76 lines
3.0 KiB
C
76 lines
3.0 KiB
C
/****************************************************************************
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* libs/libc/string/lib_strtok.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <string.h>
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static FAR char *g_saveptr = NULL;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: strtok
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*
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* Description:
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* The strtok() function parses a string into a
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* sequence of tokens. On the first call to strtok() the
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* string to be parsed should be specified in 'str'. In
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* each subsequent call that should parse the same string,
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* 'str' should be NULL.
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*
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* The 'delim' argument specifies a set of characters that
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* delimit the tokens in the parsed string. The caller
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* may specify different strings in delim in successive
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* calls that parse the same string.
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*
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* Each call to strtok() returns a pointer to a null-
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* terminated string containing the next token. This
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* string does not include the delimiting character. If
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* no more tokens are found, strtok() returns NULL.
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*
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* A sequence of two or more contiguous delimiter
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* characters in the parsed string is considered to be a
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* single delimiter. Delimiter characters at the start or
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* end of the string are ignored. The tokens returned by
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* strtok() are always non-empty strings.
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*
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* Returned Value:
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* strtok() returns a pointer to the next token, or NULL
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* if there are no more tokens.
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*
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****************************************************************************/
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#undef strtok /* See mm/README.txt */
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FAR char *strtok(FAR char *str, FAR const char *delim)
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{
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return strtok_r(str, delim, &g_saveptr);
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}
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