在 Python 中解析自定义文本文件 [英] Parse a custom text file in Python

问题描述

我有一段文字要解析，这是文字的简明形式.

I have a text to be parsed, this is a concise form of the text.

apple {
    type=fruit
    varieties {
        color=red
        origin=usa
    }
}

输出应该如下图

apple.type=fruit
apple.varieties.color=red
apple.varieties.origin=usa

到目前为止，我想出的唯一方法是 Python 中的一种广度优先方法.但我不知道如何让所有的孩子都进去.

So far the only thing I have come up with is a sort of breadth-first approach in python. But I cant figure out how to get all the children within.

progInput = """apple {
    type=fruit
    varieties {
        color=red
        origin=usa
    }
}
"""
progInputSplitToLines = progInput.split('\n')
childrenList = []
root = ""

def hasChildren():
    if "{" in progInputSplitToLines[0]:
        global root
        root = progInputSplitToLines[0].split(" ")[0]
    for e in progInputSplitToLines[1:]:
        if "=" in e:
            childrenList.append({e.split("=")[0].replace("    ", ""),e.split("=")[1].replace("    ", "")})
hasChildren()

PS:我研究了 Python 中的树结构，发现了 anytree(https://anytree.readthedocs.io/en/latest/)，你认为这对我有帮助吗?

PS: I looked into tree structures in Python and came across anytree (https://anytree.readthedocs.io/en/latest/), do you think it would help in my case?

你能帮我一下吗?我不太擅长解析文本.提前感谢一堆.:)

Would you please be able to help me out ? I'm not very good at parsing text. thanks a bunch in advance. :)

推荐答案

由于您的文件是 HOCON 格式，您可以尝试使用 pyhocon HOCON 解析器模块来解决您的问题.

Since your file is in HOCON format, you can try using the pyhocon HOCON parser module to solve your problem.

安装:要么运行 pip install pyhocon，要么下载 github 存储库并使用 python setup.py install 执行手动安装.

Install: Either run pip install pyhocon, or download the github repo and perform a manual install with python setup.py install.

基本用法:

from pyhocon import ConfigFactory

conf = ConfigFactory.parse_file('text.conf')

print(conf)

给出以下嵌套结构:

ConfigTree([('apple', ConfigTree([('type', 'fruit'), ('varieties', ConfigTree([('color', 'red'), ('origin', 'usa')]))]))])

ConfigTree 只是一个 collections.OrderedDict()，如在源代码.

更新:

为了得到你想要的输出，你可以制作自己的递归函数来收集所有路径:

To get your desired output, you can make your own recursive function to collect all paths:

from pyhocon import ConfigFactory
from pyhocon.config_tree import ConfigTree

def config_paths(config):
    for k, v in config.items():
        if isinstance(v, ConfigTree):
            for k1, v1 in config_paths(v):
                yield (k,) + k1, v1
        else:
            yield (k,), v

config = ConfigFactory.parse_file('text.conf')
for k, v in config_paths(config):
    print('%s=%s' % ('.'.join(k), v))

输出:

apple.type=fruit
apple.varieties.color=red
apple.varieties.origin=usa

这篇关于在 Python 中解析自定义文本文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！