Add --list-languages argument to clap.

2018-05-07 08:36:02 -07:00 · 2018-05-07 08:36:02 -07:00 · 67bed73e15
parent ef7c39b159
commit 67bed73e15
1 changed files with 6 additions and 0 deletions
--- a/src/main.rs
+++ b/src/main.rs
@ -453,6 +453,12 @@ fn run() -> Result<()> {
                .default_value("auto")
                .help("When to use the pager"),
        )
+        .arg(
+            Arg::with_name("list languages")
+                .long("list-languages")
+                .takes_value(false)
+                .help("Displays supported languages")
+        )
        .subcommand(
            SubCommand::with_name("cache")
                .about("Modify the syntax-definition and theme cache")