mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-12-21 08:39:46 +08:00
1673 lines
46 KiB
Plaintext
1673 lines
46 KiB
Plaintext
/*********************************************************************
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* Copyright 2018, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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* $Id: ncgen.y,v 1.42 2010/05/18 21:32:46 dmh Exp $
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*********************************************************************/
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/* yacc source for "ncgen", a netCDL parser and netCDF generator */
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%define parse.error verbose
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%{
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/*
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static char SccsId[] = "$Id: ncgen.y,v 1.42 2010/05/18 21:32:46 dmh Exp $";
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*/
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#include "includes.h"
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#include "netcdf_aux.h"
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#include "ncgeny.h"
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#include "ncgen.h"
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#ifdef USE_NETCDF4
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#include "netcdf_filter.h"
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#endif
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/* Following are in ncdump (for now)*/
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/* Need some (unused) definitions to get it to compile */
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#define ncatt_t void*
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#define ncvar_t void
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#include "nctime.h"
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#undef GENLIB1
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/* parser controls */
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#define YY_NO_INPUT 1
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/* True if string a equals string b*/
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#ifndef NCSTREQ
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#define NCSTREQ(a, b) (*(a) == *(b) && strcmp((a), (b)) == 0)
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#endif
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#define VLENSIZE (sizeof(nc_vlen_t))
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#define MAXFLOATDIM 4294967295.0
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/* mnemonics */
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typedef enum Attrkind {ATTRVAR, ATTRGLOBAL, DONTKNOW} Attrkind;
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#define ISCONST 1
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#define ISLIST 0
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typedef nc_vlen_t vlen_t;
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/* We retain the old representation of the symbol list
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as a linked list.
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*/
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List* symlist;
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/* Track rootgroup separately*/
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Symbol* rootgroup;
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/* Track the group sequence */
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static List* groupstack;
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/* Provide a separate sequence for accumulating values
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during the parse.
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*/
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static List* stack;
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/* track homogeneity of types for data lists*/
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static nc_type consttype;
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/* Misc. */
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static int stackbase;
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static int stacklen;
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static int count;
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static int opaqueid; /* counter for opaque constants*/
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static int arrayuid; /* counter for pseudo-array types*/
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char* primtypenames[PRIMNO] = {
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"nat",
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"byte", "char", "short",
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"int", "float", "double",
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"ubyte", "ushort", "uint",
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"int64", "uint64",
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"string"
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};
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static int GLOBAL_SPECIAL = _NCPROPS_FLAG
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| _ISNETCDF4_FLAG
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| _SUPERBLOCK_FLAG
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| _FORMAT_FLAG ;
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/*Defined in ncgen.l*/
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extern int lineno; /* line number for error messages */
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extern Bytebuffer* lextext; /* name or string with escapes removed */
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extern double double_val; /* last double value read */
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extern float float_val; /* last float value read */
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extern long long int64_val; /* last int64 value read */
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extern int int32_val; /* last int32 value read */
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extern short int16_val; /* last short value read */
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extern unsigned long long uint64_val; /* last int64 value read */
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extern unsigned int uint32_val; /* last int32 value read */
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extern unsigned short uint16_val; /* last short value read */
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extern char char_val; /* last char value read */
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extern signed char byte_val; /* last byte value read */
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extern unsigned char ubyte_val; /* last byte value read */
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/* Track definitions of dims, types, attributes, and vars*/
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List* grpdefs;
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List* dimdefs;
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List* attdefs; /* variable-specific attributes*/
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List* gattdefs; /* global attributes only*/
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List* xattdefs; /* unknown attributes*/
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List* typdefs;
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List* vardefs;
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List* tmp;
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/* Forward */
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static NCConstant* makeconstdata(nc_type);
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static NCConstant* evaluate(Symbol* fcn, Datalist* arglist);
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static NCConstant* makeenumconstref(Symbol*);
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static void addtogroup(Symbol*);
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static Symbol* currentgroup(void);
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static Symbol* createrootgroup(const char*);
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static Symbol* creategroup(Symbol*);
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static int dupobjectcheck(nc_class,Symbol*);
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static void setpathcurrent(Symbol* sym);
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static Symbol* makeattribute(Symbol*,Symbol*,Symbol*,Datalist*,Attrkind);
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static Symbol* makeprimitivetype(nc_type i);
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static Symbol* makespecial(int tag, Symbol* vsym, Symbol* tsym, void* data, int isconst);
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static int containsfills(Datalist* list);
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static void vercheck(int ncid);
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static long long extractint(NCConstant* con);
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#ifdef USE_NETCDF4
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static int parsefilterflag(const char* sdata0, Specialdata* special);
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static int parsecodecsflag(const char* sdata0, Specialdata* special);
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static Symbol* identkeyword(const Symbol*);
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#ifdef GENDEBUG1
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static void printfilters(int nfilters, NC_H5_Filterspec** filters);
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#endif
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#endif
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int yylex(void);
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#ifndef NO_STDARG
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static void yyerror(const char *fmt, ...);
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#else
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static void yyerror(fmt,va_alist) const char* fmt; va_dcl;
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#endif
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/* Extern */
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extern int lex_init(void);
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%}
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/* DECLARATIONS */
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%union {
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Symbol* sym;
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unsigned long size; /* allow for zero size to indicate e.g. UNLIMITED*/
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long mark; /* track indices into the sequence*/
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int nctype; /* for tracking attribute list type*/
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Datalist* datalist;
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NCConstant* constant;
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}
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%token <sym>
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NC_UNLIMITED_K /* keyword for unbounded record dimension */
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CHAR_K /* keyword for char datatype */
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BYTE_K /* keyword for byte datatype */
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SHORT_K /* keyword for short datatype */
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INT_K /* keyword for int datatype */
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FLOAT_K /* keyword for float datatype */
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DOUBLE_K /* keyword for double datatype */
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UBYTE_K /* keyword for unsigned byte datatype */
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USHORT_K /* keyword for unsigned short datatype */
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UINT_K /* keyword for unsigned int datatype */
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INT64_K /* keyword for long long datatype */
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UINT64_K /* keyword for unsigned long long datatype */
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STRING_K /* keyword for string datatype */
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IDENT /* name for a dimension, variable, or attribute */
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TERMSTRING /* terminal string */
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CHAR_CONST /* char constant (not ever generated by ncgen.l) */
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BYTE_CONST /* byte constant */
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SHORT_CONST /* short constant */
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INT_CONST /* int constant */
