I am trying to check if a string is a valid deep link from Waze Live Map. A Waze Live Map deep link looks something like this:
https://www.waze.com/ul?place=ChIJj61dQgK6j4AR4GeTYWZsKWw&ll=37.42199990%2C-122.08405750&navigate=yes
Given a string, I want to know if it is a valid Waze live map link. Most important, I want to know if it has the longitude and latitude at least.
I have tried the following:
String str = 'https://www.waze.com/ul?place=ChIJj61dQgK6j4AR4GeTYWZsKWw&ll=37.42199990%2C-122.08405750&navigate=yes';
var wazeUrlPattern = r"https:\/\/www.waze.com\/ul\?ll\=(.)*([1-9]+\.[1-9]+)%2C([1-9]+\.[1-9]+)(.)?";
bool valid = new RegExp(wazeUrlPattern, caseSensitive:false).hasMatch(str);
if(!valid) {
print("The url is not valid waze live map link!");
return;
}
// Do something with the longitude and latitude and maybe other parameters
This is not working for me and I would like some help in figuring out the problem.
Use
https://www\.waze\.com/ul\?.*?&ll=(-?\d+\.\d+)%2C(-?\d+\.\d+)
See proof
Escape dots to match literal dots and you have ?ll while there is ?place and &ll= later in the URL. Also, longitude and latitude may have optional - in front.
EXPLANATION
NODE EXPLANATION
--------------------------------------------------------------------------------
https://www 'https://www'
--------------------------------------------------------------------------------
\. '.'
--------------------------------------------------------------------------------
waze 'waze'
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\. '.'
--------------------------------------------------------------------------------
com/ul 'com/ul'
--------------------------------------------------------------------------------
\? '?'
--------------------------------------------------------------------------------
.*? any character except \n (0 or more times
(matching the least amount possible))
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&ll= '&ll='
--------------------------------------------------------------------------------
( group and capture to \1:
--------------------------------------------------------------------------------
-? '-' (optional (matching the most amount
possible))
--------------------------------------------------------------------------------
\d+ digits (0-9) (1 or more times (matching
the most amount possible))
--------------------------------------------------------------------------------
\. '.'
--------------------------------------------------------------------------------
\d+ digits (0-9) (1 or more times (matching
the most amount possible))
--------------------------------------------------------------------------------
) end of \1
--------------------------------------------------------------------------------
%2C '%2C'
--------------------------------------------------------------------------------
( group and capture to \2:
--------------------------------------------------------------------------------
-? '-' (optional (matching the most amount
possible))
--------------------------------------------------------------------------------
\d+ digits (0-9) (1 or more times (matching
the most amount possible))
--------------------------------------------------------------------------------
\. '.'
--------------------------------------------------------------------------------
\d+ digits (0-9) (1 or more times (matching
the most amount possible))
--------------------------------------------------------------------------------
) end of \2