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libcm/cmJson.c

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#include "cmPrefix.h"
#include "cmGlobal.h"
#include "cmFloatTypes.h"
#include "cmRpt.h"
#include "cmErr.h"
#include "cmCtx.h"
#include "cmJson.h"
#include "cmMem.h"
#include "cmMallocDebug.h"
#include "cmLex.h"
#include "cmLinkedHeap.h"
#include "cmFile.h"
enum
{
kLCurlyLexTId = kUserLexTId+1,
kRCurlyLexTId,
kLHardLexTId,
kRHardLexTId,
kColonLexTId,
kCommaLexTId,
kTrueLexTId,
kFalseLexTId,
kNullLexTId
};
typedef struct
{
unsigned id;
const char* text;
} cmJsToken_t;
// serialization buffer header
typedef struct
{
unsigned id; // always set to 'json'
unsigned byteCnt; // count of bytes following this field (total buf bytes = byteCnt + (2*sizeof(unsigned)))
unsigned nodeCnt; // count of nodes in this buffer
unsigned version; // buffer serialization version number
} cmJsSerialHdr_t;
// serialization helper record
typedef struct
{
cmJsSerialHdr_t hdr;
char* basePtr;
char* nextPtr;
char* endPtr;
} cmJsSerial_t;
// deserialization helper record
typedef struct
{
unsigned nodeCnt;
unsigned nodeIdx;
const char* nextPtr;
const char* endPtr;
} cmJsDeserial_t;
typedef struct
{
cmErr_t err; //
cmLexH lexH; // parsing lexer
cmLHeapH_t heapH; // linked heap stores all node memory
cmJsonNode_t* rootPtr; // root of internal node tree
cmJsonNode_t* basePtr; // base of parsing stack
cmJsonNode_t* lastPtr; // top of parsing stack
cmJsRC_t rc; // last error code
char* serialBufPtr; // serial buffer pointer
unsigned serialByteCnt; // count of bytes in serialBuf[]
bool reportErrPosnFl;// report the file posn of syntax errors
bool modifiedFl; // the tree has been modified since it was created.
} cmJs_t;
cmJsToken_t _cmJsTokenArray[] =
{
{ kLCurlyLexTId, "{" },
{ kRCurlyLexTId, "}" },
{ kLHardLexTId, "[" },
{ kRHardLexTId, "]" },
{ kColonLexTId, ":" },
{ kCommaLexTId, "," },
{ kTrueLexTId, "true"},
{ kFalseLexTId, "false"},
{ kNullLexTId, "null" },
{ kErrorLexTId,""}
};
cmJsToken_t _cmJsNodeTypeLabel[] =
{
{ kObjectTId, "object" },
{ kPairTId, "pair" },
{ kArrayTId, "array" },
{ kStringTId, "string" },
{ kIntTId, "int" },
{ kRealTId, "real" },
{ kNullTId, "null" },
{ kTrueTId, "true" },
{ kFalseTId, "false" },
{ kInvalidTId,"invalid"}
};
cmJsonH_t cmJsonNullHandle = cmSTATIC_NULL_HANDLE;
cmJsRC_t _cmJsonRemoveNode( cmJs_t* p, cmJsonNode_t* np, bool freeFl, bool balancePairsFl );
void _cmJsonFreeNode( cmJs_t* p, cmJsonNode_t* np);
const char* _cmJsonNodeTypeIdToLabel( unsigned nodeTypeId )
{
unsigned i;
for(i=0; _cmJsNodeTypeLabel[i].id != kInvalidTId; ++i)
if( _cmJsNodeTypeLabel[i].id == nodeTypeId )
break;
return _cmJsNodeTypeLabel[i].text;
}
unsigned _cmJsonNodeTypeLabelToId( const char* typeLabel )
{
unsigned i;
for(i=0; _cmJsNodeTypeLabel[i].id != kInvalidTId; ++i)
if( strcmp(_cmJsNodeTypeLabel[i].text,typeLabel) == 0 )
break;
return _cmJsNodeTypeLabel[i].id;
}
cmJs_t* _cmJsonHandleToPtr( cmJsonH_t h )
{
cmJs_t* p = (cmJs_t*)h.h;
assert(p != NULL);
p->rc = kOkJsRC;
return p;
}
cmJsRC_t _cmJsonError( cmJs_t* p, cmJsRC_t rc, const char* fmt, ... )
{
va_list vl;
va_start(vl,fmt);
rc = cmErrVMsg(&p->err,rc,fmt,vl);
va_end(vl);
return rc;
}
cmJsRC_t _cmJsonSyntaxError( cmJs_t* p, const char* fmt, ... )
{
int bn = 1024;
char buf[bn+1];
buf[0]=0;
buf[bn]=0;
va_list vl;
va_start(vl,fmt);
if( p->reportErrPosnFl )
snprintf(buf,bn,"Syntax error on line:%i column:%i. ",cmLexCurrentLineNumber(p->lexH),cmLexCurrentColumnNumber(p->lexH));
int n = strlen(buf);
vsnprintf(buf+n,bn-n,fmt,vl);
va_end(vl);
return cmErrMsg(&p->err,kSyntaxErrJsRC,"%s",buf);
}
// Note that the stack is formed by a linked list
// which is chained together using the nodes parentPtr.
// This works beacause the parentPtr for object,array,
// and pair nodes (the only nodes on the stack) is not
// needed as long as the node is on the stack. Once the
// node is popped the parentPtr is then set from the
// new stack top.
cmJsRC_t _cmJsonPushNode( cmJs_t* p, cmJsonNode_t* np )
{
np->ownerPtr = p->lastPtr;
p->lastPtr = np;
if( p->basePtr == NULL )
p->basePtr = np;
return kOkJsRC;
}
cmJsRC_t _cmJsonPopNode( cmJs_t* p )
{
if( p->lastPtr == NULL )
return _cmJsonSyntaxError(p,"A parser stack underlow signalled a syntax error.");
cmJsonNode_t* t = p->lastPtr;
// remove the top element
p->lastPtr = p->lastPtr->ownerPtr;
// set the parent of the popped node
t->ownerPtr = p->lastPtr;
if( p->lastPtr == NULL )
p->basePtr = NULL;
return kOkJsRC;
}
cmJsRC_t cmJsonInitialize( cmJsonH_t* hp, cmCtx_t* ctx )
{
cmJsRC_t rc;
cmJs_t* p;
unsigned i;
// finalize before initialize
if((rc = cmJsonFinalize(hp)) != kOkJsRC )
return rc;
// allocate the main object record
if((p = cmMemAllocZ( cmJs_t, 1 )) == NULL )
return cmErrMsg(&ctx->err,kMemAllocErrJsRC,"Object memory allocation failed.");
cmErrSetup(&p->err,&ctx->rpt,"JSON Parser");
// allocate the linked heap mgr
if( cmLHeapIsValid(p->heapH = cmLHeapCreate(1024,ctx)) == false )
{
rc = _cmJsonError(p,kMemAllocErrJsRC,"Linked heap object allocation failed.");
goto errLabel;
}
// allocate the lexer
if(cmLexIsValid(p->lexH = cmLexInit(NULL,0,0,&ctx->rpt)) == false )
{
rc = _cmJsonError(p,kLexErrJsRC,"Lex allocation failed.");
goto errLabel;
}
// register json specific tokens with the lexer
for(i=0; _cmJsTokenArray[i].id != kErrorLexTId; ++i)
{
cmRC_t lexRC;
if( (lexRC = cmLexRegisterToken(p->lexH, _cmJsTokenArray[i].id, _cmJsTokenArray[i].text )) != kOkLexRC )
{
rc = _cmJsonError(p,kLexErrJsRC,"Lex token registration failed for:'%s'.\nLexer Error:%s",_cmJsTokenArray[i].text, cmLexRcToMsg(lexRC) );
goto errLabel;
}
}
hp->h = p;
return kOkJsRC;
errLabel:
cmMemPtrFree(&p);
if( cmLHeapIsValid(p->heapH) )
cmLHeapDestroy(&p->heapH);
if( cmLexIsValid(p->lexH) )
cmLexFinal(&p->lexH);
return rc;
}
cmJsRC_t cmJsonInitializeFromFile( cmJsonH_t* hp, const char* fn, cmCtx_t* ctx )
{
cmJsRC_t jsRC;
if((jsRC = cmJsonInitialize(hp,ctx)) != kOkJsRC )
return jsRC;
if((jsRC = cmJsonParseFile(*hp,fn,NULL)) != kOkJsRC )
cmJsonFinalize(hp);
return jsRC;
}
cmJsRC_t cmJsonInitializeFromBuf( cmJsonH_t* hp, cmCtx_t* ctx, const char* buf, unsigned bufByteCnt )
{
cmJsRC_t jsRC;
if((jsRC = cmJsonInitialize(hp,ctx)) != kOkJsRC )
return jsRC;
if((jsRC = cmJsonParse(*hp,buf,bufByteCnt,NULL)) != kOkJsRC )
cmJsonFinalize(hp);
return jsRC;
}
cmJsRC_t cmJsonFinalize( cmJsonH_t* hp )
{
cmRC_t lexRC;
if( hp == NULL || hp->h == NULL )
return kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(*hp);
// free the internal heap object
cmLHeapDestroy( &p->heapH );
// free the lexer
if( cmLexIsValid(p->lexH) )
if((lexRC = cmLexFinal(&p->lexH)) != kOkLexRC )
return _cmJsonError(p,kLexErrJsRC,"Lexer finalization failed.\nLexer Error:%s",cmLexRcToMsg(lexRC));
cmMemPtrFree(&p->serialBufPtr);
// free the handle
cmMemPtrFree(&hp->h);
return kOkJsRC;
}
bool cmJsonIsValid( cmJsonH_t h )
{ return h.h != NULL; }
bool cmJsonIsModified( cmJsonH_t h )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return p->modifiedFl;
}
cmJsRC_t _cmJsonLinkInChild( cmJs_t* p, cmJsonNode_t* parentPtr, cmJsonNode_t* np )
{
cmJsRC_t rc = kOkJsRC;
np->ownerPtr = parentPtr;
switch( parentPtr->typeId )
{
case kObjectTId:
case kArrayTId:
case kPairTId:
{
// if the parent is an 'object' then the child must be a 'pair'
if( parentPtr->typeId == kObjectTId && np->typeId != kPairTId )
rc = _cmJsonSyntaxError(p,"Expect only 'pair' nodes as children of 'objects'.");
// if the parent is a 'pair' then is may have a max of two children
if( parentPtr->typeId == kPairTId && cmJsonChildCount(parentPtr) >= 2 )
rc = _cmJsonSyntaxError(p,"'pair' nodes may only have 2 children.");
// insert the new node into the parent child list
// if the new node is the first child
if( parentPtr->u.childPtr == NULL )
parentPtr->u.childPtr = np;
else
{
// if the new node is the second or greater child
cmJsonNode_t* lp = parentPtr->u.childPtr;
while( lp->siblingPtr != NULL )
lp = lp->siblingPtr;
lp->siblingPtr = np;
}
}
break;
default:
rc = _cmJsonSyntaxError(p,"'%s' nodes cannot be parent nodes.",_cmJsonNodeTypeIdToLabel(parentPtr->typeId));
break;
}
return rc;
}
// This function creates nodes it also:
// 1. inserts array elments into their parents child list
// 2. inserts pairs into their parents member list
// 3. assigns values to pairs
cmJsRC_t _cmJsonCreateNode( cmJs_t* p, cmJsonNode_t* parentPtr, unsigned newNodeTypeId, cmJsonNode_t** npp )
{
cmJsRC_t rc = kOkJsRC;
cmJsonNode_t* np;
assert( npp != NULL );
*npp = NULL;
// allocate the new node
if((np = cmLHeapAllocZ( p->heapH, sizeof(cmJsonNode_t) )) == NULL )
return _cmJsonError(p,kMemAllocErrJsRC,"Error allocating node memory.");
// set the new node type
np->typeId = newNodeTypeId;
np->ownerPtr = parentPtr;
if( parentPtr == NULL )
{
if( newNodeTypeId != kObjectTId && newNodeTypeId != kArrayTId )
rc = _cmJsonSyntaxError(p,"'%s' nodes must have a parent node.",_cmJsonNodeTypeIdToLabel(newNodeTypeId));
}
else
{
// if the parent is an 'object', 'array', or 'pair' then the
// new node must be a child - insert it into the parent child list
if((rc = _cmJsonLinkInChild( p, parentPtr, np )) != kOkJsRC )
return rc;
switch( newNodeTypeId )
{
case kObjectTId:
case kArrayTId:
break;
case kPairTId:
if( parentPtr == NULL || parentPtr->typeId != kObjectTId )
rc = _cmJsonSyntaxError(p,"'pair' nodes must be the child of an object 'node'.");
break;
default:
if( parentPtr == NULL )
rc = _cmJsonSyntaxError(p,"'%s' nodes must have parent nodes.",_cmJsonNodeTypeIdToLabel(newNodeTypeId));
}
}
// assign the return value
*npp = np;
if( p->rootPtr == NULL)
{
if( np->typeId != kObjectTId && np->typeId != kArrayTId )
rc = _cmJsonSyntaxError(p,"The root object must be an 'object' or 'array'.");
p->rootPtr = np;
}
p->modifiedFl = true;
return rc;
}
cmJsRC_t _cmJsonCreateNumber( cmJs_t* p, cmJsonNode_t* parentPtr, unsigned nodeTId, cmJsonNode_t** npp )
{
// numbers may only occurr as children of a 'pair' or element of an 'array'
if( (parentPtr==NULL) || (parentPtr->typeId != kPairTId && parentPtr->typeId != kArrayTId) )
return _cmJsonSyntaxError(p, "The parent of scalar:%*s is not a 'pair' or 'array'.", cmLexTokenCharCount(p->lexH), cmLexTokenText(p->lexH) );
return _cmJsonCreateNode(p,parentPtr,nodeTId,npp);
}
cmJsRC_t _cmJsonCreateReal(cmJs_t* p, cmJsonNode_t* parentPtr, double v, cmJsonNode_t** newNodePtrPtr )
{
cmJsRC_t rc;
cmJsonNode_t* np = NULL;
if( newNodePtrPtr != NULL )
*newNodePtrPtr = NULL;
if((rc= _cmJsonCreateNumber(p,parentPtr,kRealTId,&np)) == kOkJsRC )
{
np->u.realVal = v;
if( newNodePtrPtr != NULL)
*newNodePtrPtr = np;
}
return rc;
}
cmJsRC_t _cmJsonCreateInt(cmJs_t* p, cmJsonNode_t* parentPtr, int v, cmJsonNode_t** newNodePtrPtr )
{
cmJsRC_t rc;
cmJsonNode_t* np = NULL;
if( newNodePtrPtr != NULL )
*newNodePtrPtr = NULL;
if((rc= _cmJsonCreateNumber(p,parentPtr,kIntTId,&np)) == kOkJsRC )
{
np->u.intVal = v;
if( newNodePtrPtr != NULL )
*newNodePtrPtr = np;
}
return rc;
}
cmJsRC_t _cmJsonCreateBool(cmJs_t* p, cmJsonNode_t* parentPtr, bool fl, cmJsonNode_t** newNodePtrPtr )
{
cmJsRC_t rc;
cmJsonNode_t* np = NULL;
if( newNodePtrPtr != NULL )
*newNodePtrPtr = NULL;
if((rc= _cmJsonCreateNumber(p,parentPtr,fl?kTrueTId:kFalseTId,&np)) == kOkJsRC )
{
np->u.boolVal = fl;
if( newNodePtrPtr != NULL )
*newNodePtrPtr = np;
}
return rc;
}
cmJsRC_t _cmJsonCreateNull(cmJs_t* p, cmJsonNode_t* parentPtr, cmJsonNode_t** newNodePtrPtr )
{
cmJsRC_t rc;
cmJsonNode_t* np = NULL;
if( newNodePtrPtr != NULL )
*newNodePtrPtr = NULL;
if((rc = _cmJsonCreateNumber(p,parentPtr,kNullTId,&np)) == kOkJsRC )
{
if( newNodePtrPtr != NULL )
*newNodePtrPtr = np;
}
return rc;
}
cmJsRC_t _cmJsonEscapeInt( cmJs_t* p, const char* sp, unsigned i, unsigned n, unsigned hexDigitCnt, char* rp )
{
char buf[hexDigitCnt+1];
memset(buf,0,hexDigitCnt+1);
// fill buf[] with the next two characters
unsigned j;
for(j=0; i<n && j<hexDigitCnt; ++i,++j)
buf[j] = sp[i];
// be sure the buffer was filled - we must get exactly two characters
if( i == n )
return _cmJsonError(p,kInvalidHexEscapeJsRC,"An invalid hex escape code was encountered.");
// do the text to int conversion
errno = 0;
long val = strtol(buf,NULL,16);
// validate the conversion
if( errno != 0 )
return _cmJsonError(p,kInvalidHexEscapeJsRC,"Hex escape value conversion failed.");
// convert the long to a character
if( val > 0xff )
return _cmJsonError(p,kInvalidHexEscapeJsRC,"Hex escape value is out of range (0x00-0xff).");
*rp = (char)val;
return kOkJsRC;
}
cmJsRC_t _cmJsonEscapeString( cmJs_t* p, char* dp, const char* sp, unsigned n )
{
cmJsRC_t rc;
unsigned hexDigCnt = 2; // count of digits in \u notation
unsigned i,j;
for(i=0,j=0; i<n; ++i,++j)
{
if( (sp[i] == '\\') && (i<(n-1) ))
{
switch( sp[i+1] )
{
case 'b': dp[j] = '\b'; break;
case 'f': dp[j] = '\f'; break;
case 'n': dp[j] = '\n'; break;
case 'r': dp[j] = '\r'; break;
case 't': dp[j] = '\t'; break;
case 'u':
{
if((rc = _cmJsonEscapeInt( p, sp, i+2, n, hexDigCnt, dp+j )) != kOkJsRC )
return rc;
i += hexDigCnt; // skip hex digits
}
break;
default:
dp[j] = sp[i+1];
break;
}
++i; // skip the escape character '\'
}
else
{
dp[j] = sp[i];
}
}
if( j < n )
dp[j] = 0;
return kOkJsRC;
}
// if 'cp' is NULL or 'cn' is 0 then the current string is dealloc'd
// and the internal string value is left as NULL.
