Remove comments in a JSON file

gistfile1.py

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)

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