Change test mark from ^@ to #[|]#

3 files changed, 185 insertions, 97 deletions

diff --git a/helix-core/src/movement.rs b/helix-core/src/movement.rs
index 970aff88..c09b3c33 100644
--- a/helix-core/src/movement.rs
+++ b/helix-core/src/movement.rs
@@ -1255,15 +1255,24 @@ mod test {
     #[test]
     fn test_behaviour_when_moving_to_prev_paragraph_single() {
         let tests = [
-            ("^@", "^@"),
-            ("^s@tart at\nfirst char\n", "@s^tart at\nfirst char\n"),
-            ("start at\nlast char^\n@", "@start at\nlast char\n^"),
-            ("goto\nfirst\n\n^p@aragraph", "@goto\nfirst\n\n^paragraph"),
-            ("goto\nfirst\n^\n@paragraph", "@goto\nfirst\n\n^paragraph"),
-            ("goto\nsecond\n\np^a@ragraph", "goto\nsecond\n\n@pa^ragraph"),
+            ("#[|]#", "#[|]#"),
+            ("#[s|]#tart at\nfirst char\n", "#[|s]#tart at\nfirst char\n"),
+            ("start at\nlast char#[\n|]#", "#[|start at\nlast char\n]#"),
             (
-                "here\n\nhave\nmultiple\nparagraph\n\n\n\n\n^@",
-                "here\n\n@have\nmultiple\nparagraph\n\n\n\n\n^",
+                "goto\nfirst\n\n#[p|]#aragraph",
+                "#[|goto\nfirst\n\n]#paragraph",
+            ),
+            (
+                "goto\nfirst\n#[\n|]#paragraph",
+                "#[|goto\nfirst\n\n]#paragraph",
+            ),
+            (
+                "goto\nsecond\n\np#[a|]#ragraph",
+                "goto\nsecond\n\n#[|pa]#ragraph",
+            ),
+            (
+                "here\n\nhave\nmultiple\nparagraph\n\n\n\n\n#[|]#",
+                "here\n\n#[|have\nmultiple\nparagraph\n\n\n\n\n]#",
             ),
         ];
 
@@ -1280,8 +1289,14 @@ mod test {
     #[test]
     fn test_behaviour_when_moving_to_prev_paragraph_double() {
         let tests = [
-            ("on^e@\n\ntwo\n\nthree\n\n", "@one^\n\ntwo\n\nthree\n\n"),
-            ("one\n\ntwo\n\nth^r@ee\n\n", "one\n\n@two\n\nthr^ee\n\n"),
+            (
+                "on#[e|]#\n\ntwo\n\nthree\n\n",
+                "#[|one]#\n\ntwo\n\nthree\n\n",
+            ),
+            (
+                "one\n\ntwo\n\nth#[r|]#ee\n\n",
+                "one\n\n#[|two\n\nthr]#ee\n\n",
+            ),
         ];
 
         for (before, expected) in tests {
@@ -1297,8 +1312,14 @@ mod test {
     #[test]
     fn test_behaviour_when_moving_to_prev_paragraph_extend() {
         let tests = [
-            ("one\n\n@two\n\n^three\n\n", "@one\n\ntwo\n\n^three\n\n"),
-            ("@one\n\ntwo\n\n^three\n\n", "@one\n\ntwo\n\n^three\n\n"),
+            (
+                "one\n\n#[|two\n\n]#three\n\n",
+                "#[|one\n\ntwo\n\n]#three\n\n",
+            ),
+            (
+                "#[|one\n\ntwo\n\n]#three\n\n",
+                "#[|one\n\ntwo\n\n]#three\n\n",
+            ),
         ];
 
         for (before, expected) in tests {
@@ -1314,24 +1335,24 @@ mod test {
     #[test]
     fn test_behaviour_when_moving_to_next_paragraph_single() {
         let tests = [
-            ("^@", "^@"),
-            ("^s@tart at\nfirst char\n", "^start at\nfirst char\n@"),
-            ("start at\nlast char^\n@", "start at\nlast char^\n@"),
+            ("#[|]#", "#[|]#"),
+            ("#[s|]#tart at\nfirst char\n", "#[start at\nfirst char\n|]#"),
+            ("start at\nlast char#[\n|]#", "start at\nlast char#[\n|]#"),
             (
-                "a\nb\n\n^g@oto\nthird\n\nparagraph",
-                "a\nb\n\n^goto\nthird\n\n@paragraph",
+                "a\nb\n\n#[g|]#oto\nthird\n\nparagraph",
+                "a\nb\n\n#[goto\nthird\n\n|]#paragraph",
             ),
             (
-                "a\nb\n^\n@goto\nthird\n\nparagraph",
-                "a\nb\n\n^goto\nthird\n\n@paragraph",
+                "a\nb\n#[\n|]#goto\nthird\n\nparagraph",
+                "a\nb\n\n#[goto\nthird\n\n|]#paragraph",
             ),
             (
-                "a\nb^\n@\ngoto\nsecond\n\nparagraph",
-                "a\nb^\n\n@goto\nsecond\n\nparagraph",
+                "a\nb#[\n|]#\ngoto\nsecond\n\nparagraph",
+                "a\nb#[\n\n|]#goto\nsecond\n\nparagraph",
             ),
             (
-                "here\n\nhave\n^m@ultiple\nparagraph\n\n\n\n\n",
-                "here\n\nhave\n^multiple\nparagraph\n\n\n\n\n@",
+                "here\n\nhave\n#[m|]#ultiple\nparagraph\n\n\n\n\n",
+                "here\n\nhave\n#[multiple\nparagraph\n\n\n\n\n|]#",
             ),
         ];
 
