; Paparazzi URL format v1.0.1 ; BNF format as RFC 1738 ; May 22, 2006 Nate Weaver (Wevah) ; Example ; paparazzi:(width=800,height=600)http://www.google.com/ paparazziurl = "paparazzi:" [ params ] resourceurl params = "(" 1#param ")" param = paramname [ "=" paramvalue ] paramname = [ "min" | "max" | "crop" ] "width" | [ "min" | "max" | "crop" ] "height" | "nocrop" ; minwidth/minheight are equivalent to width/height ; maxwidth/maxheight are equivalent to cropwidth/cropheight ; nocrop sets crop values to infinity and has no value ; unset values are left as-is paramvalue = *digit ; may change in future versions if other parameters are created resourceurl = httpurl | httpsurl | fileurl ; as per RFC 1738 ; FILE fileurl = "file://" [ host | "localhost" ] "/" fpath fpath = fsegment *[ "/" fsegment ] fsegment = *[ uchar | "?" | ":" | "@" | "&" | "=" ] ; HTTP(S) httpurl = "http://" hostport [ "/" hpath [ "?" search ]] httpsurl = "https://" hostport [ "/" hpath [ "?" search ]] hpath = hsegment *[ "/" hsegment ] hsegment = *[ uchar | ";" | ":" | "@" | "&" | "=" ] search = *[ uchar | ";" | ":" | "@" | "&" | "=" ] ; Miscellaneous definitions lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" | "j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" | "y" | "z" hialpha = "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" | "J" | "K" | "L" | "M" | "N" | "O" | "P" | "Q" | "R" | "S" | "T" | "U" | "V" | "W" | "X" | "Y" | "Z" alpha = lowalpha | hialpha digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" hex = digit | "A" | "B" | "C" | "D" | "E" | "F" | "a" | "b" | "c" | "d" | "e" | "f" escape = "%" hex hex unreserved = alpha | digit | safe | extra uchar = unreserved | escape