def parser()

in genmd.py [0:0]
43 lines of code
16 McCabe index (conditional complexity)

    def parser(txt):
        sections = txt.split("---\n")
        if len(sections) != 3 or len(sections[0]) != 0:
            raise Exception("Invalid MFSA format: \n%s\n..." % txt[:300])
        head,bod = sections[1:3]
        header = {}
        append_to = None
        for line in head.split('\n')[:-1]:  # head ends in \n, skip that with [:-1]
            if line.startswith("announced: "):
                header["announced"] = line[11:]
                append_to = None
            elif line.startswith("fixed_in:"):
                if len(line) > len("fixed_in:") + 2:
                    header["fixed_in"] = [line[10:]]
                else:
                    header["fixed_in"] = []
                append_to = "fixed_in"
            elif line.startswith("vulnerable:"):    # TODO: warn about obsolete field
                if len(line) > len("vulnerable:") + 2:
                    header["vulnerable"] = [line[12:]]
                else:
                    header["vulnerable"] = []
                append_to = "vulnerable"
            elif line.startswith("- "):  # fixed_in: or vulnerable: continuation
                # CAVE: "- ..." lines are treated independent of their position
                header[append_to].append(line[2:])
            elif line.startswith("impact: "):
                header["impact"] = line[8:]
                append_to = None
            elif line.startswith("reporter: "):
                header["reporter"] = line[10:]
                append_to = None
            elif line.startswith("title: "):
                header["title"] = line[7:]
                append_to = None
            elif line.startswith("  "):  # title: continuation
                # CAVE: Only supports title continuation, fails silently when other
                # fields are continued like this.
                header["title"] += line[1:]
            elif line.startswith("risk: "):  # TODO: warn about obsolete field
                header["risk"] = line[6:]
                append_to = None
            else:
                raise Exception("Unknown MFSA header: %s" % line)

        # body = minidom.parseString("<html>" + bod + "</html>")
        # print MfsaMd.xmlheader + bod + MfsaMd.xmlfooter
        body = minidom.parseString(MfsaMd.xmlheader + bod + MfsaMd.xmlfooter)

        return header, body