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https://github.com/Unidata/netcdf-c.git
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53464e8963
re: https://github.com/Unidata/netcdf-c/issues/2119 H/T to [Egbert Eich](https://github.com/e4t) and [Bas Couwenberg](https://github.com/sebastic) for this PR. It is undesirable to make netcdf be dependent on the availability of libxml2, but it is desirable to allow its use if available. In order to do this, a wrapper API (include/ncxml.h) was constructed that supports either ezxml or libxml2 as the implementation. Additionally, the xml support code was moved to a new directory netcdf-c/libncxml. Primary changes: * Create a new sub-directory named netcdf-c/libncxml to hold all the xml implementation code. * Move ezxml.c and ezxml.h to libncxml * Create a wrapper API -- include/ncxml.h * Create an implementation, ncxml_ezxml.c to support use of ezxml. * Create an implementation, ncxml_xml2.c to support use of libxml2. * Add a check for libxml2 in configure.ac and CMakeLists.txt * Modify libdap to use the wrapper API instead of ezxml directly. Misc. Other Changes: * Change include/netcdf_json.h from built source to be part of the distribution.
1621 lines
46 KiB
C
1621 lines
46 KiB
C
/*********************************************************************
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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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*********************************************************************/
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#include "d4includes.h"
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#include <stdarg.h>
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#include <assert.h>
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#include "ncxml.h"
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/**
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* Implement the Dap4 Parser Using a DOM Parser
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*
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* This code creates in internal representation of the netcdf-4 metadata
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* to avoid having to make so many calls into the netcdf library.
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*/
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/***************************************************/
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/*
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Map an xml node name to an interpretation.
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We use NCD4_NULL when we directly interpret
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the tag and do not need to search for it.
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E.g Dataset, Dim, econst, etc.
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If the sort is NCD4_NULL, then that means it is
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irrelevant because that keyword will never be
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searched for in this table.
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*/
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static const struct KEYWORDINFO {
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char* tag; /* The xml tag e.g. <tag...> */
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NCD4sort sort; /* What kind of node are we building */
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nc_type subsort; /* discriminator */
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char* aliasfor; /* Some names are aliases for others */
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} keywordmap[] = {
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{"Attribute", NCD4_ATTR,NC_NAT,NULL},
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{"Byte", NCD4_VAR,NC_BYTE,"Int8"},
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{"Char", NCD4_VAR,NC_CHAR,NULL},
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{"Dataset", NCD4_NULL,NC_NAT,NULL},
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{"Dim", NCD4_NULL,NC_NAT,NULL},
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{"Dimension", NCD4_DIM,NC_NAT,NULL},
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{"Enum", NCD4_VAR,NC_ENUM,NULL},
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{"Enumconst", NCD4_NULL,NC_NAT,NULL},
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{"Enumeration", NCD4_TYPE,NC_ENUM,NULL},
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{"Float32", NCD4_VAR,NC_FLOAT,NULL},
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{"Float64", NCD4_VAR,NC_DOUBLE,NULL},
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{"Group", NCD4_GROUP,NC_NAT,NULL},
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{"Int16", NCD4_VAR,NC_SHORT,NULL},
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{"Int32", NCD4_VAR,NC_INT,NULL},
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{"Int64", NCD4_VAR,NC_INT64,NULL},
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{"Int8", NCD4_VAR,NC_BYTE,NULL},
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{"Map", NCD4_NULL,NC_NAT,NULL},
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{"Opaque", NCD4_VAR,NC_OPAQUE,NULL},
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{"OtherXML", NCD4_XML,NC_NAT,NULL},
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{"Sequence", NCD4_VAR,NC_SEQ,NULL},
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{"String", NCD4_VAR,NC_STRING,NULL},
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{"Structure", NCD4_VAR,NC_STRUCT,NULL},
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{"UByte", NCD4_VAR,NC_UBYTE,"UInt8"},
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{"UInt16", NCD4_VAR,NC_USHORT,NULL},
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{"UInt32", NCD4_VAR,NC_UINT,NULL},
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{"UInt64", NCD4_VAR,NC_UINT64,NULL},
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{"UInt8", NCD4_VAR,NC_UBYTE,NULL},
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{"URL", NCD4_VAR,NC_STRING,"String"},
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{"Url", NCD4_VAR,NC_STRING,"String"},
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};
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typedef struct KEYWORDINFO KEYWORDINFO;
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static const struct ATOMICTYPEINFO {
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char* name; nc_type type; size_t size;
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} atomictypeinfo[] = {
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/* Keep in sorted order for binary search */
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/* Use lower case for canonical comparison, but keep proper name here */
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{"Byte",NC_BYTE,sizeof(char)},
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{"Char",NC_CHAR,sizeof(char)},
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{"Float32",NC_FLOAT,sizeof(float)},
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{"Float64",NC_DOUBLE,sizeof(double)},
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{"Int16",NC_SHORT,sizeof(short)},
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{"Int32",NC_INT,sizeof(int)},
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{"Int64",NC_INT64,sizeof(long long)},
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{"Int8",NC_BYTE,sizeof(char)},
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{"String",NC_STRING,sizeof(char*)},
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{"UByte",NC_UBYTE,sizeof(unsigned char)},
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{"UInt16",NC_USHORT,sizeof(unsigned short)},
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{"UInt32",NC_UINT,sizeof(unsigned int)},
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{"UInt64",NC_UINT64,sizeof(unsigned long long)},
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{"UInt8",NC_UBYTE,sizeof(unsigned char)},
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{"Url",NC_STRING,sizeof(char*)},
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{NULL,NC_NAT,0}
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};
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/***************************************************/
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#ifdef D4DEBUG
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static void setname(NCD4node* node, const char* name)
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{
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nullfree(node->name);
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(node)->name = strdup(name); \
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fprintf(stderr,"setname: node=%lx name=%s\n",(unsigned long)(node),(node)->name); \
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}
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#define SETNAME(node,src) setname((node),src)
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#else
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#define SETNAME(node,src) do {nullfree((node)->name); (node)->name = strdup(src);} while(0);
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#endif
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/***************************************************/
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/* Forwards */
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static int addOrigType(NCD4parser*, NCD4node* src, NCD4node* dst, const char* tag);
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static int defineAtomicTypes(NCD4meta*,NClist*);
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static void classify(NCD4node* container, NCD4node* node);
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static int convertString(union ATOMICS*, NCD4node* type, const char* s);
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static int downConvert(union ATOMICS*, NCD4node* type);
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static int fillgroup(NCD4parser*, NCD4node* group, ncxml_t xml);
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static NCD4node* getOpaque(NCD4parser*, ncxml_t varxml, NCD4node* group);
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static int getValueStrings(NCD4parser*, NCD4node*, ncxml_t xattr, NClist*);
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static int isReserved(const char* name);
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static const KEYWORDINFO* keyword(const char* name);
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static NCD4node* lookupAtomicType(NClist*, const char* name);
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static NCD4node* lookFor(NClist* elems, const char* name, NCD4sort sort);
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static NCD4node* lookupFQN(NCD4parser*, const char* sfqn, NCD4sort);
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static int lookupFQNList(NCD4parser*, NClist* fqn, NCD4sort sort, NCD4node** result);
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static NCD4node* makeAnonDim(NCD4parser*, const char* sizestr);
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static int makeNode(NCD4parser*, NCD4node* parent, ncxml_t, NCD4sort, nc_type, NCD4node**);
