void initializeNcl()
{
/*
*NhlInitialize();
*/
_NclInitMachine();
_NclInitSymbol();
_NclInitTypeClasses();
_NclInitDataClasses();
}
int
main(int argc, char **argv) {
int errid = -1;
int appid;
int i, k = 0;
int reset = 1;
DIR *d;
struct dirent *ent;
#if defined(HPUX)
shl_t so_handle;
#else
void *so_handle;
#endif /* defined(HPUX) */
char buffer[4 * NCL_MAX_STRING];
void (*init_function) (void);
char *libpath;
char *scriptpath;
char *pt;
char *tmp = NULL;
/*
* Variables for command line options/arguments
*/
char *myName; /* argv[0]: program name (should be 'ncl') */
char **NCL_ARGV;
int NCL_ARGC; /* local argv/argc -- future use for NCL scripts? */
int c;
char **cargs = NULL;
int nargs = 0;
struct stat sbuf;
int sr;
FILE *tmpf = NULL; /* file variables for creating arguments */
char *tmpd = NULL;
strcpy(buffer,(char *)GetNCARGPath("tmp"));
sr = access(buffer,W_OK|X_OK|F_OK);
if(sr != 0) {
NhlPError(NhlWARNING,NhlEUNKNOWN,
"\"%s\" tmp dir does not exist or is not writable: NCL functionality may be limited -- check TMPDIR environment variable",
buffer);
}
#ifdef YYDEBUG
extern int yydebug;
yydebug = 1;
#endif /* YYDEBUG */
error_fp = stderr;
stdout_fp = stdout;
stdin_fp = stdin;
ncopts = NC_VERBOSE;
cmd_line =isatty(fileno(stdin));
myName = NclMalloc(strlen(argv[0]) + 1);
(void) strcpy(myName, argv[0]);
/*
* Save NCL argv, for command line processing later use
*/
NCL_ARGV = (char **) NclMalloc(argc * sizeof(char *));
for (i = 0; i < argc; i++) {
NCL_ARGV[i] = (char *) NclMalloc((strlen(argv[i]) + 1) * sizeof(char *));
(void) strcpy(NCL_ARGV[i], argv[i]);
}
NCL_ARGC = argc;
for(i = 0; i < _NclNumberOfFileFormats; ++i)
NCLadvancedFileStructure[i] = 0;
#ifdef NCLDEBUG
for (i = 0; i < NCL_ARGC; i++, *NCL_ARGV++)
(void) printf("NCL_ARGV[%d] = %s\n", i, *NCL_ARGV);
#endif /* NCLDEBUG */
/*
* Defined arguments
*
* -n element print: don't enumerate elements in print()
* -x echo: turns on command echo
* -V version: output NCARG/NCL version, exit
* -o old behavior: retain former behavior for backwards incompatible changes
* -h help: output options and exit
*
* -X override: echo every stmt regardless (unannounced option)
* -Q override: don't echo copyright notice (unannounced option)
*/
opterr = 0; /* turn off getopt() msgs */
while ((c = getopt (argc, argv, "fhnoxVXQp")) != -1) {
switch (c) {
case 'p':
NCLnoSysPager = 1;
break;
case 'n':
NCLnoPrintElem = 1;
break;
case 'o':
NCLoldBehavior = 1;
break;
case 'x':
NCLecho = 1;
break;
/* NOT ADVERTISED! Will override "no echo" and print EVERYTHING! */
case 'X':
NCLoverrideEcho = 1;
break;
/* NOT ADVERTISED! Will not echo copyright notice! */
case 'Q':
NCLnoCopyright = 1;
break;
case 'V':
(void) fprintf(stdout, "%s\n", GetNCLVersion());
exit(0);
break;
case 'f':
for(i = 0; i < _NclNumberOfFileFormats; ++i)
NCLadvancedFileStructure[i] = 1;
break;
case 'h':
(void) fprintf(stdout, "Usage: ncl -fhnpxV <args> <file.ncl>\n");
(void) fprintf(stdout, "\t -f: Use New File Structure, and NetCDF4 features\n");
(void) fprintf(stdout, "\t -n: don't enumerate values in print()\n");
(void) fprintf(stdout, "\t -p: don't page output from the system() command\n");
(void) fprintf(stdout, "\t -o: retain former behavior for certain backwards-incompatible changes\n");
(void) fprintf(stdout, "\t -x: echo NCL commands\n");
(void) fprintf(stdout, "\t -V: print NCL version and exit\n");
(void) fprintf(stdout, "\t -h: print this message and exit\n");
exit(0);
break;
case '?':
if (isprint(optopt))
(void) fprintf(stderr, "Unknown option `-%c'\n", optopt);
else
(void) fprintf(stderr, "Unknown option character `\\x%x'\n", optopt);
break;
default:
break;
}
}
/*
* Announce NCL copyright notice, etc.
