“EXEC（UTE）？”之间吗？和第一个关键字？我拥有的关键字列表，所以如果你帮我使用INSERT就可以了，我会替换它。

Answer 1

try this：

exec \w+ (?:.*?'(?<quotedWord>\w+)')+

＆＃39; exec 命令之后的任何单引号值＆＃39;将被捕获。

（注意：regexr101不能记住重复的匹配组捕获，但是.NET does）

Answer 2

描述

此正则表达式将执行以下操作：

匹配exec关键字
其他行上的其他字词将被忽略
允许源字符串全部在一行上。

备注

您必须小心使用insert作为锚点。考虑这个字符串边缘情况：exec GetNextSequence 'abc', @Insert, @brokerId out, 'fds'

无限外观(?<=^exec.*?)假设您正在使用.net Regex引擎，因为许多语言不支持外观中的重复字符。

正则表达式

(?<=^exec.*?)'((?:(?!'|\n).)*)'

解释

NODE EXPLANATION -------------------------------------------------------------------------------- (?<= look behind to see if there is: -------------------------------------------------------------------------------- ^ the beginning of the string -------------------------------------------------------------------------------- exec 'exec' -------------------------------------------------------------------------------- .*? any character except \n (0 or more times (matching the least amount possible)) -------------------------------------------------------------------------------- ) end of look-behind -------------------------------------------------------------------------------- ' single quote character -------------------------------------------------------------------------------- ( group and capture to \1: -------------------------------------------------------------------------------- (?: group, but do not capture (0 or more times (matching the most amount possible)): -------------------------------------------------------------------------------- (?! look ahead to see if there is not: -------------------------------------------------------------------------------- ' single quote character -------------------------------------------------------------------------------- | OR -------------------------------------------------------------------------------- \n '\n' (newline) -------------------------------------------------------------------------------- ) end of look-ahead -------------------------------------------------------------------------------- . any character -------------------------------------------------------------------------------- )* end of grouping -------------------------------------------------------------------------------- ) end of \1 -------------------------------------------------------------------------------- ' single quote character

实施例

示例文字

exec GetNextSequence 'abc', @brokerId out, 'fds' insert into [ttt](id, code, description, startDate, endDate) values (@bid, @code, @code, getdate(), '099999')

样本捕获组

[0][0] = 'abc' [0][1] = abc [1][0] = 'fds' [1][1] = fds

正则表达式匹配qoutes

2 个答案:

描述

解释

实施例