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INT64_CONST /* long long constant */
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UBYTE_CONST /* unsigned byte constant */
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USHORT_CONST /* unsigned short constant */
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UINT_CONST /* unsigned int constant */
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UINT64_CONST /* unsigned long long constant */
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FLOAT_CONST /* float constant */
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DOUBLE_CONST/* double constant */
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DIMENSIONS /* keyword starting dimensions section, if any */
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VARIABLES /* keyword starting variables section, if any */
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NETCDF /* keyword declaring netcdf name */
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DATA /* keyword starting data section, if any */
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TYPES
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COMPOUND
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ENUM
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OPAQUE_ /* 'OPAQUE' apparently conflicts with HDF4 code */
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OPAQUESTRING /* 0x<even number of hexdigits> */
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GROUP
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PATH /* / or (/IDENT)+(.IDENT)? */
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FILLMARKER /* "_" as opposed to the attribute */
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NIL /* NIL */
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_FILLVALUE
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_FORMAT
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_STORAGE
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_CHUNKSIZES
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_DEFLATELEVEL
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_SHUFFLE
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_ENDIANNESS
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_NOFILL
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_FLETCHER32
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_NCPROPS
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_ISNETCDF4
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_SUPERBLOCK
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_FILTER
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_CODECS
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_QUANTIZEBG
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_QUANTIZEGBR
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_QUANTIZEBR
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DATASETID
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%type <sym> ident typename primtype dimd varspec
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attrdecl enumid path dimref fielddim fieldspec
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varident
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%type <sym> typeref
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%type <sym> varref
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%type <sym> ambiguous_ref
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%type <mark> enumidlist fieldlist fields varlist dimspec dimlist field
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fielddimspec fielddimlist
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%type <constant> dataitem constdata constint conststring constbool
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%type <constant> simpleconstant function econstref
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%type <datalist> datalist intlist datalist1 datalist0 arglist
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%start ncdesc /* start symbol for grammar */
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%%
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/* RULES */
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ncdesc: NETCDF
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datasetid
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rootgroup
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{if (error_count > 0) YYABORT;}
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;
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datasetid: DATASETID {createrootgroup(datasetname);};
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rootgroup: '{'
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groupbody
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subgrouplist
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'}';
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/* 2/3/08 - Allow group body with only attributes. (H/T John Storrs). */
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groupbody:
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attrdecllist
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typesection /* Type definitions */
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dimsection /* dimension declarations */
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vasection /* variable and attribute declarations */
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datasection /* data for variables within the group */
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;
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subgrouplist: /*empty*/ | subgrouplist namedgroup;
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namedgroup: GROUP ident '{'
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{
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Symbol* id = $2;
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markcdf4("Group specification");
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if(creategroup(id) == NULL)
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yyerror("duplicate group declaration within parent group for %s",
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id->name);
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}
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groupbody
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subgrouplist
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{listpop(groupstack);}
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'}'
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attrdecllist
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;
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typesection: /* empty */
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| TYPES {}
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| TYPES typedecls
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{markcdf4("Type specification");}
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;
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typedecls: type_or_attr_decl | typedecls type_or_attr_decl ;
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typename: ident
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{ /* Use when defining a type */
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$1->objectclass = NC_TYPE;
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if(dupobjectcheck(NC_TYPE,$1))
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yyerror("duplicate type declaration for %s",
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$1->name);
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listpush(typdefs,(void*)$1);
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}
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;
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type_or_attr_decl: typedecl {} | attrdecl ';' {} ;
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typedecl:
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enumdecl optsemicolon
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| compounddecl optsemicolon
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| vlendecl optsemicolon
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| opaquedecl optsemicolon
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;
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optsemicolon: /*empty*/ | ';' ;
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enumdecl: primtype ENUM typename
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'{' enumidlist '}'
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{
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int i;
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addtogroup($3); /* sets prefix*/
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$3->objectclass=NC_TYPE;
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$3->subclass=NC_ENUM;
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$3->typ.basetype=$1;
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$3->typ.size = $1->typ.size;
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$3->typ.alignment = $1->typ.alignment;
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stackbase=$5;
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stacklen=listlength(stack);
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$3->subnodes = listnew();
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/* Variety of field fixups*/
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/* 1. add in the enum values*/
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/* 2. make this type be their container*/
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/* 3. make constant names visible in the group*/
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/* 4. set field basetype to be same as enum basetype*/
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for(i=stackbase;i<stacklen;i++) {
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Symbol* eid = (Symbol*)listget(stack,i);
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assert(eid->subclass == NC_ECONST);
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addtogroup(eid);
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listpush($3->subnodes,(void*)eid);
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eid->container = $3;
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eid->typ.basetype = $3->typ.basetype;
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}
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listsetlength(stack,stackbase);/* remove stack nodes*/
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}
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;
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enumidlist: enumid
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{$$=listlength(stack); listpush(stack,(void*)$1);}
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| enumidlist ',' enumid
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{
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int i;
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$$=$1;
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/* check for duplicates*/
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stackbase=$1;
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stacklen=listlength(stack);
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for(i=stackbase;i<stacklen;i++) {
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Symbol* elem = (Symbol*)listget(stack,i);
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if(strcmp($3->name,elem->name)==0)
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yyerror("duplicate enum declaration for %s",
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elem->name);
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}
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listpush(stack,(void*)$3);
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}
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;
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enumid: ident '=' constint
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{
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$1->objectclass=NC_TYPE;
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$1->subclass=NC_ECONST;
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$1->typ.econst=$3;
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$$=$1;
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}
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;
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opaquedecl: OPAQUE_ '(' INT_CONST ')' typename
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{
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vercheck(NC_OPAQUE);
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addtogroup($5); /*sets prefix*/
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$5->objectclass=NC_TYPE;
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$5->subclass=NC_OPAQUE;
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$5->typ.typecode=NC_OPAQUE;
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$5->typ.size=int32_val;
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(void)ncaux_class_alignment(NC_OPAQUE,&$5->typ.alignment);
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}
