diff options
| -rw-r--r-- | qobject/qdict.c | 60 |
1 files changed, 46 insertions, 14 deletions
diff --git a/qobject/qdict.c b/qobject/qdict.c index a3924f24bd..42ec4c0d2c 100644 --- a/qobject/qdict.c +++ b/qobject/qdict.c @@ -597,18 +597,33 @@ void qdict_extract_subqdict(QDict *src, QDict **dst, const char *start) } } +static bool qdict_has_prefixed_entries(const QDict *src, const char *start) +{ + const QDictEntry *entry; + + for (entry = qdict_first(src); entry; entry = qdict_next(src, entry)) { + if (strstart(entry->key, start, NULL)) { + return true; + } + } + + return false; +} + /** * qdict_array_split(): This function moves array-like elements of a QDict into - * a new QList of QDicts. Every entry in the original QDict with a key prefixed - * "%u.", where %u designates an unsigned integer starting at 0 and + * a new QList. Every entry in the original QDict with a key "%u" or one + * prefixed "%u.", where %u designates an unsigned integer starting at 0 and * incrementally counting up, will be moved to a new QDict at index %u in the - * output QList with the key prefix removed. The function terminates when there - * is no entry in the QDict with a prefix directly (incrementally) following the - * last one. - * Example: {"0.a": 42, "0.b": 23, "1.x": 0, "3.y": 1, "o.o": 7} - * (or {"1.x": 0, "3.y": 1, "0.a": 42, "o.o": 7, "0.b": 23}) - * => [{"a": 42, "b": 23}, {"x": 0}] - * and {"3.y": 1, "o.o": 7} (remainder of the old QDict) + * output QList with the key prefix removed, if that prefix is "%u.". If the + * whole key is just "%u", the whole QObject will be moved unchanged without + * creating a new QDict. The function terminates when there is no entry in the + * QDict with a prefix directly (incrementally) following the last one; it also + * returns if there are both entries with "%u" and "%u." for the same index %u. + * Example: {"0.a": 42, "0.b": 23, "1.x": 0, "4.y": 1, "o.o": 7, "2": 66} + * (or {"1.x": 0, "4.y": 1, "0.a": 42, "o.o": 7, "0.b": 23, "2": 66}) + * => [{"a": 42, "b": 23}, {"x": 0}, 66] + * and {"4.y": 1, "o.o": 7} (remainder of the old QDict) */ void qdict_array_split(QDict *src, QList **dst) { @@ -617,19 +632,36 @@ void qdict_array_split(QDict *src, QList **dst) *dst = qlist_new(); for (i = 0; i < UINT_MAX; i++) { + QObject *subqobj; + bool is_subqdict; QDict *subqdict; - char prefix[32]; + char indexstr[32], prefix[32]; size_t snprintf_ret; + snprintf_ret = snprintf(indexstr, 32, "%u", i); + assert(snprintf_ret < 32); + + subqobj = qdict_get(src, indexstr); + snprintf_ret = snprintf(prefix, 32, "%u.", i); assert(snprintf_ret < 32); - qdict_extract_subqdict(src, &subqdict, prefix); - if (!qdict_size(subqdict)) { - QDECREF(subqdict); + is_subqdict = qdict_has_prefixed_entries(src, prefix); + + // There may be either a single subordinate object (named "%u") or + // multiple objects (each with a key prefixed "%u."), but not both. + if (!subqobj == !is_subqdict) { break; } - qlist_append_obj(*dst, QOBJECT(subqdict)); + if (is_subqdict) { + qdict_extract_subqdict(src, &subqdict, prefix); + assert(qdict_size(subqdict) > 0); + } else { + qobject_incref(subqobj); + qdict_del(src, indexstr); + } + + qlist_append_obj(*dst, subqobj ?: QOBJECT(subqdict)); } } |