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-rw-r--r--helix-core/src/indent.rs39
1 files changed, 32 insertions, 7 deletions
diff --git a/helix-core/src/indent.rs b/helix-core/src/indent.rs
index 3aa59fa3..950a7f65 100644
--- a/helix-core/src/indent.rs
+++ b/helix-core/src/indent.rs
@@ -56,6 +56,14 @@ impl IndentStyle {
}
}
}
+
+ #[inline]
+ pub fn indent_width(&self, tab_width: usize) -> usize {
+ match *self {
+ IndentStyle::Tabs => tab_width,
+ IndentStyle::Spaces(width) => width as usize,
+ }
+ }
}
/// Attempts to detect the indentation style used in a document.
@@ -177,7 +185,7 @@ pub fn auto_detect_indent_style(document_text: &Rope) -> Option<IndentStyle> {
/// To determine indentation of a newly inserted line, figure out the indentation at the last col
/// of the previous line.
-pub fn indent_level_for_line(line: RopeSlice, tab_width: usize) -> usize {
+pub fn indent_level_for_line(line: RopeSlice, tab_width: usize, indent_width: usize) -> usize {
let mut len = 0;
for ch in line.chars() {
match ch {
@@ -187,7 +195,7 @@ pub fn indent_level_for_line(line: RopeSlice, tab_width: usize) -> usize {
}
}
- len / tab_width
+ len / indent_width
}
/// Computes for node and all ancestors whether they are the first node on their line.
@@ -466,6 +474,7 @@ fn extend_nodes<'a>(
text: RopeSlice,
line: usize,
tab_width: usize,
+ indent_width: usize,
) {
let mut stop_extend = false;
@@ -490,10 +499,12 @@ fn extend_nodes<'a>(
if deepest_preceding.end_position().row == line {
extend_node = true;
} else {
- let cursor_indent = indent_level_for_line(text.line(line), tab_width);
+ let cursor_indent =
+ indent_level_for_line(text.line(line), tab_width, indent_width);
let node_indent = indent_level_for_line(
text.line(deepest_preceding.start_position().row),
tab_width,
+ indent_width,
);
if cursor_indent > node_indent {
extend_node = true;
@@ -562,6 +573,7 @@ pub fn treesitter_indent_for_pos(
syntax: &Syntax,
indent_style: &IndentStyle,
tab_width: usize,
+ indent_width: usize,
text: RopeSlice,
line: usize,
pos: usize,
@@ -622,6 +634,7 @@ pub fn treesitter_indent_for_pos(
text,
line,
tab_width,
+ indent_width,
);
}
let mut first_in_line = get_first_in_line(node, new_line.then_some(byte_pos));
@@ -709,6 +722,7 @@ pub fn indent_for_newline(
line_before_end_pos: usize,
current_line: usize,
) -> String {
+ let indent_width = indent_style.indent_width(tab_width);
if let (Some(query), Some(syntax)) = (
language_config.and_then(|config| config.indent_query()),
syntax,
@@ -718,6 +732,7 @@ pub fn indent_for_newline(
syntax,
indent_style,
tab_width,
+ indent_width,
text,
line_before,
line_before_end_pos,
@@ -726,7 +741,7 @@ pub fn indent_for_newline(
return indent;
};
}
- let indent_level = indent_level_for_line(text.line(current_line), tab_width);
+ let indent_level = indent_level_for_line(text.line(current_line), tab_width, indent_width);
indent_style.as_str().repeat(indent_level)
}
@@ -763,12 +778,22 @@ mod test {
#[test]
fn test_indent_level() {
let tab_width = 4;
+ let indent_width = 4;
let line = Rope::from(" fn new"); // 8 spaces
- assert_eq!(indent_level_for_line(line.slice(..), tab_width), 2);
+ assert_eq!(
+ indent_level_for_line(line.slice(..), tab_width, indent_width),
+ 2
+ );
let line = Rope::from("\t\t\tfn new"); // 3 tabs
- assert_eq!(indent_level_for_line(line.slice(..), tab_width), 3);
+ assert_eq!(
+ indent_level_for_line(line.slice(..), tab_width, indent_width),
+ 3
+ );
// mixed indentation
let line = Rope::from("\t \tfn new"); // 1 tab, 4 spaces, tab
- assert_eq!(indent_level_for_line(line.slice(..), tab_width), 3);
+ assert_eq!(
+ indent_level_for_line(line.slice(..), tab_width, indent_width),
+ 3
+ );
}
}