diff options
Diffstat (limited to 'strings/apr_strtok.c')
-rw-r--r-- | strings/apr_strtok.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/strings/apr_strtok.c b/strings/apr_strtok.c new file mode 100644 index 0000000..517b319 --- /dev/null +++ b/strings/apr_strtok.c @@ -0,0 +1,56 @@ +/* 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; +} |