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replace all submodule documentation with flags documentation
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@ -36,12 +36,14 @@ # Installation
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build from source.
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```
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git clone --recurse-submodules --shallow-submodules -j8 https://github.com/helix-editor/helix
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git clone https://github.com/helix-editor/helix
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cd helix
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cargo install --path helix-term
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hx --fetch-grammars
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hx --build-grammars
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```
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This will install the `hx` binary to `$HOME/.cargo/bin`.
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This will install the `hx` binary to `$HOME/.cargo/bin` and build tree-sitter grammars.
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Helix also needs its runtime files so make sure to copy/symlink the `runtime/` directory into the
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config directory (for example `~/.config/helix/runtime` on Linux/macOS, or `%AppData%/helix/runtime` on Windows).
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@ -56,6 +58,7 @@ # Installation
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[![Packaging status](https://repology.org/badge/vertical-allrepos/helix.svg)](https://repology.org/project/helix/versions)
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## MacOS
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Helix can be installed on MacOS through homebrew via:
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```
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@ -131,6 +131,7 @@ ### `[editor.search]` Section
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## LSP
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To display all language server messages in the status line add the following to your `config.toml`:
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```toml
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[lsp]
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display-messages = true
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@ -1,45 +1,68 @@
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# Adding languages
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## Submodules
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## Language configuration
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To add a new language, you should first add a tree-sitter submodule. To do this,
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you can run the command
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```sh
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git submodule add -f <repository> helix-syntax/languages/tree-sitter-<name>
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```
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For example, to add tree-sitter-ocaml you would run
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```sh
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git submodule add -f https://github.com/tree-sitter/tree-sitter-ocaml helix-syntax/languages/tree-sitter-ocaml
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```
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Make sure the submodule is shallow by doing
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```sh
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git config -f .gitmodules submodule.helix-syntax/languages/tree-sitter-<name>.shallow true
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```
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or you can manually add `shallow = true` to `.gitmodules`.
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## languages.toml
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Next, you need to add the language to the [`languages.toml`][languages.toml] found in the root of
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the repository; this `languages.toml` file is included at compilation time, and
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is distinct from the `language.toml` file in the user's [configuration
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To add a new language, you need to add a `language` entry to the
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[`languages.toml`][languages.toml] found in the root of the repository;
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this `languages.toml` file is included at compilation time, and is
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distinct from the `languages.toml` file in the user's [configuration
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directory](../configuration.md).
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```toml
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[[language]]
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name = "mylang"
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scope = "scope.mylang"
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injection-regex = "^mylang$"
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file-types = ["mylang", "myl"]
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comment-token = "#"
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indent = { tab-width = 2, unit = " " }
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```
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These are the available keys and descriptions for the file.
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| Key | Description |
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| ---- | ----------- |
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| name | The name of the language |
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| scope | A string like `source.js` that identifies the language. Currently, we strive to match the scope names used by popular TextMate grammars and by the Linguist library. Usually `source.<name>` or `text.<name>` in case of markup languages |
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| injection-regex | regex pattern that will be tested against a language name in order to determine whether this language should be used for a potential [language injection][treesitter-language-injection] site. |
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| file-types | The filetypes of the language, for example `["yml", "yaml"]` |
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| shebangs | The interpreters from the shebang line, for example `["sh", "bash"]` |
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| roots | A set of marker files to look for when trying to find the workspace root. For example `Cargo.lock`, `yarn.lock` |
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| auto-format | Whether to autoformat this language when saving |
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| diagnostic-severity | Minimal severity of diagnostic for it to be displayed. (Allowed values: `Error`, `Warning`, `Info`, `Hint`) |
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| comment-token | The token to use as a comment-token |
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| indent | The indent to use. Has sub keys `tab-width` and `unit` |
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| config | Language server configuration |
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| Key | Description |
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| ---- | ----------- |
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| `name` | The name of the language |
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| `scope` | A string like `source.js` that identifies the language. Currently, we strive to match the scope names used by popular TextMate grammars and by the Linguist library. Usually `source.<name>` or `text.<name>` in case of markup languages |
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| `injection-regex` | regex pattern that will be tested against a language name in order to determine whether this language should be used for a potential [language injection][treesitter-language-injection] site. |
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| `file-types` | The filetypes of the language, for example `["yml", "yaml"]`. Extensions and full file names are supported. |
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| `shebangs` | The interpreters from the shebang line, for example `["sh", "bash"]` |
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| `roots` | A set of marker files to look for when trying to find the workspace root. For example `Cargo.lock`, `yarn.lock` |
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| `auto-format` | Whether to autoformat this language when saving |
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| `diagnostic-severity` | Minimal severity of diagnostic for it to be displayed. (Allowed values: `Error`, `Warning`, `Info`, `Hint`) |
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| `comment-token` | The token to use as a comment-token |
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| `indent` | The indent to use. Has sub keys `tab-width` and `unit` |
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| `config` | Language server configuration |
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| `grammar` | The tree-sitter grammar to use (defaults to the value of `name`) |
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## Grammar configuration
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If a tree-sitter grammar is available for the language, add a new `grammar`
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entry to `languages.toml`.
