MINOR: standard: Add my_memspn and my_memcspn
Do the same than strsnp() and strcspn() but on a raw bytes buffer.
diff --git a/include/common/standard.h b/include/common/standard.h
index a6c3910..40991fa 100644
--- a/include/common/standard.h
+++ b/include/common/standard.h
@@ -1006,6 +1006,16 @@
*/
const void *my_memmem(const void *, size_t, const void *, size_t);
+/* get length of the initial segment consiting entirely of bytes within a given
+ * mask
+ */
+size_t my_memspn(const void *, size_t, const void *, size_t);
+
+/* get length of the initial segment consiting entirely of bytes not within a
+ * given mask
+ */
+size_t my_memcspn(const void *, size_t, const void *, size_t);
+
/* This function returns the first unused key greater than or equal to <key> in
* ID tree <root>. Zero is returned if no place is found.
*/
diff --git a/src/standard.c b/src/standard.c
index cf27248..1bca318 100644
--- a/src/standard.c
+++ b/src/standard.c
@@ -2292,6 +2292,32 @@
return NULL;
}
+/* get length of the initial segment consiting entirely of bytes in <accept> */
+size_t my_memspn(const void *str, size_t len, const void *accept, size_t acceptlen)
+{
+ size_t ret = 0;
+
+ while (ret < len && memchr(accept, *((int *)str), acceptlen)) {
+ str++;
+ ret++;
+ }
+ return ret;
+}
+
+/* get length of the initial segment consiting entirely of bytes not in <rejcet> */
+size_t my_memcspn(const void *str, size_t len, const void *reject, size_t rejectlen)
+{
+ size_t ret = 0;
+
+ while (ret < len) {
+ if(memchr(reject, *((int *)str), rejectlen))
+ return ret;
+ str++;
+ ret++;
+ }
+ return ret;
+}
+
/* This function returns the first unused key greater than or equal to <key> in
* ID tree <root>. Zero is returned if no place is found.
*/