Update the return value of Verse::spellcheck()

Instead of returning true or false, if a given bin is found on the
$PATH, return the index of where the bin was found. This is useful, in
case we want to actually get the full path of the bin.

If a full or relative path is specified, the function will return the
length of the bins vector.

1 files changed, 13 insertions, 12 deletions

diff --git a/src/poem/elements/verse.rs b/src/poem/elements/verse.rs
index 5694b55..a1ae65f 100644
--- a/src/poem/elements/verse.rs
+++ b/src/poem/elements/verse.rs
@@ -192,16 +192,16 @@ impl Verse {
     /// let stanza_success = Stanza::new(command_success);
     /// let stanza_fail = Stanza::new(command_fail);
     ///
-    /// stanza_success.spellcheck(bins) // -> true
-    /// stanza_fail.spellcheck(bins) // -> false
+    /// stanza_success.spellcheck(bins) // -> Some(i)
+    /// stanza_fail.spellcheck(bins) // -> None
     /// ```
-    pub fn spellcheck(&self, bins: &Vec<String>) -> bool {
+    pub fn spellcheck(&self, bins: &Vec<String>) -> Option<usize> {
         // An empty verb (i.e. the empty string) cannot be a program, so
         // return false
         // Thanks to the parsing in Poem::read, however, it's
         // unlikely for this to happen
         if self.verb().is_empty() {
-            return false;
+            return None;
         }
 
         // Only search the $PATH if a full or relative path was not given, or
@@ -209,17 +209,18 @@ impl Verse {
         if !Path::new(self.verb().as_str()).exists() {
             // Try to find a binary in our path with the same name as the verb
             // Searches in $PATH order
-            match bins
-                .iter()
-                .find(|bin| bin.split('/').last().unwrap() == self.verb())
-            {
-                Some(_) => return true,
-                None => return false,
+            for (i, path) in bins.iter().enumerate() {
+                if path.split('/').last().unwrap() == self.verb() {
+                    return Some(i);
+                }
             }
+
+            // If it was not found, return None
+            return None;
         }
 
-        // Return true if the full path or relative path exists
-        true
+        // Return the length of bins if the full path or relative path exists
+        Some(bins.len())
     }
 
     /// Run a command