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@ -8,7 +8,7 @@ use helix_core::{
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chars::{char_is_linebreak, char_is_whitespace},
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history::History,
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syntax::{LanguageConfiguration, LOADER},
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ChangeSet, Diagnostic, Rope, Selection, State, Syntax, Transaction,
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ChangeSet, Diagnostic, History, Rope, RopeSlice, RopeGraphemes, Selection, State, Syntax, Transaction,
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};
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use crate::{DocumentId, ViewId};
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@ -22,12 +22,28 @@ pub enum Mode {
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Insert,
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}
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#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
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pub enum IndentStyle {
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Tabs,
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Spaces(u8),
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}
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/// Represents one of the valid Unicode line endings.
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/// Also acts as an index into `LINE_ENDINGS`.
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#[derive(PartialEq, Copy, Clone, Debug)]
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pub enum LineEnding {
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None = 0, // No line ending
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CRLF = 1, // CarriageReturn followed by LineFeed
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LF = 2, // U+000A -- LineFeed
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VT = 3, // U+000B -- VerticalTab
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FF = 4, // U+000C -- FormFeed
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CR = 5, // U+000D -- CarriageReturn
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NEL = 6, // U+0085 -- NextLine
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LS = 7, // U+2028 -- Line Separator
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PS = 8, // U+2029 -- ParagraphSeparator
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}
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pub struct Document {
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// rope + selection
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pub(crate) id: DocumentId,
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@ -61,6 +77,7 @@ pub struct Document {
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diagnostics: Vec<Diagnostic>,
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language_server: Option<Arc<helix_lsp::Client>>,
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line_ending: LineEnding
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}
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use std::fmt;
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@ -146,11 +163,61 @@ pub fn canonicalize_path(path: &Path) -> std::io::Result<PathBuf> {
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std::env::current_dir().map(|current_dir| normalize_path(¤t_dir.join(path)))
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}
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pub fn auto_detect_line_ending(doc: &Rope) -> LineEnding {
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// based on https://github.com/cessen/led/blob/27572c8838a1c664ee378a19358604063881cc1d/src/editor/mod.rs#L88-L162
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let mut ending = LineEnding::None;
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for line in doc.lines().take(1) { // check first line only - unsure how sound this is
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// Get the line ending
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ending = if line.len_chars() == 1 {
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let g = RopeGraphemes::new(line.slice((line.len_chars() - 1)..))
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.last()
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.unwrap();
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rope_slice_to_line_ending(&g)
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} else if line.len_chars() > 1 {
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let g = RopeGraphemes::new(line.slice((line.len_chars() - 2)..))
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.last()
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.unwrap();
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rope_slice_to_line_ending(&g)
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} else {
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LineEnding::None
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};
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}
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ending
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}
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pub fn rope_slice_to_line_ending(g: &RopeSlice) -> LineEnding {
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if let Some(text) = g.as_str() {
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str_to_line_ending(text)
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} else if g == "\u{000D}\u{000A}" {
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LineEnding::CRLF
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} else {
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// Not a line ending
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LineEnding::None
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}
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}
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pub fn str_to_line_ending(g: &str) -> LineEnding {
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match g {
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"\u{000D}\u{000A}" => LineEnding::CRLF,
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"\u{000A}" => LineEnding::LF,
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"\u{000B}" => LineEnding::VT,
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"\u{000C}" => LineEnding::FF,
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"\u{000D}" => LineEnding::CR,
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"\u{0085}" => LineEnding::NEL,
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"\u{2028}" => LineEnding::LS,
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"\u{2029}" => LineEnding::PS,
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// Not a line ending
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_ => LineEnding::None,
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}
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}
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use helix_lsp::lsp;
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use url::Url;
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impl Document {
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pub fn new(text: Rope) -> Self {
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pub fn new(text: Rope, line_ending: LineEnding) -> Self {
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let changes = ChangeSet::new(&text);
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let old_state = None;
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@ -171,6 +238,7 @@ impl Document {
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history: Cell::new(History::default()),
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last_saved_revision: 0,
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language_server: None,
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line_ending: line_ending
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}
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}
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@ -190,7 +258,10 @@ impl Document {
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doc
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};
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let mut doc = Self::new(doc);
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// search for line endings
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let line_ending = auto_detect_line_ending(&doc);
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let mut doc = Self::new(doc, line_ending);
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// set the path and try detecting the language
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doc.set_path(&path)?;
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doc.detect_indent_style();
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