cmJsRC_t _cmJsonSetString( cmJs_t* p, cmJsonNode_t* np, const char* cp, unsigned cn )
{
assert( np->typeId == kStringTId );
cmJsRC_t rc = kOkJsRC;
// deallocate the current string
if( np->u.stringVal != NULL )
{
cmLHeapFree(p->heapH,np->u.stringVal);
np->u.stringVal = NULL;
}
if( cp != NULL && cn>0 )
{
// allocate the node data memory to hold the string
if((np->u.stringVal = cmLHeapAllocZ(p->heapH,cn+1)) == NULL )
return _cmJsonError(p,kMemAllocErrJsRC,"Unable to allocate stirng memory.");
// copy the string into the node data memory
if((rc = _cmJsonEscapeString(p, np->u.stringVal, cp, cn)) != kOkJsRC )
return rc;
np->u.stringVal[cn]=0;
}
return rc;
}
cmJsRC_t _cmJsonCreateString(cmJs_t* p, cmJsonNode_t* parentPtr, const char* cp, unsigned cn, cmJsonNode_t** newNodePtrPtr )
{
cmJsRC_t rc;
cmJsonNode_t* np = NULL;
if( newNodePtrPtr != NULL )
*newNodePtrPtr = NULL;
// strings may only occurr as children of a 'pair' or element of an 'array'
if( (parentPtr->typeId != kPairTId && parentPtr->typeId != kArrayTId ) )
return _cmJsonSyntaxError(p, "The parent of string:%*s is not a 'pair', 'array', or 'object'.", cn,cp);
// create the new node
if((rc = _cmJsonCreateNode(p,parentPtr,kStringTId,&np)) != kOkJsRC )
return rc;
if((rc = _cmJsonSetString(p,np,cp,cn)) != kOkJsRC )
return rc;
/*
// allocate the node data memory to hold the string
if((np->u.stringVal = cmLHeapAllocZ(p->heapH,cn+1)) == NULL )
return _cmJsonError(p,kMemAllocErrJsRC,"Unable to allocate stirng memory.");
if((rc = _cmJsonEscapeString(p, np->u.stringVal, cp, cn)) != kOkJsRC )
return rc;
// copy the string into the node data memory
//strncpy(np->u.stringVal,cp,cn);
np->u.stringVal[cn]=0;
*/
if( newNodePtrPtr != NULL )
*newNodePtrPtr = np;
return rc;
}
cmJsRC_t _cmJsonCreatePair( cmJs_t* p, cmJsonNode_t* parentPtr, const char* label, cmJsonNode_t** newNodePtrPtr )
{
cmJsRC_t rc;
if((rc = _cmJsonCreateNode(p,parentPtr,kPairTId,newNodePtrPtr)) != kOkJsRC )
return rc;
return _cmJsonCreateString( p, *newNodePtrPtr, label, strlen(label), NULL);
}
// if fn == NULL then the buffer must contain the text to parse
cmJsRC_t _cmJsonParse(cmJsonH_t h, const char* buf, unsigned bufCharCnt, const cmChar_t* fn, cmJsonNode_t* altRootPtr )
{
unsigned lexTId = kErrorLexTId;
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsonNode_t* cnp = altRootPtr == p->rootPtr ? altRootPtr : p->rootPtr;
cmJsonNode_t* nnp = NULL;
cmJsRC_t rc;
p->reportErrPosnFl = true;
// assign the text buffer and reset the lexer
if( fn == NULL )
rc = cmLexSetTextBuffer( p->lexH, buf, bufCharCnt );
else
rc = cmLexSetFile( p->lexH, fn );
if( rc != kOkLexRC )
return _cmJsonError( p, kLexErrJsRC, "Error setting lexer buffer.");
// get the next token
while( (lexTId = cmLexGetNextToken( p->lexH )) != kErrorLexTId && (lexTId != kEofLexTId ) && (rc==kOkJsRC) )
{
cnp = p->lastPtr;
// if cnp is a pair and it's value has been assigned
if( cnp != NULL && cnp->typeId == kPairTId && cmJsonChildCount(cnp)==2 )
{
if((rc = _cmJsonPopNode(p)) != kOkJsRC )
break;
cnp = p->lastPtr;
}
switch( lexTId )
{
case kRealLexTId: // real number
rc = _cmJsonCreateReal(p, cnp, cmLexTokenDouble( p->lexH ), NULL);
break;
case kHexLexTId: // hexidecimal integer
// allow hex integers to be equivalent to decimal integers
case kIntLexTId: // decimal integer
rc = _cmJsonCreateInt(p, cnp, cmLexTokenInt( p->lexH ), NULL );
break;
case kTrueLexTId: // true
rc = _cmJsonCreateBool(p, cnp, true, NULL );
break;
case kFalseLexTId: // false
rc = _cmJsonCreateBool(p, cnp, false, NULL );
break;
case kNullLexTId: // null
rc = _cmJsonCreateNull(p, cnp, NULL );
break;
case kIdentLexTId: // identifier
// allow identifiers to be equivalent to strings.
case kQStrLexTId: // quoted string
if( cnp == NULL )
rc = _cmJsonSyntaxError(p,"Encountered a 'string' with no parent.");
else
if( cnp->typeId == kObjectTId )
{
if((rc = _cmJsonCreateNode(p,cnp,kPairTId,&nnp)) == kOkJsRC )
{
_cmJsonPushNode(p,nnp);
cnp = nnp;
}
//if((rc = _cmJsonCreateNewParent(p,cnp,kPairTId)) == kOkJsRC )
// cnp = p->lastPtr;
}
if( rc == kOkJsRC )
rc = _cmJsonCreateString(p, cnp, cmLexTokenText(p->lexH), cmLexTokenCharCount(p->lexH), NULL);
break;
case kColonLexTId:
if( cnp->typeId != kPairTId )
rc = _cmJsonSyntaxError(p,"A colon was found outside of a 'pair' element.");
break;
case kLCurlyLexTId: // {
//rc = _cmJsonCreateNewParent(p, cnp, kObjectTId );
if((rc = _cmJsonCreateNode(p,cnp,kObjectTId,&nnp)) == kOkJsRC )
_cmJsonPushNode(p,nnp);
break;
case kRCurlyLexTId: // }
if( cnp == NULL || cnp->typeId != kObjectTId )
rc = _cmJsonSyntaxError(p,"A '}' was found without an accompanying opening bracket.");
else
rc = _cmJsonPopNode(p);
break;
case kLHardLexTId: // [
//rc = _cmJsonCreateNewParent(p, cnp, kArrayTId);
if((rc = _cmJsonCreateNode(p,cnp,kArrayTId,&nnp)) == kOkJsRC )
_cmJsonPushNode(p,nnp);
break;
case kRHardLexTId: // ]
if( cnp == NULL || cnp->typeId != kArrayTId )
rc = _cmJsonSyntaxError(p,"A ']' was found without an accompanying opening bracket.");
else
rc = _cmJsonPopNode(p);
break;
case kCommaLexTId: // ,
if( (cnp==NULL) || (cnp->typeId != kArrayTId && cnp->typeId != kObjectTId) )
rc = _cmJsonSyntaxError(p,"Commas may only occur in 'array' and 'object' nodes.");
break;
case kSpaceLexTId: // white space
case kBlockCmtLexTId: // block comment
case kLineCmtLexTId: // line comment
assert(0);
break;
default:
break;
}
}
if( lexTId == kErrorLexTId )
rc = _cmJsonSyntaxError( p, "The lexer failed: %s.", cmLexRcToMsg(cmLexErrorRC(p->lexH)));
p->reportErrPosnFl = false;
p->modifiedFl = false;
return rc;
}
cmJsRC_t cmJsonParse( cmJsonH_t h, const char* buf, unsigned bufCharCnt, cmJsonNode_t* altRootPtr )
{ return _cmJsonParse(h,buf,bufCharCnt,NULL,altRootPtr); }
cmJsRC_t cmJsonParseFile( cmJsonH_t h, const char* fn, cmJsonNode_t* altRootPtr )
{ return _cmJsonParse(h,NULL,0,fn,altRootPtr); }
cmJsonNode_t* cmJsonRoot( cmJsonH_t h )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return p->rootPtr;
}
cmJsRC_t cmJsonClearTree( cmJsonH_t h )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
p->rootPtr = NULL;
p->basePtr = NULL;
p->lastPtr = NULL;
cmLHeapClear(p->heapH,true);
return kOkJsRC;
}
bool cmJsonIsObject( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kObjectTId); }
bool cmJsonIsArray( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kArrayTId); }
bool cmJsonIsPair( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kPairTId); }
bool cmJsonIsString( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kStringTId); }
bool cmJsonIsInt( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kIntTId); }
bool cmJsonIsReal( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kRealTId); }
bool cmJsonIsBool( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kTrueTId | kFalseTId); }
unsigned cmJsonChildCount( const cmJsonNode_t* np )
{
if( np == NULL )
return 0;
unsigned n = 0;
switch( np->typeId )
{
case kObjectTId:
case kArrayTId:
case kPairTId:
{
const cmJsonNode_t* lp = np->u.childPtr;
while( lp != NULL )
{
++n;
lp = lp->siblingPtr;
}
}
break;
default:
break;
}
return n;
}
cmJsonNode_t* cmJsonArrayElement( cmJsonNode_t* np, unsigned index )
{
unsigned i;
assert( index < cmJsonChildCount(np));
np = np->u.childPtr;
for(i=0; i<index; ++i)
np = np->siblingPtr;
return np;
}
const cmJsonNode_t* cmJsonArrayElementC( const cmJsonNode_t* np, unsigned index )
{ return cmJsonArrayElement( (cmJsonNode_t*)np, index ); }
const char* cmJsonPairLabel( const cmJsonNode_t* pairPtr )
{
assert( pairPtr->typeId == kPairTId );
if( pairPtr->typeId != kPairTId )
return NULL;
return pairPtr->u.childPtr->u.stringVal;
}
unsigned cmJsonPairTypeId( const cmJsonNode_t* pairPtr )
{
assert( pairPtr->typeId == kPairTId );
return pairPtr->u.childPtr->siblingPtr->typeId;
}
cmJsonNode_t* cmJsonPairValue( cmJsonNode_t* pairPtr )
{
assert( pairPtr->typeId == kPairTId );
if( pairPtr->typeId != kPairTId )
return NULL;
return pairPtr->u.childPtr->siblingPtr;
}
cmJsonNode_t* cmJsonFindValue( cmJsonH_t h, const char* label, const cmJsonNode_t* np, unsigned keyTypeMask )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
if( np == NULL )
np = p->rootPtr;
if( np == NULL )
return NULL;
// we are only interested in pairs
if( np->typeId == kPairTId )
{
// pairs must have exactly two nodes - the first must be a string
assert(np->u.childPtr != NULL && np->u.childPtr->typeId == kStringTId && np->u.childPtr->siblingPtr != NULL );
if( strcmp(cmJsonPairLabel(np),label) == 0 )
{
if( (keyTypeMask==kInvalidTId) || (keyTypeMask & np->u.childPtr->siblingPtr->typeId) )
return np->u.childPtr->siblingPtr;
}
}
// if the node is an object,array, or pair ...
