From 227d0422da0062410c85529bc999d7e509d9de78 Mon Sep 17 00:00:00 2001
From: Anders Betts <anders.betts@gmail.com>
Date: Tue, 22 Sep 2026 09:04:27 +0200
Subject: documents: org name in the invoice and payslip headers,
 document_header_color

---
 src/util.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'src/util.c')

diff --git a/src/util.c b/src/util.c
index 9543875..7882642 100644
--- a/src/util.c
+++ b/src/util.c
@@ -276,6 +276,19 @@ char *util_str_trim(char *s)
     return s;
 }
 
+int util_hex_color_valid(const char *s)
+{
+    if (!s || s[0] != '#' || strlen(s) != 7)
+        return 0;
+    for (int i = 1; i < 7; i++) {
+        char c = s[i];
+        if (!((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') ||
+              (c >= 'A' && c <= 'F')))
+            return 0;
+    }
+    return 1;
+}
+
 static int is_leap(int y)
 {
     return (y % 4 == 0 && y % 100 != 0) || y % 400 == 0;
-- 
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