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-rw-r--r--degesch.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/degesch.c b/degesch.c
index ea93fdf..3b1bc9a 100644
--- a/degesch.c
+++ b/degesch.c
@@ -5134,9 +5134,11 @@ utf8_common_prefix (const char **vector, size_t len)
{
for (size_t i = 1; i < len; i++)
{
- // Not bothering with lowercasing non-ASCII
int32_t other = utf8_iter_next (&a[i], NULL);
- if (other < 0 || ch >= 0x80 || other >= 0x80
+ if (ch == other)
+ continue;
+ // Not bothering with lowercasing non-ASCII
+ if (ch >= 0x80 || other >= 0x80
|| tolower_ascii (ch) != tolower_ascii (other))
return prefix;
}