if( np->typeId==kObjectTId || np->typeId==kArrayTId || np->typeId==kPairTId )
{
// ... then recurse on its children
cmJsonNode_t* cnp = np->u.childPtr;
while(cnp != NULL)
{
cmJsonNode_t* rp;
if((rp = cmJsonFindValue(h,label,cnp,keyTypeMask)) != NULL )
return rp;
cnp = cnp->siblingPtr;
}
}
return NULL;
}
cmJsRC_t _cmJsonFindPathValue( cmJs_t* p, const char* pathPrefix, const char* path, const cmJsonNode_t* rp, const cmJsonNode_t** rpp )
{
cmJsRC_t rc = kOkJsRC;
if( rp == NULL )
rp = p->rootPtr;
if( rp == NULL )
return kOkJsRC;
assert( cmJsonIsObject(rp));
assert( rpp != NULL );
*rpp = NULL;
// create a copy of the path
unsigned i,j;
unsigned sn = (pathPrefix==NULL ? 0 : strlen(pathPrefix)) + strlen(path) + 1; // add one for the possible extra seperator
char ss[ 1024 ];
char* sp = NULL;
char* sm = NULL;
char* sb = ss;
// don't put more than 1k on the stack
if( sn + 1 > 1024 )
{
sm = cmMemAllocZ(char,sn+1);
sb = sm;
}
sp = sb;
sp[0] = 0;
if(pathPrefix != NULL )
{
strcpy(sp,pathPrefix);
// if pathPrefix does not end in a '/' then insert one
if( sp[ strlen(sp)-1 ] != '/' )
strcat(sp,"/");
}
// the '/' has already been inserted - skip any leading '/' character in path
strcat(sp,path[0]=='/' ? path+1 : path );
// terminate each path label with a '/0'.
sp = ss;
for(i=0,j=0; sp < ss + sn; ++sp, ++i )
if( *sp == '/' )
{
*sp = 0;
++j;
}
if( i > 0 )
{
sp = sb;
while( sp < sb + sn )
{
// labeled values are always associated with pairs and
// pairs only exist as the children of objects.
if( cmJsonIsObject(rp) == false )
{
rc = cmErrMsg(&p->err,kInvalidNodeTypeJsRC,"A non-object node was encountered on a object path.");
break;
}
// get the count of pairs in this object
unsigned cn = cmJsonChildCount( rp );
cmJsonNode_t* cp = rp->u.childPtr;
unsigned k;
for(k=0; k<cn; ++k)
{
// all children of an object must be pairs
assert( cp != NULL && cmJsonIsPair(cp) );
// if this is the labeled pair we are looking for
if( strcmp(cmJsonPairLabel(cp),sp) == 0 )
break;
cp = cp->siblingPtr;
}
// if the search failed
if( k == cn || cp == NULL )
{
rc = cmErrMsg(&p->err,kNodeNotFoundJsRC,"The path label '%s' could not be found.",cmStringNullGuard(sp));
break;
}
// take the value of the located pair to continue the search
rp = cmJsonPairValue(cp);
// advance to the next label
sp += strlen(sp) + 1;
}
}
cmMemPtrFree(&sm);
*rpp = rp;
return rc;
}
cmJsRC_t _cmJsonPathToValueError( cmJs_t* p, cmJsRC_t rc, const char* pathPrefix, const char* path, const char* typeLabel )
{
if( pathPrefix != NULL )
cmErrMsg(&p->err,rc,"The JSON value at '%s/%s' could not be converted to a '%s'.",cmStringNullGuard(pathPrefix),cmStringNullGuard(path),cmStringNullGuard(typeLabel));
else
cmErrMsg(&p->err,rc,"The JSON value at '%s' could not be converted to a '%s'.",cmStringNullGuard(path),cmStringNullGuard(typeLabel));
return rc;
}
cmJsRC_t cmJsonPathToValueNode( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, const cmJsonNode_t** nodePtrPtr )
{
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if( objectNodePtr == NULL )
objectNodePtr = p->rootPtr;
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,nodePtrPtr)) != kOkJsRC )
return rc;
return rc;
}
cmJsRC_t cmJsonPathToBool( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, bool* retValPtr )
{
const cmJsonNode_t* rp;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonBoolValue(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"bool");
return rc;
}
cmJsRC_t cmJsonPathToInt( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, int* retValPtr )
{
const cmJsonNode_t* rp;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonIntValue(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"bool");
return rc;
}
cmJsRC_t cmJsonPathToUInt( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, unsigned* retValPtr )
{
const cmJsonNode_t* rp;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonUIntValue(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"unsigned integer");
return rc;
}
cmJsRC_t cmJsonPathToReal( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, double* retValPtr )
{
const cmJsonNode_t* rp;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonRealValue(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"real");
return rc;
}
cmJsRC_t cmJsonPathToString( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, const char** retValPtr )
{
const cmJsonNode_t* rp = NULL;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonStringValue(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"string");
return rc;
}
cmJsRC_t cmJsonPathToPair( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr )
{
const cmJsonNode_t* rp;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonPairNode(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"pair");
return rc;
}
cmJsRC_t cmJsonPathToArray( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr )
{
const cmJsonNode_t* rp;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonArrayNode(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"array");
return rc;
}
cmJsRC_t cmJsonPathToObject( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr )
{
const cmJsonNode_t* rp;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
return rc;
if((rc = cmJsonObjectNode(rp,retValPtr)) != kOkJsRC )
return _cmJsonPathToValueError(p,rc,pathPrefix,path,"object");
return rc;
}
const cmJsonNode_t* cmJsonFindPathValueC( cmJsonH_t h, const char* path, const cmJsonNode_t* np, unsigned typeIdMask )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
const cmJsonNode_t* rp = NULL;
cmJsRC_t rc = kOkJsRC;
if((rc = _cmJsonFindPathValue(p,NULL,path,np,&rp)) != kOkJsRC )
{
// validate the return type
if( rp != NULL )
if( (typeIdMask!=kInvalidTId) && (typeIdMask & rp->typeId)==0 )
{
cmErrMsg(&p->err,kInvalidNodeTypeJsRC,"The value at the end of the path '%s' did not match the requested type.",cmStringNullGuard(path));
rp = NULL;
}
}
return rp;
}
cmJsonNode_t* cmJsonFindPathValue( cmJsonH_t h, const char* path, const cmJsonNode_t* np, unsigned typeIdMask )
{ return (cmJsonNode_t*)cmJsonFindPathValueC(h,path,np,typeIdMask ); }
cmJsRC_t _cmJsonFindMemberValue( const cmJsonNode_t* np, const char* label, unsigned keyTypeId, cmJsonNode_t** npp )
{
*npp = NULL;
// the src node must be an object
if( np->typeId != kObjectTId )
return kNodeNotFoundJsRC;
// for each member pair
const cmJsonNode_t* cnp = np->u.childPtr;
while( cnp != NULL )
{
assert( (cnp->typeId & kMaskTId) == kPairTId );
// if the labels match ...
if( strcmp( label, cmJsonPairLabel(cnp)) == 0 )
{
// ... and the type flags match ...
if( (keyTypeId==kInvalidTId || cmIsFlag(cnp->u.childPtr->siblingPtr->typeId,keyTypeId) ) )
{
*npp = cnp->u.childPtr->siblingPtr;
return kOkJsRC; // ... then the key was found.
}
// ... label match but wrong type ... this is considered an error
return kNodeCannotCvtJsRC;
}
cnp = cnp->siblingPtr;
}
return kNodeNotFoundJsRC;
}
cmJsRC_t cmJsonUIntValue( const cmJsonNode_t* vp, unsigned* retPtr )
{
cmJsRC_t rc = kOkJsRC;
if( vp == NULL )
return kNodeCannotCvtJsRC;
switch(vp->typeId)
{
case kIntTId: *retPtr = vp->u.intVal; break;
case kRealTId: *retPtr = (unsigned)vp->u.realVal; break;
case kTrueTId: *retPtr = 1; break;
case kFalseTId: *retPtr = 0; break;
default:
rc = kNodeCannotCvtJsRC;
}
return rc;
}
cmJsRC_t cmJsonIntValue( const cmJsonNode_t* vp, int* retPtr )
{
cmJsRC_t rc = kOkJsRC;
if( vp == NULL )
return kNodeCannotCvtJsRC;
switch(vp->typeId)
{
case kIntTId: *retPtr = vp->u.intVal; break;
case kRealTId: *retPtr = (int)vp->u.realVal; break;
case kTrueTId: *retPtr = 1; break;
case kFalseTId: *retPtr = 0; break;
default:
rc = kNodeCannotCvtJsRC;
}
return rc;
}
cmJsRC_t cmJsonRealValue( const cmJsonNode_t* vp, double* retPtr )
{
cmJsRC_t rc = kOkJsRC;
if( vp == NULL )
return kNodeCannotCvtJsRC;
switch(vp->typeId)
{
case kIntTId: *retPtr = vp->u.intVal; break;
case kRealTId: *retPtr = vp->u.realVal; break;
case kTrueTId: *retPtr = 1; break;
case kFalseTId: *retPtr = 0; break;
default:
rc = kNodeCannotCvtJsRC;
}
return rc;
}
cmJsRC_t cmJsonBoolValue( const cmJsonNode_t* vp, bool* retPtr )
{
cmJsRC_t rc = kOkJsRC;
if( vp == NULL )
return kNodeCannotCvtJsRC;
switch(vp->typeId)
{
case kIntTId: *retPtr = vp->u.intVal != 0; break;
case kRealTId: *retPtr = (int)vp->u.realVal != 0; break;
case kTrueTId: *retPtr = 1; break;
case kFalseTId: *retPtr = 0; break;
default:
rc = kNodeCannotCvtJsRC;
}
return rc;
}
cmJsRC_t cmJsonStringValue( const cmJsonNode_t* vp, const char **retPtrPtr )
{
cmJsRC_t rc = kOkJsRC;
if( vp == NULL || vp->typeId != kStringTId )
return kNodeCannotCvtJsRC;
*retPtrPtr = vp->u.stringVal;
return rc;
}
cmJsRC_t cmJsonPairNode( const cmJsonNode_t* vp, cmJsonNode_t **retPtrPtr )
{
cmJsRC_t rc = kOkJsRC;
if( !cmJsonIsPair(vp) )
return kNodeCannotCvtJsRC;
*retPtrPtr = (cmJsonNode_t*)vp;
return rc;
}
cmJsRC_t cmJsonArrayNode( const cmJsonNode_t* vp, cmJsonNode_t **retPtrPtr )
{
cmJsRC_t rc = kOkJsRC;
if( !cmJsonIsArray(vp) )
return kNodeCannotCvtJsRC;
*retPtrPtr = (cmJsonNode_t*)vp;
return rc;
}
cmJsRC_t cmJsonObjectNode( const cmJsonNode_t* vp, cmJsonNode_t **retPtrPtr )
{
cmJsRC_t rc = kOkJsRC;
if( !cmJsonIsObject(vp) )
return kNodeCannotCvtJsRC;
*retPtrPtr = (cmJsonNode_t*)vp;
return rc;
}
cmJsonNode_t* cmJsonFindPair( const cmJsonNode_t* np, const char* label )
{
cmJsRC_t rc = kOkJsRC;
cmJsonNode_t* vnp = NULL;
if((rc = _cmJsonFindMemberValue( np, label, kInvalidTId, &vnp )) != kOkJsRC )
return NULL;
assert( vnp != NULL );
return vnp->ownerPtr;
}
cmJsRC_t cmJsonMemberType( const cmJsonNode_t* np, const char* label, unsigned* typeIdRef )
{
cmJsRC_t rc = kOkJsRC;
cmJsonNode_t* vnp = NULL;
if( typeIdRef != NULL )
*typeIdRef = kInvalidTId;
if((rc = _cmJsonFindMemberValue( np, label, kInvalidTId, &vnp )) != kOkJsRC )
return rc;
assert( vnp != NULL );
if( typeIdRef != NULL )
*typeIdRef = vnp->typeId & kMaskTId;
return rc;
}
cmJsonNode_t* cmJsonMemberAtIndex( cmJsonNode_t* objNodePtr, unsigned idx )
{
cmJsonNode_t* cnp = cmJsonArrayElement( objNodePtr, idx );
assert( cmJsonIsPair(cnp) );
return cnp;
}
cmJsRC_t cmJsonUIntMember( const cmJsonNode_t* np, const char* label, unsigned* retPtr )
{
cmJsonNode_t* vp;
cmJsRC_t rc;
if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
return rc;
return cmJsonUIntValue(vp,retPtr);
}
cmJsRC_t cmJsonIntMember( const cmJsonNode_t* np, const char* label, int* retPtr )
{
cmJsonNode_t* vp;
cmJsRC_t rc;
if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
return rc;
return cmJsonIntValue(vp,retPtr);
}
cmJsRC_t cmJsonRealMember( const cmJsonNode_t* np, const char* label, double* retPtr )
{
cmJsonNode_t* vp;
cmJsRC_t rc;
if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
return rc;
return cmJsonRealValue(vp,retPtr);
}
cmJsRC_t cmJsonBoolMember( const cmJsonNode_t* np, const char* label, bool* retPtr )
{
cmJsonNode_t* vp;
cmJsRC_t rc;
if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
return rc;
return cmJsonBoolValue(vp,retPtr);
}
cmJsRC_t cmJsonStringMember( const cmJsonNode_t* np, const char* label, const char** retPtrPtr )
{
cmJsonNode_t* vp;
cmJsRC_t rc;
*retPtrPtr = NULL;
if((rc = _cmJsonFindMemberValue(np,label,kStringTId,&vp)) != kOkJsRC )
return rc;
return cmJsonStringValue(vp,retPtrPtr);
}
cmJsRC_t cmJsonNodeMember( const cmJsonNode_t* np, const char* label, cmJsonNode_t** retPtrPtr )
{
cmJsonNode_t* vp;
cmJsRC_t rc;
*retPtrPtr = NULL;
if((rc = _cmJsonFindMemberValue(np,label,kArrayTId|kObjectTId,&vp)) != kOkJsRC )
return rc;
*retPtrPtr = vp;
return rc;
}
cmJsonNode_t* cmJsonNodeMemberValue( const cmJsonNode_t* np, const char* label )
{
assert( cmJsonIsObject(np) );
unsigned n = cmJsonChildCount(np);
unsigned j = 0;
for(; j<n; ++j)
{
const cmJsonNode_t* cnp = cmJsonArrayElementC(np,j);
assert( cnp != NULL && cmJsonIsPair(cnp) );
if( strcmp(label,cmJsonPairLabel(cnp))==0 )
return cmJsonPairValue((cmJsonNode_t*)cnp);
}
return NULL;
}
cmJsRC_t cmJsonVMemberValues( const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, va_list vl )
{
unsigned typeId;
cmJsRC_t rc = kOkJsRC;
if( errLabelPtrPtr != NULL )
*errLabelPtrPtr = NULL;
const char* label;
while( ((label = va_arg(vl,const char*)) != NULL) && (rc==kOkJsRC) )
{
typeId = va_arg(vl,unsigned);
switch( typeId & kMaskTId )
{
case kObjectTId:
case kPairTId:
case kArrayTId:
{
cmJsonNode_t** nodePtrPtr = va_arg(vl, cmJsonNode_t**);
if((rc = cmJsonNodeMember(objectNodePtr,label,nodePtrPtr )) == kOkJsRC )
{
cmJsonNode_t* np = *nodePtrPtr;
if( (np->typeId & kMaskTId) != (typeId&kMaskTId) )
rc = kNodeCannotCvtJsRC;
}
}
break;
case kIntTId:
{
int* ip = va_arg(vl, int* );
assert(ip != NULL);
rc = cmJsonIntMember(objectNodePtr, label, ip);
}
break;
case kRealTId:
{
double* dp = va_arg(vl, double*);
assert(dp != NULL);
rc = cmJsonRealMember(objectNodePtr, label, dp);
}
break;
case kStringTId:
{
const char** cpp = va_arg(vl, const char**);
assert(cpp != NULL);
rc = cmJsonStringMember(objectNodePtr, label, cpp);
}
break;
case kTrueTId:
case kFalseTId:
case kBoolTId:
{
bool* bp = va_arg(vl, bool* );
rc = cmJsonBoolMember(objectNodePtr, label, bp);
}
break;
default:
// missing terminating NULL on the var args list???
