mirror of
https://github.com/Unidata/netcdf-c.git
synced 2025-01-12 15:45:21 +08:00
65414eeaa4
re: Partly addresses issue https://github.com/Unidata/netcdf-c/issues/1712. 1. Turn on Hyrax Hack to accept Hyrax style attribute containers. 2. Support Url type as alias for String. 3. Accept the special attribute, "__DAP4_Checksum_CRC32", to control per-variable checksums. 4. Make _DAP4_xxx attributes be reserved and only accessible by name (ala _SuperBlock attribute). 5. Fix handling of checksums. There is a hack in the code that uses an extra flag in the chunk header to indicate that all variables have checksums. This violates the spec and will be removed once it is possible to regenerate the test cases. Note that checksumming with the Hyrax test server has not been tested. This, along with some other probable inconsistencies, needs fixing when OPeNDAP and Unidata can agree on the proper specification. Testing will be included.
1550 lines
44 KiB
C
1550 lines
44 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 "ezxml.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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extern const char** ezxml_all_attr(ezxml_t xml, int* countp);
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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(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, ezxml_t xml);
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static NCD4node* getOpaque(NCD4parser*, ezxml_t varxml, NCD4node* group);
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static int getValueStrings(NCD4parser*, NCD4node*, ezxml_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, ezxml_t, NCD4sort, nc_type, NCD4node**);
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static int parseAtomicVar(NCD4parser*, NCD4node* container, ezxml_t xml, NCD4node**);
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static int parseAttributes(NCD4parser*, NCD4node* container, ezxml_t xml);
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static int parseDimensions(NCD4parser*, NCD4node* group, ezxml_t xml);
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static int parseDimRefs(NCD4parser*, NCD4node* var, ezxml_t xml);
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static int parseEconsts(NCD4parser*, NCD4node* en, ezxml_t xml);
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static int parseEnumerations(NCD4parser*, NCD4node* group, ezxml_t dom);
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static int parseFields(NCD4parser*, NCD4node* container, ezxml_t xml);
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static int parseError(NCD4parser*, ezxml_t errxml);
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static int parseGroups(NCD4parser*, NCD4node* group, ezxml_t dom);
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static int parseMaps(NCD4parser*, NCD4node* var, ezxml_t xml);
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static int parseMetaData(NCD4parser*, NCD4node* node, ezxml_t xml);
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static int parseStructure(NCD4parser*, NCD4node* container, ezxml_t dom, NCD4node**);
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static int parseSequence(NCD4parser*, NCD4node* container, ezxml_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, ezxml_t xml);
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static int parseVariable(NCD4parser*, NCD4node* group, ezxml_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(NCD4parser*, NCD4node* node);
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static int traverse(NCD4parser*, ezxml_t dom);
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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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int ilen;
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ezxml_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->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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ilen = strlen(parser->metadata->serial.dmr);
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dom = ezxml_parse_str(parser->metadata->serial.dmr,ilen);
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if(dom == NULL) {ret=NC_ENOMEM; goto done;}
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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 */
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ret = traverse(parser,dom);
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done:
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if(dom != NULL)
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ezxml_free(dom);
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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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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, ezxml_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(dom->name,"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(dom->name,"Dataset")==0) {
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const 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 = ezxml_attr(dom,"name");
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if(xattr != NULL) parser->metadata->root->group.datasetname = strdup(xattr);
