Mercurial > hg
annotate mcabber/src/compl.c @ 798:bbaab5692b0e
hgignore: Ignore hgcset.h
author | Mikael Berthe <mikael@lilotux.net> |
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date | Sun, 09 Apr 2006 10:15:44 +0200 |
parents | 89ad7b530b3c |
children | 80bd7f49075f |
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94 | 1 /* |
2 * compl.c -- Completion system | |
393 | 3 * |
699 | 4 * Copyright (C) 2005, 2006 Mikael Berthe <bmikael@lists.lilotux.net> |
94 | 5 * |
6 * This program is free software; you can redistribute it and/or modify | |
7 * it under the terms of the GNU General Public License as published by | |
8 * the Free Software Foundation; either version 2 of the License, or (at | |
9 * your option) any later version. | |
10 * | |
11 * This program is distributed in the hope that it will be useful, but | |
12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 * General Public License for more details. | |
15 * | |
16 * You should have received a copy of the GNU General Public License | |
17 * along with this program; if not, write to the Free Software | |
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
19 * USA | |
20 */ | |
21 | |
22 /* Usage, basically: | |
23 * - new_completion(); // 1. Initialization | |
24 * - complete(); // 2. 1st completion | |
25 * - cancel_completion(); // 3a. 2nd completion / cancel previous | |
26 * - complete(); // 3b. 2nd completion / complete | |
27 * ... | |
28 * - done_completion(); // n. finished -- free allocated areas | |
29 * | |
30 */ | |
31 | |
32 #include <string.h> | |
33 | |
34 #include "compl.h" | |
225 | 35 #include "roster.h" |
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36 #include "events.h" |
94 | 37 |
38 // Completion structure | |
39 typedef struct { | |
40 GSList *list; // list of matches | |
41 guint len_prefix; // length of text already typed by the user | |
42 guint len_compl; // length of the last completion | |
43 GSList *next; // pointer to next completion to try | |
44 } compl; | |
45 | |
46 // Category structure | |
47 typedef struct { | |
48 guint flag; | |
49 GSList *words; | |
50 } category; | |
51 | |
52 static GSList *Categories; | |
53 static compl *InputCompl; | |
54 | |
55 // new_completion(prefix, compl_cat) | |
56 // . prefix = beginning of the word, typed by the user | |
57 // . compl_cat = pointer to a completion category list (list of *char) | |
58 // Returns a pointer to an allocated compl structure. This structure should | |
59 // be freed by the caller when not used anymore. | |
60 void new_completion(char *prefix, GSList *compl_cat) | |
61 { | |
62 compl *c; | |
63 GSList *sl_cat; | |
735 | 64 size_t len = strlen(prefix); |
94 | 65 |
66 if (InputCompl) { // This should not happen, but hey... | |
67 cancel_completion(); | |
68 } | |
69 | |
70 c = g_new0(compl, 1); | |
71 // Build the list of matches | |
72 for (sl_cat=compl_cat; sl_cat; sl_cat = g_slist_next(sl_cat)) { | |
73 char *word = sl_cat->data; | |
104 | 74 if (!strncasecmp(prefix, word, len)) { |
98 | 75 if (strlen(word) != len) |
76 c->list = g_slist_append(c->list, g_strdup(word+len)); // TODO sort | |
94 | 77 } |
78 } | |
79 c->next = c->list; | |
80 InputCompl = c; | |
81 } | |
82 | |
83 // done_completion(); | |
84 void done_completion(void) | |
85 { | |
98 | 86 if (!InputCompl) return; |
87 | |
94 | 88 // TODO free everything |
89 g_slist_free(InputCompl->list); | |
90 g_free(InputCompl); | |
91 InputCompl = NULL; | |
92 } | |
93 | |
94 // cancel_completion() | |
95 // Returns the number of chars to delete to cancel the completion | |
96 //guint cancel_completion(compl *c) | |
97 guint cancel_completion(void) | |
98 { | |
98 | 99 if (!InputCompl) return 0; |
94 | 100 return InputCompl->len_compl; |
101 } | |
102 | |
103 // Returns pointer to text to insert, NULL if no completion. | |
104 const char *complete() | |
105 { | |
106 compl* c = InputCompl; | |
107 char *r; | |
98 | 108 |
109 if (!InputCompl) return NULL; | |
110 | |
94 | 111 if (!c->next) { |
112 c->next = c->list; // back to the beginning | |
113 c->len_compl = 0; | |
114 return NULL; | |
115 } | |
116 r = (char*)c->next->data; | |
117 c->next = g_slist_next(c->next); | |
118 c->len_compl = strlen(r); | |
119 return r; | |
120 } | |
121 | |
122 | |
123 /* Categories functions */ | |
124 | |
95 | 125 // compl_add_category_word(categ, command) |
126 // Adds a keyword as a possible completion in category categ. | |
127 void compl_add_category_word(guint categ, const char *word) | |
94 | 128 { |
129 GSList *sl_cat; | |
130 category *cat; | |
121 | 131 char *nword; |
94 | 132 // Look for category |
133 for (sl_cat=Categories; sl_cat; sl_cat = g_slist_next(sl_cat)) { | |
134 if (categ == ((category*)sl_cat->data)->flag) | |
135 break; | |
136 } | |
137 if (!sl_cat) { // Category not found, let's create it | |
138 cat = g_new0(category, 1); | |
139 cat->flag = categ; | |
140 Categories = g_slist_append(Categories, cat); | |
141 } else | |
142 cat = (category*)sl_cat->data; | |
143 | |
121 | 144 // If word is not space-terminated, we add one trailing space |
145 for (nword = (char*)word; *nword; nword++) | |
146 ; | |