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static int makeNodeStatic(NCD4meta* meta, NCD4node* parent, NCD4sort sort, nc_type subsort, NCD4node** nodep);
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static int parseAtomicVar(NCD4parser*, NCD4node* container, ncxml_t xml, NCD4node**);
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static int parseAttributes(NCD4parser*, NCD4node* container, ncxml_t xml);
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static int parseDimensions(NCD4parser*, NCD4node* group, ncxml_t xml);
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static int parseDimRefs(NCD4parser*, NCD4node* var, ncxml_t xml);
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static int parseEconsts(NCD4parser*, NCD4node* en, ncxml_t xml);
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static int parseEnumerations(NCD4parser*, NCD4node* group, ncxml_t dom);
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static int parseFields(NCD4parser*, NCD4node* container, ncxml_t xml);
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static int parseError(NCD4parser*, ncxml_t errxml);
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static int parseGroups(NCD4parser*, NCD4node* group, ncxml_t dom);
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static int parseMaps(NCD4parser*, NCD4node* var, ncxml_t xml);
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static int parseMetaData(NCD4parser*, NCD4node* node, ncxml_t xml);
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static int parseStructure(NCD4parser*, NCD4node* container, ncxml_t dom, NCD4node**);
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static int parseSequence(NCD4parser*, NCD4node* container, ncxml_t dom,NCD4node**);
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static int parseLL(const char* text, long long*);
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static int parseULL(const char* text, unsigned long long*);
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static int parseVariables(NCD4parser*, NCD4node* group, ncxml_t xml);
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static int parseVariable(NCD4parser*, NCD4node* group, ncxml_t xml, NCD4node**);
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static void reclaimParser(NCD4parser* parser);
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static void record(NCD4parser*, NCD4node* node);
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static int splitOrigType(NCD4parser*, const char* fqn, NCD4node* var);
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static void track(NCD4meta*, NCD4node* node);
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static int traverse(NCD4parser*, ncxml_t dom);
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static int parseForwards(NCD4parser* parser, NCD4node* root);
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#ifndef FIXEDOPAQUE
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static int defineBytestringType(NCD4parser*);
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#endif
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/***************************************************/
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/* API */
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int
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NCD4_parse(NCD4meta* metadata)
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{
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int ret = NC_NOERR;
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NCD4parser* parser = NULL;
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ncxml_doc_t doc = NULL;
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ncxml_t dom = NULL;
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/* fill in the atomic types for meta*/
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metadata->atomictypes = nclistnew();
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if((ret=defineAtomicTypes(metadata,metadata->atomictypes))) goto done;
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/* Create and fill in the parser state */
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parser = (NCD4parser*)calloc(1,sizeof(NCD4parser));
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if(parser == NULL) {ret=NC_ENOMEM; goto done;}
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parser->metadata = metadata;
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doc = ncxml_parse(parser->metadata->serial.dmr,strlen(parser->metadata->serial.dmr));
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if(doc == NULL) {ret=NC_ENOMEM; goto done;}
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dom = ncxml_root(doc);
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parser->types = nclistnew();
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parser->dims = nclistnew();
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parser->vars = nclistnew();
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#ifdef D4DEBUG
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parser->debuglevel = 1;
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#endif
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/*Walk the DOM tree to build the DAP4 node tree*/
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ret = traverse(parser,dom);
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done:
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if(doc != NULL)
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ncxml_free(doc);
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reclaimParser(parser);
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return THROW(ret);
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}
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static void
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reclaimParser(NCD4parser* parser)
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{
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if(parser == NULL) return;
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nclistfree(parser->types);
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nclistfree(parser->dims);
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nclistfree(parser->vars);
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nclistfree(parser->groups);
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free (parser);
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}
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/**************************************************/
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/* Recursively walk the DOM tree to create the metadata */
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static int
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traverse(NCD4parser* parser, ncxml_t dom)
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{
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int ret = NC_NOERR;
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/* See if we have an <Error> or <Dataset> */
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if(strcmp(ncxml_name(dom),"Error")==0) {
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ret=parseError(parser,dom);
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/* Report the error */
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fprintf(stderr,"DAP4 Error: http-code=%d message=\"%s\" context=\"%s\"\n",
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parser->metadata->error.httpcode,
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parser->metadata->error.message,
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parser->metadata->error.context);
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fflush(stderr);
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ret=NC_EDMR;
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goto done;
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} else if(strcmp(ncxml_name(dom),"Dataset")==0) {
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char* xattr = NULL;
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if((ret=makeNode(parser,NULL,NULL,NCD4_GROUP,NC_NULL,&parser->metadata->root))) goto done;
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parser->metadata->root->group.isdataset = 1;
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parser->metadata->root->meta.id = parser->metadata->ncid;
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parser->metadata->groupbyid = nclistnew();
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SETNAME(parser->metadata->root,"/");
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xattr = ncxml_attr(dom,"name");
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if(xattr != NULL) parser->metadata->root->group.datasetname = xattr;
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xattr = ncxml_attr(dom,"dapVersion");
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if(xattr != NULL) parser->metadata->root->group.dapversion = xattr;
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xattr = ncxml_attr(dom,"dmrVersion");
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if(xattr != NULL) parser->metadata->root->group.dmrversion = xattr;
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/* Recursively walk the tree */
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if((ret = fillgroup(parser,parser->metadata->root,dom))) goto done;
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/* Walk a second time to parse allowed forward refs:
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1. <Map>
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*/
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if((ret = parseForwards(parser,parser->metadata->root))) goto done;
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} else
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FAIL(NC_EINVAL,"Unexpected dom root name: %s",ncxml_name(dom));
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done:
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return THROW(ret);
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}
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static int
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fillgroup(NCD4parser* parser, NCD4node* group, ncxml_t xml)
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{
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int ret = NC_NOERR;
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/* Extract Dimensions */
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if((ret = parseDimensions(parser,group,xml))) goto done;
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/* Extract Enum types */
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if((ret = parseEnumerations(parser,group,xml))) goto done;
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/* Extract variables */
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if((ret = parseVariables(parser,group,xml))) goto done;
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/* Extract subgroups*/
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if((ret = parseGroups(parser,group,xml))) goto done;
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/* Parse group level attributes */
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if((ret = parseAttributes(parser,group,xml))) goto done;
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done:
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return THROW(ret);
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}
