meta {
    title: "NL+DE traffic signs";
    description: "Visualization of Dutch (and German) roadsigns.";
    author: "Sander H";
    version: "0.5_2015-11-04";
    license: "CC-BY-SA";
    icon: "images/icon.png";
    min-josm-version: "8260";
}

meta[lang=nl]
{
    title: "NL+DE verkeersborden";
    description: "Visualisatie voor Nederlandse (en Duitse) verkeersborden";
}

/* Create mappaint user settings. */
setting::rotate_based_on_direction {
  type: boolean;
  label: tr("Use the direction tag to rotate traffic signs on nodes");
  default: true;
}
setting::way_show_icons {
  type: boolean;
  label: tr("Show icons on ways");
  default: true;
}


/* display individual traffic_sign */
node[traffic_sign^="NL"]::*
{
	/* Get rid of superfluous NL: */
	list1: replace(replace(tag(traffic_sign),",NL:",","),";NL:",";");

	/* Map "," to ';" and insert NL: */
	sign_list: split(";", replace(replace(prop(list1),",",";"),
		";",";NL:"));
}
node[traffic_sign^="NL"]
{
	one_sign: get(prop("sign_list"),0);
	icon-image: eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/NL/", replace(prop("one_sign"),":", "_"), ".svg"));
	icon-width: 20;
}
node[traffic_sign^="NL"]::traffic_sign_layer1
{
	foo: prop("sign_list");	/* Why do we need this? */
	one_sign: get(prop("sign_list"),1);

	icon-image: prop(one_sign) != none ?
		eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/NL/", replace(prop("one_sign"),":", "_"), ".svg")) :
		none;
	icon-width: 20;
	icon-offset-x: 0;
	icon-offset-y: 20;
}
node[traffic_sign^="NL"]::traffic_sign_layer2
{
	foo: prop("sign_list");	/* Why do we need this? */
	one_sign: get(prop("sign_list"),2);

	icon-image: prop(one_sign) != none ?
		eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/NL/", replace(prop("one_sign"),":", "_"), ".svg")) :
		none;
	icon-width: 20;
	icon-offset-x: 0;
	icon-offset-y: 40;
}

node[traffic_sign^="DE"]
{
	icon-image: eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/DE/", replace(tag(traffic_sign),":", "_"), ".svg"));
	icon-width: 20;
}

/* draw traffic_sign on way */
way[traffic_sign^="NL"][setting("way_show_icons")]
{
	repeat-image: eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/NL/", replace(tag(traffic_sign),":", "_"), ".svg"));
	repeat-image-width: 16;
	repeat-image-spacing: 250;
}
way[traffic_sign^="DE"][setting("way_show_icons")]
{
	repeat-image: eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/DE/", replace(tag(traffic_sign),":", "_"), ".svg"));
	repeat-image-width: 16;
	repeat-image-spacing: 250;
}

/* exception for traffic_sign G13/14 which are a bit wider */
node[traffic_sign=~/^NL:G13.*/][setting("way_show_icons")],
node[traffic_sign=~/^NL:G14.*/][setting("way_show_icons")]
{
	icon-width: 40;
}
/* also for ways, but direction of way may cause sign to be drawn upside down */
way[traffic_sign=~/^NL:G13.*/][setting("way_show_icons")],
way[traffic_sign=~/^NL:G14.*/][setting("way_show_icons")]
{
	repeat-image: eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/NL/", replace(tag(traffic_sign),":", "_"), ".svg"));
	repeat-image-width: 40;
	repeat-image-spacing: 250;
}

/* from HenkL: if direction is present, rotate icon */
node[traffic_sign^="NL"][direction][setting("rotate_based_on_direction")]::*
{
    icon-rotation: eval(degree_to_radians(180 +
	(tag(direction) = "N" ? 0 : 
	tag(direction) = "NE" ? 45 : 
	tag(direction) = "E" ? 90 :
	tag(direction) = "SE" ? 135 :
	tag(direction) = "S" ? 180 :
	tag(direction) = "SW" ? 225 :
	tag(direction) = "W" ? 270 :
	tag(direction) = "NW" ? 315 :
	tag(direction))));
}
node[traffic_sign^="NL"][traffic_sign:direction="backward"]::*
{
    icon-rotation: degree_to_radians(180);
}

/*
node[traffic_sign =~ /.*\(.*\)/]
{
/*    _match: regexp_match("((?<country>[a-zA-Z]+)(?:[:])(?<category>[a-zA-Z]+)(?:[0]?)(?<number>[0-9a-zA-Z-]+)(?:\()(?<suffix>.*?)(?:\)))", tag("traffic_sign"));* /
/*    _match: regexp_match("((?[a-zA-Z]+)(?:[:])(?[a-zA-Z]+)(?:[0]?)(?[0-9a-zA-Z-]+)(?:\()(?.*?)(?:\)))", tag("traffic_sign"));* /

    _match: regexp_match("((?[a-zA-Z]+)(?:[:])(?[a-zA-Z]+)(?:[0]?)(?[0-9a-zA-Z-]+)(?:\()(?.*?)(?:\)))", tag("traffic_sign"));

	/*text: eval(concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/NL/", get(prop("_match"),1), get(prop("_match"),2), get(prop("_match"),3), get(prop("_match"),4), "<" ));* /
}
above didn't work, so using the below workaround from HenkL
*/
node[traffic_sign*="(U"]
{
    _temp1: split("(U", tag(traffic_sign));
    _temp2: get(prop(_temp1), 0);
    _temp3: replace(prop(_temp2), ":", "_");
    _temp4: concat("http://duinoord.home.xs4all.nl/OSM/JOSM/NL_traffic_signs/traffic_signs/NL/", prop(_temp3), ".svg");
    icon-image: eval(prop(_temp4));
}

/* TODO */
/* render nodes with multiple traffic signs */