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;
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vlendecl: typeref '(' '*' ')' typename
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{
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Symbol* basetype = $1;
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vercheck(NC_VLEN);
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addtogroup($5); /*sets prefix*/
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$5->objectclass=NC_TYPE;
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$5->subclass=NC_VLEN;
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$5->typ.basetype=basetype;
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$5->typ.typecode=NC_VLEN;
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$5->typ.size=VLENSIZE;
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(void)ncaux_class_alignment(NC_VLEN,&$5->typ.alignment);
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}
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;
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compounddecl: COMPOUND typename '{' fields '}'
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{
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int i,j;
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vercheck(NC_COMPOUND);
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addtogroup($2);
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/* check for duplicate field names*/
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stackbase=$4;
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stacklen=listlength(stack);
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for(i=stackbase;i<stacklen;i++) {
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Symbol* elem1 = (Symbol*)listget(stack,i);
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for(j=i+1;j<stacklen;j++) {
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Symbol* elem2 = (Symbol*)listget(stack,j);
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if(strcmp(elem1->name,elem2->name)==0) {
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yyerror("duplicate field declaration for %s",elem1->name);
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}
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}
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}
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$2->objectclass=NC_TYPE;
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$2->subclass=NC_COMPOUND;
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$2->typ.basetype=NULL;
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$2->typ.typecode=NC_COMPOUND;
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$2->subnodes = listnew();
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/* Add in the fields*/
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for(i=stackbase;i<stacklen;i++) {
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Symbol* fsym = (Symbol*)listget(stack,i);
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fsym->container = $2;
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listpush($2->subnodes,(void*)fsym);
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}
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listsetlength(stack,stackbase);/* remove stack nodes*/
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}
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;
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fields: field ';' {$$=$1;}
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| fields field ';' {$$=$1;}
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;
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field: typeref fieldlist
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{
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int i;
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$$=$2;
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stackbase=$2;
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stacklen=listlength(stack);
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/* process each field in the fieldlist*/
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for(i=stackbase;i<stacklen;i++) {
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Symbol* f = (Symbol*)listget(stack,i);
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f->typ.basetype = $1;
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}
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}
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;
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primtype: CHAR_K { $$ = primsymbols[NC_CHAR]; }
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| BYTE_K { $$ = primsymbols[NC_BYTE]; }
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| SHORT_K { $$ = primsymbols[NC_SHORT]; }
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| INT_K { $$ = primsymbols[NC_INT]; }
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| FLOAT_K { $$ = primsymbols[NC_FLOAT]; }
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| DOUBLE_K{ $$ = primsymbols[NC_DOUBLE]; }
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| UBYTE_K { vercheck(NC_UBYTE); $$ = primsymbols[NC_UBYTE]; }
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| USHORT_K { vercheck(NC_USHORT); $$ = primsymbols[NC_USHORT]; }
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| UINT_K { vercheck(NC_UINT); $$ = primsymbols[NC_UINT]; }
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| INT64_K { vercheck(NC_INT64); $$ = primsymbols[NC_INT64]; }
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| UINT64_K { vercheck(NC_UINT64); $$ = primsymbols[NC_UINT64]; }
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| STRING_K { vercheck(NC_STRING); $$ = primsymbols[NC_STRING]; }
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;
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dimsection: /* empty */
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| DIMENSIONS {}
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| DIMENSIONS dimdecls {}
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;
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dimdecls: dim_or_attr_decl ';'
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| dimdecls dim_or_attr_decl ';'
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;
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dim_or_attr_decl: dimdeclist {} | attrdecl {} ;
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dimdeclist: dimdecl
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| dimdeclist ',' dimdecl
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;
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dimdecl:
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dimd '=' constint
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{
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$1->dim.declsize = (size_t)extractint($3);
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#ifdef GENDEBUG1
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fprintf(stderr,"dimension: %s = %llu\n",$1->name,(unsigned long long)$1->dim.declsize);
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#endif
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reclaimconstant($3);
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}
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| dimd '=' NC_UNLIMITED_K
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{
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$1->dim.declsize = NC_UNLIMITED;
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$1->dim.isunlimited = 1;
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#ifdef GENDEBUG1
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fprintf(stderr,"dimension: %s = UNLIMITED\n",$1->name);
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#endif
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}
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;
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dimd: ident
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{
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$1->objectclass=NC_DIM;
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if(dupobjectcheck(NC_DIM,$1))
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yyerror( "Duplicate dimension declaration for %s",
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$1->name);
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addtogroup($1);
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$$=$1;
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listpush(dimdefs,(void*)$1);
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}
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;
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vasection: /* empty */
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| VARIABLES {}
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| VARIABLES vadecls {}
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;
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vadecls: vadecl_or_attr ';'
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| vadecls vadecl_or_attr ';'
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;
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vadecl_or_attr: vardecl {} | attrdecl {} ;
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|
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vardecl: typeref varlist
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{
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int i;
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stackbase=$2;
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stacklen=listlength(stack);
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/* process each variable in the varlist*/
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for(i=stackbase;i<stacklen;i++) {
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Symbol* sym = (Symbol*)listget(stack,i);
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sym->objectclass = NC_VAR;
|
|
if(dupobjectcheck(NC_VAR,sym)) {
|
|
yyerror("Duplicate variable declaration for %s",
|
|
sym->name);
|
|
} else {
|
|
sym->typ.basetype = $1;
|
|
addtogroup(sym);
|
|
listpush(vardefs,(void*)sym);
|
|
}
|
|
}
|
|
listsetlength(stack,stackbase);/* remove stack nodes*/
|
|
}
|
|
;
|
|
|
|
varlist: varspec
|
|
{$$=listlength(stack);
|
|
listpush(stack,(void*)$1);
|
|
}
|
|
| varlist ',' varspec
|
|
{$$=$1; listpush(stack,(void*)$3);}
|
|
;
|
|
|
|
varspec: varident dimspec
|
|
{
|
|
int i;
|
|
Dimset dimset;
|
|
Symbol* var = $1; /* for debugging */
|
|
stacklen=listlength(stack);
|
|
stackbase=$2;
|
|
count = stacklen - stackbase;
|
|
if(count >= NC_MAX_VAR_DIMS) {
|
|
yyerror("%s has too many dimensions",$1->name);
|
|
count = NC_MAX_VAR_DIMS - 1;
|
|
stacklen = stackbase + count;
|
|
}
|
|
dimset.ndims = count;
|
|
/* extract the actual dimensions*/
|
|
if(dimset.ndims > 0) {
|
|
for(i=0;i<count;i++) {
|
|
Symbol* dsym = (Symbol*)listget(stack,stackbase+i);
|
|
dimset.dimsyms[i] = dsym;
|
|
}
|
|
var->typ.dimset = dimset;
|
|
}
|
|
var->typ.basetype = NULL; /* not yet known*/
|
|
var->objectclass=NC_VAR;
|
|
listsetlength(stack,stackbase);/* remove stack nodes*/
|
|
$$ = var;
|
|
}
|
|
;
|
|
|
|
dimspec: /* empty */ {$$=listlength(stack);}
|
|
| '(' dimlist ')' {$$=$2;}
|
|
;
|
|
|
|
dimlist: dimref {$$=listlength(stack); listpush(stack,(void*)$1);}
|
|
| dimlist ',' dimref
|
|
{$$=$1; listpush(stack,(void*)$3);}
|
|
;
|
|
|
|
dimref: path
|
|
{Symbol* dimsym = $1;
|
|
dimsym->objectclass = NC_DIM;
|
|
/* Find the actual dimension*/
|
|
dimsym = locate(dimsym);
|
|
if(dimsym == NULL) {
|
|
derror("Undefined or forward referenced dimension: %s",$1->name);
|
|
YYABORT;
|
|
}
|
|
$$=dimsym;
|
|
}
|
|
;
|
|
|
|
fieldlist:
|
|
fieldspec
|
|
{$$=listlength(stack);
|
|
listpush(stack,(void*)$1);
|
|
}
|
|
| fieldlist ',' fieldspec
|
|
{$$=$1; listpush(stack,(void*)$3);}
|
|
;
|
|
|
|
fieldspec:
|
|
ident fielddimspec
|
|
{
|
|
int i;
|
|
Dimset dimset;
|
|
stackbase=$2;
|
|
stacklen=listlength(stack);
|
|
count = stacklen - stackbase;
|
|
if(count >= NC_MAX_VAR_DIMS) {
|
|
yyerror("%s has too many dimensions",$1->name);
|
|
count = NC_MAX_VAR_DIMS - 1;
|
|
stacklen = stackbase + count;
|
|
}
|
|
dimset.ndims = count;
|
|
if(count > 0) {
|
|
/* extract the actual dimensions*/
|
|
for(i=0;i<count;i++) {
|
|
Symbol* dsym = (Symbol*)listget(stack,stackbase+i);
|
|
dimset.dimsyms[i] = dsym;
|
|
}
|
|
$1->typ.dimset = dimset;
|
|
}
|
|
$1->typ.basetype = NULL; /* not yet known*/
|
|
$1->objectclass=NC_TYPE;
|
|
$1->subclass=NC_FIELD;
|
|
listsetlength(stack,stackbase);/* remove stack nodes*/
|
|
$$ = $1;
|
|
}
|
|
;
|
|
|
|
fielddimspec: /* empty */ {$$=listlength(stack);}
|
|
| '(' fielddimlist ')' {$$=$2;}
|
|
;
|
|
|
|
fielddimlist:
|
|
fielddim {$$=listlength(stack); listpush(stack,(void*)$1);}
|
|
| fielddimlist ',' fielddim
|
|
{$$=$1; listpush(stack,(void*)$3);}
|
|
;
|
|
|
|
fielddim:
|
|
UINT_CONST
|
|
{ /* Anonymous integer dimension.
|
|
Can only occur in type definitions*/
|
|
char anon[32];
|
|
snprintf(anon, sizeof(anon),"const%u",uint32_val);
|
|
$$ = install(anon);
|
|
$$->objectclass = NC_DIM;
|
|
$$->dim.isconstant = 1;
|
|
$$->dim.declsize = uint32_val;
|
|
}
|
|
| INT_CONST
|
|
{ /* Anonymous integer dimension.
