author | Mikael Berthe <mikael@lilotux.net> |
Sat, 27 Mar 2010 11:56:49 +0100 | |
changeset 1828 | 8f7d7c05f275 |
parent 1811 | e6d355e50d7a |
child 1850 | 8d7810f529db |
permissions | -rw-r--r-- |
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/* |
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* compl.c -- Completion system |
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* |
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* Copyright (C) 2005-2010 Mikael Berthe <mikael@lilotux.net> |
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* Copyright (C) 2009,2010 Myhailo Danylenko <isbear@ukrpost.net> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or (at |
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* your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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*/ |
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/* Usage, basically: |
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* - new_completion(); // 1. Initialization |
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* - complete(); // 2. 1st completion |
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* - cancel_completion(); // 3a. 2nd completion / cancel previous |
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* - complete(); // 3b. 2nd completion / complete |
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* ... |
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* - done_completion(); // n. finished -- free allocated areas |
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* |
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*/ |
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#include <string.h> |
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#include "compl.h" |
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#include "utf8.h" |
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#include "roster.h" |
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#include "events.h" |
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// Completion structure |
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typedef struct { |
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GSList *list; // list of matches |
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guint len_prefix; // length of text already typed by the user |
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guint len_compl; // length of the last completion |
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GSList *next; // pointer to next completion to try |
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} compl; |
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// Category structure |
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typedef struct { |
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guint flag; |
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GSList *words; |
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} category; |
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static GSList *Categories; |
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static compl *InputCompl; |
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#ifdef MODULES_ENABLE |
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guint registered_cats = COMPL_CMD|COMPL_JID|COMPL_URLJID|COMPL_NAME| \ |
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COMPL_STATUS|COMPL_FILENAME|COMPL_ROSTER|COMPL_BUFFER| \ |
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COMPL_GROUP|COMPL_GROUPNAME|COMPL_MULTILINE|COMPL_ROOM| \ |
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COMPL_RESOURCE|COMPL_AUTH|COMPL_REQUEST|COMPL_EVENTS| \ |
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COMPL_EVENTSID|COMPL_PGP|COMPL_COLOR| \ |
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COMPL_OTR|COMPL_OTRPOLICY| \ |
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0; |
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// compl_new_category() |
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// Reserves id for new completion category. |
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// Returns 0, if no more categories can be allocated. |
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// Note, that user should not make any assumptions about id nature, |
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// as it is likely to change in future. |
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guint compl_new_category(void) |
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{ |
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guint i = 0; |
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while ((registered_cats >> i) & 1) |
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i++; |
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if (i >= 8 * sizeof (guint)) |
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return 0; |
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else { |
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guint id = 1 << i; |
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registered_cats |= id; |
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return id; |
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} |
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} |
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// compl_del_category(id) |
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// Frees reserved id for category. |
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// Note, that for now it not validates its input, so, be careful |
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// and specify exactly what you get from compl_new_category. |
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void compl_del_category(guint id) |
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{ |
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registered_cats &= ~id; |
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} |
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#endif |
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// new_completion(prefix, compl_cat, suffix) |
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// . prefix = beginning of the word, typed by the user |
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// . compl_cat = pointer to a completion category list (list of *char) |
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// . suffix = string to append to all completion possibilities (i.e. ":") |
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// Set the InputCompl pointer to an allocated compl structure. |
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// done_completion() must be called when finished. |
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// Returns the number of possible completions. |
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guint new_completion(const char *prefix, GSList *compl_cat, const gchar *suffix) |
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{ |
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compl *c; |
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GSList *sl_cat; |
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size_t len = strlen(prefix); |
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if (InputCompl) { // This should not happen, but hey... |
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cancel_completion(); |
