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/* File name wild card expansion for VMS.
This file is part of the etags program.
Copyright (C) 1987 Free Software Foundation, Inc. 3 Feb 1987
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
what you give them. Help stamp out software-hoarding! */
#include <stdio.h>
typedef char tbool;
/* This is a BUG! ANY arbitrary limit is a BUG!
Won't someone please fix this? */
#define MAX_FILE_SPEC_LEN 255
typedef struct {
short curlen;
char body[MAX_FILE_SPEC_LEN + 1];
} vspec;
#define EOS '\0'
#define NO 0
#define YES 1
#define NULL 0
/* v1.01 nmm 19-Aug-85 gfnames - return in successive calls the
name of each file specified by all the remaining args in the command-line
expanding wild cards and
stepping over arguments when they have been processed completely
*/
char*
gfnames(pac, pav, p_error)
int *pac;
char **pav[];
tbool *p_error;
{
static vspec filename = {MAX_FILE_SPEC_LEN, "\0"};
short fn_exp();
while (1)
if (*pac == 0)
{
*p_error = NO;
return(NULL);
}
else switch(fn_exp(&filename, **pav))
{
case 1:
*p_error = NO;
return(filename.body);
break;
case 0:
--*pac;
++*pav;
break;
default:
*p_error = YES;
return(filename.body);
break;
}
}
/* v1.05 nmm 26-Jun-86 fn_exp - expand specification of list of file names
returning in each successive call the next filename matching the input
spec. The function expects that each in_spec passed
to it will be processed to completion; in particular, up to and
including the call following that in which the last matching name
is returned, the function ignores the value of in_spec, and will
only start processing a new spec with the following call.
If an error occurs, on return out_spec contains the value
of in_spec when the error occurred.
With each successive filename returned in out_spec, the
function's return value is one. When there are no more matching
names the function returns zero. If on the first call no file
matches in_spec, or there is any other error, -1 is returned.
*/
#include <rmsdef.h>
#include <descrip.h>
#define OUTSIZE MAX_FILE_SPEC_LEN
short
fn_exp(out, in)
vspec *out;
char *in;
{
static long context = 0;
static struct dsc$descriptor_s o;
static struct dsc$descriptor_s i;
static tbool pass1 = YES;
long status;
short retval;
if (pass1)
{
pass1 = NO;
o.dsc$a_pointer = (char *) out;
o.dsc$w_length = (short)OUTSIZE;
i.dsc$a_pointer = in;
i.dsc$w_length = (short)strlen(in);
i.dsc$b_dtype = DSC$K_DTYPE_T;
i.dsc$b_class = DSC$K_CLASS_S;
o.dsc$b_dtype = DSC$K_DTYPE_VT;
o.dsc$b_class = DSC$K_CLASS_VS;
}
if ( (status = lib$find_file(&i, &o, &context, 0, 0)) == RMS$_NORMAL)
{
out->body[out->curlen] = EOS;
return(1);
}
else if (status == RMS$_NMF)
retval = 0;
else
{
strcpy(out->body, in);
retval = -1;
}
lib$find_file_end(&context);
pass1 = YES;
return(retval);
}
#ifndef OLD /* Newer versions of VMS do provide `system'. */
system(cmd)
char *cmd;
{
fprintf(stderr, "system() function not implemented under VMS\n");
}
#endif
#define VERSION_DELIM ';'
char *massage_name(s)
char *s;
{
char *start = s;
for ( ; *s; s++)
if (*s == VERSION_DELIM)
{
*s = EOS;
break;
}
else
*s = tolower(*s);
return(start);
}
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