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test_latexencode.py
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test_latexencode.py
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# -*- coding: utf-8 -*-
from __future__ import print_function, absolute_import, unicode_literals
import unittest
import sys
import re
import logging
if sys.version_info.major > 2:
def unicode(string): return string
basestring = str
from pylatexenc.latexencode import UnicodeToLatexEncoder, utf8tolatex
from pylatexenc import latexencode
class _DummyContextMgr(object):
def __enter__(self, *args, **kwargs):
pass
def __exit__(self, *args, **kwargs):
pass
class ProvideAssertCmds(object):
def assertLogs(self, *args, **kwargs):
logging.getLogger(__name__).warning(
"Can't check if logger generates correct warnings, skipping this check.")
return _DummyContextMgr()
class TestLatexEncode(unittest.TestCase, ProvideAssertCmds):
def __init__(self, *args, **kwargs):
super(TestLatexEncode, self).__init__(*args, **kwargs)
def test_basic_0(self):
u = UnicodeToLatexEncoder()
input = "\"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"''\\`A votre sant\\'e!'' s'exclama le ma{\\^\\i}tre de maison \\`a 100\\%.")
def test_basic_1(self):
u = UnicodeToLatexEncoder(non_ascii_only=True, replacement_latex_protection='braces-all')
input = "\"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"\"{\\`A} votre sant{\\'e}!\" s'exclama le ma{\\^\\i}tre de maison {\\`a} 100%.")
def test_basic_2(self):
u = UnicodeToLatexEncoder(replacement_latex_protection='braces-after-macro')
input = "\"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"''\\`A votre sant\\'e!'' s'exclama le ma\\^\\i{}tre de maison \\`a 100\\%.")
def test_basic_2b(self):
u = UnicodeToLatexEncoder(replacement_latex_protection='none')
input = "\"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"''\\`A votre sant\\'e!'' s'exclama le ma\\^\\itre de maison \\`a 100\\%.")
def test_basic_2c(self):
u = UnicodeToLatexEncoder(non_ascii_only=True)
ascii_chars_convert = " \" # $ % & \\ _ { } ~ "
self.assertEqual(u.unicode_to_latex(ascii_chars_convert), ascii_chars_convert)
def test_basic_2d(self):
u = UnicodeToLatexEncoder(non_ascii_only=False)
ascii_chars_convert = " \" # $ % & \\ _ { } ~ "
self.assertEqual(u.unicode_to_latex(ascii_chars_convert),
" '' \\# \\$ \\% \\& {\\textbackslash} \\_ \\{ \\} {\\textasciitilde} ")
def test_basic_3(self):
test_unknown_chars = "A unicode character: \N{THAI CHARACTER THO THONG}"
# generates warnings -- that's good
with self.assertLogs(logger='pylatexenc.latexencode', level='WARNING') as cm:
u = UnicodeToLatexEncoder(unknown_char_policy='keep')
self.assertEqual(u.unicode_to_latex(test_unknown_chars), test_unknown_chars) # unchanged
def test_basic_3b(self):
test_unknown_chars = "A unicode character: \N{THAI CHARACTER THO THONG}"
# generates warnings -- that's good
with self.assertLogs(logger='pylatexenc.latexencode', level='WARNING') as cm:
u = UnicodeToLatexEncoder(unknown_char_policy='replace')
self.assertEqual(u.unicode_to_latex(test_unknown_chars),
"A unicode character: {\\bfseries ?}")
def test_basic_3c(self):
test_unknown_chars = "A unicode character: \N{THAI CHARACTER THO THONG}"
u = UnicodeToLatexEncoder(unknown_char_policy='unihex', unknown_char_warning=False)
self.assertEqual(u.unicode_to_latex(test_unknown_chars),
"A unicode character: \\ensuremath{\\langle}\\texttt{U+0E18}\\ensuremath{\\rangle}")
def test_rules_00(self):
def acallable(s, pos):
if s[pos] == "\N{LATIN SMALL LETTER E WITH ACUTE}":
return (1, r"{\'{e}}")
if s.startswith('...', pos):
return (3, r"\ldots")
return None
u = UnicodeToLatexEncoder(conversion_rules=[
latexencode.UnicodeToLatexConversionRule(latexencode.RULE_DICT, {
ord("\N{LATIN CAPITAL LETTER A WITH GRAVE}"): r"{{\`{A}}}",
ord("%"): r"\textpercent",
}),
latexencode.UnicodeToLatexConversionRule(latexencode.RULE_REGEX, [
(re.compile('v(otre)'), r'n\1'),
(re.compile("s'exclama", flags=re.I), r"s'exprima"),
(re.compile('\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}'), r"{\^i}"),
]),
] + latexencode.get_builtin_conversion_rules('defaults') + [
latexencode.UnicodeToLatexConversionRule(latexencode.RULE_CALLABLE, acallable),
])
input = "\"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison ... \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"''{{\\`{A}}} notre sant\\'e!'' s'exprima le ma{\\^i}tre de maison {\\ldots} \\`a 100{\\textpercent}.")
def test_rules_01(self):
def acallable(s, pos):
if s[pos] == "\N{LATIN SMALL LETTER E WITH ACUTE}":
return (1, r"{\'{e}}")
if s.startswith('...', pos):
return (3, r"\ldots")
return None
u = UnicodeToLatexEncoder(conversion_rules=[
latexencode.UnicodeToLatexConversionRule(latexencode.RULE_DICT, {
ord("\N{LATIN CAPITAL LETTER A WITH GRAVE}"): r"{{\`{A}}}",
ord("%"): r"\textpercent",
}),
latexencode.UnicodeToLatexConversionRule(latexencode.RULE_REGEX, [
(re.compile('v(otre)'), r'n\1'),
(re.compile("s'exclama", flags=re.I), r"s'exprima"),
(re.compile('\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}'), r"{\^i}"),
]),
'unicode-xml', # expand built-in rule names
latexencode.UnicodeToLatexConversionRule(latexencode.RULE_CALLABLE, acallable),
])
input = "\"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison ... \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"\"{{\\`{A}}} notre sant\\'{e}!\" s'exprima le ma{\\^i}tre de maison {\\ldots} \\`{a} 100{\\textpercent}.")
