prompt-toolkit / prompt-toolkit/python-prompt-toolkit
Cannot embed vt100 sequences in a prompt which send hidden information to the terminal
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Description
I using the emacs-libvterm terminal emulator and run a prompt-toolkit based REPL inside it.
For interaction with the terminal "host" I need to issue special vt100 sequences at the end of each prompt-toolkit prompt. I try to issue these sequences lkie this:
vtescape = '\033]{}\033\\&'
infostr = '51;A{}@{}:{}'.format(whoami, hostname, pwd) # whoami, hostname and pwd are strings variables
vtinfo = vtescape.format(infostr)
text = session.prompt('> '+vtinfo)
However prompt_toolkit seems to filter out the escape bits of it, so that the information is not hidden as the terminal requires it.
How can I send exactly these escape sequences at the end of each prompt?
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Research direction
Start at the session.prompt() call and trace how prompt-toolkit processes the prompt text and terminal escape sequences. Reproduce the behavior with the provided emacs-libvterm example, then verify that the required sequences reach the terminal unchanged while remaining hidden from the visible prompt.
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Assessment
- Tech stack
- python
- Domain
- cli
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100