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xattr = ezxml_attr(dom,"dapVersion");
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if(xattr != NULL) parser->metadata->root->group.dapversion = strdup(xattr);
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xattr = ezxml_attr(dom,"dmrVersion");
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if(xattr != NULL) parser->metadata->root->group.dmrversion = strdup(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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} else
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FAIL(NC_EINVAL,"Unexpected dom root name: %s",dom->name);
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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, ezxml_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, ezxml_t xml)
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{
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int ret = NC_NOERR;
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ezxml_t x;
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for(x=ezxml_child(xml, "Dimension");x != NULL;x = ezxml_next(x)) {
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NCD4node* dimnode = NULL;
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unsigned long long size;
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const char* sizestr;
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const char* unlimstr;
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sizestr = ezxml_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 = ezxml_attr(x,UCARTAGUNLIM);
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if((ret = parseULL(sizestr,&size))) goto done;
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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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/* 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, ezxml_t xml)
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{
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int ret = NC_NOERR;
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ezxml_t x;
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for(x=ezxml_child(xml, "Enumeration");x != NULL;x = ezxml_next(x)) {
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NCD4node* node = NULL;
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NCD4node* basetype = NULL;
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const char* fqn = ezxml_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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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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const char* typetag = ezxml_attr(x,UCARTAGORIGTYPE);
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if(typetag != NULL) {
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}
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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, ezxml_t xml)
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{
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int ret = NC_NOERR;
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ezxml_t x;
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NClist* econsts = nclistnew();
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for(x=ezxml_child(xml, "EnumConst");x != NULL;x = ezxml_next(x)) {
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NCD4node* ec = NULL;
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const char* name;
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const char* svalue;
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name = ezxml_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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svalue = ezxml_attr(x,"value");
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if(svalue == NULL)
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FAIL(NC_EINVAL,"Enumeration Constant has no value");
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if((ret=convertString(&ec->en.ecvalue,en->basetype,svalue)))
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FAIL(NC_EINVAL,"Non-numeric Enumeration Constant: %s->%s",ec->name,svalue);
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PUSH(econsts,ec);
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}
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en->en.econsts = econsts;
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done:
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return THROW(ret);
|
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}
|
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|
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static int
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parseVariables(NCD4parser* parser, NCD4node* group, ezxml_t xml)
|
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{
|
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int ret = NC_NOERR;
|
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ezxml_t x;
|
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for(x=xml->child;x != NULL;x=x->ordered) {
|
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NCD4node* node = NULL;
|
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const KEYWORDINFO* info = keyword(x->name);
|
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if(info == NULL)