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static int
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parseDimensions(NCD4parser* parser, NCD4node* group, ncxml_t xml)
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{
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int ret = NC_NOERR;
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ncxml_t x;
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for(x=ncxml_child(xml, "Dimension");x != NULL;x = ncxml_next(x,"Dimension")) {
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NCD4node* dimnode = NULL;
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unsigned long long size;
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char* sizestr;
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char* unlimstr;
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sizestr = ncxml_attr(x,"size");
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if(sizestr == NULL)
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FAIL(NC_EDIMSIZE,"Dimension has no size");
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unlimstr = ncxml_attr(x,UCARTAGUNLIM);
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if((ret = parseULL(sizestr,&size))) goto done;
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nullfree(sizestr);
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if((ret=makeNode(parser,group,x,NCD4_DIM,NC_NULL,&dimnode))) goto done;
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dimnode->dim.size = (long long)size;
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dimnode->dim.isunlimited = (unlimstr != NULL);
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nullfree(unlimstr);
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/* Process attributes */
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if((ret = parseAttributes(parser,dimnode,x))) goto done;
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classify(group,dimnode);
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}
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done:
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return THROW(ret);
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}
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static int
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parseEnumerations(NCD4parser* parser, NCD4node* group, ncxml_t xml)
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{
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int ret = NC_NOERR;
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ncxml_t x;
|
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for(x=ncxml_child(xml, "Enumeration");x != NULL;x = ncxml_next(x, "Enumeration")) {
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NCD4node* node = NULL;
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NCD4node* basetype = NULL;
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char* fqn = ncxml_attr(x,"basetype");
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basetype = lookupFQN(parser,fqn,NCD4_TYPE);
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if(basetype == NULL) {
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FAIL(NC_EBADTYPE,"Enumeration has unknown type: ",fqn);
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}
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nullfree(fqn);
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if((ret=makeNode(parser,group,x,NCD4_TYPE,NC_ENUM,&node))) goto done;
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node->basetype = basetype;
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if((ret=parseEconsts(parser,node,x))) goto done;
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if(nclistlength(node->en.econsts) == 0)
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FAIL(NC_EINVAL,"Enumeration has no values");
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classify(group,node);
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/* Finally, see if this type has UCARTAGORIGTYPE xml attribute */
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if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
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char* typetag = ncxml_attr(x,UCARTAGORIGTYPE);
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if(typetag != NULL) {
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|
}
|
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nullfree(typetag);
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}
|
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}
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done:
|
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return THROW(ret);
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}
|
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|
|
static int
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parseEconsts(NCD4parser* parser, NCD4node* en, ncxml_t xml)
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|
{
|
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int ret = NC_NOERR;
|
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ncxml_t x;
|
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NClist* econsts = nclistnew();
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|
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for(x=ncxml_child(xml, "EnumConst");x != NULL;x = ncxml_next(x, "EnumConst")) {
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NCD4node* ec = NULL;
|
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char* name;
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char* svalue;
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name = ncxml_attr(x,"name");
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if(name == NULL) FAIL(NC_EBADNAME,"Enum const with no name");
|
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if((ret=makeNode(parser,en,x,NCD4_ECONST,NC_NULL,&ec))) goto done ;
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nullfree(name);
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svalue = ncxml_attr(x,"value");
|
|
if(svalue == NULL)
|
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FAIL(NC_EINVAL,"Enumeration Constant has no value");
|
|
if((ret=convertString(&ec->en.ecvalue,en->basetype,svalue)))
|
|
FAIL(NC_EINVAL,"Non-numeric Enumeration Constant: %s->%s",ec->name,svalue);
|
|
nullfree(svalue);
|
|
PUSH(econsts,ec);
|
|
}
|
|
en->en.econsts = econsts;
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseVariables(NCD4parser* parser, NCD4node* group, ncxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ncxml_t x;
|
|
for(x=ncxml_child_first(xml);x != NULL;x=ncxml_child_next(x)) {
|
|
NCD4node* node = NULL;
|
|
const KEYWORDINFO* info = keyword(ncxml_name(x));
|
|
if(info == NULL)
|
|
FAIL(NC_ETRANSLATION,"Unexpected node type: %s",ncxml_name(x));
|
|
/* Check if we need to process this node */
|
|
if(!ISVAR(info->sort)) continue; /* Handle elsewhere */
|
|
node = NULL;
|
|
ret = parseVariable(parser,group,x,&node);
|
|
if(ret != NC_NOERR || node == NULL) break;
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseVariable(NCD4parser* parser, NCD4node* container, ncxml_t xml, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* node = NULL;
|
|
const KEYWORDINFO* info = keyword(ncxml_name(xml));
|
|
|
|
switch (info->subsort) {
|
|
case NC_STRUCT:
|
|
ret = parseStructure(parser,container,xml,&node);
|
|
break;
|
|
case NC_SEQ:
|
|
ret = parseSequence(parser,container,xml,&node);
|
|
break;
|
|
default:
|
|
ret = parseAtomicVar(parser,container,xml,&node);
|
|
}
|
|
if(ret == NC_NOERR) {
|
|
*nodep = node;
|
|
}
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseMetaData(NCD4parser* parser, NCD4node* container, ncxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
/* Process dimrefs */
|
|
if((ret=parseDimRefs(parser,container,xml))) goto done;
|
|
/* Process attributes */
|
|
if((ret = parseAttributes(parser,container,xml))) goto done;
|
|
/* Process maps */
|
|
if((ret = parseMaps(parser,container,xml))) goto done;
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseStructure(NCD4parser* parser, NCD4node* container, ncxml_t xml, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* var = NULL;
|
|
NCD4node* type = NULL;
|
|
NCD4node* group = NULL;
|
|
char* fqnname = NULL;
|
|
|
|
group = NCD4_groupFor(container); /* default: put type in the same group as var */
|
|
|
|
/* Make the structure as a variable with same name as structure; will be fixed later */
|
|
if((ret=makeNode(parser,container,xml,NCD4_VAR,NC_STRUCT,&var))) goto done;
|
|
classify(container,var);
|
|
|
|
/* Make the structure as a type with (for now) partial fqn name from the variable */
|
|
if((ret=makeNode(parser,group,xml,NCD4_TYPE,NC_STRUCT,&type))) goto done;
|
|
classify(group,type);
|
|
/* Set the basetype */
|
|
var->basetype = type;
|
|
/* Now change the struct typename */
|
|
fqnname = NCD4_makeName(var,"_");
|
|
if(fqnname == NULL)
|
|
FAIL(NC_ENOMEM,"Out of memory");
|
|
SETNAME(type,fqnname);
|
|
|
|
/* Parse Fields into the type */
|
|
if((ret = parseFields(parser,type,xml))) goto done;
|
|
|
|
/* Parse attributes, dims, and maps into the var */
|
|
if((ret = parseMetaData(parser,var,xml))) goto done;
|
|
|
|
/* See if this var has UCARTAGORIGTYPE attribute */
|
|
if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
|
|
char* typetag = ncxml_attr(xml,UCARTAGORIGTYPE);
|
|
if(typetag != NULL) {
|
|
/* yes, place it on the type */
|
|
if((ret=addOrigType(parser,var,type,typetag))) goto done;
|
|
nullfree(typetag);
|
|
}
|
|
}
|
|
|
|
if(nodep) *nodep = var;
|
|
|
|
done:
|
|
nullfree(fqnname);
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseFields(NCD4parser* parser, NCD4node* container, ncxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ncxml_t x;
|
|
for(x=ncxml_child_first(xml);x != NULL;x=ncxml_child_next(x)) {
|
|
NCD4node* node = NULL;
|
|
const KEYWORDINFO* info = keyword(ncxml_name(x));
|
|
if(!ISVAR(info->sort)) continue; /* not a field */
|
|
ret = parseVariable(parser,container,x,&node);
|
|
if(ret) goto done;
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
/*
|
|
Specialized version of parseFields that is used
|
|
to attach a singleton field to a vlentype
|
|
*/
|
|
static int
|
|
parseVlenField(NCD4parser* parser, NCD4node* container, ncxml_t xml, NCD4node** fieldp)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* field = NULL;
|
|
ncxml_t x;
|
|
for(x=ncxml_child_first(xml);x != NULL;x=ncxml_child_next(x)) {
|
|
const KEYWORDINFO* info = keyword(ncxml_name(x));
|
|
if(!ISVAR(info->sort)) continue; /* not a field */
|
|
if(field != NULL)
|
|
{ret = NC_EBADTYPE; goto done;}
|
|
if((ret = parseVariable(parser,container,x,&field)))
|
|
goto done;
|
|
}
|
|
if(fieldp) *fieldp = field;
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseSequence(NCD4parser* parser, NCD4node* container, ncxml_t xml, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* var = NULL;
|
|
NCD4node* structtype = NULL;
|
|
NCD4node* vlentype = NULL;
|
|
NCD4node* group = NULL;
|
|
char name[NC_MAX_NAME];
|
|
char* fqnname = NULL;
|
|
int usevlen = 0;
|
|
|
|
group = NCD4_groupFor(container);
|
|
|
|
/* Convert a sequence variable into two or three things:
|
|
1. a compound type representing the fields of the sequence.
|
|
2. a vlen type whose basetype is #1
|
|
3. a variable whose basetype is #2.
|
|
If we can infer that the sequence was riginally produced
|
|
from a netcdf-4 vlen, then we can avoid creating #1.
|
|
Naming is as follows. Assume the var name is V
|
|
and the NCD4_makeName of the var is V1..._Vn.
|
|
1. var name is V.
