1/* Licensed to the Apache Software Foundation (ASF) under one or more 2 * contributor license agreements. See the NOTICE file distributed with 3 * this work for additional information regarding copyright ownership. 4 * The ASF licenses this file to You under the Apache License, Version 2.0 5 * (the "License"); you may not use this file except in compliance with 6 * the License. You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifdef HAVE_STDDEF_H 18#include <stddef.h> /* for NULL */ 19#endif 20 21#include "apr.h" 22#include "apr_strings.h" 23 24#define APR_WANT_STRFUNC /* for strchr() */ 25#include "apr_want.h" 26 27APR_DECLARE(char *) apr_strtok(char *str, const char *sep, char **last) 28{ 29 char *token; 30 31 if (!str) /* subsequent call */ 32 str = *last; /* start where we left off */ 33 34 /* skip characters in sep (will terminate at '\0') */ 35 while (*str && strchr(sep, *str)) 36 ++str; 37 38 if (!*str) /* no more tokens */ 39 return NULL; 40 41 token = str; 42 43 /* skip valid token characters to terminate token and 44 * prepare for the next call (will terminate at '\0) 45 */ 46 *last = token + 1; 47 while (**last && !strchr(sep, **last)) 48 ++*last; 49 50 if (**last) { 51 **last = '\0'; 52 ++*last; 53 } 54 55 return token; 56} 57