From aa251efb87b561f62266628f06ad341253fbbdc5 Mon Sep 17 00:00:00 2001
From: 魏曹先生 <1992414357@qq.com>
Date: Mon, 17 Aug 2026 04:05:41 +0800
Subject: refactor!: remove legacy parser feature and migrate to picker

The legacy `parser` feature and its module tree (`mingling::parser`,
`Argument`, `Picker`, `Pickable`, etc.) have been fully removed and
replaced by the `picker` feature powered by `arg-picker`.

BREAKING CHANGE: Remove `parser` feature and use `picker` instead.
Migration guide: Replace `features = ["parser"]` with
`features = ["picker"]` and update API usage per the provided table.
---
 examples/example-completion/Cargo.lock  | 25 ++++++++++++++++++-------
 examples/example-completion/Cargo.toml  |  2 +-
 examples/example-completion/src/main.rs | 20 ++++++++++++--------
 3 files changed, 31 insertions(+), 16 deletions(-)

(limited to 'examples/example-completion')

diff --git a/examples/example-completion/Cargo.lock b/examples/example-completion/Cargo.lock
index 97401e7..d4b2f33 100644
--- a/examples/example-completion/Cargo.lock
+++ b/examples/example-completion/Cargo.lock
@@ -2,6 +2,23 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "arg-picker"
+version = "0.2.0"
+dependencies = [
+ "arg-picker-macros",
+ "just_fmt 0.2.0",
+]
+
+[[package]]
+name = "arg-picker-macros"
+version = "0.2.0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.118",
+]
+
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -86,9 +103,9 @@ dependencies = [
 name = "mingling"
 version = "0.5.0"
 dependencies = [
+ "arg-picker",
  "mingling_core",
  "mingling_macros",
- "size",
 ]
 
 [[package]]
@@ -166,12 +183,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "size"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b6709c7b6754dca1311b3c73e79fcce40dd414c782c66d88e8823030093b02b"
-
 [[package]]
 name = "syn"
 version = "2.0.118"
diff --git a/examples/example-completion/Cargo.toml b/examples/example-completion/Cargo.toml
index 00c7f8c..9884f4e 100644
--- a/examples/example-completion/Cargo.toml
+++ b/examples/example-completion/Cargo.toml
@@ -9,7 +9,7 @@ path = "../../mingling"
 features = [
     # Enable `comp` features
     "comp",
-    "parser",
+    "picker",
 ]
 
 [build-dependencies.mingling]
diff --git a/examples/example-completion/src/main.rs b/examples/example-completion/src/main.rs
index 7de41f6..d363697 100644
--- a/examples/example-completion/src/main.rs
+++ b/examples/example-completion/src/main.rs
@@ -74,18 +74,22 @@ fn complete_greet_entry(ctx: &ShellContext) -> Suggest {
     }
 
     // When the user is typing `--repeat`
-    if ctx.filling_argument(["-r", "--repeat"]) {
+    if ctx.previous_word == "-r" || ctx.previous_word == "--repeat" {
         return suggest! {}; // Don't suggest anything
     }
 
     // When the user is typing `-`
-    if ctx.typing_argument() {
-        return suggest! {
+    if ctx.current_word.starts_with('-') {
+        // Remove arguments that have already been typed by the user
+        let typed: Vec<&str> = ctx.all_words.iter().map(String::as_str).collect();
+        let mut set = suggest! {
             "-r": "Number of repetitions",
             "--repeat": "Number of repetitions",
+        };
+        if let Suggest::Suggest(items) = &mut set {
+            items.retain(|item| !typed.contains(&item.suggest().as_str()));
         }
-        // Remove arguments that have already been typed by the user
-        .strip_typed_argument(ctx);
+        return set;
     }
 
     // Otherwise, suggest nothing
@@ -102,9 +106,9 @@ pack!(ResultName = (u8, String));
 #[chain]
 fn handle_greet(args: EntryGreet) -> Next {
     let result: ResultName = args
-        .pick_or(["-r", "--repeat"], 1)
-        .pick_or((), "World")
-        .unpack()
+        .pick_or(&arg![repeat: u8, 'r'], || 1)
+        .pick_or(&arg![String], || "World".to_string())
+        .unwrap()
         .into();
     result.into()
 }
-- 
cgit