rebase on branch line_ending_detection

pull/224/head
Jan Hrastnik 3 years ago
parent a364d6c383
commit 3756c21bae

@ -104,6 +104,7 @@ 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 graphemes::RopeGraphemes;
pub use diagnostic::Diagnostic;
pub use state::State;

@ -179,7 +179,7 @@ impl EditorView {
// iterate over range char by char
for grapheme in RopeGraphemes::new(text) {
if grapheme == "\n" {
if grapheme == "\n" || grapheme == "\r\n" {
visual_x = 0;
line += 1;

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

@ -1,4 +1,4 @@
use crate::{theme::Theme, tree::Tree, Document, DocumentId, RegisterSelection, View, ViewId};
use crate::{theme::Theme, tree::Tree, Document, DocumentId, RegisterSelection, View, ViewId, LineEnding};
use tui::layout::Rect;
use tui::terminal::CursorKind;
@ -148,7 +148,7 @@ impl Editor {
pub fn new_file(&mut self, action: Action) -> DocumentId {
use helix_core::Rope;
let doc = Document::new(Rope::from("\n"));
let doc = Document::new(Rope::from("\n"), LineEnding::LF);
let id = self.documents.insert(doc);
self.documents[id].id = id;
self.switch(id, action);

@ -10,6 +10,7 @@ new_key_type! { pub struct DocumentId; }
new_key_type! { pub struct ViewId; }
pub use document::Document;
pub use document::LineEnding;
pub use editor::Editor;
pub use register_selection::RegisterSelection;
pub use theme::Theme;

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