修改Grammar.js的parse_SIP_URI方法（大概在2886行）
function parse_SIP_URI() {
var result0, result1, result2, result3, result4, result5;
var pos0, pos1;
pos0 = pos;
pos1 = pos;
result0 = parse_uri_scheme();
if (result0 !== null) {
if (input.charCodeAt(pos) === 58) {
result1 = ":";
pos++;
} else {
result1 = null;
if (reportFailures === 0) {
matchFailed("\":\"");
}
}
if (result1 !== null) {
result2 = parse_userinfo();
result2 = result2 !== null ? result2 : "";
if (result2 !== null) {
result3 = parse_hostport();
if (result3 !== null) {
result4 = parse_uri_parameters();
if (result4 !== null) {
result5 = parse_headers();
result5 = result5 !== null ? result5 : "";
if (result5 !== null) {
result0 = [result0, result1, result2, result3, result4, result5];
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
} else {
result0 = null;
pos = pos1;
}
if (result0 !== null) {
result0 = (function(offset) {
var header;
try {
data.uri = new URI(data.scheme, data.user, data.host, data.port, data.uri_params, data.uri_headers);
delete data.scheme;
delete data.user;
delete data.host;
delete data.host_type;
delete data.port;
delete data.uri_params;
if (startRule === 'SIP_URI') { data = data.uri;}
} catch(e) {
data = -1;
}})(pos0);
}
if (result0 === null) {
pos = pos0;
}
// 以下代码为新加
if(result0 === null){
if(startRule === 'SIP_URI'){
if(input.includes('@')){
var t = input.split(/:|@/g);
data = new URI(t[0], t[1], t[2]);
result0 = undefined;
pos = input.length;
}
}else if(startRule === 'From' || startRule === 'To'){
var t = input.split(/<|>/g);
data.tag = t[2].split('=')[1];
t = t[1].split(/:|@/g);
data.uri = new URI(t[0], t[1], t[2]);
delete data.scheme;
delete data.user;
delete data.host;
delete data.host_type;
delete data.port;
delete data.uri_params;
result0 = undefined;
pos = input.split('>')[0].length;
} else if(startRule === 'Contact'){
}
}
// 以上代码为新加
return result0;
}