|
|
Can only occur in type definitions*/
|
|
char anon[32];
|
|
if(int32_val <= 0) {
|
|
derror("field dimension must be positive");
|
|
YYABORT;
|
|
}
|
|
snprintf(anon, sizeof(anon),"const%d",int32_val);
|
|
$$ = install(anon);
|
|
$$->objectclass = NC_DIM;
|
|
$$->dim.isconstant = 1;
|
|
$$->dim.declsize = int32_val;
|
|
}
|
|
;
|
|
|
|
|
|
/* Use this when referencing defined objects */
|
|
|
|
varref:
|
|
ambiguous_ref
|
|
{Symbol* vsym = $1;
|
|
if(vsym->objectclass != NC_VAR) {
|
|
derror("Undefined or forward referenced variable: %s",vsym->name);
|
|
YYABORT;
|
|
}
|
|
$$=vsym;
|
|
}
|
|
;
|
|
|
|
typeref:
|
|
ambiguous_ref
|
|
{Symbol* tsym = $1;
|
|
if(tsym->objectclass != NC_TYPE) {
|
|
derror("Undefined or forward referenced type: %s",tsym->name);
|
|
YYABORT;
|
|
}
|
|
$$=tsym;
|
|
}
|
|
;
|
|
|
|
ambiguous_ref:
|
|
path
|
|
{Symbol* tvsym = $1; Symbol* sym;
|
|
/* disambiguate*/
|
|
tvsym->objectclass = NC_VAR;
|
|
sym = locate(tvsym);
|
|
if(sym == NULL) {
|
|
tvsym->objectclass = NC_TYPE;
|
|
sym = locate(tvsym);
|
|
if(tvsym == NULL) {
|
|
derror("Undefined or forward referenced name: %s",$1->name);
|
|
YYABORT;
|
|
} else tvsym = sym;
|
|
} else tvsym = sym;
|
|
if(tvsym == NULL) {
|
|
derror("Undefined name (line %d): %s",$1->lineno,$1->name);
|
|
YYABORT;
|
|
}
|
|
$$=tvsym;
|
|
}
|
|
| primtype {$$=$1;}
|
|
;
|
|
|
|
/* Use this for all attribute decls */
|
|
/* Global vs var-specific will be separated in makeattribute */
|
|
|
|
/* Watch out; this is left recursive */
|
|
attrdecllist: /*empty*/ {} | attrdecl ';' attrdecllist {} ;
|
|
|
|
attrdecl:
|
|
':' _NCPROPS '=' conststring
|
|
{$$ = makespecial(_NCPROPS_FLAG,NULL,NULL,(void*)$4,ISCONST);}
|
|
| ':' _ISNETCDF4 '=' constbool
|
|
{$$ = makespecial(_ISNETCDF4_FLAG,NULL,NULL,(void*)$4,ISCONST);}
|
|
| ':' _SUPERBLOCK '=' constint
|
|
{$$ = makespecial(_SUPERBLOCK_FLAG,NULL,NULL,(void*)$4,ISCONST);}
|
|
| ':' ident '=' datalist
|
|
{ $$=makeattribute($2,NULL,NULL,$4,ATTRGLOBAL);}
|
|
| typeref ambiguous_ref ':' ident '=' datalist
|
|
{Symbol* tsym = $1; Symbol* vsym = $2; Symbol* asym = $4;
|
|
if(vsym->objectclass == NC_VAR) {
|
|
$$=makeattribute(asym,vsym,tsym,$6,ATTRVAR);
|
|
} else {
|
|
derror("Doubly typed attribute: %s",asym->name);
|
|
YYABORT;
|
|
}
|
|
}
|
|
| ambiguous_ref ':' ident '=' datalist
|
|
{Symbol* sym = $1; Symbol* asym = $3;
|
|
if(sym->objectclass == NC_VAR) {
|
|
$$=makeattribute(asym,sym,NULL,$5,ATTRVAR);
|
|
} else if(sym->objectclass == NC_TYPE) {
|
|
$$=makeattribute(asym,NULL,sym,$5,ATTRGLOBAL);
|
|
} else {
|
|
derror("Attribute prefix not a variable or type: %s",asym->name);
|
|
YYABORT;
|
|
}
|
|
}
|
|
| ambiguous_ref ':' _FILLVALUE '=' datalist
|
|
{$$ = makespecial(_FILLVALUE_FLAG,$1,NULL,(void*)$5,ISLIST);}
|
|
| typeref ambiguous_ref ':' _FILLVALUE '=' datalist
|
|
{$$ = makespecial(_FILLVALUE_FLAG,$2,$1,(void*)$6,ISLIST);}
|
|
| ambiguous_ref ':' _STORAGE '=' conststring
|
|
{$$ = makespecial(_STORAGE_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _CHUNKSIZES '=' intlist
|
|
{$$ = makespecial(_CHUNKSIZES_FLAG,$1,NULL,(void*)$5,ISLIST);}
|
|
| ambiguous_ref ':' _FLETCHER32 '=' constbool
|
|
{$$ = makespecial(_FLETCHER32_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _DEFLATELEVEL '=' constint
|
|
{$$ = makespecial(_DEFLATE_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _SHUFFLE '=' constbool
|
|
{$$ = makespecial(_SHUFFLE_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _ENDIANNESS '=' conststring
|
|
{$$ = makespecial(_ENDIAN_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _FILTER '=' conststring
|
|
{$$ = makespecial(_FILTER_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _CODECS '=' conststring
|
|
{$$ = makespecial(_CODECS_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _QUANTIZEBG '=' constint
|
|
{$$ = makespecial(_QUANTIZEBG_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _QUANTIZEGBR '=' constint
|
|
{$$ = makespecial(_QUANTIZEGBR_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _QUANTIZEBR '=' constint
|
|
{$$ = makespecial(_QUANTIZEBR_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ambiguous_ref ':' _NOFILL '=' constbool
|
|
{$$ = makespecial(_NOFILL_FLAG,$1,NULL,(void*)$5,ISCONST);}
|
|
| ':' _FORMAT '=' conststring
|
|
{$$ = makespecial(_FORMAT_FLAG,NULL,NULL,(void*)$4,ISCONST);}
|
|
;
|
|
|
|
path:
|
|
ident
|
|
{
|
|
$$=$1;
|
|
$1->ref.is_ref=1;
|
|
$1->is_prefixed=0;
|
|
setpathcurrent($1);
|
|
}
|
|
| PATH
|
|
{
|
|
$$=$1;
|
|
$1->ref.is_ref=1;
|
|
$1->is_prefixed=1;
|
|
/* path is set in ncgen.l*/
|
|
}
|
|
;
|
|
|
|
datasection: /* empty */
|
|
| DATA {}
|
|
| DATA datadecls {}
|
|
;
|
|
|
|
datadecls: datadecl ';'
|
|
| datadecls datadecl ';'
|
|
;
|
|
|
|
datadecl: varref '=' datalist
|
|
{$1->data = $3;}
|
|
;
|
|
datalist:
|
|
datalist0 {$$ = $1;}
|
|
| datalist1 {$$ = $1;}
|
|
;
|
|
|
|
datalist0:
|
|
/*empty*/ {$$ = builddatalist(0);}
|
|
;
|
|
|
|
datalist1: /* Must have at least 1 element */
|
|
dataitem {$$ = const2list($1);}
|
|
| datalist ',' dataitem
|
|
{dlappend($1,($3)); $$=$1; }
|
|
;
|
|
|
|
dataitem:
|
|
constdata {$$=$1;}
|
|
| '{' datalist '}' {$$=builddatasublist($2);}
|
|
;
|
|
|
|
constdata:
|
|
simpleconstant {$$=$1;}
|
|
| OPAQUESTRING {$$=makeconstdata(NC_OPAQUE);}
|
|
| FILLMARKER {$$=makeconstdata(NC_FILLVALUE);}
|
|
| NIL {$$=makeconstdata(NC_NIL);}
|
|
| econstref {$$=$1;}
|
|
| function
|
|
;
|
|
|
|
econstref:
|
|
path {$$ = makeenumconstref($1);}
|
|
;
|
|
|
|
function:
|
|
ident '(' arglist ')' {$$=evaluate($1,$3);}
|
|
;
|
|
|
|
arglist:
|
|
simpleconstant
|
|
{$$ = const2list($1);}
|
|
| arglist ',' simpleconstant
|
|
{dlappend($1,($3)); $$=$1;}
|
|
;
|
|
|
|
simpleconstant:
|
|
CHAR_CONST {$$=makeconstdata(NC_CHAR);} /* never used apparently*/
|
|
| BYTE_CONST {$$=makeconstdata(NC_BYTE);}
|
|
| SHORT_CONST {$$=makeconstdata(NC_SHORT);}
|
|
| INT_CONST {$$=makeconstdata(NC_INT);}
|
|
| INT64_CONST {$$=makeconstdata(NC_INT64);}
|
|
| UBYTE_CONST {$$=makeconstdata(NC_UBYTE);}
|
|
| USHORT_CONST {$$=makeconstdata(NC_USHORT);}
|
|
| UINT_CONST {$$=makeconstdata(NC_UINT);}
|
|
| UINT64_CONST {$$=makeconstdata(NC_UINT64);}
|
|
| FLOAT_CONST {$$=makeconstdata(NC_FLOAT);}
|
|
| DOUBLE_CONST {$$=makeconstdata(NC_DOUBLE);}
|
|
| TERMSTRING {$$=makeconstdata(NC_STRING);}
|
|
;
|
|
|
|
intlist:
|
|
constint {$$ = const2list($1);}
|
|
| intlist ',' constint {$$=$1; dlappend($1,($3));}
|
|
;
|
|
|
|
constint:
|
|
INT_CONST
|
|
{$$=makeconstdata(NC_INT);}
|
|
| UINT_CONST
|
|
{$$=makeconstdata(NC_UINT);}
|
|
| INT64_CONST
|
|
{$$=makeconstdata(NC_INT64);}
|
|
| UINT64_CONST
|
|
{$$=makeconstdata(NC_UINT64);}
|
|
;
|
|
|
|
conststring:
|
|
TERMSTRING {$$=makeconstdata(NC_STRING);}
|
|
;
|
|
|
|
constbool:
|
|
conststring {$$=$1;}
|
|
| constint {$$=$1;}
|
|
|
|
/* End OF RULES */
|
|
|
|
|
|
/* Push all idents thru these*/
|
|
|
|
varident:
|
|
IDENT {$$=$1;}
|
|
| DATA {$$=identkeyword($1);}
|
|
;
|
|
|
|
ident:
|
|
IDENT {$$=$1;}
|
|
;
|
|
|
|
%%
|
|
|
|
#ifndef NO_STDARG
|
|
static void
|
|
yyerror(const char *fmt, ...)
