summaryrefslogtreecommitdiff
path: root/storage/connect/json.h
blob: 375532212c48e30305a107604ac8cb92653244b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
/**************** json H Declares Source Code File (.H) ****************/
/*  Name: json.h   Version 1.2                                         */
/*                                                                     */
/*  (C) Copyright to the author Olivier BERTRAND          2014 - 2017  */
/*                                                                     */
/*  This file contains the JSON classes declares.                      */
/***********************************************************************/
#include "value.h"

#if defined(_DEBUG)
#define X  assert(false);
#else
#define X
#endif

enum JTYP {TYPE_NULL = TYPE_VOID,
					 TYPE_STRG = TYPE_STRING, 
           TYPE_DBL  = TYPE_DOUBLE,
           TYPE_BOOL = TYPE_TINY,
           TYPE_BINT = TYPE_BIGINT,
					 TYPE_DTM  = TYPE_DATE,
					 TYPE_INTG = TYPE_INT,
					 TYPE_JSON = 12,
           TYPE_JAR, 
           TYPE_JOB, 
           TYPE_JVAL};

class JOUT;
class JSON;
class JMAP;
class JVALUE;
class JOBJECT;
class JARRAY;

typedef class JPAIR   *PJPR;
typedef class JSON    *PJSON;
typedef class JVALUE  *PJVAL;
typedef class JOBJECT *PJOB;
typedef class JARRAY  *PJAR;

typedef struct {
  char *str;
  int   len;
  } STRG, *PSG;

PJSON ParseJson(PGLOBAL g, char *s, int n, int *prty = NULL, bool *b = NULL);
PJAR  ParseArray(PGLOBAL g, int& i, STRG& src, bool *pty);
PJOB  ParseObject(PGLOBAL g, int& i, STRG& src, bool *pty);
PJVAL ParseValue(PGLOBAL g, int& i, STRG& src, bool *pty);
char *ParseString(PGLOBAL g, int& i, STRG& src);
PVAL  ParseNumeric(PGLOBAL g, int& i, STRG& src);
PSZ   Serialize(PGLOBAL g, PJSON jsp, char *fn, int pretty);
bool  SerializeArray(JOUT *js, PJAR jarp, bool b);
bool  SerializeObject(JOUT *js, PJOB jobp);
bool  SerializeValue(JOUT *js, PJVAL jvp);
char *NextChr(PSZ s, char sep);
DllExport bool IsNum(PSZ s);

/***********************************************************************/
/* Class JOUT. Used by Serialize.                                      */
/***********************************************************************/
class JOUT : public BLOCK {
 public:
	JOUT(PGLOBAL gp) : BLOCK() {g = gp; Pretty = 3;}

  virtual bool WriteStr(const char *s) = 0;
  virtual bool WriteChr(const char c) = 0;
  virtual bool Escape(const char *s) = 0;
					int  Prty(void) {return Pretty;}

  // Member
  PGLOBAL g;
	int     Pretty;
}; // end of class JOUT

/***********************************************************************/
/* Class JOUTSTR. Used to Serialize to a string.                       */
/***********************************************************************/
class JOUTSTR : public JOUT {
 public:
  JOUTSTR(PGLOBAL g);

  virtual bool WriteStr(const char *s);
  virtual bool WriteChr(const char c);
  virtual bool Escape(const char *s);

  // Member
  char  *Strp;                         // The serialized string
  size_t N;                            // Position of next char
  size_t Max;                          // String max size
}; // end of class JOUTSTR

/***********************************************************************/
/* Class JOUTFILE. Used to Serialize to a file.                        */
/***********************************************************************/
class JOUTFILE : public JOUT {
 public:
	JOUTFILE(PGLOBAL g, FILE *str, int pty) : JOUT(g) {Stream = str; Pretty = pty;}

  virtual bool WriteStr(const char *s);
  virtual bool WriteChr(const char c);
  virtual bool Escape(const char *s);

  // Member
  FILE *Stream;
}; // end of class JOUTFILE

/***********************************************************************/
/* Class JOUTPRT. Used to Serialize to a pretty file.                  */
/***********************************************************************/
class JOUTPRT : public JOUTFILE {
 public:
  JOUTPRT(PGLOBAL g, FILE *str) : JOUTFILE(g, str, 2) {M = 0; B = false;}

  virtual bool WriteStr(const char *s);
  virtual bool WriteChr(const char c);