assert(0);
break;
}
if( (rc == kNodeNotFoundJsRC) && cmIsFlag(typeId,kOptArgJsFl) )
rc = kOkJsRC;
if( rc != kOkJsRC && errLabelPtrPtr != NULL )
*errLabelPtrPtr = label;
}
return rc;
}
cmJsRC_t cmJsonMemberValues( const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, ...)
{
va_list vl;
va_start(vl,errLabelPtrPtr);
cmJsRC_t rc = cmJsonVMemberValues(objectNodePtr,errLabelPtrPtr,vl);
va_end(vl);
return rc;
}
cmJsRC_t cmJsonVPathValues( cmJsonH_t h, const char* pathPrefix, const cmJsonNode_t* objNodePtr, const char** errLabelPtrPtr, va_list vl )
{
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if( errLabelPtrPtr != NULL )
*errLabelPtrPtr = NULL;
const char* path;
while( ((path = va_arg(vl,const char*)) != NULL) && (rc==kOkJsRC) )
{
unsigned typeId;
const cmJsonNode_t* vnp;
typeId = va_arg(vl,unsigned);
// find the requested pair value
if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objNodePtr,&vnp)) != kOkJsRC )
break;
switch( typeId & kMaskTId )
{
case kObjectTId:
case kPairTId:
case kArrayTId:
{
const cmJsonNode_t** nodePtrPtr = va_arg(vl, const cmJsonNode_t**);
if( (vnp->typeId & kMaskTId) != (typeId & kMaskTId) )
rc = kNodeCannotCvtJsRC;
else
*nodePtrPtr = vnp;
}
break;
case kIntTId:
{
int* ip = va_arg(vl, int* );
assert(ip != NULL);
rc = cmJsonIntValue(vnp, ip);
}
break;
case kRealTId:
{
double* dp = va_arg(vl, double*);
assert(dp != NULL);
rc = cmJsonRealValue(vnp, dp);
}
break;
case kStringTId:
{
const char** cpp = va_arg(vl, const char**);
assert(cpp != NULL);
rc = cmJsonStringValue(vnp, cpp);
}
break;
case kTrueTId:
case kFalseTId:
{
bool* bp = va_arg(vl, bool* );
rc = cmJsonBoolValue(vnp, bp);
}
break;
default:
// missing terminating NULL on the var args list???
assert(0);
break;
}
if( (rc == kNodeNotFoundJsRC) && cmIsFlag(typeId,kOptArgJsFl) )
rc = kOkJsRC;
if( rc != kOkJsRC && errLabelPtrPtr != NULL )
*errLabelPtrPtr = path;
}
return rc;
}
cmJsRC_t cmJsonPathValues( cmJsonH_t h, const char* pathPrefix, const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, ... )
{
va_list vl;
va_start(vl,errLabelPtrPtr);
cmJsRC_t rc = cmJsonVPathValues(h,pathPrefix,objectNodePtr,errLabelPtrPtr,vl);
va_end(vl);
return rc;
}
cmJsonNode_t* _cmJsonCreateNode2( cmJsonH_t h, unsigned newNodeTypeId, cmJsonNode_t* parentPtr )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsonNode_t* np = NULL;
if((p->rc = _cmJsonCreateNode(p,parentPtr,newNodeTypeId,&np)) != kOkJsRC )
return NULL;
return np;
}
cmJsRC_t cmJsonCreate( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned typeId, const char* sv, int iv, double dv, cmJsonNode_t** rpp )
{
cmJsonNode_t* rp = NULL;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
if( rpp != NULL )
*rpp = NULL;
switch( typeId )
{
case kObjectTId:
case kArrayTId:
if((rp = _cmJsonCreateNode2(h,typeId,parentPtr)) == NULL)
rc = p->rc;
else
{
if( rpp != NULL )
*rpp = rp;
}
break;
case kPairTId: rc = _cmJsonCreatePair(p,parentPtr,sv,rpp); break;
case kIntTId: rc = _cmJsonCreateInt(p,parentPtr,iv,rpp); break;
case kRealTId: rc = _cmJsonCreateReal(p,parentPtr,dv,rpp); break;
case kTrueTId: rc = _cmJsonCreateBool(p,parentPtr,true,rpp); break;
case kFalseTId: rc = _cmJsonCreateBool(p,parentPtr,false,rpp); break;
case kNullTId: rc = _cmJsonCreateNull(p,parentPtr,rpp); break;
case kStringTId: rc = _cmJsonCreateString(p,parentPtr,sv,strlen(sv),rpp); break;
default:
assert(0);
break;
}
return rc;
}
cmJsonNode_t* cmJsonCreateObject( cmJsonH_t h, cmJsonNode_t* parentPtr )
{ return _cmJsonCreateNode2(h,kObjectTId,parentPtr); }
cmJsonNode_t* cmJsonCreateArray( cmJsonH_t h, cmJsonNode_t* parentPtr )
{ return _cmJsonCreateNode2(h,kArrayTId,parentPtr); }
cmJsonNode_t* cmJsonCreatePair( cmJsonH_t h, cmJsonNode_t* parentPtr, const char* label )
{
cmJsonNode_t* np;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((_cmJsonCreatePair(p,parentPtr,label,&np)) != kOkJsRC )
return NULL;
return np;
}
cmJsRC_t cmJsonCreateString( cmJsonH_t h, cmJsonNode_t* parentPtr, const char* stringValue )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonCreateString( p, parentPtr, stringValue, strlen(stringValue),NULL);;
}
cmJsRC_t cmJsonCreateStringN(cmJsonH_t h, cmJsonNode_t* parentPtr, const char* stringValue, unsigned stringCharCnt )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonCreateString( p, parentPtr, stringValue, stringCharCnt,NULL);;
}
cmJsRC_t cmJsonCreateInt( cmJsonH_t h, cmJsonNode_t* parentPtr, int value )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonCreateInt( p, parentPtr, value, NULL );
}
cmJsRC_t cmJsonCreateReal( cmJsonH_t h, cmJsonNode_t* parentPtr, double value )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonCreateReal( p, parentPtr, value, NULL );
}
cmJsRC_t cmJsonCreateBool( cmJsonH_t h, cmJsonNode_t* parentPtr, bool value )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonCreateBool( p, parentPtr, value,NULL );
}
cmJsRC_t cmJsonCreateNull( cmJsonH_t h, cmJsonNode_t* parentPtr )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonCreateNull( p, parentPtr, NULL );
}
cmJsRC_t cmJsonCreateStringArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const char** value )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsRC_t rc = kOkJsRC;
cmJsonNode_t* np;
unsigned i;
if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'bool' array.");
for(i=0; i<n; ++i)
if((rc = cmJsonCreateString(h,np,value[i])) != kOkJsRC )
return _cmJsonError(p,rc,"Unable to create 'bool' array element at index %i.",i);
return rc;
}
cmJsRC_t cmJsonCreateIntArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const int* value )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsRC_t rc = kOkJsRC;
cmJsonNode_t* np;
unsigned i;
if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'int' array.");
for(i=0; i<n; ++i)
if((rc = cmJsonCreateInt(h,np,value[i])) != kOkJsRC )
return _cmJsonError(p,rc,"Unable to create 'int' array element at index %i.",i);
return rc;
}
cmJsRC_t cmJsonCreateRealArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const double* value )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsRC_t rc = kOkJsRC;
cmJsonNode_t* np;
unsigned i;
if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'real' array.");
for(i=0; i<n; ++i)
if((rc = cmJsonCreateReal(h,np,value[i])) != kOkJsRC )
return _cmJsonError(p,rc,"Unable to create 'real' array element at index %i.",i);
return rc;
}
cmJsRC_t cmJsonCreateBoolArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const bool* value )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsRC_t rc = kOkJsRC;
cmJsonNode_t* np;
unsigned i;
if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'bool' array.");
for(i=0; i<n; ++i)
if((rc = cmJsonCreateBool(h,np,value[i])) != kOkJsRC )
return _cmJsonError(p,rc,"Unable to create 'bool' array element at index %i.",i);
return rc;
}
cmJsRC_t cmJsonSetInt( cmJsonH_t h, cmJsonNode_t* np, int ival )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
if( np->typeId != kIntTId )
return _cmJsonError(p,kInvalidNodeTypeJsRC,"Cannot assign type 'int' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
np->u.intVal = ival;
p->modifiedFl = true;
return kOkJsRC;
}
cmJsRC_t cmJsonSetReal( cmJsonH_t h, cmJsonNode_t * np, double rval )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
if( np->typeId != kRealTId )
return _cmJsonError(p,kInvalidNodeTypeJsRC,"Cannot assign type 'real' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
np->u.realVal = rval;
p->modifiedFl = true;
return kOkJsRC;
}
cmJsRC_t cmJsonSetBool( cmJsonH_t h, cmJsonNode_t * np, bool bval )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
if( np->typeId == kTrueTId || np->typeId==kFalseTId )
return _cmJsonError(p,kInvalidNodeTypeJsRC,"Cannot assign type 'bool' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
np->u.boolVal = bval;
p->modifiedFl = true;
return kOkJsRC;
}
cmJsRC_t cmJsonSetString( cmJsonH_t h, cmJsonNode_t* np, const char* sval )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
if( np->typeId != kStringTId )
return _cmJsonError(p,kInvalidNodeTypeJsRC,"Cannot assign type 'string' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
unsigned sn = strlen(sval);
if( np->u.stringVal != NULL && strlen(np->u.stringVal) <= sn )
strcpy(np->u.stringVal,sval);
else
return _cmJsonSetString(p,np,sval,sn);
p->modifiedFl = true;
return kOkJsRC;
}
cmJsonNode_t* cmJsonInsertPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned typeId, const char* sv, int iv, double dv )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsRC_t rc;
cmJsonNode_t* pairNodePtr;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = _cmJsonCreatePair(p,objectNodePtr,label,&pairNodePtr)) != kOkJsRC )
return NULL;
assert( pairNodePtr != NULL );
if((rc = cmJsonCreate(h,pairNodePtr,typeId,sv,iv,dv,NULL)) != kOkJsRC )
return NULL;
return pairNodePtr;
}
cmJsonNode_t* cmJsonInsertPairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return NULL;
return cmJsonCreateObject(h,pairNodePtr);
}
cmJsonNode_t* cmJsonInsertPairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return NULL;
return cmJsonCreateArray(h,pairNodePtr);
}
cmJsonNode_t* cmJsonInsertPairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* pairLabel )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return NULL;
return cmJsonCreatePair(h,pairNodePtr,pairLabel);
}
cmJsRC_t cmJsonInsertPairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, int intVal )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateInt(h,pairNodePtr,intVal);
}
cmJsRC_t cmJsonInsertPairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, double realVal )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateReal(h,pairNodePtr,realVal);
}
cmJsRC_t cmJsonInsertPairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* stringVal )
{ return cmJsonInsertPairStringN(h,objectNodePtr,label,stringVal,stringVal==NULL ? 0 : strlen(stringVal)); }
cmJsRC_t cmJsonInsertPairStringN( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* stringVal, unsigned stringCharCnt )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateStringN(h,pairNodePtr,stringVal,stringCharCnt);
}
cmJsRC_t cmJsonInsertPairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, bool boolVal )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateBool(h,pairNodePtr,boolVal);
}
cmJsRC_t cmJsonInsertPairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateNull(h,pairNodePtr);
}
cmJsRC_t cmJsonInsertPairIntArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const int* values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateIntArray(h,pairNodePtr,n,values);
}
cmJsRC_t cmJsonInsertPairRealArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const double* values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateRealArray(h,pairNodePtr,n,values);
}
cmJsRC_t cmJsonInsertPairStringArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const char** values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateStringArray(h,pairNodePtr,n,values);
}
cmJsRC_t cmJsonInsertPairBoolArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const bool* values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
return cmJsonErrorCode(h);
return cmJsonCreateBoolArray(h,pairNodePtr,n,values);
}
cmJsonNode_t* cmJsonInsertPairIntArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const int* values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
if( cmJsonCreateIntArray(h,pairNodePtr,n,values) != kOkJsRC )
return NULL;
return pairNodePtr;
}
cmJsonNode_t* cmJsonInsertPairRealArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const double* values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
if( cmJsonCreateRealArray(h,pairNodePtr,n,values) != kOkJsRC )
return NULL;
return pairNodePtr;
}
cmJsonNode_t* cmJsonInsertPairStringArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const char** values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
if( cmJsonCreateStringArray(h,pairNodePtr,n,values) != kOkJsRC )
return NULL;
return pairNodePtr;
}
cmJsonNode_t* cmJsonInsertPairBoolArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const bool* values )
{
assert( objectNodePtr->typeId == kObjectTId );
cmJsonNode_t* pairNodePtr;
if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
if( cmJsonCreateBoolArray(h,pairNodePtr,n,values) != kOkJsRC )
return NULL;
return pairNodePtr;
}
cmJsRC_t _cmJsonInsertOrReplacePair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, unsigned newTypeId, const char* sv, int iv, double dv, cmJsonNode_t* nv, bool insertFl, cmJsonNode_t** retNodePtrPtr )
{
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsonNode_t* valNodePtr = NULL;
cmJsonNode_t* pairNodePtr = NULL;
assert( objectNodePtr->typeId == kObjectTId );
if( retNodePtrPtr != NULL )
*retNodePtrPtr = NULL;
// if a matching pair was not found ....
