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Comparing rxvt-unicode/src/keyboard.C (file contents):
Revision 1.38 by sf-exg, Wed Jan 5 17:00:17 2011 UTC vs.
Revision 1.49 by sf-exg, Sun Nov 27 12:12:49 2011 UTC

… …
2 * File: keyboard.C 2 * File: keyboard.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2005 WU Fengguang 6 * Copyright (c) 2005 WU Fengguang
7 * Copyright (c) 2005-2006 Marc Lehmann <pcg@goof.com> 7 * Copyright (c) 2005-2006 Marc Lehmann <schmorp@schmorp.de>
8 * 8 *
9 * This program is free software; you can redistribute it and/or modify 9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by 10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or 11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version. 12 * (at your option) any later version.
… …
63 * n(the number of groups) = the number of non-zero member of hash_bucket_size[]; 63 * n(the number of groups) = the number of non-zero member of hash_bucket_size[];
64 * Ni(the size of group i) = hash_bucket_size[Ii]. 64 * Ni(the size of group i) = hash_bucket_size[Ii].
65 */ 65 */
66 66
67static void 67static void
68output_string (rxvt_term *rt, const char *str) 68output_string (rxvt_term *term, const char *str)
69{ 69{
70 if (strncmp (str, "command:", 8) == 0) 70 if (strncmp (str, "command:", 8) == 0)
71 rt->cmd_write (str + 8, strlen (str) - 8); 71 term->cmdbuf_append (str + 8, strlen (str) - 8);
72 else if (strncmp (str, "perl:", 5) == 0) 72 else if (strncmp (str, "perl:", 5) == 0)
73 HOOK_INVOKE((rt, HOOK_USER_COMMAND, DT_STR, str + 5, DT_END)); 73 HOOK_INVOKE((term, HOOK_USER_COMMAND, DT_STR, str + 5, DT_END));
74 else 74 else
75 rt->tt_write (str, strlen (str)); 75 term->tt_write (str, strlen (str));
76} 76}
77 77
78// return: priority_of_a - priority_of_b 78// return: priority_of_a - priority_of_b
79static int 79static int
80compare_priority (keysym_t *a, keysym_t *b) 80compare_priority (keysym_t *a, keysym_t *b)
81{ 81{
82 // (the more '1's in state; the less range): the greater priority 82 // (the more '1's in state; the less range): the greater priority
83 int ca = rxvt_popcount (a->state /* & OtherModMask */); 83 int ca = ecb_popcount32 (a->state /* & OtherModMask */);
84 int cb = rxvt_popcount (b->state /* & OtherModMask */); 84 int cb = ecb_popcount32 (b->state /* & OtherModMask */);
85 85
86 if (ca != cb) 86 if (ca != cb)
87 return ca - cb; 87 return ca - cb;
88//else if (a->state != b->state) // this behavior is to be discussed 88//else if (a->state != b->state) // this behavior is to be discussed
89// return b->state - a->state; 89// return b->state - a->state;
90 else 90 else
91 return b->range - a->range; 91 return 0;
92} 92}
93 93
94//////////////////////////////////////////////////////////////////////////////// 94////////////////////////////////////////////////////////////////////////////////
95keyboard_manager::keyboard_manager () 95keyboard_manager::keyboard_manager ()
96{ 96{
… …
98 hash [0] = 1; // hash[0] != 0 indicates uninitialized data 98 hash [0] = 1; // hash[0] != 0 indicates uninitialized data
99} 99}
100 100
101keyboard_manager::~keyboard_manager () 101keyboard_manager::~keyboard_manager ()
102{ 102{
103 clear ();
104}
105
106void
107keyboard_manager::clear ()
108{
109 hash [0] = 2; 103 hash [0] = 2;
110 104
111 for (unsigned int i = 0; i < keymap.size (); ++i) 105 for (unsigned int i = 0; i < keymap.size (); ++i)
112 { 106 {
113 free ((void *)keymap [i]->str); 107 free (keymap [i]->str);
114 delete keymap [i]; 108 delete keymap [i];
115 keymap [i] = 0; 109 keymap [i] = 0;
116 } 110 }
117 111
118 keymap.clear (); 112 keymap.clear ();
119} 113}
120 114
121// a wrapper for register_keymap, 115// a wrapper for register_translation that converts the input string
122// so that outside codes don't have to know so much details. 116// to utf-8 and expands 'list' syntax.