|
|
2. vlen type is V1..._VN_t
|
|
3. compound type (if any) is V1..._VN_cmpd (Note, d4meta will append _t to this)
|
|
*/
|
|
|
|
/* Determine if we need to build a structure type or can go straight to a vlen
|
|
Test: UCARTAGVLEN xml attribute is set
|
|
*/
|
|
if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
|
|
char* vlentag = ncxml_attr(xml,UCARTAGVLEN);
|
|
if(vlentag != NULL)
|
|
usevlen = 1;
|
|
nullfree(vlentag);
|
|
} else
|
|
usevlen = 0;
|
|
|
|
/* make secondary names from the var fqn name */
|
|
if(usevlen) {
|
|
/* Parse the singleton field and then use it to fix up the var */
|
|
if((ret=parseVlenField(parser,container,xml,&var)))
|
|
goto done;
|
|
/* compute a partial fqn */
|
|
fqnname = NCD4_makeName(var,"_");
|
|
if(fqnname == NULL)
|
|
{ret = NC_ENOMEM; goto done;}
|
|
/* Now, create the vlen type using the field's basetype */
|
|
if((ret=makeNode(parser,group,xml,NCD4_TYPE,NC_SEQ,&vlentype))) goto done;
|
|
classify(group,vlentype);
|
|
vlentype->basetype = var->basetype;
|
|
/* Use name <fqnname>_t */
|
|
strncpy(name,fqnname,sizeof(name));
|
|
strlcat(name,"_t", sizeof(name));
|
|
SETNAME(vlentype,name);
|
|
/* Set the basetype */
|
|
var->basetype = vlentype;
|
|
} else {
|
|
/* Start by creating the var node; will be fixed up later */
|
|
if((ret=makeNode(parser,container,xml,NCD4_VAR,NC_SEQ,&var))) goto done;
|
|
classify(container,var);
|
|
fqnname = NCD4_makeName(var,"_");
|
|
if(fqnname == NULL)
|
|
{ret = NC_ENOMEM; goto done;}
|
|
if((ret=makeNode(parser,group,xml,NCD4_TYPE,NC_STRUCT,&structtype))) goto done;
|
|
classify(group,structtype);
|
|
/* Use name <fqnname>_base */
|
|
strncpy(name,fqnname,sizeof(name));
|
|
strlcat(name,"_base", sizeof(name));
|
|
SETNAME(structtype,name);
|
|
/* Parse Fields into type */
|
|
if((ret = parseFields(parser,structtype,xml))) goto done;
|
|
/* Create a seq type whose basetype is the compound type */
|
|
if((ret=makeNode(parser,group,xml,NCD4_TYPE,NC_SEQ,&vlentype))) goto done;
|
|
classify(group,vlentype);
|
|
/* Use name <xname>_t */
|
|
strncpy(name,fqnname,sizeof(name));
|
|
strlcat(name,"_t", sizeof(name));
|
|
SETNAME(vlentype,name);
|
|
vlentype->basetype = structtype;
|
|
/* Set the basetype */
|
|
var->basetype = vlentype;
|
|
}
|
|
|
|
/* Parse attributes, dims, and maps into var*/
|
|
if((ret = parseMetaData(parser,var,xml))) goto done;
|
|
|
|
/* See if this var has UCARTAGORIGTYPE attribute */
|
|
if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
|
|
char* typetag = ncxml_attr(xml,UCARTAGORIGTYPE);
|
|
if(typetag != NULL) {
|
|
/* yes, place it on the type */
|
|
if((ret=addOrigType(parser,var,vlentype,typetag))) goto done;
|
|
nullfree(typetag);
|
|
}
|
|
}
|
|
if(nodep) *nodep = var;
|
|
|
|
done:
|
|
if(fqnname) free(fqnname);
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseGroups(NCD4parser* parser, NCD4node* parent, ncxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ncxml_t x;
|
|
for(x=ncxml_child(xml, "Group");x != NULL;x = ncxml_next(x,"Group")) {
|
|
NCD4node* group = NULL;
|
|
char* name = ncxml_attr(x,"name");
|
|
if(name == NULL) FAIL(NC_EBADNAME,"Group has no name");
|
|
nullfree(name);
|
|
if((ret=makeNode(parser,parent,x,NCD4_GROUP,NC_NULL,&group))) goto done;
|
|
group->group.varbyid = nclistnew();
|
|
classify(parent,group);
|
|
if((ret = fillgroup(parser,group,x))) goto done;
|
|
/* Parse group attributes */
|
|
if((ret = parseAttributes(parser,group,x))) goto done;
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseAtomicVar(NCD4parser* parser, NCD4node* container, ncxml_t xml, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* node = NULL;
|
|
NCD4node* base = NULL;
|
|
const char* typename;
|
|
const KEYWORDINFO* info;
|
|
NCD4node* group;
|
|
|
|
/* Check for aliases */
|
|
for(typename=ncxml_name(xml);;) {
|
|
info = keyword(typename);
|
|
if(info->aliasfor == NULL) break;
|
|
typename = info->aliasfor;
|
|
}
|
|
group = NCD4_groupFor(container);
|
|
/* Locate its basetype; handle opaque and enum separately */
|
|
if(info->subsort == NC_ENUM) {
|
|
char* enumfqn = ncxml_attr(xml,"enum");
|
|
if(enumfqn == NULL)
|
|
base = NULL;
|
|
else
|
|
base = lookupFQN(parser,enumfqn,NCD4_TYPE);
|
|
nullfree(enumfqn);
|
|
} else if(info->subsort == NC_OPAQUE) {
|
|
/* See if the xml references an opaque type name */
|
|
base = getOpaque(parser,xml,group);
|
|
} else {
|
|
base = lookupFQN(parser,info->tag,NCD4_TYPE);
|
|
}
|
|
if(base == NULL || !ISTYPE(base->sort)) {
|
|
FAIL(NC_EBADTYPE,"Unexpected variable type: %s",info->tag);
|
|
}
|
|
if((ret=makeNode(parser,container,xml,NCD4_VAR,base->subsort,&node))) goto done;
|
|
classify(container,node);
|
|
node->basetype = base;
|
|
/* Parse attributes, dims, and maps */
|
|
if((ret = parseMetaData(parser,node,xml))) goto done;
|
|
/* See if this var has UCARTAGORIGTYPE attribute */
|
|
if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
|
|
char* typetag = ncxml_attr(xml,UCARTAGORIGTYPE);
|
|
if(typetag != NULL) {
|
|
/* yes, place it on the type */
|
|
if((ret=addOrigType(parser,node,node,typetag))) goto done;
|
|
nullfree(typetag);
|
|
}
|
|
}
|
|
if(nodep) *nodep = node;
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseDimRefs(NCD4parser* parser, NCD4node* var, ncxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ncxml_t x;
|
|
for(x=ncxml_child(xml, "Dim");x!= NULL;x=ncxml_next(x,"Dim")) {
|
|
NCD4node* dim = NULL;
|
|
char* fqn;
|
|
|
|
fqn = ncxml_attr(x,"name");
|
|
if(fqn != NULL) {
|
|
dim = lookupFQN(parser,fqn,NCD4_DIM);
|
|
if(dim == NULL) {
|
|
FAIL(NC_EBADDIM,"Cannot locate dim with name: %s",fqn);
|
|
}
|
|
nullfree(fqn);
|
|
} else {
|
|
char* sizestr = ncxml_attr(x,"size");
|
|
if(sizestr == NULL) {
|
|
FAIL(NC_EBADDIM,"Dimension reference has no name and no size");
|
|
}
|
|
/* Make or reuse anonymous dimension in root group */
|
|
dim = makeAnonDim(parser,sizestr);
|
|
if(dim == NULL)
|
|
FAIL(NC_EBADDIM,"Cannot create anonymous dimension for size: %s",sizestr);
|
|
nullfree(sizestr);
|
|
}
|
|
PUSH(var->dims,dim);
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseMaps(NCD4parser* parser, NCD4node* var, ncxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ncxml_t x;
|
|
|
|
for(x=ncxml_child(xml, "Map");x!= NULL;x=ncxml_next(x,"Map")) {
|
|
char* fqn;
|
|
fqn = ncxml_attr(x,"name");
|
|
if(fqn == NULL)
|
|
FAIL(NC_ENOTVAR,"<Map> has no name attribute");
|
|
PUSH(var->mapnames,fqn);
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseAttributes(NCD4parser* parser, NCD4node* container, ncxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ncxml_t x;
|
|
NClist* values = NULL;
|
|
char** pairs = NULL;
|
|
|
|
/* First, transfer any reserved xml attributes */
|
|
{
|
|
char** p;
|
|
if(!ncxml_attr_pairs(xml,&pairs))
|
|
{ret = NC_ENOMEM; goto done;}
|
|
if(container->xmlattributes) nclistfree(container->xmlattributes);
