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"""
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Contains writer for writing nbconvert output to PDF.
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"""
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#-----------------------------------------------------------------------------
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#Copyright (c) 2013, the IPython Development Team.
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#
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#Distributed under the terms of the Modified BSD License.
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#
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#The full license is in the file COPYING.txt, distributed with this software.
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#-----------------------------------------------------------------------------
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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import subprocess
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import os
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from IPython.utils.traitlets import Integer, Unicode, Bool
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from .base import PostProcessorBase
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#-----------------------------------------------------------------------------
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# Classes
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#-----------------------------------------------------------------------------
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class PDFPostProcessor(PostProcessorBase):
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"""Writer designed to write to PDF files"""
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iteration_count = Integer(3, config=True, help="""
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How many times pdflatex will be called.
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""")
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compiler = Unicode(u'pdflatex {0}', config=True, help="""
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Shell command used to compile PDF.""")
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verbose = Bool(False, config=True, help="""
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Whether or not to display the output of the compile call.
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""")
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def call(self, input):
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"""
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Consume and write Jinja output a PDF.
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See files.py for more...
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"""
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command = self.compiler.format(input)
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for index in range(self.iteration_count):
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if self.verbose:
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subprocess.Popen(command, shell=True)
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else:
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with open(os.devnull, 'wb') as null:
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subprocess.Popen(command, shell=True, stdout=null)
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