diff options
| -rw-r--r-- | qjson.c | 178 | ||||
| -rw-r--r-- | qjson.h | 3 |
2 files changed, 181 insertions, 0 deletions
@@ -15,6 +15,11 @@ #include "json-parser.h" #include "json-streamer.h" #include "qjson.h" +#include "qint.h" +#include "qlist.h" +#include "qbool.h" +#include "qfloat.h" +#include "qdict.h" typedef struct JSONParsingState { @@ -58,3 +63,176 @@ QObject *qobject_from_jsonf(const char *string, ...) return state.result; } + +typedef struct ToJsonIterState +{ + int count; + QString *str; +} ToJsonIterState; + +static void to_json(const QObject *obj, QString *str); + +static void to_json_dict_iter(const char *key, QObject *obj, void *opaque) +{ + ToJsonIterState *s = opaque; + QString *qkey; + + if (s->count) { + qstring_append(s->str, ", "); + } + + qkey = qstring_from_str(key); + to_json(QOBJECT(qkey), s->str); + QDECREF(qkey); + + qstring_append(s->str, ": "); + to_json(obj, s->str); + s->count++; +} + +static void to_json_list_iter(QObject *obj, void *opaque) +{ + ToJsonIterState *s = opaque; + + if (s->count) { + qstring_append(s->str, ", "); + } + + to_json(obj, s->str); + s->count++; +} + +static void to_json(const QObject *obj, QString *str) +{ + switch (qobject_type(obj)) { + case QTYPE_QINT: { + QInt *val = qobject_to_qint(obj); + char buffer[1024]; + + snprintf(buffer, sizeof(buffer), "%" PRId64, qint_get_int(val)); + qstring_append(str, buffer); + break; + } + case QTYPE_QSTRING: { + QString *val = qobject_to_qstring(obj); + const char *ptr; + + ptr = qstring_get_str(val); + qstring_append(str, "\""); + while (*ptr) { + if ((ptr[0] & 0xE0) == 0xE0 && + (ptr[1] & 0x80) && (ptr[2] & 0x80)) { + uint16_t wchar; + char escape[7]; + + wchar = (ptr[0] & 0x0F) << 12; + wchar |= (ptr[1] & 0x3F) << 6; + wchar |= (ptr[2] & 0x3F); + ptr += 2; + + snprintf(escape, sizeof(escape), "\\u%04X", wchar); + qstring_append(str, escape); + } else if ((ptr[0] & 0xE0) == 0xC0 && (ptr[1] & 0x80)) { + uint16_t wchar; + char escape[7]; + + wchar = (ptr[0] & 0x1F) << 6; + wchar |= (ptr[1] & 0x3F); + ptr++; + + snprintf(escape, sizeof(escape), "\\u%04X", wchar); + qstring_append(str, escape); + } else switch (ptr[0]) { + case '\"': + qstring_append(str, "\\\""); + break; + case '\\': + qstring_append(str, "\\\\"); + break; + case '\b': + qstring_append(str, "\\b"); + break; + case '\n': + qstring_append(str, "\\n"); + break; + case '\r': + qstring_append(str, "\\r"); + break; + case '\t': + qstring_append(str, "\\t"); + break; + default: { + char buf[2] = { ptr[0], 0 }; + qstring_append(str, buf); + break; + } + } + ptr++; + } + qstring_append(str, "\""); + break; + } + case QTYPE_QDICT: { + ToJsonIterState s; + QDict *val = qobject_to_qdict(obj); + + s.count = 0; + s.str = str; + qstring_append(str, "{"); + qdict_iter(val, to_json_dict_iter, &s); + qstring_append(str, "}"); + break; + } + case QTYPE_QLIST: { + ToJsonIterState s; + QList *val = qobject_to_qlist(obj); + + s.count = 0; + s.str = str; + qstring_append(str, "["); + qlist_iter(val, (void *)to_json_list_iter, &s); + qstring_append(str, "]"); + break; + } + case QTYPE_QFLOAT: { + QFloat *val = qobject_to_qfloat(obj); + char buffer[1024]; + int len; + + len = snprintf(buffer, sizeof(buffer), "%f", qfloat_get_double(val)); + while (len > 0 && buffer[len - 1] == '0') { + len--; + } + + if (len && buffer[len - 1] == '.') { + buffer[len - 1] = 0; + } else { + buffer[len] = 0; + } + + qstring_append(str, buffer); + break; + } + case QTYPE_QBOOL: { + QBool *val = qobject_to_qbool(obj); + + if (qbool_get_int(val)) { + qstring_append(str, "true"); + } else { + qstring_append(str, "false"); + } + break; + } + case QTYPE_NONE: + break; + } +} + +QString *qobject_to_json(const QObject *obj) +{ + QString *str = qstring_new(); + + to_json(obj, str); + + return str; +} @@ -15,9 +15,12 @@ #define QJSON_H #include "qobject.h" +#include "qstring.h" QObject *qobject_from_json(const char *string); QObject *qobject_from_jsonf(const char *string, ...) __attribute__((__format__ (__printf__, 1, 2))); +QString *qobject_to_json(const QObject *obj); + #endif /* QJSON_H */ |