@@ -1348,8 +1369,14 @@ mod test {
     #[test]
     fn test_behaviour_when_moving_to_next_paragraph_double() {
         let tests = [
-            ("one\n\ntwo\n\nth^r@ee\n\n", "one\n\ntwo\n\nth^ree\n\n@"),
-            ("on^e@\n\ntwo\n\nthree\n\n", "on^e\n\ntwo\n\n@three\n\n"),
+            (
+                "one\n\ntwo\n\nth#[r|]#ee\n\n",
+                "one\n\ntwo\n\nth#[ree\n\n|]#",
+            ),
+            (
+                "on#[e|]#\n\ntwo\n\nthree\n\n",
+                "on#[e\n\ntwo\n\n|]#three\n\n",
+            ),
         ];
 
         for (before, expected) in tests {
@@ -1365,8 +1392,14 @@ mod test {
     #[test]
     fn test_behaviour_when_moving_to_next_paragraph_extend() {
         let tests = [
-            ("one\n\n^two\n\n@three\n\n", "one\n\n^two\n\nthree\n\n@"),
-            ("one\n\n^two\n\nthree\n\n@", "one\n\n^two\n\nthree\n\n@"),
+            (
+                "one\n\n#[two\n\n|]#three\n\n",
+                "one\n\n#[two\n\nthree\n\n|]#",
+            ),
+            (
+                "one\n\n#[two\n\nthree\n\n|]#",
+                "one\n\n#[two\n\nthree\n\n|]#",
+            ),
         ];
 
         for (before, expected) in tests {
diff --git a/helix-core/src/test.rs b/helix-core/src/test.rs
index da4f8fac..964a770a 100644
--- a/helix-core/src/test.rs
+++ b/helix-core/src/test.rs
@@ -5,8 +5,10 @@ use std::cmp::Reverse;
 