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} |
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c = g_new0(compl, 1); |
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// Build the list of matches |
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for (sl_cat = compl_cat; sl_cat; sl_cat = g_slist_next(sl_cat)) { |
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char *word = sl_cat->data; |
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if (!strncasecmp(prefix, word, len)) { |
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if (strlen(word) != len) { |
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gchar *compval; |
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if (suffix) |
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compval = g_strdup_printf("%s%s", word+len, suffix); |
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else |
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compval = g_strdup(word+len); |
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c->list = g_slist_append(c->list, compval); // TODO sort |
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} |
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} |
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} |
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c->next = c->list; |
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InputCompl = c; |
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return g_slist_length(c->list); |
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} |
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// done_completion(); |
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void done_completion(void) |
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{ |
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GSList *clp; |
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if (!InputCompl) return; |
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// Free the current completion list |
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for (clp = InputCompl->list; clp; clp = g_slist_next(clp)) |
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g_free(clp->data); |
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g_slist_free(InputCompl->list); |
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g_free(InputCompl); |
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InputCompl = NULL; |
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} |
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// cancel_completion() |
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// Returns the number of chars to delete to cancel the completion |
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guint cancel_completion(void) |
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{ |
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if (!InputCompl) return 0; |
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return InputCompl->len_compl; |
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} |
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// Returns pointer to text to insert, NULL if no completion. |
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const char *complete() |
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{ |
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compl* c = InputCompl; |
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char *r; |
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if (!InputCompl) return NULL; |
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if (!c->next) { |
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c->next = c->list; // back to the beginning |
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c->len_compl = 0; |
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return NULL; |
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} |
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r = (char*)c->next->data; |
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c->next = g_slist_next(c->next); |
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if (!utf8_mode) { |
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c->len_compl = strlen(r); |
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} else { |
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char *wc; |
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c->len_compl = 0; |
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for (wc = r; *wc; wc = next_char(wc)) |
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c->len_compl++; |
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} |
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return r; |
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} |
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/* Categories functions */ |
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// compl_add_category_word(categ, command) |
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// Adds a keyword as a possible completion in category categ. |
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void compl_add_category_word(guint categ, const gchar *word) |
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{ |
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GSList *sl_cat; |
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category *cat; |
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char *nword; |
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// Look for category |
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for (sl_cat=Categories; sl_cat; sl_cat = g_slist_next(sl_cat)) { |
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if (categ == ((category*)sl_cat->data)->flag) |
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break; |
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} |
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if (!sl_cat) { // Category not found, let's create it |
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cat = g_new0(category, 1); |
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cat->flag = categ; |
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Categories = g_slist_append(Categories, cat); |
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} else |
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cat = (category*)sl_cat->data; |
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// If word is not space-terminated, we add one trailing space |
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for (nword = (char*)word; *nword; nword++) |
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; |
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if (nword > word) nword--; |
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if (*nword != ' ') { // Add a space |
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nword = g_strdup_printf("%s ", word); |
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} else { // word is fine |
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nword = g_strdup(word); |
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} |
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// TODO Check word does not already exist |
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cat->words = g_slist_append(cat->words, nword); // TODO sort |
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} |
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// compl_del_category_word(categ, command) |
