You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.5 KiB
76 lines
2.5 KiB
5 years ago
|
|
||
|
|
__all__ = ['Mark', 'YAMLError', 'MarkedYAMLError']
|
||
|
|
|
||
|
|
class Mark(object):
|
||
|
|
|
||
|
|
def __init__(self, name, index, line, column, buffer, pointer):
|
||
|
|
self.name = name
|
||
|
|
self.index = index
|
||
|
|
self.line = line
|
||
|
|
self.column = column
|
||
|
|
self.buffer = buffer
|
||
|
|
self.pointer = pointer
|
||
|
|
|
||
|
|
def get_snippet(self, indent=4, max_length=75):
|
||
|
|
if self.buffer is None:
|
||
|
|
return None
|
||
|
|
head = ''
|
||
|
|
start = self.pointer
|
||
|
|
while start > 0 and self.buffer[start-1] not in u'\0\r\n\x85\u2028\u2029':
|
||
|
|
start -= 1
|
||
|
|
if self.pointer-start > max_length/2-1:
|
||
|
|
head = ' ... '
|
||
|
|
start += 5
|
||
|
|
break
|
||
|
|
tail = ''
|
||
|
|
end = self.pointer
|
||
|
|
while end < len(self.buffer) and self.buffer[end] not in u'\0\r\n\x85\u2028\u2029':
|
||
|
|
end += 1
|
||
|
|
if end-self.pointer > max_length/2-1:
|
||
|
|
tail = ' ... '
|
||
|
|
end -= 5
|
||
|
|
break
|
||
|
|
snippet = self.buffer[start:end].encode('utf-8')
|
||
|
|
return ' '*indent + head + snippet + tail + '\n' \
|
||
|
|
+ ' '*(indent+self.pointer-start+len(head)) + '^'
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
snippet = self.get_snippet()
|
||
|
|
where = " in \"%s\", line %d, column %d" \
|
||
|
|
% (self.name, self.line+1, self.column+1)
|
||
|
|
if snippet is not None:
|
||
|
|
where += ":\n"+snippet
|
||
|
|
return where
|
||
|
|
|
||
|
|
class YAMLError(Exception):
|
||
|
|
pass
|
||
|
|
|
||
|
|
class MarkedYAMLError(YAMLError):
|
||
|
|
|
||
|
|
def __init__(self, context=None, context_mark=None,
|
||
|
|
problem=None, problem_mark=None, note=None):
|
||
|
|
self.context = context
|
||
|
|
self.context_mark = context_mark
|
||
|
|
self.problem = problem
|
||
|
|
self.problem_mark = problem_mark
|
||
|
|
self.note = note
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
lines = []
|
||
|
|
if self.context is not None:
|
||
|
|
lines.append(self.context)
|
||
|
|
if self.context_mark is not None \
|
||
|
|
and (self.problem is None or self.problem_mark is None
|
||
|
|
or self.context_mark.name != self.problem_mark.name
|
||
|
|
or self.context_mark.line != self.problem_mark.line
|
||
|
|
or self.context_mark.column != self.problem_mark.column):
|
||
|
|
lines.append(str(self.context_mark))
|
||
|
|
if self.problem is not None:
|
||
|
|
lines.append(self.problem)
|
||
|
|
if self.problem_mark is not None:
|
||
|
|
lines.append(str(self.problem_mark))
|
||
|
|
if self.note is not None:
|
||
|
|
lines.append(self.note)
|
||
|
|
return '\n'.join(lines)
|
||
|
|
|