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-rw-r--r--strings/apr_strtok.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/strings/apr_strtok.c b/strings/apr_strtok.c
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+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifdef HAVE_STDDEF_H
+#include <stddef.h> /* for NULL */
+#endif
+
+#include "apr.h"
+#include "apr_strings.h"
+
+#define APR_WANT_STRFUNC /* for strchr() */
+#include "apr_want.h"
+
+APR_DECLARE(char *) apr_strtok(char *str, const char *sep, char **last)
+{
+ char *token;
+
+ if (!str) /* subsequent call */
+ str = *last; /* start where we left off */
+
+ /* skip characters in sep (will terminate at '\0') */
+ while (*str && strchr(sep, *str))
+ ++str;
+
+ if (!*str) /* no more tokens */
+ return NULL;
+
+ token = str;
+
+ /* skip valid token characters to terminate token and
+ * prepare for the next call (will terminate at '\0)
+ */
+ *last = token + 1;
+ while (**last && !strchr(sep, **last))
+ ++*last;
+
+ if (**last) {
+ **last = '\0';
+ ++*last;
+ }
+
+ return token;
+}