  // Member
  int  M;
  bool B;
}; // end of class JOUTPRT

/***********************************************************************/
/* Class PAIR. The pairs of a json Object.                             */
/***********************************************************************/
class JPAIR : public BLOCK {
  friend class JOBJECT;
	friend class JSNX;
	friend PJOB ParseObject(PGLOBAL, int&, STRG&, bool*);
  friend bool SerializeObject(JOUT *, PJOB);
 public:
  JPAIR(PCSZ key) : BLOCK() {Key = key; Val = NULL; Next = NULL;}

  inline PCSZ  GetKey(void) {return Key;}
  inline PJVAL GetVal(void) {return Val;}
  inline PJPR  GetNext(void) {return Next;}

 protected:
  PCSZ  Key;      // This pair key name
  PJVAL Val;      // To the value of the pair
  PJPR  Next;     // To the next pair
}; // end of class JPAIR

/***********************************************************************/
/* Class JSON. The base class for all other json classes.              */
/***********************************************************************/
class JSON : public BLOCK {
 public:
  JSON(void) {Size = 0;}

          int    size(void) {return Size;}
	virtual int    GetSize(bool b) {return Size;}
  virtual void   Clear(void) {Size = 0;}
  virtual JTYP   GetType(void) {return TYPE_JSON;}
  virtual JTYP   GetValType(void) {X return TYPE_JSON;}
  virtual void   InitArray(PGLOBAL g) {X}
//virtual PJVAL  AddValue(PGLOBAL g, PJVAL jvp = NULL, int *x = NULL) {X return NULL;}
  virtual PJPR   AddPair(PGLOBAL g, PCSZ key) {X return NULL;}
	virtual PJAR   GetKeyList(PGLOBAL g) {X return NULL;}
	virtual PJVAL  GetValue(const char *key) {X return NULL;}
  virtual PJOB   GetObject(void) {return NULL;}
  virtual PJAR   GetArray(void) {return NULL;}
	virtual PJVAL  GetValue(int i) {X return NULL;}
  virtual PVAL   GetValue(void) {X return NULL;}
	virtual PJSON  GetJsp(void) { X return NULL; }
	virtual PJSON  GetJson(void) { X return NULL; }
  virtual PJPR   GetFirst(void) {X return NULL;}
  virtual int    GetInteger(void) {X return 0;}
  virtual double GetFloat() {X return 0.0;}
  virtual PSZ    GetString(PGLOBAL g) {X return NULL;}
  virtual PSZ    GetText(PGLOBAL g, PSZ text) {X return NULL;}
	virtual bool   Merge(PGLOBAL g, PJSON jsp) { X return true; }
	virtual bool   SetValue(PGLOBAL g, PJVAL jvp, int i) { X return true; }
  virtual void   SetValue(PGLOBAL g, PJVAL jvp, PCSZ key) {X}
  virtual void   SetValue(PVAL valp) {X}
  virtual void   SetValue(PJSON jsp) {X}
  virtual void   SetString(PGLOBAL g, PSZ s, short c) {X}
  virtual void   SetInteger(PGLOBAL g, int n) {X}
  virtual void   SetFloat(PGLOBAL g, double f) {X}
	virtual void   DeleteKey(PCSZ k) {X}
	virtual bool   DeleteValue(int i) {X return true;}
	virtual bool   IsNull(void) {X return true;}

 protected:
  int Size;
}; // end of class JSON

/***********************************************************************/
/* Class JOBJECT: contains a list of value pairs.                      */
/***********************************************************************/
class JOBJECT : public JSON {
  friend PJOB ParseObject(PGLOBAL, int&, STRG&, bool*);
  friend bool SerializeObject(JOUT *, PJOB);
	friend class JSNX;
 public:
  JOBJECT(void) : JSON() {First = Last = NULL;}

