使用Python RegEx解析文本re.findall

Question

我有一个很长的字符串，需要按组进行解析，但是需要对其进行更多控制。

import re

RAW_Data = "Name Multiple Words Testing With 1234 Numbers and this stuff* ((Bla Bla Bla (Bla Bla) A40 & A41)) Name Multiple Words Testing With 3456 Numbers and this stuff2* ((Bla Bla Bla (Bla Bla) A42 & A43)) Name Multiple Words Testing With 78910 Numbers and this stuff3* ((Bla Bla Bla (Bla Bla) A44 & A45)) Name Multiple Words Testing With 1234 Numbers and this stuff4* ((Bla Bla Bla (Bla Bla) A46 & A47)) Name Multiple Words Testing With 1234 Numbers and this stuff5* ((Bla Bla Bla (Bla Bla) A48 & A49)) Name Multiple Words Testing With 1234 Numbers and this stuff6* ((Bla Bla Bla (Bla Bla) A50 & A51)) Name Multiple Words Testing With 1234 Numbers and this stuff7* ((Bla Bla Bla (Bla Bla) A52 & A53)) Name Multiple Words Testing With 1234 Numbers and this stuff8* ((Bla Bla Bla (Bla Bla) A54 & A55)) Name Multiple Words Testing With 1234 Numbers and this stuff9* ((Bla Bla Bla (Bla Bla) A56 & A57)) Name Multiple Words Testing With 1234 Numbers and this stuff10* ((Bla Bla Bla (Bla Bla) A58 & A59)) Name Multiple Words Testing With 1234 Numbers and this stuff11* ((Bla Bla Bla (Bla Bla) A60 & A61)) Name Multiple Words Testing With 1234 Numbers and this stuff12* ((Bla Bla Bla (Bla Bla) A62 & A63)) Name Multiple Words Testing With 1234 Numbers and this stuff13* ((Bla Bla Bla (Bla Bla) A64 & A65)) Name Multiple Words Testing With 1234 Numbers and this stuff14* ((Bla Bla Bla (Bla Bla) A66 & A67)) Name Multiple Words Testing With 1234 Numbers and this stuff15* ((Bla Bla Bla (Bla Bla) A68 & A69)) Name Multiple Words Testing With 1234 Numbers and this stuff16*"

fromnode = re.findall('(.*?)(?=\*\s)', RAW_Data)

print fromnode

del fromnode
del RAW_Data

结果是：“使用1234数字和此内容命名多个单词测试”，“，”（（（Bla Bla Bla（Bla Bla）A40和A41））使用3456个数字和此东西命名多个单词测试...”。 .... 等等。

我似乎无法只捕获诸如“使用3456数字和这个东西进行多个单词命名测试”之类的字符串，而忽略诸如“（（（Bla Bla Bla（Bla Bla）A40＆A41））”之类的所有字符串。 任何帮助将非常感激。

Answer 1

您可以与

r'\*\s*\({2}.*?\){2}\s*'

模式（ 请参见demo ）匹配：

• \\* -文字星号
• \\s* -零个或多个空格
• \\({2} -正好2个括号
• .*? -除换行符以外的零个或多个字符（注意：如果需要跨几行匹配，请添加re.S标志），直到第一行为re.S
• \\){2} -双右括号
• \\s* -0+空格。

还： 相同，但展开（因此，效率更高）regex ：

\*\s*\({2}[^)]*(?:\)(?!\))[^)]*)*\){2}\s*

请参阅IDEONE演示 ：

import re
p = re.compile(r'\*\s*\({2}.*?\){2}\s*')
test_str = "Name Multiple Words Testing With 1234 Numbers and this stuff* ((Bla Bla Bla (Bla Bla) A40 & A41)) Name Multiple Words Testing With 3456 Numbers and this stuff2* ((Bla Bla Bla (Bla Bla) A42 & A43)) Name Multiple Words Testing With 78910 Numbers and this stuff3* ((Bla Bla Bla (Bla Bla) A44 & A45)) Name Multiple Words Testing With 1234 Numbers and this stuff4* ((Bla Bla Bla (Bla Bla) A46 & A47)) Name Multiple Words Testing With 1234 Numbers and this stuff5* ((Bla Bla Bla (Bla Bla) A48 & A49)) Name Multiple Words Testing With 1234 Numbers and this stuff6* ((Bla Bla Bla (Bla Bla) A50 & A51)) Name Multiple Words Testing With 1234 Numbers and this stuff7* ((Bla Bla Bla (Bla Bla) A52 & A53)) Name Multiple Words Testing With 1234 Numbers and this stuff8* ((Bla Bla Bla (Bla Bla) A54 & A55)) Name Multiple Words Testing With 1234 Numbers and this stuff9* ((Bla Bla Bla (Bla Bla) A56 & A57)) Name Multiple Words Testing With 1234 Numbers and this stuff10* ((Bla Bla Bla (Bla Bla) A58 & A59)) Name Multiple Words Testing With 1234 Numbers and this stuff11* ((Bla Bla Bla (Bla Bla) A60 & A61)) Name Multiple Words Testing With 1234 Numbers and this stuff12* ((Bla Bla Bla (Bla Bla) A62 & A63)) Name Multiple Words Testing With 1234 Numbers and this stuff13* ((Bla Bla Bla (Bla Bla) A64 & A65)) Name Multiple Words Testing With 1234 Numbers and this stuff14* ((Bla Bla Bla (Bla Bla) A66 & A67)) Name Multiple Words Testing With 1234 Numbers and this stuff15* ((Bla Bla Bla (Bla Bla) A68 & A69)) Name Multiple Words Testing With 1234 Numbers and this stuff16*"
print(re.split(p, test_str))

更新

与re.findall一起使用的正则表达式：

(?:\*\s*\(\([^)]*(?:\)(?!\))[^)]*)*\)\))?\s*([^*]*(?:\*(?!\s*\(\()[^*]*)*)\s*

见正则表达式演示

惊呆了吗？ 它只是更简单的(?:\\*\\s*\\(\\(.*?\\)\\))?\\s*(.*?(?=\\*\\s*(?:\\(\\(|$))) 。

请参阅IDEONE演示 。