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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "xpp.h"
#include "../../bootProto.h"
#define import_spp
#define import_knames
#include <iraf.h>
/*
* Main routine for the XPP preprocessor (first pass of the SPP compiler).
*/
#define IRAFDEFS "host$hlib/iraf.h"
int errflag;
int foreigndefs;
int hbindefs = 0;
char irafdefs[SZ_PATHNAME];
char *pkgenv = NULL;
char v_pkgenv[SZ_FNAME];
extern FILE *yyin;
extern FILE *yyout;
extern char fname[][SZ_PATHNAME];
extern int linenum[];
extern char *vfn2osfn();
extern char *os_getenv();
char *dottor();
extern void ZZSTRT (void);
extern void ZZSTOP (void);
extern int yylex (void);
static int isxfile (char *fname);
int main (int argc, char *argv[])
{
int i, rfflag, nfiles;
FILE *fp_defs, *source;
char *p;
ZZSTRT();
errflag = XPP_OK;
linenum[0] = 1;
rfflag = NO;
nfiles = 0;
/* Process flags and count the number of files.
*/
for (i=1; argv[i] != NULL; i++) {
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 'R':
/* Write .r file. */
rfflag = YES;
break;
case 'r':
/* Not used anymore */
if ((p = argv[++i]) == NULL)
--i;
break;
case 'h':
/* Use custom irafdefs file. */
if ((p = argv[++i]) == NULL)
--i;
else {
foreigndefs++;
strcpy (irafdefs, p);
}
break;
case 'A':
/* Use architecture-specific include file. */
hbindefs++;
break;
case 'p':
/* Load the environment for the named package. */
if ((pkgenv = argv[++i]) == NULL)
--i;
else
loadpkgenv (pkgenv);
break;
default:
fprintf (stderr, "unknown option '%s'\n", argv[i]);
fflush (stderr);
}
} else if (isxfile (argv[i]))
nfiles++;
}
/* If no package environment was specified on the command line,
* check if the user has a default package set in their environment.
*/
if (!pkgenv) {
if ((pkgenv = os_getenv("PKGENV"))) {
strcpy (v_pkgenv, pkgenv);
loadpkgenv (pkgenv = v_pkgenv);
}
}
/* Generate pathname of <iraf.h>.
*/
if (!foreigndefs)
strcpy (irafdefs, vfn2osfn (IRAFDEFS,0));
/* Process either the standard input or a list of files.
*/
if (nfiles == 0) {
yyin = stdin;
yyout = stdout;
strcpy (fname[0], "STDIN");
yylex();
} else {
/* Preprocess each file.
*/
for (i=1; argv[i] != NULL; i++)
if (isxfile (argv[i])) {
if (nfiles > 1) {
fprintf (stderr, "%s:\n", argv[i]);
fflush (stderr);
}
/* Open source file.
*/
if ((source = fopen (vfn2osfn(argv[i],0), "r")) == NULL) {
fprintf (stderr, "cannot read file %s\n", argv[i]);
fflush (stderr);
errflag |= XPP_BADXFILE;
} else {
/* Open output file.
*/
if (rfflag) {
char *osfn;
osfn = vfn2osfn (dottor (argv[i]), 0);
if ((yyout = fopen (osfn, "w")) == NULL) {
fprintf (stderr,
"cannot write output file %s\n", osfn);
fflush (stderr);
errflag |= XPP_BADXFILE;
fclose (yyin);
continue;
}
} else
yyout = stdout;
/* Open and process hlib$iraf.h.
*/
if ((fp_defs = fopen (irafdefs, "r")) == NULL) {
fprintf (stderr, "cannot open %s\n", irafdefs);
ZZSTOP();
exit (XPP_COMPERR);
}
yyin = fp_defs;
yylex();
linenum[0] = 1;
fclose (fp_defs);
/* Process the source file.
*/
strcpy (fname[0], argv[i]);
yyin = source;
yylex();
fclose (source);
if (rfflag)
fclose (yyout);
}
}
}
ZZSTOP();
exit (errflag);
return (0);
}
/* ISXFILE -- Does the named file have a ".x" extension.
*/
static int
isxfile (char *fname)
{
char *p;
if (fname[0] != '-') {
for (p=fname; *p++ != EOS; )
;
while (*--p != '.' && p >= fname)
;
if (*p == '.' && *(p+1) == 'x')
return (YES);
}
return (NO);
}
/* DOTTOR -- Change the extension of the named file to ".r".
*/
char *
dottor (fname)
char *fname;
{
static char rfname[SZ_PATHNAME+1];
char *ip, *op, *lastdot;
lastdot = NULL;
for (ip=fname, op=rfname; (*op = *ip++); op++)
if (*op == '.')
lastdot = op;
if (lastdot) {
*(lastdot+1) = 'r';
*(lastdot+2) = EOS;
}
return (rfname);
}
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