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pub use encoding_rs as encoding;

pub mod auto_pairs;
pub mod case_conversion;
pub mod chars;
pub mod command_line;
pub mod comment;
pub mod completion;
pub mod config;
pub mod diagnostic;
pub mod diff;
pub mod doc_formatter;
pub mod editor_config;
pub mod fuzzy;
pub mod graphemes;
pub mod history;
pub mod increment;
pub mod indent;
pub mod line_ending;
pub mod macros;
pub mod match_brackets;
pub mod movement;
pub mod object;
mod position;
pub mod search;
pub mod selection;
pub mod snippets;
pub mod surround;
pub mod syntax;
pub mod test;
pub mod text_annotations;
pub mod textobject;
mod transaction;
pub mod uri;
pub mod wrap;

pub mod unicode {
    pub use unicode_general_category as category;
    pub use unicode_segmentation as segmentation;
    pub use unicode_width as width;
}

pub use helix_loader::find_workspace;

mod rope_reader;

pub use rope_reader::RopeReader;
pub use ropey::{self, str_utils, Rope, RopeBuilder, RopeSlice};

// pub use tendril::StrTendril as Tendril;
pub use smartstring::SmartString;

pub type Tendril = SmartString<smartstring::LazyCompact>;

#[doc(inline)]
pub use {regex, tree_house::tree_sitter};

pub use position::{
    char_idx_at_visual_offset, coords_at_pos, pos_at_coords, softwrapped_dimensions,
    visual_offset_from_anchor, visual_offset_from_block, Position, VisualOffsetError,
};
#[allow(deprecated)]
pub use position::{pos_at_visual_coords, visual_coords_at_pos};

pub use selection::{Range, Selection};
pub use smallvec::{smallvec, SmallVec};
pub use syntax::Syntax;

pub use completion::CompletionItem;
pub use diagnostic::Diagnostic;

pub use line_ending::{LineEnding, NATIVE_LINE_ENDING};
pub use transaction::{Assoc, Change, ChangeSet, Deletion, Operation, Transaction};

pub use uri::Uri;