|
|
#else
|
|
static void
|
|
yyerror(fmt,va_alist) const char* fmt; va_dcl
|
|
#endif
|
|
{
|
|
va_list argv;
|
|
va_start(argv,fmt);
|
|
(void)fprintf(stderr,"%s: %s line %d: ", progname, cdlname, lineno);
|
|
vderror(fmt,argv);
|
|
va_end(argv);
|
|
}
|
|
|
|
/* undefine yywrap macro, in case we are using bison instead of yacc */
|
|
#ifdef yywrap
|
|
#undef yywrap
|
|
#endif
|
|
|
|
static int
|
|
ncgwrap(void) /* returns 1 on EOF if no more input */
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/* get lexical input routine generated by lex */
|
|
#include "ncgenl.c"
|
|
|
|
/* Really should init our data within this file */
|
|
void
|
|
parse_init(void)
|
|
{
|
|
int i;
|
|
opaqueid = 0;
|
|
arrayuid = 0;
|
|
symlist = listnew();
|
|
stack = listnew();
|
|
groupstack = listnew();
|
|
consttype = NC_NAT;
|
|
grpdefs = listnew();
|
|
dimdefs = listnew();
|
|
attdefs = listnew();
|
|
gattdefs = listnew();
|
|
xattdefs = listnew();
|
|
typdefs = listnew();
|
|
vardefs = listnew();
|
|
tmp = listnew();
|
|
/* Create the primitive types */
|
|
for(i=NC_NAT+1;i<=NC_STRING;i++) {
|
|
primsymbols[i] = makeprimitivetype(i);
|
|
}
|
|
lex_init();
|
|
}
|
|
|
|
static Symbol*
|
|
makeprimitivetype(nc_type nctype)
|
|
{
|
|
Symbol* sym = install(primtypenames[nctype]);
|
|
sym->objectclass=NC_TYPE;
|
|
sym->subclass=NC_PRIM;
|
|
sym->nc_id = nctype;
|
|
sym->typ.typecode = nctype;
|
|
sym->typ.size = ncsize(nctype);
|
|
sym->typ.nelems = 1;
|
|
(void)ncaux_class_alignment(nctype,&sym->typ.alignment);
|
|
/* Make the basetype circular so we can always ask for it */
|
|
sym->typ.basetype = sym;
|
|
sym->prefix = listnew();
|
|
return sym;
|
|
}
|
|
|
|
/* Symbol table operations for ncgen tool */
|
|
/* install sname in symbol table even if it is already there */
|
|
Symbol*
|
|
install(const char *sname)
|
|
{
|
|
return installin(sname,currentgroup());
|
|
}
|
|
|
|
Symbol*
|
|
installin(const char *sname, Symbol* grp)
|
|
{
|
|
Symbol* sp;
|
|
sp = (Symbol*) ecalloc (sizeof (struct Symbol));
|
|
sp->name = nulldup(sname);
|
|
sp->lineno = lineno;
|
|
sp->location = grp;
|
|
sp->container = grp;
|
|
listpush(symlist,sp);
|
|
return sp;
|
|
}
|
|
|
|
static Symbol*
|
|
currentgroup(void)
|
|
{
|
|
if(listlength(groupstack) == 0) return rootgroup;
|
|
return (Symbol*)listtop(groupstack);
|
|
}
|
|
|
|
static Symbol*
|
|
createrootgroup(const char* dataset)
|
|
{
|
|
Symbol* gsym = install(dataset);
|
|
gsym->objectclass = NC_GRP;
|
|
gsym->container = NULL;
|
|
gsym->subnodes = listnew();
|
|
gsym->grp.is_root = 1;
|
|
gsym->prefix = listnew();
|
|
listpush(grpdefs,(void*)gsym);
|
|
rootgroup = gsym;
|
|
return gsym;
|
|
}
|
|
|
|
static Symbol*
|
|
creategroup(Symbol * gsym)
|
|
{
|
|
/* See if this group already exists in currentgroup */
|
|
gsym->objectclass = NC_GRP;
|
|
if(dupobjectcheck(NC_GRP,gsym)) {
|
|
derror("Duplicate group name in same scope: %s",gsym->name);
|
|
return NULL;
|
|
}
|
|
addtogroup(gsym);
|
|
gsym->subnodes = listnew();
|
|
listpush(groupstack,(void*)gsym);
|
|
listpush(grpdefs,(void*)gsym);
|
|
return gsym;
|
|
}
|
|
|
|
static NCConstant*
|
|
makeconstdata(nc_type nctype)
|
|
{
|
|
NCConstant* con = nullconst();
|
|
consttype = nctype;
|
|
con->nctype = nctype;
|
|
con->lineno = lineno;
|
|
con->filled = 0;
|
|
switch (nctype) {
|
|
case NC_CHAR: con->value.charv = char_val; break;
|
|
case NC_BYTE: con->value.int8v = byte_val; break;
|
|
case NC_SHORT: con->value.int16v = int16_val; break;
|
|
case NC_INT: con->value.int32v = int32_val; break;
|
|
case NC_FLOAT:
|
|
con->value.floatv = float_val;
|
|
break;
|
|
case NC_DOUBLE:
|
|
con->value.doublev = double_val;
|
|
break;
|
|
case NC_STRING: { /* convert to a set of chars*/
|
|
size_t len;
|
|
len = bbLength(lextext);
|
|
con->value.stringv.len = len;
|
|
con->value.stringv.stringv = bbExtract(lextext);
|
|
}
|
|
break;
|
|
|
|
/* Allow these constants even in netcdf-3 */
|
|
case NC_UBYTE: con->value.uint8v = ubyte_val; break;
|
|
case NC_USHORT: con->value.uint16v = uint16_val; break;
|
|
case NC_UINT: con->value.uint32v = uint32_val; break;
|
|
case NC_INT64: con->value.int64v = int64_val; break;
|
|
case NC_UINT64: con->value.uint64v = uint64_val; break;
|
|
|
|
#ifdef USE_NETCDF4
|
|
case NC_OPAQUE: {
|
|
char* s;
|
|
int len;
|
|
len = bbLength(lextext);
|
|
s = (char*)ecalloc(len+1);
|
|
strncpy(s,bbContents(lextext),len);
|
|
s[len] = '\0';
|
|
con->value.opaquev.stringv = s;
|
|
con->value.opaquev.len = len;
|
|
} break;
|
|
|
|
case NC_NIL:
|
|
break; /* no associated value*/
|
|
#endif
|
|
|
|
case NC_FILLVALUE:
|
|
break; /* no associated value*/
|
|
|
|
default:
|
|
yyerror("Data constant: unexpected NC type: %s",
|
|
nctypename(nctype));
|
|
con->value.stringv.stringv = NULL;
|
|
con->value.stringv.len = 0;
|
|
}
|
|
return con;
|
|
}
|
|
|
|
static NCConstant*
|
|
makeenumconstref(Symbol* refsym)
|
|
{
|
|
NCConstant* con = nullconst();
|
|
|
|
markcdf4("Enum type");
|
|
consttype = NC_ENUM;
|
|
con->nctype = NC_ECONST;
|
|
con->lineno = lineno;
|
|
con->filled = 0;
|
|
refsym->objectclass = NC_TYPE;
|
|
refsym->subclass = NC_ECONST;
|
|
con->value.enumv = refsym;
|
|
return con;
|
|
}
|
|
|
|
static void
|
|
addtogroup(Symbol* sym)
|
|
{
|
|
Symbol* grp = currentgroup();
|
|
sym->container = grp;
|
|
listpush(grp->subnodes,(void*)sym);
|
|
