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Remove comments in a JSON file
def removecomments(s):
inCommentSingle = False
inCommentMulti = False
inString = False
t = []
l = len(s)
i = 0
fromIndex = 0
while i < l:
c = s[i]
if not inCommentMulti and not inCommentSingle:
if c == '"':
slashes = 0
for j in xrange(i - 1, 0, -1):
if s[j] != '\\':
break
slashes += 1
if slashes % 2 == 0:
inString = not inString
elif not inString:
if c == '#':
inCommentSingle = True
t.append(s[fromIndex:i])
elif c == '/' and i + 1 < l:
cn = s[i + 1]
if cn == '/':
inCommentSingle = True
t.append(s[fromIndex:i])
i += 1
elif cn == '*':
inCommentMulti = True
t.append(s[fromIndex:i])
i += 1
elif inCommentSingle and (c == '\n' or c == '\r'):
inCommentSingle = False
fromIndex = i
elif inCommentMulti and c == '*' and i + 1 < l and s[i + 1] == '/':
inCommentMulti = False
i += 1
fromIndex = i + 1
i += 1
if not inCommentSingle and not inCommentMulti:
t.append(s[fromIndex:len(s)])
return "".join(t)
@marekbrzoska

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commented Jul 15, 2013

Free to use/copy/modify/redistribute?

@marekbrzoska

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commented Jul 15, 2013

I have run it though tests from https://github.com/getify/JSON.minify/blob/master/minify_json.py and it doesn't pass...

@prmichaelsen

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commented Jul 11, 2018

that's what happens when you write code in your browser!

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