if(( valNodePtr = cmJsonFindValue(h,label,objectNodePtr,matchTypeMask)) == NULL )
{
// ... and insertion is not allowed then return error
if( insertFl == false )
return kNodeNotFoundJsRC;
// ... otherwise insert a new pair and return a pointer to it
pairNodePtr = cmJsonInsertPair(h,objectNodePtr,label,newTypeId,sv,iv,dv);
goto errLabel;
}
// ... otherwise a match was found to at least the pair label.
// If matchTypeMask was set to kInvalidTId then the type id
// of the found pair may not be the same as newTypeId. To handle
// this case we proceed by first deallocating all resources held
// by the found node and then proceeding by either creating
// deleting the found node and creating a replacement node
// (object,array,pair) or forcing the found node to a new
// type (int,real,true,false,string,null).
assert( valNodePtr != NULL);
pairNodePtr = valNodePtr->ownerPtr;
// release any resources held by the found node
switch( valNodePtr->typeId )
{
case kObjectTId:
case kArrayTId:
case kPairTId:
// remove the pair value node and replace it with a 'null' node.
if((rc =_cmJsonRemoveNode( p, valNodePtr, true, true )) != kOkJsRC )
goto errLabel;
break;
case kStringTId:
// deallocate string memory
_cmJsonSetString( p, valNodePtr, NULL, 0 );
break;
}
// relace the found node with the new node
switch( newTypeId )
{
case kObjectTId:
case kArrayTId:
case kPairTId:
{
cmJsonNode_t* newValueNodePtr = NULL;
// remove the current pair value ....
if((rc =_cmJsonRemoveNode( p, valNodePtr, true, false )) != kOkJsRC )
goto errLabel;
// new pair nodes should have the pair label in 'sv'
assert( newTypeId!=kPairTId || (newTypeId==kPairTId && sv != NULL ));
// if no new value was given or the new value is a pair then ...
if( nv == NULL || newTypeId == kPairTId )
{
// ... create a new blank array,obj or pair
if((rc = cmJsonCreate( h, pairNodePtr, newTypeId, sv, 0, 0, &newValueNodePtr )) != kOkJsRC )
goto errLabel;
}
// if the new value is a pair and no value node was given then set the
// new pairs value node to NULL
if( nv == NULL && newTypeId == kPairTId )
{
if((rc = _cmJsonCreateNull(p,newValueNodePtr,NULL)) != kOkJsRC )
goto errLabel;
}
// if a new value node was given
if( nv != NULL )
{
// the new child node should not already be linked to a parent
assert( nv->ownerPtr == NULL );
// if the new value is an obj or array then the new
// value node type id should be the same
assert( newTypeId==kPairTId || newTypeId==nv->typeId );
//
cmJsonNode_t* pp = newTypeId==kPairTId ? newValueNodePtr : pairNodePtr;
assert( pp->typeId == kPairTId );
// link in the child to the pair
if((rc = _cmJsonLinkInChild(p,pp,nv)) != kOkJsRC )
goto errLabel;
}
}
break;
// All cases below follow the same pattern:
// 1. Set the type id to the replacement value type id
// 2. Assign the value to the node.
// This sequence is safe because all resources were freed
// by the earlier switch.
case kStringTId:
valNodePtr->typeId = kStringTId;
_cmJsonSetString( p, valNodePtr, sv, strlen(sv) );
break;
case kIntTId:
valNodePtr->typeId =kIntTId;
valNodePtr->u.intVal = iv;
break;
case kRealTId:
valNodePtr->typeId = kRealTId;
valNodePtr->u.realVal = dv;
break;
case kTrueTId:
valNodePtr->typeId = kTrueTId;
valNodePtr->u.boolVal = true;
break;
case kFalseTId:
valNodePtr->typeId = kFalseTId;
valNodePtr->u.boolVal = false;
break;
case kNullTId:
valNodePtr->typeId = kNullTId;
break;
default:
{ assert(0); }
}
errLabel:
if( rc == kOkJsRC )
{
if( retNodePtrPtr != NULL )
*retNodePtrPtr = pairNodePtr;
p->modifiedFl = true;
}
return rc;
}
cmJsonNode_t* cmJsonInsertOrReplacePair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, unsigned typeId, const char* sv, int iv, double dv, cmJsonNode_t* nv )
{
cmJsonNode_t* retNodePtr = NULL;
_cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,typeId,sv,iv,dv,nv,true,&retNodePtr );
return retNodePtr;
}
cmJsonNode_t* cmJsonInsertOrReplacePairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newObjNodePtr )
{
cmJsonNode_t* pairPtr;
if((pairPtr = cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kObjectTId,NULL,0,0,newObjNodePtr)) == NULL )
return NULL;
return pairPtr->u.childPtr->siblingPtr;
}
cmJsonNode_t* cmJsonInsertOrReplacePairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newArrayNodePtr )
{
cmJsonNode_t* pairPtr;
if((pairPtr = cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kArrayTId,NULL,0,0,newArrayNodePtr)) == NULL )
return NULL;
return pairPtr->u.childPtr->siblingPtr;
}
cmJsonNode_t* cmJsonInsertOrReplacePairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* newPairLabel, cmJsonNode_t* newPairValNodePtr )
{
cmJsonNode_t* pairPtr;
if((pairPtr = cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kPairTId,newPairLabel,0,0,newPairValNodePtr)) == NULL )
return NULL;
return pairPtr->u.childPtr->siblingPtr;
}
cmJsRC_t cmJsonInsertOrReplacePairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, int intVal )
{ return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kIntTId,NULL,intVal,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonInsertOrReplacePairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, double realVal )
{ return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kRealTId,NULL,0,realVal,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonInsertOrReplacePairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* stringVal )
{ return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kStringTId,stringVal,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonInsertOrReplacePairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, bool boolVal )
{ return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,boolVal ? kTrueTId : kFalseTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonInsertOrReplacePairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask )
{ return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kNullTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsonNode_t* cmJsonReplacePair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, unsigned newTypeId, const char* sv, int iv, double dv, cmJsonNode_t* nv )
{
cmJsonNode_t* retNodePtr = NULL;
_cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,newTypeId,sv,iv,dv,nv,false,&retNodePtr );
return retNodePtr;
}
cmJsonNode_t* cmJsonReplacePairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newPairNodePtr )
{
cmJsonNode_t* pairPtr;
if((pairPtr = cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kObjectTId,NULL,0,0,newPairNodePtr)) == NULL )
return NULL;
return pairPtr->u.childPtr->siblingPtr;
}
cmJsonNode_t* cmJsonReplacePairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newArrayNodePtr )
{
cmJsonNode_t* pairPtr;
if((pairPtr = cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kArrayTId,NULL,0,0,newArrayNodePtr)) == NULL )
return NULL;
return pairPtr->u.childPtr->siblingPtr;
}
cmJsonNode_t* cmJsonReplacePairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* newPairLabel, cmJsonNode_t* newPairValNodePtr )
{
cmJsonNode_t* pairPtr;
if((pairPtr = cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kPairTId,newPairLabel,0,0,newPairValNodePtr)) == NULL )
return NULL;
return pairPtr->u.childPtr->siblingPtr;
}
cmJsRC_t cmJsonReplacePairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, int intVal )
{ return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kIntTId,NULL,intVal,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonReplacePairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, double realVal )
{ return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kRealTId,NULL,0,realVal,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonReplacePairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* stringVal )
{ return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kStringTId,stringVal,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonReplacePairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, bool boolVal )
{ return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,boolVal ? kTrueTId : kFalseTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonReplacePairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask )
{ return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kNullTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
cmJsRC_t cmJsonVInsertPairs( cmJsonH_t h, cmJsonNode_t* objNodePtr, va_list vl )
{
cmJsRC_t rc = kOkJsRC;
assert( objNodePtr->typeId == kObjectTId );
const char* label;
while( ((label = va_arg(vl,const char*)) != NULL) && (rc == kOkJsRC) )
{
unsigned sel = va_arg(vl,unsigned);
switch( sel )
{
case kObjectTId:
if( cmJsonInsertPairObject(h,objNodePtr,label) == NULL )
rc = cmJsonErrorCode(h);
break;
case kArrayTId:
if( cmJsonInsertPairArray(h,objNodePtr,label) == NULL )
rc = cmJsonErrorCode(h);
break;
case kPairTId:
if( cmJsonInsertPairPair(h,objNodePtr,label, va_arg(vl,const char*)) == NULL )
rc = cmJsonErrorCode(h);
break;
case kIntTId:
rc = cmJsonInsertPairInt(h,objNodePtr,label, va_arg(vl,int) );
break;
case kRealTId:
rc = cmJsonInsertPairReal(h,objNodePtr,label, va_arg(vl,double) );
break;
case kStringTId:
rc = cmJsonInsertPairString(h,objNodePtr,label, va_arg(vl,const char *) );
break;
case kTrueTId:
case kFalseTId:
case kBoolTId:
rc = cmJsonInsertPairBool(h,objNodePtr,label, va_arg(vl,int) );
break;
case kNullTId:
rc = cmJsonInsertPairNull(h,objNodePtr,label );
break;
default:
// missing terminating NULL on the var args list???
assert(0);
break;
}
}
return rc;
}
cmJsRC_t cmJsonInsertPairs( cmJsonH_t h, cmJsonNode_t* objectNodePtr, ... )
{
va_list vl;
va_start(vl,objectNodePtr);
cmJsRC_t rc = cmJsonVInsertPairs(h,objectNodePtr,vl);
va_end(vl);
return rc;
}
cmJsonNode_t* cmJsonVCreateFilledObject( cmJsonH_t h, cmJsonNode_t* parentPtr, va_list vl )
{
cmJsonNode_t* np;
if((np = cmJsonCreateObject(h,parentPtr)) == NULL)
return NULL;
if( cmJsonVInsertPairs(h,np,vl) != kOkJsRC )
{
cmJsonRemoveNode(h,np,true);
return NULL;
}
return np;
}
cmJsonNode_t* cmJsonCreateFilledObject( cmJsonH_t h, cmJsonNode_t* parentPtr, ... )
{
va_list vl;
va_start(vl,parentPtr);
cmJsonNode_t* np = cmJsonVCreateFilledObject(h,parentPtr,vl);
va_end(vl);
return np;
}
void _cmJsonFreeNode( cmJs_t* p, cmJsonNode_t* np )
{
switch( np->typeId )
{
case kObjectTId:
case kPairTId:
case kArrayTId:
{
cmJsonNode_t* cnp = np->u.childPtr;
while( cnp != NULL )
{
cmJsonNode_t* nnp = cnp->siblingPtr;
_cmJsonFreeNode(p,cnp);
cnp = nnp;
}
}
break;
case kStringTId:
if( np->u.stringVal != NULL )
cmLHeapFree(p->heapH,np->u.stringVal);
break;
}
cmLHeapFree(p->heapH,np);
}
cmJsRC_t _cmJsonRemoveNode( cmJs_t* p, cmJsonNode_t* np, bool freeFl, bool balancePairsFl )
{
if(np == NULL )
return kOkJsRC;
cmJsonNode_t* parentPtr = np->ownerPtr;
// if np is the root ...
if( np == p->rootPtr )
{
// ... we only need to set the root to null to remove the node.