|
|
container->xmlattributes = nclistnew();
|
|
for(p=pairs;*p;p+=2) {
|
|
if(isReserved(*p)) {
|
|
PUSH(container->xmlattributes,strdup(p[0]));
|
|
PUSH(container->xmlattributes,strdup(p[1]));
|
|
}
|
|
}
|
|
}
|
|
|
|
for(x=ncxml_child(xml, "Attribute");x!= NULL;x=ncxml_next(x,"Attribute")) {
|
|
char* name = ncxml_attr(x,"name");
|
|
char* type = ncxml_attr(x,"type");
|
|
NCD4node* attr = NULL;
|
|
NCD4node* basetype;
|
|
|
|
if(name == NULL) FAIL(NC_EBADNAME,"Missing <Attribute> name");
|
|
nullfree(name);
|
|
#ifdef HYRAXHACK
|
|
/* Hyrax specifies type="container" for container types */
|
|
if(strcmp(type,"container")==0
|
|
|| strcmp(type,"Container")==0) {
|
|
nullfree(type);
|
|
type = NULL;
|
|
}
|
|
#endif
|
|
if(type == NULL) {
|
|
/* <Attribute> containers not supported; ignore */
|
|
continue;
|
|
}
|
|
|
|
if((ret=makeNode(parser,container,x,NCD4_ATTR,NC_NULL,&attr))) goto done;
|
|
basetype = lookupFQN(parser,type,NCD4_TYPE);
|
|
if(basetype == NULL)
|
|
FAIL(NC_EBADTYPE,"Unknown <Attribute> type: %s",type);
|
|
nullfree(type);
|
|
if(basetype->subsort == NC_NAT && basetype->subsort != NC_ENUM)
|
|
FAIL(NC_EBADTYPE,"<Attribute> type must be atomic or enum: %s",type);
|
|
attr->basetype = basetype;
|
|
values = nclistnew();
|
|
if((ret=getValueStrings(parser,basetype,x,values))) {
|
|
FAIL(NC_EINVAL,"Malformed attribute: %s",name);
|
|
}
|
|
attr->attr.values = values; values = NULL;
|
|
PUSH(container->attributes,attr);
|
|
}
|
|
done:
|
|
if(pairs) {
|
|
char** p = pairs;
|
|
for(;*p;p++) nullfree(*p);
|
|
free(pairs);
|
|
}
|
|
if(ret != NC_NOERR) {
|
|
nclistfreeall(values);
|
|
}
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseError(NCD4parser* parser, ncxml_t errxml)
|
|
{
|
|
char* shttpcode = ncxml_attr(errxml,"httpcode");
|
|
ncxml_t x;
|
|
if(shttpcode == NULL) shttpcode = strdup("400");
|
|
if(sscanf(shttpcode,"%d",&parser->metadata->error.httpcode) != 1)
|
|
nclog(NCLOGERR,"Malformed <ERROR> response");
|
|
nullfree(shttpcode);
|
|
x=ncxml_child(errxml, "Message");
|
|
if(x != NULL) {
|
|
char* txt = ncxml_text(x);
|
|
parser->metadata->error.message = (txt == NULL ? NULL : txt);
|
|
}
|
|
x = ncxml_child(errxml, "Context");
|
|
if(x != NULL) {
|
|
const char* txt = ncxml_text(x);
|
|
parser->metadata->error.context = (txt == NULL ? NULL : strdup(txt));
|
|
}
|
|
x=ncxml_child(errxml, "OtherInformation");
|
|
if(x != NULL) {
|
|
const char* txt = ncxml_text(x);
|
|
parser->metadata->error.otherinfo = (txt == NULL ? NULL : strdup(txt));
|
|
}
|
|
return THROW(NC_NOERR);
|
|
}
|
|
|
|
/*
|
|
Find or create an opaque type
|
|
*/
|
|
static NCD4node*
|
|
getOpaque(NCD4parser* parser, ncxml_t varxml, NCD4node* group)
|
|
{
|
|
int i, ret = NC_NOERR;
|
|
long long len;
|
|
NCD4node* opaquetype = NULL;
|
|
char* xattr;
|
|
|
|
#ifndef FIXEDOPAQUE
|
|
len = 0;
|
|
#else
|
|
len = parser->metadata->controller->controls.opaquesize;
|
|
#endif
|
|
if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
|
|
/* See if this var has UCARTAGOPAQUE attribute */
|
|
xattr = ncxml_attr(varxml,UCARTAGOPAQUE);
|
|
if(xattr != NULL) {
|
|
long long tmp = 0;
|
|
if((ret = parseLL(xattr,&tmp)) || (tmp < 0))
|
|
FAIL(NC_EINVAL,"Illegal opaque len: %s",xattr);
|
|
len = tmp;
|
|
nullfree(xattr);
|
|
}
|
|
}
|
|
#ifndef FIXEDOPAQUE
|
|
if(len == 0) {
|
|
/* Need to use _bytestring */
|
|
if((ret=defineBytestringType(parser)))
|
|
goto done;
|
|
assert(parser->metadata->_bytestring != NULL);
|
|
opaquetype = parser->metadata->_bytestring;
|
|
} else
|
|
#endif
|
|
{ /*(len > 0) || FIXEDOPAQUE */
|
|
/* Try to locate existing opaque type with this length */
|
|
for(i=0;i<nclistlength(parser->types); i++) {
|
|
NCD4node* op = (NCD4node*)nclistget(parser->types,i);
|
|
if(op->subsort != NC_OPAQUE) continue;
|
|
if(op->opaque.size == len) {opaquetype = op; break;}
|
|
}
|
|
if(opaquetype == NULL) {/* create it */
|
|
char name[NC_MAX_NAME+1];
|
|
/* Make name be "opaqueN" */
|
|
snprintf(name,NC_MAX_NAME,"opaque%lld_t",len);
|
|
/* Opaque types are always created in the current group */
|
|
if((ret=makeNode(parser,group,NULL,NCD4_TYPE,NC_OPAQUE,&opaquetype)))
|
|
goto done;
|
|
SETNAME(opaquetype,name);
|
|
opaquetype->opaque.size = len;
|
|
}
|
|
}
|
|
done:
|
|
return opaquetype;
|
|
}
|
|
|
|
/* get all value strings */
|
|
static int
|
|
getValueStrings(NCD4parser* parser, NCD4node* type, ncxml_t xattr, NClist* svalues)
|
|
{
|
|
char* s;
|
|
/* See first if we have a "value" xml attribute */
|
|
s = ncxml_attr(xattr,"value");
|
|
if(s != NULL)
|
|
{PUSH(svalues,s); s = NULL;}
|
|
else {/* look for <Value> subnodes */
|
|
ncxml_t x;
|
|
for(x=ncxml_child(xattr, "Value");x != NULL;x = ncxml_next(x,"Value")) {
|
|
char* es;
|
|
char* ds;
|
|
/* We assume that either their is a single xml attribute called "value",
|
|
or there is a single chunk of text containing possibly multiple values.
|
|
*/
|
|
s = ncxml_attr(x,"value");
|
|
if(s == NULL) {/* See if there is a text part. */
|
|
s = ncxml_text(x);
|
|
if(s == NULL) s = strdup("");
|
|
}
|
|
/* Need to de-escape the string */
|
|
es = NCD4_entityescape(s);
|
|
ds = NCD4_deescape(es);
|
|
PUSH(svalues,ds); ds = NULL;
|
|
nullfree(es); es = NULL;
|
|
nullfree(s); s = NULL;
|
|
}
|
|
}
|
|
nullfree(s);
|
|
return THROW(NC_NOERR);
|
|
}
|
|
|
|
/***************************************************/
|
|
/* Utilities */
|
|
|
|
NCD4node*
|
|
NCD4_groupFor(NCD4node* node)
|
|
{
|
|
while(node->sort != NCD4_GROUP) node = node->container;
|
|
return node;
|
|
}
|
|
|
|
/* Determine is a name is reserved */
|
|
static int
|
|
isReserved(const char* name)
|
|
{
|
|
if(name == NULL) return 0;
|
|
return (name[0] == RESERVECHAR);
|
|
}
|
|
|
|
/* If a node has the UCARTAGORIGTYPE attribute,
|
|
then capture that annotation. */
|
|
static int
|
|
addOrigType(NCD4parser* parser, NCD4node* src, NCD4node* dst, const char* oldname)
|
|
{
|
|
int ret = NC_NOERR;
|
|
|
|
if(dst == NULL) dst = src;
|
|
/* Record the original type in the destination*/
|
|
if((ret=splitOrigType(parser,oldname,dst))) goto done;
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
splitOrigType(NCD4parser* parser, const char* fqn, NCD4node* type)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NClist* pieces = nclistnew();
|
|
NCD4node* group = NULL;
|
|
char* name = NULL;
|
|
|
|
if((ret=NCD4_parseFQN(fqn,pieces))) goto done;
|
|
/* It should be the case that the pieces are {/group}+/name */
|
|
name = (char*)nclistpop(pieces);
|
|
if((ret = lookupFQNList(parser,pieces,NCD4_GROUP,&group))) goto done;
|
|
if(ret) {
|
|
FAIL(NC_ENOGRP,"Non-existent group in FQN: ",fqn);
|
|
}
|
|
type->nc4.orig.name = strdup(name+1); /* plus 1 to skip the leading separator */
|
|
type->nc4.orig.group = group;
|
|
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
/* Locate an attribute.
|
|
If not found, then *attrp will be null
|
|
*/
|
|
NCD4node*
|
|
NCD4_findAttr(NCD4node* container, const char* attrname)
|
|
{
|
|
int i;
|
|
/* Look directly under this xml for <Attribute> */
|
|
for(i=0;i<nclistlength(container->attributes);i++) {
|
|
NCD4node* attr = (NCD4node*)nclistget(container->attributes,i);
|
|
if(strcmp(attr->name,attrname)!=0) continue;
|
|
return attr;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
Parse a simple string of digits into an unsigned long long
|
|
Return the value.
|
|
*/
|
|
|
|
static int
|
|
parseULL(const char* text, unsigned long long* ullp)
|
|
{
|
|
extern int errno;
|
|
char* endptr;
|
|
unsigned long long uint64 = 0;
|
|
|
|
errno = 0; endptr = NULL;
|
|
#ifdef HAVE_STRTOULL
|
|
uint64 = strtoull(text,&endptr,10);
|
|
if(errno == ERANGE)
|
|
return THROW(NC_ERANGE);
|
|
#else /*!(defined HAVE_STRTOLL && defined HAVE_STRTOULL)*/
|
|
sscanf((char*)text, "%llu", &uint64);
|
|
/* Have no useful way to detect out of range */
|
|
#endif /*!(defined HAVE_STRTOLL && defined HAVE_STRTOULL)*/
|
|
if(ullp) *ullp = uint64;
|
|
return THROW(NC_NOERR);
|
|
}
|
|
|
|
/*
|
|
Parse a simple string of digits into an signed long long
|
|
Return the value.
|
|
*/
|
|
|
|
static int
|
|
parseLL(const char* text, long long* llp)
|
|
{
|
|
extern int errno;
|
|
char* endptr;
|
|
long long int64 = 0;
|
|
|
|
errno = 0; endptr = NULL;
|
|
#ifdef HAVE_STRTOLL
|
|
int64 = strtoll(text,&endptr,10);
|
|
if(errno == ERANGE)
|
|
return THROW(NC_ERANGE);
|
|
#else /*!(defined HAVE_STRTOLL && defined HAVE_STRTOLL)*/
|
|
sscanf((char*)text, "%lld", &int64);
|
|
/* Have no useful way to detect out of range */
|
|
#endif /*!(defined HAVE_STRTOLL && defined HAVE_STRTOLL)*/
|
|
if(llp) *llp = int64;
|
|
return THROW(NC_NOERR);
|
|
}
|
|
|
|
/*
|
|
Convert a sequence of fqn names into a specific node.
|
|
WARNING: This is highly specialized in that it assumes
|
|
that the final object is one of: dimension, type, or var.
|
|
This means that e.g. groups, attributes, econsts, cannot
|
|
be found by this procedure.
|
|
@return NC_NOERR found; result != NULL
|
|
@return NC_EINVAL !found; result == NULL
|
|
*/
|
|
static int
|
|
lookupFQNList(NCD4parser* parser, NClist* fqn, NCD4sort sort, NCD4node** result)
|
|
{
|
|
int ret = NC_NOERR;
|
|
int i,nsteps;
|
|
NCD4node* current;
|
|
char* name = NULL;
|
|
NCD4node* node = NULL;
|
|
|
|
/* Step 1: walk thru groups until can go no further */
|
|
current = parser->metadata->root;
|
|
nsteps = nclistlength(fqn);
|
|
for(i=1;i<nsteps;i++) { /* start at 1 to side-step root name */
|
|
assert(ISGROUP(current->sort));
|
|
name = (char*)nclistget(fqn,i);
|
|
/* See if we can find a matching subgroup */
|
|
node = lookFor(current->group.elements,name,NCD4_GROUP);
|
|
if(node == NULL)
|
|
break; /* reached the end of the group part of the fqn */
|
|
current = node;
|
|
}
|
|
/* Invariant:
|
|
1. i == nsteps => node != null => last node was a group:
|
|
it must be our target
|
|
2. i == (nsteps-1) => non-group node at the end; disambiguate
|
|
3. i < (nsteps - 1) => need a compound var to continue
|
|
*/
|
|
if(i == nsteps) {
|
|
if(sort != NCD4_GROUP) /* Right name, wrong sort */
|
|
goto notfound;
|
|
}
|
|
if(i == (nsteps - 1)) {
|
|
assert (node == NULL);
|
|
node = lookFor(current->group.elements,name,sort);
|
|
if(node == NULL) goto notfound;
|
|
goto done;
|
|
}
|
|
assert (i < (nsteps - 1)); /* case 3 */
|
|
/* We have steps to take, so node better be a compound var */
|
|
node = lookFor(current->group.elements,name,NCD4_VAR);
|
|
if(node == NULL || !ISCMPD(node->basetype->subsort))
|
|
goto notfound;
|
|
/* So we are at a compound variable, so walk its fields recursively */
|
|
/* Use the type to do the walk */
|
|
current = node->basetype;
|
|
assert (i < (nsteps - 1));
|
|
i++; /* skip variable name */
|
|
for(;;i++) {
|
|
int j;
|
|
name = (char*)nclistget(fqn,i);
|
|
assert(ISTYPE(current->sort) && ISCMPD(current->subsort));
|
|
for(node=NULL,j=0;j<nclistlength(current->vars);j++) {
|
|
NCD4node* field = (NCD4node*)nclistget(current->vars,j);
|
|
if(strcmp(field->name,name)==0)
|
|
{node = field; break;}
|
|
}
|
|
if(node == NULL)
|
|
goto notfound; /* no match, so failed */
|
|
if(i == (nsteps - 1))
|
|
break;
|
|
if(!ISCMPD(node->basetype->subsort))
|
|
goto notfound; /* more steps, but no compound field, so failed */
|
|
current = node->basetype;
|
|
}
|
|
done:
|
|
if(result) *result = node;
|
|
return THROW(ret);
|
|
notfound:
|
|
ret = NC_EINVAL;
|
|
goto done;
|
|
}
|
|
|
|
static NCD4node*
|
|
lookFor(NClist* elems, const char* name, NCD4sort sort)
|
|
{
|
|
int n,i;
|
|
if(elems == NULL || nclistlength(elems) == 0) return NULL;
|
|
n = nclistlength(elems);
|
|
for(i=0;i<n;i++) {
|
|
NCD4node* node = (NCD4node*)nclistget(elems,i);
|
|
if(strcmp(node->name,name) == 0 && (sort == node->sort))
|
|
return node;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
NCD4_printElems(NCD4node* group)
|
|
{
|
|
int n,i;
|
|
NClist* elems;
|
|
elems = group->group.elements;
|
|
if(elems == NULL || nclistlength(elems) == 0) return;
|
|
n = nclistlength(elems);
|
|
for(i=0;i<n;i++) {
|
|
NCD4node* node = (NCD4node*)nclistget(elems,i);
|
|
fprintf(stderr,"name=%s sort=%d subsort=%d\n",
|
|
node->name,node->sort,node->subsort);
|
|
}
|
|
fflush(stderr);
|
|
}
|
|
|
|
static NCD4node*
|
|
lookupFQN(NCD4parser* parser, const char* sfqn, NCD4sort sort)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NClist* fqnlist = nclistnew();
|
|
NCD4node* match = NULL;
|
|
|
|
/* Short circuit atomic types */
|
|
if(NCD4_TYPE == sort) {
|
|
match = lookupAtomicType(parser->metadata->atomictypes,(sfqn[0]=='/'?sfqn+1:sfqn));
