From 8274db514fe2bbaeba61b2467c02b739c322d9c2 Mon Sep 17 00:00:00 2001
From: Jamie McClymont <jamie@kwiius.com>
Date: Mon, 15 Apr 2019 02:19:48 +1200
Subject: [PATCH] Group adjacent ranges of component refs in the BOM table

---
 InteractiveHtmlBom/web/ibom.js | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/InteractiveHtmlBom/web/ibom.js b/InteractiveHtmlBom/web/ibom.js
index 191a4728..ad538c00 100644
--- a/InteractiveHtmlBom/web/ibom.js
+++ b/InteractiveHtmlBom/web/ibom.js
@@ -390,7 +390,28 @@ function populateBomBody() {
     }
     // References
     td = document.createElement("TD");
-    td.innerHTML = highlightFilter(references.map(r => r[0]).join(", "));
+    var groupedRefs = [];
+    references.map(r => {
+        var match = r[0].match(/^(.*?)([0-9]+)$/);
+
+        if (match) {
+          return [match[1], parseInt(match[2]), r[0]];
+        } else {
+          return [r[0], NaN, r[0]];
+        }
+    }).forEach(([prefix, num, r]) => {
+      if (groupedRefs.length > 0) {
+        var last = groupedRefs[groupedRefs.length-1];
+        if (last[0] === prefix && last[1] === num-1) {
+          last[1] = num;
+          last[3] = r;
+          return;
+        }
+      }
+      groupedRefs.push([prefix, num, r, r]);
+    });
+
+    td.innerHTML = highlightFilter(groupedRefs.map(([prefix, num, r1, r2]) => (r1 === r2 ? r1 : r1+"-"+r2)).join(", "));
     tr.appendChild(td);
     // Extra fields
     for (var i in config.extra_fields) {