setpathcurrent(sym);
|
|
}
|
|
|
|
/* Check for duplicate name of given type within current group*/
|
|
static int
|
|
dupobjectcheck(nc_class objectclass, Symbol* pattern)
|
|
{
|
|
int i;
|
|
Symbol* grp;
|
|
if(pattern == NULL) return 0;
|
|
grp = pattern->container;
|
|
if(grp == NULL || grp->subnodes == NULL) return 0;
|
|
for(i=0;i<listlength(grp->subnodes);i++) {
|
|
Symbol* sym = (Symbol*)listget(grp->subnodes,i);
|
|
if(!sym->ref.is_ref && sym->objectclass == objectclass
|
|
&& strcmp(sym->name,pattern->name)==0) return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
setpathcurrent(Symbol* sym)
|
|
{
|
|
sym->is_prefixed = 0;
|
|
sym->prefix = prefixdup(groupstack);
|
|
}
|
|
|
|
/* Convert an nc_type code to the corresponding Symbol*/
|
|
Symbol*
|
|
basetypefor(nc_type nctype)
|
|
{
|
|
return primsymbols[nctype];
|
|
}
|
|
|
|
static int
|
|
truefalse(NCConstant* con, int tag)
|
|
{
|
|
if(con->nctype == NC_STRING) {
|
|
char* sdata = con->value.stringv.stringv;
|
|
if(strncmp(sdata,"false",NC_MAX_NAME) == 0
|
|
|| strncmp(sdata,"0",NC_MAX_NAME) == 0)
|
|
return 0;
|
|
else if(strncmp(sdata,"true",NC_MAX_NAME) == 0
|
|
|| strncmp(sdata,"1",NC_MAX_NAME) == 0)
|
|
return 1;
|
|
else goto fail;
|
|
} else if(con->value.int32v < 0 || con->value.int32v > 1)
|
|
goto fail;
|
|
return con->value.int32v;
|
|
|
|
fail:
|
|
derror("%s: illegal value",specialname(tag));
|
|
return 0;
|
|
}
|
|
|
|
/* Since this may be affected by the _Format attribute, which
|
|
may come last, capture all the special info and sort it out
|
|
in semantics.
|
|
*/
|
|
static Symbol*
|
|
makespecial(int tag, Symbol* vsym, Symbol* tsym, void* data, int isconst)
|
|
{
|
|
Symbol* attr = NULL;
|
|
Datalist* list = NULL;
|
|
NCConstant* con = NULL;
|
|
NCConstant* tmp = NULL;
|
|
int tf = 0;
|
|
char* sdata = NULL;
|
|
int idata = -1;
|
|
|
|
if((GLOBAL_SPECIAL & tag) != 0) {
|
|
if(vsym != NULL) {
|
|
derror("_Format: must be global attribute");
|
|
vsym = NULL;
|
|
}
|
|
} else {
|
|
if(vsym == NULL) {
|
|
derror("%s: must have non-NULL vsym", specialname(tag));
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if(tag != _FILLVALUE_FLAG && tag != _FORMAT_FLAG)
|
|
/*Main.*/specials_flag++;
|
|
|
|
if(isconst)
|
|
con = (NCConstant*)data;
|
|
else
|
|
list = (Datalist*)data;
|
|
|
|
switch (tag) {
|
|
case _FLETCHER32_FLAG:
|
|
case _SHUFFLE_FLAG:
|
|
case _ISNETCDF4_FLAG:
|
|
case _NOFILL_FLAG:
|
|
tmp = nullconst();
|
|
tmp->nctype = (con->nctype == NC_STRING?NC_STRING:NC_INT);
|
|
convert1(con,tmp);
|
|
tf = truefalse(tmp,tag);
|
|
reclaimconstant(tmp);
|
|
break;
|
|
case _FORMAT_FLAG:
|
|
case _STORAGE_FLAG:
|
|
case _NCPROPS_FLAG:
|
|
case _ENDIAN_FLAG:
|
|
case _FILTER_FLAG:
|
|
case _CODECS_FLAG:
|
|
tmp = nullconst();
|
|
tmp->nctype = NC_STRING;
|
|
convert1(con,tmp);
|
|
if(tmp->nctype == NC_STRING) {
|
|
sdata = tmp->value.stringv.stringv;
|
|
tmp->value.stringv.stringv = NULL;
|
|
tmp->value.stringv.len = 0;
|
|
} else
|
|
derror("%s: illegal value",specialname(tag));
|
|
reclaimconstant(tmp);
|
|
break;
|
|
case _SUPERBLOCK_FLAG:
|
|
case _DEFLATE_FLAG:
|
|
case _QUANTIZEBG_FLAG:
|
|
case _QUANTIZEGBR_FLAG:
|
|
case _QUANTIZEBR_FLAG:
|
|
tmp = nullconst();
|
|
tmp->nctype = NC_INT;
|
|
convert1(con,tmp);
|
|
if(tmp->nctype == NC_INT)
|
|
idata = tmp->value.int32v;
|
|
else
|
|
derror("%s: illegal value",specialname(tag));
|
|
reclaimconstant(tmp);
|
|
break;
|
|
case _CHUNKSIZES_FLAG:
|
|
case _FILLVALUE_FLAG:
|
|
/* Handle below */
|
|
break;
|
|
default: PANIC1("unexpected special tag: %d",tag);
|
|
}
|
|
|
|
if(tag == _FORMAT_FLAG) {
|
|
/* Watch out: this is a global attribute */
|
|
struct Kvalues* kvalue;
|
|
int found = 0;
|
|
/* Use the table in main.c */
|
|
for(kvalue = legalkinds; kvalue->name; kvalue++) {
|
|
if(sdata) {
|
|
if(strcmp(sdata, kvalue->name) == 0) {
|
|
globalspecials._Format = kvalue->k_flag;
|
|
/*Main.*/format_attribute = 1;
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if(!found)
|
|
derror("_Format: illegal value: %s",sdata);
|
|
} else if((GLOBAL_SPECIAL & tag) != 0) {
|
|
if(tag == _ISNETCDF4_FLAG)
|
|
globalspecials._IsNetcdf4 = tf;
|
|
else if(tag == _SUPERBLOCK_FLAG)
|
|
globalspecials._Superblock = idata;
|
|
else if(tag == _NCPROPS_FLAG) {
|
|
globalspecials._NCProperties = sdata;
|
|
sdata = NULL;
|
|
}
|
|
} else {
|
|
Specialdata* special;
|
|
/* Set up special info */
|
|
special = &vsym->var.special;
|
|
if(tag == _FILLVALUE_FLAG) {
|
|
/* fillvalue must be a single value*/
|
|
if(!isconst && datalistlen(list) != 1)
|
|
derror("_FillValue: must be a single (possibly compound) value",
|
|
vsym->name);
|
|
if(isconst) {
|
|
list = const2list(con);
|
|
con = NULL;
|
|
}
|
|
/* check that the attribute value contains no fill values*/
|
|
if(containsfills(list)) {
|
|
derror("Attribute data may not contain fill values (i.e. _ )");
|
|
}
|
|
/* _FillValue is also a real attribute*/
|
|
if(vsym->objectclass != NC_VAR) {
|
|
derror("_FillValue attribute not associated with variable: %s",vsym->name);
|
|
}
|
|
if(tsym == NULL) tsym = vsym->typ.basetype;
|
|
#if 0 /* No longer require matching types */
|
|
else if(vsym->typ.basetype != tsym) {
|
|
derror("_FillValue attribute type does not match variable type: %s",vsym->name);
|
|
}
|
|
#endif
|
|
special->_Fillvalue = clonedatalist(list);
|
|
