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netcdf-c/ncgen/main.c
Ed Hartnett 18f4bca367 moving to trunk subdir
2010-06-03 13:24:43 +00:00

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/*********************************************************************
* Copyright 1993, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
*********************************************************************/
/* $Id: main.c,v 1.33 2010/05/26 21:43:36 dmh Exp $ */
/* $Header: /upc/share/CVS/netcdf-3/ncgen/main.c,v 1.33 2010/05/26 21:43:36 dmh Exp $ */
#include "includes.h"
#include "offsets.h"
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
/* Default is netcdf-3 mode 1 */
#define DFALTCMODE 0
extern void init_netcdf(void);
extern void parse_init(void);
extern int ncgparse(void);
/* Default is netcdf-3 mode 1 */
#define DFALTCMODE 0
/* For error messages */
char* progname;
char* cdlname;
int kflag_flag; /* 1 => -k was specified on command line*/
int cmode_modifier;
int nofill_flag;
char* mainname; /* name to use for main function; defaults to "main"*/
int c_flag;
int binary_flag;
int f77_flag;
int cml_flag;
int java_flag; /* 1=> use netcdf java interface (=>usingclassic)*/
size_t nciterbuffersize;
struct Vlendata* vlendata;
char *netcdf_name; /* command line -o file name */
char *datasetname; /* name from the netcdf <name> {} */
/* Misc. flags*/
int usingclassic;
int allowspecial; /* are special attributes ok to use */
extern FILE *ncgin;
/* Forward */
static char* ubasename ( const char* av0 );
void usage ( void );
int main ( int argc, char** argv );
/* Define tables vs modes for legal -k values*/
#define NKVALUES 14
struct Kvalues legalkinds[NKVALUES] = {
{"1", 0},
{"classic", 0},
/* The 64-bit offset kind (2) should only be used if actually needed */
{"2", NC_64BIT_OFFSET},
{"64-bit-offset", NC_64BIT_OFFSET},
{"64-bit offset", NC_64BIT_OFFSET},
/* NetCDF-4 HDF5 format*/
{"3", NC_NETCDF4},
{"hdf5", NC_NETCDF4},
{"netCDF-4", NC_NETCDF4},
{"enhanced", NC_NETCDF4},
/* NetCDF-4 HDF5 format, but using only nc3 data model */
{"4", NC_NETCDF4 | NC_CLASSIC_MODEL},
{"hdf5-nc3", NC_NETCDF4 | NC_CLASSIC_MODEL},
{"netCDF-4 classic model", NC_NETCDF4 | NC_CLASSIC_MODEL},
{"enhanced-nc3", NC_NETCDF4 | NC_CLASSIC_MODEL},
/* null terminate*/
{NULL,0}
};
struct Languages {
char* name;
int* flag;
} legallanguages[] = {
{"b", &binary_flag},
{"c", &c_flag},
{"C", &c_flag},
{"f77", &f77_flag},
{"fortran77", &f77_flag},
{"Fortran77", &f77_flag},
{"j", &java_flag},
{"java", &java_flag},
{NULL,NULL}
};
/* The default minimum iterator size depends
on whether we are doing binary or language
based output.
*/
#define DFALTBINNCITERBUFFERSIZE 0x40000 /* about 250k bytes */
#define DFALTLANGNCITERBUFFERSIZE 0x4000 /* about 15k bytes */
/* strip off leading path */
/* result is malloc'd */
static char *
ubasename(const char *av0)
{
char *logident = nulldup(av0);
char* sep;
sep = strrchr(logident,'/');
#ifdef MSDOS
if(sep == NULL) sep = strrchr(logident,'\\');
#endif
if(sep == NULL) return logident;
sep++; /* skip past the separator */
return sep;
}
void
usage(void)
{
derror("Usage: %s [ -b ] [ -c ] [ -f ] [ -k kind ] [ -x ] [-S struct-format] [-M <name> [ -o outfile] [ file ... ]",
progname);
derror("netcdf library version %s", nc_inq_libvers());
}
int
main(
int argc,
char *argv[])
{
int c;
FILE *fp;
int languages = 0;
#ifdef __hpux
setlocale(LC_CTYPE,"");
#endif
init_netcdf();
opterr = 1; /* print error message if bad option */
progname = ubasename(argv[0]);
cdlname = "-";
netcdf_name = NULL;
datasetname = NULL;
c_flag = 0;
f77_flag = 0;
cml_flag = 0;
java_flag = 0;
binary_flag = 0;
kflag_flag = 0;
cmode_modifier = 0;
nofill_flag = 0;
mainname = "main";
nciterbuffersize = 0;
#if _CRAYMPP && 0
/* initialize CRAY MPP parallel-I/O library */
(void) par_io_init(32, 32);
#endif
while ((c = getopt(argc, argv, "bcfk:l:no:v:xdM:D:B:")) != EOF)
switch(c) {
case 'd':
debug = 1;
break;
case 'D':
debug = atoi(optarg);
break;
case 'c': /* for c output, old version of "-lc" */
c_flag = 1;
fprintf(stderr,"-c is deprecated: please use -lc\n");
break;
case 'f': /* for f77 output, old version of "-lf" */
f77_flag = 1;
fprintf(stderr,"-f is deprecated: please use -lf77\n");
break;
case 'b': /* for binary netcdf output, ".nc" extension */
binary_flag = 1;
break;
case 'l': /* specify language, instead of using -c or -f or -b */
{
struct Languages* langs;
