mirror of
https://github.com/Unidata/netcdf-c.git
synced 2024-11-21 03:13:42 +08:00
c99058741a
Ncgen is unable to resolve ambiguous references to an enum constant when two different enums have same econstant name. Solved by allowing more specific forms for econstant references. 1. /.../enumname.enumconstname 2. enumname.enumconstname 3. enumconstname Case 1 is resolved by using the econstant in the specific enum definition. If none is found, an error is reported. Case 2 is resolved by 1. finding an enclosing group with an enum definition with the specified name and containing the specified econstant. If there are more than one, then an error is reported 2. finding all enum definitions in the dataset that have the specified enum name and contain the specified econstant. If more than one is found, then an error is reported. If the above two methods fail, then report an error. Case 3 is similar to case 2, but all enums, irrespective of name are used if they contains the specified enum constant. The ref_tst_econst.cdl test in ncdump is causing ncdump to fail. So there may be yet some problem.
544 lines
14 KiB
C
544 lines
14 KiB
C
/*********************************************************************
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* Copyright 1993, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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* $Header: /upc/share/CVS/netcdf-3/ncgen/gencml.c,v 1.5 2010/04/04 19:39:46 dmh Exp $
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*********************************************************************/
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#include "includes.h"
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#include <ctype.h> /* for isprint() */
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#ifdef ENABLE_CML
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#undef TRACE
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extern List* vlenconstants; /* List<Constant*>;*/
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/* Forward */
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/*
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static const char* ncstype(nc_type);
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static const char* nctype(nc_type);
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static const char* ncctype(nc_type);
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static const char* groupncid(Symbol*);
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static const char* typencid(Symbol*);
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static const char* varncid(Symbol*);
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static const char* dimncid(Symbol*);
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*/
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static void gencml_group(Symbol* group);
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static char* ncxtype(nc_type type);
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#ifdef USE_NETCDF4
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static void definextype(Symbol*);
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static char* xprefixed(List* prefix, char* suffix, char* separator);
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static void definespecialattributes(Symbol* vsym);
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#endif
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static void defineattribute(Symbol* asym);
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static void definevardata(Symbol*);
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#ifdef USE_NETCDF4
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static void xprint(Bytebuffer* buf);
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#endif
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static void xpartial(char* line);
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static void xline(char* line);
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static void xflush(void);
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/*
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Global Bytebuffer into which to store the C code output;
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periodically dumped to file by xflush().
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*/
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Bytebuffer* xcode;
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/*
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* Generate C code for creating netCDF from in-memory structure.
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*/
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void
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gen_nccml(const char *filename)
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{
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xcode = bbNew();
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bbSetalloc(xcode,C_MAX_STMT);
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/* Dump XML header */
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xline("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
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xline("<netcdf xmlns=\"http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2\">");
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xline("");
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xline("<explicit/>");
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xline("");
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xflush();
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/* Recursively dump all groups via the rootgroup */
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gencml_group(rootgroup);
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}
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void
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cl_cml(void)
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{
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xline("</netcdf>");
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xflush();
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}
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static void
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gencml_group(Symbol* group)
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{
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int idim, ivar, iatt;
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int ndims, nvars, natts, ngatts, ngrps, ntyps;
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#ifdef USE_NETCDF4
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int igrp,ityp;
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#endif
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ndims = listlength(dimdefs);
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nvars = listlength(vardefs);
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natts = listlength(attdefs);
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ngatts = listlength(gattdefs);
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ngrps = listlength(grpdefs);
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ntyps = listlength(typdefs);
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#ifdef USE_NETCDF4
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if(group != rootgroup) {
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xline("");
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xpartial("<group name=");
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xpartial("\"");
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xpartial(xname(group));
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xline("\" >");
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}
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#endif
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#ifdef USE_NETCDF4
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/* Construct code to define types*/
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if(ntyps > 0) {
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xline("<!-- define types -->");
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xline("<types>");
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for(ityp = 0; ityp < ntyps; ityp++) {
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Symbol* tsym = (Symbol*)listget(typdefs,ityp);
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xline("");
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if(tsym->subclass == NC_PRIM
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|| tsym->subclass == NC_ARRAY) continue;/*no need to do these*/
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definextype(tsym);
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}
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xline("");
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xline("</types>");
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}
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xflush();
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#endif
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/* define dimensions from info in dims array */
