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
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
/*
* Copyright (c) 2002-2004 Jesper K. Pedersen <blackie@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
**/
#include "emacsregexpconverter.h"
#include "regexp.h"
#include "altnregexp.h"
#include "concregexp.h"
#include "lookaheadregexp.h"
#include "textrangeregexp.h"
#include "textregexp.h"
#include "compoundregexp.h"
#include "dotregexp.h"
#include "positionregexp.h"
#include "repeatregexp.h"
#include <tdemessagebox.h>
#include <tdelocale.h>
bool EmacsRegExpConverter::canParse()
{
return false;
}
TQString EmacsRegExpConverter::toString( AltnRegExp* regexp, bool markSelection )
{
TQString res;
bool first = true;
RegExpList list = regexp->children();
for ( RegExpListIt it(list); *it; ++it ) {
if ( !first ) {
res += TQString::fromLatin1("\\|");
}
first = false;
res += toStr( *it, markSelection );
}
return res;
}
TQString EmacsRegExpConverter::toString( ConcRegExp* regexp, bool markSelection )
{
TQString res;
RegExpList list = regexp->children();
for ( RegExpListIt it(list); *it; ++it ) {
TQString startPar = TQString::fromLocal8Bit("");
TQString endPar = TQString::fromLocal8Bit("");
if ( (*it)->precedence() < regexp->precedence() ) {
startPar = TQString::fromLatin1( "\\(" );
endPar = TQString::fromLatin1( "\\)" );
}
res += startPar + toStr( *it, markSelection ) + endPar;
}
return res;
}
TQString EmacsRegExpConverter::toString( LookAheadRegExp* /*regexp*/, bool /*markSelection*/ )
{
static bool haveWarned = false;
if ( ! haveWarned ) {
KMessageBox::sorry( 0, i18n("Look ahead regular expressions not supported in Emacs style") );
haveWarned = true;
}
return TQString();
}
TQString EmacsRegExpConverter::toString( TextRangeRegExp* regexp, bool /*markSelection*/ )
{
TQString txt;
bool foundCarrot = false;
bool foundDash = false;
bool foundParenthesis = false;
// print the single characters, but keep "^" as the very
// last element of the characters.
TQStringList chars = regexp->chars();
for (unsigned int i = 0; i< chars.count(); i++) {
if ( *chars.at(i) == TQChar(']') ) {
foundParenthesis = true;
}
else if ( *chars.at(i) == TQChar('-') ) {
foundDash = true;
}
else if ( *chars.at(i) == TQChar('^') ) {
foundCarrot = true;
}
else {
txt.append( *chars.at(i) );
}
}
// Now insert the ranges.
TQPtrList<StringPair> ranges = regexp->range();
for ( TQPtrListIterator<StringPair> it(ranges); *it; ++it ) {
txt.append((*it)->first()+ TQString::fromLatin1("-")+ (*it)->second());
}
// Ok, its time to build each part of the regexp, here comes the rule:
// if a ']' is one of the characters, then it must be the first one in the
// list (after then opening '[' and eventually negation '^')
// Next if a '-' is one of the characters, then it must come
// finally if '^' is one of the characters, then it must not be the first
// one!
TQString res = TQString::fromLatin1("[");
if ( regexp->negate() )
res.append(TQString::fromLatin1("^"));
// a ']' must be the first character in teh range.
if ( foundParenthesis ) {
res.append(TQString::fromLatin1("]"));
}
// a '-' must be the first character ( only coming after a ']')
if ( foundDash ) {
res.append(TQString::fromLatin1("-"));
}
res += txt;
// Insert equivalents to \s,\S,\d,\D,\w, and \W
// non-digit, non-space, and non-word is not supported in Emacs style
if ( regexp->digit() )
res += TQString::fromLocal8Bit("0-9");
if ( regexp->space() )
res += TQString::fromLocal8Bit(" ") + TQString( TQChar( (char) 9 ) ); // Tab char
if ( regexp->wordChar() )
res += TQString::fromLocal8Bit("a-zA-Z");
if ( foundCarrot ) {
res.append( TQChar( '^' ) );
}
res.append(TQString::fromLatin1("]"));
return res;
}
TQString EmacsRegExpConverter::toString( CompoundRegExp* regexp, bool markSelection )
{
return toStr( regexp->child(), markSelection );
}
TQString EmacsRegExpConverter::toString( DotRegExp* /*regexp*/, bool /*markSelection*/ )
{
return TQString::fromLatin1( "." );
}
TQString EmacsRegExpConverter::toString( PositionRegExp* regexp, bool /*markSelection*/ )
{
static bool haveWarned = false;
switch ( regexp->position()) {
case PositionRegExp::BEGLINE:
return TQString::fromLatin1("^");
case PositionRegExp::ENDLINE:
return TQString::fromLatin1("$");
case PositionRegExp::WORDBOUNDARY:
case PositionRegExp::NONWORDBOUNDARY:
if ( ! haveWarned ) {
KMessageBox::sorry( 0, i18n( "Word boundary and non word boundary is not supported in Emacs syntax" ) );
haveWarned = true;
return TQString::fromLatin1("");
}
}
return TQString::fromLatin1("");
}
TQString EmacsRegExpConverter::toString( RepeatRegExp* regexp, bool markSelection )
{
RegExp* child = regexp->child();
TQString cText = toStr( child, markSelection );
TQString startPar;
TQString endPar;
if ( child->precedence() < regexp->precedence() ) {
startPar = TQString::fromLatin1( "\\(" );
endPar = TQString::fromLatin1( "\\)" );
}
if (regexp->min() == 0 && regexp->max() == -1) {
return startPar + cText +endPar + TQString::fromLocal8Bit("*");
}
else if ( regexp->min() == 0 && regexp->max() == 1 ) {
return startPar + cText + endPar + TQString::fromLocal8Bit("?");
}
else if ( regexp->min() == 1 && regexp->max() == -1 ) {
return startPar + cText + endPar + TQString::fromLocal8Bit("+");
}
else {
TQString res = TQString::fromLatin1("");
for ( int i = 0; i < regexp->min(); ++i ) {
res += TQString::fromLatin1( "\\(" ) + cText + TQString::fromLatin1( "\\)" );
}
if ( regexp->max() != -1 ) {
for ( int i = regexp->min(); i < regexp->max(); ++i ) {
res += TQString::fromLatin1("\\(") + cText + TQString::fromLatin1("\\)?");
}
}
else
res += TQString::fromLatin1("+");
return res;
}
}
TQString EmacsRegExpConverter::toString( TextRegExp* regexp, bool /*markSelection*/ )
{
TQValueList<TQChar> list;
list << TQChar('$')
<< TQChar('^')
<< TQChar('.')
<< TQChar('*')
<< TQChar('+')
<< TQChar('?')
<< TQChar('[')
<< TQChar(']')
<< TQChar('\\');
TQString res = escape( regexp->text(), list, TQChar('\\') );
return res;
}
TQString EmacsRegExpConverter::name()
{
return TQString::fromLatin1( "Emacs" );
}
int EmacsRegExpConverter::features()
{
return WordStart | WordEnd;
}
|