123//
124// the string 'trans' is copied to an internal managed buffer,
125// so the caller can free memory of 'trans' at any time.
126void 117void
127keyboard_manager::register_user_translation (KeySym keysym, unsigned int state, const char *trans) 118keyboard_manager::register_user_translation (KeySym keysym, unsigned int state, const char *trans)
128{ 119{
129 keysym_t *key = new keysym_t;
130 wchar_t *wc = rxvt_mbstowcs (trans); 120 wchar_t *wc = rxvt_mbstowcs (trans);
131 char *translation = rxvt_wcstoutf8 (wc); 121 char *translation = rxvt_wcstoutf8 (wc);
132 free (wc); 122 free (wc);
133 123
124 if (strncmp (translation, "list", 4) == 0 && translation [4]
125 && strlen (translation) < STRING_MAX)
126 {
127 char *prefix = translation + 4;
128 char *middle = strchr (prefix + 1, translation [4]);
129 char *suffix = strrchr (prefix + 1, translation [4]);
130
131 if (suffix && middle && suffix > middle + 1)
132 {
133 int range = suffix - middle - 1;
134 int prefix_len = middle - prefix - 1;
135 char buf[STRING_MAX];
136
137 memcpy (buf, prefix + 1, prefix_len);
138 strcpy (buf + prefix_len + 1, suffix + 1);
139
140 for (int i = 0; i < range; i++)
141 {
142 buf [prefix_len] = middle [i + 1];
143 register_translation (keysym + i, state, strdup (buf));
144 }
145
146 free (translation);
147 return;
148 }
149 else
150 rxvt_warn ("unable to parse list-type keysym '%s', processing as normal keysym.\n", translation);
151 }
152
153 register_translation (keysym, state, translation);
154}
155
156void
157keyboard_manager::register_translation (KeySym keysym, unsigned int state, char *translation)
158{
159 keysym_t *key = new keysym_t;
160
134 if (key && translation) 161 if (key && translation)
135 { 162 {
136 key->keysym = keysym; 163 key->keysym = keysym;
137 key->state = state; 164 key->state = state;
138 key->range = 1;
139 key->str = translation; 165 key->str = translation;
140 key->type = keysym_t::STRING; 166 key->type = keysym_t::STRING;
141 167
142 if (strncmp (translation, "list", 4) == 0 && translation [4])
143 {
144 char *middle = strchr (translation + 5, translation [4]);
145 char *suffix = strrchr (translation + 5, translation [4]);
146
147 if (suffix && middle && suffix > middle + 1)
148 {
149 key->type = keysym_t::LIST;
150 key->range = suffix - middle - 1;
151
152 memmove (translation, translation + 4, strlen (translation + 4) + 1);
153 }
154 else
155 rxvt_warn ("cannot parse list-type keysym '%s', treating as normal keysym.\n", translation);
156 }
157 else if (strncmp (translation, "builtin:", 8) == 0) 168 if (strncmp (translation, "builtin:", 8) == 0)
158 key->type = keysym_t::BUILTIN; 169 key->type = keysym_t::BUILTIN;
159 170
160 register_keymap (key); 171 if (keymap.size () == keymap.capacity ())
172 keymap.reserve (keymap.size () * 2);
173
174 keymap.push_back (key);
175 hash[0] = 3;
161 } 176 }
162 else 177 else
163 { 178 {
164 delete key; 179 delete key;
165 free ((void *)translation); 180 free (translation);
166 rxvt_fatal ("out of memory, aborting.\n"); 181 rxvt_fatal ("memory allocation failure. aborting.\n");
167 } 182 }
168}
169
170void
171keyboard_manager::register_keymap (keysym_t *key)
172{
173 if (keymap.size () == keymap.capacity ())
174 keymap.reserve (keymap.size () * 2);
175
176 keymap.push_back (key);
177 hash[0] = 3;
178}
179
180void
181keyboard_manager::register_done ()
182{
183 setup_hash ();
184} 183}
185 184
186bool 185bool
187keyboard_manager::dispatch (rxvt_term *term, KeySym keysym, unsigned int state) 186keyboard_manager::dispatch (rxvt_term *term, KeySym keysym, unsigned int state)
