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Add ks_json_replace_item method #182

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Add ks_json_replace_item method #182

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ae304c3
Add ks_json_replace_item and replace_value_string
DonLoquacious Dec 11, 2023
97e77c6
Small shortcut for when item already equals replacement
DonLoquacious Dec 11, 2023
1c1d25a
Coding guidelines.
andywolk Dec 14, 2023
2a0ed41
Use kJSON_free in case special hook used for deallocate- re-use item …
DonLoquacious Dec 15, 2023
224dd88
Merge branch 'master' into replace-item
DonLoquacious Jan 17, 2024
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5 changes: 5 additions & 0 deletions src/include/libks/ks_json.h
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,11 @@ KS_DECLARE(ks_bool_t) ks_json_type_is_bool(ks_json_t *item);
KS_DECLARE(ks_json_t *) ks_json_enum_child(ks_json_t *item);
KS_DECLARE(ks_json_t *) ks_json_enum_next(ks_json_t *item);

KS_DECLARE(ks_bool_t) ks_json_replace_item(ks_json_t *parent, ks_json_t **item, ks_json_t *replacement);
KS_DECLARE(ks_bool_t) ks_json_replace_value_string(ks_json_t *string_item, char *value_string);

#define HAVE_KS_JSON_REPLACE_ITEM

#define KS_JSON_ARRAY_FOREACH(element, array) for(element = ks_json_enum_child((array)) \
; element != NULL; element = ks_json_enum_next(element))

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59 changes: 59 additions & 0 deletions src/ks_json.c
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Expand Up @@ -451,6 +451,65 @@ KS_DECLARE(ks_json_t *) ks_json_enum_next(ks_json_t *item)
return item->next;
}

KS_DECLARE(ks_bool_t) ks_json_replace_item(ks_json_t *parent, ks_json_t **item, ks_json_t *replacement)
{
if ((parent == NULL) || (replacement == NULL) || (item == NULL) || (*item == NULL)) {
return KS_FALSE;
}

if (replacement == *item) {
*item = NULL;

return KS_TRUE;
}

replacement->next = (*item)->next;
replacement->prev = (*item)->prev;

if ((*item)->string) {
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if (replacement->string) {
kJSON_free(replacement->string);
}

replacement->string = (*item)->string;
(*item)->string = NULL;
}

if (replacement->next != NULL) {
replacement->next->prev = replacement;
}

if (replacement->prev != NULL) {
replacement->prev->next = replacement;
}

if (parent->child == *item) {
parent->child = replacement;
}

(*item)->next = NULL;
(*item)->prev = NULL;

ks_json_delete(item);

return KS_TRUE;
}

KS_DECLARE(ks_bool_t) ks_json_replace_value_string(ks_json_t *string_item, char *value_string)
{
if (string_item == NULL || !ks_json_type_is_string(string_item)) {
return KS_FALSE;
}

if (string_item->valuestring != NULL) {
kJSON_free(string_item->valuestring);
}

string_item->valuestring = value_string;

return KS_TRUE;
}

/* For Emacs:
* Local Variables:
* mode:c
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