words: allow the creation of irregular words

Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/lib/mihi/src/lib.rs b/lib/mihi/src/lib.rs
index e965fdf..f944b82 100644
--- a/lib/mihi/src/lib.rs
+++ b/lib/mihi/src/lib.rs
@@ -247,6 +247,12 @@ pub enum Conjugation {
     Third,
     ThirdIo,
     Fourth,
+
+    // The 'Other' conjugation is a container for a bunch of verbs like 'sum',
+    // 'volō', etc. That is, we expect the user to realize this is an irregular
+    // verb, and then we rely on the 'kind' column to determine which kind of
+    // irregular verb that is. This is better than enlarging a list of kinds of
+    // irregular verbs as it was done in the past.
     Other,
 }
 
@@ -284,6 +290,33 @@ impl std::fmt::Display for Conjugation {
     }
 }
 
+impl Conjugation {
+    /// Returns a String containing how a conjugation would be displayed by also
+    /// considering the given 'kind' identifier. This way we can display 'other'
+    /// conjugations in a more natural way.
+    pub fn display_with_kind(&self, kind: &str) -> String {
+        if !matches!(self, Conjugation::Other) {
+            return format!("{}", self);
+        }
+
+        match kind {
+            "sum" => "irregular; like 'sum, esse, fuī, futūrus'",
+            "possum" => "irregular; like 'possum, posse, potuī'",
+            "eo" => "irregular; like 'eō, īre, iī, itum'",
+            "volo" => "irregular; like 'volō, velle, voluī'",
+            "nolo" => "irregular; like 'nōlō, nōlle, nōluī'",
+            "malo" => "irregular; like 'mālō, mālle, māluī'",
+            "fero" => "irregular; like 'ferō, ferre, tulī, lātum'",
+            "facio" => "3rd (-iō variants) and suppletive; like 'faciō, facere, fēcī, factum'",
+            "do" => "1st; irregular short ă in most forms",
+            "inquam" => "irregular, highly defective",
+            "aio" => "3rd (-iō variants); highly defective",
+            _ => "other",
+        }
+        .to_string()
+    }
+}
+
 #[derive(Clone, Debug, Default)]
 pub enum Language {
     #[default]