pub use tree_house::Language;
; display: block; float: left; overflow: hidden; margin: 13px 0 0; padding: 7px; width: auto; } .markdown-body span.frame span img { display: block; float: left; } .markdown-body span.frame span span { clear: both; color: #CCCAC2; display: block; padding: 5px 0 0; } .markdown-body span.align-center { display: block; overflow: hidden; clear: both; } .markdown-body span.align-center>span { display: block; overflow: hidden; margin: 13px auto 0; text-align: center; } .markdown-body span.align-center span img { margin: 0 auto; text-align: center; } .markdown-body span.align-right { display: block; overflow: hidden; clear: both; } .markdown-body span.align-right>span { display: block; overflow: hidden; margin: 13px 0 0; text-align: right; } .markdown-body span.align-right span img { margin: 0; text-align: right; } .markdown-body span.float-left { display: block; margin-right: 13px; overflow: hidden; float: left; } .markdown-body span.float-left span { margin: 13px 0 0; } .markdown-body span.float-right { display: block; margin-left: 13px; overflow: hidden; float: right; } .markdown-body span.float-right>span { display: block; overflow: hidden; margin: 13px auto 0; text-align: right; } .markdown-body code, .markdown-body tt { margin: 0 2px; padding: 0px 5px; border: 1px solid #8A9199; background-color: #282E3B; border-radius: 3px; color: #CCCAC2; } .markdown-body code { white-space: nowrap; } .markdown-body pre>code { margin: 0; padding: 0; white-space: pre; border: none; background: transparent; } .markdown-body .highlight pre, .markdown-body pre { background-color: #282E3B; border: 1px solid #8A9199; font-size: 13px; line-height: 19px; overflow: auto; padding: 6px 10px; border-radius: 3px; } .markdown-body pre code, .markdown-body pre tt { margin: 0; padding: 0; background-color: transparent; border: none; } pre { line-height: 125%; } td.linenos .normal { color: #8a919966; background-color: transparent; padding-left: 5px; padding-right: 5px; } span.linenos { color: #8a919966; background-color: transparent; padding-left: 5px; padding-right: 5px; } td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; } span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; } .highlight .hll { background-color: #363C48 } .highlight .c { color: #6E7C8E } /* Comment */ .highlight .err { color: #FF6666 } /* Error */ .highlight .g { color: #CCCAC2 } /* Generic */ .highlight .k { color: #FFAD66 } /* Keyword */ .highlight .o { color: #F29E74 } /* Operator */ .highlight .ch { color: #6E7C8E } /* Comment.Hashbang */ .highlight .cm { color: #6E7C8E; font-style: italic } /* Comment.Multiline */ .highlight .cp { color: #FFAD66 } /* Comment.Preproc */ .highlight .cpf { color: #D5FF80 } /* Comment.PreprocFile */ .highlight .c1 { color: #6E7C8E; font-style: italic } /* Comment.Single */ .highlight .cs { color: #6E7C8E } /* Comment.Special */ .highlight .gd { color: #F27983 } /* Generic.Deleted */ .highlight .ge { color: #FFD173; font-style: italic } /* Generic.Emph */ .highlight .gr { color: #FF6666 } /* Generic.Error */ .highlight .gh { color: #FFD173; font-weight: bold } /* Generic.Heading */ .highlight .gi { color: #87D96C } /* Generic.Inserted */ .highlight .go { color: #D5FF80 } /* Generic.Output */ .highlight .gp { color: #F29E74 } /* Generic.Prompt */ .highlight .gs { color: #FFD173; font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #CCCAC2 } /* Generic.Subheading */ .highlight .gt { color: #FF6666 } /* Generic.Traceback */ .highlight .kc { color: #DFBFFF } /* Keyword.Constant */ .highlight .kd { color: #FFCC66 } /* Keyword.Declaration */ .highlight .kn { color: #FFAD66 } /* Keyword.Namespace */ .highlight .kp { color: #FFAD66 } /* Keyword.Pseudo */ .highlight .kr { color: #FFAD66 } /* Keyword.Reserved */ .highlight .kt { color: #73D0FF } /* Keyword.Type */ .highlight .m { color: #DFBFFF } /* Literal.Number */ .highlight .s { color: #D5FF80 } /* Literal.String */ .highlight .na { color: #FFD173 } /* Name.Attribute */ .highlight .nb { color: #F28779 } /* Name.Builtin */ .highlight .nc { color: #5CCFE6 } /* Name.Class */ .highlight .no { color: #DFBFFF } /* Name.Constant */ .highlight .nd { color: #FFDFB3 } /* Name.Decorator */ .highlight .nf { color: #FFD173 } /* Name.Function */ .highlight .nt { color: #5CCFE6 } /* Name.Tag */ .highlight .ow { color: #F29E74 } /* Operator.Word */ .highlight .w { color: #CCCAC2 } /* Text.Whitespace */ .highlight .mb { color: #DFBFFF } /* Literal.Number.Bin */ .highlight .mf { color: #DFBFFF } /* Literal.Number.Float */ .highlight .mh { color: #DFBFFF } /* Literal.Number.Hex */ .highlight .mi { color: #DFBFFF } /* Literal.Number.Integer */ .highlight .mo { color: #DFBFFF } /* Literal.Number.Oct */ .highlight .sa { color: #D5FF80 } /* Literal.String.Affix */ .highlight .sb { color: #F29E74 } /* Literal.String.Backtick */ .highlight .sc { color: #D5FF80 } /* Literal.String.Char */ .highlight .dl { color: #D5FF80 } /* Literal.String.Delimiter */ .highlight .sd { color: #95E6CB; font-style: italic } /* Literal.String.Doc */ .highlight .s2 { color: #D5FF80 } /* Literal.String.Double */ .highlight .se { color: #D5FF80 } /* Literal.String.Escape */ .highlight .sh { color: #D5FF80 } /* Literal.String.Heredoc */ .highlight .si { color: #D5FF80 } /* Literal.String.Interpol */ .highlight .sx { color: #D5FF80 } /* Literal.String.Other */ .highlight .sr { color: #95E6CB } /* Literal.String.Regex */ .highlight .s1 { color: #D5FF80 } /* Literal.String.Single */ .highlight .ss { color: #D5FF80 } /* Literal.String.Symbol */ .highlight .bp { color: #F28779 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #FFD173 } /* Name.Function.Magic */ .highlight .vi { color: #FFCC66 } /* Name.Variable.Instance */ .highlight .vm { color: #5CCFE6; font-style: italic } /* Name.Variable.Magic */ .highlight .il { color: #DFBFFF } /* Literal.Number.Integer.Long */

Contributing

Contributors are very welcome! No contribution is too small and all contributions are valued.

Some suggestions to get started:

We provide an architecture.md that should give you a good overview of the internals.

Auto generated documentation

Some parts of the book are autogenerated from the code itself, like the list of :commands and supported languages. To generate these files, run

cargo xtask docgen

inside the project. We use xtask as an ad-hoc task runner.

To preview the book itself, install mdbook. Then, run

mdbook serve book

and visit http://localhost:3000.

Testing

Unit tests/Documentation tests

Run cargo test --workspace to run unit tests and documentation tests in all packages.

Integration tests

Integration tests for helix-term can be run with cargo integration-test. Code contributors are strongly encouraged to write integration tests for their code. Existing tests can be used as examples. Helpers can be found in helpers.rs. The log level can be set with the HELIX_LOG_LEVEL environment variable, e.g. HELIX_LOG_LEVEL=debug cargo integration-test.

Minimum Stable Rust Version (MSRV) Policy

Helix follows the MSRV of Firefox. The current MSRV and future changes to the MSRV are listed in the Firefox documentation.