tag values are corrupted

[tantra35]

if we will send metrics with follow tags values vmrange=8.799e-01...1.000e+00, tag value will be demaged as transformation to vmrange=8.799e-01.1.000e+00,

here 3 dots was replaced by one, as in this case transformation is wrong for tag value

[tantra35]

seems that follow patch solve problem, it's not ideal, but if it acceptable we can make a PR:

From eb6c7de1c66a8d357e0475cd19a5afd791650e29 Mon Sep 17 00:00:00 2001
From: tantra35 <ruslan.usifov@gmail.com>
Date: Thu, 15 Dec 2022 21:05:31 +0300
Subject: [PATCH] fix tag demage

---
 dispatcher.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/dispatcher.c b/dispatcher.c
index 4facd7f..4ba6012 100644
--- a/dispatcher.c
+++ b/dispatcher.c
@@ -1021,6 +1021,7 @@ dispatch_received_metrics(connection *conn, dispatcher *self)
 	firstspace = NULL;
 	lastnl = NULL;
 	search_tags = self->tags_supported;
+	char tagfound = 0;
 	for (p = conn->buf; p - conn->buf < conn->buflen; p++) {
 		if (*p == '\n' || *p == '\r') {
 			/* end of metric */
@@ -1086,12 +1087,19 @@ dispatch_received_metrics(connection *conn, dispatcher *self)
 				/* metric_path separator or space,
 				 * - duplicate elimination
 				 * - don't start with separator/space */
-				if (*(q - 1) != *p && (q - 1) != firstspace)
-					*q++ = *p;
+				if (tagfound == 0) {
+					if (*(q - 1) != *p && (q - 1) != firstspace)
+						*q++ = *p;
+				} else {
+					if ((q - 1) != firstspace) {
+						*q++ = *p;
+					}
+				}
 			}
 		} else if (search_tags && *p == ';') {
 			/* copy up to next space */
 			search_tags = 0;
+			tagfound = 1;
 			firstspace = q;
 			*q++ = *p;
 		} else if (
-- 
2.35.1.windows.2
 

[grobian]

I've applied a different way (to avoid any modifications/changes), can you try? Thanks!