84 lines
3.5 KiB
Python
84 lines
3.5 KiB
Python
# Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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# All rights reserved. Contact: Pasi Eronen <pasi.eronen@nokia.com>
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials provided
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# with the distribution.
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#
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# * Neither the name of the Nokia Corporation and/or its
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# subsidiary(-ies) nor the names of its contributors may be used
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# to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import re
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import six
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import string
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from django.utils.html import escape
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from ietf.utils import log
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from ietf.utils.text import wordwrap
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def markup_ascii(content, width=None):
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log.unreachable('2017-12-08')
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if six.PY2:
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assert isinstance(content, basestring)
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# at this point, "content" is normal string
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# fix most common non-ASCII characters
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t1 = string.maketrans("\x91\x92\x93\x94\x95\x96\x97\xc6\xe8\xe9", "\'\'\"\"o--\'ee")
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# map everything except printable ASCII, TAB, LF, FF to "?"
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t2 = string.maketrans('','')
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t3 = "?"*9 + "\t\n?\f" + "?"*19 + t2[32:127] + "?"*129
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t4 = t1.translate(t3)
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content = content.translate(t4)
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else:
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log.assertion('six.PY2')
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return markup(content.decode('ascii'), width)
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def markup(content, width=None):
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log.assertion('isinstance(content, six.text_type)')
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# normalize line endings to LF only
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content = content.replace("\r\n", "\n")
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content = content.replace("\r", "\n")
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# remove leading white space
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content = content.lstrip()
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# remove runs of blank lines
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content = re.sub("\n\n\n+", "\n\n", content)
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# maybe wordwrap. This must be done before the escaping below.
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if width:
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content = wordwrap(content, width)
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# expand tabs + escape
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content = escape(content.expandtabs())
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content = re.sub("\n(.+\[Page \d+\])\n\f\n(.+)\n", """\n<span class="m_ftr">\g<1></span>\n<span class="m_hdr">\g<2></span>\n""", content)
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content = re.sub("\n(.+\[Page \d+\])\n\s*$", """\n<span class="m_ftr">\g<1></span>\n""", content)
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# remove remaining FFs (to be valid XHTML)
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content = content.replace("\f","\n")
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content = re.sub("\n\n([0-9]+\\.|[A-Z]\\.[0-9]|Appendix|Status of|Abstract|Table of|Full Copyright|Copyright|Intellectual Property|Acknowled|Author|Index)(.*)(?=\n\n)", """\n\n<span class="m_h">\g<1>\g<2></span>""", content)
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return "<pre>" + content + "</pre>\n"
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