Captures dont work with +/* quantifiers.

[AkashKarnatak]

I want to create a custom textobject for c and cpp which will select all the statements inside function body excluding function parenthesis. I have added the below query search to textobjects.scm, but nvim-treesitter query seach does not work as expected. I am facing similar issue with nvim-treesitter/playground as well.

(function_definition
  body:  (compound_statement
              ("{" (_)* @function.inner . "}"))?) @function.outer

Steps to reproduce the behavior:

1. Create a file foo.c
2. Paste the following contents in foo.c

int foo(int x) {
  int a = 3;
  int b = 4;
  return x + 1;
}

3. Install nvim-treesitter/playground
4. In the query editor paste the following

(function_definition
  body:  (compound_statement
              ("{" (_)* @function.inner . "}"))?) @function.outer

@function.inner incorrectly highlights only the last statement inside function parenthesis.

whereas @function.inner should highlight all the statements inside parenthesis.

Output of :checkhealth nvim_treesitter

health#nvim_treesitter#check

Installation

• OK: tree-sitter found 0.20.0 (parser generator, only needed for :TSInstallFromGrammar)
• OK: node found v16.6.1 (only needed for :TSInstallFromGrammar)
• OK: git executable found.
• OK: cc executable found. Selected from { vim.NIL, "cc", "gcc", "clang", "cl" }
• OK: Neovim was compiled with tree-sitter runtime ABI version 13 (required >=13). Parsers must be compatible with runtime ABI.

Parser/Features H L F I J

• ocaml_interface✓ ✓ ✓ . ✓
• beancount ✓ . ✓ . .
• python ✓ ✓ ✓ ✓ ✓
• sparql ✓ ✓ ✓ ✓ ✓
• comment ✓ . . . .
• lua ✓ ✓ ✓ ✓ ✓
• ocaml ✓ ✓ ✓ . ✓
• go ✓ ✓ ✓ ✓ ✓
• ql ✓ ✓ . ✓ ✓
• json ✓ ✓ ✓ ✓ .
• jsdoc ✓ . . . .
• ledger ✓ . ✓ ✓ ✓
• php ✓ ✓ ✓ ✓ ✓
• clojure ✓ ✓ ✓ . ✓
• supercollider ✓ ✓ ✓ ✓ ✓
• heex ✓ . ✓ ✓ ✓
• typescript ✓ ✓ ✓ ✓ ✓
• fennel ✓ ✓ . . ✓
• query ✓ ✓ ✓ ✓ ✓
• cpp ✓ ✓ ✓ ✓ ✓
• vue ✓ . ✓ . ✓
• latex ✓ . ✓ . ✓
• rst ✓ ✓ . . ✓
• css ✓ . ✓ ✓ ✓
• glimmer ✓ . . . .
• erlang . . . . .
• regex ✓ . . . .
• svelte ✓ . ✓ ✓ ✓
• c ✓ ✓ ✓ ✓ ✓
• fortran ✓ . ✓ ✓ .
• teal ✓ ✓ ✓ ✓ ✓
• java ✓ ✓ . ✓ ✓
• gomod ✓ . . . .
• dart ✓ ✓ . ✓ ✓
• verilog ✓ ✓ ✓ . ✓
• bash ✓ ✓ ✓ . ✓
• yaml ✓ ✓ ✓ ✓ ✓
• julia ✓ ✓ ✓ ✓ ✓
• vim ✓ . . . ✓
• cmake ✓ . ✓ . .
• turtle ✓ ✓ ✓ ✓ ✓
• zig ✓ . ✓ ✓ ✓
• html ✓ ✓ ✓ ✓ ✓
• bibtex ✓ . ✓ ✓ .
• r ✓ ✓ . . .
• tsx ✓ ✓ ✓ ✓ ✓
• yang ✓ . ✓ . .
• javascript ✓ ✓ ✓ ✓ ✓
• surface ✓ . ✓ ✓ ✓
• godotResource ✓ ✓ ✓ . .
• c_sharp ✓ ✓ ✓ . ✓
• commonlisp ✓ ✓ ✓ . .
• gdscript ✓ ✓ . . ✓
• elixir ✓ ✓ ✓ ✓ ✓
• cuda ✓ ✓ ✓ ✓ ✓
• haskell ✓ . . . ✓
• ocamllex ✓ . . . ✓
• kotlin ✓ . . . ✓
• ruby ✓ ✓ ✓ ✓ ✓
• fish ✓ ✓ ✓ ✓ ✓
• devicetree ✓ ✓ ✓ ✓ ✓
• scala . . . . .
• dockerfile ✓ . . . ✓
• rust ✓ ✓ ✓ ✓ ✓
• swift . . . . .
• toml ✓ ✓ ✓ ✓ ✓
• tlaplus ✓ . ✓ . ✓
• elm . . . . .
• jsonc ✓ ✓ ✓ ✓ ✓
• graphql ✓ . . ✓ ✓
• nix ✓ ✓ ✓ . ✓
• scss ✓ . . ✓ .
• hcl ✓ . ✓ ✓ ✓

Legend: H[ighlight], L[ocals], F[olds], I[ndents], In[j]ections +) multiple parsers found, only one will be used x) errors found in the query, try to run :TSUpdate {lang}

Output of nvim --version

NVIM v0.5.0 Build type: Release LuaJIT 2.0.5 Compilation: /usr/bin/cc -march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -fstack-clash-protection -fcf-protection -Wp,-U_FORTIFY_SOURCE -Wp,-D_FORTIFY_SOURCE=1 -DNVIM_TS_HAS_SET_MATCH_LIMIT -O2 -DNDEBUG -Wall -Wextra -pedantic -Wno-unused-parameter -Wstrict-prototypes -std=gnu99 -Wshadow -Wconversion -Wmissing-prototypes -Wimplicit-fallthrough -Wvla -fstack-protector-strong -fno-common -fdiagnostics-color=always -DINCLUDE_GENERATED_DECLARATIONS -D_GNU_SOURCE -DNVIM_MSGPACK_HAS_FLOAT32 -DNVIM_UNIBI_HAS_VAR_FROM -DMIN_LOG_LEVEL=3 -I/build/neovim/src/neovim-0.5.0/build/config -I/build/neovim/src/neovim-0.5.0/src -I/usr/include -I/build/neovim/src/neovim-0.5.0/build/src/nvim/auto -I/build/neovim/src/neovim-0.5.0/build/include Compiled by builduser

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

I have also tested this on neovim nightly 0.6.0+dev+43+g02bf251bb-1. I am facing the same issue.

[stsewd]

Hi, currently the quantifier operators (*, +) aren't supported.

[theHamsta]

This is a upstream problem https://github.com/neovim/neovim/pull/17099