511 rivejä
27 KiB
C
511 rivejä
27 KiB
C
#ifndef cmJson_h
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#define cmJson_h
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#ifdef __cplusplus
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extern "C" {
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#endif
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//{
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//(
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//
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// Limitations:
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//
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// 1. Accpets two digit hex sequences with
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// the \\u escape command. JSON specifies 4 digits.
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//
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// 2. The scientific notation for real numbers is limited to
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// exponent prefixes: e,E,e-,E-. The prefixes e+ and E+ are
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// not recognized by cmLex.
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//
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// Extensions:
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//
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// 1. Will accept C style identifiers where JSON demands
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// quoted strings.
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//
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// 2. Will accept C style hex notation (0xddd) for integer values.
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//
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//)
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//(
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// JSON data type flags
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enum
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{
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kInvalidTId = 0x0000,
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kObjectTId = 0x0001, // children are pairs
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kPairTId = 0x0002, // children are string : value pairs
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kArrayTId = 0x0004, // children may be of any type
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kStringTId = 0x0008, // terminal
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kNullTId = 0x0040, // terminal
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kIntTId = 0x0010, // terminal
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kRealTId = 0x0020, // terminal
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kTrueTId = 0x0080, // terminal
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kFalseTId = 0x0100, // terminal
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kMaskTId = 0x01ff,
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kOptArgJsFl = 0x0800, // only used by cmJsonVMemberValues()
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kTempJsFl = 0x1000, // used internally
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kNumericTId = kIntTId | kRealTId | kTrueTId | kFalseTId,
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kBoolTId = kTrueTId | kFalseTId
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};
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enum
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{
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kOkJsRC,
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kMemAllocErrJsRC,
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kLexErrJsRC,
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kSyntaxErrJsRC,
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kFileOpenErrJsRC,
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kFileCreateErrJsRC,
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kFileReadErrJsRC,
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kFileSeekErrJsRC,
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kFileCloseErrJsRC,
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kInvalidHexEscapeJsRC,
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kSerialErrJsRC,
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kNodeNotFoundJsRC,
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kNodeCannotCvtJsRC,
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kCannotRemoveLabelJsRC,
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kInvalidNodeTypeJsRC,
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kValidateFailJsRC,
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kCsvErrJsRC,
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kBufTooSmallJsRC
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};
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typedef unsigned cmJsRC_t;
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typedef cmHandle_t cmJsonH_t;
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// JSON tree node
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typedef struct cmJsonNode_str
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{
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unsigned typeId; // id of this node
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struct cmJsonNode_str* siblingPtr; // next ele in array or member list
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struct cmJsonNode_str* ownerPtr; // parent node ptr
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union
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{
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// childPtr usage:
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// object: first pair
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// array: first element
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// pair: string
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struct cmJsonNode_str* childPtr;
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int intVal; // valid if typeId == kIntTId
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double realVal; // valid if typeId == kRealTId
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char* stringVal; // valid if typeId == kStringTId
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bool boolVal; // valid if typeId == kTrueTId || kFalseTId
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} u;
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} cmJsonNode_t;
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extern cmJsonH_t cmJsonNullHandle;
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// Initialize a json parser/tree object
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cmJsRC_t cmJsonInitialize( cmJsonH_t* hp, cmCtx_t* ctx );
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// Equivalent to cmJsonInitialize() followed by cmJsonParseFile()
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cmJsRC_t cmJsonInitializeFromFile( cmJsonH_t* hp, const char* fn, cmCtx_t* ctx );
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// Equivalent to cmJsonInitialize() followed by cmJsonParse(h,buf,cnt,NULL).
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cmJsRC_t cmJsonInitializeFromBuf( cmJsonH_t* hp, cmCtx_t* ctx, const char* buf, unsigned bufByteCnt );
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// Release all the resources held by the tree.
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cmJsRC_t cmJsonFinalize( cmJsonH_t* hp );
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// Returns true if 'h' is a valid cmJsonH_t handle.
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bool cmJsonIsValid( cmJsonH_t h );
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// Returns true if the tree has been modified since it was initialized.
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// If changes to the tree are done directly on the nodes, rather than using
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// the API functions, then this function may not indicate the actual
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// modification state of the tree.
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bool cmJsonIsModified( cmJsonH_t h );
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// Build the internal tree by parsing a text buffer.
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// altRootPtr is an optional alternate root ptr which can be used
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// append to an existing tree. Set to altRootPtr to
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// NULL to append the tree to the internal root.