char* lang_name = (char*) emalloc(strlen(optarg)+1);
(void)strcpy(lang_name, optarg);
for(langs=legallanguages;langs->name != NULL;langs++) {
if(strcmp(lang_name,langs->name)==0) {
*(langs->flag) = 1;
break;
}
}
if(langs->name == NULL) {
derror("%s: output language %s not implemented",
progname, lang_name);
return(1);
}
}
break;
case 'n': /* old version of -b, uses ".cdf" extension */
binary_flag = -1;
break;
case 'o': /* to explicitly specify output name */
netcdf_name = nulldup(optarg);
break;
case 'x': /* set nofill mode to speed up creation of large files */
nofill_flag = 1;
break;
case 'v': /* a deprecated alias for "kind" option */
/*FALLTHRU*/
case 'k': /* for specifying variant of netCDF format to be generated
Possible values are:
1 (=> classic 32 bit)
2 (=> classic 64 bit)
3 (=> enhanced)
4 (=> classic, but stored in an enhanced file format)
Also provide string versions of above
"classic"
"64-bit-offset"
"64-bit offset"
"enhanced" | "hdf5" | "netCDF-4"
"enhanced-nc3" | "hdf5-nc3" | "netCDF-4 classic model"
*/
{
struct Kvalues* kvalue;
char *kind_name = (char *) emalloc(strlen(optarg)+1);
if (! kind_name) {
derror ("%s: out of memory", progname);
return(1);
}
(void)strcpy(kind_name, optarg);
for(kvalue=legalkinds;kvalue->name;kvalue++) {
if(strcmp(kind_name,kvalue->name) == 0) {
cmode_modifier = kvalue->mode;
break;
}
}
if(kvalue->name == NULL) {
derror("Invalid format: %s",kind_name);
return 2;
}
kflag_flag = 1;
}
break;
case 'M': /* Determine the name for the main function */
mainname = nulldup(optarg);
break;
case 'B':
nciterbuffersize = atoi(optarg);
break;
case '?':
usage();
return(8);
}
/* check for multiple or no language spec */
if(c_flag) languages++;
if(binary_flag) languages++;
if(f77_flag)languages++;
if(cml_flag) languages++;
if(java_flag) languages++;
if(languages > 1) {
fprintf(stderr,"Please specify only one language\n");
} else if(languages == 0) {
binary_flag = 1; /* binary is default */
}
/* Compute/default the iterator buffer size */
if(binary_flag) {
if(nciterbuffersize == 0 )
nciterbuffersize = DFALTBINNCITERBUFFERSIZE;
} else {
if(nciterbuffersize == 0)
nciterbuffersize = DFALTLANGNCITERBUFFERSIZE;
}
#ifndef ENABLE_C
if(c_flag) {
fprintf(stderr,"C not currently supported\n");
exit(1);
}
#endif
#ifndef ENABLE_BINARY
if(binary_flag) {
fprintf(stderr,"Binary netcdf not currently supported\n");
exit(1);
}
#endif
#ifndef ENABLE_JAVA
if(java_flag) {
fprintf(stderr,"Java not currently supported\n");
exit(1);
}
#else
if(java_flag && strcmp(mainname,"main")==0) mainname = "Main";
#endif
#ifndef ENABLE_F77
if(f77_flag) {
fprintf(stderr,"F77 not currently supported\n");
exit(1);
}
#endif
argc -= optind;
argv += optind;
if (argc > 1) {
derror ("%s: only one input file argument permitted",progname);
return(6);
}
fp = stdin;
if (argc > 0 && strcmp(argv[0], "-") != 0) {
if ((fp = fopen(argv[0], "r")) == NULL) {
derror ("can't open file %s for reading: ", argv[0]);
perror("");
return(7);
}
cdlname = (char*)emalloc(NC_MAX_NAME);
cdlname = nulldup(argv[0]);
if(strlen(cdlname) > NC_MAX_NAME) cdlname[NC_MAX_NAME] = '\0';
}
/* Initially set up the cmode value and related items*/
if(kflag_flag == 0) cmode_modifier = DFALTCMODE;
usingclassic = 0;
allowspecial = 0;
/* Do first pass on flags */
if((cmode_modifier & NC_NETCDF4) != 0) {
allowspecial = 1;
if((cmode_modifier & NC_CLASSIC_MODEL)) {
usingclassic = 1;
} else {
usingclassic = 0;
}
} else {
usingclassic = 1;
}
/* F77 || STD java => classic */
if(f77_flag || java_flag) {
usingclassic=1;
cmode_modifier &= ~(NC_NETCDF4);
}
/* Standard Unidata java interface => usingclassic */
parse_init();
ncgin = fp;
if(debug >= 2) {ncgdebug=1;}
if(ncgparse() != 0) return 1;
/* Recompute flags */
if((cmode_modifier & NC_NETCDF4) != 0) {
allowspecial = 1;
if((cmode_modifier & NC_CLASSIC_MODEL)) {
usingclassic = 1;
} else {
usingclassic = 0;
}
} else {
usingclassic = 1;
}
#ifndef USE_NETCDF4
allowspecial = 0;
#endif
processsemantics();
define_netcdf();
return 0;
}
void
init_netcdf(void) /* initialize global counts, flags */
{
compute_alignments();
memset((void*)&nullconstant,0,sizeof(Constant));
fillconstant = nullconstant;
fillconstant.nctype = NC_FILLVALUE;
nullstringconstant = nullconstant;
nullstringconstant.nctype = NC_STRING;
nullstringconstant.value.stringv.len = 0;
nullstringconstant.value.stringv.stringv = nulldup("");
codebuffer = bbNew();
stmt = bbNew();
}
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