Rendering newlines in user-submitted content (Python web app)

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死守一世寂寞 2020-12-11 23:20

I have a web.py app that takes input from a textarea and inputs it to a database. I can get the information from the database and post it to the page but the NEWLINES are g

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情深已故 (楼主)

2020-12-12 00:06

Instead of using using the inserted text which is not html and therefore will not be displayed as html (\r\n is not a "p" tag etc), you could use a formatting language like markdown (as you mentioned).

Otherwise you will need to replace/parse the entered text manually (which I think is not a good idea, because languages like markdown have been invented for this).

There are some good python libraries to convert markdown (the data you store in database) to html, like python-markdown2.

It's really easy to use, see the examples from the python-markdown link:

>>> import markdown2
>>> markdown2.markdown("*boo!*")  # or use `html = markdown_path(PATH)`
u'boo!\n'

>>> markdowner = Markdown()
>>> markdowner.convert("*boo!*")
u'boo!\n'
>>> markdowner.convert("**boom!**")
u'boom!\n'

This forces you to enter the content using markdown syntax (or whatever format you use). To make this easier, you could use an wysiwyg-editor that creates the markdown for you (like the editor here on Stackoverflow). I think Stackoverflow uses wmd but there are a lot of other markdown wysiwyg editors.

Example for wmd:


    
        WMD Example using jquery
        

        
        
    
    
        WMD Example using jquery
        
                    </div>

        <script type="text/javascript">
            $().ready(function() {
               $("#notes").wmd(); 
            });
        </script>
    </body>
</html>
</code></pre>
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