alexhudson
263 lines
11 KiB
C
263 lines
11 KiB
C
/****************************************************************************
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* <Novell-copyright>
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* Copyright (c) 2006 Novell, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public License
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, contact Novell, Inc.
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*
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* To contact Novell about this file by physical or electronic mail, you
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* may find current contact information at www.novell.com.
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* </Novell-copyright>
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****************************************************************************/
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#ifndef BONGOJSON_H
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#define BONGOJSON_H
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#include <xpl.h>
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#include <bongoutil.h>
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XPL_BEGIN_C_LINKAGE
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typedef struct _BongoJsonNode BongoJsonNode;
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typedef struct _BongoJsonObject BongoJsonObject;
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typedef struct _BongoJsonObjectIter BongoJsonObjectIter;
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typedef struct _BongoJsonParser BongoJsonParser;
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typedef enum {
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BONGO_JSON_NULL,
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BONGO_JSON_OBJECT,
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BONGO_JSON_ARRAY,
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BONGO_JSON_BOOL,
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BONGO_JSON_DOUBLE,
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BONGO_JSON_INT,
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BONGO_JSON_STRING
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} BongoJsonType;
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typedef enum {
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BONGO_JSON_OK = 0,
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BONGO_JSON_NOT_FOUND = -1,
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BONGO_JSON_BAD_TYPE = -2,
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BONGO_JSON_UNEXPECTED_CHAR = -3,
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BONGO_JSON_BOUNDS_ERROR = -4,
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BONGO_JSON_UNCLOSED_COMMENT = -5,
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BONGO_JSON_UNCLOSED_STRING = -6,
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BONGO_JSON_UNCLOSED_OBJECT = -6,
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BONGO_JSON_UNCLOSED_ARRAY = -7,
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BONGO_JSON_MISSING_VALUE = -8,
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BONGO_JSON_BAD_KEY = -9,
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BONGO_JSON_UNEXPECTED_EOF = -10,
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BONGO_JSON_UNKNOWN_ERROR = -11,
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} BongoJsonResult;
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struct _BongoJsonNode {
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BongoJsonType type;
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union {
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BongoJsonObject *objectVal;
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BongoArray *arrayVal;
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BOOL boolVal;
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double doubleVal;
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int intVal;
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char *stringVal;
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} value;
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};
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typedef int (*BongoJsonParserReadFunc)(void *parserData, char *buffer, int bufLen);
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typedef void (*BongoJsonParserFreeFunc)(void *parserData);
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/*** BongoJsonNode ***/
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BongoJsonNode *BongoJsonNodeNewNull(void);
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BongoJsonNode *BongoJsonNodeNewObject(BongoJsonObject *val);
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BongoJsonNode *BongoJsonNodeNewArray(BongoArray *val);
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BongoJsonNode *BongoJsonNodeNewBool(BOOL val);
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BongoJsonNode *BongoJsonNodeNewDouble(double val);
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BongoJsonNode *BongoJsonNodeNewInt(int val);
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BongoJsonNode *BongoJsonNodeNewString(const char *val);
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BongoJsonNode *BongoJsonNodeNewStringGive(char *val);
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BongoJsonNode *BongoJsonNodeDup(BongoJsonNode *node);
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#define BongoJsonNodeAsObject(n) ((n)->value.objectVal)
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#define BongoJsonNodeAsArray(n) ((n)->value.arrayVal)
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#define BongoJsonNodeAsBool(n) ((n)->value.boolVal)
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#define BongoJsonNodeAsDouble(n) ((n)->value.doubleVal)
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#define BongoJsonNodeAsInt(n) ((n)->value.intVal)
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#define BongoJsonNodeAsString(n) ((n)->value.stringVal)
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char *BongoJsonNodeToString(BongoJsonNode *node);
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void BongoJsonNodeToStringBuilder(BongoJsonNode *node, BongoStringBuilder *sb);
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void BongoJsonNodeFree(BongoJsonNode *node);
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void BongoJsonNodeFreeSteal(BongoJsonNode *node);
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/*** BongoJsonArray **/