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if (ndims > 0) {
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xline("");
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xline("<!-- define dimensions -->");
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for(idim = 0; idim < ndims; idim++) {
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Symbol* dsym = (Symbol*)listget(dimdefs,idim);
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unsigned long declsize = dsym->dim.size;
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char* utag = "";
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if(declsize == 0)
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utag = " isUnlimited=\"true\"";
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nprintf(stmt,sizeof(stmt),
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"<dimension name=\"%s\" length=\"%lu\"%s />",
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xname(dsym),declsize,utag);
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xline(stmt);
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}
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}
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xflush();
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/* Define the global attributes*/
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if(ngatts > 0) {
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xline("");
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xline("<!-- Define global attributes -->");
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for(iatt = 0; iatt < ngatts; iatt++) {
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Symbol* gasym = (Symbol*)listget(gattdefs,iatt);
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if(gasym->att.var == NULL) /* => global */
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defineattribute(gasym);
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}
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xline("");
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}
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xflush();
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/* define variables from info in vars array */
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if (nvars > 0) {
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xline("");
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xline("<!-- define variables -->");
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for(ivar = 0; ivar < nvars; ivar++) {
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Symbol* vsym = (Symbol*)listget(vardefs,ivar);
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Dimset* dimset = &vsym->typ.dimset;
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if(ivar > 0) xline("");
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nprintf(stmt,sizeof(stmt),"<variable name=\"%s\"",xname(vsym));
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xpartial(stmt);
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if(dimset->ndims > 0) {
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xpartial(" shape=\"");
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for(idim = 0; idim < dimset->ndims; idim++) {
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Symbol* dsym = dimset->dimsyms[idim];
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if(idim > 0) xpartial(" ");
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xpartial(xname(dsym));
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}
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xpartial("\"");
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}
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xpartial(" type=\"");
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xpartial(xname(vsym->typ.basetype));
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xline(" >");
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#ifdef USE_NETCDF4
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definespecialattributes(vsym);
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#endif /*USE_NETCDF4*/
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if(natts > 0) {
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for(iatt = 0; iatt < natts; iatt++) {
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Symbol* asym = (Symbol*)listget(attdefs,iatt);
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if(asym->att.var == vsym) defineattribute(asym);
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}
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}
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if(vsym->data != NULL) definevardata(vsym);
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xline("</variable>");
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}
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}
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xflush();
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#ifdef USE_NETCDF4
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/* Recursively define subgroups */
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for(igrp=0;igrp<ngrps;igrp++) {
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Symbol* gsym = (Symbol*)listget(grpdefs,igrp);
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if(gsym->container != group) continue;
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gencml_group(gsym);
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}
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#endif
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#ifdef USE_NETCDF4
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if(group != rootgroup) {
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xline("</group>");
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}
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#endif
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}
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#ifdef USE_NETCDF4
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static void
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definespecialattributes(Symbol* vsym)
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{
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Specialdata* special = &vsym->var.special;
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if(usingclassic) return;
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if(special->flags & _STORAGE_FLAG) {
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int storage = special->_Storage;
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size_t* chunks = special->_ChunkSizes;
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nprintf(stmt,sizeof(stmt),"<attribute name=\"_Chunksizes\" storage=\"%s\"",
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(storage == NC_CONTIGUOUS?"contiguous":"chunked"));
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xpartial(stmt);
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if(special->nchunks != 0 && chunks != NULL) {
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int i;
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xpartial(" value=\"");
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for(i=0;i<special->nchunks;i++) {
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if(i > 0) xpartial(" ");
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nprintf(stmt,sizeof(stmt),"%ld",special->_ChunkSizes[i]);
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xpartial(stmt);
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}
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xpartial("\"");
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}
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xline(" />");
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}
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if(special->flags & _FLETCHER32_FLAG) {
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nprintf(stmt,sizeof(stmt),
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"<attribute name=\"_Fletcher32\" value=\"%s\" />",
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(special->_Fletcher32?"true":"false"));
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xline(stmt);
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}
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if(special->flags & (_DEFLATE_FLAG | _SHUFFLE_FLAG)) {
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nprintf(stmt,sizeof(stmt),
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"<attribute name=\"_DeflateLevel\" shuffle=\"%s\" deflate=\"%s\" value=\"%d\" />",
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(special->_Shuffle==1?"shuffle":"noshuffle"),
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(special->_DeflateLevel >= 0?"true":"false"),
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(special->_DeflateLevel >= 0?special->_DeflateLevel:0));
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xline(stmt);
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}
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if(special->flags & _ENDIAN_FLAG) {
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nprintf(stmt,sizeof(stmt),