 /// Convert annotated test string to test string and selection.
 ///
-/// `^` for `anchor` and `|` for head (`@` for primary), both must appear
-/// or otherwise it will panic.
+/// `#[|` for primary selection with head before anchor followed by `]#`.
+/// `#(|` for secondary selection with head before anchor followed by `)#`.
+/// `#[` for primary selection with head after anchor followed by `|]#`.
+/// `#(` for secondary selection with head after anchor followed by `|)#`.
 ///
 /// # Examples
 ///
@@ -15,7 +17,7 @@ use std::cmp::Reverse;
 /// use smallvec::smallvec;
 ///
 /// assert_eq!(
-///     print("^a@b|c^"),
+///     print("#[a|]#b#(|c)#"),
 ///     ("abc".to_owned(), Selection::new(smallvec![Range::new(0, 1), Range::new(3, 2)], 0))
 /// );
 /// ```
@@ -26,56 +28,101 @@ use std::cmp::Reverse;
 /// Panics when missing head or anchor.
 /// Panics when head come after head or anchor come after anchor.
 pub fn print(s: &str) -> (String, Selection) {
-    let mut anchor = None;
-    let mut head = None;
     let mut primary = None;
     let mut ranges = SmallVec::new();
-    let mut i = 0;
-    let s = s
-        .chars()
-        .filter(|c| {
-            match c {
-                '^' if anchor != None => panic!("anchor without head {s:?}"),
-                '^' if head == None => anchor = Some(i),
-                '^' => ranges.push(Range::new(i, head.take().unwrap())),
-                '|' if head != None => panic!("head without anchor {s:?}"),
-                '|' if anchor == None => head = Some(i),
-                '|' => ranges.push(Range::new(anchor.take().unwrap(), i)),
-                '@' if primary != None => panic!("head (primary) already appeared {s:?}"),
-                '@' if head != None => panic!("head (primary) without anchor {s:?}"),
-                '@' if anchor == None => {
-                    primary = Some(ranges.len());
-                    head = Some(i);
+    let mut iter = s.chars().peekable();
+    let mut left = String::with_capacity(s.len());
+    'outer: while let Some(c) = iter.next() {
+        let start = left.len();
+        if c == '#' {
+            if iter.next_if_eq(&'[').is_some() {
+                if primary.is_some() {
+                    panic!("primary `#[` already appeared {left:?} {s:?}");
                 }
-                '@' => {
-                    primary = Some(ranges.len());
-                    ranges.push(Range::new(anchor.take().unwrap(), i));
+                if iter.next_if_eq(&'|').is_some() {
+                    while let Some(c) = iter.next() {
+                        if c == ']' && iter.next_if_eq(&'#').is_some() {
+                            primary = Some(ranges.len());
+                            ranges.push(Range::new(left.len(), start));
+                            continue 'outer;
+                        } else {
+                            left.push(c);
+                        }
+                    }
+                    panic!("missing primary end `]#` {left:?} {s:?}");
+                } else {
+                    while let Some(c) = iter.next() {
+                        if c == '|' {
+                            if let Some(cc) = iter.next_if_eq(&']') {
+                                if iter.next_if_eq(&'#').is_some() {
+                                    primary = Some(ranges.len());
+                                    ranges.push(Range::new(start, left.len()));
+                                    continue 'outer;
+                                } else {
+                                    left.push(c);
+                                    left.push(cc);
+                                }
+                            } else {
+                                left.push(c);
+                            }
+                        } else {
+                            left.push(c);
+                        }
+                    }
+                    panic!("missing primary end `|]#` {left:?} {s:?}");
                 }
-                _ => {
-                    i += 1;
-                    return true;
+            } else if iter.next_if_eq(&'(').is_some() {
+                if iter.next_if_eq(&'|').is_some() {
+                    while let Some(c) = iter.next() {
+                        if c == ')' && iter.next_if_eq(&'#').is_some() {
+                            ranges.push(Range::new(left.len(), start));
+                            continue 'outer;
+                        } else {
+                            left.push(c);
+                        }
+                    }
+                    panic!("missing end `)#` {left:?} {s:?}");
+                } else {
+                    while let Some(c) = iter.next() {
+                        if c == '|' {
+                            if let Some(cc) = iter.next_if_eq(&')') {
+                                if iter.next_if_eq(&'#').is_some() {
+                                    ranges.push(Range::new(start, left.len()));
+                                    continue 'outer;
+                                } else {
+                                    left.push(c);
+                                    left.push(cc);
+                                }
+                            } else {
+                                left.push(c);
+                            }
+                        } else {
+                            left.push(c);
+                        }
+                    }
+                    panic!("missing end `|)#` {left:?} {s:?}");
                 }
-            };
-            false
-        })
-        .collect();
-    if head.is_some() {
-        panic!("missing anchor (|) {s:?}");
-    }
-    if anchor.is_some() {
-        panic!("missing head (^) {s:?}");
+            } else {
+                left.push(c);
+            }
+        } else {
+            left.push(c);
+        }
     }
     let primary = match primary {
         Some(i) => i,
-        None => panic!("missing primary (@) {s:?}"),
+        None => panic!("missing primary `#[|]#` {s:?}"),
     };
     let selection = Selection::new(ranges, primary);
-    (s, selection)
+    (left, selection)
 }
 