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// If altRootPtr is given it must point ot either an array or
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// object node.
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cmJsRC_t cmJsonParse( cmJsonH_t h, const char* buf, unsigned bufCharCnt, cmJsonNode_t* altRootPtr );
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// Fills a text buffer from a file and calls cmJsonParse().
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cmJsRC_t cmJsonParseFile( cmJsonH_t h, const char* fn, cmJsonNode_t* altRootPtr );
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// Return the root node of the internal tree.
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cmJsonNode_t* cmJsonRoot( cmJsonH_t h );
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// Return the tree to the post initialize state by clearing the internal tree.
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cmJsRC_t cmJsonClearTree( cmJsonH_t h );
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// Node type predicates.
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bool cmJsonIsObject( const cmJsonNode_t* np );
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bool cmJsonIsArray( const cmJsonNode_t* np );
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bool cmJsonIsPair( const cmJsonNode_t* np );
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bool cmJsonIsString( const cmJsonNode_t* np );
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bool cmJsonIsInt( const cmJsonNode_t* np );
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bool cmJsonIsReal( const cmJsonNode_t* np );
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bool cmJsonIsBool( const cmJsonNode_t* np );
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// Return the count of child nodes of 'np'.
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// Note that only object,array, and pair nodes have children.
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unsigned cmJsonChildCount( const cmJsonNode_t* np );
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// Return the node at 'index' from an element array.
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// 'np must point to an array element.
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cmJsonNode_t* cmJsonArrayElement( cmJsonNode_t* np, unsigned index );
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const cmJsonNode_t* cmJsonArrayElementC( const cmJsonNode_t* np, unsigned index );
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// Return the child value node of a pair with a label node equal to 'label'.
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// Set 'root' to NULL to begin the search at the internal tree root node.
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// Set 'typeIdMask' with all type flags to match.
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// If 'typeIdMask' is equal to kInvalidTId then all types will match.
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cmJsonNode_t* cmJsonFindValue( cmJsonH_t h, const char* label, const cmJsonNode_t* root, unsigned typeIdMask );
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// Return the value node of a pair at the end of an object path.
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// 'path' is a '/' seperated list of object names where the final
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// object specifies the pair label for the value to return.
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const cmJsonNode_t* cmJsonFindPathValueC( cmJsonH_t h, const char* path, const cmJsonNode_t* root, unsigned typeIdMask );
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cmJsonNode_t* cmJsonFindPathValue( cmJsonH_t h, const char* path, const cmJsonNode_t* root, unsigned typeIdMask );
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// Return the node value. If 'np' does not point to the same type as
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// specified in '*retPtr' then the value is converted if possible.
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// If the value cannot be converted function returns a 'kNodeCannotCvtJsRC'
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// error
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cmJsRC_t cmJsonUIntValue( const cmJsonNode_t* np, unsigned* retPtr );
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cmJsRC_t cmJsonIntValue( const cmJsonNode_t* np, int* retPtr );
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cmJsRC_t cmJsonRealValue( const cmJsonNode_t* np, double* retPtr );
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cmJsRC_t cmJsonBoolValue( const cmJsonNode_t* np, bool* retPtr );
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cmJsRC_t cmJsonStringValue( const cmJsonNode_t* np, const char ** retPtrPtr );
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cmJsRC_t cmJsonPairNode( const cmJsonNode_t* vp, cmJsonNode_t ** retPtrPtr );
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cmJsRC_t cmJsonArrayNode( const cmJsonNode_t* vp, cmJsonNode_t ** retPtrPtr );
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cmJsRC_t cmJsonObjectNode( const cmJsonNode_t* vp, cmJsonNode_t ** retPtrPtr );
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// Return the label from a pair object.
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const char* cmJsonPairLabel( const cmJsonNode_t* pairPtr );
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unsigned cmJsonPairTypeId( const cmJsonNode_t* pairPtr );
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cmJsonNode_t* cmJsonPairValue( cmJsonNode_t* pairPtr );
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// Return values associated with the member values in the object
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// pointed to by object objectNodePtr.
