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77 lines
2.4 KiB
77 lines
2.4 KiB
18 years ago
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/*
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* Copyright (c) 2007 Mans Rullgard
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVUTIL_STRING_H
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#define AVUTIL_STRING_H
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#include <stddef.h>
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/**
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* Return non-zero if pfx is a prefix of str. If it is, *ptr is set to
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* the address of the first character in str after the prefix.
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*
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* @param str input string
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* @param pfx prefix to test
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* @param ptr updated after the prefix in str in there is a match
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* @return non-zero if the prefix matches, zero otherwise
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*/
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int av_strstart(const char *str, const char *pfx, const char **ptr);
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/**
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* Return non-zero if pfx is a prefix of str independent of case. If
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* it is, *ptr is set to the address of the first character in str
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* after the prefix.
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*
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* @param str input string
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* @param pfx prefix to test
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* @param ptr updated after the prefix in str in there is a match
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* @return non-zero if the prefix matches, zero otherwise
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*/
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int av_stristart(const char *str, const char *pfx, const char **ptr);
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/**
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* Copy the string src to dst, but no more than size - 1 bytes, and
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* null terminate dst.
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*
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* This function is the same as BSD strlcpy().
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*
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* @param dst destination buffer
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* @param src source string
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* @param size size of destination buffer
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* @return the length of src
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*/
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size_t av_strlcpy(char *dst, const char *src, size_t size);
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/**
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* Append the string src to the string dst, but to a total length of
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* no more than size - 1 bytes, and null terminate dst.
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*
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* This function is similar to BSD strlcat(), but differs when
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* size <= strlen(dst).
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*
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* @param dst destination buffer
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* @param src source string
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* @param size size of destination buffer
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* @return the total length of src and dst
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*/
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size_t av_strlcat(char *dst, const char *src, size_t size);
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#endif /* AVUTIL_STRING_H */
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