 /// Convert test string and selection to annotated test string.
 ///
-/// `^` for `anchor` and `|` for head (`@` for primary).
+/// `#[|` for primary selection with head before anchor followed by `]#`.
+/// `#(|` for secondary selection with head before anchor followed by `)#`.
+/// `#[` for primary selection with head after anchor followed by `|]#`.
+/// `#(` for secondary selection with head after anchor followed by `|)#`.
 ///
 /// # Examples
 ///
@@ -85,28 +132,30 @@ pub fn print(s: &str) -> (String, Selection) {
 ///
 /// assert_eq!(
 ///     plain("abc", Selection::new(smallvec![Range::new(0, 1), Range::new(3, 2)], 0)),
-///     "^a@b|c^".to_owned()
+///     "#[a|]#b#(|c)#".to_owned()
 /// );
 /// ```
 pub fn plain(s: &str, selection: Selection) -> String {
     let primary = selection.primary_index();
-    let mut out = String::with_capacity(s.len() + 2 * selection.len());
+    let mut out = String::with_capacity(s.len() + 5 * selection.len());
     out.push_str(s);
     let mut insertion: Vec<_> = selection
         .iter()
         .enumerate()
         .flat_map(|(i, range)| {
-            [
-                // sort like this before reversed so anchor < head later
-                (range.head, if i == primary { '@' } else { '|' }),
-                (range.anchor, '^'),
-            ]
+            // sort like this before reversed so anchor < head later
+            match (range.anchor < range.head, i == primary) {
+                (true, true) => [(range.anchor, "#["), (range.head, "|]#")],
+                (true, false) => [(range.anchor, "#("), (range.head, "|)#")],
+                (false, true) => [(range.anchor, "]#"), (range.head, "#[|")],
+                (false, false) => [(range.anchor, ")#"), (range.head, "#(|")],
+            }
         })
         .collect();
     // insert in reverse order
     insertion.sort_unstable_by_key(|k| Reverse(k.0));
-    for (i, c) in insertion {
-        out.insert(i, c);
+    for (i, s) in insertion {
+        out.insert_str(i, s);
     }
     out
 }
diff --git a/helix-core/src/textobject.rs b/helix-core/src/textobject.rs
index fb6b7142..cc1e337c 100644
--- a/helix-core/src/textobject.rs
+++ b/helix-core/src/textobject.rs
@@ -357,18 +357,21 @@ mod test {
     #[test]
     fn test_textobject_paragraph_inside_single() {
         let tests = [
-            ("^@", "^@"),
-            ("firs^t@\n\nparagraph\n\n", "^first\n@\nparagraph\n\n"),
-            ("second\n\npa^r@agraph\n\n", "second\n\n^paragraph\n@\n"),
-            ("^f@irst char\n\n", "^first char\n@\n"),
-            ("last char\n^\n@", "last char\n\n^@"),
+            ("#[|]#", "#[|]#"),
+            ("firs#[t|]#\n\nparagraph\n\n", "#[first\n|]#\nparagraph\n\n"),
             (
-                "empty to line\n^\n@paragraph boundary\n\n",
-                "empty to line\n\n^paragraph boundary\n@\n",
+                "second\n\npa#[r|]#agraph\n\n",
+                "second\n\n#[paragraph\n|]#\n",
             ),
+            ("#[f|]#irst char\n\n", "#[first char\n|]#\n"),
+            ("last char\n#[\n|]#", "last char\n\n#[|]#"),
             (
-                "line to empty\n\n^p@aragraph boundary\n\n",
-                "line to empty\n\n^paragraph boundary\n@\n",
+                "empty to line\n#[\n|]#paragraph boundary\n\n",
+                "empty to line\n\n#[paragraph boundary\n|]#\n",
+            ),
+            (
+                "line to empty\n\n#[p|]#aragraph boundary\n\n",
+                "line to empty\n\n#[paragraph boundary\n|]#\n",
             ),
         ];
 
@@ -386,12 +389,12 @@ mod test {
     fn test_textobject_paragraph_inside_double() {
         let tests = [
             (
-                "last two\n\n^p@aragraph\n\nwithout whitespaces\n\n",
-                "last two\n\n^paragraph\n\nwithout whitespaces\n@\n",
+                "last two\n\n#[p|]#aragraph\n\nwithout whitespaces\n\n",
+                "last two\n\n#[paragraph\n\nwithout whitespaces\n|]#\n",
             ),
             (
-                "last two\n^\n@paragraph\n\nwithout whitespaces\n\n",
-                "last two\n\n^paragraph\n\nwithout whitespaces\n@\n",
+                "last two\n#[\n|]#paragraph\n\nwithout whitespaces\n\n",
+                "last two\n\n#[paragraph\n\nwithout whitespaces\n|]#\n",
             ),
         ];
 
@@ -408,18 +411,21 @@ mod test {
     #[test]
     fn test_textobject_paragraph_around_single() {
         let tests = [
-            ("^@", "^@"),
-            ("firs^t@\n\nparagraph\n\n", "^first\n\n@paragraph\n\n"),
-            ("second\n\npa^r@agraph\n\n", "second\n\n^paragraph\n\n@"),
-            ("^f@irst char\n\n", "^first char\n\n@"),
-            ("last char\n^\n@", "last char\n\n^@"),
+            ("#[|]#", "#[|]#"),
+            ("firs#[t|]#\n\nparagraph\n\n", "#[first\n\n|]#paragraph\n\n"),
+            (
+                "second\n\npa#[r|]#agraph\n\n",
+                "second\n\n#[paragraph\n\n|]#",
+            ),
+            ("#[f|]#irst char\n\n", "#[first char\n\n|]#"),
+            ("last char\n#[\n|]#", "last char\n\n#[|]#"),
             (
-                "empty to line\n^\n@paragraph boundary\n\n",
-                "empty to line\n\n^paragraph boundary\n\n@",
+                "empty to line\n#[\n|]#paragraph boundary\n\n",
+                "empty to line\n\n#[paragraph boundary\n\n|]#",
             ),
             (
-                "line to empty\n\n^p@aragraph boundary\n\n",
-                "line to empty\n\n^paragraph boundary\n\n@",
+                "line to empty\n\n#[p|]#aragraph boundary\n\n",
+                "line to empty\n\n#[paragraph boundary\n\n|]#",
             ),
         ];