Add COMPLETION_SUBCOMMAND and is_completing method

1 files changed, 11 insertions, 0 deletions

diff --git a/mingling_core/src/comp.rs b/mingling_core/src/comp.rs
index 1769a5c..bf7ab13 100644
--- a/mingling_core/src/comp.rs
+++ b/mingling_core/src/comp.rs
@@ -1,3 +1,4 @@
+mod comp_ctx;
 mod flags;
 mod shell_ctx;
 mod suggest;
@@ -5,6 +6,16 @@ mod suggest;
 use std::collections::BTreeSet;
 use std::fmt::Display;
 
+/// Constant defining the name of the completion subcommand.
+///
+/// When a user invokes this subcommand (e.g., `your_program __comp`), the
+/// program enters completion mode and generates shell completions based on
+/// the current shell context.
+///
+/// This value is used internally by the completion system to intercept the
+/// command-line input and redirect to the completion handler.
+pub const COMPLETION_SUBCOMMAND: &str = "__comp";
+
 #[doc(hidden)]
 pub use flags::*;
 #[doc(hidden)]