helix/helix-core/src/lib.rs

#![allow(unused)]
pub mod auto_pairs;
pub mod comment;
pub mod diagnostic;
pub mod graphemes;
mod history;
pub mod indent;
pub mod macros;
pub mod match_brackets;
pub mod movement;
pub mod object;
mod position;
pub mod register;
pub mod search;
pub mod selection;
mod state;
pub mod syntax;
mod transaction;

pub(crate) fn find_first_non_whitespace_char2(line: RopeSlice) -> Option<usize> {
    // find first non-whitespace char
    for (start, ch) in line.chars().enumerate() {
        // TODO: could use memchr with chunks?
        if ch != ' ' && ch != '\t' && ch != '\n' {
            return Some(start);
        }
    }

    None
}
pub(crate) fn find_first_non_whitespace_char(text: RopeSlice, line_num: usize) -> Option<usize> {
    let line = text.line(line_num);
    let mut start = text.line_to_char(line_num);

    // find first non-whitespace char
    for ch in line.chars() {
        // TODO: could use memchr with chunks?
        if ch != ' ' && ch != '\t' && ch != '\n' {
            return Some(start);
        }
        start += 1;
    }

    None
}

pub fn runtime_dir() -> std::path::PathBuf {
    // runtime env var || dir where binary is located
    std::env::var("HELIX_RUNTIME")
        .map(|path| path.into())
        .unwrap_or_else(|_| {
            std::env::current_exe()
                .ok()
                .and_then(|path| path.parent().map(|path| path.to_path_buf()))
                .unwrap()
        })
}

pub fn config_dir() -> std::path::PathBuf {
    // TODO: allow env var override
    let strategy = choose_base_strategy().expect("Unable to find the config directory!");
    let mut path = strategy.config_dir();
    path.push("helix");
    path
}

pub fn cache_dir() -> std::path::PathBuf {
    // TODO: allow env var override
    let strategy = choose_base_strategy().expect("Unable to find the config directory!");
    let mut path = strategy.cache_dir();
    path.push("helix");
    path
}

use etcetera::base_strategy::{choose_base_strategy, BaseStrategy};

pub use ropey::{Rope, RopeSlice};

pub use tendril::StrTendril as Tendril;

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

pub use position::{coords_at_pos, pos_at_coords, Position};
pub use selection::{Range, Selection};
pub use smallvec::SmallVec;
pub use syntax::Syntax;

pub use diagnostic::Diagnostic;
pub use history::History;
pub use state::State;

pub use transaction::{Assoc, Change, ChangeSet, Operation, Transaction};