有没有办法将 NavigableString 对象中的文本替换为 beautifulsoup 中的标记对象？答案

【问题标题】：Is there a way to replace text in NavigableString object to tag object in beautifulsoup?有没有办法将 NavigableString 对象中的文本替换为 beautifulsoup 中的标记对象？
【发布时间】：2021-08-24 17:20:28
【问题描述】：

我有一个示例 html 文档。

html_doc = '''<html><body><div>
<h5>This is my heading 1</h5>
<p>I have some content here</p>
I am point one.\n\nI am point two.
<h5>Some more text here</h5> Some more text outside a tag.</div></body></html>'''

我正在尝试从 html 标签之外的第 4 行和第 5 行中提取文本并将其转换为 p 标签元素。这个我试过了-

from bs4.element import NavigableString
soup = BeautifulSoup(html_doc, 'html.parser')
div_tags = soup.div

for idx in range(len(div_tag.contents)):
    if type(div_tag.contents[idx]) == NavigableString:
        count = 0
        for a_str in div_tag.contents[idx].split('\n'):
            if a_str == '':
                continue
            else:
                count +=1
                tag = parsed_html.new_tag("p")
                tag.string = a_str
                div_tag.contents[idx+count].insert_before(tag)

使用上面的代码，我无法将最后一个 NavigableString 转换为 p 标签。此外， NavigableString 的先前文本保留在树中。但所需的输出是 -

<html><body><div>
<h5>This is my heading 1</h5>
<p>I have some content here</p>
<p>I am point one.<\p>
<p>I am point two.<\p>
<h5>Some more text here</h5>
<p>Some more text outside a tag.
</p></div></body></html>

【问题讨论】：

标签： python html beautifulsoup

【解决方案1】：

您可以使用此示例将 html 标记之外的所有行包装到 <p>...</p>：

from bs4 import BeautifulSoup, NavigableString

html_doc = """<html><body><div>
<h5>This is my heading 1</h5>
<p>I have some content here</p>
I am point one.\n\nI am point two.
<h5>Some more text here</h5> Some more text outside a tag.</div></body></html>"""

soup = BeautifulSoup(html_doc, "html.parser")

# root tag of the text:
root_tag = soup.find("div")

# replace all strings that are "outside" in the root tag:
for c in root_tag.contents:
    if isinstance(c, NavigableString) and c.strip():
        to_replace = [
            "<p>{}</p>".format(line)
            for line in map(str.strip, c.split("\n"))
            if line
        ]

        c.replace_with(
            BeautifulSoup("\n" + "\n".join(to_replace) + "\n", "html.parser")
        )

print(soup)

打印：

<html><body><div>
<h5>This is my heading 1</h5>
<p>I have some content here</p>
<p>I am point one.</p>
<p>I am point two.</p>
<h5>Some more text here</h5>
<p>Some more text outside a tag.</p>
</div></body></html>

【讨论】：