Applescript for turning desktop Gmail link into iOS Gmail app link - string

Question

I'm looking to build an Applescript that will take a desktop Gmail message link as input, and output a URL that will work on iOS to open the same message in the iOS Gmail app.
Here's a typical Gmail URL:
https://mail.google.com/mail/u/1/?zx=tso6hataagpp#inbox/143c5ddc34313e1f
And here's what that same URL would need to look like to work on iOS:
googlegmail:///cv=143c5ddc34313e1f/accountId=2
A couple notes:
The important part (the thread identifier) is the last part of the string in the original desktop URL. That's what needs to go after cv= in the mobile URL. However because Gmail allows multiple account log-in, we also need to note the account ID number after the /u/, which on the desktop is 1, but for mobile is 2. It looks like the desktop URLs are numbered starting at 0, while the mobile URLs are numbered starting at 1, based on which account you logged into first. So we need to increment the account ID number by 1 for the iOS URL.
Also, I'm not sure what the "?zx=tso6hataagpp" is before #inbox; I find that sometimes my desktop Gmail URLs include that part, other times they don't (but still include #inbox). I don't think it matters though, since the important parts we want are at the end of the string, and the number after the always-consistent "mail.google.com/mail/u/".
Ideally the Applescript would look at the clipboard for a desktop Gmail URL, and if it found one, it would output that same URL, then a line break, then the iOS URL immediately following it, like so:
https://mail.google.com/mail/u/1/?zx=tso6hataagpp#inbox/143c5ddc34313e1f
googlegmail:///cv=143c5ddc34313e1f/accountId=2
Any Applescript gurus out there that can show me how to hack this together?

Answer 1

The simplest way I can think of is:
This gets fixed path components. i.e component 5 and the last item
--https://mail.google.com/mail/u/1/?zx=tso6hataagpp#inbox/143c5ddc34313e1f
set pathUrl to (the clipboard)
set pathComponents to words of pathUrl
if item 1 of pathComponents is "https" and item 2 of pathComponents is "mail.google.com" then
set composed to pathUrl & return & "googlegmail:///cv=" & last item of pathComponents & "/accountId=" & (((item 5 of pathComponents) as number) + 1)
end if
This makes sure it always get the component ( account) after the "u" regardless of where it is.
You could do the same for the message id. by using "inbox"
set composed to ""
--set pathUrl to "https://mail.google.com/mail/u/1/?zx=tso6hataagpp#inbox/143c5ddc34313e1f"
set pathUrl to (the clipboard)
set pathComponents to words of pathUrl
if item 1 of pathComponents is "https" and item 2 of pathComponents is "mail.google.com" then
repeat with i from 1 to number of items in pathComponents
set this_item to item i of pathComponents
if this_item is "u" then
set this_item to item (i + 1) of pathComponents
set composed to pathUrl & return & "googlegmail:///cv=" & last item of pathComponents & "/accountId=" & ((this_item as number) + 1)
exit repeat
end if
end repeat
end if
composed

Answer 2

Try the following - delegates the parsing to bash via do shell script.
# Get text from clipboard.
# Test with: "https://mail.google.com/mail/u/1/?zx=tso6hataagpp#inbox/143c5ddc34313e1f"
set hLink to (the clipboard as text)
# Parse the link to extract the information of interest.
set parseResult to do shell script ¬
"[[ " & quoted form of hLink & " =~ /u/([0-9]+)/.+#inbox/(.+)$ ]] &&
printf '%s\\n' \"${BASH_REMATCH[1]}\" \"${BASH_REMATCH[2]}\""
# Synthesize the Gmail for iOS link.
set gmLink to "googlemail:///cv=" & ¬
(paragraph 2 of parseResult) & "/accountId=" & (1 + (paragraph 1 of parseResult))
# Synthesize the result
set res to hLink & linefeed & gmLink
# Put the result back on the clipboard.
set the clipboard to res