我正在使用正则表达式查找匹配的模式。但是不知何故我找不到所有的职业。
我需要匹配模式的输入文件(请注意,这是一个示例文件,实际上只有3次出现-它具有多个Occrences):
aaa-233- hi, how are you?
aaa-234- 6(-8989)
aaa-235- 123
end
所以,我希望我的输出是
hi, how are you?
6(-8988)
123
我的正则表达式是
aaa\\-[A-Za-z0-9,->#]\\-(.+?)(aaa)
伪代码
Output= matcher.group(2);
如何使逻辑从aaa开始读取并结束遇到aaa或结束的逻辑。
采用
(?sm)^aaa-[^-]+-.*?(?=\naaa|\nend|\z)
见证明
说明
EXPLANATION
--------------------------------------------------------------------------------
(?ms) set flags for this block (with ^ and $
matching start and end of line) (with .
matching \n) (case-sensitive) (matching
whitespace and # normally)
--------------------------------------------------------------------------------
^ the beginning of a "line"
--------------------------------------------------------------------------------
aaa- 'aaa-'
--------------------------------------------------------------------------------
[^-]+ any character except: '-' (1 or more times
(matching the most amount possible))
--------------------------------------------------------------------------------
- '-'
--------------------------------------------------------------------------------
.*? any character (0 or more times (matching
the least amount possible))
--------------------------------------------------------------------------------
(?= look ahead to see if there is:
--------------------------------------------------------------------------------
\n '\n' (newline)
--------------------------------------------------------------------------------
aaa 'aaa'
--------------------------------------------------------------------------------
| OR
--------------------------------------------------------------------------------
\n '\n' (newline)
--------------------------------------------------------------------------------
end 'end'
--------------------------------------------------------------------------------
| OR
--------------------------------------------------------------------------------
\z the end of the string
--------------------------------------------------------------------------------
) end of look-ahead
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我来说两句