Signature hints for certain Python libs truncated, no line breaks

[benchatt]

Issue Prelude

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• If filing a bug report, I have included the output of vim --version.
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• If filing a bug report, I have attached the contents of the logfiles using
  the :YcmToggleLogs command.
• If filing a bug report, I have included which OS (including specific OS
  version) I am using.
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  my issue, using vim -Nu /path/to/YCM/vimrc_ycm_minimal, including what I
  expected to happen and what actually happened.
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Issue Details

Note: thanks for looking into this, and for such a great tool.

• What did you do?

0. install python package playwright.
1. vim -Nu /path/to/YCM/ycm_vimrc_minimal
2. :edit test.py
3. Enter insert mode and type:

from playwright.sync_api import APIRequestContext

a = APIRequestContext()

a.get(

The signature docs for this package must be formatted differently than expected, because I'm seeing ^@ instead of line breaks where I would expect them. The signature hints are not shown in full, as they cut off after the line exceeds the width of the window.

If you made changes to vimrc_ycm_minimal, paste them here:

N/A

• What did you expect to happen?

Expected multiline signature help or line wrap.

• What actually happened?

Single-line hint, with ^@ instead of line breaks, cut off at the window width.

Diagnostic data

Output of vim --version

VIM - Vi IMproved 9.0 (2022 Jun 28, compiled May 13 2023 12:55:09)
macOS version - arm64
Included patches: 1-1550
Compiled by Homebrew
Huge version without GUI.  Features included (+) or not (-):
+acl               +file_in_path      +mouse_urxvt       -tag_any_white
+arabic            +find_in_path      +mouse_xterm       -tcl
+autocmd           +float             +multi_byte        +termguicolors
+autochdir         +folding           +multi_lang        +terminal
-autoservername    -footer            -mzscheme          +terminfo
-balloon_eval      +fork()            +netbeans_intg     +termresponse
+balloon_eval_term +gettext           +num64             +textobjects
-browse            -hangul_input      +packages          +textprop
++builtin_terms    +iconv             +path_extra        +timers
+byte_offset       +insert_expand     +perl              +title
+channel           +ipv6              +persistent_undo   -toolbar
+cindent           +job               +popupwin          +user_commands
-clientserver      +jumplist          +postscript        +vartabs
+clipboard         +keymap            +printer           +vertsplit
+cmdline_compl     +lambda            +profile           +vim9script
+cmdline_hist      +langmap           -python            +viminfo
+cmdline_info      +libcall           +python3           +virtualedit
+comments          +linebreak         +quickfix          +visual
+conceal           +lispindent        +reltime           +visualextra
+cryptv            +listcmds          +rightleft         +vreplace
+cscope            +localmap          +ruby              +wildignore
+cursorbind        +lua               +scrollbind        +wildmenu
+cursorshape       +menu              +signs             +windows
+dialog_con        +mksession         +smartindent       +writebackup
+diff              +modify_fname      +sodium            -X11
+digraphs          +mouse             +sound             -xfontset
-dnd               -mouseshape        +spell             -xim
-ebcdic            +mouse_dec         +startuptime       -xpm
+emacs_tags        -mouse_gpm         +statusline        -xsmp
+eval              -mouse_jsbterm     -sun_workshop      -xterm_clipboard
+ex_extra          +mouse_netterm     +syntax            -xterm_save
+extra_search      +mouse_sgr         +tag_binary        
-farsi             -mouse_sysmouse    -tag_old_static    
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
       defaults file: "$VIMRUNTIME/defaults.vim"
  fall-back for $VIM: "/opt/homebrew/share/vim"
Compilation: clang -c -I. -Iproto -DHAVE_CONFIG_H -DMACOS_X -DMACOS_X_DARWIN -g -O2 -D_REENTRANT -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 
Linking: clang -o vim -lm -lncurses -lsodium -liconv -lintl -framework AppKit -L/opt/homebrew/opt/lua/lib -llua5.4 -mmacosx-version-min=13.3 -fstack-protector-strong -L/opt/homebrew/opt/perl/lib/perl5/5.36/darwin-thread-multi-2level/CORE -lperl -L/opt/homebrew/opt/python@3.11/Frameworks/Python.framework/Versions/3.11/lib/python3.11/config-3.11-darwin -lpython3.11 -framework CoreFoundation -lruby.3.2 -L/opt/homebrew/Cellar/ruby/3.2.2/lib 

