python-markdown-discuss

[Python-markdown-discuss] Limit parser to a subset of the syntax

[Hernâni C. <he...@dz...>]

Hello,

Is there anyway to limit the markdown to html conversion to a small 
subset of the markdown syntax? Let's say I want to allow only italics, 
bolds and links, is that possible?

Thanks in advance
Hernani

Re: [Python-markdown-discuss] Limit parser to a subset of the syntax

[Tom R. <to...@ri...>]

This isn't the best solution, but I disable images by using this extension:

import markdown
from markdown import etree

class DisableImagesExtension(markdown.Extension):
    def extendMarkdown(self, md, md_globals):
        md.treeprocessors.add('disableImages', DisableImages(md), '_end')

class DisableImages(markdown.treeprocessors.Treeprocessor):
    def descendRemove(self, element):
        for i in element:
            if i.tag == 'img':
                element.remove(i)
            else:
                self.descendRemove(i)
    def run(self, root):
        self.descendRemove(root)
        return root


-tom

Re: [Python-markdown-discuss] Limit parser to a subset of the syntax

[Waylan L. <wa...@gm...>]

On Tue, May 4, 2010 at 8:08 PM, Tom Ritter <to...@ri...> wrote:
> This isn't the best solution, but I disable images by using this extension:
>
> import markdown
> from markdown import etree
>
> class DisableImagesExtension(markdown.Extension):
>    def extendMarkdown(self, md, md_globals):
>        md.treeprocessors.add('disableImages', DisableImages(md), '_end')
>
> class DisableImages(markdown.treeprocessors.Treeprocessor):
>    def descendRemove(self, element):
>        for i in element:
>            if i.tag == 'img':
>                element.remove(i)
>            else:
>                self.descendRemove(i)
>    def run(self, root):
>        self.descendRemove(root)
>        return root
>

How about this:

    import markdown

    class DisableImagesExtension(markdown.Extension):
        def extendMarkdown(self, md, md_globals):
            del md.inlinePatterns["link"]
            del md.inlinePatterns["image_reference"]

That's it. The image syntax will not never be parsed - which is more
of a markdown type behavior.  Any unrecognized syntax should go
through unaltered. The names of all the patterns and processors can be
found where they are added in the` Markdown.__init__` method of the
`markdown/__init__.py` file.

-- 
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\X/ /-\ `/ |_ /-\ |\|
Waylan Limberg

Re: [Python-markdown-discuss] Limit parser to a subset of the syntax

[Waylan L. <wa...@gm...>]

See the documentation for writing extensions[1]. Using that API, you
can alter any part of the parser. Simply remove the processors and
patterns that you do not want. See the section on OrderedDict for how
to do that.

[1]: http://www.freewisdom.org/projects/python-markdown/Writing_Extensions

2010/5/4 Hernâni Cerqueira <he...@dz...>:
> Hello,
>
> Is there anyway to limit the markdown to html conversion to a small
> subset of the markdown syntax? Let's say I want to allow only italics,
> bolds and links, is that possible?
>
> Thanks in advance
> Hernani
>
> ------------------------------------------------------------------------------
> _______________________________________________
> Python-markdown-discuss mailing list
> Pyt...@li...
> https://lists.sourceforge.net/lists/listinfo/python-markdown-discuss
>



-- 
----
\X/ /-\ `/ |_ /-\ |\|
Waylan Limberg