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"<attribute name=\"_Endianness\" value=\"%s\" />",
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(special->_Endianness == NC_ENDIAN_LITTLE?"little":"big"));
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xline(stmt);
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}
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if(special->flags & _NOFILL_FLAG) {
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nprintf(stmt,sizeof(stmt),
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"<attribute name=\"_Fill\" value=\"%s\" />",
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(special->_Fill?"fill":"nofill"));
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xline(stmt);
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}
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}
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static void
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definextype(Symbol* tsym)
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{
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int i;
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ASSERT(tsym->objectclass == NC_TYPE);
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switch (tsym->subclass) {
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case NC_PRIM: break; /* these are already taken care of*/
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case NC_OPAQUE:
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nprintf(stmt,sizeof(stmt),"<opaque name=\"%s\" size=\"%lu\" />",
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xname(tsym),(unsigned long)tsym->typ.size);
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xline(stmt);
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break;
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case NC_ENUM:
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nprintf(stmt,sizeof(stmt),"<enum name=\"%s\" type=\"%s\" >",
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xname(tsym),xtypename(tsym->typ.basetype));
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xline(stmt);
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stmt[0] = 0;
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for(i=0;i<listlength(tsym->subnodes);i++) {
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Symbol* econst = (Symbol*)listget(tsym->subnodes,i);
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ASSERT(econst->subclass == NC_ECONST);
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nprintf(stmt,sizeof(stmt),"<enumconst name=\"%s\" value=\"%s\" />",
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xname(econst),
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xconst(&econst->typ.econst));
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xline(stmt);
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}
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xline("</enum>");
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break;
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case NC_VLEN:
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nprintf(stmt,sizeof(stmt),"<vlen name=\"%s\" type=\"%s\" />",
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xname(tsym),xtypename(tsym));
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xline(stmt);
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break;
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case NC_COMPOUND:
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nprintf(stmt,sizeof(stmt),"<compound name=\"%s\" >",
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xname(tsym));
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xline(stmt);
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for(i=0;i<listlength(tsym->subnodes);i++) {
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Symbol* efield = (Symbol*)listget(tsym->subnodes,i);
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ASSERT(efield->subclass == NC_FIELD);
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nprintf(stmt,sizeof(stmt),"<field name=\"%s\"",xname(efield));
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xpartial(stmt);
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/* compute any dimension specification*/
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if(efield->typ.dimset.ndims > 0) {
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Bytebuffer* dimbuf = bbNew();
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int j;
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bbCat(dimbuf," shape=\"");
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for(j=0;j<efield->typ.dimset.ndims;j++) {
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char tmp[32];
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Symbol* dim;
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if(j > 0) bbCat(dimbuf," ");
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dim = efield->typ.dimset.dimsyms[j];
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ASSERT(dim->dim.isconstant);
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sprintf(tmp,"%lu",(unsigned long)dim->dim.size);
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bbCat(dimbuf,tmp);
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}
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bbCat(dimbuf,"\"");
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xprint(dimbuf);
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bbFree(dimbuf);
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}
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nprintf(stmt,sizeof(stmt)," type=\"%s\" />",
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xtypename(efield->typ.basetype));
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xline(stmt);
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}
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xline("</compound>");
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xflush();
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break;
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case NC_ARRAY:
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/* ignore: this will be handled by def_var*/
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break;
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default: panic("definextype: unexpected type subclass: %d",tsym->subclass);
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}
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}
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#endif /*USE_NETCDF4*/
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static void
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defineattribute(Symbol* asym)
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{
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unsigned long len;
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Datalist* list;
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Symbol* basetype = asym->typ.basetype;
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Bytebuffer* code = NULL; /* capture other decls*/
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list = asym->data;
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if(list == NULL) PANIC("empty attribute list");
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len = asym->att.count;
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if(len == 0) PANIC("empty attribute list");
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code = bbNew();
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gencml_attrdata(asym,code);
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/* Handle NC_CHAR specially */
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if(basetype->typ.typecode == NC_CHAR) {
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/* revise the length count */
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len = bbLength(code);
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if(len == 0) {bbAppend(code,'\0'); len++;}
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xquotestring(code);
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}
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if(isprimplus(basetype->typ.typecode)) {
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nprintf(stmt,sizeof(stmt),"<attribute name=\"%s\" type=\"%s\" value=\"%s\" />",
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xname(asym),xtypename(asym->typ.basetype),
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bbContents(code));
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xline(stmt);
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} else {
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nprintf(stmt,sizeof(stmt),"<attribute name=\"%s\" type=\"%s\" >",
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xname(asym),xtypename(asym->typ.basetype));
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xline(stmt);
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xpartial("<values>");
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xpartial(bbContents(code));
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xline("</values>");
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xline("</attribute>");
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}
