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39
40#ifndef QJSONPARSER_P_H
41#define QJSONPARSER_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtCore/private/qglobal_p.h>
55#include <qjsondocument.h>
56#include <qvarlengtharray.h>
57
58QT_BEGIN_NAMESPACE
59
60namespace QJsonPrivate {
61
62class Parser
63{
64public:
65 Parser(const char *json, int length);
66
67 QJsonDocument parse(QJsonParseError *error);
68
69 class ParsedObject
70 {
71 public:
72 ParsedObject(Parser *p, int pos) : parser(p), objectPosition(pos) {
73 offsets.reserve(64);
74 }
75 void insert(uint offset);
76
77 Parser *parser;
78 int objectPosition;
79 QVector<uint> offsets;
80
81 inline QJsonPrivate::Entry *entryAt(int i) const {
82 return reinterpret_cast<QJsonPrivate::Entry *>(parser->data + objectPosition + offsets[i]);
83 }
84 };
85
86
87private:
88 inline void eatBOM();
89 inline bool eatSpace();
90 inline char nextToken();
91
92 bool parseObject();
93 bool parseArray();
94 bool parseMember(int baseOffset);
95 bool parseString(bool *latin1);
96 bool parseValue(QJsonPrivate::Value *val, int baseOffset);
97 bool parseNumber(QJsonPrivate::Value *val, int baseOffset);
98 const char *head;
99 const char *json;
100 const char *end;
101
102 char *data;
103 int dataLength;
104 int current;
105 int nestingLevel;
106 QJsonParseError::ParseError lastError;
107
108 inline int reserveSpace(int space) {
109 if (current + space >= dataLength) {
110 dataLength = 2*dataLength + space;
111 char *newData = (char *)realloc(data, dataLength);
112 if (!newData) {
113 lastError = QJsonParseError::DocumentTooLarge;
114 return -1;
115 }
116 data = newData;
117 }
118 int pos = current;
119 current += space;
120 return pos;
121 }
122};
123
124}
125
126QT_END_NAMESPACE
127
128#endif
129