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cmJsRC_t cmJsonUIntMember( const cmJsonNode_t* objectNodePtr, const char* label, unsigned* retPtr );
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cmJsRC_t cmJsonIntMember( const cmJsonNode_t* objectNodePtr, const char* label, int* retPtr );
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cmJsRC_t cmJsonRealMember( const cmJsonNode_t* objectNodePtr, const char* label, double* retPtr );
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cmJsRC_t cmJsonBoolMember( const cmJsonNode_t* objectNodePtr, const char* label, bool* retPtr );
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cmJsRC_t cmJsonStringMember( const cmJsonNode_t* objectNodePtr, const char* label, const char** retPtrPtr );
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// Returns array or object nodes.
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cmJsRC_t cmJsonNodeMember( const cmJsonNode_t* objectNodePtr, const char* label, cmJsonNode_t** nodePtrPtr );
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// Returns the value of the member pair named by 'label' or NULL if the
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// named pair does not exist.
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cmJsonNode_t* cmJsonNodeMemberValue( const cmJsonNode_t* np, const char* label );
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// Return values for specified pairs from an object node.
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//
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// The var args syntax is: <label>,<typeId>,<valuePtr>.
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// This functionis implemented in terms of cmJsonXXXMember().
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//
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// Add kOptArgJsFl to <typeId> if the member may not exist in
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// the object - otherwise the function will fail with a
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// kNodeNotFoundJsRC error and errLabelPtr will have the name of the missing pair.
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//
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// Terminate the var args list with NULL.
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//
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// Object,Array, and Pair members are returned as node pointers.
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//
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// Since kBoolTId does not exist use kTrueTId or kFalseTId to
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// return bool values.
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cmJsRC_t cmJsonVMemberValues(const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, va_list vl );
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cmJsRC_t cmJsonMemberValues( const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, ... );
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// If objectNodePtr is set to NULL then the tree root is used as the base for the search.
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// pathPrefix may be set to NULL.
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cmJsRC_t cmJsonPathToValueNode( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, const cmJsonNode_t** nodePtrPtr );
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cmJsRC_t cmJsonPathToBool( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, bool* retValPtr );
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cmJsRC_t cmJsonPathToInt( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, int* retValPtr );
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cmJsRC_t cmJsonPathToUInt( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, unsigned* retValPtr );
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cmJsRC_t cmJsonPathToReal( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, double* retValPtr );
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cmJsRC_t cmJsonPathToString( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, const char** retValPtr );
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cmJsRC_t cmJsonPathToPair( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr );
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cmJsRC_t cmJsonPathToArray( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr );
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cmJsRC_t cmJsonPathToObject( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr );
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// Same as cmJsonMemberValues() except labels may be paths to a given variable.
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// These paths are equivalent to those used in cmJsonFindPathValue()
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// If objectNodePtr is NULL then the JSON tree root is used as the
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// base reference object.
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// If pathPrefix is non-NULL then it is appended to each of the
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// individual paths.
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cmJsRC_t cmJsonVPathValues(cmJsonH_t h, const char* pathPrefix, const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, va_list vl );
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cmJsRC_t cmJsonPathValues( cmJsonH_t h, const char* pathPrefix, const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, ... );
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// Set 'typeId' to the type of the new node.
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// Use 'intVal' for the value of int nodes.
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// Use 'realVal' for the value of real nodes.
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// Use 'stringVal' for the label of pairs and the value of string nodes.
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// 'retNodePtrPtr' is optional
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cmJsRC_t cmJsonCreate( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned typeId, const char* stringVal, int intVal, double realVal, cmJsonNode_t** newNodePtrPtr );
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// Insert new nodes in the tree. If the tree is empty then the first
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// inserted node will become the root (this must be an object or array node.).
