Question

我创建了一个从csv输入呈现pdf文件的模板。但是，当csv输入字段包含用户格式，包含换行符和缩进时，它会与rst2pdf格式引擎混淆。有没有办法以不破坏文档流的方式一致地处理用户输入，还保持输入文本的格式？下面的示例脚本：

from mako.template import Template
from rst2pdf.createpdf import RstToPdf

mytext = """This is the first line
Then there is a second
Then a third
   This one could be indented

I'd like it to maintain the formatting."""

template = """
My PDF Document
===============

It starts with a paragraph, but after this I'd like to insert `mytext`. 
It should keep the formatting intact, though I don't know what formatting to expect.

${mytext}

"""

mytemplate = Template(template)
pdf = RstToPdf()
pdf.createPdf(text=mytemplate.render(mytext=mytext),output='foo.pdf')

我尝试在模板中添加以下函数，以便在每行的开头插入|，但这似乎也不起作用。

<%!
def wrap(text):
    return text.replace("\\n", "\\n|")
%>

然后${mytext}将成为|${mytext | wrap}。这会引发错误：

<string>:10: (WARNING/2) Inline substitution_reference start-string without end-string.

Answer 1

实际上事实证明我在正确的轨道上，我只需要|和文本之间的空格。所以下面的代码可以工作：

from mako.template import Template
from rst2pdf.createpdf import RstToPdf

mytext = """This is the first line
Then there is a second
Then a third
    How about an indent?

I'd like it to maintain the formatting."""

template = """
<%!
def wrap(text):
    return text.replace("\\n", "\\n| ")
%>

My PDF Document
===============

It starts with a paragraph, but after this I'd like to insert `mytext`. 
It should keep the formatting intact.

| ${mytext | wrap}

"""

mytemplate = Template(template)
pdf = RstToPdf()
#print mytemplate.render(mytext=mytext)
pdf.createPdf(text=mytemplate.render(mytext=mytext),output='foo.pdf')

使用mako和rst2pdf维护导入文本的格式

1 个答案: