1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
/**
*
*
*
*
* TODO
* - Add exception throwing when h == NULL
* - Not init h when implicit constructor is launched
*/
#include <string.h>
#ifdef SYSTEM_LIBEXTTEXTCAT
#include <libexttextcat/textcat.h>
#include <libexttextcat/common.h>
#include <libexttextcat/constants.h>
#include <libexttextcat/fingerprint.h>
#else
#include <textcat.h>
#include <common.h>
#include <constants.h>
#include <fingerprint.h>
#endif
#include <sal/types.h>
#include<rtl/character.hxx>
#include "simpleguesser.hxx"
static int startsAsciiCaseInsensitive(const std::string &s1, const std::string &s2){
size_t i;
int ret = 0;
size_t min = s1.length();
if (min > s2.length())
min = s2.length();
for(i = 0; i < min && s2[i] && s1[i] && !ret; i++){
ret = rtl::toAsciiUpperCase(static_cast<unsigned char>(s1[i]))
- rtl::toAsciiUpperCase(static_cast<unsigned char>(s2[i]));
if(s1[i] == '.' || s2[i] == '.') {ret = 0;} //. is a neutral character
}
return ret;
}
namespace {
/**
* This following structure is from textcat.c
*/
typedef struct textcat_t{
void **fprint;
char *fprint_disable;
uint4 size;
uint4 maxsize;
char output[MAXOUTPUTSIZE];
} textcat_t;
// end of the 3 structs
}
SimpleGuesser::SimpleGuesser()
{
h = nullptr;
}
SimpleGuesser& SimpleGuesser::operator=(const SimpleGuesser& sg){
// Check for self-assignment!
if (this == &sg) // Same object?
return *this; // Yes, so skip assignment, and just return *this.
if(h){textcat_Done(h);}
h = sg.h;
return *this;
}
SimpleGuesser::~SimpleGuesser()
{
if(h){textcat_Done(h);}
}
/*!
\fn SimpleGuesser::GuessLanguage(char* text)
*/
std::vector<Guess> SimpleGuesser::GuessLanguage(const char* text)
{
std::vector<Guess> guesses;
if (!h)
return guesses;
int len = strlen(text);
if (len > MAX_STRING_LENGTH_TO_ANALYSE)
len = MAX_STRING_LENGTH_TO_ANALYSE;
const char *guess_list = textcat_Classify(h, text, len);
if (strcmp(guess_list, TEXTCAT_RESULT_SHORT_STR) == 0)
return guesses;
int current_pointer = 0;
while(guess_list[current_pointer] != '\0')
{
while (guess_list[current_pointer] != GUESS_SEPARATOR_OPEN && guess_list[current_pointer] != '\0')
current_pointer++;
if(guess_list[current_pointer] != '\0')
{
Guess g(guess_list + current_pointer);
guesses.push_back(g);
current_pointer++;
}
}
return guesses;
}
Guess SimpleGuesser::GuessPrimaryLanguage(const char* text)
{
std::vector<Guess> ret = GuessLanguage(text);
return ret.empty() ? Guess() : ret[0];
}
/**
* Is used to know which language is available, unavailable or both
* when mask = 0xF0, return only Available
* when mask = 0x0F, return only Unavailable
* when mask = 0xFF, return both Available and Unavailable
*/
std::vector<Guess> SimpleGuesser::GetManagedLanguages(const char mask)
{
textcat_t *tables = static_cast<textcat_t*>(h);
std::vector<Guess> lang;
if(!h){return lang;}
for (size_t i=0; i<tables->size; ++i)
{
if (tables->fprint_disable[i] & mask)
{
std::string langStr = "[";
langStr += fp_Name(tables->fprint[i]);
Guess g(langStr.c_str());
lang.push_back(g);
}
}
return lang;
}
std::vector<Guess> SimpleGuesser::GetAvailableLanguages()
{
return GetManagedLanguages( sal::static_int_cast< char >( 0xF0 ) );
}
std::vector<Guess> SimpleGuesser::GetUnavailableLanguages()
{
return GetManagedLanguages( sal::static_int_cast< char >( 0x0F ));
}
std::vector<Guess> SimpleGuesser::GetAllManagedLanguages()
{
return GetManagedLanguages( sal::static_int_cast< char >( 0xFF ));
}
void SimpleGuesser::XableLanguage(const std::string& lang, char mask)
{
textcat_t *tables = static_cast<textcat_t*>(h);
if(!h){return;}
for (size_t i=0; i<tables->size; i++)
{
std::string language(fp_Name(tables->fprint[i]));
if (startsAsciiCaseInsensitive(language,lang) == 0)
tables->fprint_disable[i] = mask;
}
}
void SimpleGuesser::EnableLanguage(const std::string& lang)
{
XableLanguage(lang, sal::static_int_cast< char >( 0xF0 ));
}
void SimpleGuesser::DisableLanguage(const std::string& lang)
{
XableLanguage(lang, sal::static_int_cast< char >( 0x0F ));
}
void SimpleGuesser::SetDBPath(const char* path, const char* prefix)
{
if (h)
textcat_Done(h);
h = special_textcat_Init(path, prefix);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