*/
if (!NCLnoCopyright)
(void) fprintf(stdout,
" Copyright (C) 1995-2013 - All Rights Reserved\n University Corporation for Atmospheric Research\n NCAR Command Language Version %s\n The use of this software is governed by a License Agreement.\n See http://www.ncl.ucar.edu/ for more details.\n", GetNCLVersion());
/* Process any user-defined arguments */
for (i = optind; i < argc; i++) {
#ifdef NCLDEBUG
(void) printf("Non-option argument %s\n", argv[i]);
#endif /* NCLDEBUG */
/*
* Is this a file of NCL commands? Can't assume ".ncl" tag, unfortunately.
* Check for file's existence; the stat() call does not require access rights
* but does require search path rights, so if this fails, the file could exist
* but the user may not have permission to "see" it.
*/
sr = stat(argv[i], &sbuf);
if (sr == 0) {
#ifdef NCLDEBUG
(void) printf("NCL commands file: %s\n", argv[i]);
#endif /* NCLDEBUG */
nclf = argv[i];
continue;
}
if (sr < 0) {
if (!strchr(argv[i], '=')) {
/* argument is intended to be a file; can't locate it */
NhlPError(NhlFATAL, NhlEUNKNOWN, " can't find file \"%s\"\n", argv[i]);
exit(NhlFATAL);
} else {
/* user-defined argument */
if (nargs == 0)
cargs = (char **) NclMalloc(sizeof(char *));
else
cargs = (char **) NclRealloc(cargs, (nargs + 1) * sizeof(char *));
cargs[nargs] = (char *) NclMalloc((strlen(argv[i]) + 2) * sizeof(char *));
(void) sprintf(cargs[nargs], "%s\n", argv[i]);
nargs++;
}
}
}
if(nclf){
NCL_PROF_INIT(nclf);
}
else{
NCL_PROF_INIT("cmdline");
}
error_fp = stderr;
stdout_fp = stdout;
stdin_fp = stdin;
cur_line_text = NclMalloc((unsigned int) 512);
cur_line_maxsize = 512;
cur_line_text_pos = &(cur_line_text[0]);
#ifdef NCLDEBUG
thefptr = fopen("ncl.tree", "w");
theoptr = fopen("ncl.seq", "w");
#else
thefptr = NULL;
theoptr = NULL;
#endif /* NCLDEBUG */
/*
* Note: child processes should use _exit() instead of exit() to avoid calling the atexit()
* functions prematurely
*/
NhlInitialize();
NhlVACreate(&appid, "ncl", NhlappClass, NhlDEFAULT_APP,
NhlNappDefaultParent, 1, NhlNappUsrDir, "./", NULL);
NhlPalLoadColormapFiles(NhlworkstationClass,False);
errid = NhlErrGetID();
NhlVAGetValues(errid, NhlNerrFileName, &tmp, NULL);
if ((tmp == NULL) || (!strcmp(tmp, "stderr")))
NhlVASetValues(errid, NhlNerrFilePtr, stdout, NULL);
_NclInitMachine();
_NclInitSymbol();
_NclInitTypeClasses();
_NclInitDataClasses();
/* if the -o flag is specified do stuff to make NCL backwards compatible */
if (NCLoldBehavior) {
_NclSetDefaultFillValues(NCL_5_DEFAULT_FILLVALUES);
}
/* Handle default directories */
if ((libpath = getenv("NCL_DEF_LIB_DIR")) != NULL) {
d = opendir(_NGResolvePath(libpath));
if (d != NULL) {
while((ent = readdir(d)) != NULL) {
if (*ent->d_name != '.') {
(void) sprintf(buffer, "%s/%s", _NGResolvePath(libpath), ent->d_name);
#if defined (HPUX)
so_handle = shl_load(buffer, BIND_IMMEDIATE, 0L);
#else
so_handle = dlopen(buffer, RTLD_NOW);
if (so_handle == NULL) {
NhlPError(NhlFATAL, NhlEUNKNOWN,
"Could not open (%s): %s.", buffer, dlerror());
}
#endif /* HPUX */
if (so_handle != NULL) {
#if defined (HPUX)
init_function = NULL;
(void) shl_findsym(&so_handle, "Init",
TYPE_UNDEFINED, (void *) &init_function);
#else
init_function = dlsym(so_handle, "Init");
#endif /* HPUX */
if (init_function != NULL) {
(*init_function)();
} else {
#if defined (HPUX)
shl_unload(so_handle);
#else
dlclose(so_handle);
#endif /* HPUX */
NhlPError(NhlWARNING, NhlEUNKNOWN,
"Could not find Init() in external file %s, file not loaded.",
buffer);
}
}
}
}
} else {
NhlPError(NhlWARNING, NhlEUNKNOWN,
"Could not open default library path (%s), no libraries loaded.", libpath);
}
_NclResetNewSymStack();
}
if (cmd_line == 1) {
InitializeReadLine(1);
/*
* This next line is only to deal with an optimization bug with gcc
* version 4.0.1 on MacOS 10.4. It apparently saw that "cmd_line"
* was already of value 1 before it went into NclSetPromptFunc, so
* when it optimized the code, it ignored the "cmd_line = 1" line
* right after the NclSetPromptFunc call. Since NclSetPrompFunc
* was setting cmd_line =2, this meant that the value of cmd_line
* stayed 2, which is the wrong value.
