python - 使用 awk/sed 脚本提取函数参数

Question

我有 Python 代码，我想从中提取 HTTP 参数。

在以下内容中：我怎样才能不理会这些def行，但从剩余的行中只保留可能在一行中params['...']有多个的内容：params['...']

输入：

def delete_bazooka (request):
    BType.objects.get(id=params['id']).delete()
    BType.objects.get(name=params['name']).delete()
def create_bazooka (request):
  s = Skill.objects.get(id=params['skill'])
  l = Level.objects.get(id=params['level'])
  bt = BType.objects.get(name=params['type'])
  b = Bazooka(type=qt, bin=b, bin_sequence=b.count, text=params['text'], explanation=params['chocolate'], passage=p)
def delete_hoop (request):
  h = Hoop.objects.get(id=params['id'])

期望的输出：

def delete_bazooka (request):
id
name
def create_bazooka (request):
skill
level
type
text chocolate
def delete_hoop (request):
id

Answer 1

您可以将grep` 与 E（正则表达式）和 o（仅匹配）标志一起使用：

grep -Eo "(?def .*|'[a-z]+')" test.txt

Answer 2

使用awk

awk -F\' '{$0=/^def/?$0:$2" "$4}1' test.txt