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cmJsonNode_t* cmJsonCreateObject( cmJsonH_t h, cmJsonNode_t* parentPtr );
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cmJsonNode_t* cmJsonCreateArray( cmJsonH_t h, cmJsonNode_t* parentPtr );
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cmJsonNode_t* cmJsonCreatePair( cmJsonH_t h, cmJsonNode_t* parentPtr, const char* label );
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cmJsRC_t cmJsonCreateString( cmJsonH_t h, cmJsonNode_t* parentPtr, const char* stringValue );
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cmJsRC_t cmJsonCreateStringN(cmJsonH_t h, cmJsonNode_t* parentPtr, const char* stringValue, unsigned stringCharCnt );
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cmJsRC_t cmJsonCreateInt( cmJsonH_t h, cmJsonNode_t* parentPtr, int value );
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cmJsRC_t cmJsonCreateReal( cmJsonH_t h, cmJsonNode_t* parentPtr, double value );
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cmJsRC_t cmJsonCreateBool( cmJsonH_t h, cmJsonNode_t* parentPtr, bool value );
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cmJsRC_t cmJsonCreateNull( cmJsonH_t h, cmJsonNode_t* parentPtr );
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cmJsRC_t cmJsonCreateStringArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const char** values );
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cmJsRC_t cmJsonCreateIntArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const int* values );
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cmJsRC_t cmJsonCreateRealArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const double* values );
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cmJsRC_t cmJsonCreateBoolArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const bool* values );
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//--------------------------------------------------------------------------------------------------------------
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//
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// Tree creation helper functiosn
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//
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cmJsRC_t cmJsonSetInt( cmJsonH_t h, cmJsonNode_t* np, int ival );
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cmJsRC_t cmJsonSetReal( cmJsonH_t h, cmJsonNode_t * np, double rval );
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cmJsRC_t cmJsonSetBool( cmJsonH_t h, cmJsonNode_t * np, bool bval );
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cmJsRC_t cmJsonSetString( cmJsonH_t h, cmJsonNode_t* np, const char* sval );
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// Insert a pair with a value indicated by 'typeId'.
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// 'stringVal','intVal' and 'realVal' are used as in cmJsonCreate().
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// Return a pointer to the new pair.
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cmJsonNode_t* cmJsonInsertPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned typeId, const char* stringVal, int intVal, double realVal );
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// Create a pair node and the associated label and value nodes and insert the pair in a parent object.
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// The object,array and pair creation functions return pointers to the pair value node.
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// These are helper functions that are implemented in terms of cmJsonCreateXXX() function.
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cmJsonNode_t* cmJsonInsertPairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label );
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cmJsonNode_t* cmJsonInsertPairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label );
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cmJsonNode_t* cmJsonInsertPairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* pairLabel );
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cmJsRC_t cmJsonInsertPairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, int intVal );
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cmJsRC_t cmJsonInsertPairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, double realVal );
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cmJsRC_t cmJsonInsertPairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* string );
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cmJsRC_t cmJsonInsertPairStringN(cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* string, unsigned stringCharCnt );
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cmJsRC_t cmJsonInsertPairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, bool boolVal );
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cmJsRC_t cmJsonInsertPairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label );
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cmJsRC_t cmJsonInsertPairIntArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const int* values );
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cmJsRC_t cmJsonInsertPairRealArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const double* values );
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cmJsRC_t cmJsonInsertPairStringArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const char** values );
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cmJsRC_t cmJsonInsertPairBoolArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const bool* values );
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// Returns pair pointer
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cmJsonNode_t* cmJsonInsertPairIntArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const int* values );
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cmJsonNode_t* cmJsonInsertPairRealArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const double* values );
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cmJsonNode_t* cmJsonInsertPairStringArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const char** values );
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cmJsonNode_t* cmJsonInsertPairBoolArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const bool* values );
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// Insert a pair (same as cmJsonInsertPair()) or if a pair
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// with a matching label/type already exists then replace the
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// existing value with a the new value.
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//
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// Set matchTypeMask with the type id's of all pair value types
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// which sould be considered a match. If matchTypeMask is set to
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// kInvalidTId then all value types will match.
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//
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// Return a pointer to the new or existing pair.
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//
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// When newTypeId == kObjectTId or kArrayTId then 'nv' may optionally be set to an object or array
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// to be set as the new value node for the selected pair. If 'nv' is NULL then an empty array or
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// object is created as the pair value node.
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//
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// When newTypeId == kPairTId then we are inserting/replacing a pair as the value of the selected pair.
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// In this case sv must be set to the new pair label. 'nv' may be optionally
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// set to a new pair value node. If 'nv' is NULL then the the new pair will have a value of type kNullTId
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cmJsonNode_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 );
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// Returns pointer to object node.
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cmJsonNode_t* cmJsonInsertOrReplacePairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newObjNodePtr );
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// Returns pointer to array node.
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cmJsonNode_t* cmJsonInsertOrReplacePairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newArrayNodePtr );
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// Returns pointer to child pair node
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cmJsonNode_t* cmJsonInsertOrReplacePairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* newPairLabel, cmJsonNode_t* newPairValNodePtr );
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cmJsRC_t cmJsonInsertOrReplacePairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, int intVal );
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cmJsRC_t cmJsonInsertOrReplacePairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, double realVal );
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cmJsRC_t cmJsonInsertOrReplacePairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* string );
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cmJsRC_t cmJsonInsertOrReplacePairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, bool boolVal );
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cmJsRC_t cmJsonInsertOrReplacePairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask );
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// Same as the above cmJsonInsertOrReplaceXXX() functions except
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// the function fails if a matching pair is not found.