188{ 187{
189 assert (hash[0] == 0 && "register_done() need to be called"); 188 assert (("register_done() need to be called", hash[0] == 0));
190 189
191 state &= OtherModMask; // mask out uninteresting modifiers 190 state &= OtherModMask; // mask out uninteresting modifiers
192 191
193 if (state & term->ModMetaMask) state |= MetaMask; 192 if (state & term->ModMetaMask) state |= MetaMask;
194 if (state & term->ModNumLockMask) state |= NumLockMask; 193 if (state & term->ModNumLockMask) state |= NumLockMask;
… …
199 198
200 int index = find_keysym (keysym, state); 199 int index = find_keysym (keysym, state);
201 200
202 if (index >= 0) 201 if (index >= 0)
203 { 202 {
204 const keysym_t &key = *keymap [index]; 203 keysym_t *key = keymap [index];
205 204
206 if (key.type != keysym_t::BUILTIN) 205 if (key->type != keysym_t::BUILTIN)
207 { 206 {
208 int keysym_offset = keysym - key.keysym;
209
210 wchar_t *wc = rxvt_utf8towcs (key.str); 207 wchar_t *wc = rxvt_utf8towcs (key->str);
211 char *str = rxvt_wcstombs (wc); 208 char *str = rxvt_wcstombs (wc);
212 // TODO: do (some) translations, unescaping etc, here (allow \u escape etc.) 209 // TODO: do (some) translations, unescaping etc, here (allow \u escape etc.)
213 free (wc); 210 free (wc);
214 211
215 switch (key.type)
216 {
217 case keysym_t::STRING:
218 output_string (term, str); 212 output_string (term, str);
219 break;
220
221 case keysym_t::LIST:
222 {
223 char buf[STRING_MAX];
224
225 char *prefix, *middle, *suffix;
226
227 prefix = str;
228 middle = strchr (prefix + 1, *prefix);
229 suffix = strrchr (middle + 1, *prefix);
230
231 memcpy (buf, prefix + 1, middle - prefix - 1);
232 buf [middle - prefix - 1] = middle [keysym_offset + 1];
233 strcpy (buf + (middle - prefix), suffix + 1);
234
235 output_string (term, buf);
236 }
237 break;
238 }
239 213
240 free (str); 214 free (str);
241 215
242 return true; 216 return true;
243 } 217 }
… …
245 219
246 return false; 220 return false;
247} 221}
248 222
249void 223void
250keyboard_manager::setup_hash () 224keyboard_manager::register_done ()
251{ 225{
252 unsigned int i, index, hashkey; 226 unsigned int i, index, hashkey;
253 vector <keysym_t *> sorted_keymap; 227 vector <keysym_t *> sorted_keymap;
254 uint16_t hash_bucket_size[KEYSYM_HASH_BUCKETS]; // size of each bucket 228 uint16_t hash_bucket_size[KEYSYM_HASH_BUCKETS]; // size of each bucket
255 229
256 memset (hash_bucket_size, 0, sizeof (hash_bucket_size)); 230 memset (hash_bucket_size, 0, sizeof (hash_bucket_size));
257 231
258 // determine hash bucket size 232 // determine hash bucket size
259 for (i = 0; i < keymap.size (); ++i) 233 for (i = 0; i < keymap.size (); ++i)
260 for (int j = min (keymap [i]->range, KEYSYM_HASH_BUCKETS) - 1; j >= 0; --j)
261 { 234 {
262 hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; 235 hashkey = keymap [i]->keysym & KEYSYM_HASH_MASK;
263 ++hash_bucket_size [hashkey]; 236 ++hash_bucket_size [hashkey];
264 } 237 }
265 238
266 // now we know the size of each bucket 239 // now we know the size of each bucket
267 // compute the index of each bucket 240 // compute the index of each bucket
268 hash [0] = 0; 241 hash [0] = 0;
269 for (index = 0, i = 1; i < KEYSYM_HASH_BUCKETS; ++i) 242 for (index = 0, i = 1; i < KEYSYM_HASH_BUCKETS; ++i)
… …
278 memset (hash_bucket_size, 0, sizeof (hash_bucket_size)); 251 memset (hash_bucket_size, 0, sizeof (hash_bucket_size));
279 252
