Change parameter object keybind from `p` to `a` (#1708)

This is largely to avoid a collision with the soon
to be merged paragraph object which takes up the p key.

book/src/keymap.md

@@ -268,8 +268,8 @@ Mappings in the style of [vim-unimpaired](https://github.com/tpope/vim-unimpaire
 | `[f`     | Go to previous function (**TS**)             | `goto_prev_function`  |
 | `]c`     | Go to next class (**TS**)                    | `goto_next_class`     |
 | `[c`     | Go to previous class (**TS**)                | `goto_prev_class`     |
-| `]p`     | Go to next parameter (**TS**)                | `goto_next_parameter` |
+| `]a`     | Go to next argument/parameter (**TS**)       | `goto_next_parameter` |
-| `[p`     | Go to previous parameter (**TS**)            | `goto_prev_parameter` |
+| `[a`     | Go to previous argument/parameter (**TS**)   | `goto_prev_parameter` |
 | `]o`     | Go to next comment (**TS**)                  | `goto_next_comment`   |
 | `[o`     | Go to previous comment (**TS**)              | `goto_prev_comment`   |
 | `[space` | Add newline above                            | `add_newline_above`   |

book/src/usage.md

@@ -68,7 +68,7 @@ Currently supported: `word`, `surround`, `function`, `class`, `parameter`.
 | `(`, `[`, `'`, etc     | Specified surround pairs |
 | `f`                    | Function                 |
 | `c`                    | Class                    |
-| `p`                    | Parameter                |
+| `a`                    | Argument/parameter       |
 | `o`                    | Comment                  |
 
 > NOTE: `f`, `c`, etc need a tree-sitter grammar active for the current

helix-term/src/commands.rs

@@ -3965,7 +3965,7 @@ fn select_textobject(cx: &mut Context, objtype: textobject::TextObject) {
                         'W' => textobject::textobject_word(text, range, objtype, count, true),
                         'c' => textobject_treesitter("class", range),
                         'f' => textobject_treesitter("function", range),
-                        'p' => textobject_treesitter("parameter", range),
+                        'a' => textobject_treesitter("parameter", range),
                         'o' => textobject_treesitter("comment", range),
                         'm' => {
                             let ch = text.char(range.cursor(text));
@@ -3999,7 +3999,7 @@ fn select_textobject(cx: &mut Context, objtype: textobject::TextObject) {
             ("W", "WORD"),
             ("c", "Class (tree-sitter)"),
             ("f", "Function (tree-sitter)"),
-            ("p", "Parameter (tree-sitter)"),
+            ("a", "Argument/parameter (tree-sitter)"),
             ("o", "Comment (tree-sitter)"),
             ("m", "Matching delimiter under cursor"),
             (" ", "... or any character acting as a pair"),

helix-term/src/keymap.rs

@@ -607,7 +607,7 @@ impl Default for Keymaps {
                 "D" => goto_first_diag,
                 "f" => goto_prev_function,
                 "c" => goto_prev_class,
-                "p" => goto_prev_parameter,
+                "a" => goto_prev_parameter,
                 "o" => goto_prev_comment,
                 "space" => add_newline_above,
             },
@@ -616,7 +616,7 @@ impl Default for Keymaps {
                 "D" => goto_last_diag,
                 "f" => goto_next_function,
                 "c" => goto_next_class,
-                "p" => goto_next_parameter,
+                "a" => goto_next_parameter,
                 "o" => goto_next_comment,
                 "space" => add_newline_below,
             },