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7f0f7929ba
- Replaced ISO Latin 1 code #160 with a plain blank space (ASCII code #32) where necessary git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@15305 87f5fb63-7c3d-0410-a384-fd976d0f7a62
96 lines
3.3 KiB
C
96 lines
3.3 KiB
C
/*
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* $Id: unistd_strip_double_slash.c,v 1.4 2006-01-08 12:04:27 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _UNISTD_HEADERS_H
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#include "unistd_headers.h"
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#endif /* _UNISTD_HEADERS_H */
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/****************************************************************************/
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/* Remove '//' from an AmigaDOS path name. For example, "volume:one/two//three"
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is equivalent to "volume:one/three" and the following function removes the
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redundant part of the path. */
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int
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__strip_double_slash(char * file_name,int len)
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{
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int position;
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position = len;
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while(len > 1)
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{
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position--;
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/* Stop when we hit the volume name or the first character of the name. */
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if((position == 0) || (file_name[position] == ':') || (file_name[position - 1] == ':'))
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break;
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/* Do we have a // embedded in the file_name? That // must stand alone
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between directory names and not in front of a volume name or
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yet another /. */
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if((position > 1) && (file_name[position] == '/' && file_name[position - 1] == '/') && (file_name[position - 2] != ':' && file_name[position - 2] != '/'))
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{
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int start,delta;
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start = position;
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/* Back up behind the //. */
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position -= 2;
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/* Find the spot where the previous directory or volume
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name begins. */
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while((position > 0) && (file_name[position] != ':') && (file_name[position] != '/'))
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position--;
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/* Don't move too far. */
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if((file_name[position] == ':') || (file_name[position] == '/'))
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position++;
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/* Find out how long the directory name is that
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we are going to remove now. */
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delta = start - position + 1;
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/* Remove the file_name part; we copy one more byte than
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necessary to account for the NUL at the end. */
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len -= delta;
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memmove(&file_name[position],&file_name[position + delta],len - position + 1);
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/* The string is shorter, and here we go again... */
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position = len;
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}
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}
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return(len);
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}
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