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pull/8675/merge^2
mattwparas 1 year ago
parent ecfce4cd06
commit 768b483e40
1 changed files with 0 additions and 206 deletions
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206
helix-core/src/indent.rs
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@ -836,203 +836,6 @@ pub fn treesitter_indent_for_pos(
Some(result.into_string(indent_style)) Some(result.into_string(indent_style))
} }
// TODO: Make this be customizable, similar to how it works for vim
static LISP_WORDS: Lazy<std::collections::HashSet<&'static str>> = Lazy::new(|| {
let words = &[
"define-syntax",
"let*",
"lambda",
"λ",
"case",
"=>",
"quote-splicing",
"unquote-splicing",
"set!",
"let",
"letrec",
"letrec-syntax",
"let-values",
"let*-values",
"do",
"else",
"cond",
"unquote",
"begin",
"let-syntax",
"and",
"quasiquote",
"letrec",
"delay",
"or",
"identifier-syntax",
"assert",
"library",
"export",
"import",
"rename",
"only",
"except",
"prefix",
"provide",
"require",
"define",
"cond",
"if",
"syntax-rules",
"when",
"unless",
];
words.iter().copied().collect()
});
/// TODO: Come up with some elegant enough FFI for this, so that Steel can expose an API for this.
/// Problem is - the issues with the `Any` type and using things with type id.
// #[allow(clippy::too_many_arguments)]
// pub fn custom_indent_for_newline(
// language_config: Option<&LanguageConfiguration>,
// text: RopeSlice,
// line_before: usize,
// line_before_end_pos: usize,
// ) -> Option<String> {
// if let Some(config) = language_config {
// // TODO: If possible, this would be very cool to be implemented in steel itself. If not,
// // a rust native method that is embedded in a dylib that this uses would also be helpful
// if config.language_id == "scheme" {
// log::info!("Implement better scheme indent mode!");
// let byte_pos = text.char_to_byte(line_before_end_pos);
// let text_up_to_cursor = text.byte_slice(0..byte_pos);
// let mut cursor = line_before;
// let mut depth = 0;
// loop {
// let line = text_up_to_cursor.line(cursor);
// // We want to ignore comments
// let l = std::borrow::Cow::from(line);
// if l.trim_start().starts_with(";") {
// if cursor == 0 {
// break;
// }
// cursor -= 1;
// continue;
// }
// for (index, char) in line.chars_at(line.len_chars()).reversed().enumerate() {
// // log::info!("Char: {}, Index: {}", char, index);
// match char {
// ')' | ']' | '}' => {
// depth += 1;
// }
// '(' | '[' | '{' => {
// if depth == 0 {
// log::info!(
// "Found unmatched paren on line, index: {}, {}",
// line,
// index
// );
// // Here, then walk FORWARD, parsing the identifiers until there is a thing to line up with, for example:
// // (define (foo-bar) RET) <-
// // ^probably indent to here
// let offset = line.len_chars() - index;
// log::info!("Offset: {}", offset);
// let mut char_iter_from_paren = line.chars_at(offset).enumerate();
// let end;
// // Walk until we've found whitespace, and then crunch the whitespace until the start of the next symbol
// // if there is _no_ symbol after that, we should just default to the default behavior
// while let Some((index, char)) = char_iter_from_paren.next() {
// if char.is_whitespace() {
// let mut last = index;
// // This is the end of our range
// end = index;
// // If we have multiple parens in a row, match to the start:
// // for instance, (cond [(equal? x 10) RET])
// // ^ We want to line up to this
// //
// // To do so, just create an indent that is the width of the offset.
// match line.get_char(offset) {
// Some('(' | '[' | '{') => {
// return Some(" ".repeat(offset));
// }
// _ => {}
// }
// if line
// .slice(offset..offset + end)
// .as_str()
// .map(|x| LISP_WORDS.contains(x))
// .unwrap_or_default()
// {
// return Some(" ".repeat(offset + 1));
// }
// for _ in char_iter_from_paren
// .take_while(|(_, x)| x.is_whitespace())
// {
// last += 1;
// }
// // If we have something like (list RET)
// // We want the result to look like:
// // (list
// // )
// //
// // So we special case the lack of an additional word after
// // the first symbol
// if line.len_chars() == last + offset + 1 {
// if let Some(c) = line.get_char(last + offset) {
// if c.is_whitespace() {
// return Some(" ".repeat(offset + 1));
// }
// }
// }
// log::info!("Last + offset + 1: {}", last + offset + 1);
// return Some(" ".repeat(last + offset + 1));
// }
// }
// log::info!("Found no symbol after the initial opening symbol");
// return Some(" ".repeat(offset + 1));
// }
// depth -= 1;
// }
// _ => {}
// }
// }
// if cursor == 0 {
// break;
// }
// cursor -= 1;
// }
// // TODO: Implement heuristic for large files so we don't necessarily traverse the entire file backwards to check the matched parens?
// return Some("".to_string());
// }
// }
// None
// }
/// Returns the indentation for a new line. /// Returns the indentation for a new line.
/// This is done either using treesitter, or if that's not available by copying the indentation from the current line /// This is done either using treesitter, or if that's not available by copying the indentation from the current line
#[allow(clippy::too_many_arguments)] #[allow(clippy::too_many_arguments)]
@ -1066,15 +869,6 @@ pub fn indent_for_newline(
}; };
} }
// TODO: @Matt - see if we can shell out to the steel plugin to identify indentation length
// Something naive for steel could work, use the parser and
// if let Some(indent_level) =
// custom_indent_for_newline(language_config, text, line_before, line_before_end_pos)
// {
// return indent_level;
// }
let indent_level = indent_level_for_line(text.line(current_line), tab_width, indent_width); let indent_level = indent_level_for_line(text.line(current_line), tab_width, indent_width);
indent_style.as_str().repeat(indent_level) indent_style.as_str().repeat(indent_level)
} }

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