How to type text in Russian from clipboard using applescript without changing the system language on the Mac?

I automate the filling of forms in Latin alphabet, but in one place there is a field where i need to type the text in Russian.

Before filling in, I copy the desired word in Russian and I want to type it from the clipboard without changing system language / encoding / charset.

In other words. Just type a word from the clipboard in Russian letters and continue working with the Latin alphabet.

How can this be done using applescript?

set r to the clipboard
write_string(r as text)

on write_string(the_string)
    tell application "System Events"
        
        repeat with the_character in the_string
            keystroke the_character
            delay (random number from 0.05 to 0.25)
        end repeat
        
    end tell
end write_string

Shell i use this part like that or something?

write_string(r as text) encode('utf8')?

The solution to just copy and paste the word in Russian does not work. It needs to be written.

Please, direct which way to dig. Any ideas?

Answer

This solution uses code written by jackjr300 in his answer: Is it possible to keystroke special characters in AppleScript?

Using Xcode, I created the command line tool TypeCharacters and copied it to /usr/local/bin/

I then incorporated it into the following example AppleScript code:

set the clipboard to "Русские персонажи & 日本語の文字"

set thisText to the clipboard

tell application "Safari" to activate
delay 0.5

my typeCharactersOf(thisText)

to typeCharactersOf(thisString)
    set theStringList to characters of thisString
    repeat with thisCharacter in theStringList
        do shell script ¬
            "/usr/local/bin/TypeCharacters " & ¬
            quoted form of thisCharacter
        delay (random number from 0.05 to 0.25)
    end repeat
end typeCharactersOf

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The output of which was:

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Notes:

I used Google Translate to translate “Russian characters” to Russian, Русские персонажи, and “Japanese characters” to Japanese, 日本語の文字.

Testing by writing to Safari at this website into an answer text box the results were the same regardless of what the input source was set to.

The example AppleScript code, shown above, was tested in Script Editor under macOS Catalina with Language & Region settings in System Preferences set to English (US) — Primary and two input sources in System Preferences > Keyboard > Input Sources, U.S. and Russian, and worked for me without issue¹.

• ¹ _{Assumes necessary and appropriate settings in System Preferences > Security & Privacy > Privacy have been set/addressed as needed.}

Code used from the linked answer to create the command line tool TypeCharacters in Xcode:

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        if (argc > 1) {
            NSString *theString = [NSString stringWithUTF8String:argv[1]];
            UniChar uChar;
            CGEventRef keyEvent = CGEventCreateKeyboardEvent(nil, 0, true);
            for (int i = 0; i < [theString length]; i++)
            {
                uChar = [theString characterAtIndex:i];
                CGEventKeyboardSetUnicodeString(keyEvent, 1, &uChar);
                CGEventPost(kCGHIDEventTap, keyEvent); // key down
                CGEventSetType(keyEvent, kCGEventKeyUp);
                CGEventPost(kCGHIDEventTap, keyEvent); // key up (type the character)
                CGEventSetType(keyEvent, kCGEventKeyDown);
                [NSThread sleepForTimeInterval:0.001]; // wait 1/1000 of second, no need of this line on my computer, I use 0.001 to be safe, increase it If you still have issues
            }
            CFRelease(keyEvent);
        }
    }
    return 0;
}

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_{Note: The example AppleScript code is just that and sans any included error handling does not contain any additional error handling as may be appropriate. The onus is upon the user to add any error handling as may be appropriate, needed or wanted. Have a look at the try statement and error statement in the AppleScript Language Guide. See also, Working with Errors. Additionally, the use of the delay command may be necessary between events where appropriate, e.g. delay 0.5, with the value of the delay set appropriately.}