/* Create the corresponding attribute */
|
|
attr = makeattribute(install("_FillValue"),vsym,tsym,list,ATTRVAR);
|
|
list = NULL;
|
|
} else switch (tag) {
|
|
/* These will be output as attributes later */
|
|
case _STORAGE_FLAG:
|
|
if(!sdata)
|
|
derror("_Storage: illegal NULL value");
|
|
else if(strcmp(sdata,"contiguous") == 0)
|
|
special->_Storage = NC_CONTIGUOUS;
|
|
else if(strcmp(sdata,"compact") == 0)
|
|
special->_Storage = NC_COMPACT;
|
|
else if(strcmp(sdata,"chunked") == 0)
|
|
special->_Storage = NC_CHUNKED;
|
|
else
|
|
derror("_Storage: illegal value: %s",sdata);
|
|
special->flags |= _STORAGE_FLAG;
|
|
break;
|
|
case _FLETCHER32_FLAG:
|
|
special->_Fletcher32 = tf;
|
|
special->flags |= _FLETCHER32_FLAG;
|
|
break;
|
|
case _DEFLATE_FLAG:
|
|
special->_DeflateLevel = idata;
|
|
special->flags |= _DEFLATE_FLAG;
|
|
break;
|
|
case _QUANTIZEBG_FLAG:
|
|
special->_Quantizer = NC_QUANTIZE_BITGROOM;
|
|
special->_NSD = idata;
|
|
special->flags |= _QUANTIZEBG_FLAG;
|
|
break;
|
|
case _QUANTIZEGBR_FLAG:
|
|
special->_Quantizer = NC_QUANTIZE_GRANULARBR;
|
|
special->_NSD = idata;
|
|
special->flags |= _QUANTIZEGBR_FLAG;
|
|
break;
|
|
case _QUANTIZEBR_FLAG:
|
|
special->_Quantizer = NC_QUANTIZE_BITROUND;
|
|
special->_NSD = idata;
|
|
special->flags |= _QUANTIZEBR_FLAG;
|
|
break;
|
|
case _SHUFFLE_FLAG:
|
|
special->_Shuffle = tf;
|
|
special->flags |= _SHUFFLE_FLAG;
|
|
break;
|
|
case _ENDIAN_FLAG:
|
|
if(!sdata)
|
|
derror("_Endianness: illegal NULL value");
|
|
else if(strcmp(sdata,"little") == 0)
|
|
special->_Endianness = 1;
|
|
else if(strcmp(sdata,"big") == 0)
|
|
special->_Endianness = 2;
|
|
else
|
|
derror("_Endianness: illegal value: %s",sdata);
|
|
special->flags |= _ENDIAN_FLAG;
|
|
break;
|
|
case _NOFILL_FLAG:
|
|
special->_Fill = (1 - tf); /* negate */
|
|
special->flags |= _NOFILL_FLAG;
|
|
break;
|
|
case _CHUNKSIZES_FLAG: {
|
|
int i;
|
|
list = (isconst ? const2list(con) : list);
|
|
special->nchunks = list->length;
|
|
special->_ChunkSizes = (size_t*)ecalloc(sizeof(size_t)*special->nchunks);
|
|
for(i=0;i<special->nchunks;i++) {
|
|
tmp = nullconst();
|
|
tmp->nctype = NC_INT;
|
|
convert1(list->data[i],tmp);
|
|
if(tmp->nctype == NC_INT) {
|
|
special->_ChunkSizes[i] = (size_t)tmp->value.int32v;
|
|
} else {
|
|
efree(special->_ChunkSizes);
|
|
derror("%s: illegal value",specialname(tag));
|
|
}
|
|
reclaimconstant(tmp);
|
|
}
|
|
special->flags |= _CHUNKSIZES_FLAG;
|
|
/* Chunksizes => storage == chunked */
|
|
special->flags |= _STORAGE_FLAG;
|
|
special->_Storage = NC_CHUNKED;
|
|
} break;
|
|
case _FILTER_FLAG:
|
|
#ifdef USE_NETCDF4
|
|
/* Parse the filter spec */
|
|
if(parsefilterflag(sdata,special) == NC_NOERR)
|
|
special->flags |= _FILTER_FLAG;
|
|
else {
|
|
derror("_Filter: unparsable filter spec: %s",sdata);
|
|
}
|
|
#else
|
|
derror("%s: the filter attribute requires netcdf-4 to be enabled",specialname(tag));
|
|
#endif
|
|
break;
|
|
case _CODECS_FLAG:
|
|
#ifdef USE_NETCDF4
|
|
/* Parse the codec spec */
|
|
if(parsecodecsflag(sdata,special) == NC_NOERR)
|
|
special->flags |= _CODECS_FLAG;
|
|
else {
|
|
derror("_Codecs: unparsable codec spec: %s",sdata);
|
|
}
|
|
#else
|
|
derror("%s: the _Codecs attribute requires netcdf-4 to be enabled",specialname(tag));
|
|
#endif
|
|
break;
|
|
default: PANIC1("makespecial: illegal token: %d",tag);
|
|
}
|
|
}
|
|
if(sdata) efree(sdata);
|
|
if(con) reclaimconstant(con);
|
|
if(list) reclaimdatalist(list);
|
|
return attr;
|
|
}
|
|
|
|
static Symbol*
|
|
makeattribute(Symbol* asym,
|
|
Symbol* vsym,
|
|
Symbol* tsym,
|
|
Datalist* data,
|
|
Attrkind kind) /* global var or unknown*/
|
|
{
|
|
asym->objectclass = NC_ATT;
|
|
asym->data = data;
|
|
switch (kind) {
|
|
case ATTRVAR:
|
|
asym->att.var = vsym;
|
|
asym->typ.basetype = tsym;
|
|
listpush(attdefs,(void*)asym);
|
|
addtogroup(asym);
|
|
break;
|
|
case ATTRGLOBAL:
|
|
asym->att.var = NULL; /* NULL => NC_GLOBAL*/
|
|
asym->typ.basetype = tsym;
|
|
listpush(gattdefs,(void*)asym);
|
|
addtogroup(asym);
|
|
break;
|
|
default: PANIC1("unexpected attribute type: %d",kind);
|
|
}
|
|
/* finally; check that the attribute value contains no fill values*/
|
|
if(containsfills(data)) {
|
|
derror("Attribute data may not contain fill values (i.e. _ ): %s",asym->name);
|
|
}
|
|
return asym;
|
|
}
|
|
|
|
static long long
|
|
extractint(NCConstant* con)
|
|
{
|
|
switch (con->nctype) {
|
|
case NC_BYTE: return (long long)(con->value.int8v);
|
|
case NC_SHORT: return (long long)(con->value.int16v);
|
|
case NC_INT: return (long long)(con->value.int32v);
|
|
case NC_UBYTE: return (long long)(con->value.uint8v);
|
|
case NC_USHORT: return (long long)(con->value.uint16v);
|
|
case NC_UINT: return (long long)(con->value.uint32v);
|
|
case NC_INT64: return (long long)(con->value.int64v);
|
|
default:
|
|
derror("Not a signed integer type: %d",con->nctype);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
containsfills(Datalist* list)
|
|
{
|
|
if(list != NULL) {
|
|
int i;
|
|
NCConstant** cons = list->data;
|
|
for(i=0;i<list->length;i++) {
|
|
if(cons[i]->nctype == NC_COMPOUND) {
|
|
if(containsfills(cons[i]->value.compoundv)) return 1;
|
|
} else if(cons[i]->nctype == NC_FILLVALUE)
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
Try to infer the file type from the
|
|
kinds of constructs used in the cdl file.