|
|
if(match != NULL)
|
|
goto done;
|
|
}
|
|
if((ret=NCD4_parseFQN(sfqn,fqnlist))) goto done;
|
|
if((ret=lookupFQNList(parser,fqnlist,sort,&match))) goto done;
|
|
done:
|
|
nclistfreeall(fqnlist);
|
|
return (ret == NC_NOERR ? match : NULL);
|
|
}
|
|
|
|
static const KEYWORDINFO*
|
|
keyword(const char* name)
|
|
{
|
|
int n = sizeof(keywordmap)/sizeof(KEYWORDINFO);
|
|
int L = 0;
|
|
int R = (n - 1);
|
|
int m, cmp;
|
|
const struct KEYWORDINFO* p;
|
|
for(;;) {
|
|
if(L > R) break;
|
|
m = (L + R) / 2;
|
|
p = &keywordmap[m];
|
|
cmp = strcasecmp(p->tag,name);
|
|
if(cmp == 0) return p;
|
|
if(cmp < 0)
|
|
L = (m + 1);
|
|
else /*cmp > 0*/
|
|
R = (m - 1);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#ifndef FIXEDOPAQUE
|
|
static int
|
|
defineBytestringType(NCD4parser* parser)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* bstring = NULL;
|
|
if(parser->metadata->_bytestring == NULL) {
|
|
/* Construct a single global opaque type for mapping DAP opaque type */
|
|
ret = makeNode(parser,parser->metadata->root,NULL,NCD4_TYPE,NC_OPAQUE,&bstring);
|
|
if(ret != NC_NOERR) goto done;
|
|
SETNAME(bstring,"_bytestring");
|
|
bstring->opaque.size = 0;
|
|
bstring->basetype = lookupAtomicType(parser,"UInt8");
|
|
PUSH(parser->metadata->root->types,bstring);
|
|
parser->metadata->_bytestring = bstring;
|
|
} else
|
|
bstring = parser->metadata->_bytestring;
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
defineAtomicTypes(NCD4meta* meta, NClist* list)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* node;
|
|
const struct ATOMICTYPEINFO* ati;
|
|
|
|
if(list == NULL)
|
|
return THROW(NC_EINTERNAL);
|
|
for(ati=atomictypeinfo;ati->name;ati++) {
|
|
if((ret=makeNodeStatic(meta,NULL,NCD4_TYPE,ati->type,&node))) goto done;
|
|
SETNAME(node,ati->name);
|
|
PUSH(list,node);
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
/* Binary search the set of set of atomictypes */
|
|
static NCD4node*
|
|
lookupAtomicType(NClist* atomictypes, const char* name)
|
|
{
|
|
int n = nclistlength(atomictypes);
|
|
int L = 0;
|
|
int R = (n - 1);
|
|
int m, cmp;
|
|
NCD4node* p;
|
|
|
|
for(;;) {
|
|
if(L > R) break;
|
|
m = (L + R) / 2;
|
|
p = (NCD4node*)nclistget(atomictypes,m);
|
|
cmp = strcasecmp(p->name,name);
|
|
if(cmp == 0)
|
|
return p;
|
|
if(cmp < 0)
|
|
L = (m + 1);
|
|
else /*cmp > 0*/
|
|
R = (m - 1);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**************************************************/
|
|
|
|
static int
|
|
makeNode(NCD4parser* parser, NCD4node* parent, ncxml_t xml, NCD4sort sort, nc_type subsort, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* node = NULL;
|
|
|
|
assert(parser);
|
|
if((ret = makeNodeStatic(parser->metadata,parent,sort,subsort,&node))) goto done;
|
|
|
|
/* Set node name, if it exists */
|
|
if(xml != NULL) {
|
|
char* name = ncxml_attr(xml,"name");
|
|
if(name != NULL) {
|
|
if(strlen(name) > NC_MAX_NAME) {
|
|
nclog(NCLOGERR,"Name too long: %s",name);
|
|
}
|
|
SETNAME(node,name);
|
|
nullfree(name);
|
|
}
|
|
}
|
|
record(parser,node);
|
|
if(nodep) *nodep = node;
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
makeNodeStatic(NCD4meta* meta, NCD4node* parent, NCD4sort sort, nc_type subsort, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* node = (NCD4node*)calloc(1,sizeof(NCD4node));
|
|
|
|
assert(meta);
|
|
if(node == NULL) return THROW(NC_ENOMEM);
|
|
node->sort = sort;
|
|
node->subsort = subsort;
|
|
node->container = parent;
|
|
#if 0
|
|
if(parent != NULL) {
|
|
if(parent->sort == NCD4_GROUP)
|
|
classify(parent,node);
|
|
}
|
|
#endif
|
|
track(meta,node);
|
|
if(nodep) *nodep = node;
|
|
return THROW(ret);
|
|
}
|
|
|
|
static NCD4node*
|
|
makeAnonDim(NCD4parser* parser, const char* sizestr)
|
|
{
|
|
long long size = 0;
|
|
int ret;
|
|
char name[NC_MAX_NAME+1];
|
|
NCD4node* dim = NULL;
|
|
NCD4node* root = parser->metadata->root;
|
|
|
|
ret = parseLL(sizestr,&size);
|
|
if(ret) return NULL;
|
|
snprintf(name,NC_MAX_NAME,"/_Anonymous%lld",size);
|
|
/* See if it exists already */
|
|
dim = lookupFQN(parser,name,NCD4_DIM);
|
|
if(dim == NULL) {/* create it */
|
|
if((ret=makeNode(parser,root,NULL,NCD4_DIM,NC_NULL,&dim))) goto done;
|
|
SETNAME(dim,name+1); /* leave out the '/' separator */
|
|
dim->dim.size = (long long)size;
|
|
dim->dim.isanonymous = 1;
|
|
classify(root,dim);
|
|
}
|
|
done:
|
|
return (ret?NULL:dim);
|
|
}
|
|
|
|
/*
|
|
Classify inserts the node into the proper container list
|
|
based on the node's sort.
|
|
*/
|
|
static void
|
|
classify(NCD4node* container, NCD4node* node)
|
|
{
|
|
if(ISGROUP(container->sort))
|
|
PUSH(container->group.elements,node);
|
|
switch (node->sort) {
|
|
case NCD4_GROUP:
|
|
PUSH(container->groups,node);
|
|
break;
|
|
case NCD4_DIM:
|
|
PUSH(container->dims,node);
|
|
break;
|
|
case NCD4_TYPE:
|
|
PUSH(container->types,node);
|
|
break;
|
|
case NCD4_VAR:
|
|
PUSH(container->vars,node);
|
|
break;
|
|
case NCD4_ATTR: case NCD4_XML:
|
|
PUSH(container->attributes,node);
|
|
break;
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
Classify inserts the node into the proper parser global list
|
|
based on the node's sort.
|
|
*/
|
|
static void
|
|
record(NCD4parser* parser, NCD4node* node)
|
|
{
|
|
switch (node->sort) {
|
|
case NCD4_GROUP:
|
|
PUSH(parser->groups,node);
|
|
break;
|
|
case NCD4_DIM:
|
|
PUSH(parser->dims,node);
|
|
break;
|
|
case NCD4_TYPE:
|
|
PUSH(parser->types,node);
|
|
break;
|
|
case NCD4_VAR:
|
|
PUSH(parser->vars,node);
|
|
break;
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
Undo a classify and record
|
|
for a field node.
|
|
Used by buildSequenceType.