Output of YcmDebugInfo

Printing YouCompleteMe debug information...
-- Resolve completions: Up front
-- Client logfile: /var/folders/hj/9pmw116x6y5bx341rr0ns27w0000gn/T/ycm__6320hjg.log
-- Server Python interpreter: /Users/benchatterton/.pyenv/versions/3.10.8/Library/Frameworks/Python.framework/Versions/3.10/bin/python
-- Server Python version: 3.10.8
-- Server has Clang support compiled in: True
-- Clang version: clang version 16.0.1 (https://github.com/ycm-core/llvm f6d8fd76462bf638dd3368ddb7f60a23f82e8bad)
-- Extra configuration file found and loaded
-- Extra configuration path: /Users/benchatterton/.vim/bundle/YouCompleteMe/.ycm_extra_conf.py
-- Python completer debug information:
--   Python interpreter: /Users/benchatterton/.vim/bundle/YouCompleteMe/.venv/bin/python
--   Python root: /Users/benchatterton/.vim/bundle/YouCompleteMe
--   Python path: ['/Users/benchatterton/.vim/bundle/YouCompleteMe/python', '/Users/benchatterton/.vim/bundle/YouCompleteMe/third_party/requests-futures', '
/Users/benchatterton/.vim/bundle/YouCompleteMe/third_party/ycmd', '/Users/benchatterton/.vim/bundle/YouCompleteMe/third_party/requests_deps/idna', '/Users/b
enchatterton/.vim/bundle/YouCompleteMe/third_party/requests_deps/chardet', '/Users/benchatterton/.vim/bundle/YouCompleteMe/third_party/requests_deps/urllib3
/src', '/Users/benchatterton/.vim/bundle/YouCompleteMe/third_party/requests_deps/certifi', '/Users/benchatterton/.vim/bundle/YouCompleteMe/third_party/reque
sts_deps/requests', '/opt/homebrew/Cellar/python@3.10/3.10.11/Frameworks/Python.framework/Versions/3.10/lib/python310.zip', '/opt/homebrew/Cellar/python@3.1
0/3.10.11/Frameworks/Python.framework/Versions/3.10/lib/python3.10', '/Users/benchatterton/.vim/bundle/YouCompleteMe/third_party/python-future/src', '/opt/h
omebrew/Cellar/python@3.10/3.10.11/Frameworks/Python.framework/Versions/3.10/lib/python3.10/lib-dynload', '/Users/benchatterton/.vim/bundle/YouCompleteMe/.v
env/lib/python3.10/site-packages', '/opt/homebrew/opt/python-tk@3.10/libexec']
--   Python version: 3.10.11
--   Jedi version: 0.18.2
--   Parso version: 0.8.3
-- Server running at: http://127.0.0.1:51771
-- Server process ID: 66432
-- Server logfiles:
--   /var/folders/hj/9pmw116x6y5bx341rr0ns27w0000gn/T/ycmd_51771_stdout_qnp_ncyn.log
--   /var/folders/hj/9pmw116x6y5bx341rr0ns27w0000gn/T/ycmd_51771_stderr_o65znoxn.log
-- Semantic highlighting supported: True
-- Virtual text supported: True
-- Popup windows supported: True

Output of YcmDiags

No warnings or errors detected.

Output of git rev-parse HEAD in YouCompleteMe installation directory

f09c2f69f7fe4d6adf64396a5daa2736714f67a0
(YouCompleteMe) 

Contents of YCM, ycmd and completion engine logfiles

Link to my gist containing all of the log files listed by :YcmToggleLogs.

OS version, distribution, etc.

MacOS Ventura 13.4.1 (c), Apple silicon