|
|
*/
|
|
static void
|
|
vercheck(int tid)
|
|
{
|
|
switch (tid) {
|
|
case NC_UBYTE: markcdf4("netCDF4/5 type: UBYTE"); break;
|
|
case NC_USHORT: markcdf4("netCDF4/5 type: USHORT"); break;
|
|
case NC_UINT: markcdf4("netCDF4/5 type: UINT"); break;
|
|
case NC_INT64: markcdf4("netCDF4/5 type: INT64"); break;
|
|
case NC_UINT64: markcdf4("netCDF4/5 type: UINT64"); break;
|
|
case NC_STRING: markcdf4("netCDF4 type: STRING"); break;
|
|
case NC_VLEN: markcdf4("netCDF4 type: VLEN"); break;
|
|
case NC_OPAQUE: markcdf4("netCDF4 type: OPAQUE"); break;
|
|
case NC_ENUM: markcdf4("netCDF4 type: ENUM"); break;
|
|
case NC_COMPOUND: markcdf4("netCDF4 type: COMPOUND"); break;
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
const char*
|
|
specialname(int tag)
|
|
{
|
|
struct Specialtoken* spp = specials;
|
|
for(;spp->name;spp++) {
|
|
if(spp->tag == tag)
|
|
return spp->name;
|
|
}
|
|
return "<unknown>";
|
|
}
|
|
|
|
#ifdef USE_NETCDF4
|
|
/*
|
|
Parse a filter spec string and store it in special
|
|
*/
|
|
static int
|
|
parsefilterflag(const char* sdata, Specialdata* special)
|
|
{
|
|
int stat = NC_NOERR;
|
|
|
|
if(sdata == NULL || strlen(sdata) == 0) return NC_EINVAL;
|
|
|
|
stat = ncaux_h5filterspec_parselist(sdata, NULL, &special->nfilters, &special->_Filters);
|
|
if(stat)
|
|
derror("Malformed filter spec: %s",sdata);
|
|
#ifdef GENDEBUG1
|
|
printfilters(special->nfilters,special->_Filters);
|
|
#endif
|
|
return stat;
|
|
}
|
|
|
|
/*
|
|
Store a Codecs spec string in special
|
|
*/
|
|
static int
|
|
parsecodecsflag(const char* sdata, Specialdata* special)
|
|
{
|
|
int stat = NC_NOERR;
|
|
|
|
if(sdata == NULL || strlen(sdata) == 0) return NC_EINVAL;
|
|
|
|
if((special->_Codecs = strdup(sdata))==NULL)
|
|
return NC_ENOMEM;
|
|
return stat;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
Since the arguments are all simple constants,
|
|
we can evaluate the function immediately
|
|
and return its value.
|
|
Note that currently, only a single value can
|
|
be returned.
|
|
*/
|
|
|
|
static NCConstant*
|
|
evaluate(Symbol* fcn, Datalist* arglist)
|
|
{
|
|
NCConstant* result = nullconst();
|
|
|
|
/* prepare the result */
|
|
result->lineno = fcn->lineno;
|
|
|
|
if(strcasecmp(fcn->name,"time") == 0) {
|
|
char* timekind = NULL;
|
|
char* timevalue = NULL;
|
|
result->nctype = NC_DOUBLE;
|
|
result->value.doublev = 0;
|
|
/* int time([string],string) */
|
|
switch (arglist->length) {
|
|
case 2:
|
|
if(arglist->data[1]->nctype != NC_STRING) {
|
|
derror("Expected function signature: time([string,]string)");
|
|
goto done;
|
|
}
|
|
/* fall thru */
|
|
case 1:
|
|
if(arglist->data[0]->nctype != NC_STRING) {
|
|
derror("Expected function signature: time([string,]string)");
|
|
goto done;
|
|
}
|
|
break;
|
|
case 0:
|
|
default:
|
|
derror("Expected function signature: time([string,]string)");
|
|
goto done;
|
|
}
|
|
if(arglist->length == 2) {
|
|
timekind = arglist->data[0]->value.stringv.stringv;
|
|
timevalue = arglist->data[1]->value.stringv.stringv;
|
|
} else
|
|
timevalue = arglist->data[0]->value.stringv.stringv;
|
|
if(timekind == NULL) { /* use cd time as the default */
|
|
cdCompTime comptime;
|
|
CdTime cdtime;
|
|
cdCalenType timetype = cdStandard;
|
|
cdChar2Comp(timetype,timevalue,&comptime);
|
|
/* convert comptime to cdTime */
|
|
cdtime.year = comptime.year;
|
|
cdtime.month = comptime.month;
|
|
cdtime.day = comptime.day;
|
|
cdtime.hour = comptime.hour;
|
|
cdtime.baseYear = 1970;
|
|
cdtime.timeType = CdChron;
|
|
/* convert to double value */
|
|
Cdh2e(&cdtime,&result->value.doublev);
|
|
} else {
|
|
derror("Time conversion '%s' not supported",timekind);
|
|
goto done;
|
|
}
|
|
} else { /* Unknown function */
|
|
derror("Unknown function name: %s",fcn->name);
|
|
goto done;
|
|
}
|
|
|
|
done:
|
|
return result;
|
|
}
|
|
|
|
#ifdef GENDEBUG1
|
|
static void
|
|
printfilters(int nfilters, NC_H5_Filterspec** filters)
|
|
{
|
|
int i;
|
|
fprintf(stderr,"xxx: nfilters=%lu: ",(unsigned long)nfilters);
|
|
for(i=0;i<nfilters;i++) {
|
|
int k;
|
|
NC_H5_Filterspec* sp = filters[i];
|
|
fprintf(stderr,"{");
|
|
fprintf(stderr,"filterid=%lu nparams=%lu params=%p",
|
|
(unsigned long)sp->filterid,(unsigned long)sp->nparams,sp->params);
|
|
if(sp->nparams > 0 && sp->params != NULL) {
|
|
fprintf(stderr," params={");
|
|
for(k=0;k<sp->nparams;k++) {
|
|
if(i==0) fprintf(stderr,",");
|
|
fprintf(stderr,"%u",sp->params[i]);
|
|
}
|
|
fprintf(stderr,"}");
|
|
} else
|
|
fprintf(stderr,"params=NULL");
|
|
fprintf(stderr,"}");
|
|
}
|
|
fprintf(stderr,"\n");
|
|
fflush(stderr);
|
|
}
|
|
#endif
|