regexparser.py 文件源码

def validate_args(self, args: configargparse.Namespace) -> None:
        if args.version_parser == self.versionparser_name:
            if args.version_regex:
                try:
                    re.compile(args.version_regex)
                except re.error as e:
                    raise ErrorMessage("The regular expression passed to %s (%s) is invalid: %s." %
                                       (highlight("--version-regex"), highlight(args.version_regex), str(e)))

                def check_for(string: str) -> None:
                    if string not in args.version_regex:
                        raise ErrorMessage("The regular expression specified in %s must contain a named group %s." %
                                           (highlight("--version-regex"), highlight(string)))

                for g in ["<major>", "<minor>", "<patch>"]:
                    check_for(g)
            else:
                raise ErrorMessage("%s requires the parameter %s" %
                                   (highlight("--version-parser=%s" % self.versionparser_name),
                                    highlight("--version-regex")))