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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "wordcompletion.h"
#include "osystem_ds.h"
#include "engines/agi/agi.h" // Caution for #define for NUM_CHANNELS, causes problems in mixer_intern.h
#ifdef ENABLE_AGI
namespace DS {
// Default dictionary is about 64Kb, so 96Kb should be enough for future expansion
#define WORD_BUFFER_SIZE (96 * 1024)
// Default dictionary has ~8000 words
#define MAX_WORD_COUNT 12000
char wordBuffer[WORD_BUFFER_SIZE];
int wordBufferPos = 0;
char *wordBufferPtr[MAX_WORD_COUNT];
int wordBufferPtrPos = 0;
void addAutoCompleteLine(const char *line) {
while (*line != 0) {
char word[32];
int length;
// Skip the T9-style numbers
while (*line != ' ') {
line++;
}
line++;
do {
length = 0;
if (*line == ' ') line++;
// Copy the new word
do {
word[length++] = *line++;
} while ((*line != '\0') && (*line != ' ') && (*line != '\n'));
word[length] = '\0';
// Store a pointer to the start of the word
wordBufferPtr[wordBufferPtrPos++] = &wordBuffer[wordBufferPos];
// copy the new word into the buffer
strcpy(&wordBuffer[wordBufferPos], word);
wordBufferPos += strlen(word) + 1;
} while (*line == ' ');
}
}
int stringCompare(const void *a, const void *b) {
const char** as = (const char **) a;
const char** bs = (const char **) b;
return scumm_stricmp(*as, *bs);
}
void clearAutoCompleteWordList() {
wordBufferPtrPos = 0;
wordBufferPos = 0;
}
void sortAutoCompleteWordList() {
// Sort the whole word list into alphabetical order
qsort((void *)wordBufferPtr, wordBufferPtrPos, 4, stringCompare);
}
// Sends the current available words to the virtual keyboard code for display
bool findWordCompletions(const char *input) {
int min = 0;
int max = wordBufferPtrPos - 1;
char *word;
int position;
char partialWord[32];
// Early out if dictionary not loaded
if (wordBufferPtrPos == 0)
return false;
OSystem_DS *system = (OSystem_DS *) g_system;
system->clearAutoComplete();
int start = 0;
for (int r = strlen(input) - 1; r>0; r--) {
if (input[r] == ' ') {
start = r + 1;
break;
}
}
strcpy(partialWord, &input[start]);
if (*partialWord == 0) {
return false;
}
do {
position = min + ((max - min) / 2);
// Get the word from the dictonary line
word = wordBufferPtr[position];
// Now check to see if the word is before or after the stub we're after
int result = scumm_stricmp(partialWord, word);
if (result == 0) {
// We've found the whole word. Aren't we good.
break;
} else if (result > 0) {
// We're too early, so change the minimum position
min = position + 1;
} else if (result < 0) {
// We're too early, so change the maximum position
max = position - 1;
}
// consolePrintf("Word: %s, (%d, %d) result: %d\n", word, min, max, result);
} while (max - min > 0);
position = min;
word = wordBufferPtr[position];
//consolePrintf("Final word: %s\n", word);
system->setCharactersEntered(strlen(partialWord));
bool match = true;
for (int r = 0; partialWord[r] != 0; r++) {
if (word[r] != partialWord[r]) {
match = false;
break;
}
}
if (!match) {
position++;
if (position == wordBufferPtrPos)
return false;
word = wordBufferPtr[position];
// consolePrintf("Final word: %s\n", word);
}
match = true;
do {
for (int r = 0; partialWord[r] != 0; r++) {
if (word[r] != partialWord[r]) {
match = false;
break;
}
}
if (match) {
system->addAutoComplete(word);
}
position++;
if (position < wordBufferPtrPos) {
word = wordBufferPtr[position];
}
} while ((match) && (position < wordBufferPtrPos));
return true;
}
} // End of namespace DS
#endif
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