1 files changed, 10 insertions, 0 deletions
diff --git a/src/utf8code.c b/src/utf8code.c
index 9613ba95..1c1e4336 100644
--- a/src/utf8code.c
+++ b/src/utf8code.c
@@ -45,6 +45,16 @@ unsigned utf8_encode(char *out, uint32_t c)
     return 0;
 }
 
+uint32_t utf8_peek(const char* s, int pos) {
+    int inc = 1;
+    if (pos < 0) pos = -pos, inc = -1;
+    while (pos)
+        pos -= (*(s += inc) & 0xC0) != 0x80;
+    utf8_decode_t d = {.state=0};
+    do { utf8_decode(&d, (uint8_t)*s++); } while (d.state);
+    return d.codep;
+}
+
 bool utf8_valid(const char* s) {
     utf8_decode_t d = {.state=0};
     while (*s)