56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/* string-extras.h */
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/*
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This file is part of the AVR-Crypto-Lib.
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Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file string-extras.h
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* \author Daniel Otte
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* \date 2006-05-16
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* \license GPLv3 or later
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*
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*/
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/** \fn stridentcnt_P(char *a, PGM_P b)
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* \brief counts the number of identic chars
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*
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* This function compares the supplyed strings and returns the index of the
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* first char where the strings differ.
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* \param a pointer to string in RAM
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* \param b pointer to string in Flash
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* \return index of the first char where \c a and \c b differ
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*/
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uint16_t stridentcnt_P(char *a, PGM_P b);
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/** \fn firstword_length(char *s)
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* \brief compute the length of the first word in supllyed string
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*
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* This function searches for the first whitespace in the string and returns the
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* number of chars before the first whitespace.
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* \param s string
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* \return number of chars in first word
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*/
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uint16_t firstword_length(char *s);
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/** \fn strstrip(char *str)
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* \brief removes whitespace at the beginning and the end of a string
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*
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* This function removes whitespaces at the end of a string.
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* \param str sting
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* \return pointer to the first non-whitespace char in string
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*/
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char *strstrip(char *str);
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