本文整理汇总了Python中docutils.utils.roman.InvalidRomanNumeralError方法的典型用法代码示例。如果您正苦于以下问题：Python roman.InvalidRomanNumeralError方法的具体用法？Python roman.InvalidRomanNumeralError怎么用？Python roman.InvalidRomanNumeralError使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类docutils.utils.roman的用法示例。
在下文中一共展示了roman.InvalidRomanNumeralError方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: parse_enumerator
# 需要导入模块: from docutils.utils import roman [as 别名]
# 或者: from docutils.utils.roman import InvalidRomanNumeralError [as 别名]
def parse_enumerator(self, match, expected_sequence=None):
"""
Analyze an enumerator and return the results.
:Return:
- the enumerator format ('period', 'parens', or 'rparen'),
- the sequence used ('arabic', 'loweralpha', 'upperroman', etc.),
- the text of the enumerator, stripped of formatting, and
- the ordinal value of the enumerator ('a' -> 1, 'ii' -> 2, etc.;
``None`` is returned for invalid enumerator text).
The enumerator format has already been determined by the regular
expression match. If `expected_sequence` is given, that sequence is
tried first. If not, we check for Roman numeral 1. This way,
single-character Roman numerals (which are also alphabetical) can be
matched. If no sequence has been matched, all sequences are checked in
order.
"""
groupdict = match.groupdict()
sequence = ''
for format in self.enum.formats:
if groupdict[format]: # was this the format matched?
break # yes; keep `format`
else: # shouldn't happen
raise ParserError('enumerator format not matched')
text = groupdict[format][self.enum.formatinfo[format].start
:self.enum.formatinfo[format].end]
if text == '#':
sequence = '#'
elif expected_sequence:
try:
if self.enum.sequenceregexps[expected_sequence].match(text):
sequence = expected_sequence
except KeyError: # shouldn't happen
raise ParserError('unknown enumerator sequence: %s'
% sequence)
elif text == 'i':
sequence = 'lowerroman'
elif text == 'I':
sequence = 'upperroman'
if not sequence:
for sequence in self.enum.sequences:
if self.enum.sequenceregexps[sequence].match(text):
break
else: # shouldn't happen
raise ParserError('enumerator sequence not matched')
if sequence == '#':
ordinal = 1
else:
try:
ordinal = self.enum.converters[sequence](text)
except roman.InvalidRomanNumeralError:
ordinal = None
return format, sequence, text, ordinal