|
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FAIL(NC_ETRANSLATION,"Unexpected node type: %s",x->name);
|
|
/* Check if we need to process this node */
|
|
if(!ISVAR(info->sort)) continue; /* Handle elsewhere */
|
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node = NULL;
|
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ret = parseVariable(parser,group,x,&node);
|
|
if(ret != NC_NOERR || node == NULL) break;
|
|
}
|
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done:
|
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return THROW(ret);
|
|
}
|
|
|
|
static int
|
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parseVariable(NCD4parser* parser, NCD4node* container, ezxml_t xml, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* node = NULL;
|
|
const KEYWORDINFO* info = keyword(xml->name);
|
|
|
|
switch (info->subsort) {
|
|
case NC_STRUCT:
|
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ret = parseStructure(parser,container,xml,&node);
|
|
break;
|
|
case NC_SEQ:
|
|
ret = parseSequence(parser,container,xml,&node);
|
|
break;
|
|
default:
|
|
ret = parseAtomicVar(parser,container,xml,&node);
|
|
}
|
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*nodep = node;
|
|
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseMetaData(NCD4parser* parser, NCD4node* container, ezxml_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, ezxml_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;
|
|
|
|
record(parser,var);
|
|
|
|
/* See if this var has UCARTAGORIGTYPE attribute */
|
|
if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
|
|
const char* typetag = ezxml_attr(xml,UCARTAGORIGTYPE);
|
|
if(typetag != NULL) {
|
|
/* yes, place it on the type */
|
|
if((ret=addOrigType(parser,var,type,typetag))) goto done;
|
|
}
|
|
}
|
|
|
|
if(nodep) *nodep = var;
|
|
|
|
done:
|
|
nullfree(fqnname);
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseFields(NCD4parser* parser, NCD4node* container, ezxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ezxml_t x;
|
|
for(x=xml->child;x != NULL;x=x->ordered) {
|
|
NCD4node* node = NULL;
|
|
const KEYWORDINFO* info = keyword(x->name);
|
|
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, ezxml_t xml, NCD4node** fieldp)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* field = NULL;
|
|
ezxml_t x;
|
|
for(x=xml->child;x != NULL;x=x->ordered) {
|
|
const KEYWORDINFO* info = keyword(x->name);
|
|
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, ezxml_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) {
|
|
const char* vlentag = ezxml_attr(xml,UCARTAGVLEN);
|
|
if(vlentag != NULL)
|
|
usevlen = 1;
|
|
} 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));
|
|
strncat(name,"_t", sizeof(name) - strlen(name) - 1);
|
|
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));
|
|
strncat(name,"_base", sizeof(name) - strlen(name) - 1);
|
|
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));
|
|
strncat(name,"_t", sizeof(name) - strlen(name) - 1);
|
|
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;
|
|
|
|
record(parser,var);
|
|
|
|
/* See if this var has UCARTAGORIGTYPE attribute */
|
|
if(parser->metadata->controller->controls.translation == NCD4_TRANSNC4) {
|
|
const char* typetag = ezxml_attr(xml,UCARTAGORIGTYPE);
|
|
if(typetag != NULL) {
|
|
/* yes, place it on the type */
|
|
if((ret=addOrigType(parser,var,vlentype,typetag))) goto done;
|
|
}
|
|
}
|
|
if(nodep) *nodep = var;
|
|
|
|
done:
|
|
if(fqnname) free(fqnname);
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseGroups(NCD4parser* parser, NCD4node* parent, ezxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ezxml_t x;
|
|
for(x=ezxml_child(xml, "Group");x != NULL;x = ezxml_next(x)) {
|
|
NCD4node* group = NULL;
|
|
const char* name = ezxml_attr(x,"name");
|
|
if(name == NULL) FAIL(NC_EBADNAME,"Group has no name");
|
|
if((ret=makeNode(parser,parent,x,NCD4_GROUP,NC_NULL,&group))) goto done;
|
|
group->group.varbyid = nclistnew();
|
|
if((ret = fillgroup(parser,group,x))) goto done;
|
|
/* Parse group attributes */
|
|
if((ret = parseAttributes(parser,group,x))) goto done;
|
|
PUSH(parent->groups,group);
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseAtomicVar(NCD4parser* parser, NCD4node* container, ezxml_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=xml->name;;) {
|
|
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) {
|
|
const char* enumfqn = ezxml_attr(xml,"enum");
|
|
if(enumfqn == NULL)
|
|
base = NULL;
|
|
else
|
|
base = lookupFQN(parser,enumfqn,NCD4_TYPE);
|
|
} 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) {
|
|
const char* typetag = ezxml_attr(xml,UCARTAGORIGTYPE);
|
|
if(typetag != NULL) {
|
|
/* yes, place it on the type */
|
|
if((ret=addOrigType(parser,node,node,typetag))) goto done;
|
|
}
|
|
}
|
|
if(nodep) *nodep = node;
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseDimRefs(NCD4parser* parser, NCD4node* var, ezxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ezxml_t x;
|
|
for(x=ezxml_child(xml, "Dim");x!= NULL;x=ezxml_next(x)) {
|
|
NCD4node* dim = NULL;
|
|
const char* fqn;
|
|
|
|
fqn = ezxml_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);
|
|
}
|
|
} else {
|
|
const char* sizestr = ezxml_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);
|
|
}
|
|
PUSH(var->dims,dim);