280 // fill in sorted_keymap 253 // fill in sorted_keymap
281 // it is sorted in each bucket 254 // it is sorted in each bucket
282 for (i = 0; i < keymap.size (); ++i) 255 for (i = 0; i < keymap.size (); ++i)
283 for (int j = min (keymap [i]->range, KEYSYM_HASH_BUCKETS) - 1; j >= 0; --j)
284 { 256 {
285 hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK; 257 hashkey = keymap [i]->keysym & KEYSYM_HASH_MASK;
286 258
287 index = hash [hashkey] + hash_bucket_size [hashkey]; 259 index = hash [hashkey] + hash_bucket_size [hashkey];
288 260
289 while (index > hash [hashkey] 261 while (index > hash [hashkey]
290 && compare_priority (keymap [i], sorted_keymap [index - 1]) > 0) 262 && compare_priority (keymap [i], sorted_keymap [index - 1]) > 0)
291 { 263 {
292 sorted_keymap [index] = sorted_keymap [index - 1]; 264 sorted_keymap [index] = sorted_keymap [index - 1];
293 --index; 265 --index;
294 } 266 }
295 267
296 sorted_keymap [index] = keymap [i]; 268 sorted_keymap [index] = keymap [i];
297 ++hash_bucket_size [hashkey]; 269 ++hash_bucket_size [hashkey];
298 } 270 }
299 271
300 keymap.swap (sorted_keymap); 272 keymap.swap (sorted_keymap);
301 273
302#ifndef NDEBUG 274#ifndef NDEBUG
303 // check for invariants 275 // check for invariants
304 for (i = 0; i < KEYSYM_HASH_BUCKETS; ++i) 276 for (i = 0; i < KEYSYM_HASH_BUCKETS; ++i)
305 { 277 {
306 index = hash[i]; 278 index = hash[i];
307 for (int j = 0; j < hash_bucket_size [i]; ++j) 279 for (int j = 0; j < hash_bucket_size [i]; ++j)
308 { 280 {
309 if (keymap [index + j]->range == 1)
310 assert (i == (keymap [index + j]->keysym & KEYSYM_HASH_MASK)); 281 assert (i == (keymap [index + j]->keysym & KEYSYM_HASH_MASK));
311 282
312 if (j) 283 if (j)
313 assert (compare_priority (keymap [index + j - 1], 284 assert (compare_priority (keymap [index + j - 1],
314 keymap [index + j]) >= 0); 285 keymap [index + j]) >= 0);
315 } 286 }
… …
317 288
318 // this should be able to detect most possible bugs 289 // this should be able to detect most possible bugs
319 for (i = 0; i < sorted_keymap.size (); ++i) 290 for (i = 0; i < sorted_keymap.size (); ++i)
320 { 291 {
321 keysym_t *a = sorted_keymap[i]; 292 keysym_t *a = sorted_keymap[i];
322 for (int j = 0; j < a->range; ++j)
323 {
324 int index = find_keysym (a->keysym + j, a->state); 293 int index = find_keysym (a->keysym, a->state);
325 294
326 assert (index >= 0); 295 assert (index >= 0);
327 keysym_t *b = keymap [index]; 296 keysym_t *b = keymap [index];
328 assert (i == index // the normally expected result 297 assert (i == index // the normally expected result
329 || IN_RANGE_INC (a->keysym + j, b->keysym, b->keysym + b->range) 298 || a->keysym == b->keysym
330 && compare_priority (a, b) <= 0); // is effectively the same or a closer match 299 && compare_priority (a, b) <= 0); // is effectively the same or a closer match
331 }
332 } 300 }
333#endif 301#endif
334} 302}
335 303
336int 304int
… …
344 312
345 for (; index < end; ++index) 313 for (; index < end; ++index)
346 { 314 {
347 keysym_t *key = keymap [index]; 315 keysym_t *key = keymap [index];
348 316
349 if (key->keysym <= keysym && keysym < key->keysym + key->range 317 if (key->keysym == keysym
350 // match only the specified bits in state and ignore others 318 // match only the specified bits in state and ignore others
351 && (key->state & state) == key->state) 319 && (key->state & state) == key->state)
352 return index; 320 return index;
353 } 321 }
354 322

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