CSS in IPython display with XML

[Jonathan Robie]

I am writing some notebooks for processing Greek syntax trees using XPath / XQuery:

https://github.com/biblicalhumanities/greek-new-testament/blob/master/labnotes/basex-tutorial.ipynb

https://github.com/biblicalhumanities/greek-new-testament/blob/master/labnotes/lxml-tutorial.ipynb

I can pretty print the XML like this:

from pygments import highlight
from pygments.lexers import XmlLexer
from pygments.formatters import HtmlFormatter
import IPython

def xml_display(xml):
    formatter = HtmlFormatter()
    display(
        IPython.display.HTML('<style type="text/css">{}</style>{}'.format (
            formatter.get_style_defs('.highlight'),
            highlight(xml, XmlLexer(), formatter))))

def xquery_display(query):
    xml_display(xquery(query))

But I also want to be able to display results using .css as though they were in a browser.  This looks like it should be straightforward, but I'm failing to see the hook that I need.

This works fine, but without a custom .css stylesheet:

def boxwood(xml):
    formatter = HtmlFormatter()
    display(HTML(xml))

I want to add the .css stylesheet to this.  Where do I do that?

Thanks!

Jonathan

[Thomas Kluyver]

Like your previous example, I think - assemble an HTML fragment including a <style> tag, and then display that.

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[Jonathan Robie]

Thanks - that should have been obvious, but it wasn't at the time.  This works, loading two external stylesheets:

treedown = "/Users/jonathan/git/greek-new-testament/syntax-trees/nestle1904-lowfat/xml/treedown.css"

boxwoodcss = "/Users/jonathan/git/greek-new-testament/syntax-trees/nestle1904-lowfat/xml/boxwood.css"

def boxwood(xml):

    formatter = HtmlFormatter()

    display(HTML('<style type="text/css">{}{}</style>{}'.format(

        open(treedown).readlines(),

        open(boxwoodcss).readlines(),

        xml)))

Jonathan

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