docs: escape pipe in typeable command name (#13869)

book/src/generated/typable-cmd.md

@@ -78,7 +78,7 @@
 | `:log-open` | Open the helix log file. |
 | `:insert-output` | Run shell command, inserting output before each selection. |
 | `:append-output` | Run shell command, appending output after each selection. |
-| `:pipe`, `:|` | Pipe each selection to the shell command. |
+| `:pipe`, `:\|` | Pipe each selection to the shell command. |
 | `:pipe-to` | Pipe each selection to the shell command, ignoring output. |
 | `:run-shell-command`, `:sh`, `:!` | Run a shell command |
 | `:reset-diff-change`, `:diffget`, `:diffg` | Reset the diff change at the cursor position. |

xtask/src/docgen.rs

@@ -36,7 +36,8 @@ pub fn typable_commands() -> Result<String, DynError> {
         "Description".to_owned(),
     ]));
 
-    let cmdify = |s: &str| format!("`:{}`", s);
+    // escape | so it doesn't get rendered as a column separator
+    let cmdify = |s: &str| format!("`:{}`", s.replace('|', "\\|"));
 
     for cmd in TYPABLE_COMMAND_LIST {
         let names = std::iter::once(&cmd.name)