From 1906208025389852f9fd13bc52d2647bc34bd49e Mon Sep 17 00:00:00 2001
From: Virgil <virgil@lethean.io>
Date: Thu, 2 Apr 2026 01:34:45 +0000
Subject: [PATCH] feat(reversal): handle spaced French elision articles

Co-Authored-By: Virgil <virgil@lethean.io>
---
 reversal/tokeniser.go      | 27 +++++++++++++++++++++++++++
 reversal/tokeniser_test.go | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 61 insertions(+)

diff --git a/reversal/tokeniser.go b/reversal/tokeniser.go
index 13e2729..b00cfbf 100644
--- a/reversal/tokeniser.go
+++ b/reversal/tokeniser.go
@@ -899,6 +899,33 @@ func (t *Tokeniser) matchFrenchArticlePhrase(parts []string, start int) (int, To
 				}
 				return 2, tok, &extra, punctTok
 			}
+			// Handle spaced elision forms such as "de l' enfant" or "de l’ enfant".
+			if (second == "l'" || second == "l’") && start+2 < len(parts) {
+				third, thirdPunct := splitTrailingPunct(parts[start+2])
+				if third != "" {
+					tok := Token{
+						Raw:        first + " " + second,
+						Lower:      core.Lower(first + " " + second),
+						Type:       TokenArticle,
+						ArtType:    "definite",
+						Confidence: 1.0,
+					}
+					extra := t.classifyElidedFrenchWord(third)
+					var punctTok *Token
+					if thirdPunct != "" {
+						if punctType, ok := matchPunctuation(thirdPunct); ok {
+							punctTok = &Token{
+								Raw:        thirdPunct,
+								Lower:      thirdPunct,
+								Type:       TokenPunctuation,
+								PunctType:  punctType,
+								Confidence: 1.0,
+							}
+						}
+					}
+					return 3, tok, &extra, punctTok
+				}
+			}
 			return 0, Token{}, nil, nil
 		}
 		tok := Token{
diff --git a/reversal/tokeniser_test.go b/reversal/tokeniser_test.go
index 39afe22..5fb3a05 100644
--- a/reversal/tokeniser_test.go
+++ b/reversal/tokeniser_test.go
@@ -356,6 +356,40 @@ func TestTokeniser_Tokenise_FrenchElision(t *testing.T) {
 		t.Fatalf("tokens[1].Lower = %q, want %q", tokens[1].Lower, "enfant")
 	}
 
+	tokens = tok.Tokenise("de l' enfant")
+	if len(tokens) != 2 {
+		t.Fatalf("Tokenise(%q) returned %d tokens, want 2", "de l' enfant", len(tokens))
+	}
+	if tokens[0].Type != TokenArticle {
+		t.Fatalf("tokens[0].Type = %v, want TokenArticle", tokens[0].Type)
+	}
+	if tokens[0].Lower != "de l'" {
+		t.Fatalf("tokens[0].Lower = %q, want %q", tokens[0].Lower, "de l'")
+	}
+	if tokens[1].Type != TokenNoun {
+		t.Fatalf("tokens[1].Type = %v, want TokenNoun", tokens[1].Type)
+	}
+	if tokens[1].Lower != "enfant" {
+		t.Fatalf("tokens[1].Lower = %q, want %q", tokens[1].Lower, "enfant")
+	}
+
+	tokens = tok.Tokenise("de l’ enfant")
+	if len(tokens) != 2 {
+		t.Fatalf("Tokenise(%q) returned %d tokens, want 2", "de l’ enfant", len(tokens))
+	}
+	if tokens[0].Type != TokenArticle {
+		t.Fatalf("tokens[0].Type = %v, want TokenArticle", tokens[0].Type)
+	}
+	if tokens[0].Lower != "de l’" {
+		t.Fatalf("tokens[0].Lower = %q, want %q", tokens[0].Lower, "de l’")
+	}
+	if tokens[1].Type != TokenNoun {
+		t.Fatalf("tokens[1].Type = %v, want TokenNoun", tokens[1].Type)
+	}
+	if tokens[1].Lower != "enfant" {
+		t.Fatalf("tokens[1].Lower = %q, want %q", tokens[1].Lower, "enfant")
+	}
+
 	tokens = tok.Tokenise("d'enfant")
 	if len(tokens) != 2 {
 		t.Fatalf("Tokenise(%q) returned %d tokens, want 2", "d'enfant", len(tokens))
-- 
2.45.3