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#define BongoJsonArrayNew(count) BongoArrayNew(sizeof(BongoJsonNode*), count);
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void BongoJsonArrayAppend(BongoArray *array, BongoJsonNode *node);
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#define BongoJsonArrayAppendObject(a, v) BongoJsonArrayAppend((a), BongoJsonNodeNewObject(v))
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#define BongoJsonArrayAppendArray(a, v) BongoJsonArrayAppend((a), BongoJsonNodeNewArray(v))
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#define BongoJsonArrayAppendBool(a, v) BongoJsonArrayAppend((a), BongoJsonNodeNewBool(v))
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#define BongoJsonArrayAppendDouble(a, v) BongoJsonArrayAppend((a), BongoJsonNodeNewDouble(v))
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#define BongoJsonArrayAppendInt(a, v) BongoJsonArrayAppend((a), BongoJsonNodeNewInt(v))
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#define BongoJsonArrayAppendString(a, v) BongoJsonArrayAppend((a), BongoJsonNodeNewString(v))
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#define BongoJsonArrayAppendStringGive(a, v) BongoJsonArrayAppend((a), BongoJsonNodeNewStringGive(v))
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void BongoJsonArrayToStringBuilder(BongoArray *array, BongoStringBuilder *sb);
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char *BongoJsonArrayToString(BongoArray *array);
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void BongoJsonArrayRemove(BongoArray *array, int i);
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void BongoJsonArrayRemoveSteal(BongoArray *array, int i);
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#define BongoJsonArrayGet(a, i) BongoArrayIndex((a), BongoJsonNode*, (i))
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#define DEF_ARRAY_GET(ctype, etype, name) \
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static __inline BongoJsonResult BongoJsonArrayGet##name(BongoArray *array, int i, ctype *val) \
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{ \
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BongoJsonNode *node = BongoJsonArrayGet(array, i); \
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if (node->type == etype) { \
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*val = BongoJsonNodeAs##name(node); \
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return BONGO_JSON_OK; \
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} else { \
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return BONGO_JSON_BAD_TYPE; \
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} \
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}
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DEF_ARRAY_GET(BongoJsonObject *, BONGO_JSON_OBJECT, Object);
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DEF_ARRAY_GET(BongoArray *, BONGO_JSON_ARRAY, Array);
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DEF_ARRAY_GET(BOOL, BONGO_JSON_BOOL, Bool);
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DEF_ARRAY_GET(double, BONGO_JSON_DOUBLE, Double);
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DEF_ARRAY_GET(int, BONGO_JSON_INT, Int);
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DEF_ARRAY_GET(const char *, BONGO_JSON_STRING, String);
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#undef DEF_ARRAY_GET
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BongoArray *BongoJsonArrayDup(BongoArray *array);
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void BongoJsonArrayFree(BongoArray *array);
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/*** BongoJsonObject ***/
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struct _BongoJsonObjectIter {
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/* public */
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const char *key;
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BongoJsonNode *value;
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/* private */
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BongoHashtableIter iter;
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};
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BongoJsonObject *BongoJsonObjectNew(void);
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void BongoJsonObjectFree(BongoJsonObject *obj);
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BongoJsonObject *BongoJsonObjectDup(BongoJsonObject *obj);
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void BongoJsonObjectToStringBuilder(BongoJsonObject *obj, BongoStringBuilder *sb);
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char *BongoJsonObjectToString(BongoJsonObject *obj);
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BOOL BongoJsonObjectIterFirst(BongoJsonObject *obj, BongoJsonObjectIter *iter);
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BOOL BongoJsonObjectIterNext(BongoJsonObject *obj, BongoJsonObjectIter *iter);
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BongoJsonResult BongoJsonObjectGet(BongoJsonObject *obj, const char *key, BongoJsonNode **node);
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BongoJsonResult BongoJsonObjectGetObject(BongoJsonObject *obj, const char *key, BongoJsonObject **val);
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BongoJsonResult BongoJsonObjectGetArray(BongoJsonObject *obj, const char *key, BongoArray **val);
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BongoJsonResult BongoJsonObjectGetBool(BongoJsonObject *obj, const char *key, BOOL *val);
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BongoJsonResult BongoJsonObjectGetDouble(BongoJsonObject *obj, const char *key, double *val);
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BongoJsonResult BongoJsonObjectGetInt(BongoJsonObject *obj, const char *key, int *val);
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BongoJsonResult BongoJsonObjectGetString(BongoJsonObject *obj, const char *key, const char **val);
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BongoJsonResult BongoJsonObjectPut(BongoJsonObject *obj, const char *key, BongoJsonNode *node);
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BongoJsonResult BongoJsonObjectPutNull(BongoJsonObject *obj, const char *key);
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BongoJsonResult BongoJsonObjectPutObject(BongoJsonObject *obj, const char *key, BongoJsonObject *val);
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BongoJsonResult BongoJsonObjectPutArray(BongoJsonObject *obj, const char *key, BongoArray *val);
