ts$ on an equation environment can be slow or hang #2432
Description
Description
On neovim 0.7.2, if the document has a lot of math environments and ones tries to toggle the delimiter using ts$ on an equation environment near the end of the docuemnt, it can be very slow or hang. It works fine when acting on $$ or [ ] delimiters. I sometimes get a trace like this:
E132: Function call depth is higher than 'maxfuncdepth'
Error detected while processing function <SNR>93_operator_function[6]..vimtex#env#toggle_math[1]..vimtex#env#get_surrounding[18]..vimtex#delim#get_surrounding[7]..vimtex#delim#get_prev[1]..<SNR>90_get_delim[77]..<SNR>90_parser_tex[46].. [...]
E712: Argument of extend() must be a List or Dictionary
Error detected while processing function <SNR>93_operator_function[6]..vimtex#env#toggle_math[1]..vimtex#env#get_surrounding[18]..vimtex#delim#get_surrounding[7]..vimtex#delim#get_prev[1]..<SNR>90_get_delim[77]..<SNR>90_parser_tex[46].. [...]
neovim --version
NVIM v0.7.2
Build type: RelWithDebInfo
LuaJIT 2.1.0-beta3
Compilation: /usr/bin/gcc -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -Wp,-U_FORTIFY_SOURCE -Wp,-D_FORTIFY_SOURCE=1 -DNVIM_TS_HAS_SET_MATCH_LIMIT -DNVIM_TS_HAS_SET_ALLOCATOR -O2 -g -Og -g -Wall -Wextra -pedantic -Wno-unused-parameter -Wstrict-prototypes -std=gnu99 -Wshadow -Wconversion -Wdouble-promotion -Wmissing-noreturn -Wmissing-format-attribute -Wmissing-prototypes -Wimplicit-fallthrough -Wsuggest-attribute=pure -Wsuggest-attribute=const -Wsuggest-attribute=malloc -Wsuggest-attribute=cold -Wvla -fstack-protector-strong -fno-common -fdiagnostics-color=auto -DINCLUDE_GENERATED_DECLARATIONS -D_GNU_SOURCE -DNVIM_MSGPACK_HAS_FLOAT32 -DNVIM_UNIBI_HAS_VAR_FROM -DMIN_LOG_LEVEL=3 -I/builddir/build/BUILD/neovim-0.7.2/redhat-linux-build/config -I/builddir/build/BUILD/neovim-0.7.2/src -I/usr/include -I/usr/include/luajit-2.1 -I/builddir/build/BUILD/neovim-0.7.2/redhat-linux-build/src/nvim/auto -I/builddir/build/BUILD/neovim-0.7.2/redhat-linux-build/include
Compiled by mockbuild@koji
Features: +acl +iconv +tui
See ":help feature-compile"
system vimrc file: "$VIM/sysinit.vim"
fall-back for $VIM: "/usr/share/nvim"
Run :checkhealth for more info
~/.config/nvim/init.vim
lua require('plugins')
~/.config/nvim/lua/plugins.lua
return require('packer').startup(function()
-- Packer can manage itself
use 'wbthomason/packer.nvim'
-- Simple plugins can be specified as strings
use 'lervag/vimtex'
end)
Steps to reproduce
mv minimal.txt minimal.texnvim minimal.texGts$
Expected behavior
One should get $equation$ on the last line instantaneously.
Actual behavior
Vim hangs or needs a long time to change the math delimiter
Do you use a latexmkrc file?
No / not relevant here
VimtexInfo
1 System info:
2 OS: Linux 5.18.9-200.fc36.x86_64
3 Vim version: NVIM v0.7.2
4 Has clientserver: true
5 Servername: /tmp/nvimUKR8nA/0
6
7 VimTeX project: minimal
8 base: minimal.tex
9 root: .
10 tex: .
11 main parser: current file
12 document class:
13 compiler: latexmk
14 engine: -pdf
15 options:
16 -verbose
17 -file-line-error
18 -synctex=1
19 -interaction=nonstopmode
20 callback: 1
21 continuous: 1
22 executable: latexmk
23 viewer: General
24 qf method: LaTeX logfile