这些是规则
<p>、<ol>或<ul>开头<em>、<strong>或<span style="text-decoration:underline"><strong>将是JSON中的此项{"bold":True},<em>将为{"italics":True},<span style="text-decoration:underline">将为{"decoration":"underline"}{"text": "this is the text"}假设我有下面的HTML :通过使用以下内容:
soup = Soup("THIS IS THE WHOLE HTML", "html.parser")
allTags = [tag for tag in soup.find_all(recursive=False)]它产生这个数组:
[
<p>The name is not mine it is for the people<span style="text-decoration: underline;"><em><strong>stephen</strong></em></span><em><strong> how can</strong>name </em><strong>good</strong> <em>his name <span style="text-decoration: underline;">moneuet</span>please </em><span style="text-decoration: underline;"><strong>forever</strong></span><em>tomorrow<strong>USA</strong></em></p>,
<p>2</p>,
<p><strong>moment</strong><em>Africa</em> <em>China</em> <span style="text-decoration: underline;">home</span> <em>thomas</em> <strong>nothing</strong></p>,
<ol><li>first item</li><li><em><span style="text-decoration: underline;"><strong>second item</strong></span></em></li></ol>
]通过应用上面的规则,这将是结果:
首先,Array元素将被处理到这个JSON中:
{
"text": [
"The name is not mine it is for the people",
{"text": "stephen", "decoration": "underline", "bold": True, "italics": True},
{"text": "how can", "bold": True, "italics": True},
{"text": "name", "italics": True},
{"text": "good", "bold": True},
{"text": "his name", "italics": True},
{"text": "moneuet", "decoration": "underline"},
{"text": "please ", "italics": True},
{"text": "forever", "decoration": "underline", "bold":True},
{"text": "tomorrow", "italics": True},
{"text": "USA", "bold": True, "italics": True}
]
}第二个Array元素将被处理到这个JSON中:
{"text": ["2"] }第三个Array元素将被处理到这个JSON中:
{
"text": [
{"text": "moment", "bold": True},
{"text": "Africa", "italics": True},
{"text": "China", "italics": True},
{"text": "home", "decoration": "underline"},
{"text": "thomas", "italics": True},
{"text": "nothing", "bold": True}
]
}第四个Array元素将被处理到这个JSON中:
{
"ol": [
"first item",
{"text": "second item", "decoration": "underline", "italics": True, "bold": True}
]
},这是我的尝试,所以,我可以钻下去。但是如何处理arrayOfTextAndStyles数组是的问题。
soup = Soup("THIS IS THE WHOLE HTML", "html.parser")
allTags = [tag for tag in soup.find_all(recursive=False)]
for foundTag in allTags:
foundTagStyles = [tag for tag in foundTag.find_all(recursive=True)]
if len(foundTagStyles ) > 0:
if str(foundTag.name) == "p":
arrayOfTextAndStyles = [{"tag": tag.name, "text":
foundTag.find_all(text=True, recursive=False) }] +
[{"tag":tag.name, "text": foundTag.find_all(text=True,
recursive=False) } for tag in foundTag.find_all()]
elif str(foundTag.name) == "ol":
elif str(foundTag .name) == "ul":发布于 2017-09-29 08:09:11
我会使用一个函数来解析每个元素,而不是使用一个巨大的循环。选择p和ol标记,并在解析中引发异常,标记与特定规则不匹配的任何内容:
from bs4 import NavigableString
def parse(elem):
if elem.name == 'ol':
result = []
for li in elem.find_all('li'):
if len(li) > 1:
result.append([parse_text(sub) for sub in li])
else:
result.append(parse_text(next(iter(li))))
return {'ol': result}
return {'text': [parse_text(sub) for sub in elem]}
def parse_text(elem):
if isinstance(elem, NavigableString):
return {'text': elem}
result = {}
if elem.name == 'em':
result['italics'] = True
elif elem.name == 'strong':
result['bold'] = True
elif elem.name == 'span':
try:
# rudimentary parse into a dictionary
styles = dict(
s.replace(' ', '').split(':')
for s in elem.get('style', '').split(';')
if s.strip()
)
except ValueError:
raise ValueError('Invalid structure')
if 'underline' not in styles.get('text-decoration', ''):
raise ValueError('Invalid structure')
result['decoration'] = 'underline'
else:
raise ValueError('Invalid structure')
if len(elem) > 1:
result['text'] = [parse_text(sub) for sub in elem]
else:
result.update(parse_text(next(iter(elem))))
return result然后解析您的文档:
for candidate in soup.select('ol,p'):
try:
result = parse(candidate)
except ValueError:
# invalid structure, ignore
continue
print(result)使用pprint,结果是:
{'text': [{'text': 'The name is not mine it is for the people'},
{'bold': True,
'decoration': 'underline',
'italics': True,
'text': 'stephen'},
{'italics': True,
'text': [{'bold': True, 'text': ' how can'}, {'text': 'name '}]},
{'bold': True, 'text': 'good'},
{'text': ' '},
{'italics': True,
'text': [{'text': 'his name '},
{'decoration': 'underline', 'text': 'moneuet'},
{'text': 'please '}]},
{'bold': True, 'decoration': 'underline', 'text': 'forever'},
{'italics': True,
'text': [{'text': 'tomorrow'}, {'bold': True, 'text': 'USA'}]}]}
{'text': [{'text': '2'}]}
{'text': [{'bold': True, 'text': 'moment'},
{'italics': True, 'text': 'Africa'},
{'text': ' '},
{'italics': True, 'text': 'China'},
{'text': ' '},
{'decoration': 'underline', 'text': 'home'},
{'text': ' '},
{'italics': True, 'text': 'thomas'},
{'text': ' '},
{'bold': True, 'text': 'nothing'}]}
{'ol': [{'text': 'first item'},
{'bold': True,
'decoration': 'underline',
'italics': True,
'text': 'second item'}]}请注意,文本节点现在是嵌套的;这使您能够始终如一地重新创建相同的结构,并具有正确的空格和嵌套的文本装饰。
结构也相当一致;'text'键将指向单个字符串或字典列表。这样的列表永远不会混合类型。您还可以对此进行改进;让'text'只指向一个字符串,并使用一个不同的键来表示嵌套数据,例如contains或nested或类似的,然后只使用其中的一个。所需的只是在'text'情况下和parse()函数中更改parse()键。
https://stackoverflow.com/questions/46483313
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