147 if (nword > word) nword--; | |
148 if (*nword != ' ') { // Add a space | |
149 nword = g_new(char, strlen(word)+2); | |
150 strcpy(nword, word); | |
151 strcat(nword, " "); | |
152 } else { // word is fine | |
153 nword = g_strdup(word); | |
154 } | |
155 | |
94 | 156 // TODO Check word does not already exist |
121 | 157 cat->words = g_slist_append(cat->words, nword); // TODO sort |
94 | 158 } |
159 | |
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160 // compl_del_category_word(categ, command) |
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161 // Removes a keyword from category categ in completion list. |
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162 void compl_del_category_word(guint categ, const char *word) |
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163 { |
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164 GSList *sl_cat, *sl_elt; |
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165 category *cat; |
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166 char *nword; |
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167 // Look for category |
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168 for (sl_cat=Categories; sl_cat; sl_cat = g_slist_next(sl_cat)) { |
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169 if (categ == ((category*)sl_cat->data)->flag) |
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170 break; |
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171 } |
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172 if (!sl_cat) return; // Category not found, finished! |
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173 |
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174 cat = (category*)sl_cat->data; |
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175 |
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176 // If word is not space-terminated, we add one trailing space |
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177 for (nword = (char*)word; *nword; nword++) |
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178 ; |
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179 if (nword > word) nword--; |
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180 if (*nword != ' ') { // Add a space |
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181 nword = g_new(char, strlen(word)+2); |
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182 strcpy(nword, word); |
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183 strcat(nword, " "); |
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184 } else { // word is fine |
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185 nword = g_strdup(word); |
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186 } |
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187 |
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188 sl_elt = cat->words; |
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189 while (sl_elt) { |
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190 if (!strcasecmp((char*)sl_elt->data, nword)) { |
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191 g_free(sl_elt->data); |
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192 cat->words = g_slist_delete_link(cat->words, sl_elt); |
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193 break; // Only remove first occurence |
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194 } |
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195 sl_elt = g_slist_next(sl_elt); |
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196 } |
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197 } |
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198 |
95 | 199 // compl_get_category_list() |
200 // Returns a slist of all words in the categories specified by the given flags | |
94 | 201 GSList *compl_get_category_list(guint cat_flags) |
202 { | |
203 GSList *sl_cat; | |
204 // Look for category | |
205 // XXX Actually that's not that simple... cat_flags can be a combination | |
206 // of several flags! | |
207 for (sl_cat=Categories; sl_cat; sl_cat = g_slist_next(sl_cat)) { | |
208 if (cat_flags == ((category*)sl_cat->data)->flag) | |
209 break; | |
210 } | |
211 if (sl_cat) // Category was found, easy... | |
212 return ((category*)sl_cat->data)->words; | |
213 | |
225 | 214 // Handle dynamic SLists |
215 if (cat_flags == COMPL_GROUPNAME) { | |
216 return compl_list(ROSTER_TYPE_GROUP); | |
217 } | |
218 if (cat_flags == COMPL_JID) { | |
219 return compl_list(ROSTER_TYPE_USER); | |
220 } | |
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221 if (cat_flags == COMPL_RESOURCE) { |
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222 return buddy_getresources_locale(NULL); |
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223 } |
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224 if (cat_flags == COMPL_EVENTSID) { |
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225 return evs_geteventscomplist(); |
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226 } |
225 | 227 |
94 | 228 return NULL; |
229 } | |
230 | |
580 | 231 /* vim: set expandtab cindent cinoptions=>2\:2(0: For Vim users... */ |