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xflush();
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}
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/* Note: no closure is used for CML */
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static void
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definevardata(Symbol* vsym)
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{
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Dimset* dimset = &vsym->typ.dimset;
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int isscalar = (dimset->ndims == 0);
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Bytebuffer* code;
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nc_type typecode = vsym->typ.basetype->typ.typecode;
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if(vsym->data == NULL) return;
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code = bbNew();
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/* Handle special cases first*/
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if(isscalar) {
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gencml_scalardata(vsym,code);
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} else { /* Non-scalar*/
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gencml_arraydata(vsym,code);
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}
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if(typecode == NC_STRING) {
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xpartial("<values>");
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xpartial(bbContents(code));
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xline("</values>");
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} else {
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xline("<values>");
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xpartial(bbContents(code));
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if(isprimplus(vsym->typ.basetype->typ.typecode)) xline("");
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xline("</values>");
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}
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bbFree(code);
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}
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/* return CML name for netCDF type, given type code */
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static char *
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ncxtype(nc_type type) /* netCDF type code */
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{
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switch (type) {
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case NC_CHAR: return "char";
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case NC_BYTE: return "byte";
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case NC_SHORT: return "short";
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case NC_INT: return "int";
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case NC_FLOAT: return "float";
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case NC_DOUBLE: return "double";
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case NC_UBYTE: return "ubyte";
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case NC_USHORT: return "ushort";
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case NC_UINT: return "uint";
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case NC_INT64: return "int64";
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case NC_UINT64: return "uint64";
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case NC_STRING: return "string";
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default: PANIC("nctype: bad type code");
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}
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return NULL;
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}
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/* Compute the CML name for a given type*/
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char*
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xtypename(Symbol* tsym)
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{
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char* name;
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ASSERT(tsym->objectclass == NC_TYPE);
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if(tsym->subclass == NC_PRIM)
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name = ncxtype(tsym->typ.typecode);
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else
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name = xname(tsym);
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return name;
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}
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/* Compute the CML name for a given symbol*/
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/* Cache in symbol->lname*/
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char*
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xname(Symbol* sym)
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{
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if(sym->lname == NULL) {
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char* name = pooldup(sym->name);
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#ifdef USE_NETCDF4
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if(sym->subclass == NC_FIELD || sym->subclass == NC_ECONST) {
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sym->lname = nulldup(codify(name));
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} else
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sym->lname = nulldup(codify(xprefixed(sym->prefix,name,"/")));
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#else
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sym->lname = nulldup(codify(name)); /* convert to usable form*/
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#endif
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}
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return sym->lname;
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}
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#ifdef USE_NETCDF4
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/* Result is pool alloc'd*/
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static char*
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xprefixed(List* prefix, char* suffix, char* separator)
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{
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int slen;
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int plen;
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int i;
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char* result;
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ASSERT(suffix != NULL);
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plen = prefixlen(prefix);
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if(prefix == NULL || plen == 0) return codify(suffix);
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/* plen > 0*/
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slen = 0;
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for(i=0;i<plen;i++) {
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Symbol* sym = (Symbol*)listget(prefix,i);
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slen += (strlen(sym->name)+strlen(separator));
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}
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slen += strlen(suffix);
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slen++; /* for null terminator*/
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result = poolalloc(slen);
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result[0] = '\0';
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/* Leave off the root*/
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i = (rootgroup == (Symbol*)listget(prefix,0))?1:0;
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for(;i<plen;i++) {
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Symbol* sym = (Symbol*)listget(prefix,i);
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strcat(result,sym->name); /* append "<prefix[i]/>"*/
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strcat(result,separator);
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}
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strcat(result,suffix); /* append "<suffix>"*/
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return result;
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}
|
|
#endif
|
|
|
|
/**************************************************/
|
|
/*
|
|
* Output a CML statement
|
|
*/
|
|
|
|
#ifdef USE_NETCDF4
|
|
static void
|
|
xprint(Bytebuffer* buf)
|
|
{
|
|
bbAppendn(xcode,bbContents(buf),bbLength(buf));
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
xpartial(char* line)
|
|
{
|
|
bbCat(xcode,line);
|
|
}
|
|
|
|
static void
|
|
xline(char* line)
|
|
{
|
|
xpartial(line);
|
|
bbCat(xcode,"\n");
|
|
}
|
|
|
|
static void
|
|
xflush(void)
|
|
{
|
|
if(bbLength(xcode) > 0) {
|
|
bbAppend(xcode,'\0');
|
|
fputs(bbContents(xcode),stdout);
|
|
fflush(stdout);
|
|
bbClear(xcode);
|
|
}
|
|
}
|
|
|
|
#endif /*ENABLE_CML*/
|