def test_anchors_aliases():
text = """
left hand: &A
name: The Bastard Sword of Eowyn
weight: 30
right hand: *A
"""
with pytest.raises(yaml.YAMLError):
yaml.load(text)
def parse_docs(docs, marks):
"""
Parse YAML syntax content from docs
If docs is None, return {}
If docs has no YAML content, return {"$desc": docs}
Else, parse YAML content, return {"$desc": docs, YAML}
Args:
docs (str): docs to be parsed
marks (list): list of which indicate YAML content starts
Returns:
A dict contains information of docs
"""
if docs is None:
return {}
indexs = []
for mark in marks:
i = docs.find(mark)
if i >= 0:
indexs.append(i)
if not indexs:
return {"$desc": textwrap.dedent(docs).strip()}
start = min(indexs)
start = docs.rfind("\n", 0, start)
yamltext = textwrap.dedent(docs[start + 1:])
meta = yaml.load(yamltext)
meta["$desc"] = textwrap.dedent(docs[:start]).strip()
return meta
def parse_docs(docs, marks):
"""
Parse YAML syntax content from docs
If docs is None, return {}
If docs has no YAML content, return {"$desc": docs}
Else, parse YAML content, return {"$desc": docs, YAML}
Args:
docs (str): docs to be parsed
marks (list): list of which indicate YAML content starts
Returns:
A dict contains information of docs
"""
if docs is None:
return {}
indexs = []
for mark in marks:
i = docs.find(mark)
if i >= 0:
indexs.append(i)
if not indexs:
return {"$desc": textwrap.dedent(docs).strip()}
start = min(indexs)
start = docs.rfind("\n", 0, start)
yamltext = textwrap.dedent(docs[start + 1:])
meta = yaml.load(yamltext)
meta["$desc"] = textwrap.dedent(docs[:start]).strip()
return meta
def _parse_doc(doc, mark):
"""
Parse YAML syntax data from doc
if doc is None, return ('', OrderedDict())
if doc has no YAML data, return (doc, OrderedDict())
else, parse YAML data, return (doc, data)
Args:
doc (str): doc to be parsed
mark (Regex): which marks the start position of data
Returns:
tuple(desc, data): data is an OrderedDict contains information of doc
"""
if doc is None:
return '', OrderedDict()
match = mark.search(doc)
if not match:
return textwrap.dedent(doc).strip(), OrderedDict()
start = match.start()
yamltext = textwrap.dedent(doc[start:])
try:
data = yaml.load(yamltext)
except yaml.parser.ParserError as ex:
raise SchemaError(str(ex)) from None
return textwrap.dedent(doc[:start]).strip(), data
def test_order():
yamltext = """
a:
x: 1
y: 2
z: 3
b: 0
c: 0
d: 0
"""
for i in range(100):
data = yaml.load(yamltext)
assert isinstance(data, OrderedDict)
assert isinstance(data['a'], OrderedDict)
assert list(data['a'].items()) == [('x', 1), ('y', 2), ('z', 3)]
del data['a']
assert list(data.items()) == [('b', 0), ('c', 0), ('d', 0)]
def main():
if len(sys.argv) == 1:
infile = sys.stdin
outfile = sys.stdout
elif len(sys.argv) == 2:
infile = open(sys.argv[1], 'rb')
outfile = sys.stdout
elif len(sys.argv) == 3:
infile = open(sys.argv[1], 'rb')
outfile = open(sys.argv[2], 'wb')
else:
raise SystemExit(sys.argv[0] + " [infile [outfile]]")
with infile:
try:
obj = yaml.load(infile)
except ValueError as e:
raise SystemExit(e)
with outfile:
json.dump(obj, outfile, sort_keys=True,
indent=4, separators=(',', ': '))
outfile.write('\n')
def test_special_yaml_char(text):
yaml.load(text)
