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authorThomas Voss <mail@thomasvoss.com> 2024-01-27 23:26:42 +0100
committerThomas Voss <mail@thomasvoss.com> 2024-01-27 23:26:42 +0100
commit679f7928e27a95e559eb3a69febf0c6336e40234 (patch)
treeaf9c5bb35253086eb8e3ad3d7774e7349b3beefe /vendor/librune/lib/utf8/u8prev.c
parentfd502fd87b40ae7f60314d8d9009f739f1c5fcf3 (diff)
Bump librune
Diffstat (limited to 'vendor/librune/lib/utf8/u8prev.c')
-rw-r--r--vendor/librune/lib/utf8/u8prev.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/vendor/librune/lib/utf8/u8prev.c b/vendor/librune/lib/utf8/u8prev.c
index fac0fc7..a219ae9 100644
--- a/vendor/librune/lib/utf8/u8prev.c
+++ b/vendor/librune/lib/utf8/u8prev.c
@@ -1,9 +1,10 @@
+#define _RUNE_NO_MACRO_WRAPPER 1
#include "rune.h"
#include "utf8.h"
#include "internal/common.h"
-const char8_t *
+int
u8prev(rune *ch, const char8_t **p, const char8_t *start)
{
int off;
@@ -12,7 +13,7 @@ u8prev(rune *ch, const char8_t **p, const char8_t *start)
ptrdiff_t d = s - start;
if (d <= 0) {
- return nullptr;
+ return 0;
} else if (U1(s[-1])) {
*ch = s[-1];
off = 1;
@@ -29,9 +30,11 @@ u8prev(rune *ch, const char8_t **p, const char8_t *start)
} else
match = false;
- if (match && u8chkr(*ch))
- return *p -= off;
+ if (!(match && u8chkr(*ch))) {
+ *ch = RUNE_ERROR;
+ off = 1;
+ }
- *ch = RUNE_ERROR;
- return *p--;
+ *p -= off;
+ return off;
}