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< as unindent
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@ -543,7 +543,7 @@ pub fn paste(view: &mut View, _count: usize) {
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const TAB_WIDTH: usize = 4;
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pub fn indent(view: &mut View, _count: usize) {
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fn get_lines(view: &View) -> Vec<usize> {
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let mut lines = Vec::new();
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// Get all line numbers
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@ -557,6 +557,11 @@ pub fn indent(view: &mut View, _count: usize) {
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}
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lines.sort_unstable(); // sorting by usize so _unstable is preferred
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lines.dedup();
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lines
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}
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pub fn indent(view: &mut View, _count: usize) {
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let lines = get_lines(view);
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// Indent by one level
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let indent = Tendril::from(" ".repeat(TAB_WIDTH));
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@ -573,5 +578,33 @@ pub fn indent(view: &mut View, _count: usize) {
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}
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pub fn unindent(view: &mut View, _count: usize) {
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unimplemented!()
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let lines = get_lines(view);
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let mut changes = Vec::with_capacity(lines.len());
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for line_idx in lines {
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let line = view.state.doc.line(line_idx);
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let mut width = 0;
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for ch in line.chars() {
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match ch {
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' ' => width += 1,
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'\t' => width = (width / TAB_WIDTH + 1) * TAB_WIDTH,
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_ => break,
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}
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if width >= TAB_WIDTH {
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break;
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}
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}
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if width > 0 {
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let start = view.state.doc.line_to_char(line_idx);
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changes.push((start, start + width, None))
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}
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}
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let transaction = Transaction::change(&view.state, changes.into_iter());
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transaction.apply(&mut view.state);
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append_changes_to_history(view);
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}
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