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authorNicholas Noll <nbnoll@eml.cc>2021-10-26 21:32:55 -0700
committerNicholas Noll <nbnoll@eml.cc>2021-10-26 21:51:49 -0700
commit189b9e23edfe60b7e82c4c7b6071a3f98799653a (patch)
tree77c1f32726446deb298a0d2e6389358bfe16bd32 /sys/libunicode/find.c
parent29b56ef4e4113bcd091b19d6926f18814162ca53 (diff)
fix(unicode): renamed functions to be easier to understand their functions
Diffstat (limited to 'sys/libunicode/find.c')
-rw-r--r--sys/libunicode/find.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/sys/libunicode/find.c b/sys/libunicode/find.c
new file mode 100644
index 0000000..659ab5b
--- /dev/null
+++ b/sys/libunicode/find.c
@@ -0,0 +1,30 @@
+#include "internal.h"
+
+byte*
+utf8·find(byte* s, rune c)
+{
+ long c1;
+ rune r;
+ int n;
+
+ if(c < RuneSync)
+ return strchr(s, c);
+
+ for(;;){
+ c1 = *(ubyte*)s;
+ if(c1 < RuneSelf) {
+ if(c1 == 0) return nil;
+ if(c1 == c) return s;
+ s++;
+ continue;
+ }
+ n = utf8·decode(s, &r);
+
+ if(r == c)
+ return s;
+
+ s += n;
+ }
+
+ return nil;
+}