p->rootPtr = NULL;
}
else
{
if( parentPtr != NULL )
{
// get the parents first child
cmJsonNode_t* cnp = parentPtr->u.childPtr;
// if np is the first child then make the second child the first child
if( cnp == np )
{
if( parentPtr->typeId == kPairTId )
return _cmJsonError( p, kCannotRemoveLabelJsRC, "Cannot remove pair label nodes because this would invalidate the tree structure.");
parentPtr->u.childPtr = cnp->siblingPtr;
}
else
{
// otherwise unlink it from the child chain
while( cnp != NULL )
{
if( cnp->siblingPtr == np )
{
cnp->siblingPtr = np->siblingPtr;
// if the parent is a pair then the removed node is a
// 'pair value' which must be replaced with a null node in order
// to maintain a valid tree.
if( (parentPtr->typeId == kPairTId) && balancePairsFl)
_cmJsonCreateNull( p, parentPtr, NULL );
break;
}
cnp = cnp->siblingPtr;
}
assert( cnp != NULL );
}
}
}
// if the memory assoc'd with the removed node should be released
if( freeFl )
{
_cmJsonFreeNode(p,np);
/*
if( np->typeId == kStringTId )
{
cmLHeapFree(p->heapH,np->u.stringVal);
np->u.stringVal = NULL;
}
cmLHeapFree(p->heapH,np);
*/
}
p->modifiedFl = true;
return kOkJsRC;
}
cmJsRC_t cmJsonRemoveNode( cmJsonH_t h, cmJsonNode_t* np, bool freeFl )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonRemoveNode( p, np, freeFl, true );
}
cmJsRC_t _cmJsonValidateErr( cmJs_t* p, const char* text )
{
if( p != NULL )
return _cmJsonSyntaxError(p,text);
return kValidateFailJsRC;
}
// 'p' is optional. If 'p' is set to NULL the function will return kValidFailJsRC if the
// tree rooted at 'np' is invalid and will not print an error message.
cmJsRC_t _cmJsonValidateNode( cmJs_t* p, const cmJsonNode_t* np, const cmJsonNode_t* parentPtr )
{
cmJsRC_t rc = kOkJsRC;
if( parentPtr != np->ownerPtr )
return _cmJsonValidateErr(p,"A child->parent link does not agree with a parent->child link.");
if( parentPtr == NULL )
{
if( np->typeId != kArrayTId && np->typeId != kObjectTId )
return _cmJsonValidateErr(p,"Only 'array' and 'object' nodes may be the root element.");
}
else
{
if( parentPtr->typeId != kArrayTId && parentPtr->typeId != kObjectTId && parentPtr->typeId != kPairTId )
return _cmJsonValidateErr(p,"Parent nodes must be either 'object','array' or 'pair' nodes.");
}
switch( np->typeId )
{
case kPairTId:
if( cmJsonChildCount(np) != 2 )
return _cmJsonValidateErr(p,"'pair' nodes must have exactly two children.");
if( np->u.childPtr->typeId != kStringTId )
return _cmJsonValidateErr(p,"The first child of 'pair' nodes must be a 'string' node.");
// fall through
case kObjectTId:
case kArrayTId:
{
// validate each child node
cmJsonNode_t* cnp = np->u.childPtr;
while(cnp != NULL)
{
if( cnp->ownerPtr != np )
return _cmJsonValidateErr(p,"A parent->child pointer was not validated with a child->parent pointer.");
if( np->typeId == kObjectTId && cnp->typeId != kPairTId )
return _cmJsonValidateErr(p,"All 'object' child nodes must be 'pair' nodes.");
if((rc = _cmJsonValidateNode(p,cnp,np)) != kOkJsRC )
return rc;
cnp = cnp->siblingPtr;
}
}
break;
case kStringTId:
case kIntTId:
case kRealTId:
case kNullTId:
case kTrueTId:
case kFalseTId:
default:
break;
}
return rc;
}
cmJsRC_t cmJsonValidateTree( cmJsonH_t h )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonValidateNode(p,p->rootPtr,NULL);
}
cmJsRC_t cmJsonValidate( const cmJsonNode_t* np )
{ return _cmJsonValidateNode(NULL,np,np->ownerPtr); }
cmJsonNode_t* _cmJsonDuplicateNode( cmJs_t* p, const cmJsonNode_t* np, cmJsonNode_t* parentPtr )
{
cmJsonNode_t* newParentPtr = NULL;
cmJsonNode_t* newNodePtr = NULL;
cmJsRC_t rc = kOkJsRC;
switch( np->typeId )
{
case kObjectTId:
case kArrayTId:
rc = _cmJsonCreateNode(p,parentPtr,np->typeId,&newParentPtr);
break;
case kPairTId:
rc = _cmJsonCreatePair(p,parentPtr,np->u.childPtr->u.stringVal,&newParentPtr);
break;
case kIntTId:
rc = _cmJsonCreateInt(p,parentPtr,np->u.intVal,&newNodePtr);
break;
case kRealTId:
rc = _cmJsonCreateReal(p,parentPtr,np->u.realVal,&newNodePtr);
break;
case kStringTId:
rc = _cmJsonCreateString(p,parentPtr,np->u.stringVal,strlen(np->u.stringVal),&newNodePtr);
break;
case kTrueTId:
case kFalseTId:
rc = _cmJsonCreateBool(p,parentPtr,np->u.boolVal,&newNodePtr);
break;
case kNullTId:
rc = _cmJsonCreateNull(p,parentPtr,&newNodePtr);
}
if( rc != kOkJsRC )
return NULL;
if( newParentPtr != NULL )
{
newNodePtr = newParentPtr;
cmJsonNode_t* cnp = np->u.childPtr;
if(np->typeId == kPairTId)
cnp = np->u.childPtr->siblingPtr;
while( cnp != NULL )
{
if( _cmJsonDuplicateNode(p,cnp,newParentPtr) != kOkJsRC )
return NULL;
cnp = cnp->siblingPtr;
}
}
return newNodePtr;
}
cmJsonNode_t* cmJsonDuplicateNode( cmJsonH_t h, const cmJsonNode_t* np, cmJsonNode_t* parentPtr )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
assert( _cmJsonValidateNode(p,np,NULL) == kOkJsRC );
return _cmJsonDuplicateNode(p,np,parentPtr);
}
cmJsRC_t cmJsonMergeObjectNodes( cmJsonH_t h, cmJsonNode_t* dstObjNodePtr, const cmJsonNode_t* srcObjNodePtr )
{
assert( dstObjNodePtr!=NULL && dstObjNodePtr->typeId == kObjectTId );
assert( srcObjNodePtr!=NULL && srcObjNodePtr->typeId == kObjectTId );
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsonNode_t* cnp = NULL;
const cmJsonNode_t* snp = srcObjNodePtr->u.childPtr;
while( snp!=NULL && rc==kOkJsRC )
{
cmJsonNode_t* dnp;
assert( snp->typeId == kPairTId );
// if the src pair was not found in the dst object ...
if((rc = _cmJsonFindMemberValue(dstObjNodePtr, cmJsonPairLabel(snp), snp->u.childPtr->siblingPtr->typeId, &dnp )) != kOkJsRC )
{
cmJsonNode_t* newPairNodePtr;
// the only acceptable error is kNodeNotFoundJsRC
// (in particular we reject kNodeCannotCvtJsRC to avoid duplicating
// pairs with the same name but different types)
if( rc != kNodeNotFoundJsRC )
goto errLabel;
// create the new pair and attach it to the dst obj node
if((rc = _cmJsonCreatePair(p,dstObjNodePtr,cmJsonPairLabel(snp),&newPairNodePtr)) != kOkJsRC )
goto errLabel;
// duplicate the src pair value node and attcmh it to the new dst node
if( _cmJsonDuplicateNode(p,snp->u.childPtr->siblingPtr,newPairNodePtr) == NULL )
rc = p->rc;
// set kTempJsFl on the new node to use possible cleanup on error later
newPairNodePtr->typeId = cmSetFlag(newPairNodePtr->typeId,kTempJsFl);
}
snp = snp->siblingPtr;
}
errLabel:
// for each dst obj pair
cnp = dstObjNodePtr->u.childPtr;
while( cnp != NULL)
{
// if this child is a new node
if( cmIsFlag(cnp->typeId,kTempJsFl) )
{
// clear the temp fl
cnp->typeId = cmClrFlag(cnp->typeId,kTempJsFl);
// if there was an error remove all new pairs
if( rc != kOkJsRC )
cmJsonRemoveNode(h,cnp,true);
}
cnp = cnp->siblingPtr;
}
return rc;
}
void _cmJsonSerialCopy( cmJsSerial_t* rp, const void* sp, unsigned sn )
{
assert( rp->nextPtr + sn <= rp->endPtr );
memcpy(rp->nextPtr,sp,sn);
rp->nextPtr += sn;
}
cmJsRC_t _cmJsonSerializeNode( const cmJsonNode_t* np, cmJsSerial_t* rp )
{
cmJsRC_t rc = kOkJsRC;
// on the first pass rp->basePtr will be NULL so collect size information
// on the second pass rp->basePtr will be set so copy out data
// write the type id of this node
if( rp->basePtr != NULL )
_cmJsonSerialCopy(rp,&np->typeId,sizeof(np->typeId));
else
rp->hdr.byteCnt += sizeof(np->typeId);
rp->hdr.nodeCnt++;
switch( np->typeId )
{
// write the child count
case kObjectTId:
case kArrayTId:
if( rp->basePtr == NULL )
rp->hdr.byteCnt += sizeof(unsigned);
else
{
unsigned n = cmJsonChildCount( np );
_cmJsonSerialCopy(rp,&n,sizeof(unsigned));
}
// fall through
case kPairTId:
{
cmJsonNode_t* cnp = np->u.childPtr;
while(cnp != NULL )
{
_cmJsonSerializeNode(cnp,rp);
cnp = cnp->siblingPtr;
}
}
break;
case kStringTId:
// write the string contents
if( rp->basePtr == NULL )
rp->hdr.byteCnt += strlen(np->u.stringVal) + 1;
else
_cmJsonSerialCopy( rp, np->u.stringVal, strlen(np->u.stringVal)+1 );
break;
case kIntTId:
// write the int value
if( rp->basePtr == NULL )
rp->hdr.byteCnt += sizeof(np->u.intVal);
else
_cmJsonSerialCopy(rp,&np->u.intVal,sizeof(np->u.intVal));
break;
case kRealTId:
// write the real value
if( rp->basePtr == NULL )
rp->hdr.byteCnt += sizeof(np->u.realVal);
else
_cmJsonSerialCopy(rp, &np->u.realVal, sizeof(np->u.realVal));
break;
}
return rc;
}
unsigned cmJsonSerialByteCount( const cmJsonNode_t* np )
{
cmJsRC_t rc;
cmJsSerial_t vr;
memset(&vr,0,sizeof(vr));
// make a first pass to determine the size of the buffer
if((rc = _cmJsonSerializeNode(np,&vr)) != kOkJsRC )
return rc;
// increment the buffer size to include the buffer header
return (4*sizeof(unsigned)) + vr.hdr.byteCnt;
}
cmJsRC_t cmJsonSerialize( const cmJsonNode_t* np, void* buf, unsigned bufByteCnt )
{
cmJsRC_t rc = kOkJsRC;
cmJsSerial_t vr;
memset(&vr,0,sizeof(vr));
// setup the serial buffer
vr.hdr.id = 'json';
vr.hdr.byteCnt = bufByteCnt - (2*sizeof(unsigned));
vr.hdr.version = 0;
vr.basePtr = buf;
vr.nextPtr = vr.basePtr;
vr.endPtr = vr.basePtr + bufByteCnt;
// write the header recd
_cmJsonSerialCopy(&vr, &vr.hdr.id, sizeof(unsigned));
_cmJsonSerialCopy(&vr, &vr.hdr.byteCnt, sizeof(unsigned));
_cmJsonSerialCopy(&vr, &vr.hdr.nodeCnt, sizeof(unsigned));
_cmJsonSerialCopy(&vr, &vr.hdr.version, sizeof(unsigned));
// copy the node data into the serial buffer
if((rc = _cmJsonSerializeNode(np,&vr)) != kOkJsRC )
return rc;
vr.basePtr = buf;
vr.nextPtr = vr.basePtr;
_cmJsonSerialCopy(&vr, &vr.hdr.id, sizeof(unsigned));
_cmJsonSerialCopy(&vr, &vr.hdr.byteCnt, sizeof(unsigned));
_cmJsonSerialCopy(&vr, &vr.hdr.nodeCnt, sizeof(unsigned));
return rc;
}
cmJsRC_t cmJsonSerializeTree( cmJsonH_t h, const cmJsonNode_t* np, void** bufPtrPtr, unsigned* bufByteCntPtr)
{
cmJsRC_t rc;
cmJsSerial_t vr;
memset(&vr,0,sizeof(vr));
cmJs_t* p = _cmJsonHandleToPtr(h);
assert( bufPtrPtr != NULL && bufByteCntPtr != NULL );
*bufPtrPtr = NULL;
*bufByteCntPtr = 0;
if( np == NULL )
np = p->rootPtr;
// validate the tree
if((rc = _cmJsonValidateNode(p,np,np->ownerPtr)) != kOkJsRC )
return rc;
// increment the buffer size to include the buffer header
p->serialByteCnt = cmJsonSerialByteCount(np);
// allocate the serial buffer memory
p->serialBufPtr = cmMemResize( char, p->serialBufPtr, p->serialByteCnt );
// serialize the tree
if((rc = cmJsonSerialize(np, p->serialBufPtr, p->serialByteCnt )) != kOkJsRC )
return rc;
*bufPtrPtr = p->serialBufPtr;
*bufByteCntPtr = p->serialByteCnt;
return rc;
}
const void* _cmJsonDeserialAdv( cmJsDeserial_t* rp, unsigned n )
{
const void* vp = rp->nextPtr;
rp->nextPtr += n;
assert(rp->nextPtr <= rp->endPtr);
assert(rp->nodeIdx <= rp->nodeCnt);
return vp;
}
int _cmJsonDeserialInt( cmJsDeserial_t* rp )
{ return *(const int*)_cmJsonDeserialAdv(rp,sizeof(int)); }
unsigned _cmJsonDeserialUint( cmJsDeserial_t* rp )
{ return *(const unsigned*)_cmJsonDeserialAdv(rp,sizeof(unsigned)); }
double _cmJsonDeserialReal( cmJsDeserial_t* rp )
{ return *(const double*)_cmJsonDeserialAdv(rp,sizeof(double)); }
cmJsRC_t _cmJsonDeserializeNode( cmJs_t* p, cmJsonNode_t* parentPtr, cmJsDeserial_t* rp )
{
cmJsRC_t rc = kOkJsRC;
unsigned typeId = _cmJsonDeserialUint(rp);
unsigned childCnt = 0;
cmJsonNode_t* newParentPtr = NULL;
rp->nodeIdx++;
switch( typeId )
{
case kPairTId:
rc = _cmJsonCreateNode(p,parentPtr,typeId,&newParentPtr);
childCnt = 2;
break;
case kObjectTId:
case kArrayTId:
rc = _cmJsonCreateNode(p,parentPtr,typeId,&newParentPtr);
childCnt = _cmJsonDeserialUint(rp);
break;
case kStringTId:
{
unsigned sn = strlen(rp->nextPtr);
rc = _cmJsonCreateString( p, parentPtr, rp->nextPtr, sn,NULL);
_cmJsonDeserialAdv(rp,sn+1);
}
break;
case kIntTId:
{
int v = _cmJsonDeserialInt(rp);
rc = _cmJsonCreateInt( p, parentPtr, v, NULL );
}
break;
case kRealTId:
{
double v = _cmJsonDeserialReal(rp);
rc = _cmJsonCreateReal( p, parentPtr, v, NULL );
}
break;
case kNullTId:
rc = _cmJsonCreateNull( p, parentPtr, NULL );
break;
case kTrueTId:
rc = _cmJsonCreateBool( p, parentPtr, true, NULL );
break;
case kFalseTId:
rc = _cmJsonCreateBool( p, parentPtr, false, NULL );
break;
default:
assert(0);
break;
}
if( rc != kOkJsRC )
return rc;
// if the current node is a parent
if( childCnt > 0 )
{
unsigned i;
assert( newParentPtr != NULL );
for(i=0; i<childCnt; ++i)
if((rc= _cmJsonDeserializeNode( p, newParentPtr, rp )) != kOkJsRC )
return rc;
}
