template.py
162 lines
| 5.2 KiB
| text/x-python
|
PythonLexer
/ converters / template.py
Matthias BUSSONNIER
|
r8994 | """Base classes for the notebook conversion pipeline. | ||
This module defines Converter, from which all objects designed to implement | ||||
a conversion of IPython notebooks to some other format should inherit. | ||||
""" | ||||
#----------------------------------------------------------------------------- | ||||
# Copyright (c) 2012, the IPython Development Team. | ||||
# | ||||
# Distributed under the terms of the Modified BSD License. | ||||
# | ||||
# The full license is in the file COPYING.txt, distributed with this software. | ||||
#----------------------------------------------------------------------------- | ||||
#----------------------------------------------------------------------------- | ||||
# Imports | ||||
#----------------------------------------------------------------------------- | ||||
from __future__ import print_function, absolute_import | ||||
# Stdlib imports | ||||
import jinja2 | ||||
import codecs | ||||
import io | ||||
import logging | ||||
import os | ||||
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r9040 | from IPython.utils import path | ||
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r8994 | import pprint | ||
import re | ||||
from types import FunctionType | ||||
from jinja2 import Environment, PackageLoader, FileSystemLoader | ||||
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r9049 | env = Environment( | ||
loader=FileSystemLoader('./templates/'), | ||||
extensions=['jinja2.ext.loopcontrols'] | ||||
) | ||||
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r8994 | |||
# IPython imports | ||||
from IPython.nbformat import current as nbformat | ||||
from IPython.config.configurable import Configurable, SingletonConfigurable | ||||
from IPython.utils.traitlets import (List, Unicode, Type, Bool, Dict, CaselessStrEnum, | ||||
Any) | ||||
# Our own imports | ||||
from IPython.utils.text import indent | ||||
from .utils import remove_ansi | ||||
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r8997 | from markdown import markdown | ||
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r9039 | from .utils import highlight,ansi2html | ||
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r8994 | #----------------------------------------------------------------------------- | ||
# Class declarations | ||||
#----------------------------------------------------------------------------- | ||||
def rm_fake(strng): | ||||
return strng.replace('/files/', '') | ||||
class ConversionException(Exception): | ||||
pass | ||||
def python_comment(string): | ||||
return '# '+'\n# '.join(string.split('\n')) | ||||
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r9040 | |||
def header_body(): | ||||
"""Return the body of the header as a list of strings.""" | ||||
from pygments.formatters import HtmlFormatter | ||||
header = [] | ||||
static = os.path.join(path.get_ipython_package_dir(), | ||||
'frontend', 'html', 'notebook', 'static', | ||||
) | ||||
here = os.path.split(os.path.realpath(__file__))[0] | ||||
css = os.path.join(static, 'css') | ||||
for sheet in [ | ||||
# do we need jquery and prettify? | ||||
# os.path.join(static, 'jquery', 'css', 'themes', 'base', | ||||
# 'jquery-ui.min.css'), | ||||
# os.path.join(static, 'prettify', 'prettify.css'), | ||||
os.path.join(css, 'boilerplate.css'), | ||||
os.path.join(css, 'fbm.css'), | ||||
os.path.join(css, 'notebook.css'), | ||||
os.path.join(css, 'renderedhtml.css'), | ||||
# our overrides: | ||||
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r9046 | os.path.join(here, '..', 'css', 'static_html.css'), | ||
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r9040 | ]: | ||
with io.open(sheet, encoding='utf-8') as f: | ||||
s = f.read() | ||||
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r9048 | header.append(s) | ||
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r9046 | |||
pygments_css = HtmlFormatter().get_style_defs('.highlight') | ||||
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r9048 | header.append(pygments_css) | ||
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r9040 | return header | ||
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r9048 | inlining= {} | ||
inlining['css'] = header_body() | ||||
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r9040 | |||
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r9049 | |||
def filter_data_type(output): | ||||
for fmt in ['html', 'pdf', 'svg', 'latex','png', 'jpg','jpeg' , 'text']: | ||||
if fmt in output: | ||||
return [fmt] | ||||
env.filters['filter_data_type'] = filter_data_type | ||||
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r8994 | env.filters['pycomment'] = python_comment | ||
env.filters['indent'] = indent | ||||
env.filters['rm_fake'] = rm_fake | ||||
env.filters['rm_ansi'] = remove_ansi | ||||
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r8997 | env.filters['markdown'] = markdown | ||
env.filters['highlight'] = highlight | ||||
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r9039 | env.filters['ansi2html'] = ansi2html | ||
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r8994 | |||
class ConverterTemplate(Configurable): | ||||
display_data_priority = ['pdf', 'svg', 'png', 'jpg', 'text'] | ||||
#------------------------------------------------------------------------- | ||||
# Instance-level attributes that are set in the constructor for this | ||||
# class. | ||||
#------------------------------------------------------------------------- | ||||
infile = Any() | ||||
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r9010 | |||
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r8994 | infile_dir = Unicode() | ||
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r8997 | def __init__(self, tplfile='fullhtml', config=None, **kw): | ||
self.template = env.get_template(tplfile+'.tpl') | ||||
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r8994 | super(ConverterTemplate,self).__init__(config=config) | ||
def _get_prompt_number(self, cell): | ||||
return cell.prompt_number if hasattr(cell, 'prompt_number') \ | ||||
else self.blank_symbol | ||||
def process(self): | ||||
converted_cells = [] | ||||
for worksheet in self.nb.worksheets: | ||||
for cell in worksheet.cells: | ||||
cell.type = cell.cell_type | ||||
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r9039 | cell.haspyout = False | ||
for out in cell.get('outputs',[]): | ||||
if out.output_type == 'pyout': | ||||
cell.haspyout = True | ||||
break | ||||
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r9010 | converted_cells.append(worksheet) | ||
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r8994 | |||
return converted_cells | ||||
def convert(self, cell_separator='\n'): | ||||
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r9182 | """ convert the ipynb file | ||
return both the converted ipynb file and a dict containing potential | ||||
other resources | ||||
""" | ||||
return self.template.render(worksheets=self.process(), inlining=inlining),{} | ||||
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r8994 | |||
def read(self, filename): | ||||
"read and parse notebook into NotebookNode called self.nb" | ||||
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r9014 | with io.open(filename) as f: | ||
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r8994 | self.nb = nbformat.read(f, 'json') | ||