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Code

Simplified autocompleter

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This commit is contained in:
James Booth 2012-10-28 23:38:10 +00:00
parent 34238ad6a4
commit a85ba5e2cb
1 changed files with 12 additions and 64 deletions
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76
src/prof_autocomplete.c
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@ -29,59 +29,25 @@ struct p_autocomplete_t {
GSList *items; GSList *items;
GSList *last_found; GSList *last_found;
gchar *search_str; gchar *search_str;
PStrFunc str_func;
PCopyFunc copy_func;
PEqualDeepFunc equal_deep_func;
GDestroyNotify free_func;
}; };
static gchar * _search_from(PAutocomplete ac, GSList *curr); static gchar * _search_from(PAutocomplete ac, GSList *curr);
static const char *_str_func_default(const char *orig);
static const char *_copy_func_default(const char *orig);
static int _deep_equals_func_default(const char *o1, const char *o2);
PAutocomplete PAutocomplete
p_autocomplete_new(void) p_autocomplete_new(void)
{
return p_obj_autocomplete_new(NULL, NULL, NULL, NULL);
}
PAutocomplete
p_obj_autocomplete_new(PStrFunc str_func, PCopyFunc copy_func,
PEqualDeepFunc equal_deep_func, GDestroyNotify free_func)
{ {
PAutocomplete new = malloc(sizeof(struct p_autocomplete_t)); PAutocomplete new = malloc(sizeof(struct p_autocomplete_t));
new->items = NULL; new->items = NULL;
new->last_found = NULL; new->last_found = NULL;
new->search_str = NULL; new->search_str = NULL;
if (str_func)
new->str_func = str_func;
else
new->str_func = (PStrFunc)_str_func_default;
if (copy_func)
new->copy_func = copy_func;
else
new->copy_func = (PCopyFunc)_copy_func_default;
if (free_func)
new->free_func = free_func;
else
new->free_func = (GDestroyNotify)free;
if (equal_deep_func)
new->equal_deep_func = equal_deep_func;
else
new->equal_deep_func = (PEqualDeepFunc)_deep_equals_func_default;
return new; return new;
} }
void void
p_autocomplete_clear(PAutocomplete ac) p_autocomplete_clear(PAutocomplete ac)
{ {
g_slist_free_full(ac->items, ac->free_func); g_slist_free_full(ac->items, free);
ac->items = NULL; ac->items = NULL;
p_autocomplete_reset(ac); p_autocomplete_reset(ac);
@ -109,16 +75,16 @@ p_autocomplete_add(PAutocomplete ac, void *item)
while(curr) { while(curr) {
// insert // insert
if (g_strcmp0(ac->str_func(curr->data), ac->str_func(item)) > 0) { if (g_strcmp0(curr->data, item) > 0) {
ac->items = g_slist_insert_before(ac->items, ac->items = g_slist_insert_before(ac->items,
curr, item); curr, item);
return TRUE; return TRUE;
// update // update
} else if (g_strcmp0(ac->str_func(curr->data), ac->str_func(item)) == 0) { } else if (g_strcmp0(curr->data, item) == 0) {
// only update if data different // only update if data different
if (!ac->equal_deep_func(curr->data, item)) { if (strcmp(curr->data, item) != 0) {
ac->free_func(curr->data); free(curr->data);
curr->data = item; curr->data = item;
return TRUE; return TRUE;
} else { } else {
@ -141,7 +107,7 @@ p_autocomplete_remove(PAutocomplete ac, const char * const item)
{ {
// reset last found if it points to the item to be removed // reset last found if it points to the item to be removed
if (ac->last_found != NULL) if (ac->last_found != NULL)
if (g_strcmp0(ac->str_func(ac->last_found->data), item) == 0) if (g_strcmp0(ac->last_found->data, item) == 0)
ac->last_found = NULL; ac->last_found = NULL;
if (!ac->items) { if (!ac->items) {
@ -150,10 +116,10 @@ p_autocomplete_remove(PAutocomplete ac, const char * const item)
GSList *curr = ac->items; GSList *curr = ac->items;
while(curr) { while(curr) {
if (g_strcmp0(ac->str_func(curr->data), item) == 0) { if (g_strcmp0(curr->data, item) == 0) {
void *current_item = curr->data; void *current_item = curr->data;
ac->items = g_slist_remove(ac->items, curr->data); ac->items = g_slist_remove(ac->items, curr->data);
ac->free_func(current_item); free(current_item);
return TRUE; return TRUE;
} }
@ -172,7 +138,7 @@ p_autocomplete_get_list(PAutocomplete ac)
GSList *curr = ac->items; GSList *curr = ac->items;
while(curr) { while(curr) {
copy = g_slist_append(copy, ac->copy_func(curr->data)); copy = g_slist_append(copy, strdup(curr->data));
curr = g_slist_next(curr); curr = g_slist_next(curr);
} }
@ -221,17 +187,17 @@ _search_from(PAutocomplete ac, GSList *curr)
while(curr) { while(curr) {
// match found // match found
if (strncmp(ac->str_func(curr->data), if (strncmp(curr->data,
ac->search_str, ac->search_str,
strlen(ac->search_str)) == 0) { strlen(ac->search_str)) == 0) {
gchar *result = gchar *result =
(gchar *) malloc((strlen(ac->str_func(curr->data)) + 1) * sizeof(gchar)); (gchar *) malloc((strlen(curr->data) + 1) * sizeof(gchar));
// set pointer to last found // set pointer to last found
ac->last_found = curr; ac->last_found = curr;
// return the string, must be free'd by caller // return the string, must be free'd by caller
strcpy(result, ac->str_func(curr->data)); strcpy(result, curr->data);
return result; return result;
} }
@ -240,21 +206,3 @@ _search_from(PAutocomplete ac, GSList *curr)
return NULL; return NULL;
} }
static const char *
_str_func_default(const char *orig)
{
return orig;
}
static const char *
_copy_func_default(const char *orig)
{
return strdup(orig);
}
static int
_deep_equals_func_default(const char *o1, const char *o2)
{
return (strcmp(o1, o2) == 0);
}