return rc;
}
cmJsRC_t _cmJsonDeserialize( cmJs_t* p, const void* vbuf, cmJsonNode_t* altRootPtr )
{
cmJsDeserial_t r;
cmJsonNode_t* rootPtr = altRootPtr == NULL ? p->rootPtr : altRootPtr;
const char* buf = (const char*)vbuf;
memset(&r,0,sizeof(r));
r.nextPtr = buf;
r.endPtr = buf + (4*sizeof(unsigned)); // the buf must at least contain a header
// read the buffer header
unsigned hdrId = _cmJsonDeserialUint(&r);
unsigned byteCnt = _cmJsonDeserialUint(&r);
r.nodeCnt = _cmJsonDeserialUint(&r);
/*unsigned version =*/ _cmJsonDeserialUint(&r);
if( hdrId != 'json' )
return _cmJsonError(p,kSerialErrJsRC,"The buffer does not have the correct header.");
if( byteCnt < (4*sizeof(unsigned)) )
return _cmJsonError(p,kSerialErrJsRC,"The buffer is too small to be contain any information.");
// change the buffer end pointer to the correct size based
// on the the byte count stored in the buffer
r.endPtr = buf + byteCnt + (2*sizeof(unsigned));
return _cmJsonDeserializeNode(p, rootPtr, &r );
}
cmJsRC_t cmJsonDeserialize( cmJsonH_t h, const void* bufPtr, cmJsonNode_t* altRootPtr )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return _cmJsonDeserialize(p,bufPtr,altRootPtr);
}
cmJsRC_t cmJsonLeafToString( const cmJsonNode_t* np, cmChar_t* buf, unsigned bufCharCnt )
{
const char* cp = NULL;
unsigned n = 0;
assert( buf!=NULL && bufCharCnt > 0 );
switch(np->typeId & kMaskTId )
{
case kStringTId:
cp = np->u.stringVal==NULL ? "" : np->u.stringVal;
break;
case kNullTId:
cp = "null";
break;
case kTrueTId:
cp = "true";
break;
case kFalseTId:
cp = "false";
break;
case kIntTId:
n = snprintf(buf,bufCharCnt,"%i",np->u.intVal)+1;
break;
case kRealTId:
n = snprintf(buf,bufCharCnt,"%f",np->u.realVal)+1;
break;
default:
assert(0);
return kInvalidNodeTypeJsRC;
}
if( cp != NULL )
{
n = strlen(cp)+1;
if( bufCharCnt < n )
n = bufCharCnt;
strncpy(buf,cp,n);
/*
n = strlen(np->u.stringVal)+1;
if( bufCharCnt < n )
n = bufCharCnt;
strncpy(buf,np->u.stringVal,n);
*/
}
buf[bufCharCnt-1]=0;
assert( n>0 && n < bufCharCnt );
return n == bufCharCnt ? kBufTooSmallJsRC : kOkJsRC ;
}
cmJsRC_t _cmJsonRptCsvTokErr( cmJs_t* p, unsigned lineNo, cmLexH lexH, const char* iFn )
{
unsigned n = cmMin(31,cmLexTokenCharCount(lexH));
char b[n+1];
strncpy(b,cmLexTokenText(lexH),n);
b[n]=0;
return _cmJsonError( p, kCsvErrJsRC, "Unexpected token '%s' during CSV parse on line %i of '%s'.",b,cmLexCurrentLineNumber(lexH),cmStringNullGuard(iFn));
}
cmJsRC_t _cmJsonRptCsvTypeErr( cmJs_t* p, unsigned lineNo, cmLexH lexH, const char* iFn, const char* actualTypeStr, unsigned expTypeId )
{
unsigned n = cmMin(31,cmLexTokenCharCount(lexH));
char b[n+1];
strncpy(b,cmLexTokenText(lexH),n);
b[n]=0;
return _cmJsonError( p, kCsvErrJsRC, "Unexpected token '%s' during CSV parse on line %i of '%s'.\nExpected type:%s actual type:%s",b,cmLexCurrentLineNumber(lexH),cmStringNullGuard(iFn),_cmJsonNodeTypeIdToLabel(expTypeId),actualTypeStr);
}
cmJsRC_t cmJsonFromCSV( cmJsonH_t h, const char* iFn, cmJsonNode_t* parentNodePtr, cmJsonNode_t** arrayNodePtrPtr )
{
enum
{
kCommaTokId = kUserLexTId+1,
kIntTokId,
kRealTokId,
kTrueTokId,
kFalseTokId,
kStringTokId,
kBoolTokId
};
typedef struct field_str
{
char* fieldLabel;
unsigned typeId;
struct field_str* linkPtr;
} field_t;
cmJsRC_t rc = kOkJsRC;
cmJs_t* p = _cmJsonHandleToPtr(h);
cmLexH lexH = cmLexInit( NULL, 0, 0, p->err.rpt );
field_t* fieldList = NULL;
cmJsonNode_t* arrayNodePtr = NULL;
cmJsonNode_t* objNodePtr = NULL;
unsigned lineNo = 0;
field_t* fieldPtr = NULL;
field_t* lp = NULL;
unsigned tokId;
unsigned fieldIdx = 0;
// validate the init state of the lexer
if( cmLexIsValid(lexH) == false )
{
rc = _cmJsonError( p, kLexErrJsRC, "Lexer initialization failed on CSV parse of '%s'.",cmStringNullGuard(iFn));
goto errLabel;
}
// register CSV specific tokens
cmLexRegisterToken( lexH, kCommaTokId, ",");
cmLexRegisterToken( lexH, kIntTokId, "int");
cmLexRegisterToken( lexH, kRealTokId, "real");
cmLexRegisterToken( lexH, kTrueTokId, "true");
cmLexRegisterToken( lexH, kFalseTokId, "false");
cmLexRegisterToken( lexH, kStringTokId, "string");
cmLexRegisterToken( lexH, kBoolTokId, "bool");
// lex the file
if( cmLexSetFile( lexH, iFn ) != kOkLexRC )
{
rc = _cmJsonError( p, kLexErrJsRC, "Lex failed on CSV parse of '%s'.",cmStringNullGuard(iFn));
goto errLabel;
}
// create the parent array
if((arrayNodePtr = cmJsonCreateArray( h, parentNodePtr )) == NULL )
{
rc = _cmJsonError( p, kCsvErrJsRC, "CSV array create failed during parse of '%s'.",cmStringNullGuard(iFn));
goto errLabel;
}
// iterate through the lexer file
while(((tokId = cmLexGetNextToken(lexH)) != kErrorLexTId) && (tokId != kEofLexTId) )
{
unsigned fieldTypeTokId = kInvalidTId;
switch( cmLexCurrentLineNumber(lexH) )
{
// line 1 contains the field type labels (e.g. int,real,string,true,false,bool)
case 1:
switch(tokId)
{
case kCommaTokId:
break;
case kIntTokId:
fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kIntTId : fieldTypeTokId;
case kRealTokId:
fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kRealTId : fieldTypeTokId;
case kTrueTokId:
fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kTrueTId : fieldTypeTokId;
case kFalseTokId:
fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kFalseTId : fieldTypeTokId;
case kBoolTokId:
fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kFalseTId : fieldTypeTokId;
case kStringTokId:
fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kStringTId : fieldTypeTokId;
// create and intitialize a new field
field_t* rp = cmMemAllocZ( field_t, 1 );
rp->fieldLabel = NULL;
rp->typeId = fieldTypeTokId;
rp->linkPtr = NULL;
// and add it to the end of the field list
if( fieldList == NULL )
fieldList = rp;
else
fieldPtr->linkPtr = rp;
// fieldPtr points to the end of the list
fieldPtr = rp;
break;
default:
rc = _cmJsonRptCsvTokErr( p, 1, lexH, iFn );
goto errLabel;
}
break;
// line 2 contains the field labels
case 2:
if( fieldIdx == 0 )
fieldPtr = fieldList;
++fieldIdx;
switch(tokId)
{
case kCommaTokId:
break;
// all line 2 tokens must be identifiers or q-strings
case kIdentLexTId:
case kQStrLexTId:
if( fieldPtr == NULL )
{
rc = _cmJsonError( p, kCsvErrJsRC, "More fields on line 2 than type specifiers on line 1 of '%s'.",cmStringNullGuard(iFn));
goto errLabel;
}
else
{
// set the field name in the field list
unsigned n = cmLexTokenCharCount(lexH);
fieldPtr->fieldLabel = cmMemAllocZ( char, n+1 );
strncpy(fieldPtr->fieldLabel,cmLexTokenText(lexH),n);
fieldPtr->fieldLabel[n] = 0;
fieldPtr = fieldPtr->linkPtr;
}
break;
default:
rc = _cmJsonRptCsvTokErr( p, 2, lexH, iFn );
goto errLabel;
}
break;
// lines 3 to end of file contain data
default:
{
int ival = 0;
cmReal_t rval = 0;
// if we are starting a new line in the CSV file
if( lineNo != cmLexCurrentLineNumber(lexH) )
{
// verify that field ptr is pointing to the end of the field list
if( fieldPtr != NULL )
{
rc = _cmJsonError( p, kCsvErrJsRC, "Missing columns were detected on line %i in CSV file '%s'.", lineNo, cmStringNullGuard(iFn));
goto errLabel;
}
fieldPtr = fieldList;
lineNo = cmLexCurrentLineNumber(lexH);
// create the object to hold the fields on this line
if((objNodePtr = cmJsonCreateObject( h, arrayNodePtr )) == NULL )
{
rc = _cmJsonError( p, kCsvErrJsRC, "Object node create failed on line %i in CSV file '%s'.",lineNo,cmStringNullGuard(iFn));
goto errLabel;
}
}
if( tokId == kCommaTokId )
continue;
if( fieldPtr == NULL )
{
rc = _cmJsonError( p, kCsvErrJsRC, "More columns than fields on line %i in CSV file '%s'.", lineNo,cmStringNullGuard(iFn));
goto errLabel;
}
// given the tokens type convert the token string into a value
switch(tokId)
{
case kRealLexTId:
#ifdef CM_FLOAT_REAL
rval = cmLexTokenFloat(lexH);
#else
rval = cmLexTokenDouble(lexH);
#endif
ival = (int)rval;
if( fieldPtr->typeId == kStringTId )
{
rc = _cmJsonRptCsvTypeErr(p, lineNo, lexH, iFn, "numeric", fieldPtr->typeId );
goto errLabel;
}
break;
case kIntLexTId:
case kHexLexTId:
ival = cmLexTokenInt(lexH);
rval = ival;
if( fieldPtr->typeId == kStringTId )
{
rc = _cmJsonRptCsvTypeErr(p, lineNo, lexH, iFn, "numeric", fieldPtr->typeId );
goto errLabel;
}
break;
case kTrueTokId:
ival = 1;
rval = 1.0;
break;
case kFalseTokId:
ival = 0;
rval = 0.0;
break;
case kIdentLexTId:
case kQStrLexTId:
if( fieldPtr->typeId != kStringTId )
{
rc = _cmJsonRptCsvTypeErr(p, lineNo, lexH, iFn, "string", fieldPtr->typeId );
goto errLabel;
}
break;
default:
rc = _cmJsonRptCsvTokErr( p, lineNo, lexH, iFn );
goto errLabel;
}
// create the pair object from the current field label and value
switch(fieldPtr->typeId)
{
case kIntTId:
rc = cmJsonInsertPairInt( h, objNodePtr, fieldPtr->fieldLabel, ival );
break;
case kRealTId:
rc = cmJsonInsertPairReal( h, objNodePtr, fieldPtr->fieldLabel, rval );
break;
case kTrueTId:
case kFalseTId:
rc = cmJsonInsertPairBool( h, objNodePtr, fieldPtr->fieldLabel, ival );
break;
case kStringTId:
rc = cmJsonInsertPairStringN( h, objNodePtr, fieldPtr->fieldLabel, cmLexTokenText(lexH), cmLexTokenCharCount(lexH) );
break;
default:
{
assert(0);
goto errLabel;
}
}
if( rc != kOkJsRC )
goto errLabel;
fieldPtr = fieldPtr->linkPtr;
}
break;
}
}
errLabel:
if( cmLexFinal(&lexH) != kOkLexRC )
{
rc = _cmJsonError( p, kLexErrJsRC, "Lexer finalize failed on CSV parse of '%s'.",cmStringNullGuard(iFn));
goto errLabel;
}
lp = fieldList;
while( lp!=NULL )
{
field_t* pp = lp->linkPtr;
cmMemPtrFree(&lp->fieldLabel);
cmMemPtrFree(&lp);
lp = pp;
}
if( rc != kOkJsRC )
_cmJsonRemoveNode( p, arrayNodePtr, true, true );
if( rc == kOkJsRC && arrayNodePtrPtr != NULL )
*arrayNodePtrPtr = arrayNodePtr;
return rc;
}
cmJsRC_t cmJsonToCSV( cmJsonH_t h, const char* oFn, const cmJsonNode_t* arrayNodePtr )
{
assert( arrayNodePtr->typeId == kArrayTId );
typedef struct r_str
{
const char* fieldLabel;
unsigned typeId;
struct r_str* linkPtr;
} field_t;
cmJs_t* p = _cmJsonHandleToPtr(h);
cmJsRC_t rc = kOkJsRC;
unsigned arrayCnt = cmJsonChildCount(arrayNodePtr);
field_t* fieldList = NULL;
FILE* fp = NULL;
field_t* lp = NULL;
unsigned i,j;
// for each object in the array
for(i=0; i<arrayCnt; ++i)
{
const cmJsonNode_t* objNodePtr = cmJsonArrayElementC( arrayNodePtr, i );
assert( objNodePtr->typeId == kObjectTId );
// for each pair in the object
for(j=0; j<cmJsonChildCount(objNodePtr); ++j)
{
const cmJsonNode_t* pairNodePtr = cmJsonArrayElementC( objNodePtr, j );
const char* pairLabel = cmJsonPairLabel(pairNodePtr);
lp = fieldList;
// find this field in the field list
for(; lp != NULL; lp = lp->linkPtr )
if( strcmp(lp->fieldLabel,pairLabel) == 0)
{
unsigned typeId = cmJsonPairTypeId(pairNodePtr);
switch( typeId )
{
case kIntTId:
case kRealTId:
case kTrueTId:
case kFalseTId:
case kStringTId:
break;
default:
rc = _cmJsonError( p, kInvalidNodeTypeJsRC, "Field '%s' has type '%s' which cannot be written by cmJsonToCSV().",cmStringNullGuard(pairLabel),_cmJsonNodeTypeIdToLabel(typeId) );
goto errLabel;
}
if( typeId != lp->typeId )
{
rc = _cmJsonError( p, kInvalidNodeTypeJsRC, "All nodes for a field label '%s' do not have the same type. '%s' != '%s'",cmStringNullGuard(pairLabel), _cmJsonNodeTypeIdToLabel(typeId), _cmJsonNodeTypeIdToLabel(lp->typeId) );
goto errLabel;
}
break;
}
// if this field was not found then insert it
if( lp == NULL )
{
field_t* rp = (field_t*)cmLHeapAlloc(p->heapH,sizeof(field_t));
rp->fieldLabel = pairLabel;
rp->linkPtr = fieldList;
rp->typeId = cmJsonPairTypeId(pairNodePtr);
fieldList = rp;
}
}
}
// create the output file
if((fp = fopen(oFn,"wt")) == NULL )
{
rc = _cmJsonError( p, kFileCreateErrJsRC, "CSV file '%s' create failed.", oFn );
goto errLabel;
}
// write the field type
lp = fieldList;
for(; lp!=NULL; lp=lp->linkPtr)
{
fprintf(fp,"%s", _cmJsonNodeTypeIdToLabel(lp->typeId));
if( lp->linkPtr != NULL )
fprintf(fp,",");
}
fprintf(fp,"\n");
// write the field label
lp = fieldList;
for(; lp!=NULL; lp=lp->linkPtr)
{
fprintf(fp,"\"%s\"", lp->fieldLabel);
if( lp->linkPtr != NULL )
fprintf(fp,",");
}
fprintf(fp,"\n");
// for each object in the array
for(i=0; i<arrayCnt; ++i)
{
unsigned j;
const cmJsonNode_t* objNodePtr = cmJsonArrayElementC( arrayNodePtr, i );
unsigned fieldCnt = cmJsonChildCount(objNodePtr);
lp = fieldList;
// for each field ...
