- key = m.group(2)
- if key.startswith("'"):
- assert key.endswith("'")
- assert '"' not in key
- key = '"%s"' % key[1:-1]
- elif not key.startswith('"'):
- key = '"%s"' % key
-
- value = m.group(4)
- if value.startswith("'"):
- assert value.endswith("'")
- assert '"' not in value
- value = '"%s"' % value[1:-1]
-
- return m.group(1) + key + m.group(3) + value
+ v = m.group(0)
+ if v in ('true', 'false', 'null'):
+ return v
+ if v.startswith('"'):
+ return v
+ if v.startswith("'"):
+ v = v[1:-1]
+ v = re.sub(r"\\\\|\\'|\"", lambda m: {
+ '\\\\': '\\\\',
+ "\\'": "'",
+ '"': '\\"',
+ }[m.group(0)], v)
+ return '"%s"' % v