Question

我正在尝试创建一个函数，它将从字符串中删除任何文本块。例如，将“（example）somestuff”转换为“somestuff”，从字符串中删除任何被阻止的文本。这是一个大型程序的单个函数，用于根据文件名自动创建目录并将相关文件移动到所述文件夹中。我想我正陷入无休止的循环中，但却因为问题而陷入困境。

startbrackets = '[', '('
endbrackets = ']', ')'
digits = range(0,10)

def striptoname(string):
    startNum = 0
    endNum = 0
    finished = True
    indexBeginList = []
    indexEndList = [] 

    while (finished):
        try:
            for bracket in startbrackets:
                indexBeginList.append(string.find(bracket, 0, len(string)))
        except:
            print "Search Start Bracket Failed"
            wait()
            exit()

        # Testing Code START
        finished = False
        for i in indexBeginList:
            if i != -1:
                finished = True
                startNum = i
                break
        # Testing Code END

        try:
            for bracket in endbrackets:
                indexEndList.append(string.find(bracket, 0, len(string)))
        except:
            print "Search End Bracket Failed"
            wait()
            exit()

        # Testing Code START
        for i in indexEndList:
            if i != -1:
                endNum = i
                break
        # Testing Code END

        if(finished):
            if(startNum == 0):
                string = string[:(endNum+1)]
            else:
                string = string[0:startNum]
    for i in digits:
        string.replace(str(i),"")
    return string

Answer 1

以下是使用re的方法：

import re

def remove_unwanted(s):
    # This will look for a group of any characters inside () or [] and substitute an empty string, "", instead of that entire group.
    # The final strip is to eliminate any other empty spaces that can be leftover outside of the parenthesis.
    return re.sub("((\(|\[).*(\)|\]))", "", s).strip()

print(remove_unwanted("[some text] abcdef"))
>>> "abcdef"
print(remove_unwanted("(example) somestuff"))
>>> "somestuff"

字符串在python中操作

1 个答案: