/* absolute.c: Test if a filename is absolute or explicitly relative. Copyright (C) 1993, 94, 95 Karl Berry. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include /* Sorry this is such a system-dependent mess, but I can't see any way to usefully generalize. */ boolean kpse_absolute_p P2C(const_string, filename, boolean, relative_ok) { #ifdef VMS #include return strcspn (filename, "]>:") != strlen (filename); #else /* not VMS */ boolean absolute = IS_DIR_SEP (*filename) #ifdef DOSISH /* Novell allows non-alphanumeric drive letters. */ || (*filename && IS_DEVICE_SEP (filename[1])) #endif /* DOSISH */ #ifdef WIN32 /* UNC names */ || (*filename == '\\' && filename[1] == '\\') #endif #ifdef AMIGA /* Colon anywhere means a device. */ || strchr (filename, ':') #endif /* AMIGA */ ; boolean explicit_relative = relative_ok #ifdef AMIGA /* Leading / is like `../' on Unix and DOS. Allow Unix syntax, too, though, because of possible patch programs like `UnixDirsII' by Martin Scott. */ && IS_DIR_SEP (*filename) || 0 #endif /* AMIGA */ && (*filename == '.' && (IS_DIR_SEP (filename[1]) || (filename[1] == '.' && IS_DIR_SEP (filename[2])))); return absolute || explicit_relative; #endif /* not VMS */ }