mirror of
https://github.com/morpheus65535/bazarr
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124 lines
3.5 KiB
Python
124 lines
3.5 KiB
Python
import json
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def dispose(json_str):
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"""Clear all comments in json_str.
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Clear JS-style comments like // and /**/ in json_str.
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Accept a str or unicode as input.
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Args:
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json_str: A json string of str or unicode to clean up comment
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Returns:
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str: The str without comments (or unicode if you pass in unicode)
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"""
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result_str = list(json_str)
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escaped = False
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normal = True
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sl_comment = False
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ml_comment = False
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quoted = False
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a_step_from_comment = False
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a_step_from_comment_away = False
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former_index = None
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for index, char in enumerate(json_str):
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if escaped: # We have just met a '\'
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escaped = False
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continue
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if a_step_from_comment: # We have just met a '/'
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if char != '/' and char != '*':
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a_step_from_comment = False
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normal = True
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continue
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if char == '"':
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if normal and not escaped:
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# We are now in a string
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quoted = True
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normal = False
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elif quoted and not escaped:
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# We are now out of a string
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quoted = False
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normal = True
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elif char == '\\':
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# '\' should not take effect in comment
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if normal or quoted:
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escaped = True
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elif char == '/':
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if a_step_from_comment:
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# Now we are in single line comment
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a_step_from_comment = False
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sl_comment = True
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normal = False
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former_index = index - 1
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elif a_step_from_comment_away:
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# Now we are out of comment
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a_step_from_comment_away = False
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normal = True
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ml_comment = False
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for i in range(former_index, index + 1):
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result_str[i] = ""
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elif normal:
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# Now we are just one step away from comment
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a_step_from_comment = True
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normal = False
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elif char == '*':
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if a_step_from_comment:
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# We are now in multi-line comment
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a_step_from_comment = False
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ml_comment = True
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normal = False
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former_index = index - 1
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elif ml_comment:
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a_step_from_comment_away = True
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elif char == '\n':
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if sl_comment:
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sl_comment = False
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normal = True
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for i in range(former_index, index + 1):
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result_str[i] = ""
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elif char == ']' or char == '}':
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if normal:
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_remove_last_comma(result_str, index)
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# Show respect to original input if we are in python2
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return ("" if isinstance(json_str, str) else u"").join(result_str)
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# There may be performance suffer backtracking the last comma
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def _remove_last_comma(str_list, before_index):
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i = before_index - 1
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while str_list[i].isspace() or not str_list[i]:
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i -= 1
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# This is the first none space char before before_index
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if str_list[i] == ',':
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str_list[i] = ''
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# Below are just some wrapper function around the standard json module.
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def loads(text, **kwargs):
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return json.loads(dispose(text), **kwargs)
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def load(fp, **kwargs):
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return loads(fp.read(), **kwargs)
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def dumps(obj, **kwargs):
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return json.dumps(obj, **kwargs)
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def dump(obj, fp, **kwargs):
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json.dump(obj, fp, **kwargs)
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