def test_rules_02(self):
# based on test_basic_0()
u = UnicodeToLatexEncoder(conversion_rules=['defaults'])
#u = UnicodeToLatexEncoder()
input = "* \"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama\N{SUPERSCRIPT TWO} le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"* ''\\`A votre sant\\'e!'' s'exclama{\\texttwosuperior} le ma{\\^\\i}tre de maison \\`a 100\\%.")
def test_rules_03(self):
u = UnicodeToLatexEncoder(conversion_rules=['unicode-xml'])
input = "* \"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama\N{SUPERSCRIPT TWO} le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(u.unicode_to_latex(input),
"{\\ast} \"\\`{A} votre sant\\'{e}!\" s{\\textquotesingle}exclama{^2} le ma\\^{\\i}tre de maison \\`{a} 100\\%.")
def test_issue_no21(self):
# test for https://github.com/phfaist/pylatexenc/issues/21
def capitalize_acronyms(s, pos):
if s[pos] in ('{', '}'):
# preserve existing braces
return (1, s[pos])
m = re.compile(r'\b[A-Z]{2,}\w*\b').match(s, pos)
if m is None:
return None
return (m.end()-m.start(), "{" + m.group() + "}")
u = UnicodeToLatexEncoder(
conversion_rules=[
latexencode.UnicodeToLatexConversionRule(latexencode.RULE_CALLABLE, capitalize_acronyms),
] + latexencode.get_builtin_conversion_rules('defaults')
)
input = "Title with {Some} ABC acronyms LIKe this."
self.assertEqual(
u.unicode_to_latex(input),
"Title with {Some} {ABC} acronyms {LIKe} this."
)
u = UnicodeToLatexEncoder(
conversion_rules=[
latexencode.UnicodeToLatexConversionRule(
latexencode.RULE_REGEX,
[ (re.compile(r'([{}])'), r'\1'), # keep existing braces
(re.compile(r'\b([A-Z]{2,}\w*)\b'), r'{\1}'), ]
),
] + latexencode.get_builtin_conversion_rules('defaults')
)
input = "Title with {Some} ABC acronyms LIKe this."
self.assertEqual(
u.unicode_to_latex(input),
"Title with {Some} {ABC} acronyms {LIKe} this."
)
def test_latex_string_class(self):
class LatexChunkList:
def __init__(self):
self.chunks = []
def __iadd__(self, s):
self.chunks.append(s)
return self
u = UnicodeToLatexEncoder(latex_string_class=LatexChunkList,
replacement_latex_protection='none')
result = u.unicode_to_latex("A é → α")
# result is an object of custom type LatexChunkList
self.assertEqual(
result.chunks,
['A', ' ', r'\'e', ' ', r'\textrightarrow', ' ', r'\ensuremath{\alpha}']
)
class TestUtf8tolatex(unittest.TestCase, ProvideAssertCmds):
def __init__(self, *args, **kwargs):
super(TestUtf8tolatex, self).__init__(*args, **kwargs)
def test_basic(self):
input = "\"\N{LATIN CAPITAL LETTER A WITH GRAVE} votre sant\N{LATIN SMALL LETTER E WITH ACUTE}!\" s'exclama le ma\N{LATIN SMALL LETTER I WITH CIRCUMFLEX}tre de maison \N{LATIN SMALL LETTER A WITH GRAVE} 100%."
self.assertEqual(utf8tolatex(input),
"''{\\`A} votre sant{\\'e}!'' s'exclama le ma{\\^\\i}tre de maison {\\`a} 100{\\%}.")
self.assertEqual(utf8tolatex(input, non_ascii_only=True),
"\"{\\`A} votre sant{\\'e}!\" s'exclama le ma{\\^\\i}tre de maison {\\`a} 100%.")
# TODO: in the future, be clever and avoid breaking macros like this ("\itre"):
self.assertEqual(utf8tolatex(input, brackets=False),
"''\\`A votre sant\\'e!'' s'exclama le ma\\^\\itre de maison \\`a 100\\%.")
ascii_chars_convert = " \" # $ % & \\ _ { } ~ "
self.assertEqual(utf8tolatex(ascii_chars_convert, non_ascii_only=True),
ascii_chars_convert)
self.assertEqual(utf8tolatex(ascii_chars_convert, non_ascii_only=False),
" '' {\\#} {\\$} {\\%} {\\&} {\\textbackslash} {\\_} {\\{} {\\}} {\\textasciitilde} ")
test_bad_chars = "A unicode character: \N{THAI CHARACTER THO THONG}"
# generates warnings -- that's good
with self.assertLogs(logger='pylatexenc.latexencode', level='WARNING') as cm:
self.assertEqual(utf8tolatex(test_bad_chars, substitute_bad_chars=False),
test_bad_chars) # unchanged
with self.assertLogs(logger='pylatexenc.latexencode', level='WARNING') as cm:
self.assertEqual(utf8tolatex(test_bad_chars, substitute_bad_chars=True),
"A unicode character: {\\bfseries ?}")
if __name__ == '__main__':
logging.basicConfig(level=logging.DEBUG)
unittest.main()
#