Tabbing now works, impelemented preliminary error message handling

src/texts/bible.rs

@@ -102,7 +102,7 @@ pub fn search_for_word(word: &str, from_files: &Bible) -> Vec<String> {
     found
 }
 
-pub fn get(book: &str, chap_and_ver: &str, bibles: Vec<&Bible>) -> Option<String> {
+pub fn get(book: &str, chap_and_ver: &str, bibles: Vec<&Bible>) -> Result<String, String> {
     // expecting query to be in format:
     // Gen 1:2
     // Gen 1:2-5
@@ -135,11 +135,11 @@ pub fn get(book: &str, chap_and_ver: &str, bibles: Vec<&Bible>) -> Option<String
             for (_, i) in &res {
                 eprintln!("\t{i}");
             }
-            return None;
+            return Err(format!("Ambigious input '{book}'"));
         }
         _ => {
             eprintln!("'{book}' is not a book");
-            return None;
+            return Err(format!("'{book}' is not a book"));
         }
     };
 
@@ -162,10 +162,10 @@ pub fn get(book: &str, chap_and_ver: &str, bibles: Vec<&Bible>) -> Option<String
                 .map(|(bible,book,chapter)| (*bible,*book,chapter.unwrap()))
                 .collect::<Vec<(&Bible, &Book, &Chapter)>>()
         } else {
-            return None;
+            return Err(format!("Chapter number could not be parsed from {chapter}"));
         }
     } else {
-        return None;
+        return Err(format!("A chapter was not passed"));
     };
 
     // Get the verse in each Bible
@@ -190,9 +190,9 @@ pub fn get(book: &str, chap_and_ver: &str, bibles: Vec<&Bible>) -> Option<String
                                 }
                             }
                         }
-                        return Some(buf);
+                        return Ok(buf);
                     }
-                    return None;
+                    return Err(format!("Could not parse '{sn}' or '{en}' into numbers"));
                 }
                 // only one verse
                 (Some(ver_num), None) => {
@@ -206,13 +206,13 @@ pub fn get(book: &str, chap_and_ver: &str, bibles: Vec<&Bible>) -> Option<String
                                 );
                             }
                         }
-                        return Some(buf);
+                        return Ok(buf);
                     }
-                    return None;
+                    return Err(format!("Could not parse '{ver_num}' into a number"));
                 }
                 _ => {
                     // couldn't parse verse
-                    return None;
+                    return Err(format!("Couldn't parse '{:?}' or '{:?}' into verse numbers", start, end));
                 }
             }
         }
@@ -226,7 +226,7 @@ pub fn get(book: &str, chap_and_ver: &str, bibles: Vec<&Bible>) -> Option<String
                 );
                 buf += &format!("{}", chapter);
             }
-            return Some(buf);
+            return Ok(buf);
         }
     }
 }