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```toml
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[[grammar]]
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name = "mylang"
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source = { git = "https://github.com/example/mylang", rev = "a250c4582510ff34767ec3b7dcdd3c24e8c8aa68" }
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```
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Grammar configuration takes these keys:
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| Key | Description |
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| --- | ----------- |
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| `name` | The name of the tree-sitter grammar |
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| `path` | A path within the grammar directory which should be built. Some grammar repositories host multiple grammars (for example `tree-sitter-typescript` and `tree-sitter-ocaml`) in subdirectories. This key is used to point `hx --build-grammars` to the correct path for compilation. When ommitted, the root of the grammar directory is used |
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| `source` | The method of fetching the grammar - a table with a schema defined below |
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Where `source` is a table with either these keys when using a grammar from a
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git repository:
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| Key | Description |
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| --- | ----------- |
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| `git` | A git remote URL from which the grammar should be cloned |
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| `rev` | The revision (commit hash or tag) which should be fetched |
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Or a `path` key with an absolute path to a locally available grammar directory.
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## Queries
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@ -51,18 +74,14 @@ ## Queries
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> NOTE: When evaluating queries, the first matching query takes
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precedence, which is different from other editors like neovim where
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the last matching query supercedes the ones before it. See
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the last matching query supersedes the ones before it. See
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[this issue][neovim-query-precedence] for an example.
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## Common Issues
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- If you get errors when building after switching branches, you may have to remove or update tree-sitter submodules. You can update submodules by running
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```sh
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git submodule sync; git submodule update --init
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```
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- Make sure to not use the `--remote` flag. To remove submodules look inside the `.gitmodules` and remove directories that are not present inside of it.
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- If you get errors when running after switching branches, you may have to update the tree-sitter grammars. Run `hx --fetch-grammars` to fetch the grammars and `hx --build-grammars` to build any out-of-date grammars.
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- If a parser is segfaulting or you want to remove the parser, make sure to remove the submodule *and* the compiled parser in `runtime/grammar/<name>.so`
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- If a parser is segfaulting or you want to remove the parser, make sure to remove the compiled parser in `runtime/grammar/<name>.so`
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- The indents query is `indents.toml`, *not* `indents.scm`. See [this](https://github.com/helix-editor/helix/issues/114) issue for more information.
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@ -44,7 +44,7 @@ ### Fedora Linux
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## Build from source
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```
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git clone --recurse-submodules --shallow-submodules -j8 https://github.com/helix-editor/helix
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git clone https://github.com/helix-editor/helix
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cd helix
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cargo install --path helix-term
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```
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@ -54,3 +54,9 @@ ## Build from source
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Helix also needs it's runtime files so make sure to copy/symlink the `runtime/` directory into the
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config directory (for example `~/.config/helix/runtime` on Linux/macOS). This location can be overriden
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via the `HELIX_RUNTIME` environment variable.
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## Building tree-sitter grammars
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Tree-sitter grammars must be fetched and compiled if not pre-packaged.
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Fetch grammars with `hx --fetch-grammars` (requires `git`) and compile them
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with `hx --build-grammars` (requires a C compiler).
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Changes made to the `languages.toml` file in a user's [configuration directory](./configuration.md) are merged with helix's defaults on start-up, such that a user's settings will take precedence over defaults in the event of a collision. For example, the default `languages.toml` sets rust's `auto-format` to `true`. If a user wants to disable auto-format, they can change the `languages.toml` in their [configuration directory](./configuration.md) to make the rust entry read like the example below; the new key/value pair `auto-format = false` will override the default when the two sets of settings are merged on start-up:
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```
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```toml
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# in <config_dir>/helix/languages.toml
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[[language]]
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name = "rust"
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auto-format = false
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```
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## Tree-sitter grammars
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Tree-sitter grammars can also be configured in `languages.toml`:
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```toml
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# in <config_dir>/helix/languages.toml
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[[grammar]]
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name = "rust"
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source = { git = "https://github.com/tree-sitter/tree-sitter-rust", rev = "a250c4582510ff34767ec3b7dcdd3c24e8c8aa68" }
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[[grammar]]
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name = "c"
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source = { path = "/path/to/tree-sitter-c" }
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```
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If a user has a `languages.toml`, only the grammars in that `languages.toml` are evaluated when running `hx --fetch-grammars` and `hx --build-grammars`. Otherwise the [default `languages.toml`](https://github.com/helix-editor/helix/blob/master/languages.toml) is used.
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@ -25,7 +25,7 @@ pub fn user_lang_config() -> Result<toml::Value, toml::de::Error> {
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pub fn default_syntax_loader() -> crate::syntax::Configuration {
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default_lang_config()
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.try_into()
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.expect("Could not serialize built-in language.toml")
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.expect("Could not serialize built-in languages.toml")
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}
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/// Syntax configuration loader based on user configured languages.toml.
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pub fn user_syntax_loader() -> Result<crate::syntax::Configuration, toml::de::Error> {
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