refactor: better handling of hint_style_arg

src/config/basic.rs

@@ -58,12 +58,12 @@ pub struct Config {
     ///
     /// Underline or surround the hint for increased visibility.
     /// If not provided, only the hint colors will be used.
-    #[clap(short = 's', long, arg_enum, rename_all = "lowercase")]
-    pub hint_style: Option<HintStyleArg>,
+    #[clap(short = 's', long = "hint-style", arg_enum, rename_all = "lowercase")]
+    pub hint_style_arg: Option<HintStyleArg>,
 
     /// Chars surrounding each hint, used with `Surround` style.
     #[clap(long, default_value = "{}",
-                parse(try_from_str = parse_chars))]
+                parse(try_from_str = try_parse_chars))]
     pub hint_surroundings: (char, char),
 }
 
@@ -78,7 +78,7 @@ pub enum HintStyleArg {
 }
 
 /// Try to parse a `&str` into a tuple of `char`s.
-fn parse_chars(src: &str) -> Result<(char, char)> {
+fn try_parse_chars(src: &str) -> Result<(char, char)> {
     if src.chars().count() != 2 {
         return Err(Error::ExpectedSurroundingPair);
     }
@@ -86,3 +86,20 @@ fn parse_chars(src: &str) -> Result<(char, char)> {
     let chars: Vec<char> = src.chars().collect();
     Ok((chars[0], chars[1]))
 }
+
+impl Config {
+    pub fn hint_style(&self) -> Option<ui::HintStyle> {
+        match &self.hint_style_arg {
+            None => None,
+            Some(style) => match style {
+                HintStyleArg::Bold => Some(ui::HintStyle::Bold),
+                HintStyleArg::Italic => Some(ui::HintStyle::Italic),
+                HintStyleArg::Underline => Some(ui::HintStyle::Underline),
+                HintStyleArg::Surround => {
+                    let (open, close) = self.hint_surroundings;
+                    Some(ui::HintStyle::Surround(open, close))
+                }
+            },
+        }
+    }
+}

src/config/extended.rs

@@ -96,7 +96,7 @@ impl ConfigExt {
                     }
                     "@copyrat-hint-style" => {
                         let case_insensitive = true;
-                        inner.hint_style = Some(
+                        inner.hint_style_arg = Some(
                             basic::HintStyleArg::from_str(value, case_insensitive)
                                 .map_err(Error::ExpectedEnumVariant)?,
                         )

src/lib.rs

@@ -27,19 +27,6 @@ pub fn run(lines: &[&str], opt: &config::basic::Config) -> Option<ui::Selection>
         return None;
     }
 
-    let hint_style = match &opt.hint_style {
-        None => None,
-        Some(style) => match style {
-            config::basic::HintStyleArg::Bold => Some(ui::HintStyle::Bold),
-            config::basic::HintStyleArg::Italic => Some(ui::HintStyle::Italic),
-            config::basic::HintStyleArg::Underline => Some(ui::HintStyle::Underline),
-            config::basic::HintStyleArg::Surround => {
-                let (open, close) = opt.hint_surroundings;
-                Some(ui::HintStyle::Surround(open, close))
-            }
-        },
-    };
-
     let default_output_destination = config::extended::OutputDestination::Tmux;
 
     let selection: Option<ui::Selection> = {
@@ -49,7 +36,7 @@ pub fn run(lines: &[&str], opt: &config::basic::Config) -> Option<ui::Selection>
             default_output_destination,
             &opt.colors,
             &opt.hint_alignment,
-            hint_style,
+            opt.hint_style(),
         );
 
         ui.present()