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// Removes a keyword from category categ in completion list. |
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void compl_del_category_word(guint categ, const gchar *word) |
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{ |
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GSList *sl_cat, *sl_elt; |
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category *cat; |
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char *nword; |
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// Look for category |
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for (sl_cat=Categories; sl_cat; sl_cat = g_slist_next(sl_cat)) { |
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if (categ == ((category*)sl_cat->data)->flag) |
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break; |
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} |
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if (!sl_cat) return; // Category not found, finished! |
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cat = (category*)sl_cat->data; |
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// If word is not space-terminated, we add one trailing space |
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for (nword = (char*)word; *nword; nword++) |
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; |
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if (nword > word) nword--; |
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if (*nword != ' ') { // Add a space |
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nword = g_strdup_printf("%s ", word); |
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} else { // word is fine |
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nword = g_strdup(word); |
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} |
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sl_elt = cat->words; |
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while (sl_elt) { |
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if (!strcasecmp((char*)sl_elt->data, nword)) { |
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g_free(sl_elt->data); |
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Add compl_del_category_word()
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parents:
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247 |
cat->words = g_slist_delete_link(cat->words, sl_elt); |
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248 |
break; // Only remove first occurence |
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Add compl_del_category_word()
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|
249 |
} |
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Add compl_del_category_word()
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250 |
sl_elt = g_slist_next(sl_elt); |
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Add compl_del_category_word()
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251 |
} |
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252 |
} |
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Add compl_del_category_word()
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253 |
|
95 | 254 |
// compl_get_category_list() |
255 |
// Returns a slist of all words in the categories specified by the given flags |
|
1076
b9698c89f46d
Fix memory leak in scr_handle_tab()
Mikael Berthe <mikael@lilotux.net>
parents:
894
diff
changeset
|
256 |
// Iff this function sets *dynlist to TRUE, then the caller must free the |
b9698c89f46d
Fix memory leak in scr_handle_tab()
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parents:
894
diff
changeset
|
257 |
// whole list after use. |
b9698c89f46d
Fix memory leak in scr_handle_tab()
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parents:
894
diff
changeset
|
258 |
GSList *compl_get_category_list(guint cat_flags, guint *dynlist) |
94 | 259 |
{ |
260 |
GSList *sl_cat; |
|
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Fix memory leak in scr_handle_tab()
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parents:
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diff
changeset
|
261 |
|
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Fix memory leak in scr_handle_tab()
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parents:
894
diff
changeset
|
262 |
*dynlist = FALSE; |
b9698c89f46d
Fix memory leak in scr_handle_tab()
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parents:
894
diff
changeset
|
263 |
|
94 | 264 |
// Look for category |
265 |
// XXX Actually that's not that simple... cat_flags can be a combination |
|
266 |
// of several flags! |
|
267 |
for (sl_cat=Categories; sl_cat; sl_cat = g_slist_next(sl_cat)) { |
|
268 |
if (cat_flags == ((category*)sl_cat->data)->flag) |
|
269 |
break; |
|
270 |
} |
|
271 |
if (sl_cat) // Category was found, easy... |
|
272 |
return ((category*)sl_cat->data)->words; |
|
273 |
||
225 | 274 |
// Handle dynamic SLists |
1076
b9698c89f46d
Fix memory leak in scr_handle_tab()
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parents:
894
diff
changeset
|
275 |
*dynlist = TRUE; |
225 | 276 |
if (cat_flags == COMPL_GROUPNAME) { |
277 |
return compl_list(ROSTER_TYPE_GROUP); |
|
278 |
} |
|
279 |
if (cat_flags == COMPL_JID) { |
|
280 |
return compl_list(ROSTER_TYPE_USER); |
|
281 |
} |
|
501
7c1ca00070e8
Add COMPL_RESOURCE (resource completion category)
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parents:
393
diff
changeset
|
282 |
if (cat_flags == COMPL_RESOURCE) { |
792
89ad7b530b3c
MUC: Fix completion for UTF-8 nicknames
Mikael Berthe <mikael@lilotux.net>
parents:
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diff
changeset
|
283 |
return buddy_getresources_locale(NULL); |
501
7c1ca00070e8
Add COMPL_RESOURCE (resource completion category)
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parents:
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diff
changeset
|
284 |
} |
757
ae23c8826efb
Improve completion for the "/event" command
Mikael Berthe <mikael@lilotux.net>
parents:
735
diff
changeset
|
285 |
if (cat_flags == COMPL_EVENTSID) { |
1685
1342df44c814
Improved events interface
Myhailo Danylenko <isbear@ukrpost.net>
parents:
1668
diff
changeset
|
286 |
GSList *compl = evs_geteventslist(); |
1342df44c814
Improved events interface
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parents:
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diff
changeset
|
287 |
GSList *cel; |
1342df44c814
Improved events interface
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parents:
1668
diff
changeset
|
288 |
for (cel = compl; cel; cel = cel->next) |
1342df44c814
Improved events interface
Myhailo Danylenko <isbear@ukrpost.net>
parents:
1668
diff
changeset
|
289 |
cel->data = g_strdup(cel->data); |
1342df44c814
Improved events interface
Myhailo Danylenko <isbear@ukrpost.net>
parents:
1668
diff
changeset
|
290 |
compl = g_slist_append(compl, g_strdup("list")); |
1342df44c814
Improved events interface
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parents:
1668
diff
changeset
|
291 |
return compl; |
757
ae23c8826efb
Improve completion for the "/event" command
Mikael Berthe <mikael@lilotux.net>
parents:
735
diff
changeset
|
292 |
} |
225 | 293 |
|
1076
b9698c89f46d
Fix memory leak in scr_handle_tab()
Mikael Berthe <mikael@lilotux.net>
parents:
894
diff
changeset
|
294 |
*dynlist = FALSE; |
94 | 295 |
return NULL; |
296 |
} |
|
297 |
||
1811 | 298 |
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