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Matthew Hughes c06e3d6f81 fix(termdebug): evaluate display with gdb pretty print #39453
Calling `set print pretty on` in GDB will:

> Cause GDB to print structures in an indented format with one member
per line

However, `termdebug` just renders the newlines as raw `\n` characters.
This is a regression of[1]. Glancing through the history it looks to
have been caused by cd1b14f027 which
removed the output splitting when displaying the eval results, so this
changes adds that behaviour back.

As a quick reproduction/test, compile the following C program:

```c

struct Foo {
    char *name;
};

int main(void) {
    struct Foo f = {"hello"};
    printf("%s\n", f.name);

    return 0;
}
```

Then launch `nvim` and run:

    :Termdebug main
    :Gdb
    (gdb) set print pretty on
    (gdb) break main
    (gdb) run
    :Source

Place the cursor on the `f` variable and call `:Evaluate`. Before this change:

![](https://github.com/user-attachments/assets/51318e1e-9cdd-43ab-aa35-4aaad1d9f65f)

With this change:

![](https://github.com/user-attachments/assets/33874679-21b4-4d07-98ef-c2c9e9d19dd6)

Link: https://github.com/neovim/neovim/issues/10020 [1]
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Neovim

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Neovim is a project that seeks to aggressively refactor Vim in order to:

See the Introduction wiki page and Roadmap for more information.

Features

See :help nvim-features for the full list, and :help news for noteworthy changes in the latest version!

Install from package

Pre-built packages for Windows, macOS, and Linux are found on the Releases page.

Managed packages are in Homebrew, Debian, Ubuntu, Fedora, Arch Linux, Void Linux, Gentoo, and more!

Install from source

See BUILD.md and supported platforms for details.

The build is CMake-based, but a Makefile is provided as a convenience. After installing the dependencies, run the following command.

make CMAKE_BUILD_TYPE=RelWithDebInfo
sudo make install

To install to a non-default location:

make CMAKE_BUILD_TYPE=RelWithDebInfo CMAKE_INSTALL_PREFIX=/full/path/
make install

CMake hints for inspecting the build:

  • cmake --build build --target help lists all build targets.
  • build/CMakeCache.txt (or cmake -LAH build/) contains the resolved values of all CMake variables.
  • build/compile_commands.json shows the full compiler invocations for each translation unit.

Transitioning from Vim

See :help nvim-from-vim for instructions.

Project layout

├─ cmake/           CMake utils
├─ cmake.config/    CMake defines
├─ cmake.deps/      subproject to fetch and build dependencies (optional)
├─ runtime/         plugins and docs
├─ src/nvim/        application source code (see src/nvim/README.md)
│  ├─ api/          API subsystem
│  ├─ eval/         Vimscript subsystem
│  ├─ event/        event-loop subsystem
│  ├─ generators/   code generation (pre-compilation)
│  ├─ lib/          generic data structures
│  ├─ lua/          Lua subsystem
│  ├─ msgpack_rpc/  RPC subsystem
│  ├─ os/           low-level platform code
│  └─ tui/          built-in UI
└─ test/            tests (see test/README.md)

License

Neovim contributions since b17d96 are licensed under the Apache 2.0 license, except for contributions copied from Vim (identified by the vim-patch token). See LICENSE.txt for details.

Description
Vim-fork focused on extensibility and usability
Readme 473 MiB
Languages
Vim Script 40.2%
Lua 32%
C 27%
CMake 0.4%
Zig 0.1%
Other 0.1%