创建！ENTITY定义 [英] creation of !ENTITY definition

问题描述

使用python lxml如何创建！ENTITY定义，请注意，我想创建而不是解析.

With python lxml how can I create a !ENTITY definition, Note I want to create rather than parse.

那是我想创建一些包含另一个文件的 xml，因此需要一个 !ENTITY 定义

That is I want to create some xml that has an include of another file, hence the need for an !ENTITY definition

推荐答案

您应该能够将doctype声明(带有具有ENTITY声明的内部子集)创建为字符串，并在序列化时传递它(使用tostring()或write()).

You should be able to create the doctype declaration, with the internal subset that has the ENTITY declaration, as a string and pass that when you serialize (with tostring() or write()).

示例...

from lxml import etree

doctype = """<!DOCTYPE doc [
<!ENTITY ent SYSTEM "another_doc.xml">
]>"""

doc = etree.Element("doc")
ent = etree.Entity("ent")
doc.append(ent)

print(etree.tostring(doc, doctype=doctype).decode())

打印...

<!DOCTYPE doc [
<!ENTITY ent SYSTEM "another_doc.xml">
]>
<doc>&ent;</doc>

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