Text copied from from Serial Monitor has missing line endings

[per1234]

Describe the bug

It is sometimes useful to copy the text that was printed by an Arduino board to Serial Monitor. For example, I sometimes copy CSV-style data into a spreadsheet program when I want to do further manipulation and analysis.

🐛 This is currently not possible to do with any multi-line text because the copied content has missing (or perhaps non-standard) line endings.

To Reproduce

1. Upload a sketch that prints multiple lines of text to serial:

   void setup() {
     Serial.begin(9600);
   }
   void loop() {
     Serial.println("hello");
     delay(1000);
   }

2. Open the Serial Monitor view in the Arduino IDE (Tools > Serial Monitor).
3. Select multiple lines of the text that was printed in the Serial Monitor view.
4. Paste it into a text editor or spreadsheet program.
   🐛 The line endings are not present:

   hellohellohello
   

Expected behavior

Text copied from Serial Monitor has standard line endings.

Arduino IDE version

2.0.0-rc3

Operating system

Windows, Linux

Operating system version

Windows 10, Ubuntu 20.04

Additional context

After copying the following Serial Monitor output:

a
a
a

This command reveals that there are no line endings:

$ xclip -selection clipboard -out | xxd -p

616161

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I'm not sure why, but I do get line breaks when I paste the text to the Arduino Forum (Discourse) composer field. In that case, the problem is opposite because I get double spaced text.

But when pasting to VS Code, Notepad++, LibreOffice Calc, GitHub comment field, etc., even a fenced code block on the forum, I get no line breaks.

---

Related:

• Replace the serial monitor view with a monaco editor #105

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Originally reported at:

• https://forum.arduino.cc/t/serial-monitor/698844
• https://forum.arduino.cc/t/serial-monitor-text-copying-not-quite-right/938730
• https://forum.arduino.cc/t/each-day-a-new-problem/937997/3
• Garbage output in Serial Monitor when using ESP8266 via FTDI #427 (comment)
• https://forum.arduino.cc/t/text-selection-serial-monitor/1005262

[KurtE]

I just started playing with the IDE 2 and ran into this as well.

This happens with Teensy Micromod connected as hardware COM Port COM115. Will try it again once the plugable Serial monitor code is working and using the Teensy specific plugin.

[per1234]

Fixed by #943