*/
cmd_line = 0;
NclSetPromptFunc(nclprompt, NULL);
cmd_line = 1;
cmd_line_is_set = 1;
} else {
InitializeReadLine(0);
}
/* Load default scripts */
/* These need to be loaded in alphabetical order to ensure that users can control
* the order of loading. There is a BSD function scandir that would do it all but it
* might not be standardized enough to be uniformly available on all systems, so for
* now it must be coded just using readdir.
*/
if ((scriptpath = getenv("NCL_DEF_SCRIPTS_DIR")) != NULL) {
d = opendir(_NGResolvePath(scriptpath));
if (d!= NULL) {
int script_count = 0, alloc_count = 32;
NrmQuark *qscript_names = NclMalloc(alloc_count * sizeof(NrmQuark));
while((ent = readdir(d)) != NULL) {
if (*ent->d_name != '.') {
(void) sprintf(buffer, "%s/%s", _NGResolvePath(scriptpath), ent->d_name);
pt = strrchr(buffer, '.');
if (pt != NULL) {
pt++;
if (strncmp(pt, "ncl", 3) == 0) {
if (script_count == alloc_count) {
alloc_count *= 2;
qscript_names = NclRealloc(qscript_names,alloc_count * sizeof(NrmQuark));
}
qscript_names[script_count++] = NrmStringToQuark(ent->d_name);
}
}
}
}
if (script_count == 0) {
NhlPError(NhlWARNING, NhlEUNKNOWN,
"No scripts found: scripts must have the \".ncl\" file extension.");
}
else {
qsort(qscript_names,script_count,sizeof(NrmQuark),quark_comp);
for (i = 0; i < script_count; i++) {
(void) sprintf(buffer, "%s/%s", _NGResolvePath(scriptpath), NrmQuarkToString(qscript_names[i]));
if (_NclPreLoadScript(buffer, 1) == NhlFATAL) {
NhlPError(NhlFATAL, NhlEUNKNOWN, "Error loading default script.");
} else {
yyparse(reset);
}
}
NclFree(qscript_names);
}
} else {
NhlPError(NhlWARNING, NhlEUNKNOWN,
" Could not open default script path (%s), no scripts loaded.", scriptpath);
}
}
/*
* Create the new args
*
* Ideally this would be done using calls to the parser/stack engine but there is
* no clean interface to that process. Investigate _NclParseString() in the future.
*
* For now, create a temporary file with NCL commands and execute it.
*/
if (nargs) {
cmd_line = 0; /* non-interactive */
tmpd = (char *) _NGGetNCARGEnv("tmp"); /* defaults to: /tmp */
(void) sprintf(buffer, "%s/ncl%d.ncl", tmpd, getpid());
tmpf = fopen(buffer, "w");
for (k = 0; k < nargs; k++) {
if ((strstr(cargs[k], "=")) == (char *) NULL)
NhlPError(NhlWARNING, NhlEUNKNOWN, " Improper assignment for variable %s", cargs[k]);
else
(void) fwrite(cargs[k], strlen(cargs[k]), 1, tmpf);
}
/* don't forget last newline; NCL requires it */
(void) fwrite("\n", 1, 1, tmpf);
(void) fclose(tmpf);
if (_NclPreLoadScript(buffer, 1) == NhlFATAL) {
NhlPError(NhlFATAL, NhlEUNKNOWN, "Error initializing command line arguments.");
(void) unlink(buffer);
} else {
yyparse(reset);
}
(void) unlink(buffer);
cmd_line = 1; /* reset to default: interactive */
}
/* Load utility script */
strcpy(buffer, _NGResolvePath("$NCARG_ROOT/lib/ncarg/nclscripts/utilities.ncl"));
sr = stat(buffer, &sbuf);
if(0 == sr)
{
if(_NclPreLoadScript(buffer, 1) == NhlFATAL)
{
NclReturnStatus = NclFileNotFound;
NhlPError(NhlINFO, NhlEUNKNOWN, "Error loading NCL utility script.");
}
else
yyparse(reset);
}
/* Load any provided script */
if (nclf != (char *) NULL) {
(void) strcpy(buffer, _NGResolvePath(nclf));
if (_NclPreLoadScript(buffer, 0) == NhlFATAL)
{
NclReturnStatus = NclFileNotFound;
NhlPError(NhlFATAL, NhlEUNKNOWN, "Error loading provided NCL script.");
}
else
yyparse(reset);
} else {
yyparse(reset);
}
#ifdef NCLDEBUG
(void) fclose(thefptr);
(void) fprintf(stdout,"Number of unfreed objects %d\n",_NclNumObjs());
_NclObjsSize(stdout);
_NclNumGetObjCals(stdout);
_NclPrintUnfreedObjs(theoptr);
(void) fprintf(stdout,"Number of constants used %d\n",number_of_constants);
(void) fclose(theoptr);
#endif /* NCLDEBUG */
NclFree(myName);
_NclExit(NclReturnStatus);
return NclReturnStatus;
}