From 07a58afaff73f025bd4a027b78e9a8215716e8c8 Mon Sep 17 00:00:00 2001
From: Schrottkatze <git@schrottkatze.de>
Date: Fri, 21 Mar 2025 14:15:12 +0100
Subject: [PATCH] improve flip-bool

---
 modules/shell/helix.nix        |  2 +-
 programs/flip-bool/src/main.rs | 27 ++++++++++++---------------
 2 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/modules/shell/helix.nix b/modules/shell/helix.nix
index d24aa16..adfda34 100644
--- a/modules/shell/helix.nix
+++ b/modules/shell/helix.nix
@@ -102,7 +102,7 @@
               d = "@<C-w>vgd";
               f = "@<C-w>vgy";
               h = ":toggle-option lsp.display-inlay-hints";
-              t = "@|flip-bool<ret>";
+              t = ":pipe flip-bool";
             };
           };
           insert = {
diff --git a/programs/flip-bool/src/main.rs b/programs/flip-bool/src/main.rs
index 299685f..0b99ab8 100644
--- a/programs/flip-bool/src/main.rs
+++ b/programs/flip-bool/src/main.rs
@@ -4,7 +4,6 @@
 #![feature(pattern)]
 
 use std::{
-    hint::black_box,
     io::{Read, Write},
     str::pattern::Pattern,
 };
@@ -86,29 +85,27 @@ fn find_bools(input: &str) -> [[Vec<usize>; 2]; BOOL_COUNT] {
             input
                 .match_indices(it)
                 .filter_map(|it| {
-                    let char_guard = |c: char| !(c.is_alphanumeric() || c.is_contained_in("-_"));
-                    let mut allow = true;
+                    fn char_guard(c: char) -> bool {
+                        !(c.is_alphanumeric() || c.is_contained_in("-_"))
+                    }
 
-                    if it.0 > 0 {
-                        allow &= char_guard(
+                    let last_idx = it.0 + it.1.len();
+
+                    (it.0 > 0
+                        && last_idx < input.len()
+                        && char_guard(
                             input[it.1.floor_char_boundary(it.0 - 1)..it.0]
                                 .chars()
                                 .last()
                                 .unwrap(),
-                        );
-                    }
-
-                    let last_idx = it.0 + it.1.len();
-                    if last_idx < input.len() {
-                        allow &= char_guard(
+                        )
+                        && char_guard(
                             input[(last_idx)..(input.ceil_char_boundary(last_idx + 1))]
                                 .chars()
                                 .last()
                                 .unwrap(),
-                        );
-                    }
-
-                    allow.then_some(it.0)
+                        ))
+                    .then_some(it.0)
                 })
                 .collect()
         })