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//
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// Replace a pair with the same name/type and return a pointer to the
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// effected pair. If a pair with the same name and type are not
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// found then no change is made and the function returns NULL.
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// For newTypeId=kObjectTId,kArrayTId,kPairTId the replaced pair node is blank,
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// in other words it will have no child nodes.
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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 );
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// Returns pointer to object node.
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cmJsonNode_t* cmJsonReplacePairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newObjNodePtr );
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// Return pointer to array node.
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cmJsonNode_t* cmJsonReplacePairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newArrayNodePtr );
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// Returns pointer to child pair node.
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cmJsonNode_t* cmJsonReplacePairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* newPairLabel, cmJsonNode_t* newPairValueNodePtr );
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cmJsRC_t cmJsonReplacePairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, int intVal );
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cmJsRC_t cmJsonReplacePairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, double realVal );
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cmJsRC_t cmJsonReplacePairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* string );
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cmJsRC_t cmJsonReplacePairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, bool boolVal );
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cmJsRC_t cmJsonReplacePairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask );
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// Insert multiple pairs in a parent object. Terminate the pair sets with NULL.
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// Note that pair,int,real,bool, and string pairs are specified with 3 args: <label>,<typeId>,<value>
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// all others are specified with 2 args: <label>,<typeId>.
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// The last argument in this function must always be NULL.
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cmJsRC_t cmJsonVInsertPairs( cmJsonH_t h, cmJsonNode_t* objectNodePtr, va_list vl );
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cmJsRC_t cmJsonInsertPairs( cmJsonH_t h, cmJsonNode_t* objectNodePtr, ... );
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// Create an object node, fill it with the specified pairs, and return a pointer to
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// the new object node.
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// This function uses same var args syntax as cmJsonInsertPairs()
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cmJsonNode_t* cmJsonVCreateFilledObject( cmJsonH_t h, cmJsonNode_t* parentPtr, va_list vl );
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cmJsonNode_t* cmJsonCreateFilledObject( cmJsonH_t h, cmJsonNode_t* parentPtr, ... );
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//--------------------------------------------------------------------------------------------------------------
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// Remove a node from the tree by unlinking it from its
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// parent and siblings.
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// Set the freeFl to true if the node memory should also
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// be released.
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//
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// If 'freeFl' is false then np->ownerPtr and
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// np->siblingPtr remain valid when the function returns.
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// Even with the valid pointer however be careful
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// not to use the node in a way that it depends
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// on existing in the tree since the parent and
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// siblings will no longer know about it.
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//
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// If np is the root then the internal tree will be
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// cleared (i.e. cmJsonRoot(h) == NULL).
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//
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// This function will fail if 'np' points to the label value
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|
// of a pair node. Pair labels cannot be removed because this
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// would result in an invalid tree (all pairs must have two
|
|
// child nodes where the first node is a string value). If 'np'
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// points to a pair value node then the value node is replaced
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// with a null node to maintain a valid pair structure.
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cmJsRC_t cmJsonRemoveNode( cmJsonH_t h, cmJsonNode_t* np, bool freeFl );
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//--------------------------------------------------------------------------------------------------------------
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// Duplicate the subtree pointed to by 'np' and attach it as a child
|
|
// of the node pointed to by 'parentPtr'. This function performs a
|
|
// deep copy of the subtree pointed to by np and returns the pointer
|
|
// to the duplicated subtree.
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|
//
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|
// 'parentPtr' must be a legal parent for the sub-tree or NULL to not
|
|
// attach the duplicate tree to any parent.
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|
//
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|
// The returned value is a pointer to the new subtree.
|
|
//
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// If an error occurs the return value is NULL and cmJsonErrorCode()
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|
// can be used to obtain the code associated with the error.
