Python shlex.split()，忽略单引号

Question

在Python语言中，我如何使用shlex.split()或类似的工具来拆分字符串，只保留双引号？例如，如果输入为"hello, world" is what 'i say'，则输出将为["hello, world", "is", "what", "'i", "say'"]。

Answer 1

import shlex

def newSplit(value):
    lex = shlex.shlex(value)
    lex.quotes = '"'
    lex.whitespace_split = True
    lex.commenters = ''
    return list(lex)

print newSplit('''This string has "some double quotes" and 'some single quotes'.''')

Answer 2

您可以使用shlex.quotes控制哪些字符将被视为字符串引号。您还需要修改shlex.wordchars，以保留包含i和say的'。

import shlex

input = '"hello, world" is what \'i say\''
lexer = shlex.shlex(input)
lexer.quotes = '"'
lexer.wordchars += '\''

output = list(lexer)
# ['"hello, world"', 'is', 'what', "'i", "say'"]