#ifndef URL_REGEX_HH
#define URL_REGEX_HH

#define USERCHARS       "-[:alnum:]"
#define USERCHARS_CLASS "[" USERCHARS "]"
#define PASSCHARS_CLASS "[-[:alnum:]\\Q,?;.:/!%$^*&~\"#'\\E]"
#define HOSTCHARS_CLASS "[-[:alnum:]]"
#define HOST            "(?:" HOSTCHARS_CLASS "+(\\." HOSTCHARS_CLASS "+)*)?"
#define PORT            "(?:\\:[[:digit:]]{1,5})?"
#define PATHCHARS_CLASS "[-[:alnum:]\\Q_$.+!*,;@&=?/~#%\\E]"
#define PATHTERM_CLASS  "[^\\Q]'.}>) \t\r\n,\"\\E]"
#define SCHEME          "(?:[[:alpha:]][+-.[:alnum:]]*:)"
#define USERPASS        USERCHARS_CLASS "+(?:" PASSCHARS_CLASS "+)?"
#define URLPATH         "(?:(/" PATHCHARS_CLASS "+(?:[(]" PATHCHARS_CLASS "*[)])*" PATHCHARS_CLASS "*)*" PATHTERM_CLASS ")?"

const char * const url_regex = SCHEME "//(?:" USERPASS "\\@)?" HOST PORT URLPATH;

#endif