respect UTF-8 when splitting long lines in plain.cc (noticed by corvid)

When splitting long lines in plain text to avoid X11 coordinate
overflows we need to make sure that multibyte UTF-8 chars are not
split.
Additionally combining chars like accents should stay together with
their base char.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/misc.h b/src/misc.h
index d8de0238..0b4eaaa5 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -10,7 +10,7 @@ extern "C" {
 
 
 char *a_Misc_escape_chars(const char *str, const char *esc_set);
-char *a_Misc_expand_tabs(const char *str, int len);
+int a_Misc_expand_tabs(char **start, char *end, char *buf, int buflen);
 int a_Misc_get_content_type_from_data(void *Data, size_t Size,const char **PT);
 int a_Misc_content_type_check(const char *EntryType, const char *DetectedType);
 void a_Misc_parse_content_type(const char *str, char **major, char **minor,