|
|
*/
|
|
#if 0
|
|
static void
|
|
forget(NCD4parser* parser, NCD4node* var)
|
|
{
|
|
int i;
|
|
NCD4node* container = var->container;
|
|
assert(ISVAR(var->sort) && ISTYPE(container->sort) && ISCMPD(container->subsort));
|
|
/* Unrecord: remove from the parser lists */
|
|
for(i=0;i<parser->vars;i++) {
|
|
NCD4node* test = nclistget(parser->vars,i);
|
|
if(test == var) {
|
|
nclistremove(parser->vars,i);
|
|
break;
|
|
}
|
|
}
|
|
/* Unclassify: remove from the container var list */
|
|
for(i=0;i<container->vars;i++) {
|
|
NCD4node* test = nclistget(container->vars,i);
|
|
if(test == var) {
|
|
nclistremove(container->vars,i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
track(NCD4meta* meta, NCD4node* node)
|
|
{
|
|
#ifdef D4DEBUG
|
|
fprintf(stderr,"track: node=%lx sort=%d subsort=%d",(unsigned long)node,node->sort,node->subsort);
|
|
if(node->name != NULL)
|
|
fprintf(stderr," name=%s\n",node->name);
|
|
fprintf(stderr,"\n");
|
|
#endif
|
|
PUSH(meta->allnodes,node);
|
|
#ifdef D4DEBUG
|
|
fprintf(stderr,"track: |allnodes|=%ld\n",nclistlength(meta->allnodes));
|
|
fflush(stderr);
|
|
#endif
|
|
}
|
|
|
|
/**************************************************/
|
|
|
|
static int
|
|
convertString(union ATOMICS* converter, NCD4node* type, const char* s)
|
|
{
|
|
switch (type->subsort) {
|
|
case NC_BYTE:
|
|
case NC_SHORT:
|
|
case NC_INT:
|
|
case NC_INT64:
|
|
if(sscanf(s,"%lld",converter->i64) != 1) return THROW(NC_ERANGE);
|
|
break;
|
|
case NC_UBYTE:
|
|
case NC_USHORT:
|
|
case NC_UINT:
|
|
case NC_UINT64:
|
|
if(sscanf(s,"%llu",converter->u64) != 1) return THROW(NC_ERANGE);
|
|
break;
|
|
case NC_FLOAT:
|
|
case NC_DOUBLE:
|
|
if(sscanf(s,"%lf",converter->f64) != 1) return THROW(NC_ERANGE);
|
|
break;
|
|
case NC_STRING:
|
|
converter->s[0]= strdup(s);
|
|
break;
|
|
}/*switch*/
|
|
return downConvert(converter,type);
|
|
}
|
|
|
|
static int
|
|
downConvert(union ATOMICS* converter, NCD4node* type)
|
|
{
|
|
unsigned long long u64 = converter->u64[0];
|
|
long long i64 = converter->i64[0];
|
|
double f64 = converter->f64[0];
|
|
char* s = converter->s[0];
|
|
switch (type->subsort) {
|
|
case NC_BYTE:
|
|
converter->i8[0] = (char)i64;
|
|
break;
|
|
case NC_UBYTE:
|
|
converter->u8[0] = (unsigned char)u64;
|
|
break;
|
|
case NC_SHORT:
|
|
converter->i16[0] = (short)i64;
|
|
break;
|
|
case NC_USHORT:
|
|
converter->u16[0] = (unsigned short)u64;
|
|
break;
|
|
case NC_INT:
|
|
converter->i32[0] = (int)i64;
|
|
break;
|
|
case NC_UINT:
|
|
converter->u32[0] = (unsigned int)u64;
|
|
break;
|
|
case NC_INT64:
|
|
converter->i64[0] = i64;
|
|
break;
|
|
case NC_UINT64:
|
|
converter->u64[0]= u64;
|
|
break;
|
|
case NC_FLOAT:
|
|
converter->f32[0] = (float)f64;
|
|
break;
|
|
case NC_DOUBLE:
|
|
converter->f64[0] = f64;
|
|
break;
|
|
case NC_STRING:
|
|
converter->s[0]= s;
|
|
break;
|
|
}/*switch*/
|
|
return THROW(NC_NOERR);
|
|
}
|
|
|
|
#if 0
|
|
/* Try to remove excess text from a value set */
|
|
static int
|
|
valueParse(NCD4node* type, const char* values0, NClist* vlist)
|
|
{
|
|
char* values;
|
|
char* p;
|
|
char* q;
|
|
char* s;
|
|
char* line;
|
|
ptrdiff_t len;
|
|
|
|
if(values0 == NULL || (len=strlen(values0)) == 0)
|
|
return THROW(NC_NOERR);
|
|
values = strdup(values0);
|
|
/* Compress the text by removing sequences of blanks and newlines:
|
|
note that this will fail for string typed values that might have
|
|
embedded blanks, so in that case, we assume each string is on a separate line.
|
|
For NC_CHAR, we treat like strings, except we use the last char in the line
|
|
as the value. This is all heuristic.
|
|
*/
|
|
switch (type->subsort) {
|
|
case NC_STRING:
|
|
p = values;
|
|
for(;;) {
|
|
if(*p == '\0') break;
|
|
line = p;
|
|
/* Start by looking for \n or \r\n */
|
|
for(;*p;p++) {if(*p == '\n') break;}
|
|
q = p - 1;
|
|
*p++ = '\0';
|
|
if(*q == '\r') {*q = '\0';}
|
|
PUSH(vlist,strdup(line));
|
|
}
|
|
break;
|
|
case NC_CHAR:
|
|
p = values;
|
|
for(;*p;) {
|
|
char c[2];
|
|
line = p;
|
|
/* Start by looking for \n or \r\n */
|
|
for(;*p;p++) {if(*p == '\n') break;}
|
|
q = p;
|
|
*p++ = '\0';
|
|
q--;
|
|
if(*q == '\r') {*q = '\0';}
|
|
len = strlen(line);
|
|
if(len > 0) {
|
|
c[0] = *q;
|
|
c[1] = '\0';
|
|
PUSH(vlist,strdup(c));
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
p = values;
|
|
for(;*p;p++) {if(*p <= ' ') *p = '\n';}
|
|
line = values;
|
|
for(p=line;*p;p++) {if(*p == '\n') break;}
|
|
for(line=values;*line;) {
|
|
size_t size = strlen(line);
|
|
if(size > 0)
|
|
PUSH(vlist,strdup(line));
|
|
line += (size+1); /* skip terminating nul */
|
|
}
|
|
break;
|
|
}
|
|
free(values);
|
|
return THROW(NC_NOERR);
|
|
}
|
|
#endif
|
|
|
|
/* Define extra attributes not present in the xml */
|
|
int
|
|
NCD4_defineattr(NCD4meta* meta, NCD4node* parent, const char* aname, const char* typename, NCD4node** attrp)
|
|
{
|
|
NCD4node* attr = NULL;
|
|
NCD4node* basetype = NULL;
|
|
if((basetype = lookupAtomicType(meta->atomictypes,typename))==NULL)
|
|
return NC_EINVAL;
|
|
if(makeNode(NULL,parent,NULL,NCD4_ATTR,NC_NULL,&attr))
|
|
return NC_EINVAL;
|
|
SETNAME(attr,strdup(aname));
|
|
attr->basetype = basetype;
|
|
PUSH(parent->attributes,attr);
|
|
if(attrp) *attrp = attr;
|
|
return NC_NOERR;
|
|
}
|
|
|
|
/*
|
|
Fill in forward references for selected Node:
|
|
1. <Map>
|
|
*/
|
|
static int
|
|
parseForwards(NCD4parser* parser, NCD4node* root)
|
|
{
|
|
int ret = NC_NOERR;
|
|
int i,j;
|
|
|
|
/* process all vars */
|
|
for(i=0;i<nclistlength(parser->vars);i++) {
|
|
NCD4node* var = (NCD4node*)nclistget(parser->vars,i);
|
|
/* Process the variable's maps */
|
|
for(j=0;j<nclistlength(var->mapnames);j++) {
|
|
const char* mapname = (const char*)nclistget(var->mapnames,j);
|
|
/* Find the corresponding variable */
|
|
NCD4node* mapref = lookupFQN(parser,mapname,NCD4_VAR);
|
|
if(mapref == NULL)
|
|
FAIL(NC_ENOTVAR,"<Map> name does not refer to a variable: %s",mapname);
|
|
PUSH(var->maps,mapref);
|
|
}
|
|
}
|
|
|
|
done:
|
|
return THROW(ret);
|
|
}
|