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseMaps(NCD4parser* parser, NCD4node* var, ezxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ezxml_t x;
|
|
|
|
for(x=ezxml_child(xml, "Map");x!= NULL;x=ezxml_next(x)) {
|
|
NCD4node* mapref = NULL;
|
|
const char* fqn;
|
|
fqn = ezxml_attr(x,"name");
|
|
if(fqn == NULL)
|
|
FAIL(NC_ENOTVAR,"<Map> has no name attribute");
|
|
mapref = lookupFQN(parser,fqn,NCD4_VAR);
|
|
if(mapref == NULL)
|
|
FAIL(NC_ENOTVAR,"<Map> name does not refer to a variable: %s",fqn);
|
|
PUSH(var->maps,mapref);
|
|
}
|
|
done:
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseAttributes(NCD4parser* parser, NCD4node* container, ezxml_t xml)
|
|
{
|
|
int ret = NC_NOERR;
|
|
ezxml_t x;
|
|
NClist* values = NULL;
|
|
|
|
/* First, transfer any reserved xml attributes */
|
|
{
|
|
int count = 0;
|
|
const char** all = NULL;
|
|
all = ezxml_all_attr(xml,&count);
|
|
if(all != NULL && count > 0) {
|
|
const char** p;
|
|
container->xmlattributes = nclistnew();
|
|
for(p=all;*p;p+=2) {
|
|
if(isReserved(*p)) {
|
|
nclistpush(container->xmlattributes,strdup(p[0]));
|
|
nclistpush(container->xmlattributes,strdup(p[1]));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for(x=ezxml_child(xml, "Attribute");x!= NULL;x=ezxml_next(x)) {
|
|
const char* name = ezxml_attr(x,"name");
|
|
const char* type = ezxml_attr(x,"type");
|
|
NCD4node* attr = NULL;
|
|
NCD4node* basetype;
|
|
|
|
if(name == NULL) FAIL(NC_EBADNAME,"Missing <Attribute> name");
|
|
#ifdef HYRAXHACK
|
|
/* Hyrax specifies type="container" for container types */
|
|
if(strcmp(type,"container")==0
|
|
|| strcmp(type,"Container")==0)
|
|
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);
|
|
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(ret != NC_NOERR) {
|
|
nclistfreeall(values);
|
|
}
|
|
return THROW(ret);
|
|
}
|
|
|
|
static int
|
|
parseError(NCD4parser* parser, ezxml_t errxml)
|
|
{
|
|
const char* shttpcode = ezxml_attr(errxml,"httpcode");
|
|
ezxml_t x;
|
|
if(shttpcode == NULL) shttpcode = "400";
|
|
if(sscanf(shttpcode,"%d",&parser->metadata->error.httpcode) != 1)
|
|
nclog(NCLOGERR,"Malformed <ERROR> response");
|
|
x=ezxml_child(errxml, "Message");
|
|
if(x != NULL) {
|
|
const char* txt = ezxml_txt(x);
|
|
parser->metadata->error.message = (txt == NULL ? NULL : strdup(txt));
|
|
}
|
|
x=ezxml_child(errxml, "Context");
|
|
if(x != NULL) {
|
|
const char* txt = ezxml_txt(x);
|
|
parser->metadata->error.context = (txt == NULL ? NULL : strdup(txt));
|
|
}
|
|
x=ezxml_child(errxml, "OtherInformation");
|
|
if(x != NULL) {
|
|
const char* txt = ezxml_txt(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, ezxml_t varxml, NCD4node* group)
|
|
{
|
|
int i, ret = NC_NOERR;
|
|
long long len;
|
|
NCD4node* opaquetype = NULL;
|
|
const 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 = ezxml_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;
|
|
}
|
|
}
|
|
#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;
|
|
if(opaquetype != NULL)
|
|
record(parser,opaquetype);
|
|
}
|
|
}
|
|
done:
|
|
return opaquetype;
|
|
}
|
|
|
|
/* get all value strings */
|
|
static int
|
|
getValueStrings(NCD4parser* parser, NCD4node* type, ezxml_t xattr, NClist* svalues)
|
|
{
|
|
const char* s;
|
|
/* See first if we have a "value" xml attribute */
|
|
s = ezxml_attr(xattr,"value");
|
|
if(s != NULL)
|
|
PUSH(svalues,strdup(s));
|
|
else {/* look for <Value> subnodes */
|
|
ezxml_t x;
|
|
for(x=ezxml_child(xattr, "Value");x != NULL;x = ezxml_next(x)) {
|
|
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 = ezxml_attr(x,"value");
|
|
if(s == NULL) {/* See if there is a text part. */
|
|
s = x->txt;
|
|
if(s == NULL) s = "";
|
|
}
|
|
/* Need to de-escape the string */
|
|
es = NCD4_entityescape(s);
|
|
ds = NCD4_deescape(es);
|
|
nclistpush(svalues,ds);
|
|
nullfree(es);
|
|
}
|
|
}
|
|
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(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=makeNode(NULL,NULL,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, ezxml_t xml, NCD4sort sort, nc_type subsort, NCD4node** nodep)
|
|
{
|
|
int ret = NC_NOERR;
|
|
NCD4node* node = (NCD4node*)calloc(1,sizeof(NCD4node));
|
|
|
|
if(node == NULL) return THROW(NC_ENOMEM);
|
|
node->sort = sort;
|
|
node->subsort = subsort;
|
|
node->container = parent;
|
|
/* Set node name, if it exists */
|
|
if(xml != NULL) {
|
|
const char* name = ezxml_attr(xml,"name");
|
|
if(name != NULL) {
|
|
if(strlen(name) > NC_MAX_NAME) {
|
|
nclog(NCLOGERR,"Name too long: %s",name);
|
|
}
|
|
SETNAME(node,name);
|
|
}
|
|
}
|
|
if(parent != NULL) {
|
|
if(parent->sort == NCD4_GROUP)
|
|
PUSH(parent->group.elements,node);
|
|
}
|
|
if(parser) track(parser,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;
|
|
PUSH(root->dims,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))
|
|
nclistpush(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(NCD4parser* parser, 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(parser->metadata->allnodes,node);
|
|
#ifdef D4DEBUG
|
|
fprintf(stderr,"track: |allnodes|=%ld\n",nclistlength(parser->metadata->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';}
|
|
nclistpush(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';
|
|
nclistpush(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)
|
|
nclistpush(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;
|
|
}
|