/* absolute.c: Test if a filename is absolute or explicitly relative. Copyright 1997, 2002, 2005 Olaf Weber. Copyright 1993, 94, 95 Karl Berry. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 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 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])))); /* FIXME: On UNIX an IS_DIR_SEP of any but the last character in the name implies relative. */ return absolute || explicit_relative; #endif /* not VMS */ } #ifdef TEST int main() { char **name; char *t[] = { "./foo", "\\\\server\\foo\\bar", "ftp://localhost/foo" }; for (name = t; name - t < sizeof(t)/sizeof(char*); name++) { printf("Path `%s' %s absolute.\n", *name, (kpse_absolute_p(*name, true) ? "is" : "is not")); } } #endif /* TEST */