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exports.urlToXpathObj = function urlToXpathObj(url){
// FIXMEresult.shift(): more validaiton
// filter stars in keys
// filter no enough arguments
var parseKeyList = function(string){
result = /(.+)(:?\|(.+))/.exec(string);
result.shift();
return result;
}
var parseBboxList = function(string){
result = /(.+)(:?,(.+)){3}/.exec(string);
if(result.length != 4){
throw "error";
}
result.shift();
return {
'left' : result[0],
'bottom' : result[1],
'right' : result[2],
'top' : result[3]
}
}
var xp = {};
result = /\/(*|node|way|relation)(:?\[(.*)=(.*)\])*/.exec(url);
xp.object=result[1];
for(i=2;i<=result.length;i++){
if(result[i]==="bbox"){
xp.bbox = parseBboxValues(result[i+1]);
} else {
xp.tag ={};
xp.tag.keys = parseKeyList(result[i]);
xp.tag.values = parseKeyList(result[i+1]);
}
i++;
}
}
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