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BongoJsonResult BongoJsonObjectPutBool(BongoJsonObject *obj, const char *key, BOOL val);
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BongoJsonResult BongoJsonObjectPutDouble(BongoJsonObject *obj, const char *key, double val);
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BongoJsonResult BongoJsonObjectPutInt(BongoJsonObject *obj, const char *key, int val);
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BongoJsonResult BongoJsonObjectPutString(BongoJsonObject *obj, const char *key, const char *val);
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BongoJsonResult BongoJsonObjectPutStringGive(BongoJsonObject *obj, const char *key, const char *val);
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BongoJsonResult BongoJsonObjectRemove(BongoJsonObject *obj, const char *key);
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BongoJsonResult BongoJsonObjectRemoveSteal(BongoJsonObject *obj, const char *key);
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/*** Parsing ***/
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char *BongoJsonQuoteString(const char *str);
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void BongoJsonQuoteStringToStringBuilder(const char *str, BongoStringBuilder *sb);
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BongoJsonResult BongoJsonParseString(const char *str, BongoJsonNode **node);
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BongoJsonResult BongoJsonParseFile(FILE *f, int toRead, BongoJsonNode **node);
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BongoJsonResult BongoJsonValidateString(const char *str);
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BongoJsonParser *BongoJsonParserNew(void *userData,
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BongoJsonParserReadFunc read,
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BongoJsonParserFreeFunc freeFunc,
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int toRead);
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BongoJsonParser *BongoJsonParserNewString(const char *str);
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BongoJsonParser *BongoJsonParserNewFile(FILE *f, int toRead);
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void BongoJsonParserFree(BongoJsonParser *parser);
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BongoJsonResult BongoJsonParserReadNode(BongoJsonParser *parser, BongoJsonNode **node);
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/*** JsonJPath : querying a json structure, sort of ***/
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BongoJsonNode *BongoJsonJPath(BongoJsonNode *root, const char *path);
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BongoJsonResult BongoJsonJPathGetObject(BongoJsonNode *n, const char *path, BongoJsonObject **val);
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BongoJsonResult BongoJsonJPathGetArray(BongoJsonNode *n, const char *path, BongoArray **val);
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BongoJsonResult BongoJsonJPathGetBool(BongoJsonNode *n, const char *path, BOOL *val);
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BongoJsonResult BongoJsonJPathGetInt(BongoJsonNode *n, const char *path, int *val);
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BongoJsonResult BongoJsonJPathGetString(BongoJsonNode *n, const char *path, char **val);
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BongoJsonResult BongoJsonJPathGetDouble(BongoJsonNode *n, const char *path, double *val);
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BongoJsonResult BongoJsonJPathGetFloat(BongoJsonNode *n, const char *path, float *val);
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/*** path resolvers ***/
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BongoJsonResult BongoJsonNodeResolve(BongoJsonNode *node, const char *path, BongoJsonNode **out);
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BongoJsonResult BongoJsonObjectResolve(BongoJsonObject *obj, const char *path, BongoJsonNode **out);
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#define DEF_TYPED_RESOLVER(ctype, etype, name) \
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static __inline BongoJsonResult BongoJsonNodeResolve##name(BongoJsonNode *node, const char *path, ctype *out) \
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{ \
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BongoJsonResult res = BongoJsonNodeResolve(node, path, &node); \
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if (res != BONGO_JSON_OK) return res; \
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if (node->type != etype) return BONGO_JSON_BAD_TYPE; \
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*out = BongoJsonNodeAs##name(node); \
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return BONGO_JSON_OK; \
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} \
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static __inline BongoJsonResult BongoJsonObjectResolve##name(BongoJsonObject *obj, const char *path, ctype *out) \
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{ BongoJsonNode *node; \
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BongoJsonResult res = BongoJsonObjectResolve(obj, path, &node); \
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if (res != BONGO_JSON_OK) return res; \
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if (node->type != etype) return BONGO_JSON_BAD_TYPE; \
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*out = BongoJsonNodeAs##name(node); \
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return BONGO_JSON_OK; \
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}
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DEF_TYPED_RESOLVER(BongoJsonObject *, BONGO_JSON_OBJECT, Object);
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DEF_TYPED_RESOLVER(BongoArray *, BONGO_JSON_ARRAY, Array);
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DEF_TYPED_RESOLVER(BOOL, BONGO_JSON_BOOL, Bool);
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DEF_TYPED_RESOLVER(double, BONGO_JSON_DOUBLE, Double);
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DEF_TYPED_RESOLVER(int, BONGO_JSON_INT, Int);
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DEF_TYPED_RESOLVER(const char *, BONGO_JSON_STRING, String);
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#undef DEF_TYPED_RESOLVER
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XPL_END_C_LINKAGE
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#endif
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