  using JSON::GetValue;
  using JSON::SetValue;
	virtual void  Clear(void) {First = Last = NULL; Size = 0;}
  virtual JTYP  GetType(void) {return TYPE_JOB;}
  virtual PJPR  GetFirst(void) {return First;}
	virtual int   GetSize(bool b);
	virtual PJPR  AddPair(PGLOBAL g, PCSZ key);
  virtual PJOB  GetObject(void) {return this;}
  virtual PJVAL GetValue(const char* key);
	virtual PJAR  GetKeyList(PGLOBAL g);
	virtual PSZ   GetText(PGLOBAL g, PSZ text);
	virtual bool  Merge(PGLOBAL g, PJSON jsp);
	virtual void  SetValue(PGLOBAL g, PJVAL jvp, PCSZ key);
	virtual void  DeleteKey(PCSZ k);
	virtual bool  IsNull(void);

 protected:
  PJPR First;
  PJPR Last;
}; // end of class JOBJECT

/***********************************************************************/
/* Class JARRAY.                                                       */
/***********************************************************************/
class JARRAY : public JSON {
  friend PJAR ParseArray(PGLOBAL, int&, STRG&, bool*);
 public:
  JARRAY(void) : JSON() {Alloc = 0; First = Last = NULL; Mvals = NULL;}

  using JSON::GetValue;
  using JSON::SetValue;
  virtual void  Clear(void) {First = Last = NULL; Size = 0;}
	virtual JTYP  GetType(void) {return TYPE_JAR;}
  virtual PJAR  GetArray(void) {return this;}
	virtual int   GetSize(bool b);
					PJVAL AddValue(PGLOBAL g, PJVAL jvp = NULL, int *x = NULL);
  virtual void  InitArray(PGLOBAL g);
  virtual PJVAL GetValue(int i);
	virtual PSZ   GetText(PGLOBAL g, PSZ text);
	virtual bool  Merge(PGLOBAL g, PJSON jsp);
	virtual bool  SetValue(PGLOBAL g, PJVAL jvp, int i);
  virtual bool  DeleteValue(int n);
  virtual bool  IsNull(void);

 protected:
  // Members
  int    Alloc;    // The Mvals allocated size
  PJVAL  First;    // Used when constructing
  PJVAL  Last;     // Last constructed value
  PJVAL *Mvals;    // Allocated when finished
}; // end of class JARRAY

/***********************************************************************/
/* Class JVALUE.                                                       */
/***********************************************************************/
class JVALUE : public JSON {
  friend class JARRAY;
	friend class JSNX;
	friend class JSONCOL;
	friend PJVAL ParseValue(PGLOBAL, int&, STRG&, bool*);
  friend bool  SerializeValue(JOUT *, PJVAL);
 public:
  JVALUE(void) : JSON() {Clear();}
  JVALUE(PJSON jsp) : JSON()
		{Jsp = jsp; Value = NULL; Next = NULL; Del = false; Size = 1;}
	JVALUE(PGLOBAL g, PVAL valp);
	JVALUE(PGLOBAL g, PCSZ strp);

  using JSON::GetValue;
  using JSON::SetValue;
  virtual void   Clear(void)
          {Jsp = NULL; Value = NULL; Next = NULL; Del = false; Size = 1;}
  virtual JTYP   GetType(void) {return TYPE_JVAL;}
  virtual JTYP   GetValType(void);
  virtual PJOB   GetObject(void);
  virtual PJAR   GetArray(void);
  virtual PVAL   GetValue(void) {return Value;}
  virtual PJSON  GetJsp(void) {return Jsp;}
	virtual PJSON  GetJson(void) { return (Jsp ? Jsp : this); }
	virtual int    GetInteger(void);
	virtual long long GetBigint(void);
	virtual double GetFloat(void);
  virtual PSZ    GetString(PGLOBAL g);
  virtual PSZ    GetText(PGLOBAL g, PSZ text);
	virtual void   SetValue(PJSON jsp);
	virtual void   SetValue(PVAL valp) { Value = valp; Jsp = NULL; }
	virtual void   SetString(PGLOBAL g, PSZ s, short c = 0);
  virtual void   SetInteger(PGLOBAL g, int n);
	virtual void   SetBigint(PGLOBAL g, longlong ll);
	virtual void   SetFloat(PGLOBAL g, double f);
	virtual void   SetTiny(PGLOBAL g, char f);
	virtual bool   IsNull(void);

 protected:
  PJSON Jsp;      // To the json value
  PVAL  Value;    // The numeric value
  PJVAL Next;     // Next value in array
  bool  Del;      // True when deleted
}; // end of class JVALUE