From d9bc42d464d41fa367953da671409f5225eaa8b1 Mon Sep 17 00:00:00 2001
From: Ruben van de Ven <git@rubenvandeven.com>
Date: Fri, 11 Nov 2022 12:07:18 +0100
Subject: [PATCH] Regex ignores trailing period

---
 src/reference.ts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/reference.ts b/src/reference.ts
index 128ef71..0f78e37 100644
--- a/src/reference.ts
+++ b/src/reference.ts
@@ -13,16 +13,20 @@ export interface Reference {
     range: Range;
 }
 
-// TODO match citations in brackets [@citation] inline @citatinon,
+// TODO match citations in brackets [@citation] inline @cita_tion,
 // but also page number in [see @citation p.23] and
 // inlince @citation [p.23] (so brackets after inline)
+// [@citation pp.10-20] matches page 10
+// [@citation p10] without period is also valid
+// accept a period @citation.2022 but NOT ending on a period (e.g. ignore the period in @citation. because of end of a sentence)
 // TODO possibly use https://github.com/martinring/markdown-it-citations/blob/ba82a511de047a2438b4ac060c4c71b5a5c82da9/src/index.ts#L43
 export function findReferences(document: TextDocument): Reference[] {
     const matches: Reference[] = [];
     for (let lineNr = 0; lineNr < document.lineCount; lineNr++) {
         const line = document.lineAt(lineNr);
         let match: RegExpExecArray | null;
-        let regex = /(?<=@)([\w\.]+)[, ]*\[?(?:[p]{0,2}\.)?(\d+)?(?:-+\d+)?\]?/g;
+        
+        let regex = /(?<=@)([\w\.]+)(?<!\.)[, ]*\[?(?:[p]{0,2}\.?)?(\d+)?(?:-+\d+)?\]?/g;
         regex.lastIndex = 0;
         const text = line.text;//.substring(0, 1000);
         while ((match = regex.exec(text))) {