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|
cmJsonNode_t* cmJsonDuplicateNode( cmJsonH_t h, const cmJsonNode_t* np, cmJsonNode_t* parentPtr );
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|
//--------------------------------------------------------------------------------------------------------------
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|
// Copy any pairs not found in the destintaion object from the
|
|
// source object.
|
|
// If an error occurs during merging the destination object is
|
|
// returned unmodified. The most likely cause of an error is a
|
|
// destination pair with the same name but different type
|
|
// than a source pair.
|
|
cmJsRC_t cmJsonMergeObjectNodes( cmJsonH_t h, cmJsonNode_t* destObjNodePtr, const cmJsonNode_t* srcObjNodePtr );
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|
//--------------------------------------------------------------------------------------------------------------
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// Validate the tree.
|
|
cmJsRC_t cmJsonValidateTree( cmJsonH_t h );
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|
|
// Validate the tree beginning with np. Note that this function does
|
|
// not print an error on failure but simply returns kValidateFailJsRC.
|
|
cmJsRC_t cmJsonValidate( const cmJsonNode_t* np );
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|
|
// Get the count of bytes required to serialize the tree rooted at 'np'.
|
|
unsigned cmJsonSerialByteCount( const cmJsonNode_t* np );
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|
|
// Serialize the tree rooted at 'np' into the buffer buf[bufByteCnt].
|
|
cmJsRC_t cmJsonSerialize( const cmJsonNode_t* np, void* buf, unsigned bufByteCnt );
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|
|
// Serialize the subtree indicated by 'np' or the entire tree
|
|
// if 'np' is NULL. The buffer created by this call will exist
|
|
// for the life of 'h' or until the next call to cmJsonSerialize().
|
|
// This function is implemented in terms of cmJsonSerialByteCount()
|
|
// and cmJsonSerializeTree().
|
|
cmJsRC_t cmJsonSerializeTree( cmJsonH_t h, const cmJsonNode_t* np, void** bufPtrPtr, unsigned* bufByteCntPtr);
|
|
|
|
// Recreate the objects previously serialzed via cmJsonSerialize().
|
|
// The tree held in the buffer will be reconstructed as a child of
|
|
// altRootPtr (if it is non-NULL) or the internal root.
|
|
// If altRootPtr is given then it must point to an array
|
|
// or object node.
|
|
cmJsRC_t cmJsonDeserialize( cmJsonH_t h, const void* bufPtr, cmJsonNode_t* altRootPtr );
|
|
|
|
// Return a string/int/real/null/bool node as a string value.
|
|
cmJsRC_t cmJsonLeafToString( const cmJsonNode_t* np, cmChar_t* buf, unsigned bufCharCnt );
|
|
|
|
// Given a CSV file convert it to an array of JSON objects.
|
|
// The first line of the CSV file must contain a comma seperated lists of types.
|
|
// The type labels must be from the set: 'int','real','string','true','false'.
|
|
// Note that either 'true' or 'false' can be use for boolean columns.
|
|
// The seocnd line contains the field names as comma separated quoted strings.
|
|
// For example "column1","column2","column3"
|
|
// The data is presented as comma separated fields.
|
|
// If parentNodePtr is NULL then the array will be created unattached to
|
|
// the tree.
|
|
// if arrayNodePtrPtr is non-NULL then the array node ptr will be returned.
|
|
cmJsRC_t cmJsonFromCSV( cmJsonH_t h, const char* iFn, cmJsonNode_t* parentPtr, cmJsonNode_t** arrayNodePtrPtr );
|
|
|
|
// Write a CSV file from an array of objects.
|
|
// arrayNodePtr must point to an array of objects.
|
|
cmJsRC_t cmJsonToCSV( cmJsonH_t h, const char* oFn, const cmJsonNode_t* arrayNodePtr );
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|
|
|
// Print the subtree using 'np as the root.
|
|
void cmJsonPrintTree( const cmJsonNode_t* np, cmRpt_t* rpt );
|
|
|
|
// Print the subtree using 'np' as the root to a file.
|
|
// 'np' is optional and defaults to cmJsonRoot().
|
|
cmJsRC_t cmJsonWrite( cmJsonH_t h, const cmJsonNode_t* np, const cmChar_t* fn );
|
|
|
|
// Return the code of the last error generated. This is useful for the
|
|
// the cmJsonCreateXXX() functions which do not return error codes but
|
|
// may still fail.
|
|
cmJsRC_t cmJsonErrorCode( cmJsonH_t h );
|
|
void cmJsonClearErrorCode( cmJsonH_t h );
|
|
|
|
// Validate the tree and print all the nodes.
|
|
cmJsRC_t cmJsonReport( cmJsonH_t h );
|
|
|
|
// Testing stub.
|
|
cmJsRC_t cmJsonTest( const char* fn, cmCtx_t* ctx );
|
|
|
|
//)
|
|
//}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|