for(j=0; lp!=NULL; lp=lp->linkPtr,++j)
{
cmJsonNode_t* valNodePtr;
// ... locate the pair given the field label
if((valNodePtr = cmJsonFindValue(h,lp->fieldLabel, objNodePtr, lp->typeId )) == NULL)
{
// no pair was found for the field label - output a NULL value
switch( lp->typeId )
{
case kIntTId:
fprintf(fp,"%i",0);
break;
case kRealTId:
fprintf(fp,"%f",0.0);
break;
case kTrueTId:
case kFalseTId:
fprintf(fp,"%i",0);
break;
case kStringTId:
fprintf(fp,"\"\"");
break;
default:
assert(0);
break;
}
//rc = _cmJsonError( p, kNodeNotFoundJsRC,"No field with label '%s' was found.", lp->fieldLabel);
//goto errLabel;
}
else
{
switch( valNodePtr->typeId )
{
case kIntTId:
fprintf(fp,"%i", valNodePtr->u.intVal);
break;
case kRealTId:
fprintf(fp,"%e", valNodePtr->u.realVal);
break;
case kTrueTId:
case kFalseTId:
fprintf(fp,"%i", valNodePtr->u.boolVal);
break;
case kStringTId:
fprintf(fp,"\"%s\"", valNodePtr->u.stringVal);
break;
default:
assert(0);
break;
}
}
if( j < fieldCnt-1 )
fprintf(fp,",");
}
fprintf(fp,"\n");
}
errLabel:
if( fp != NULL )
fclose(fp);
lp = fieldList;
while( lp!=NULL )
{
field_t* pp = lp->linkPtr;
cmLHeapFree(p->heapH,lp);
lp = pp;
}
return rc;
}
void _cmJsonPrintIndent( cmRpt_t* rpt, unsigned indent )
{
if( indent )
{
char spaces[indent+1];
spaces[indent]=0;
memset(spaces,' ',indent);
cmRptPrint(rpt,spaces);
}
}
void _cmJsonPrintNode( const cmJsonNode_t* np, cmRpt_t* rpt, unsigned indent )
{
unsigned childCnt = 0;
char eoObjStr[] = "}";
char eoArrStr[] = "]";
char eoPairStr[] = "\n";
char commaStr[] = ",\n";
char colonStr[] = ": ";
const char* eleStr = NULL;
const char* lastEleStr = NULL;
const char* eoStr = NULL;
unsigned localIndent = 0;
switch(np->typeId)
{
case kObjectTId:
cmRptPrint(rpt,"\n");
_cmJsonPrintIndent(rpt,indent);
cmRptPrint(rpt,"{\n");
childCnt = cmJsonChildCount(np);
eoStr = eoObjStr;
localIndent = 2;
break;
case kArrayTId:
cmRptPrint(rpt,"\n");
_cmJsonPrintIndent(rpt,indent);
cmRptPrint(rpt,"[\n");
childCnt = cmJsonChildCount(np);
eoStr = eoArrStr;
localIndent = 2;
eleStr = commaStr;
lastEleStr = "\n";
break;
case kPairTId:
childCnt = cmJsonChildCount(np);
eleStr = colonStr;
eoStr = eoPairStr;
break;
case kStringTId:
{
const char* fmt0 = "\"%s\" ";
const char* fmt1 = "%s";
const char* fmt = fmt0;
// if this string is the label part of a pair
if( np->u.stringVal != NULL && np->ownerPtr != NULL && cmJsonIsPair(np->ownerPtr) && np->ownerPtr->u.childPtr == np )
{
// and the label has no white space
char* cp = np->u.stringVal;
while( *cp!=0 && isspace(*cp)==false )
++cp;
// then print without quotes
if( *cp == 0 )
fmt = fmt1;
}
cmRptPrintf(rpt,fmt,np->u.stringVal==NULL ? "" : np->u.stringVal);
}
break;
case kIntTId:
cmRptPrintf(rpt,"%i ",np->u.intVal);
break;
case kRealTId:
cmRptPrintf(rpt,"%f ",np->u.realVal);
break;
case kNullTId:
cmRptPrint(rpt,"null ");
break;
case kTrueTId:
cmRptPrint(rpt,"true ");
break;
case kFalseTId:
cmRptPrint(rpt,"false ");
break;
}
if( childCnt )
{
indent += localIndent;
unsigned i;
cmJsonNode_t* cnp = np->u.childPtr;
for(i=0; i<childCnt; ++i)
{
assert(cnp != NULL);
if( np->typeId != kPairTId )
_cmJsonPrintIndent(rpt,indent);
_cmJsonPrintNode(cnp,rpt,indent);
cnp = cnp->siblingPtr;
if( i < childCnt-1 && eleStr != NULL )
cmRptPrint(rpt,eleStr);
if( i == childCnt-1 && lastEleStr != NULL )
cmRptPrint(rpt,lastEleStr);
}
indent -= localIndent;
}
if( eoStr != NULL )
{
_cmJsonPrintIndent(rpt,indent);
cmRptPrint(rpt,eoStr);
}
}
void cmJsonPrintTree( const cmJsonNode_t* np, cmRpt_t* rpt )
{
_cmJsonPrintNode(np,rpt,0);
}
void _cmJsPrintFile(void* cmRptUserPtr, const cmChar_t* text)
{
cmFileH_t* hp = (cmFileH_t*)cmRptUserPtr;
cmFilePrint(*hp,text);
}
cmJsRC_t cmJsonWrite( cmJsonH_t h, const cmJsonNode_t* np, const cmChar_t* fn )
{
cmRpt_t rpt;
cmFileH_t fh = cmFileNullHandle;
cmJs_t* p = _cmJsonHandleToPtr(h);
if( np == NULL )
np = cmJsonRoot(h);
// create the output file
if( cmFileOpen(&fh,fn,kWriteFileFl,p->err.rpt) != kOkFileRC )
return _cmJsonError( p, kFileCreateErrJsRC, "Output file '%s' create failed.", fn );
// setup a reporter to write to the file
cmRptSetup(&rpt,_cmJsPrintFile,_cmJsPrintFile,&fh);
// print the tree to the file
cmJsonPrintTree(np,&rpt);
// close the file
if( cmFileClose(&fh) != kOkFileRC )
return _cmJsonError( p, kFileCloseErrJsRC, "Output file '%s' close failed.", fn );
return kOkJsRC;
}
cmJsRC_t cmJsonReport( cmJsonH_t h )
{
cmJsRC_t rc;
cmJs_t* p = _cmJsonHandleToPtr(h);
if((rc = cmJsonValidateTree(h)) != kOkJsRC )
return rc;
if(p->rootPtr != NULL )
_cmJsonPrintNode(p->rootPtr,p->err.rpt,0);
return rc;
}
cmJsRC_t cmJsonErrorCode( cmJsonH_t h )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
return p->rc;
}
void cmJsonClearErrorCode( cmJsonH_t h )
{
cmJs_t* p = _cmJsonHandleToPtr(h);
p->rc = kOkJsRC;
}
void _cmJsonTestVPrint( void* rptDataPtr, const char* fmt, va_list vl )
{
vfprintf(stdout,fmt,vl);
}
void _cmJsonTestPrint( void* userPtr, const cmChar_t* text )
{
fputs(text,stdout);
}
//{ { label:cmJsonEx }
//(
// cmJsonTest() demonstrates some JSON tree operations.
//)
//[
cmJsRC_t cmJsonTest( const char* fn, cmCtx_t* ctx )
{
cmJsRC_t rc = kOkJsRC;
cmJsRC_t rc1 = kOkJsRC;
cmJsonH_t h = cmJsonNullHandle;
cmJsonH_t h1 = cmJsonNullHandle;
void* sbp = NULL;
unsigned sbn = 0;
cmJsonNode_t* np = NULL;
cmRpt_t* rpt = &ctx->rpt;
// initialize an empty JSON tree
if((rc = cmJsonInitialize(&h,ctx)) != kOkJsRC )
goto errLabel;
// load the tree from a file
if((rc = cmJsonParseFile(h,fn,NULL)) != kOkJsRC )
goto errLabel;
// print the tree
cmJsonReport(h);
// find an array member named 'mem14'
if((np = cmJsonFindValue(h,"mem14",NULL,kArrayTId)) == NULL )
cmRptPrint(rpt,"'mem14' not found.\n");
else
{
cmRptPrint(rpt,"'mem14' found.\n");
cmJsonPrintTree(np,rpt);
}
// remove the array node from the tree
cmJsonRemoveNode(h,np, true);
cmRptPrint(rpt,"mem14 removed.\n");
// print the tree with the array node removed
cmJsonPrintTree( cmJsonRoot(h), rpt );
// serialize the tree into a dynamically allocated
// buffer sbp[sbn].
if((rc = cmJsonSerializeTree(h,NULL,&sbp,&sbn)) != kOkJsRC )
goto errLabel;
else
cmRptPrint(rpt,"***Serialize Ok.****\n");
// initialize an empty JSON tree
if((rc = cmJsonInitialize(&h1,ctx)) != kOkJsRC )
goto errLabel;
// deserialize sbp[sbn] into the empty tree
if((rc = cmJsonDeserialize(h1,sbp,NULL)) != kOkJsRC )
goto errLabel;
else
{
cmJsonPrintTree( cmJsonRoot(h1),rpt);
cmRptPrint(rpt,"***Deserialize Ok.****\n");
}
// find an member node named 'mem5'
if((np = cmJsonFindValue(h,"mem5",NULL,0)) == NULL )
cmRptPrint(rpt,"mem5 not found.");
// merge two sub-trees
if( cmJsonMergeObjectNodes( h, np->u.childPtr,
np->u.childPtr->siblingPtr) != kOkJsRC )
{
cmRptPrint(rpt,"merge failed.");
}
else
{
cmJsonReport(h);
}
errLabel:
// release the JSON trees
rc = cmJsonFinalize(&h);
rc1 = cmJsonFinalize(&h1);
return rc == kOkJsRC ? rc1 : rc;
}
//]
//}
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