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Ruta de la carpeta: \\game3dprogramming\materials\DarkPuzzle\libs\bullet_sdk\jam-2.5\pathmac.c
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/* * Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc. * * This file is part of Jam - see jam.c for Copyright information. */ /* * pathunix.c - manipulate file names on UNIX, NT, OS2 * * External routines: * * path_parse() - split a file name into dir/base/suffix/member * path_build() - build a filename given dir/base/suffix/member * path_parent() - make a PATHNAME point to its parent dir * * File_parse() and path_build() just manipuate a string and a structure; * they do not make system calls. * * 04/08/94 (seiwald) - Coherent/386 support added. * 12/26/93 (seiwald) - handle dir/.suffix properly in path_build() * 12/19/94 (mikem) - solaris string table insanity support * 12/21/94 (wingerd) Use backslashes for pathnames - the NT way. * 02/14/95 (seiwald) - parse and build /xxx properly * 02/23/95 (wingerd) Compilers on NT can handle "/" in pathnames, so we * should expect hdr searches to come up with strings * like "thing/thing.h". So we need to test for "/" as * well as "\" when parsing pathnames. * 03/16/95 (seiwald) - fixed accursed typo on line 69. * 05/03/96 (seiwald) - split from filent.c, fileunix.c * 12/20/96 (seiwald) - when looking for the rightmost . in a file name, * don't include the archive member name. * 01/10/01 (seiwald) - path_parse now strips the trailing : from the * directory name, unless the directory name is all * :'s, so that $(d:P) works. * 11/04/02 (seiwald) - const-ing for string literals */ # include "jam.h" # include "pathsys.h" # ifdef OS_MAC # define DELIM ':' /* * path_parse() - split a file name into dir/base/suffix/member */ void path_parse( const char *file, PATHNAME *f ) { const char *p, *q; const char *end; memset( (char *)f, 0, sizeof( *f ) ); /* Look for
*/ if( file[0] == '<' && ( p = strchr( file, '>' ) ) ) { f->f_grist.ptr = file; f->f_grist.len = p - file; file = p + 1; } /* Look for dir: */ if( p = strrchr( file, DELIM ) ) { f->f_dir.ptr = file; f->f_dir.len = p - file; file = p + 1; /* All :'s? Include last : as part of directory name */ while( p > f->f_dir.ptr && *--p == DELIM ) ; if( p == f->f_dir.ptr ) f->f_dir.len++; } end = file + strlen( file ); /* Look for (member) */ if( ( p = strchr( file, '(' ) ) && end[-1] == ')' ) { f->f_member.ptr = p + 1; f->f_member.len = end - p - 2; end = p; } /* Look for .suffix */ /* This would be memrchr() */ p = 0; q = file; while( q = memchr( q, '.', end - q ) ) p = q++; if( p ) { f->f_suffix.ptr = p; f->f_suffix.len = end - p; end = p; } /* Leaves base */ f->f_base.ptr = file; f->f_base.len = end - file; } /* * path_build() - build a filename given dir/base/suffix/member */ # define DIR_EMPTY 0 /* "" */ # define DIR_DOT 1 /* : */ # define DIR_DOTDOT 2 /* :: */ # define DIR_ABS 3 /* dira:dirb: */ # define DIR_REL 4 /* :dira:dirb: */ # define G_DIR 0 /* take dir */ # define G_ROOT 1 /* take root */ # define G_CAT 2 /* prepend root to dir */ # define G_DTDR 3 /* :: of rel dir */ # define G_DDDD 4 /* make it ::: (../..) */ # define G_MT 5 /* leave it empty */ char grid[5][5] = { /* EMPTY DOT DOTDOT ABS REL */ /* EMPTY */ { G_MT, G_DIR, G_DIR, G_DIR, G_DIR }, /* DOT */ { G_ROOT, G_DIR, G_DIR, G_DIR, G_DIR }, /* DOTDOT */ { G_ROOT, G_ROOT, G_DDDD, G_DIR, G_DTDR }, /* ABS */ { G_ROOT, G_ROOT, G_ROOT, G_DIR, G_CAT }, /* REL */ { G_ROOT, G_ROOT, G_ROOT, G_DIR, G_CAT } } ; static int file_flags( const char *ptr, int len ) { if( !len ) return DIR_EMPTY; if( len == 1 && ptr[0] == DELIM ) return DIR_DOT; if( len == 2 && ptr[0] == DELIM && ptr[1] == DELIM ) return DIR_DOTDOT; if( ptr[0] == DELIM ) return DIR_REL; return DIR_ABS; } void path_build( PATHNAME *f, char *file, int binding ) { char *ofile = file; int dflag, rflag, act; if( DEBUG_SEARCH ) { printf("build file: "); if( f->f_root.len ) printf( "root = '%.*s' ", f->f_root.len, f->f_root.ptr ); if( f->f_dir.len ) printf( "dir = '%.*s' ", f->f_dir.len, f->f_dir.ptr ); if( f->f_base.len ) printf( "base = '%.*s' ", f->f_base.len, f->f_base.ptr ); } /* Start with the grist. If the current grist isn't */ /* surrounded by <>'s, add them. */ if( f->f_grist.len ) { if( f->f_grist.ptr[0] != '<' ) *file++ = '<'; memcpy( file, f->f_grist.ptr, f->f_grist.len ); file += f->f_grist.len; if( file[-1] != '>' ) *file++ = '>'; } /* Combine root & directory, according to the grid. */ dflag = file_flags( f->f_dir.ptr, f->f_dir.len ); rflag = file_flags( f->f_root.ptr, f->f_root.len ); switch( act = grid[ rflag ][ dflag ] ) { case G_DTDR: /* :: of rel dir */ *file++ = DELIM; /* fall through */ case G_DIR: /* take dir */ memcpy( file, f->f_dir.ptr, f->f_dir.len ); file += f->f_dir.len; break; case G_ROOT: /* take root */ memcpy( file, f->f_root.ptr, f->f_root.len ); file += f->f_root.len; break; case G_CAT: /* prepend root to dir */ memcpy( file, f->f_root.ptr, f->f_root.len ); file += f->f_root.len; if( file[-1] == DELIM ) --file; memcpy( file, f->f_dir.ptr, f->f_dir.len ); file += f->f_dir.len; break; case G_DDDD: /* make it ::: (../..) */ strcpy( file, ":::" ); file += 3; break; } /* Put : between dir and file (if none already) */ if( act != G_MT && file[-1] != DELIM && ( f->f_base.len || f->f_suffix.len ) ) { *file++ = DELIM; } if( f->f_base.len ) { memcpy( file, f->f_base.ptr, f->f_base.len ); file += f->f_base.len; } if( f->f_suffix.len ) { memcpy( file, f->f_suffix.ptr, f->f_suffix.len ); file += f->f_suffix.len; } if( f->f_member.len ) { *file++ = '('; memcpy( file, f->f_member.ptr, f->f_member.len ); file += f->f_member.len; *file++ = ')'; } *file = 0; if( DEBUG_SEARCH ) printf(" -> '%s'\n", ofile); } /* * path_parent() - make a PATHNAME point to its parent dir */ void path_parent( PATHNAME *f ) { /* just set everything else to nothing */ f->f_base.ptr = f->f_suffix.ptr = f->f_member.ptr = ""; f->f_base.len = f->f_suffix.len = f->f_member.len = 0; } # endif /* OS_MAC */
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